Pivoting fitting of a chair for adjusting a foot part and chair with adjustable foot part

Abstract

Described and illustrated is a pivot fitting (2) of a seating furniture (1) for adjusting a footrest (3) from a retracted non-use position to an extended use position, comprising a mounting section (10) for mounting on a chassis (6) of the seating furniture (1), a footrest section (43) for mounting the footrest (3), and a footrest fitting (4) for adjusting the footrest (3), wherein the footrest section (43) has a footrest connection pivot area (19) that is forward in the use position and rear in the non-use position, and a footrest connection tilt area (20) that is rear in the use position and front in the non-use position, and wherein the footrest connection pivot area (19) and the footrest connection tilt area (20) are held and adjustable relative to each other by means of an adjusting lever (39) and a control lever (42) of the footrest fitting (4).In order to better meet the requirements placed on seating furniture and to simultaneously manufacture the swivel fitting cost-effectively and use it reliably, it is provided that the adjusting lever (39) and the control lever (42) are arranged adjacent to each other in a common longitudinal section (50) extending at least 20 cm in the longitudinal direction of the swivel fitting (2) during the entire adjustment from the non-use position to the use position and back, in a direction at least substantially perpendicular to the adjusting lever (39) and / or to the control lever (42), that the longitudinal section (50) is arranged in front of the foot section connection tilting area (20) in the non-use position, and that in the longitudinal section (50) the longitudinal extension of the adjusting lever (39) is inclined by less than 15° relative to the longitudinal extension of the control lever (42).

Description

[0001] The invention relates to a seating furniture with a pivoting fitting for adjusting a footrest from a retracted, unused position to an extended, usable position, with a mounting section for mounting on a chassis of the seating furniture, with a footrest section for mounting the footrest, with a footrest fitting for adjusting the footrest, wherein the footrest section has a footrest connection pivot area that is at the front in the usable position and at the rear in the unused position, and a footrest connection tilting area that is at the rear in the usable position and at the front in the unused position, wherein the footrest connection pivot area and the footrest connection tilting area are held and adjustable relative to each other by means of an adjusting lever and a control lever of the footrest fitting, and wherein the adjusting lever and the control lever move in a common position during the entire adjustment from the unused position to the usable position and back,The longitudinal section extending at least 20 cm in the longitudinal direction of the pivot fitting is arranged adjacent to each other in a direction perpendicular to the adjusting lever and / or the control lever. Furthermore, the invention relates to a seating furniture with a chassis, two side panels, and at least one pivot fitting, wherein the pivot fitting is mounted on the chassis via a mounting section and wherein the side panels are connected via a fixed and continuous panel.

[0002] Swivel fittings for adjusting the footrests of seating furniture are already known in various designs. Typically, the footrest of such seating furniture can be positioned in a non-use position below the seat. From this position, the footrest can then be adjusted forward and upward into a use position, in which the user can rest their feet or legs on it. The swivel fittings for adjusting the footrest are mounted to the chassis of the seating furniture via a mounting bracket. The chassis is the supporting structure of the seating furniture, relative to which the footrest can be adjusted. In a simple design of the seating furniture, the chassis includes side panels that rest on the floor. In this case, it is convenient to attach the mounting bracket, which may be plate-shaped, to one of the side panels of the chassis.Usually, two swivel fittings are fixed to opposite sides of the chassis or the opposing side panels. This prevents the foot section from tipping and provides a more robust foot section.

[0003] In known swivel fittings, the foot section is fixed to a foot section, which is formed by at least one board covered with a fabric, particularly upholstered. This foot section is then adjustable via a foot fitting. To allow the foot section to be positioned with a greater distance from the floor when not in use, thus providing the seating furniture with greater ground clearance, the foot sections are sometimes designed in two parts. When the foot section is adjusted, the two parts pivot relative to each other. Both parts of the foot section can then be mounted on different flanges of the foot section. The two parts of the foot section are usually pivoted to different degrees.

[0004] A section of the footrest that swivels more freely can be mounted on a footrest connection swivel joint, while a section that only tilts can be mounted on a footrest connection tilt joint. In the non-use position, the footrest connection swivel joint and the section of the footrest mounted to it are positioned at the rear, while the footrest connection tilt joint and the section of the footrest mounted to it are positioned at the front. The section of the footrest mounted on the footrest connection swivel joint is usually not visible from the outside when in use, whereas the section mounted on the footrest connection tilt joint typically forms a front panel of the seating furniture beneath the seat, preventing the user from seeing under the seat and thus observing the swivel mechanism.In the operating position, the footrest connection tilting area, along with its corresponding part of the footrest, is positioned in a rearward position, allowing, for example, the user's legs to rest on the corresponding part of the footrest. Conversely, the footrest connection swiveling area is positioned in a forward position in the operating position. This allows the user, for example, to rest their feet on the part of the footrest connected to the footrest connection swiveling area.

[0005] The footrest swivel and tilt sections are held in the operating position by an adjusting lever and a control lever of the footrest fitting and supported on the chassis of the seating furniture. To allow the footrest swivel and tilt sections to pivot relative to each other, the adjusting lever and the control lever are designed to be adjustable relative to one another during the adjustment of the footrest from the non-operating position to the operating position and back. The adjusting lever and the control lever can be designed as part of a so-called scissor mechanism and arranged adjacent to each other.

[0006] The swivel fittings known from the prior art are often quite complex in design, making them expensive and sometimes prone to malfunction. Simpler and less expensive swivel fittings, on the other hand, typically do not meet high aesthetic and functional requirements. In their non-use position and when adjusting the footrest, these fittings usually occupy a considerable amount of space, thus often limiting the ground clearance of the seating furniture. Seating furniture of this type with such swivel fittings is known, for example, from US 2019 / 061569 A1 and DE 20 2018 104073 U1.

[0007] Therefore, the present invention is based on the objective of designing and further developing the seating furniture of the type mentioned at the outset and explained in more detail above in such a way that the high aesthetic and functional requirements placed on seating furniture can be better met, while at the same time the swivel fitting can be manufactured quite cost-effectively and used reliably.

[0008] This problem is solved in a seating furniture according to claim 1 in that the adjusting lever and the control lever are arranged adjacent to each other in a common longitudinal section extending at least 20 cm in a direction at least substantially perpendicular to the adjusting lever and / or the control lever during the entire adjustment from the non-use position to the use position and back, that the longitudinal section is arranged in front of the foot section connection tilting area in the non-use position in the use position, and that in the longitudinal section the longitudinal extension of the adjusting lever is inclined by less than 15° relative to the longitudinal extension of the control lever.

[0009] The invention recognizes that the swivel fitting of the seating furniture according to the invention, together with the footrest, can be designed to be particularly compact and efficient in the operating position. This is implemented to a particularly effective degree according to the invention by the fact that the adjusting lever and the control lever extend in approximately the same longitudinal direction of the swivel fitting throughout the entire adjustment process from the non-operating position to the operating position and back. The adjusting lever and the control lever extend adjacent to each other in a common longitudinal section along the swivel fitting for at least 20 cm. This longitudinal section extends at least substantially perpendicular to the adjusting lever and / or the control lever. In this way, the footrest can be positioned comfortably far in front of the seat of the seating furniture, requiring only a very low overall height.This would not be possible, or at best only with considerable additional effort, if a scissor mechanism were used instead, in which the scissor levers are pivoted far apart and therefore do not extend adjacent to each other over a wide longitudinal section, at least essentially in the same direction.

[0010] The aforementioned advantages arise particularly because the longitudinal section, in its operating position, is arranged in an area that, if the footrest were in its non-operating position, would be positioned in front of the footrest connection's tilting area. This ultimately allows the extendable part of the footrest fitting to be extended over a fixed panel beneath the seat of the seating furniture. At the same time, the pivot fitting of the seating furniture according to the invention is also designed to be so compact that, in its non-operating position, the pivot fitting fits behind the panel, even if this panel is quite low. This is not only aesthetically pleasing but also allows for ample ground clearance for the seating furniture.

[0011] The pivot fitting, the base section, and / or the pivot area connecting the base sections do not necessarily have to be, and in particular do not have to be, entirely at the same height as the cover. Instead, according to the invention, the base section is provided behind the cover in the horizontal direction and, if necessary, partially above the cover in the vertical direction.

[0012] In the longitudinal section, the adjusting lever and the control lever run at least substantially parallel to each other for the reasons mentioned. However, a certain angle between the adjusting lever and the control lever can be desirable to allow for simple and reliable adjustment of the foot section. This can be achieved very easily if the adjusting lever and the control lever are adjusted relative to each other at least substantially in the longitudinal direction of the control lever, adjusting lever, and / or swivel fitting. As a compromise between simplicity and reliability on the one hand, and compactness on the other, it is advisable for the angle between the adjusting lever and the control lever in the longitudinal section to be less than 15°.

[0013] In this context, the angle can be determined as needed by first connecting the articulated end points of the adjusting lever and the control lever with a straight line. The angle between these lines can then be determined. However, it is also advantageous if the angles of the actual path of the adjusting lever and the control lever do not exceed 15° in order to achieve the most compact design possible. Short sections where the angle is larger do not necessarily preclude the aforementioned advantage of the invention, particularly as long as the footrest fitting does not collide with the seat's front panel.

[0014] The swivel fitting of the seating furniture, or the seating furniture itself, is described below.

[0015] In a first particularly preferred embodiment of the pivot fitting, the longitudinal section extends over at least 25 cm, preferably at least 30 cm, and particularly at least 35 cm. The longer the longitudinal section, the more compact and simpler the pivot fitting can be. This compactness can be achieved not only in the operating position but also in the non-operating position. The footrest fitting also requires less installation space to allow adjustment via a front panel below the seat. In principle, this panel can also be made lower the longer the longitudinal section extends. However, it should also be noted that extending the longitudinal section beyond a certain length offers no further advantages.This can be the case, for example, from about 50 cm or even from shorter lengths, since the user's leg length is also finite. The exact lengths, however, depend on various factors, especially the user's intended position on the seat with the footrest in its operating position.

[0016] The compactness of the swivel fitting and the associated advantages described above can alternatively or additionally be enhanced by inclined the longitudinal extension of the adjusting lever by less than 12°, preferably less than 10°, and particularly less than 8°, relative to the longitudinal extension of the control lever in the longitudinal section. The smaller the inclination of the adjusting lever and control lever, the more parallel they are. This results in the control lever and the adjusting lever requiring or occupying less installation space, particularly less height, at least in the longitudinal section. To further improve the compactness of the swivel fitting, the adjusting lever and the control lever are arranged side by side rather than one above the other with respect to the seating furniture.In other words, the actuating lever and the control lever are spaced apart from each other at least essentially in the horizontal direction and only conditionally in the vertical direction.

[0017] For efficient adjustment of the pivot fitting despite the compact design of the footboard fitting, it is advantageous to connect the footboard connection tilting area, the footboard connection pivoting area, the adjusting lever, and the control lever via a five-joint chain. This ultimately allows for very precise adjustment of the footboard fitting within the limited installation space available. This is particularly true if the five-joint chain includes a linkage lever that connects the control lever directly to the footboard connection pivoting area, bypassing the footboard connection tilting area. In this way, the footboard connection pivoting area can be swiveled widely, allowing the footboard section to be positioned in a very space-saving manner when not in use.This also makes it possible to ensure that the foot section does not assume the most space-saving configuration in the non-use position, but only when the foot section is adjusted to a certain extent towards the use position.

[0018] To simplify the adjustment of the foot section and thus the foot section fitting, the foot section fitting can be fixed to the mounting section via a tilting mechanism, allowing it to be tilted relative to the mounting section. In this way, the pivot fitting can be functionally divided into a tilting mechanism and a foot section fitting. The tilting mechanism does not primarily adjust the foot section itself, but rather allows it to be moved from its non-use position, thus enabling efficient adjustment of the foot section fitting and, consequently, the foot section. The foot section fitting is fixed to the mounting section via the tilting mechanism. Therefore, the foot section fitting can be adjusted relative to the mounting section and thus to the chassis via the tilting mechanism. It is particularly practical and simple in this context if the mounting section is designed as part of the tilting mechanism.The coupling strut can usefully raise the front area of ​​the footrest fitting relative to the chassis.

[0019] It can be particularly simple and reliable if the mounting section and the tilting mechanism form a four-bar linkage. This allows for a wide and stable tilting of the footrest fitting. This is easily achieved from a design perspective if the four-bar linkage includes two tilting levers and a connecting lever. The tilting mechanism can then be connected via the connecting lever to a backrest fitting for adjusting the backrest from a more upright position to a flatter position relative to the chassis and back again. However, this is also practical if the tilting mechanism is not designed as a four-bar linkage and / or the backrest fitting is not connected to the tilting mechanism via the connecting lever. The backrest fitting can then easily adjust the backrest, more or less independently of the adjustment of the footrest fitting and / or the tilting mechanism, as needed.

[0020] To ensure simple, precise, and reliable adjustment of the swivel mechanism, the tilt mechanism for tilting the footrest can be motorized. Alternatively or additionally, for the same reason, it is also advantageous for the backrest mechanism to be motorized, provided the swivel mechanism includes a backrest. To simplify the swivel mechanism, it is beneficial if the tilt mechanism and the backrest mechanism are driven together, particularly by a single motor. This is especially advantageous if the tilt mechanism and the backrest mechanism are adjusted, at least essentially sequentially, by the motor.When adjusting the foot section from the non-use position to the use position, a tilting action via the tilting mechanism may first occur, and subsequently, in particular not immediately, but only after a partial adjustment of the foot section mechanism, an adjustment of the backrest, especially from the more upright position to the flatter position, may take place.

[0021] For the practical connection and integration of the footrest fitting to or into the swivel fitting, it is advantageous if the tilting fitting or the backrest fitting shares a common connecting strut with the seat fitting. This also allows, in a structurally simple manner, the footrest fitting and the tilting fitting and / or the backrest fitting to be adjusted at least essentially independently of each other. For the sake of structural simplicity and / or increased user comfort, it may be beneficial to provide a seat section for mounting the seat to the swivel fitting, fixed to the connecting strut. To ensure that the seat is held securely against tilting by the connecting strut, it is advisable, if necessary, for the seat section to be designed in two parts, with the two parts of the seat section positioned at a distance from each other along the length of the connecting strut.Furthermore, it is advisable if the seat section is designed to be adjustable relative to the chassis via the swivel fitting and thus via the coupling strut.

[0022] Good functionality and a simple design are achieved, for example, when the backrest fitting connects the connecting lever to the coupling strut sequentially via a four-bar linkage and a five-bar linkage. This also allows for appropriate decoupling between the adjustment of the footrest, seat, and / or backrest. The same advantages can be achieved, alternatively or additionally, if a backrest section is connected to the coupling strut via a four-bar linkage for mounting a backrest.

[0023] To synchronize the adjustment of the swivel fitting, the four-bar linkage connecting the back section to the coupling strut and the five-bar linkage connecting the connecting lever to the coupling struts can share a common transmission lever. This ensures a defined and reliable adjustment of the swivel fitting overall.

[0024] Regardless, the footrest fitting can be connected to the coupling strut via a five-joint chain. This allows for space-saving and precise adjustment of the footrest. This is particularly true when the five-joint chain is attached to the coupling strut with two parallel levers that are always at least essentially parallel to each other. This also ensures a particularly stable connection between the footrest fitting and the coupling strut.

[0025] To achieve precise and space-saving adjustment of the foot section, it is advantageous to connect each of the parallel levers to the adjusting lever via two joints and a separate drive lever. This drive lever can then at least partially control the movement of the foot section. To ensure stable and reliable adjustment of the foot section, the two drive levers can be connected to a common spacer lever via two joints. This spacer lever maintains the drive levers, and thus also the parallel levers, at a predetermined distance from each other, which can synchronize the adjustment of the pivot fitting.

[0026] For targeted and space-saving adjustment of the foot section, it is advantageous to design the drive lever in a shape that is at least essentially Z-shaped. In this configuration, an upper leg of the drive lever can be assigned to the adjusting lever, while a lower leg can be assigned to the corresponding parallel lever. The central leg of the drive lever then connects the upper and lower legs. The connection between the central and upper legs is pivotally fixed to the control lever. This allows for efficient adjustment of the foot section, and in particular the pivoting range of the foot section relative to the tilting range, despite the adjusting and control levers being nearly parallel.

[0027] Additionally, the connection point of the central leg and the lower leg can be pivotally fixed to the spacer lever. This also allows for targeted and efficient adjustment of the foot section. Furthermore, it can be facilitated that the foot section only assumes its most compact position after a partial adjustment of the foot section fitting. This is also achieved, alternatively or additionally, by providing a joint, in particular the joint with the spacer lever, in the five-joint chain of the foot section fitting at the connection point of the central leg and the lower leg.

[0028] To ensure simple, yet very precise and reliable adjustment of the swivel fitting, the foot fitting can be used to adjust the

[0029] The footrest can be motorized. This is particularly relevant and also allows for largely independent adjustment of the footrest, seat, and backrest if the footrest mechanism is adjusted via a different motor drive than the tilt mechanism and / or the backrest mechanism. To simplify the swivel mechanism, it is also advantageous if the footrest mechanism is driven by a motorized footrest drive and the tilt mechanism and / or backrest mechanism are driven by a motorized tilt and / or backrest drive. Thus, the tilt mechanism and the backrest mechanism can be driven, at least essentially, by a single, separate motor drive.

[0030] In a first particularly preferred embodiment of the seating furniture, the pivoting mechanism is arranged above the fixed panel in its operating position. The panel extends, in particular, from one side panel to the opposite side panel of the seating furniture. Thus, in its operating position, the pivoting mechanism is positioned above the panel, especially in the vertical direction. This allows for a compact design, with the panel serving to stiffen the seating furniture. To ensure that adjusting the seating furniture into its operating position is convenient for the user, it is advantageous for the longitudinal section of the pivoting mechanism to be positioned above the panel in this position.

[0031] Alternatively or additionally, two pivot fittings can be provided, located on two opposite sides of the chassis. The pivot fittings are also fixed to the opposite sides of the chassis. This prevents the pivot fitting from tilting and allows for the dissipation of large forces without requiring the pivot fittings to be particularly robust. The pivot fittings advantageously interact in such a way that the foot section sections jointly support a foot section. This is achieved, in particular, by ensuring that the foot section, in its non-use position, is positioned at least partially in a horizontal direction behind the seat panel. For the sake of simplicity and stability of the chassis, the invention provides that the panel extends from one side panel to the opposite side panel below the seat of the chair.

[0032] In this context, it is particularly advantageous if the two pivot fittings are positioned above the panel in their operating position. The pivot fittings are thus positioned vertically above the panel in their operating position. This allows for a particularly compact design, with the panel serving to stiffen the seating. To ensure that adjusting the seating to its operating position is convenient for the user, it is further advantageous if the longitudinal sections of the pivot fittings extend beyond the fixed panel.

[0033] To ensure simple, precise, and reliable adjustment of the swivel fitting, it is advisable to use a motorized footrest drive coupled with the footrest fitting. Alternatively or additionally, this can be achieved by using a motorized tilt drive connected to the tilt fitting for tilting the footrest. Regardless of the method, the backrest fitting can also be coupled with a motorized backrest drive to achieve the same advantage. However, the simplest and most cost-effective solution is to drive both the tilt fitting for tilting the footrest and the backrest fitting for adjusting the backrest together via a single motorized tilt and / or backrest drive, even if the motors operate sequentially as needed.

[0034] The invention will now be explained in more detail with reference to a drawing that illustrates only one embodiment. The drawing shows Fig. 1A-C shows different details of a seating furniture according to the invention with a swivel fitting with the foot section in the non-use position in perspective views from above and below and in a side view with respect to the seating furniture. Fig. 2A-C shows different details of the seating furniture and the swivel fitting, each from the... Fig. 1 with the footrest fitting in a forward-tilted upward position in views corresponding to the Fig. 1 , Fig. 3A-C different details of the seating furniture and the swivel fitting each from the Fig. 1 with the footrest fitting in a working position, with the backrest in a more upright position, in views according to the Fig. 1 , Fig. 4A-C different details of the seating furniture and the swivel fitting each from the Fig. 1 with the footrest fitting in a working position, with the backrest in a flatter position, in views according to the Fig. 1 .

[0035] In the Fig. 1A-C bis 4A-C Various details of a seating element 1 with a swivel fitting 2 for adjusting a footrest 3 are shown. The swivel fitting 2 allows the footrest 3 to be moved from a non-use position according to the Fig. 1A-C via an intermediate position with the foot fitting 4 tilted forwards and upwards, supporting the foot part 3, according to Fig. 2A-C into a first operating position with a backrest 5 in a more upright position according to Fig. 3A-C and be adjusted to a second operating position with the backrest 5 in a flatter position according to 4A-C and back again.

[0036] The pivot fitting 2 is fixed to one side of a chassis 6 of the seating furniture 1. Another pivot fitting 2 is provided on the opposite side of the chassis 6, but this is not shown here. The chassis 6 of the seating furniture 1 forms a frame against which a backrest 5, a seat 7, and a footrest 3 can be adjusted using the pivot fittings 2. The chassis 6 includes side panels 8 on opposite sides, which are fixedly connected in the front area of ​​the seat 7 by a continuous panel 9 extending from side panel 8 to side panel 8. A mounting section 10 of the pivot fittings 2 is connected to each side panel 8 of the seating furniture 1, so that the pivot fittings 2 are supported by the side panels 8 of the chassis 6.

[0037] The chassis 6 further comprises a crossbeam 11 extending from one side panel 8 to the opposite side panel 8. The illustrated and thus preferred crossbeam 11 has stop plates at opposite ends for mounting it to the side panels 8. Another crossbeam 12 is rigidly connected to the opposite pivot fittings 2. Unlike the first-mentioned crossbeam 11, this crossbeam 12 is not also rigidly connected to the chassis 6, but is adjustable relative to the chassis 6 via the pivot fitting 2. The crossbeam 11 rigidly connected to the chassis 6 carries a tilting and retracting drive 13, while the crossbeam 12, which is adjustable relative to the chassis 6, carries a footrest drive 14.The tilt and back drive 13 and the foot section drive 14 are each connected to a traverse 15,16 which extends between the swivel fittings 2 and can be adjusted by motor by extending or retracting drive rods 17,18.

[0038] Behind the cover 9, a foot section 43 of the pivot fitting 2 is arranged for mounting a foot section 3. In its non-use position, the foot section 3 is positioned below the seat 7 of the seating furniture 1. The seat 7 is covered with a fabric (not shown). The foot section 3 is also designed in two parts, for which the pivot fitting 2 has a foot section connection pivot area 19 and a foot section connection tilt area 20, which can be pivoted relative to each other. The foot section connection pivot area 19 and the foot section connection tilt area 20 each support a board 21 of the two-part foot section 3, which may be covered with a fabric (not shown).

[0039] The assembly section 10, together with two tilt levers 22 and a connecting lever 23, forms a four-bar linkage 24 of a tilt fitting 25, with which the foot fitting 4 is attached according to the Fig. 2A-C The backrest 5 can be tilted upwards opposite the side panel 8 at the front. A backrest 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 backrest fitting 26 is also connected to a footrest fitting 4 for adjusting the footrest 3 from the non-use position according to the Fig. 1A-C into a working position according to the Fig. 3A-C or Fig. 4A-C a coupling strut 27. The coupling strut 27 has three seat sections 28 spaced apart from each other in the longitudinal direction of the swivel fitting 2 for mounting the seat 7 fixedly opposite the coupling strut 27.

[0040] The connecting lever 23, together with three pivot levers 29a, 29b, 29c, forms a four-bar linkage 30 of the back fitting 26. The upper pivot lever 29a, which extends at least substantially along the longitudinal axis of the pivot fitting 2, is connected to two transmission levers 32a, 32b to form a four-bar linkage 33 of the back fitting 26, which includes the connecting strut 27. The pivot lever 29b, associated with the rear end of the pivot fitting 2, is connected to the connecting strut 27 via a coupling lever 31. The transmission lever 32b, associated with the front end of the pivot fitting 2, is concealed between the mounting section 10 and the connecting strut 27 of the pivot fitting 2. The four-bar linkage 33 and the four-bar linkage 30 are further connected to the transmission lever 32a assigned to the rear end of the swivel fitting 2 with a four-bar linkage 34 supporting the backrest 5.This four-bar linkage 34 includes the back section 35 for connecting the backrest 5, the coupling strut 27, the transmission lever 32a and a support lever 52.

[0041] On the side of the coupling strut 27 opposite the back fitting 26, the foot fitting 4 is articulated to the coupling strut 27 by two parallel levers 36. During adjustment of the foot section 3 from the non-use position to the use position, the two parallel levers 36 run at least substantially parallel to each other. Each of the two parallel levers 36 is connected via two joint connections 37 to an actuating lever 39 via a drive lever 38, with the two drive levers 38 being connected to each other via a spacer lever 40 via two joint connections. Furthermore, the parallel levers 36 are connected to the coupling strut 27 by a five-link chain via a link lever 41 and a drive lever 38. The drive lever 38 of the foot fitting 4, which is connected to the link lever 41, is Z-shaped and thus has a lower leg, a central leg, and an upper leg.The lower leg is pivotally connected at one free end to the parallel lever 36 and at the other end pivotally connected to the tab lever 41 and the spacer lever 40. The upper leg is pivotally connected at one free end to the adjusting lever 39 and at the other end pivotally connected to a control lever 42.

[0042] By connecting the drive levers 38 with the control lever 42 and the adjusting lever 39, the control lever 42 and the adjusting lever 39 are adjusted relative to each other in order to adjust a foot section 43 of the foot fitting 4, which supports the foot section 3. The adjusting lever 39 is pivotally connected to the foot section connection tilting area 20, while the control lever 42 is pivotally connected on one side to the foot section connection tilting area 20 and on the other side to a linkage lever 44 of the foot section 43. The other end of the linkage lever 44 is connected to the foot section pivoting area 19 so that, by adjusting the adjusting lever 39 and the control lever 42 relative to each other, the foot section pivoting area 19 is pivoted from a position behind the foot section connection tilting area 20 to a position in front of the foot section tilting area 20, opposite the foot section tilting area 20.For this purpose, the foot section connection swivel area 19 is directly articulated to the foot section connection tilt area 20.

[0043] The adjusting lever 39 and the control lever 42 extend at least substantially parallel and adjacent to each other. Furthermore, the adjusting lever 39 and the control lever 42 run at least substantially in a horizontal longitudinal direction of the pivot fitting 2, in which the adjusting lever 39 and the control lever 42 are moved more or less simultaneously from the non-use position to a use position when the foot section 3 is adjusted. With the foot section 3 in both the non-use and use positions, the adjusting lever 39 rests on a support element 45, which is fixedly connected to the connecting strut 27, for the purpose of transferring the weight forces to the connecting strut 27.

[0044] The following describes the adjustment of the swivel fitting 2 and the foot section 3 starting from the non-use position according to the Fig. 1A-C The foot section 3, in its non-use position, is arranged together with the foot section 43 behind the panel 9 of the seating furniture 1, which extends continuously from one side panel 8 of the chassis 6 of the seating furniture 1 to the opposite side panel 8. The front section of the foot section 43 is formed by the foot section connection tilting area 20, which is located in front of the foot section connection pivoting area 19. The foot section connection tilting area 20 is arranged such that the part 46 of the foot section 3 supported by the foot section connection tilting area 20 is oriented approximately vertically with the top of the foot section 3 facing forward. The foot section connection pivoting area 19, on the other hand, is oriented such that the part 47 of the foot section 3 supported by the foot section connection pivoting area 19 is oriented approximately horizontally with the top of the foot section 3 facing downward.

[0045] In a first step, the tilting and backing drive 13 is actuated, whereby the drive rod 17 of the tilting and backing drive 13 is partially extended, as shown in the Fig. 2A-C This is illustrated. As a result, the crossbar 15, connected to the drive rod 17 and the opposing pivot fittings 2, moves forward, thereby adjusting the tilt fitting 25 connected to the crossbar 15 in the direction of the restoring force of a spring element 48 of the tilt fitting 25. This adjustment causes the connecting lever 23 to pivot forward and upward by pivoting the tilt levers 22, since the mounting section 10 remains fixed to the side panel 8 of the seat 1. The corresponding adjustment of the tilt fitting 25 raises the front section of the footrest fitting 4, comprising the footrest section 43, and the connecting strut 27, together with the seat 7 and the backrest fitting 26, in the front area. The footrest section 43 is thus moved upward relative to the panel 9 of the seat 1. However, the foot fitting 4 and the back fitting 26 remain essentially unchanged in relation to the coupling strut 27.

[0046] However, this changes subsequently when the foot section drive 14 is activated, which then extends its drive rod 18, as shown in the Fig. 3A-C The drive rod 18 of the foot section drive 14 moves the foot section fitting 4, together with the foot section section 43, forward, whereby the connecting strut 27, the back fitting 26, and the tilting fitting 25 retain at least substantially their positions. The crossbar 16 connected to the foot section drive 14 is rotationally fixed to the rear parallel lever 36 via a transmission plate 49. Thus, driven by the crossbar 16 and the transmission plate 49, the parallel levers 36 are pivoted forward, at least substantially parallel to each other, relative to the connecting strut 27. The tab lever 41, the drive levers 38, and the spacer lever 40 also move forward. Driven by these mechanisms, the adjusting lever 39 and the control lever 42 move forward in an approximately straight line.

[0047] Meanwhile, the adjusting lever 39 and the control lever 42 remain adjacent to each other in a longitudinal section 50 in a transverse direction that is at least substantially horizontal and approximately parallel to each other in the longitudinal direction of the pivot fitting 2. The longitudinal section 50 extends, in this case, but not necessarily, over a distance of between 35 cm and 40 cm in one longitudinal direction of the pivot fitting 2. When the foot part 3 is in the forward operating position according to the Fig. 3A-C Once the longitudinal section 50 has been reached, it is positioned in a region of the seat 1 which, relative to the non-use position of the foot section 3, is located in front of the foot section 3, in particular in front of the foot section connection tilting area 20. In the longitudinal section 50, the adjusting lever 39 and the control lever 42 are also inclined relative to each other by less than 15°, in this case by approximately 5° to 6°. This applies to the actual design of the adjusting lever 39 and the control lever 42. However, it would also be conceivable that only two straight lines are inclined relative to each other by less than 15°, for example by approximately 5° to 6°. One of these straight lines then extends through the end joints of the control lever 42, while the other straight line extends through the end joints of the adjusting lever 39. In that case, the actual shape of the adjusting lever 39 and the control lever 42 is less important.

[0048] Despite the at least substantially parallel alignment of the adjusting lever 39 and the control lever 42 relative to each other, and despite their at least substantially common movement, the adjusting lever 39 and the control lever 42 are adjusted relative to each other to a certain extent. This slight adjustment is translated into a significant adjustment of the foot section pivot range 19 and the foot section tilt range 20 in the foot section section 43. Starting from the rear position of the pivot fitting 2 according to the Fig. 2A-C The footrest connection swivel area 19 is initially raised slightly upwards and to the rear, particularly as it is moved forwards over the cover 9 of the seat 1. Only after the adjusting lever 39 and the control lever 42 have been moved forwards by approximately one-third to two-thirds, and in particular about half, of their total adjustment range, does the further forward movement of the adjusting lever 39 and the control lever 42 translate into a pivoting of the footrest connection swivel area 19 by approximately 180° upwards and a tilting of the footrest connection tilting area 20 by approximately 90° upwards. The user of the seat 1 can now comfortably rest their legs on the footrest 3 in the operating position.The forces acting on the pivot fitting 2 are partially transferred via the support element 45, which is fixed to the coupling strut 27 and on which the rear portion of the adjusting lever 39 rests. In the non-use position, the front portion of the adjusting lever 39, together with the control lever 42, rests on the support element 45 to securely hold the foot section 3 in position.

[0049] To assume an even more comfortable position from the seat 1, the user can adjust the backrest 5 from its more upright position to a flatter position. For this purpose, the drive rod 17 of the tilting and backrest drive 13 is extended further forward. This not only tilts the backrest 5 backward, but also shifts the connecting strut 27, along with the footrest fitting 4 and the backrest 5, forward relative to the mounting section 10 of the swivel fitting 2. The adjustment is made against the restoring force of a spring element 51 of the backrest fitting 26. The seat 1 thus moves into the position described in the Fig. 4A-C The position shown is with the foot section 3 in a functional position and the backrest 5 in a flatter orientation.

[0050] The seat 1 and the swivel fitting 2 can be removed from the into the Fig. 4A-C the depicted position is reversed and returned to the position shown in the Fig. 1A-CThe position shown can be reset. Reference symbol list

[0051] 1 Seating 2 Swivel fitting 3 Foot section 4 Foot section fitting 5 Backrest 6 Chassis 7 Seat 8 Side panel 9 Cover 10 Mounting section 11 Crossbeam 12 Crossbeam 13 Tilt and backrest drive 14 Foot section drive 15 Crossbeam 16 Crossbeam 17 Drive rod 18 Drive rod 19 Foot section connection swivel area 20 Foot section connection tilt area 21 Board 22 Tilt lever 23 Connecting lever 24 Four-jointed chain 25 Tilt fitting 26 Backrest fitting 27 Coupling strut 28 Seat section 29a-c Swivel lever 30 Four-jointed chain 31 Coupling lever 32a-b Transmission lever 33 Four-jointed chain 34 Four-jointed chain 35 Back section 36 Parallel lever 37 Joint connection 38 Drive lever 39 Actuating lever 40 Spacer lever 41 Tab lever 42 Control lever 43 Foot section 44 Steering lever 45 Support element 46 Part of the foot section 47 Part of the foot section 48 Spring element tilt 49 Transmission plate 50 Longitudinal section 51 Spring element 52 Support lever

Claims

1. Seating furniture (1) comprising a chassis (6), two side panels (8), and at least one pivot fitting (2), wherein the pivot fitting (2) is mounted to the chassis (6) via a mounting section (10), wherein the side panels (8) are connected by a fixed and continuous cover (9), wherein the pivot fitting (2) is designed to adjust a footrest (3) from a retracted non-use position to an extended use position, wherein the pivot fitting (2) comprises a footrest section (43) for mounting the footrest (3) and a footrest fitting (4) for adjusting the footrest (3), wherein the footrest section (43) comprises a footrest connection pivot area (19) which is located at the front in the use position and at the rear in the non-use position, and a footrest connection tilt area (20) which is located at the rear in the use position and at the front in the non-use position, wherein the footrest connection pivot area (19) and the footrest connection tilt area (20) are held and adjustable relative to each other via an adjusting lever (39) and a control lever (42) of the footrest fitting (4), wherein the adjusting lever (39) and the control lever (42) are arranged adjacent to each other during the entire adjustment from the non-use position to the use position and back, in a common longitudinal section (50) extending at least 20 cm in the longitudinal direction of the pivot fitting (2), in a direction at least substantially perpendicular to the adjusting lever (39) and / or the control lever (42), wherein the longitudinal section (50) in the use position is arranged in front of the footrest connection tilt area (20) in the non-use position, and wherein in the longitudinal section (50) the longitudinal extension of the adjusting lever (39) is inclined by less than 15° relative to the longitudinal extension of the control lever (42), characterized in that the footrest section (43) in the non-use position is arranged at least in sections horizontally behind the cover (9).

2. Seating furniture according to claim 1, characterized in that the pivot fitting (2), preferably the longitudinal section (50), is arranged above the cover (9) in the use position.

3. Seating furniture according to claim 1 or 2, characterized in that two pivot fittings (2) provided on opposite sides of the chassis (6) and connected to the chassis (6) on opposite sides are provided according to one of claims 1 to 14, and the footrest sections (43) in the non-use position jointly support a footrest (3) arranged at least in sections horizontally behind the cover (9), and that, preferably, the two pivot fittings (2), preferably the longitudinal sections (50) of the pivot fittings (2), are arranged above the cover (9) in the use position.

4. Seating furniture according to one of claims 1 to 3, characterized in that a motorized footrest drive (14) coupled to the footrest fitting (4) for adjusting the footrest (3) and / or a tilt and / or backrest drive (13) coupled to the tilt fitting (25) for tilting the tilt fitting (25) and / or to the backrest fitting (26) for adjusting the backrest (5) is provided.

5. Seating furniture according to one of claims 1 to 4, characterized in that the longitudinal section (50) extends over at least 25 cm, preferably over at least 30 cm, in particular over at least 35 cm, and / or that in the longitudinal section (50) the longitudinal extension of the adjusting lever (39) is inclined by less than 12°, preferably less than 10°, in particular less than 8°, relative to the longitudinal extension of the control lever (42).

6. Seating furniture according to one of claims 1 to 5, characterized in that the footrest connection tilt area (20), the footrest connection pivot area (19), the adjusting lever (39), and the control lever (42) are connected to each other via a five-bar linkage, and that, preferably, the five-bar linkage comprises a steering lever (44) connecting the control lever (42) directly to the footrest connection pivot area (19), bypassing the footrest connection tilt area (20).

7. Seating furniture according to one of claims 1 to 6, characterized in that the footrest fitting (4) is adjustably fixed to the mounting section (10) via a tilt fitting (25) for tilting the footrest fitting (4) relative to the mounting section (10), and that, preferably, the mounting section (10) is designed as part of the tilt fitting (25) and / or the mounting section (10) and the tilt fitting (25) form a four-bar linkage (24), in particular comprising two tilt levers (22) and a connecting lever (23), and / or the tilt fitting (25), in particular via the connecting lever (23), is connected to a backrest fitting (26) for adjusting a backrest (5) from a more upright position to a flatter position relative to the chassis (6) and back.

8. Seating furniture according to claim 7, characterized in that the tilt fitting (25) for tilting the footrest fitting (4) and / or the backrest fitting (26) for adjusting the backrest (5) is motor-driven, and that, preferably, the motor drive (13) is designed to first adjust the tilt fitting (25) for tilting the footrest fitting (4) from the non-use position and then to adjust the backrest fitting (26) from the more upright position to a flatter position.

9. Seating furniture according to one of claims 7 or 8, characterized in that the tilt fitting (25) or the backrest fitting (26) has a common coupling bar (27) with the footrest fitting (4), and that, preferably, a seat section (28) for adjustably mounting a seat (7) relative to the chassis (6) is provided fixed to the coupling bar (27).

10. Seating furniture according to one of claims 7 to 9, characterized in that the banckrest fitting (26) connects the connecting lever (23) to the coupling bar (27) via a four-bar linkage (30) and a four-bar linkage (33) and / or a backrest section (35) for mounting a backrest (5) is connected to the coupling bar (27) via a four-bar linkage (34), and that, preferably, the four-bar linkage (34) for connecting the backrest section (35) to the coupling bar (27) and the four-bar linkage (33) for connecting the connecting lever (23) to the coupling bar (27) have a common transmission lever (32).

11. Seating furniture according to one of claims 9 or 10, characterized in that the footrest fitting (4) is connected to the coupling bar (27) via a five-bar linkage, and, preferably, the five-bar linkage is connected to the coupling bar (27) with two parallel levers (36) that are always at least substantially parallel to each other, and that, preferably, each parallel lever (36) is connected to the adjusting lever (39) via two joint connections (37) via a separate drive lever (38), and, preferably, the two drive levers (38) are connected to a common spacer lever (40) via two joint connections.

12. Seating furniture according to claim 11, characterized in that a drive lever (28) is formed at least substantially Z-shaped with an upper leg connected to the adjusting lever (39), a lower leg connected to the parallel lever (36), and a central leg connected to the upper leg and the lower leg, and that the connection area of the central leg and the upper leg is articulated to the control lever (39).

13. Seating furniture according to claim 12, characterized in that the connection area of the central leg and the lower leg is articulated to the spacer lever (40) and / or that a joint, in particular the joint with the spacer lever (40), of the five-bar linkage of the footrest fitting (4) is provided at the connection area of the central leg and the lower leg.

14. Seating furniture according to one of claims 1 to 13, characterized in that the footrest fitting (4) for adjusting the footrest (3) is motor-driven and that, preferably, the footrest fitting (4) is driven by a motorized footrest drive (14) and the tilt fitting (25) and / or the backrest fitting (26) is driven by a motorized tilt and / or backrest drive (13).

Images