Swivel Fitting of Seating Furniture for Adjusting a Foot Part and Seating Furniture with Adjustable Foot Part

Abstract

Described and represented is a swivel fitting of seating furniture for adjusting a foot part from a retracted non-use position to an extended use position, with a mounting section for mounting on a chassis of the seating furniture, with a foot part section for mounting the foot part, with a foot part fitting for adjusting the foot part, wherein the foot part section has a front foot part connection swivel region in the use position and a rear foot part connection swivel region in the non-use position and a rear foot part connection tilt region in the use position and a front foot part connection tilt region in the non-use position, and wherein the foot part connection swivel region and the foot part connection tilt region are held via an adjusting lever and a control lever of the foot part fitting and are adjustable relative to one another. In order to better take into account the requirements placed on seating furniture and at the same time to manufacture the swivel fitting quite cost-effectively and use it reliably, it is provided that, during the entire adjustment from the non-use position to the use position and back, the adjusting lever and the control lever are arranged extending adjacent to one another in a common longitudinal section, which extends at least over 20 cm in the longitudinal direction of the swivel fitting, in a direction at least substantially perpendicular to the adjusting lever and/or to the control lever, in that the longitudinal section in the use position is arranged in front of the foot part connection tilt region in the non-use position and in that in the longitudinal section, the longitudinal extension of the adjusting lever is inclined by less than 15° with respect to the longitudinal extension of the control lever.

Claims

1. A swivel fitting of seating furniture for adjusting a foot part from a retracted non-use position to an extended use position, with a mounting section for mounting on a chassis of the seating furniture, with a foot part section for mounting the foot part, with a foot part fitting for adjusting the foot part, wherein the foot part section has a front foot part connection swivel region in the use position and a rear foot part connection swivel region in the non-use position and a rear foot part connection tilt region in the use position and a front foot part connection tilt region in the non-use position, and wherein the foot part connection swivel region and the foot part connection tilt region are held via an adjusting lever and a control lever of the foot part fitting and are adjustable relative to one another, wherein during the entire adjustment from the non-use position to the use position and back, the adjusting lever and the control lever are arranged extending adjacent to one another in a common longitudinal section, which extends at least over 20 cm in the longitudinal direction of the swivel fitting, in a direction at least substantially perpendicular to the adjusting lever and/or to the control lever, in that the longitudinal section in the use position is arranged in front of the foot part connection tilt region in the non-use position and in that in the longitudinal section, the longitudinal extension of the adjusting lever is inclined by less than 15° with respect to the longitudinal extension of the control lever.

2. The swivel fitting according to claim 1, wherein the longitudinal section extends over at least 25 cm, preferably over at least 30 cm, in particular over at least 35 cm, and/or in that in the longitudinal section, the longitudinal extension of the adjusting lever is inclined by less than 12°, preferably less than 10°, in particular less than 8°, with respect to the longitudinal extension of the control lever.

3. The swivel fitting according to claim 1, wherein the foot part connection tilt region, the foot part connection swivel region, the adjusting lever and the control lever are connected to one another via a five-bar linkage and in that, preferably, the five-bar linkage has a handle lever connecting the control lever directly to the foot part connection swivel region by bypassing the foot part connection tilt region.

4. The swivel fitting according to claim 1, wherein the foot part fitting is fixed on the mounting section so as to be adjustable with respect to the mounting section via a tilt fitting for tilting the foot part fitting and in that, preferably, the mounting section is designed as part of the tilt fitting.

5. The swivel fitting according to claim 4, wherein the mounting section and the tilt fitting form a four-bar linkage, in particular comprising two tilting levers and a connecting lever, and/or in that the tilt fitting, in particular via the connecting lever, is connected to a back fitting for adjusting a backrest from a more upright position to a flatter position relative to the chassis and back.

6. The swivel fitting according to claim 4, wherein the tilt fitting for tilting the foot part fitting and/or the back fitting for adjusting the backrest is motor-driven and in that, preferably, the motorized drive is designed to first adjust the tilt fitting for tilting the foot part fitting from the non-use position and then to adjust the back fitting from the more upright position to a flatter position.

7. The swivel fitting according to claim 4, wherein the tilt fitting or the back fitting has a common coupling strut with the foot part fitting and in that, preferably, stationarily in relation to the coupling strut, a seat section is provided for the adjustable mounting of a seat relative to the chassis.

8. The swivel fitting according to claim 5, wherein the back fitting connects the connecting lever to the coupling strut via a four-bar linkage and a four-bar linkage and/or in that a back section for mounting a backrest is connected to the coupling strut via a four-bar linkage.

9. The swivel fitting according to claim 8, wherein the four-bar linkage for connecting the back section to the coupling strut and the four-bar linkage for connecting the connecting lever to the coupling strut have a common transmission lever.

10. The swivel fitting according to claim 7, wherein the foot part fitting is connected to the coupling strut via a five-bar linkage and in that, preferably, the five-bar linkage is connected to the coupling strut with two parallel levers, which are always aligned at least substantially parallel to one another.

11. The swivel fitting according to claim 10, wherein each parallel lever is connected to the adjusting lever via two articulated connections via a separate drive lever and in that, preferably, the two drive levers are connected to a common spacer lever via two articulated connections.

12. The swivel fitting according to claim 11, wherein a drive lever is designed at least substantially Z-shaped with an upper leg connected to the adjusting lever, with a lower leg connected to the parallel lever and with a central leg connected to the upper leg and to the lower leg and in that the connection region of the central leg and of the upper leg is hinged on the adjusting lever in an articulated manner.

13. The swivel fitting according to claim 12, wherein the connection region of the central leg and of the lower leg is hinged on the spacer lever in an articulated manner and/or in that a joint, in particular the joint with the spacer lever, of the five-bar linkage of the foot part fitting is provided on the connection region of the central leg and of the lower leg.

14. The swivel fitting according to claim 1, wherein the foot part fitting for adjusting the foot part is motor-driven and in that, preferably, the foot part fitting is driven via a motorized foot part drive and the tilt fitting and/or the back fitting is driven via a motorized tilt and/or back drive.

15. A seating furniture with a chassis, two side bolsters and at least one swivel fitting, wherein the swivel fitting is mounted on the chassis via a mounting section and wherein the side bolsters are connected via a stationary and continuous panel, wherein the swivel fitting is designed according to claim 1 and in that the foot part section in the non-use position is arranged at least in sections in the horizontal direction behind the panel.

16. The seating furniture according to claim 15, wherein the swivel fitting, preferably the longitudinal section, is arranged above the panel in the use position.

17. The seating furniture according to claim 15, wherein two swivel fittings provided on opposing sides of the chassis and connected to the chassis on opposing sides are provided according to claim 1 and in that the foot part sections in the non-use position together support a foot part arranged at least in sections in a horizontal direction behind the panel.

18. The seating furniture according to claim 17, wherein the two swivel fittings, preferably the longitudinal sections of the swivel fittings, are arranged above the panel in the use position.

19. The seating furniture according to claim 15, wherein a motorized foot part drive coupled to the foot part fitting for adjusting the foot part and/or a tilt and/or back drive coupled to the tilt fitting for tilting the tilt fitting and/or to the back fitting for adjusting the backrest is provided.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The invention is explained in greater detail below by means of a drawing representing only one exemplary embodiment. The drawing shows:

[0037] FIGS. 1A-C different details of seating furniture according to the invention with a swivel fitting according to the invention with the foot part in the non-use position in perspective views from above and below and in a side view in relation to the seating furniture,

[0038] FIGS. 2A-C different details of the seating furniture and of the swivel fitting each from FIG. 1 with the foot part fitting in a position tilted upwards at the front in views corresponding to FIG. 1,

[0039] FIGS. 3A-C different details of the seating furniture and of the swivel fitting each from FIG. 1 with the foot part fitting in a use position with the backrest in a more upright position in views corresponding to FIG. 1,

[0040] FIGS. 4A-C different details of the seating furniture and of the swivel fitting each from FIG. 1 with the foot part fitting in a use position with the backrest in a flatter position in views corresponding to FIG. 1.

DESCRIPTION OF THE INVENTION

[0041] FIGS. 1A-C to 4A-C represent different details of seating furniture 1 with a swivel fitting 2 for adjusting a foot part 3. Using the swivel fitting 2, the foot part 3 can be adjusted from a non-use position according to FIGS. 1A-C via an intermediate position with the foot part fitting 4 tilted upwards at the front and supporting the foot part 3 according to FIGS. 2A-C into a first use position with a backrest 5 in a more upright position according to FIGS. 3A-C and into a second use position with the backrest 5 in a flatter position according to FIGS. 4A-C and back again.

[0042] The swivel fitting 2 is fixed on one side of a chassis 6 of the seating furniture 1. A further swivel fitting 2 is provided on the opposing side of the chassis 6, but this is not represented here. The chassis 6 of the seating furniture 1 forms a frame with respect to which a backrest 5, a seat 7 and a foot part 3 can be adjusted using the swivel fittings 2. The chassis 6 in this case comprises side bolsters 8 on opposing sides, which are stationary connected in the front region of the seat 7 with a continuous panel 9 extending from side bolster 8 to side bolster 8. A mounting section 10 of the swivel fittings 2 is connected to the side bolsters 8 of the seating furniture 1 in each case such that the swivel fittings 2 are supported by the side bolsters 8 of the chassis 6.

[0043] The chassis 6 also has a cross member 11 which extends from one side bolster 8 to the opposing side bolster 8. For this purpose, the cross member 11 represented and in this respect preferred has stop plates at opposing ends for mounting on the side bolsters 8. A further cross member 12 is fixedly connected to the opposing swivel fittings 2. However, unlike the first-mentioned cross member 11, this cross member 12 is not also stationary connected to the chassis 6, but rather provided so as to be adjustable with respect to the chassis 6 via the swivel fitting 2. The cross member 11 stationary connected to the chassis 6 supports a tilt and back drive 13, while the cross member 12 adjustable with respect to the chassis 6 supports a foot part drive 14. The tilt and back drive 13 and the foot part drive 14 are each connected to a traverse 15, 16, which extend between the swivel fittings 2 and can be adjusted in a motorized manner by extending or retracting drive rods 17, 18.

[0044] A foot part section 43 of the swivel fitting 2 for mounting a foot part 3 is arranged behind the panel 9. In this case, the foot part 3 is arranged below the seat 7 of the seating furniture 1 in the non-use position. The seat 7 is in this case provided with a cover, not represented. In addition, the foot part 3 is designed in two parts, for which purpose the swivel fitting 2 has a foot part connection swivel region 19 and a foot part connection tilt region 20, which can be swivelled relative to one another. The foot part connection swivel region 19 and the foot part connection tilt region 20 each support a board 21 of the two-part foot part 3, which can be covered with a cover, not represented.

[0045] The mounting section 10, together with two tilting levers 22 and a connecting lever 23, forms a four-bar linkage 24 of a tilt fitting 25, with which the foot part fitting 4 according to FIGS. 2A-C can be tilted upwards at the front with respect to the side bolster 8. A back fitting 26 for adjusting the backrest 5 from a more upright position to a flatter position and back again is connected to the mounting section 10 via the connecting lever 23. The back fitting 26 also shares a coupling strut 27 with a foot part fitting 4 for adjusting the foot part 3 from the non-use position according to FIGS. 1A-C into a use position according to FIGS. 3A-C or FIGS. 4A-C. The coupling strut 27 in this case has three seat sections 28 spaced apart from one another in the longitudinal direction of the swivel fitting 2 for mounting the seat 7 stationarily with respect to the coupling strut 27.

[0046] The connecting lever 23 forms a four-bar linkage 30 of the back fitting 26 with three swivel levers 29a, 29b, 29c. The upper swivel lever 29a extending at least substantially in the longitudinal extension of the swivel fitting 2 is in this case connected to two transmission levers 32a, 32b to form a four-bar linkage 33 of the back fitting 26, which comprises the coupling strut 27. The swivel lever 29b assigned to the rear end of the swivel fitting 2 is connected to the coupling strut 27 via a coupling lever 31. The transmission lever 32b assigned to the front end of the swivel fitting 2 is arranged hidden between the mounting section 10 and the coupling strut 27 of the swivel fitting 2. In this case, the four-bar linkage 33 and the four-bar linkage 30 are further connected with the transmission lever 32a assigned to the rear end of the swivel fitting 2 to a four-bar linkage 34 supporting the backrest 5. This four-bar linkage 34 comprises the back section 35 for connecting the backrest 5, the coupling strut 27, the transmission lever 32a and a support lever 52.

[0047] On the side of the coupling strut 27 opposite the back fitting 26, the foot part fitting 4 is hinged on the coupling strut 27 with two parallel levers 36. The two parallel levers 36 in this case run at least substantially parallel to one another during the adjustment of the foot part 3 from the non-use position to the use position. The two parallel levers 36 are each connected to an adjusting lever 39 via two articulated connections 37 via a drive lever 38, wherein the two drive levers 38 are connected to one another via two articulated connections with a spacer lever 40. In addition, the parallel levers 36 are connected to the coupling strut 27 via a tab lever 41 and a drive lever 38 by way of a five-bar linkage. The drive lever 38 of the foot part fitting 4 connected to the tab lever 41 is Z-shaped and therefore has a lower leg, a central leg and an upper leg. The lower leg is connected with a free end to the parallel lever 36 in an articulated manner and with the other end to the tab lever 41 and the spacer lever 40 in an articulated manner. The upper leg is connected with a free end to the adjusting lever 39 in an articulated manner and with the other end to a control lever 42 in an articulated manner.

[0048] By connecting the drive levers 38 to the control lever 42 and to the adjusting lever 39, the control lever 42 and the adjusting lever 39 are adjusted with respect to another in order to adjust a foot part section 43 of the foot part fitting 4 supporting the foot part 3. In this case, the adjusting lever 39 is connected to the foot part connection tilt region 20 in an articulated manner, while the control lever 42, on the one hand, is connected to the foot part connection tilt region 20 in an articulated manner and, on the other hand, to a handle lever 44 of the foot part section 43 in an articulated manner. The other end of the handle lever 44 is connected to the foot part connection swivel region 19 in order to swivel the foot part connection swivel region 19 with respect to the foot part connection tilt region 20 from a position behind the foot part connection swivel region 20 to a position in front of the foot part connection tilt region 20 by adjusting the adjusting lever 39 and the control lever 42 relative to one another. For this purpose, the foot part connection swivel region 19 is directly connected to the foot part connection tilt region 20 in an articulated manner.

[0049] The adjusting lever 39 and the control lever 42 extend at least substantially parallel and adjacent to one another. In addition, the adjusting lever 39 and the control lever 42 run at least substantially in a horizontal longitudinal direction of the swivel fitting 2, in which the adjusting lever 39 and the control lever 42 are displaced more or less together when the foot part 3 is adjusted from the non-use position to a use position. With the foot part 3 in the non-use position and in the use position, the adjusting lever 39 rests on a support element 45 stationary connected to the coupling strut 27 to deflect the weight forces to the coupling strut 27.

[0050] The adjustment of the swivel fitting 2 and of the foot part 3 proceeding from the non-use position according to FIGS. 1A-C will be described in more detail below. In the non-use position, the foot part 3 is arranged together with the foot part section 43 behind the panel 9 of the seating furniture 1, which extends continuously from one side bolster 8 of the chassis 6 of the seating furniture 1 to the opposing side bolster 8. In this case, the front section of the foot part section 43 is formed by the foot part connection tilt region 20, which is arranged in front of the foot part connection swivel region 19. The foot part connection tilt region 20 is in this case arranged such that the part 46 of the foot part 3 supported by the foot part connection tilt region 20 is aligned roughly vertically with the upper side of the foot part 3 pointing forwards. The foot part connection swivel region 19, on the other hand, is aligned such that the part 47 of the foot part 3 supported by the foot part connection swivel region 19 is aligned roughly horizontally with the upper side of the foot part 3 pointing downwards.

[0051] In a first step, the tilt and back drive 13 is actuated, wherein the drive rod 17 of the tilt and back drive 13 is partially extended, as represented in FIGS. 2A-C. As a result, the traverse 15 connected to the drive rod 17 and the opposing swivel fittings 2 is adjusted forwards and thereby adjusts the tilt fitting 25 connected to the traverse 15 in the direction of the restoring force of a spring means 48 of the tilt fitting 25. Through the adjustment, the connecting lever 23 is adjusted forwards and upwards by swivelling the tilting levers 22, since the mounting section 10 remains stationary fixed on the side bolster 8 of the seating furniture 1. By correspondingly adjusting the tilt fitting 25, the front section of the foot part fitting 4, comprising the foot part section 43, and the coupling strut 27 together with the seat 7 and the back fitting 26 are raised in the front region. The foot part section 43 is thus adjusted upwards with respect to the panel 9 of the seating furniture 1. However, as a result, the foot part fitting 4 and the back fitting 26 remain arranged substantially unchanged in relation to the coupling strut 27.

[0052] However, this subsequently changes due to the activation of the foot part drive 14, which therefore executes its drive rod 18, as represented in FIGS. 3A-C. The drive rod 18 of the foot part drive 14 displaces the foot part fitting 4 together with the foot part section 43 forwards, wherein the coupling strut 27, the back fitting 26 and the tilt fitting 25 at least substantially retain their positions. The traverse 16 connected to the foot part drive 14 is connected to the rear parallel lever 36 via a transmission plate 49 in a rotationally fixed manner with respect to the rear parallel lever 36. Driven via the traverse 16 and the transmission plate 49, the parallel levers 36 are thus swivelled forwards at least substantially parallel to one another with respect to the coupling strut 27. The tab lever 41, the drive levers 38 and the spacer lever 40 are in this case also adjusted forwards. Driven via these gears, the adjusting lever 39 and the control lever 42 are adjusted forwards in a roughly straight line.

[0053] Meanwhile, the adjusting lever 39 and the control lever 42 remain adjacent in a longitudinal section 50 in an at least substantially horizontal transverse direction and are arranged approximately parallel to one another in the longitudinal direction of the swivel fitting 2. The longitudinal section 50 extends, in the present case but not necessarily, over a distance of between 35 cm and 40 cm, namely in a longitudinal direction of the swivel fitting 2. When the foot part 3 has reached the forward use position according to FIGS. 3A-C, the longitudinal section 50 is positioned in a region of the seating furniture 1, which is arranged in front of the foot part 3, in particular in front of the foot part connection tilt region 20, in relation to the non-use position of the foot part 3. In the longitudinal section 50, the adjusting lever 39 and the control lever 42 are also inclined relative to one another by less than 15°, in this case by roughly 5° to 6°. In this case, this applies to the actual configuration of the adjusting lever 39 and of the control lever 42. However, it would also be conceivable that only two straight lines are inclined relative to one another by less than 15°, for example by roughly 5° to 6°. One of these straight lines then extends through the terminal articulated connections of the control lever 42, while the other straight line extends through the terminal articulated connections of the adjusting lever 39. In this case, the actual shaping of the adjusting lever 39 and of the control lever 42 is less important.

[0054] Despite the at least substantially parallel extension of adjusting lever 39 and control lever 42 to one another and despite the at least substantially common displacement of adjusting lever 39 and control lever 42, the adjusting lever 39 and the control lever 42 are adjusted to a certain extent relative to one another. This minor adjustment is converted in the foot part section 43 into a significant adjustment of the foot part connection swivel region 19 and of the foot part connection tilt region 20. Proceeding from the rear position of the swivel fitting 2 according to FIGS. 2A-C, the foot part connection swivel region 19 is first raised slightly rearwards and upwards, in particular while the foot part connection swivel region 19 is displaced forwards over the panel 9 of the seating furniture 1. Only after the adjusting lever 39 and the control lever 42 have been displaced forwards over roughly one third to two thirds, in particular roughly half, of the total adjustment travel of the adjusting lever 39 and control lever 42 is the further adjustment of the adjusting lever 39 and of the control lever 42 forwards converted into a swivelling of the foot part connection swivel region 19 forwards and upwards by roughly 180° and a tilting of the foot part connection tilt region 20 forwards and upwards by roughly 90°. The user of the seating furniture 1 can now comfortably rest their legs on the foot part 3 in the use position. The forces thereby acting on the swivel fitting 2 are partially dissipated via the support element 45 fixed stationarily to the coupling strut 27, on which support element 45 the rear region of the adjusting lever 39 rests. In the non-use position, the front region of the adjusting lever 39 together with the control lever 42 rests on the support element 45 in order to hold the foot part 3 securely in position.

[0055] In order to be able to adopt an even more comfortable position of the seating furniture 1 as required, the user can adjust the backrest 5 from the more upright position to a flatter position. For this purpose, the drive rod 17 of the tilt and back drive 13 is extended further forwards. This leads not only to a tilting of the backrest 5 backwards, but also to a displacement of the coupling strut 27 together with the foot part fitting 4 and the backrest 5 forwards with respect to the mounting section 10 of the swivel fitting 2. Adjustment takes place against the restoring force of a spring means 51 of the back fitting 26. In this way, the seating furniture 1 enters into the position represented in FIGS. 4A-C with the foot part 3 in a use position and the backrest 5 in a flatter orientation.

[0056] The seating furniture 1 and the swivel fitting 2 can be adjusted back from the position represented in FIGS. 4A-C in the reverse manner into the position represented in FIGS. 1A-C.

LIST OF REFERENCE NUMERALS

[0057] 1 Seating furniture [0058] 2 Swivel fitting [0059] 3 Foot part [0060] 4 Foot part fitting [0061] 5 Backrest [0062] 6 Chassis [0063] 7 Seat [0064] 8 Side bolster [0065] 9 Panel [0066] 10 Mounting section [0067] 11 Cross member [0068] 12 Cross member [0069] 13 Tilt and back drive [0070] 14 Foot part drive [0071] 15 Traverse [0072] 16 Traverse [0073] 17 Drive rod [0074] 18 Drive rod [0075] 19 Foot part connection swivel region [0076] 20 Foot part connection tilt region [0077] 21 Board [0078] 22 Tilting lever [0079] 23 Connecting lever [0080] 24 Four-bar linkage [0081] 25 Tilt fitting [0082] 26 Back fitting [0083] 27 Coupling strut [0084] 28 Seat section [0085] 29a-c Swivel lever [0086] 30 Four-bar linkage [0087] 31 Coupling lever [0088] 32a-b Transmission lever [0089] 33 Four-bar linkage [0090] 34 Four-bar linkage [0091] 35 Back section [0092] 36 Parallel lever [0093] 37 Articulated connection [0094] 38 Drive lever [0095] 39 Adjusting lever [0096] 40 Spacer lever [0097] 41 Tab lever [0098] 42 Control lever [0099] 43 Foot part section [0100] 44 Handle lever [0101] 45 Support element [0102] 46 Part of the foot part [0103] 47 Part of the foot part [0104] 48 Spring means Tilt [0105] 49 Transmission plate [0106] 50 Longitudinal section [0107] 51 Spring means [0108] 52 Support lever