CHAIR FOR REDUCING LOAD ON BUTTOCKS AND WAIST

Abstract

A chair for reducing a load on the buttocks and the waist, and, to a chair (100) includes a seat (110) and a backrest (130) and further comprising a spacer (120) protruding upward from the rear end of the seat (110), wherein the bottom of the backrest (130) is provided on the top of the spacer (120) so as to be tiltable rearward, and the point at which the angle of the backrest (130) is adjusted with respect to the spacer (120) corresponds to a point (P) at which the lumbar of a user body sitting on the seat (110) is curved inward.

Claims

1. A chair for reducing a load on the buttocks and the waist, a chair (100) comprising a seat (110) and a backrest (130) and further comprising a spacer (120) protruding upward from the rear end of the seat (110), wherein the bottom of the backrest (130) is provided on the top of the spacer (120) so as to be tiltable rearward, and a point at which the angle of the backrest (130) is adjusted with respect to the spacer (120) corresponds to a point (P) at which the lumbar of a user body sitting on the seat (110) is curved inward.

2. The chair for reducing the load on the buttocks and the waist of claim 1, further comprising: a rotation shaft (131) formed on the bottom of the backrest (130), wherein the spacer (120) is rotatably provided on the rotation shaft (131).

3. The chair for reducing the load on the buttocks and the waist of claim 1, further comprising: a height adjustment member for adjusting a height (h1) of the spacer (120) from the seat (110).

4. The chair for reducing the load on the buttocks and the waist of claim 1, further comprising: a tilting member for adjusting an angle at which the backrest (130) is tilted with respect to the spacer (120).

5. The chair for reducing the load on the buttocks and the waist of claim 1, further comprising: a height adjustment member for adjusting a height (h1) of the spacer (120) from the seat (110).

6. The chair for reducing the load on the buttocks and the waist of claim 5, wherein the height adjustment member comprises a height adjustment hole (121) formed in the spacer (120) in multiple stages in a height direction, a fastening hole (111) formed in the seat (110) to correspond to the height adjustment hole (121), and fastening bolt (171) for screwing the height adjustment hole (121) and the fastening hole (111).

7. The chair for reducing the load on the buttocks and the waist of claim 2, wherein a shaft hole (121) is formed in the spacer (120), and the rotation shaft (131) is rotatably provided in the shaft hole (121) so that the backrest (130) is rotatable on the spacer (120).

8. The chair for reducing the load on the buttocks and the waist of claim 1, wherein the spacer (120) is formed in a shape of two or more poles.

Description

DESCRIPTION OF DRAWINGS

[0031] FIG. 1 is a schematic diagram of a configuration viewed from the side of a chair 100 for reducing the load of the buttocks and the waist according to an embodiment of the present invention and an operation diagram illustrating a tilting operation of a backrest 130.

[0032] FIG. 2 is a schematic diagram of a configuration of main parts viewed from the front side in the chair 100 for reducing the load of the buttocks and the waist according to an embodiment of the present invention.

[0033] FIG. 3 is an exemplary diagram of a use state in which a user uses the chair 100 for reducing the load of the buttocks and the waist according to an embodiment of the present invention.

[0034] FIG. 4 is a schematic diagram of a configuration of main parts viewed from the front side in the chair 100 for reducing the load of the buttocks and the waist according to a modified embodiment of the present invention.

[0035] FIG. 5 is a schematic diagram of a configuration viewed from the side in the chair 100 for reducing the load of the buttocks and the waist according to a modified embodiment of the present invention illustrated in FIG. 4.

MODES FOR THE INVENTION

[0036] Hereinafter, a preferred embodiment of a chair for reducing a load of the buttocks and the waist of the present invention will be described in detail with reference to the accompanying drawings.

[0037] A chair 100 for reducing a load on the buttocks and the waist according to an embodiment of the present invention is configured to include a seat 110 on which a user sits and a backrest 130 and to further include a spacer 120 formed to protrude upward from the rear end of the seat 110. The bottom of the backrest 130 is provided on the top of the spacer 120 so as to be tiltable rearward, and a point at which the angle of the backrest 130 is adjusted with respect to the spacer 120, that is, specifically a rotation shaft 131 corresponds to a point P at which the lumbar of a user body sitting on the seat 110 is curved inward.

[0038] According to this, since the point at which the angle of the backrest 130 is adjusted with respect to the spacer 120, that is, the rotation shaft 131 corresponds to a point P1 at which the lumbar of the user is curved inward (toward the body), both the back and the waist of the user may be supported to reduce or completely remove the load applied to the buttocks and the waist when sitting.

[0039] Particularly, the backrest 130 is configured so that the angel is not adjusted at the seat 110 (a tailbone part of a sitter), but the angle is adjusted at a part higher than the seat 110 by a preset height h1, that is, the top of the spacer 120, accurately the lumbar to significantly remove the load applied to the buttocks and the waist, thereby leaning on the backrest while supporting the waist.

[0040] Third, in the case where the chair 100 of the present invention is implemented as chairs in automobiles or trains, when sitting for a long time due to a long moving time, since there is no load applied to the waist, it is more effective for moving in a sitting state for a long time.

[0041] Meanwhile, the chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention may also be configured to further include a neck support N1 provided on the top of the backrest 130, and as such, in the case of the neck support N1, the effect may be greater exhibited.

[0042] The angle (tilting angle) at which the backrest 130 is tilted is indicated by an angle φ.

[0043] As illustrated in FIG. 1, in the chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention, the spacer 120 is configured in a shape of two or more poles.

[0044] Meanwhile, in the chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention, although the spacer 120 is described as being formed in the shape of two poles as an example, it is not limited thereto, and for example, even if the spacer 120 is configured in a plate shape, of course, it belongs to the technical scope of the present invention.

[0045] In addition, according to the embodiment, the lower side may be formed in a plate shape and the upper end may be formed in a pole shape (see FIG. 4).

[0046] Accordingly, as long as the spacer 120 may adjust the angle of the backrest from the upper side by the present height h1 from the seat 110 regardless of its shape, it belongs to the technical scope of the present invention.

[0047] The spacer 120 may be formed integrally with the seat 110 or may be provided upright on the seat 110 by a fastening member as a separate component.

[0048] The spacer 120 is characterized to be formed at a height h1 of 15 to 25 cm from the sheet 110.

[0049] In addition, the backrest 130 is characterized to be formed in a flat shape or a curved shape.

[0050] In the chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention, a configuration in which the backrest 130 is supported by the spacer 120 and rotates will be described in detail.

[0051] In the chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention, the rotation shaft 131 formed on the bottom of the backrest 130 is further included, and the spacer 120 is characterized to be provided rotatably on the rotation shaft 131.

[0052] In addition, a shaft hole 121 is formed in the spacer 120, and the rotation shaft 131 is rotatably provided in the shaft hole 121, so that the backrest 130 is rotatable on the spacer 120.

[0053] Furthermore, a bearing 141 may also be provided in the shaft hole 121 to facilitate rotation.

[0054] The chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention is configured to further include a tilting member for adjusting an angle (tilting angle) at which the backrest 130 is tilted with respect to the spacer 120.

[0055] The tilting member itself may be implemented as various tilting members known before the filing of the present invention.

[0056] For example, the tilting member may be configured to include a driven gear 151 axially provided on the rotary shaft 131, a driving gear 152 engaging with the driven gear 151, and driving sources 161 and 162 axially provided on the driving gear 152 to drive the driving gear 152.

[0057] In addition, the drive source 161 may also be configured as a motor box 163 that is axially provided on the driving gear 152 to electrically turn the driving gear 152 (see FIG. 4), or the driving source 161 may also be configured as a lever 161 that is axially provided on the driving gear 152 to forcibly turn the driving gear 152 manually (see FIG. 2), and of course, any case belongs to the technical scope of the present invention.

[0058] The chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention is characterized to adopt the technology for adjusting the height of the spacer 120 according to a seated height of the sitter (user).

[0059] That is, the chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention is configured to further include a height adjustment member for adjusting the height h1 of the spacer 120 from the seat 110.

[0060] For example, the height adjustment member is configured to include a height adjustment hole 121 formed in the spacer 120 in multiple stages (three stages in the illustrated embodiment) in a height direction, a fastening hole 111 formed in the seat 110 to correspond to the height adjustment hole 121, and a fastening bolt 171 for screwing the height adjustment hole 121 and the fastening hole 111 together.

[0061] Meanwhile, in the chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention, it has been described that the height adjustment member is configured by the height adjustment hole 121, the fastening hole 111, and the fastening bolt 171, but it is not limited thereto, and for example, as long as the height adjustment member is a technology of adjusting the height of the spacer 120, of course, any case belongs to the technical scope of the present invention.

[0062] Next, the effect of the chair 100 for reducing the load on the buttocks and the waist according to the embodiment of the present invention having the configuration as described above will be described.

[0063] As illustrated in FIG. 3, when lying obliquely so that the waist side of the user is located on the rotation shaft 131, which is an approximately bent point and the back of the user is located at the backrest 130, the user feels very comfortable and easy as if lying in bed.

[0064] As described above, the preferred embodiment according to the present invention have been described, and it is apparent to those skilled in the art that the present invention may be implemented in other specific forms without changing the technical spirit or essential features in addition to the above-described embodiments. Therefore, it should be understood that the above-described embodiments are not restrictive but illustrative.

[0065] The scope of the present invention is represented by claims to be described below rather than the detailed description, and it is to be interpreted that the meaning and scope of the claims and all the changes or modified forms derived from the equivalents thereof come within the scope of the present invention.