DINING CHAIR

Abstract

The present disclosure provides a dining chair including: a seat including a seat portion and a backrest portion extending upwardly from a rear end of the seat portion; a base supporting the seat; a tray detachably connected to the seat and including a tray portion located in front of the backrest portion and above the seat portion; a seat pad detachably disposed on the seat, in which the seat pad includes a seat cushion and a backrest cushion, the seat cushion is located above the seat portion and below the tray portion, and the backrest cushion is located between the tray portion and the backrest cushion in a front-rear direction; and a back pad detachably disposed on the backrest cushion, in which the back pad includes a cushion body and the cushion body is located between the tray portion and the backrest cushion in the front-rear direction.

Claims

1. A dining chair, comprising: a seat comprising a seat portion and a backrest portion extending upwardly from a rear end of the seat portion; a base supporting the seat; a tray detachably connected to the seat and comprising a tray portion, wherein the tray portion is located in front of the backrest portion and above the seat portion; a seat pad detachably disposed on the seat, wherein the seat pad comprises a seat cushion and a backrest cushion, the seat cushion is located above the seat portion and below the tray portion, and the backrest cushion is located between the tray portion and the backrest cushion in a front-rear direction; and a back pad detachably disposed on the backrest cushion, wherein the back pad comprises a cushion body, and the cushion body is located between the tray portion and the backrest cushion in the front-rear direction.

2. The dining chair according to claim 1, wherein the back pad is provided with an outer covering, and the outer covering comprises a covering body encasing the cushion body and a connecting member detachably connected to the backrest cushion.

3. The dining chair according to claim 2, wherein the connecting member is a strap member, two ends of the strap member are each connected to the covering body, and the strap member is enclosed with the covering body to form a closed loop for insertion of the backrest cushion.

4. The dining chair according to claim 2, wherein the connecting member is configured as two strap members, each of the two strap members has a connecting end and a free end, the two connecting ends of the two strap members are connected to the covering body, and the two free ends of the two strap members are connected to each other, such that the two strap members and the covering body are enclosed to form a closed loop for insertion of the backrest cushion.

5. The dining chair according to claim 2, wherein the connecting member is disposed at a top portion of the covering body, the connecting member and the covering body are enclosed to form an accommodating space, the connecting member is provided with an opening to allow the backrest cushion to enter the accommodating space, and the opening is located below the accommodating space.

6. The dining chair according to claim 5, wherein the covering body is provided with a pick-and-place opening, the pick-and-place opening is configured to allow the cushion body to be put into or taken out of the covering body, and the connecting member covers the pick-and-place opening.

7. The dining chair according to claim 1, wherein the cushion body has a curved cross-section protruding towards the backrest cushion.

8. The dining chair according to claim 2, wherein the seat pad comprises an outer cover encasing the seat cushion and the backrest cushion, and the connecting member is detachably connected to the outer cover.

9. The dining chair according to claim 8, wherein the seat pad defines a seating space, the seat pad comprises a cushion core and a positioning structure, the cushion core comprises the seat cushion and the backrest cushion, and the outer cover encases the cushion core, wherein the cushion core has a front surface facing the seating space and a back surface facing away from the seating space, wherein the outer cover has a first cover body facing the front surface and a second cover body facing the back surface; wherein the positioning structure is provided between the cushion core and the first cover body, to allow the cushion core to be detachably connected to the first cover body.

10. The dining chair according to claim 9, wherein the positioning structure comprises: a positioning member connected to the first cover body; and a positioning hole extending through the front surface and the back surface in a first axial direction; wherein the positioning member passes through the positioning hole and is detachably connected to the back surface.

11. The dining chair according to claim 10, wherein the positioning member comprises: a body portion accommodated in the positioning hole and connected to the first cover body, and extending in the first axial direction; and a positioning portion connected to the body portion, exposed from the back surface, detachably connected to the back surface, and extending on a plane intersected with the first axial direction.

12. The dining chair according to claim 11, wherein the positioning portion is movably connected to the body portion, the positioning portion is capable of being moved to orient the first axial direction relative to the body portion, so as to pass through the positioning hole with the body portion.

13. The dining chair according to claim 11, wherein in a plane intersected with the first axial direction, the positioning portion extends beyond the positioning hole in at least two different directions relative to the positioning hole, respectively, to abut against the back surface.

14. The dining chair according to claim 13, wherein a hardness of the positioning portion is greater than that of the body portion.

15. The dining chair according to claim 14, wherein the body portion comprises a first strap body, the positioning portion comprises a second strap body and a hard plate, and the second strap body encases the hard plate.

16. The dining chair according to claim 15, wherein the hard plate is made of PE or PP.

17. The dining chair according to claim 12, wherein in a second axial direction intersected with the first axial direction, the positioning portion extends beyond the positioning hole relative to the positioning hole in two opposite directions of the second axial direction, respectively, to abut against the back surface.

18. The dining chair according to claim 17, wherein the positioning portion is provided with a connecting portion connected to the body portion, the body portion and the positioning portion are movably connected at the connecting portion, and the connecting portion is spaced apart from a centerline of the positioning portion in the second axial direction.

19. The dining chair according to claim 9, wherein the cushion core comprises a seat cushion and a backrest cushion connected to each other, the outer cover comprises a seat cover encasing the seat cushion and a backrest cover encasing the backrest cushion, correspondingly, the seat cover and the backrest cover are connected to each other, the positioning structure is connected to the first cover body at a junction between the seat cover and the backrest cover, and the positioning structure is connected to the cushion core at a junction between the seat cushion and the backrest cushion.

20. The dining chair according to claim 19, wherein the second cover body is provided with an opening for picking and placing the cushion core, and the opening extends from the backrest cover to the seat cover.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0077] The accompanying drawings, which are included herein to provide a further understanding of the present disclosure and are incorporated herein to constitute a part of the present specification. The accompanying drawings illustrate embodiments of the present disclosure and are used in conjunction with the following description to illustrate the concepts of the present disclosure. In the accompanying drawings:

[0078] FIG. 1 shows a perspective view of a dining chair provided with a back pad;

[0079] FIG. 2 shows an exploded perspective view of the dining chair shown in FIG. 1;

[0080] FIG. 3 shows a perspective view of the dining chair shown in FIG. 1 with a tray, a protective member and the back pad removed;

[0081] FIG. 4 schematically shows a view of an outer covering of the back pad according to an embodiment of the present disclosure;

[0082] FIG. 5 schematically shows a view of a back pad provided with a strap member according to an embodiment of the present disclosure;

[0083] FIG. 6 schematically shows a view of a back pad provided with two strap members according to another embodiment of the present disclosure;

[0084] FIG. 7 is a view schematically showing that a back pad according to a further embodiment of the present disclosure is provided with an connecting member on its top portion, the connecting member of the back pad forming an accommodating space with a covering body of the back pad, and the accommodating space has an opening for the entry of the backrest cushion;

[0085] FIG. 8 is a view schematically showing that the connecting member of the back pad in FIG. 7 is turned upwardly to expose a pick-and-place opening for placing an cushion body into or taking the cushion body out of the covering body;

[0086] FIG. 9 is a perspective schematic view of a seat pad according to the present disclosure, schematically illustrating a front surface of the seat pad;

[0087] FIG. 10 is a perspective schematic view of a seat pad according to the present disclosure, schematically illustrating a front surface of the seat pad;

[0088] FIG. 11A schematically shows a perspective view of an outer cover with the cushion core removed, in which the outer cover is provided with a positioning member;

[0089] FIG. 11B is an enlarged view of the positioning member in FIG. 11A;

[0090] FIG. 12 is a perspective view schematically showing that the outer cover encasing the cushion core in FIG. 10 is opened and exposes a positioning hole of the cushion core, the positioning hole extends through the cushion core and the positioning member of the outer cover, at this point, does not pass through the positioning hole of the cushion core;

[0091] FIG. 13A schematically shows a state in which the positioning member is passing through the positioning hole; and

[0092] FIG. 13B schematically shows a state in which the positioning member abuts against the back surface of the cushion core after passing through the positioning hole.

REFERENCE NUMERALS

[0093] 10 dining chair [0094] 20 seat [0095] 210 seat portion [0096] 211 211 seat portion through-hole [0097] 220 backrest portion [0098] 221 backrest portion through-hole [0099] 230 leg rest portion [0100] 30 base [0101] 310 first U-shaped member [0102] 320 second U-shaped member [0103] 311 first front support leg [0104] 321 second front support leg [0105] 312 first rear support leg [0106] 322 second rear support leg [0107] 330 transverse member [0108] 340, 350 T-profile member [0109] 40 tray [0110] 410 tray portion [0111] 4101 inner tray edge [0112] 420 protruding rib [0113] 430 tray latch [0114] 50 seat pad [0115] 500 cushion core [0116] 501 front surface [0117] 502 back surface [0118] 510 seat cushion [0119] 511 seat cushion through-hole [0120] 520 backrest cushion [0121] 521 lateral opening [0122] 530 leg rest cushion [0123] 60 back pad [0124] 610 cushion body [0125] 70 protective member [0126] 700 U-shaped body portion [0127] 710 crotch member [0128] 7101 crotch latch [0129] 720 protrusion [0130] 730 baffle plate [0131] 80 outer covering [0132] 810 covering body [0133] 811 pick-and-place opening [0134] 8111 third connecting member [0135] 8112 fourth connecting member [0136] 820 connecting member [0137] 821 connecting end [0138] 822 free end [0139] 8221 first connecting member [0140] 8222 second connecting member [0141] 823 opening [0142] 800 outer cover [0143] 801 seat cover [0144] 802 backrest cover [0145] 803 leg rest cover [0146] 834 outer cover through-hole [0147] 830 first cover body [0148] 840 second cover body [0149] 844 opening [0150] 845 zipper [0151] 846 covering portion [0152] 900 positioning structure [0153] 910 positioning member [0154] 911 body portion [0155] 914 first strap body [0156] 912 positioning portion [0157] 913 hard plate [0158] 915 second strap body [0159] 920 positioning hole [0160] C connecting portion [0161] L1 length of the first positioning portion [0162] L2 length of the second positioning portion [0163] 90 footrest apparatus

DETAILED DESCRIPTION

[0164] In the following, exemplary embodiments will be described in detail with reference to the accompanying drawings. Whereas it is susceptible to various modified and alternative forms of the present disclosure, specific embodiments thereof are illustrated by way of example in the accompanying drawings. However, the present disclosure should not be construed as limiting the embodiments illustrated herein; on the contrary, the present disclosure will encompass all modifications, equivalents, and alternatives that fall within the spirit and scope of the embodiments.

[0165] Furthermore, relational terms such as upper/upper portion/above and lower/lower portion/below are used only to distinguish one object or element from another object or element, but do not necessarily require or involve any physical or logical relationship or order between these objects or elements.

[0166] The present disclosure will be described in detail below with reference to the accompanying drawings.

[0167] FIG. 1 schematically illustrates a dining chair 10 of the present disclosure having an accessory. The dining chair 10 includes a seat 20, a base 30, a tray 40, a seat pad 50, and other accessories, such as a back pad 60, a footrest apparatus 90, and a protective member 70. The seat 20 includes a seat portion 210, a backrest portion 220 extending upwardly from a rear end of the seat portion 210, and a leg rest portion 230 extending downwardly from a front end of the seat portion 210. The seat portion 210 is configured to carry buttocks and/or thighs of a child, the backrest portion 220 is configured to abut forwardly against a back of the child, and the leg rest portion 230 is configured to abut forwardly against lower legs of the child. The base 30 is disposed below and supports the seat 20 and is movably connected to the seat 20 such that the seat 20 is adjustable in vertical height relative to base 30. A tray 40 is detachably connected to the seat 20 and is disposed in front of the backrest portion 220 of the seat 20 and above the seat portion 210 of the seat 20 to carry food for the child to consume.

[0168] The seat pad 50 is detachably disposed on the seat 20. The seat pad 50 includes a seat cushion 510, a backrest cushion 520 extending upwardly from a rear end of the seat cushion 510, and a leg rest cushion 530 extending downwardly from a front end of the seat cushion 510, i.e., the seat cushion 510, the backrest cushion 520, and the leg rest cushion 530 are connected to each other, the seat cushion 510 is located above the seat portion 210, the backrest cushion 520 is located in front of the backrest portion 220, and the leg rest cushion 530 is located in front of the leg rest cushion portion 230, so that the child riding in the seat 20 may be in direct contact with the seat pad 50 that covers a surface of the seat 20 instead of being in direct contact with the seat 20, so as to improve the comfort of the child's seating. A footrest apparatus 90 is attached to the leg rest portion 230 of the seat 20 and is located below the leg rest cushion 530 of the seat pad 50 to provide support for the feet of the child seated in the seat 20. The protective member 70 is detachably connected to the backrest portion 220 and the seat portion 210 to define a seating space for a child to seating in conjunction with the seat 20, to restrict the child from getting out of the seating space, and the protective member 70 is disposed below and supports the tray 40. The back pad 60 is detachably disposed on the backrest cushion 520 of the seat pad 50. When he back pad 60 is mounted to the backrest cushion 520, an interspace between the backrest cushion 520 and the tray 40 and the tray 40 can be reduced to allow the backrest cushion 520 to provide support for a back of a small-sized child, and when the back pad 60 is detached from the backrest cushion 520, the backrest cushion 520 is allowed to provide support for a back of a large-sized child, enabling the dining chair 10 to be adapted to children of different body sizes.

[0169] In other embodiments, the seat 20 may include only the seat portion 210 and the backrest portion 220 extending upwardly from the rear end of the seat portion 210, without the leg rest portion 230 and the footrest apparatus 90 provided on the leg rest portion 230. Correspondingly, the seat pad 50 may include only the seat cushion 510 disposed above the seat portion 210 and the backrest cushion 520 disposed in front of the backrest portion 220, without the leg rest cushion 530. Other structures are consistent with the above embodiments and will not be described herein.

[0170] Hereinafter, the connection relationship between various components of the dining chair 10 of the present disclosure is described in detail with reference to FIG. 2.

[0171] Referring to FIG. 1 and FIG. 2, the base 30 is configured to be supported on a floor. The base 30 includes two inverted U-shaped members 310, 320 spaced apart in a left-right direction, the two inverted U-shaped members 310, 320 comprise a first inverted U-shaped members 310 and a second inverted U-shaped members 320. In conjunction with FIG. 3, the first inverted U-shaped member 310 includes a first front support leg 311 and a first rear support leg 312 spaced apart in a front-rear direction, and the second inverted U-shaped member 320 includes a second front support leg 321 and a second rear support leg 322 spaced apart in the front-rear direction. The first front leg 311 and the first rear support leg 312 of the first inverted U-shaped member 310 are not in parallel. Moreover, an angle between a top portion of the first inverted U-shaped member 310 and the first front support leg 311 is greater than 90 degrees, and an angle between a top portion of the first inverted U-shaped member 310 and the first rear support leg 312 is greater than 90 degrees. The second front leg 321 and the second rear support leg 322 of the second inverted U-shaped member 320 are not in parallel. Moreover, an angle between the top portion of the second inverted U-shaped member 320 and the second front support leg 321 is greater than 90 degrees, and an angle between the top portion of the second inverted U-shaped member 320 and the second rear support leg 322 is greater than 90 degrees. The base 30 further includes a transverse member 330 connected to the first inverted U-shaped member 310 and the second inverted U-shaped member 320, and optionally, the transverse member 330 is connected to the first front support leg 311 and the second front support leg 321. The transverse member 330 may formed by an assembly having a polypropylene injection-molded cover and a folded sheet steel. Two T-profile members 340, 350 are secured on a front surface of the transverse member 330. The two T-profile members 340, 350 may be made of, for example, POM or nylon.

[0172] Two aluminum extruded members (not shown) adapted to the two T-profile members 340, 350 are provided on a back side of the leg rest portion 230 of the seat 20. When the seat 20 is assembled with the base 30, the two aluminum extruded members slide on the two T-profile members 340, 350 of the base 30, such that the seat 20 is moved uprightly on a front side of the front support legs 311, 321 relative to the base 30 in an extension direction of the T-profile members 340, 350 for height adjustment. When the seat 20 reaches a locked position where the seat 20 may be locked relative to this base 30, the seat 20 may be locked at this locked position by a locking mechanism on the T-profile members 340, 350.

[0173] In order to optimize logistical efficiency and reduce storage costs, the dining chair 10 of the present disclosure has been designed with particular consideration to minimize packaging volume. The seat 20 and the base 30 are skillfully designed as two separate modules, and the seat 20 may be nested with the base 30, thereby significantly reducing a space required for packaging.

[0174] In order to more clearly describe the position and connection relationships between the seat 20 and the seat pad 50, in FIG. 3, other accessories such as the tray 40, the protective member 70 and the back pad 60 in the dining chair of FIG. 1 are removed.

[0175] Referring to FIG. 3, the seat 20 includes a seat portion 210, a backrest portion 220, and a leg rest portion 230, as previously described. The seat portion 210 is provided with a seat portion through-hole 211 (see FIG. 2) in a middle of a front side of the seat portion 210, which is configured to be connected with the protective member 70. Here, the front side of the seat portion 210 is relative to the backrest portion 220 of the seat 20, a side of the seat portion 210 away from the backrest portion 220 is the front side of the seat portion 210, and the front side of the seat portion 210 is connected to an upper side of the leg rest portion 230 extending downwardly from the seat portion 210. Left and right sides of the backrest portion 220 are each provided with a backrest portion through-hole 221 (see FIG. 2) configured to be connected with the protective member 70. The leg rest portion 230 is in insertion engagement with the footrest apparatus 90 on a surface of the leg rest portion 230 that faces the lower legs of the child, such that the footrest apparatus 90 is connected to the leg rest portion 230 of the seat 20. The seat 20 may be made of a variety of materials, for example, wood, plastic such as polypropylene, and is rigid enough to support a child seated therein.

[0176] Referring to FIG. 3, the seat pad 50 is detachably disposed on the seat 20, as previously described. The seat pad 50 is matched with the seat 20 in shape and has a seat cushion 510, a backrest cushion 520, and a leg rest cushion 530 respectively corresponding to the seat portion 210, the backrest portion 220, and the leg rest portion 230 of the seat 20. The seat cushion 510 is located above the seat portion 210 and lower than the tray 40, the backrest cushion 520 is disposed in front of the backrest portion 220 in a front-rear direction, and the leg rest cushion 530 is disposed in front of the leg rest portion 230 in the front-rear direction. A seat cushion through-hole 511, which is corresponding to the seat portion through-hole 211, is provided in the middle of the front side of the seat cushion 510 of the seat pad 50. The seat cushion through-hole 511 is overlapped with the aforementioned seat portion through-hole 211 to allow the protective member 70 to pass through to be connected with the seat portion through-hole 211. Each of the left and right sides of the backrest cushion 520 of the seat pad 50 is provided with a lateral opening 521 corresponding to the aforementioned backrest portion through-hole 221 in position, through which the protective member 70 passes to be connected with the backrest portion through-holes 221. Based on the above description, the protective member 70 is connected to the seat portion through-hole 211 of the seat portion 210 and the backrest portion through-hole 221 of the backrest portion 220, to be mounted and positioned to the seat 20, and the protective member 70 need to pass through the seat pad 50 in order to realize its mounting and positioning with the seat 20. Thus, the seat pad 50 is indirectly positioned on the seat 20 due to its connection with the protective member 70, effectively preventing the displacement of the seat pad 50 relative to the seat 20.

[0177] It may be appreciated that the seat cushion 510, the backrest cushion 520, and the leg rest cushion 530 of the seat pad 50 may be integrally formed or may be manufactured separately and then assembled.

[0178] The seat pad 50 may be made of, for example, a PU (polyurethane) foam, which may prevent the child from directly contacting the surface of the seat and provide a more comfortable seating for the child. In this case, the seat pad 50 includes only the seat cushion 510, the backrest cushion 520 and the leg rest cushion 530, and the seat cushion 510, the backrest cushion 520 and the leg rest cushion 530 are made of the same PU foam.

[0179] Considering a cleaning need of the seat pad 50, the seat pad 50 may further include a detachable outer cover, which encases the seat cushion 510, the backrest cushion 520 and the leg rest cushion 530, enabling convenient removal for cleaning to ensure the hygiene of the seat pad 50. That is, the seat cushion 50 in this case includes the outer cover and a cushion core including the seat pad 510, the backrest cushion 520 and the leg rest cushion 530.

[0180] As shown in FIGS. 1 to 2, the protective member 70 includes a U-shaped body portion 700, a crotch member 710 extending from the U-shaped body portion 700, and a baffle plate 730 extending from the U-shaped body portion 700.

[0181] Protrusions 720 curved in a same direction are provided at two ends of the U-shaped body portion 700, respectively, to be engaged with the backrest portion through-hole 221. When the U-shaped body portion 700 is to be mounted, the two ends may be inserted into the two backrest portion through-holes 221 on two sides of the backrest portion 220 of the seat 20 through the lateral openings 521 on two sides of the backrest cushion 520 of the seat pad 50, and by applying a force to the U-shaped body portion 700 in a same direction as a recessed direction of a groove (not shown) in each of the backrest portion through-holes 221, the protrusions 720 are tightly engaged with the grooves, so that the U-shaped body portion 700 is located in front of the backrest portion 220 and above the seat portion 210. When the U-shaped body portion 700 needs to be removed, the protrusions 720 may be disengaged from the grooves by applying a force in a direction opposite to the recessed direction of the grooves. As described above, since the lateral openings 521 of the backrest cushion 520 and the backrest portion through-holes 221 of the backrest portion 220 are matched with each other in position and size and the backrest cushion 520 is limited by the two ends of the U-shaped body portion 700. This can ensure that the displacement of the backrest cushion 520 of the seat pad 50 in up-down and left-right directions is limited, so as to ensure that the seat pad 50 does not displace relative to the seat 20 and the protective member 7.

[0182] The crotch member 710 is integrally formed with the U-shaped body portion 700, and optionally extends downwardly from a middle of a front side of the U-shaped body portion 700 to be connected to the seat portion 210, such that the U-shaped body portion 700 is positioned above the seat portion 210. Optionally, the crotch member 710 is provided with a crotch latch 7101, and when the crotch member 710 needs to be mounted, the crotch latch 7101 of the crotch member 710 passes through the seat cushion through-hole 511 of the seat pad 50 and is pressed into the seat portion through-hole 211 in the seat portion 210, such that the crotch member 710 is locked onto the seat portion 210 and the U-shaped body portion 700 is positioned above the seat portion 210. When the crotch member 710 needs to be removed, the crotch member 710 may be disengaged from the seat portion 210 by simply pushing a flexible portion (not shown) of the crotch member 710 to release the crotch latch 7101. As described above, since the crotch latch 7101 of the crotch member 710 passes through the seat cushion through-hole 511 of the seat cushion 510 and is pressed into the seat portion through-hole 211 of the seat portion 210, the seat cushion 510 is limited by the crotch member 710 in the left-right and front-rear directions, so as to ensure that the seat pad 50 does not displace relative to the seat 20 and the protective member 70.

[0183] In addition, in order to further enhance the safety of the child's seating and prevent the child from inadvertently slipping out of a gap between the U-shaped body portion 700 and the seat 20, the protective member 70 is further provided with baffle plates 730 extending toward the seat portion 210 on both left and right sides of the U-shaped body portion 700, respectively. In this way, after the protective member 70 is mounted onto the seat 20, the protective member 70, together with the backrest cushion 520 and the seat cushion 510 of the seat pad 50, forms a relatively enclosed seating space, providing a relatively safe dining environment for the child.

[0184] As shown in FIG. 2, the tray 40 is mounted above the protective member 70 and supported by the protective member 70. The tray 40 includes a tray portion 410 and two protruding ribs 420 respectively extending rearwardly from left and right sides of the tray portion 410 and spaced apart from each other. The two protruding ribs 420 of the tray 40 are each provided with a tray latch 430, and the tray latches 430 are respectively disposed on lower surfaces of the protruding ribs 420 to be snap-fitted with the two side arms of the U-shaped body portion 700 of the protective member 70. When the tray 40 needs to be mounted, the two protruding ribs 420 of the tray 40 are placed on the two side arms of the U-shaped body portion 700 and snap-fitted with the two side arms of the U-shaped body portion 700 by the tray latches 430. This can ensure that, when the tray 40 is in use, the tray 40 is stably supported on the protective member 70, the two protruding ribs 420 are disposed above the two side arms of the U-shaped body portion 700, and the tray portion 410 is disposed across the U-shaped body portion 700. When the tray 40 needs to be detached, the tray 40 can be pulled up and removed from the seat 20 by simply bending the tray latch 430 of the tray 40 outwardly. The tray 40 may be manufactured, for example, from polypropylene via injection molding.

[0185] The design of the dining chair of the present disclosure fully accounts for the different needs of children during their growth, and provides three flexible use modes to accommodate children of different ages. [0186] First mode: a use mode for an infant, i.e., for young and small-sized children, the dining chair 10 is equipped with a complete set of accessories including the dining tray 40, the protective member 70, the back pad 60, the footrest apparatus 90, and a safety belt (not shown). The tray 40 is mounted above the protective member 70 by means of the tray latch 430, and the protective member 70 is connected to the backrest portion 220 of the seat 20 by means of the protrusions 720 at the two ends of the U-shaped body portion 700, and to the seat portion 210 of the seat 20 by means of the crotch latch 7101 of the crotch member 710, so as to ensure that a younger child has a relatively enclosed seating space in the seat 20. In addition, the soft seat pad 50 provides additional comfort for very young children, the back pad 60 reduces the gap between the backrest cushion 520 and the tray portion 410, so as to provide support for backs of the young and small-sized children to prevent the children from sitting unsteadily, and the seat belt ensures their safety in the seat 20. For young and large-sized children, the back pad 60 may then be detached from the backrest cushion 520 to allow the backrest cushion 520 to provide support for the back of the young and large-sized child. [0187] Second mode: a use mode for a growing child, i.e., the tray 40 and the back pad 60 may no longer be required as the child grows, but the seat pad 50, the protective member 70, the footrest apparatus 90, and the seat belt are still necessary. In this mode, the tray 40 and back pad 60 may be removed, while the seat pad 50, the protective member 70, and the footrest apparatus 90 are retained. For growing large-sized children, the seat pad 50 may also be removed. This adjustment allows the dining chair to adapt to the growth of the child, while its functionality and safety are maintained. [0188] Third mode: a use mode for older children, i.e. for the older children, the dining tray 40, the back pad 60, the protective member 70, the footrest apparatus 90 and the seat belt may no longer be required, but the seat pad 50 may be retained. For large-sized older children, the seat pad 50 may also be removed. In this mode, all of these accessories may be removed, and the dining chair 10 is converted into a regular seat.

[0189] As shown in FIGS. 1, 5 and 6, a width of the back pad 60 is less than or equal to that of the seat pad 50, so that the back pad 60 is properly placed on the seat pad 50 and is in close contact with a front surface of the backrest cushion 520. The back pad 60 includes a cushion body 610, which is disposed between the tray portion 410 and the backrest cushion 520 in the front-rear direction. By the provision of the back pad 60, a distance between the inner tray edge 4101 of the tray portion 410 and a front side of the back pad 60 is smaller than a distance between the inner tray edge 4101 of the tray portion 410 and the front surface of the backrest cushion 520, thereby reducing an interior space of the dining chair 10 in the front-rear direction. This improvement not only improves seating comfort for young children, but also significantly enhances safety during meals. Herein, the inner tray edge 4101 is an edge of the tray portion 410 close to a child seated in the seat 20.

[0190] It may be appreciated that the length of the back pad 60 is not specifically limited as long as it supports the back of the child. Optionally, a shape of the back pad 60 is matched with a shape of the backrest cushion 520 of the seat pad 50.

[0191] A thickness of the cushion body 610 of the back pad 60 may be 10 to 40 mm, optionally 25 mm.

[0192] A material of the cushion body 610 of the back pad 60 may be PU foam, and is the same as the material of the backrest cushion 520 and the seat cushion 510 as aforementioned.

[0193] Considering the seating comfort of the child, the cushion body 610 has a curved cross-section protruding towards the backrest cushion 520, to better surround the child's back in an ergonomic way.

[0194] The back pad 60 of the present disclosure may be provided with an outer covering 80, which includes a covering body 810 that encloses the cushion body 610 and a connecting member 820 detachably connected to the backrest cushion 520 of the seat pad 50, as shown in FIG. 4. The front surface of the back pad 60 mentioned above is a front surface of the outer covering 80.

[0195] The covering body 810 may have a pick-and-place opening 811 for placing the cushion body 610 into or taking the cushion body out of the outer covering 80, so that it is convenient to take the cushion body 610 out of the outer cover 80 through the pick-and-place opening 811 to clean the outer covering 80. The pick-and-place opening 811 may be disposed at a top portion, a back side, or a bottom portion of the outer covering 80. Optionally, the pick-and-place opening 811 is disposed at a position of the outer covering 80 adjacent to the top portion to prevent the cushion body 610 from falling out from the pick-and-place opening 811 of the outer covering 80 due to gravity. Meanwhile, the pick-and-place opening 811 is disposed on the back side of the outer covering 80 to prevent the child from taking the cushion body 610 out of the outer covering 80 through the pick-and-place opening 811. It may be appreciated that an area of the pick-and-place opening 811 is smaller than a cross-sectional area of the cushion body 610 to further prevent the cushion body 610 from falling out from the pick-and-place opening 811 of the outer covering 80.

[0196] In order to further prevent the cushion body 610 from accidentally falling out from the pick-and-place opening 811 of the covering body 810, the covering body 810 is further provided with a third connecting member 8111 and a fourth connecting member 8112 capable of being connected to each other on two sides of the pick-and-place opening 811. When in use, the third connecting member 8111 and the fourth connecting member 8112 may be connected to each other to prevent the cushion body 610 from falling out from the pick-and-place opening 811; when the cushion body 610 needs to be taken out, the third connector 8111 and the fourth connector 8112 may be separated from each other to allow the cushion body 610 to be taken out from the pick-and-place opening 811. The third connecting member 8111 and the fourth connecting member 8112 may be zippers, male and female buckles, a fastening hook and a hole, a hair side of Velcro and a hook side of Velcro, or a button and a button hole, etc. It may be appreciated that, for the sake of the aesthetics of the back pad 60, a shelter cover may also be provided over the pick-and-place opening 811 of the covering body 810 to cover the exposed third connecting member 8111 and the fourth connecting member 8112 and to further prevent children from inadvertently disconnecting the third connecting member 8111 and the fourth connecting member 8112 that are originally connected to each other.

[0197] In this embodiment, as shown in FIG. 4, the pick-and-place opening 811 is shaped like an envelope-type opening, i.e., portions of the covering body 810 on both sides of the pick-and-place opening 811 are overlapped with each other, with the third connecting member 8111, optionally a button, disposed on one side, and the fourth connecting member 8112, optionally a button hole, correspondingly disposed on the other side for the picking-up and placing of the cushion body 610 when needed.

[0198] As previously described, the outer covering 80 is provided with a connecting member 820 to be detachably connected to the backrest cushion 520 of the seat pad 50. The connecting member 820 of the present disclosure may be implemented in a variety of ways. Optional implementations of the connecting member are described in detail below in conjunction with the accompanying drawings of the specification.

[0199] FIG. 5 schematically illustrates an implementation of the back pad 60 provided with a strap member in the present disclosure. The strap member is the aforementioned connecting member 820. As shown in FIG. 5, two connecting ends of the strap member are opposite to each other and connected to the covering body 810, optionally connected to middle positions of two side edges of the covering body 810, respectively. The strap member and the covering body 810 are enclosed to form a closed loop for insertion of the backrest cushion 520 of the seat pad 50. An area formed by the closed loop is slightly larger than a cross-sectional area of the backrest cushion 520, i.e., a gap is provided between both of the strap member and the covering body 810, and the backrest cushion 520 to facilitate encasing the backrest cushion 520. It may be appreciated that the strap member may be a relatively wide piece of cloth.

[0200] The strap member may be elastic, such as an elastic strap. In this case, the area of the closed loop for the insertion of the backrest cushion 520 of the seat pad 50 formed by the strap member and the covering body 810 may be smaller than the cross-sectional area of the backrest cushion 520 of the seat pad 50, i.e., there is almost no gap between both of the strap member and the covering body 810, and the backrest cushion 520, and the backrest cushion 520 is encased with the aid of an elastic force of the strap member.

[0201] FIG. 6 schematically illustrates an implementation of the back pad 60 provided with two strap members in the present disclosure. The connecting member 820 is configured as two strap members. Each of the two strap members has a connecting end 821 and a free end 822, the two connecting ends 821 of the two strap members are connected to the covering body 810, and the two free ends 822 of the two strap members are connected to each other, such that the two strap members and the covering body 810 are enclosed to form a closed loop for insertion of the backrest cushion 520. As shown in FIG. 6, the two connecting ends 821 of the two strap members are provided opposite to each other and connected to the covering body 810, optionally, connected to middle positions of the two side edges of the covering body 810. The free ends 822 of the two strap members are respectively configured with a first connecting member 8221 and a second connecting member 8222 that are capable of being connected to each other. The first connecting member 8221 and the second connecting member 8222 may be zippers, male and female buckles, a fastening hook and a hole, a hair side of Velcro and a hook side of Velcro, or a button and a button hole, etc., as long as they are capable of enabling the two free ends 822 to be connected to each other.

[0202] As previously described, when the connecting member 820 is the strap member, it may be secured to the two sides of the outer covering 80 by means of sewing, optionally at or of the two sides in a length direction thereof.

[0203] It may be appreciated that, when the connecting member 820 is the strap member, a plurality of strap members may be provided on the outer covering 80.

[0204] FIG. 7 schematically illustrates an embodiment of the back pad 60 provided with an accommodating space on a top portion of the back pad 60 in the present disclosure. The connecting member 820 is configured to be enclosed with the covering body 810 to form the accommodating space, and is further provided with an opening 823 for the backrest cushion 520 to enter the accommodating space. The opening is located under the accommodating space to encase the top portion of the backrest cushion 520 of the seat pad 50. In the present disclosure, the connecting member 820, in addition to connecting the back pad 60 to the backrest cushion 520, may be further used as the shelter cover to cover the pick-and-place opening 811 of the outer covering 80, preventing children from taking the cushion body 610 out from the pick-and-place opening 811 of the outer covering 80.

[0205] It may be appreciated that the seat pad 50 of the present disclosure may also be provided with a connecting member. In order to strengthen the connection between the seat pad 50 and the seat 20, the connecting member may be provided on the seat cushion 510 and/or the backrest cushion 520 and/or the leg rest cushion 530 of the seat pad 50.

[0206] As previously described, the connecting member 820 is optionally connected to the outer cover of the seat pad 50, which allows the back pad 60 to be stably connected to the seat pad 50 due to the friction between the connecting member 820 and the outer cover, compared to the way in which the connecting member 820 is directly connected to the backrest cushion 520 and the seat pad 50 made of PU foam.

[0207] It should be noted that the back pad 60 of the present disclosure may also be detachably disposed on the backrest portion 220 of the seat 20 directly, to be adapted to a variety of dining chairs, i.e., the backrest cushion 520 of the seat pad 50 is not provided in this case. As in the embodiment shown in FIGS. 5 and 6, the closed loop formed by the enclosure of the strap member and the covering body 810 in this case may encase the backrest portion 220 of the seat 20. As in the embodiment shown in FIG. 7, the accommodating space formed by the enclosure of the connecting member 820 and the covering body 810 in this case may accommodate the top portion of the backrest portion 220, which may satisfy the use of the older and small-sized children in the above third mode.

[0208] The improved dining chair 10 of the present disclosure is intended to provide children of different sizes and ages with the adjustable interior space of the seat 20 to meet diverse needs of children as they grow. For younger or small-sized children, a care giver may add a backrest cushion 520 of the seat pad 50 in front of the backrest portion 520 of the seat 20 and place a back pad 60 between the backrest cushion 520 of the seat pad 50 and the tray portion 410, and connect the back pad 60 to the backrest cushion 520 of the seat pad 50 through the connecting member 820, to connect the back pad 60 to the backrest portion 220 of the seat 20 indirectly, thereby creating a compact and well-supported interior space between the backrest portion 220 and the tray portion 410 to ensure the comfort and safety of the child. Conversely, for older or large-sized children, the care giver may choose to remove the back pad 60 to expand the interior space of the dining chair 10, so that older children can also enjoy a spacious and comfortable seating experience. This improved design enhances the practicality of the dining chair 10, and at the same time can adapt to the needs of different stages as children grow.

[0209] In the actual use of the seat cushion, the cushion core of the seat pad and the outer cover encasing the cushion core are prone to be displaced relative to each other due to the movement of the infant seated therein, which may reduce the seating comfort of the infant. To address this problem, the present disclosure provides a seat cushion with a positioning structure designed to achieve a tight fit between the outer cover and the cushion core.

[0210] The seat pad 50 of the present disclosure includes a cushion core 500, an outer cover 800 encasing the cushion core 500, and a positioning structure 900 disposed between the cushion core 500 and the outer cover 800. The positioning structure 900 is configured to detachably connect the outer cover 800 to the cushion core 500 and to ensure that the outer cover 800 can be stably and tightly fitted with the cushion core 500, thereby enhancing the seating experience of the infant.

[0211] In this embodiment, the front, rear, left, right, up, and down directions are defined relative to orientations of the seat pad 50. Specifically, when an infant is seated in the seat pad 50, a surface for the infant to be seated on is regarded as a front surface (facing frontward) of the seat pad 50, and a surface opposite to the front surface is regarded as the back surface (facing backward) of the seat pad 50; a direction perpendicular to the front-rear direction on a horizontal plane is regarded as the left-right direction of the seat pad 50; and a direction perpendicular to the left-right direction and the front-rear direction is the up-down direction of the seat pad 50. Here, any one of the front-rear direction, the left-right direction, and the up-down direction may be regarded as a first axial direction, a direction intersected with the first axial direction is regarded as a second axial direction, and a direction intersected with both the first axial direction and the second axial direction is regarded as a third axial direction. Optionally, in embodiments shown in FIGS. 9 to 13, the first axial direction is the front-rear direction, the second axial direction is the up-down direction, and the third axial direction is the left-right direction.

[0212] Referring to FIGS. 9 and 10, perspective schematic views of a front surface and a back surface of a seat cushion according to the present disclosure are respectively shown.

[0213] The seat pad 50 of the present disclosure may provide a seating space for infants. The seat pad 50 includes a cushion core 500 and an outer cover 800. The cushion core 500 has a front surface 501 facing the seating space and a back surface 502 facing away from the seating space. The outer cover 800 is configured to encase the cushion core 500 and has a first cover body 830 facing the front surface 501 and a second cover body 840 facing the back surface 502. The outer cover 800 is substantially adapted to the cushion core 500 in shape and size.

[0214] Optionally, the outer cover 800 is constructed as a pocket-like structure with the first cover body 830 encasing the front surface 501 of the cushion core 500 and the second cover body 840 encasing the back surface 502 of the cushion core 500. Since the cushion core 500 has a certain thickness, the cushion core 500 further has a top portion, a bottom portion in the up-down direction and two side portions in the left-right direction. The top portion and the bottom portion of the cushion core 500 abut against the top portion and bottom portion of the outer cover 800, respectively, thereby limiting the displacement of the cushion core 500 in the up-down direction of the outer cover 800. The two side portions of the cushion core 500 are respectively in contact with the two side portions 831 of the outer cover 800, thereby limiting the displacement of the cushion core 500 in the left-right direction of the outer cover 800.

[0215] In practice, since the first cover body 830 is in direct contact with the infant, in order to avoid the displacement of the first cover body 830 relative to the front surface 501 of the cushion core 500 due to the movement of the infant seated in the seat pad 50, a positioning structure 900 is provided in the present disclosure. The positioning structure 900 is disposed between the first cover body 830 and the cushion core 500, and is intended to ensure that the first cover body 830 can stably and tightly encase the front surface 501 of the cushion core 500, thereby effectively preventing the displacement between the outer cover 800 and the cushion core 500 when an infant seated in the seat pad 50 moves.

[0216] In the embodiment shown in FIG. 9, the cushion core 500 may include a seat cushion 510, a backrest cushion 520, and a leg rest cushion 530. As described above, the backrest cushion 520 extends upwardly from the rear end of the seat cushion 510, the leg rest cushion 530 extends downwardly from the front end of the seat cushion 510, and thus the cushion core 500 is configured in a substantially Z-shape, but the shape of the cushion core 500 is not limited thereto. The cushion core 500 may also include only the seat cushion 510 and the backrest cushion 520 extending upwardly from the rear end of the seat cushion 510. The seat pad 50 may be configured in a substantially L-shape. Accordingly, the outer cover 800 may include a seat cover 801 encasing the seat cushion 510, a backrest cover 802 encasing the backrest cushion 520, and a leg rest cover 803 encasing the leg rest cushion 530. The backrest cover 802, the seat cover 801, and the leg rest cover 803 are connected in sequence. For a cushion core 500 with only a seat cushion 510 and a backrest cushion 520, the outer cover 800 may include a seat cover 801 encasing the seat cushion 510 and a backrest cover 802 encasing the backrest cushion 520. Optionally, the positioning structure 900 and the first cover body 830 may be connected at a junction between the seat cover 801 and the backrest cover 802, and correspondingly, the positioning structure 900 and the cushion core 500 may be connected at a junction between the seat cushion 510 and the backrest cushion 520. Optionally, in addition to the above positioning structure 900, a further positioning structure (not shown) may be provided in the present disclosure, and the further positioning structure may be also disposed between the cushion core 500 and the first cover body 830, allowing the cushion core 500 to be detachably connected to the first cover body 830, as well as avoiding the relative displacement between the outer cover 800 and the front surface of the cushion core 500 due to the movement of the infant. The further positioning structure is connected to the first cover body 830 at a junction between the seat cover 801 and the leg rest cover 803, and the further positioning structure is connected to the cushion core 500 at a junction between the seat cushion 520 and the leg rest cushion 530. In the present disclosure, the further positioning structure is structurally the same as the positioning structure 900 and differs from the positioning structure 900 only in connection positions with the cushion core 500 and the first cover body 830.

[0217] As described above, the seat cushion 510 is further provided with a seat cushion through-hole 511, to allow the crotch latch 7101 to pass through the seat pad 50 for connection with the seat section through-hole 211 in the seat section 210. Accordingly, the seat cover 801 of the outer cover 800 is also provided with a seat cover through-hole 834 and the cushion core 500 is also provided with a cushion core through-hole (not shown), and the seat cover through-hole 834 and the cushion core through-hole form the seat cushion through-hole 511. That is, the crotch latch 7101 passes through the seat cover through-hole 834 and the cushion core through-hole to be connected to the seat portion through-hole 211 in the seat portion 210. When the crotch member 70 passes through the seat cushion through-hole 511 and the crotch latch 7101 is pressed into the seat portion through-hole 211, the outer cover 800 and the cushion core 500 of the seat pad 50 are limited by the crotch member 70 in the front-rear direction as well as in the left-right direction, further preventing the displacement between the first cover body 830 and the front surface 501 of the cushion core 500.

[0218] In order to facilitate the replacement or the cleaning of the outer cover 800, an opening 844 is provided on the outer cover 800 in the present disclosure. The opening 844 may be disposed on at least one of the two side portions 831 of the outer cover 800, or be disposed on the second cover body 840. Optionally, the opening 844 may be provided at a position of the second cover body 840 close to one of the side portions 831. Optionally, the opening 844 may be configured to extend from the backrest cover 802 of the second cover body 840 to the seat cover 801, and optionally, the opening 844 may be configured to extend from the backrest cover 802 of the second cover body 840 to the leg rest cover 803. For an outer cover 800 having only the seat cover 801 and the backrest cover 802, the opening may be configured to extend from the backrest cover 802 of the second cover body 840 to the seat cover 801. Since the opening 844 is longer, a user is allowed to easily take or place the cushion core 500 out of or into the outer cover 800, and it is convenient to replace or clean the outer cover 800. Furthermore, since the opening 844 extends through a junction of the positioning structure 900 with the cushion core 500 and the first cover body 830, it further facilitates for the user to connect the positioning structure 900 to the first cover body 830 and the cushion core 500 through the opening 844.

[0219] In order to prevent the cushion core 500 from accidentally falling off from the opening 844, two side edges of opening 844 are respectively provided with detachable connection structures in the present disclosure, e.g., zippers 845, but the present disclosure is not limited thereto, which may also be mutually matching hook-and-loop fasteners, male and female buckles, or lacing straps, etc., as long as it is possible to close the opening 844 when the seat pad 50 is in use.

[0220] In order to enhance the overall aesthetics and safety of the seat pad 50, the seat pad 50 of the present disclosure is further provided with a covering portion 846 for covering the detachable connection structures. In this embodiment, the covering portion 846 extends in a direction of the opening 844 and covers the opening 844. Optionally, a material of the covering portion 846 may be the same as that of the outer cover 800. The covering portion 846 not only enhances the aesthetics of the seat pad 50, but also effectively prevents a risk of the cushion core 500 falling off from the outer cover 800 due to accidental pulling by an infant during use. Optionally, detachable connection structures, e.g., zippers, hook-and-loop fasteners, male and female buckles, or lacing straps etc., may also be disposed between the covering portion 846 and the outer cover 800.

[0221] In the following, the positioning structure 900 of the present disclosure will be described in detail with reference to FIGS. 11A to 13B.

[0222] FIGS. 11A to 11B are perspective views schematically illustrating an outer cover 800 with the cushion core 500 removed in FIG. 10, in which the outer cover 800 is provided with the positioning structure 900. The positioning structure 900 includes a positioning member 910 and a positioning hole 920. The positioning member 910 is connected to the first cover body 830, optionally, connected to an inner side surface of the first cover body 830 in contact with the front surface 501 of the cushion core 500. The positioning hole 920 may penetrate the front surface 501 and the back face 502 of the cushion core 500 in the first axial direction (i.e., the front-rear direction), and the positioning hole 920 is a through-hole that penetrates the cushion core 500. The positioning member 910 is disposed in correspondence with the positioning hole 920, such that the positioning member 910 passes through the positioning hole 920 and is detachably connected to the back surface 502 of the cushion core 500, thereby allowing the first cover body 830 to be tightly fitted with the front surface 501 of the cushion core 500.

[0223] In other embodiments, the positioning structure 900 may also be configured to be detachably connected to the second cover body 840 of the outer cover 800 after passing through the positioning hole 920, thereby allowing for a tight fit of the first cover body 830 with the front surface 501 of the cushion core 500. Here, the positioning member 910, after passing through the positioning hole 920, may be connected to the second cover body 840 by the detachable connection structures, such as hook-and-loop fasteners attached to each other, male and female buckles buckled to each other, and lacing straps connected to each other, etc.

[0224] In addition, the positioning structure 900 is not limited to the above manner of engagement between the positioning member 910 and the positioning hole 920, but may also be a detachable connection structure, such as hook-and-loop fasteners attached to each other, male and female buckles buckled to each other, and lacing straps connected to each other, etc., disposed between the first cover body 830 of the outer cover 800 and the front surface 501 of the cushion core 500, such that the first cover body 830 is allowed to be detachably connected to the front surface 501 of the cushion core 500 directly, thereby realizing a tight fit between the first cover body 830 and the front surface 501 of the cushion core 500.

[0225] As shown in FIGS. 11A and 11B, the positioning member 910 may include a body portion 911 and a positioning portion 912 that are connected to each other. When the positioning structure 900 is connected to the outer cover 800 and the cushion core 500, the body portion 911 is accommodated in the positioning hole 920 and is connected to the first cover body 830; and the positioning portion 912 is exposed from the back surface 502 of the cushion core 500 and is detachably connected to the back surface 502. Optionally, the body portion 911 extends in the first axial direction in this case, and the positioning portion 912 extends on a plane intersected with the first axial direction and is detachably connected to the back surface 502. In order to realize the detachable connection of the positioning portion 912 to the back surface 502, the positioning portion 912 necessarily has a portion extending beyond the positioning hole 920 on the plane intersected with the first axial direction, to be detachably connected to the back surface 502 through the portion.

[0226] In this embodiment, the body portion 911 has a first connecting end 9111 and a second connecting end 9112. The first connecting end 9111 may be fixedly or detachably connected to the first cover body 830, and optionally, may be sewn to the first cover body 830. Optionally, the first connecting end 9111 is connected to a junction between the seat cover 801 and the backrest cover 802 of the first cover body 830. It can be understood that the first connecting end 9111 of the body portion 911 may be flexibly disposed according to the actual needs and is not limited to the position described above. The second connecting end 9112 may be movably connected or detachably connected to the positioning portion 912, that is, the body portion 911 may be movably connected or detachably connected to the positioning portion 912. When the second connecting end 9112 is movably connected to the positioning portion 912, the positioning portion 912 is movable relative to the body portion 911 such that the positioning portion 912 may pass through the positioning hole 920 along the first axial direction together with the body portion 911, and the positioning portion 912, after passing through the positioning hole 920, may be detachably connected to the back surface 502 on the plane intersected with the first axial direction. Optionally, the body portion 911 is pivotally connected to the positioning portion 912. When the second connecting end 9112 is detachably connected to the positioning portion 912, the body portion 911 may be detachably connected to the positioning portion 912 extending on the plane intersected with the first axial direction after passing through the positioning hole 920 in the first axial direction.

[0227] Optionally, when the seat pad 50 is further provided with a further positioning structure, the first connecting end 9111 of the body portion 911 of the further positioning structure may also be connected to a junction between the seat cover 801 of the first cover body 830 and the leg rest cover 803. The second connecting end 9112 of the further positioning structure as the positioning structure 900 may also be movably or detachably connected to its corresponding positioning portion 912. The further positioning structure may have the same structure and configuration as the positioning structure 900, that is, the present disclosure may be provided with two positioning structures 900.

[0228] In this embodiment, the positioning portion 912 may be movably connected to the body portion 911. Optionally, the body portion 911 is pivotally connected to the positioning portion 912. When the positioning member 910 penetrates the positioning hole 920 in the first axial direction, the positioning portion 912 may be pivoted to be at least partially superimposed with and attached to the body portion 911. Optionally, the positioning portion 912 and the body portion 911 are parallel to each other and extend in the first axial direction, at this time, the positioning portion 912 is in a first position. The positioning portion 912 continues to extend through the positioning holes 920 and is then detachably connected to the back surface 502, and the body portion 911 is still accommodated in the positioning hole 920 and is maintained in the first axial direction, while the positioning portion 912 extends through the positioning hole 920 and beyond the positioning hole 920 relative to the positioning holes 920 on the plane intersected with the first axial direction, so that the positioning portion 912 is detachably connected to the back surface 502 of the cushion core 500, and an extension direction of the positioning portion 912 is intersected with an extension direction of the body portion 911, at this time, the positioning portion 912 is in a second position. In other words, the positioning portion 912 is transferred from a state in which the positioning portion 912 is parallel to the body portion 911 to a state in which the positioning portion 912 is intersected with the body portion 911 from the first position to the second position.

[0229] As described above, the positioning portion 912 is exposed from the back surface 502 of the cushion core 500 and is detachably connected to the back surface 502. Optionally, the positioning portion 912 may abut forwardly against the back surface 502 of the cushion core 500 to be detachably connected to the back surface 502; or by the detachable connection structures, such as hook-and-loop fasteners attached to each other, male and female buckles buckled to each other, and lacing straps connected to each other, etc., disposed between the positioning portion 912 and the back surface 502 of the cushion core 500, the positioning portion 912 is detachably connected to the back surface 502, thereby realizing the attachment between the first cover body 830 of the outer cover 800 and the front surface 501 of the cushion core 500.

[0230] Hereinafter, an implementation of the positioning portion 912 and the connection relationship between the positioning portion 912 and the body portion 911 in the case where the positioning portion 912 abuts against the back surface 502 of the cushion core 500 are described in detail.

[0231] It should be noted that in the case where the positioning portion 912 abuts against the back surface 502, on the plane intersected with the first axial direction, the positioning portion 912 may respectively extend beyond the positioning hole 920 in at least two different directions relative to the positioning hole 920 to abut against the back surface 502, thereby ensuring that the positioning portion 912 cannot easily fall out of the positioning hole 920. Optionally, a hardness of the positioning portion 912 needs to be greater than that of the body portion 911 such that the positioning portion 912 cannot easily fall out of the positioning hole 920. Optionally, in the second axial direction intersected with the first axial direction, the positioning portion 912 extends beyond the positioning hole 920 in two opposite directions of the second axial direction to abut against the back surface 502. Optionally, the second axial direction is the up-down direction.

[0232] It can be understood that after the positioning portion 912 passes through the positioning hole 920 and abuts against the back surface 502, on the plane perpendicular to the first axial direction, a cross-section of the body portion 911 may be located in or coincide with a projection plane of the positioning hole 920, to smoothly pass through the positioning hole 920. Meanwhile, on a plane perpendicular to the second axial direction, a cross-section of the positioning portion 912 may be located in or coincide with a projection plane of the positioning holes 920 on the plane perpendicular to the first axial direction, so that the positioning portion 912 can smoothly pass through the positioning holes 920. Optionally, in the first axial direction, a length of the body portion 911 may be equal to or slightly smaller than a depth of the positioning hole 920, so that the positioning portion 912 can stably abut against the back surface of the cushion core 500.

[0233] In other embodiments, the positioning portion 912 is detachably connected to the back surface 502. That is, after the positioning portion 912 passes through the positioning holes 920 and is exposed from the back surface 502, the positioning portion 912 and the back surface 502 may be detachably connected to each other by detachable connection structures, such as hook-and-loop fasteners attached to each other, male and female buckles buckled to each other, and lacing straps connected to each other, etc., and the positioning portion 912 needs only extend beyond the positioning hole 920 in at least one direction relative to the positioning holes 920 to be detachably connected to the back surface 502.

[0234] Hereinafter, an implementation in which the hardness of the positioning portion 912 is greater than that of the body portion 911 in the case where the positioning portion 912 abuts against the back surface 502 of the cushion core 500 will be described in detail with reference to FIG. 11B.

[0235] In an implementation, the body portion 911 may include only a first strap body 914, the positioning portion 912 may include a second strap body 915 and the hard plate 913, and both of the first strap body 914 and the second strap body 915 have a certain degree of flexibility. Since the positioning portion 912 includes the hard plate 913 in addition to the second strap body 915, the hardness of the positioning portion 912 is greater than the hardness of the body portion 911. Optionally, the hard plate 913 may be made of PP or PE, or the like. Optionally, the first strap body 914 and the second strap body 915 are made of a same material. Optionally, the first strap body 914 and the second strap body 915 are made of the same webbing or are respectively made by two separate webbings sewn and connected.

[0236] The following will clearly describe how the first strap body 914 and the second strap body 915 encasing the hard plate 913 are formed when the first strap body 914 and the second strap body 915 are made of the same webbing. A first end of the webbing is connected to the first cover body 830, and a second end of the webbing encases the entire hard plate 913 in a length direction of the hard plate 913, and is connected to a middle of the webbing. In this way, the positioning portion 912 made by a portion of the webbing and the hard plate 913 is pivoted at the middle of the webbing relative to the body portion 911 made of the other portion of the webbing, so that the positioning portion 912 is movably connected to the body portion 911. When the first strap body 914 and the second strap body 915 are made by two separate webbings, a first end of the webbing made into the first strap body 914 is connected to the first cover body 830, and two ends of the webbing made into the second strap body 915 are wrapped around the entire hard plate 913 in the length direction of the hard plate 913 and are connected to each other in an end-to-end manner, in order to be connected to a second end of the webbing made into the first strap body 914. Similarly, the positioning portion 912 made by the webbing made into the second strap body 915 and the hard plate 913 may be pivoted relative to the body portion 911 made from the webbing made into the first strap body 914 at a position where the webbing made into the second strap body 915 is connected in the end-to-end manner, to allow the positioning portion 912 to be movably connected to the body portion 911.

[0237] In an implementation, the body portion 911 may include only the first strap body 914, and the positioning portion 912 may include only the hard plate 913. The first strap body 914 has a certain degree of flexibility, and the hardness of the hard plate 913 is greater than that of the first strap body 914. Optionally, the hard plate 913 may be made of PP or PE, or the like. The hard plate 913 may be pivoted relative to the first strap body 914 at a junction between the hard plate 913 and the first strap body 914, i.e. the positioning portion 912 is pivotally connected to the body portion 911.

[0238] In an implementation, the body portion 911 may include only the first strap body 914, the positioning portion 912 may include only the second strap body 915, and the first strap body 914 and the second strap body 915 may be made of the same material. The first strap body 914 is unfolded and the second strap body 915 is folded at least once, such that a thickness of the second strap body 915 is greater than a thickness of the first strap body 914, and thus a hardness of the second strap body 915 is greater than a hardness of the first strap body 914. Optionally, the first strap body 914 and the second strap body 915 are made of the same webbing or are respectively made by two separate webbings sewn and connected. Similarly, the first strap body 914 and the second strap body 915 may be pivoted relative to each other at a junction therebetween.

[0239] It should be noted that the aforementioned positioning portion 912, regardless of the implementations, has a greater hardness than the hardness of the body portion 911, and this difference in hardness allows the positioning portion 912 to effectively resist deformation when passing through the positioning hole 920, thereby ensuring a stable and smooth passage through the positioning hole 920 and a stable abutment against the back surface 502 of the cushion core 500.

[0240] As shown in FIG. 11B, the positioning portion 912 is provided with a connection portion C connected to the second connecting end 9112 of the body portion 911, and the body portion 911 is movably connected to the positioning portion 912 at the connection portion C. When the positioning portion 912 extends in the second axial direction, in the second axial direction, the connection portion C may be disposed on a centerline of the positioning portion 912 or on the positioning portion 912 away from the centerline, i.e., the connection portion C divides the positioning portion 912 into a first positioning portion 9121 and a second positioning portion 9122. Lengths of the first positioning portion 9121 and the second positioning portion 9122 in the second axial direction may be the same or different. Optionally, the length of one of the first positioning portion 9121 and the second positioning portion 9122 is greater than that of the other. Optionally, the length L1 of the first positioning portion 9121 is less than the length L2 of the second positioning portion 9122, facilitating the penetration of the positioning portion 912 into and out of the positioning hole 920. The design of the first positioning portion 9121 and the second positioning portion 9122 being different in length in the second axial direction facilitates easy penetration of the positioning portion 912 and withdrawal of the positioning portion 912 from the positioning holes 920.

[0241] When the body portion 911 includes only the first strap body 914 and the positioning portion 912 includes the second strap body 915 and the hard plate 913, a portion where the second strap body 915 is connected to the first strap body 914 is the connection portion C of the positioning portion 912. In order to ensure that the hard plate 913 can be more stably connected to the first strap body 914, the connection portion C is provided with a sewing line, and the sewing line passes from an outer surface of the second strap body 915 through the hard plate 913 to be connected to the first strap body 914. The sewing line is provided at a middle of the positioning portion 912 in a length-extending direction and is spaced apart from a centerline of the positioning portion 912 in the length-extending direction.

[0242] When the body portion 911 includes only the first strap body 914 and the positioning portion 912 includes only the hard plate 913, a portion where the hard plate 913 is connected to the first strap body 914 is the connecting portion C of the positioning portion 912, and in this case, the hard plate 913 and the first strap body 914 may be connected by the sewing line. The sewing line is provided at a middle of the positioning portion 912 in the length-extending direction and is spaced apart from the centerline of the positioning portion 912 in the length-extending direction.

[0243] When the body portion 911 includes only the first strap body 914 and the positioning portion 912 includes only the second strap body 915, the portion where the first strap body 914 is connected to the second strap body 915 is the connection portion C of the positioning portion 912, and at this time, the connection portion C may be provided with a sewing line, the sewing line passes through the folded second strap body 915 to be connected to the first strap body 914. The sewing line is provided at a middle of the positioning portion 912 in the length-extending direction and is spaced apart from the centerline of the positioning portion 912 in the length-extending direction.

[0244] In the present disclosure, the positioning structures 900 may include two positioning members 910 and two positioning holes 920. The two positioning members 910 are each connected to the first cover body 830 and spaced apart. The two positioning holes 920 extend through the front surface 501 and the back surface 502 of the cushion core 500 in the first axial direction, respectively and are spaced apart. In this embodiment, each positioning member 910 includes the body portion 911 and the positioning portion 912. The body portion 911 is accommodated in the respective positioning holes 920 and connected to the first cover body 830. The positioning portion 912 is movably or detachably connected to the body portion 911 and is exposed from the back surface 502 of the cushion core 500. The two positioning portions 912 pass through the positioning holes 920 from the front surface 501 of the cushion core 500 in one-to-one correspondence, and are exposed from the back surface 502 of the cushion core 500, and then continue to extend toward each other and are connected to each other. The two positioning portions 912 may be connected to each other by means of hook-and-loop fasteners, male and female buckles, or lacing straps etc.

[0245] FIG. 12 is a perspective view schematically illustrating that the outer cover 800 encasing the cushion core 500 is opened and exposes a positioning hole 920 of the cushion core 500, in which the positioning hole 920 extends through the cushion core 500. The positioning hole 920 may be configured as a through-hole extending through the front surface 501 and the back face 502 of the cushion core 500 in the first axial direction (front-rear direction) of the seat pad 50, and the through-hole may be a through-slot. In this embodiment, when the positioning portion 912 passes through the positioning hole 920 and abuts against the back surface 502 of the cushion core 500, a length of the body portion 911 (i.e., a distance between the first connecting end 9111 and the second connecting end 9112) is equal to a thickness of the cushion core 500 such that the positioning portion 912 abuts against the positioning hole 920. Since the positioning portion 912 abuts tightly against the positioning hole 920, the first cover body 830 of the outer cover 800 and the front surface 501 of the cushion core 500 may be more closely attached to each other.

[0246] In the present disclosure, the positioning hole 920 may be disposed at a junction between the seat cushion 510 and the backrest cushion 520. In other embodiments, the positioning hole 920 may also be disposed at a position above an adjacent junction of the cushion core 500 and extend through the cushion core 500 in a second axial direction (optionally, an up-down direction) intersected with the first axial direction. In addition, the positioning hole 920 may be configured to extend through the cushion core 500 at any position as long as it can be connected to the corresponding positioning member 910 as desired.

[0247] FIGS. 13A to 13B schematically illustrate a state in which the positioning member 910 is passing through the positioning hole 920 and a state in which the positioning member 910 abuts against the back surface 502 of the cushion core 500 after passing through the positioning hole 920, respectively.

[0248] The positioning portion 912 may be movably connected to the body portion 911. As shown in FIG. 13A, both of the positioning portion 912 and the body portion 911 are configured to extend toward the positioning hole 920 in the first axial direction. The second positioning portion 912 of the positioning portion 912 first passes through the positioning hole 920, and the first positioning portion 9121 of the positioning portion 912 and the body portion 911 are partially superimposed, at this time the positioning portion 912 and the body portion 911 are in a state of being parallel to each other. As shown in FIG. 13B, after the second positioning portion 9122 drives the first positioning portion 9121 out of the positioning hole 920, the second positioning portion 9122 extends upwardly beyond the positioning hole 920 relative to the positioning hole 920 in the second axis direction to abut against the back surface 502. The first positioning portion 9121 extends downwardly beyond the positioning hole 920 relative to the positioning hole 920 in the second axis direction to abut against the back surface 502 920, thereby enabling the positioning portion 912 to abut against the back surface 502 of the cushion core 500, at this time, the positioning portion 912 and the body portion 911 are in a state of intersection with each other.

[0249] As described above, since a length of the body portion 911 in the first axial direction is equal to or slightly smaller than a depth of the positioning hole 920 in the first axial direction, the positioning portion 912 is capable of abutting tightly against the back surface 502 of the cushion core 500. In addition, in practical use, due to the gravity of the infant seated on the seat pad 50 itself, the stability of the abutment is further enhanced, and the risk of accidental dislodgement of the positioning portion 912 from the positioning hole 920 is reduced, thus realizing that the first cover body 830 of the outer cover 800 is tightly attached to the front surface 501 of the cushion core 500.

[0250] When the outer cover 800 is to be removed from the cushion core 500, the positioning portion 9121 of the positioning portion 912 is first pulled downwardly in the first axial direction to enter the positioning hole 920 and then the second positioning portion 9122 is pulled downwardly in the first axial direction to enter the positioning hole 920, until they are completely withdraw from the positioning hole 920, such that the positioning member 910 is disengaged from the positioning hole 920, thereby realizing the separation of the outer cover 800 from the cushion core 500 so as to take the outer cover 800 out.

[0251] Although the present disclosure is described herein by taking preferred embodiments as examples, those skilled in the art will be able to make further possible modifications and changes without departing from the scope of the present disclosure.