Seating furniture with pivotable functional part

Abstract

Seating furniture including a base body and a functional part which can pivot with respect to the base body, at least one pivot fitting for adjusting the functional part relative to the base body, and a separate lift setting mechanism. The functional part is connected to the base body by an adjusting lever. The pivot lever and the adjusting lever can be pivoted about a pivot axis with respect to one another. The adjusting lever can be moved with respect to the base body out of a lower position into an upper position and back. The steering lever can pivot with respect to the pivot lever and with respect to the control lever. The control lever can pivot with respect to the base body and/or to the adjusting lever and the control lever is connected to the adjusting lever.

Claims

1. A piece of seating furniture comprising: a base body comprising: a lift setting mechanism comprising a guide and a lug displacably extending from the guide; a steering lever pivotably connected to the lug and to a control lever; and an adjusting lever, pivotably connected to the control lever; the piece of seating furniture further comprising: a functional part supported by a pivot lever, pivotably connected to the adjusting lever such that the functional part can be pivoted with respect to the base body, wherein the lift setting mechanism is configured to lock the functional part with respect to the base body, wherein the lift setting mechanism can be moved out of an adjustment position which blocks the movement of the functional part relative to the base body into several positions in a direction of load into a reset position which releases the movement of the functional part relative to the base body from at least one position in the direction of load, wherein the adjusting lever can be moved with respect to the base body out of a lower, retracted position into an upper, extended position and back, and wherein the control lever is connected to the adjusting lever such that when the adjusting lever is moved from the lower, retracted position into the upper, extended position, the control lever is pivoted with respect to the base body and/or to the adjusting lever and thus causes a pivoting movement of the pivot lever with respect to the adjusting lever via the steering lever.

2. The piece of seating furniture according to claim 1, wherein the lift setting mechanism comprises at least one clamping element provided in the guide, the at least one clamping element being displaceable with respect to the lug between a clamping position and at least one adjustment position, and wherein, in the clamping position, the at least one clamping element is received in a clamping gap between the lug and the guide such that the lug is prevented from moving with respect to the guide in one direction.

3. The piece of seating furniture according to claim 2, wherein the clamping gap tapers in one direction and/or wherein the clamping element is clamped between a tapering end of the lug and the guide in the clamping position.

4. The piece of seating furniture according to claim 2, wherein the at least one clamping element is provided on a clamping slide, wherein the clamping slide is held in a slot in the lug such that the clamping slide is displaceable with respect to the lug.

5. The piece of seating furniture according to claim 2, wherein at least one of the clamping element and the clamping slide is releasably connected to the lug such that the releasable connection is locked when the lug is moved with respect to the guide into a connection position or when at least one of the clamping element and the clamping slide impacts against an end stop.

6. The piece of seating furniture according to claim 2, wherein at least one of the clamping element and the clamping slide is releasably connected to the lug such that the releasable connection is unlocked when the lug is moved with respect to the guide into a release position or when at least one of the clamping element and the clamping slide impacts against an initial stop.

7. The piece of seating furniture according to claim 2, wherein at least one clamping element and/or the clamping slide is frictionally engaged with an interior portion of the guide.

8. The piece of seating furniture according to claim 1, wherein the lug can be moved continuously along the guide.

9. A piece of seating furniture comprising a base body, and a functional part which can be pivoted with respect to the base body, at least one pivot fitting for adjusting the functional part relative to the base body and a locking joint for locking the functional part with respect to the base body in a locking position of the locking joint, wherein the functional part is supported by a pivot lever and is connected to the base body by an adjusting lever, wherein the pivot lever and the adjusting lever are interconnected by the locking joint forming a pivot axis and wherein the locking joint has a toothed ring and a locking mechanism which engages in the toothed ring in the locking position, wherein the adjusting lever can be moved with respect to the base body out of a lower position into an upper position and back, wherein the pivot lever is connected to the base body by a lever connection comprising a steering lever and a control lever, wherein the control lever is pivotably connected to the steering lever and the adjusting lever, and wherein the control lever is connected to the adjusting lever such that when the adjusting lever is moved from the lower position into the upper position and back, the control lever is pivoted with respect to the base body and/or to the adjusting lever and thus causes a pivoting movement of the pivot lever with respect to the adjusting lever via the steering lever.

10. The piece of seating furniture according to claim 9, wherein the locking mechanism is spring-loaded in the direction of the toothed ring.

11. The piece of seating furniture according to claim 9, wherein the toothed ring and the locking mechanism can be disengaged in a pivot position for pivoting the pivot lever with respect to the adjusting lever in a starting position.

12. The piece of seating furniture according to claim 9, wherein the pivot lever and the adjusting lever are held non-positively and in that the toothed ring is held to the locking joint such that the toothed ring is rotatable with respect to the pivot lever and/or to the adjusting lever such that in the locking position, the pivot lever can be pivoted with respect to the adjusting lever in one direction.

13. The piece of seating furniture according to claim 9, wherein a clamp is provided for adjusting the frictional connection between the pivot lever and the adjusting lever.

14. The piece of seating furniture according to claim 1, wherein the control lever is connected by one end to the base body by another end to the steering lever and is connected between both ends to the adjusting lever.

15. The piece of seating furniture according to claim 1, wherein the lever connection engages on the pivot lever by a pivot connection, the pivot axis, is arranged between the end of the pivot lever associated with the free end of the functional part and the pivot connection, between the pivot lever and the adjusting lever.

16. The piece of seating furniture according to claim 1, wherein the adjusting lever is held on the base body by a mount and can be telescoped, at least partly in a vertical direction with respect to the mount.

17. The piece of seating furniture according to claim 1, wherein the control lever is connected directly or by a compensating lever on the mount.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) In the following, the invention will be described in more detail with reference to drawings which show only one embodiment.

(2) FIG. 1 is a perspective view of a detail of seating furniture according to the invention with a swiveled-back functional part,

(3) FIG. 2 is a perspective view of the detail from FIG. 1 with a swiveled-up functional part,

(4) FIG. 3 is a side view of the seating furniture from FIG. 1 with a cushion and a swiveled-back functional part,

(5) FIG. 4 is a side view of the seating furniture from FIG. 3 with a swiveled-up functional part,

(6) FIG. 5 is a perspective view of a lift setting mechanism,

(7) FIG. 6A-B are sectional views along lines VIA-VIA and VIB-VIB of the lift setting mechanism from FIG. 5 in a partly extended position,

(8) FIG. 7 is a longitudinal sectional view of the lift setting mechanism from FIG. 5 in an almost fully extended position,

(9) FIG. 8 is a longitudinal sectional view of the lift setting mechanism from FIG. 5 in an extended end position,

(10) FIG. 9 is a longitudinal sectional view of the lift setting mechanism from FIG. 9 in an almost fully retracted position,

(11) FIG. 10 is a longitudinal sectional view of the lift setting mechanism from FIG. 9 in a retracted starting position,

(12) FIG. 11 is a side view of a pivot fitting with a locking joint and a swiveled-back pivot lever, and

(13) FIG. 12 is a side view of the pivot fitting from FIG. 11 with a swiveled-up pivot lever.

DETAILED DESCRIPTION OF THE INVENTION

(14) FIG. 1 shows the internal construction of an item of seating furniture 1 having a base body 2 in the form of a backrest and an adjustable functional part 3 in the form of a head part, more specifically on the right-hand side of the seating furniture 1 which is in the form of an armchair. The pivot fitting 4, provided on the right-hand side of the seating furniture 1, for adjusting the functional part 3 is also provided in the same way in a mirror-inverted manner on the left-hand side (not shown) of the seating furniture 1.

(15) In addition to the pivot fitting 4, a respective separate lift setting mechanism 5 is provided which is connected to the pivot fitting 4 and prevents the functional part 3 from being inadvertently swiveled back again into the swiveled-back starting position from a partly swiveled-up position due to the user resting his head on the head part. The lift setting mechanism 5 comprises a lug 6 which is guided on a guide means 7 and is displaceable with respect to the guide means 7. In the illustrated and in this respect preferred item of seating furniture 1 the guide means 7 is configured as a housing from which the lug 6 can be extended to move the pivot fitting 4 and the functional part 3 out of the swiveled-back starting position shown in FIG. 1, more specifically in the direction of a swiveled-up position of the functional part 3. In the illustrated and in this respect preferred item of seating furniture 1, the lug 6 of the lift setting mechanism 5 is connected pivotably to a steering lever 8, whereas the guide means 7 of the lift setting mechanism 5 is fixed relative to the base body 2 in the form of the backrest.

(16) The functional part 3 can be moved manually upwards into the swiveled-up position from its swiveled-back position shown in FIG. 1. The swiveled-up position is shown in FIG. 2. In the swiveled-up position of the functional part 3, the functional part 3 has not only been pivoted forwards, but has also been moved upwards. The pivot fitting 4 shown in more detail in FIG. 3 is used for this purpose.

(17) FIG. 3 also shows, in addition to the pivot fitting 4, the base body 2 and the functional part 3 in the swiveled-back position together with cushioning 9. In the view according to FIG. 4, the functional part 3 is in the swiveled-up position in the same item of seating furniture 1. The functional part 3 is supported by a pivot lever 10 on the respectively illustrated side of the seating furniture 1. The pivot lever 10 has a free end which, in the illustrated and in this respect preferred item of seating furniture 1 is oriented in the direction of the free end of the functional part 3 or is at least associated therewith. The pivot lever 10 is mounted by its opposite end in a freely rotatable manner on an adjusting lever 11. The pivot connection 12 between the pivot lever 10 and the adjusting lever 11 allows the functional part 3 to swivel in a free, unhindered manner with respect to the adjusting lever 11 over the entire adjustment range of the functional part 3.

(18) The adjusting lever 11 of the illustrated and in this respect preferred item of seating furniture 1 is approximately Z-shaped and is accommodated by the end remote from the pivot lever 10 in a mount 13 or is held on a mount 13. The mount 13 is fixed on the base body 2. In this respect, the lower portion of the adjusting lever 11 and the mount 13 of the illustrated and in this respect preferred item of seating furniture 3 form a rail system which is configured such that the adjusting lever 11 can be extended upwards out of the mount 13 and then retracted again downwards into the mount 13. The functional part 3 can ultimately be moved upwards and downwards with respect to the base body 2 via the displacement of the adjusting lever 11.

(19) The mount 13 is also connected to the guide means 7 of the lift setting mechanism 5, the guide means 7 being linked swivelably to the mount 13. Alternatively, the guide means 7 could also be directly linked to the base body 2, although this connection would possibly be less stable.

(20) A lever connection 14 between the pivot lever 10 and the base body 2 is used to pivot the functional part 3 with respect to the base body 2. This lever connection 14 engages as a pivot joint on the pivot lever 10 adjacently to the pivot connection 12 between the pivot lever 10 and the adjusting lever 11, more specifically when the functional part 3 has been pivoted back, both in the horizontal direction and in the vertical direction at a distance from the pivot joint between the pivot lever 10 and the adjusting lever 11. The specified directions of vertical and horizontal are understood for the seating furniture 1 which has been set down on flat horizontal ground. Thus, the engagement point of the lever connection 14 on the pivot lever 10 is on the one hand offset downwards with respect to the pivot joint of the pivot lever 10 with the adjusting lever 11 and on the other hand is offset backwards with respect to the free end of the pivot lever 10 or of the functional part 3.

(21) The lever connection 14 between the pivot lever 10 and the base body 2 comprises the steering lever 8, a control lever 15 and a compensating lever 16. Further levers or the like would be possible, but should generally be avoided from a construction point of view. In the illustrated and in this respect preferred seating furniture 1, the steering lever 8 is respectively connected to the pivot lever 10 and to the control lever 15 by a pivot connection 17 in the form of a pivot joint.

(22) The steering lever 8 substantially extends on the back of the adjusting lever 11. The steering lever 8 is also swivelably connected to the control lever 15 by a connection 17 in the form of a pivot joint. The same connection 18 is provided at the other end of the control lever 15 to couple the control lever 15 to a compensating lever 16 which, in for its part, is fixed pivotably on the mount 13 of the adjusting lever 11. In principle, it could also be possible to dispense with the compensating lever 16. However, in the present case, the compensating lever 16 allows a relatively convenient adjustment path of the functional part 3 and is fixed to the mount 13 by the pivot connection 19.

(23) The control lever 15 is connected to the adjusting lever 11 between its connections 17, 18 to the compensating lever 16 on the one hand and to the steering lever 8 on the other. In the illustrated and in this respect preferred seating furniture 1, the control lever 15 is connected to the adjusting lever 11 by a pivot connection 20 in the form of a pivot joint. Therefore, when the adjusting lever 11 is moved, the control lever 15 is pivoted and thereby moves the steering lever 8 upwards or downwards, depending on the movement of the adjusting lever 11. As a result, the steering lever 8 pivots the pivot lever 10 together with the functional part 3 forwards and backwards about the pivot connection 12 of the pivot lever 10 to the adjusting lever 11.

(24) The mode of operation of the seating furniture 1 shown in the drawing is as follows:

(25) The swiveled-back position of the functional part 3 according to FIGS. 1 and 3 can be considered as the starting state. The functional part 3 can be pivoted up out of this position, and this results in the lug 6 of the lift setting mechanism 5 being moved out of the guide means 7 of the lift setting mechanism 5, which guide means is configured in the illustrated and in this respect preferred seating furniture 1 in the form of a housing, particularly in the form of a closed housing to protect against soiling.

(26) In this respect, the steering lever 8 is moved upwards, swiveling the pivot lever 10 with respect to the adjusting lever 11 about the common pivot axis between pivot lever 10 and adjusting lever 11 into a relatively upright position. Furthermore, the steering lever 8 entrains upwards the end of the control lever 15, connected to the steering lever 8. This results in the adjusting lever 11 being raised via the connection 20 between the control lever 15 and the adjusting lever 11. The adjusting lever 11 is moved upwards in that it is drawn upwards partly out of the mount 13 due to the rail system formed with the mount 13. The upwards movement of the adjusting lever 11 results in a corresponding upwards movement of the functional part 3 which is pivoting in the course of this.

(27) The pivot fitting 4 can be brought out of its upper end position which is shown in FIGS. 2 and 4 into the lower end position again, shown in FIGS. 1 and 3. For this purpose, the steering lever 8 is moved downwards. The steering lever 8 ensures a pivoting movement of the functional part 3 into the rearward position via the coupling with the pivot lever 10. The steering lever 8 also pivots the control lever 15 downwards, the control lever 15 thereby moving the adjusting lever 11 downwards. The lower portion of the adjusting lever 11 is increasingly accommodated in the mount 13 on the base body 2. The control lever 15 thus moves the functional part 3 downwards.

(28) The functional part 3 can only be moved back into the other end position or starting position according to FIGS. 1 and 3 out of the end position shown in FIGS. 2 and 4. However, the functional part 3 cannot be pivoted back from an intermediate position, or it can only be pivoted back slightly in any case in the corresponding direction, because this movement is then blocked by the lift setting mechanism 5. In this case, a clamping action is generated between the lug 6 and the guide means 7 of the lift setting mechanism 5. The corresponding clamping forces ensure that the lug 6 cannot be moved further into the guide means 7. Consequently, the pivot fitting 4 also cannot be pivoted further into the starting position according to FIGS. 1 and 3. Thus the functional part 3 is locked in the corresponding position, even if the user loads said functional part 3. Thus the functional part 3 is prevented from accidentally pivoting back. The situation is different only if the functional part 3 initially moves into the swiveled-up end position and as a consequence thereof, the lug 6 of the lift setting mechanism 5 is substantially fully extended with respect to the guide means 7.

(29) If the functional part 3 is configured as a foot part or as an armrest, unlike the case in the illustrated item of seating furniture 1, the pivot fitting 4 and lift setting mechanism 5 are preferably configured analogously with respect to the functional part 3 and to the base body 2 which can then be provided by a seat, a frame or part of a frame, such as a side part. However, the arrangement and orientation of pivot fitting 4 and lift setting mechanism 5 in the seating furniture 1 can then differ and can be adapted to the connection of the functional part 3 to the base body 2 and to the operation and desired adjustment of the functional part 3.

(30) The mode of operation of the lift setting mechanism 5 and thereby its effect with regard to the pivot of the pivot fitting 4 of the illustrated and in this respect preferred seating furniture 1 will be described in more detail with reference to FIGS. 5 to 12.

(31) FIG. 5 is a perspective view of the lift setting mechanism 5. The lift setting mechanism 5 comprises a respective continuous opening 20 at the rear end of the guide means 7, configured as a housing, and at the front end of the lug 6. The lift setting mechanism 5 is mounted pivotably on the pivot fitting 4 by the openings 20. In the illustrated and in this respect preferred seating furniture 1, the lug 6 is substantially strip-shaped, but it could also be rod-shaped, for example. The guide means 7 of the lift setting mechanism 5 also preferably has a corresponding, rectangular cross section. Furthermore, the guide means 7 is configured as a substantially closed housing to protect against soiling.

(32) In FIGS. 6A and 6B, the lift setting mechanism 5 is shown in two sectional views, positioned vertically to one another in a partly extended position. The lug 6 has a tapering inner end 21. This end 21 forms, corresponding to the two narrow sides of the lug 6, two outer surfaces 22 which extend obliquely to the opposite inner sides 23 of the guide means 7 which, in the illustrated and in this respect preferred lift setting mechanism 5, are oriented parallel to one another and parallel to the extension direction of the lug 6. Correspondingly formed between the obliquely extending surfaces 22 of the lug 6 and the opposite inner sides 23 of the guide means 7 are clamping gaps 24 which accommodate clamping elements 25. In the illustrated and in this respect preferred lift setting mechanism 5, the surfaces 22 forming the clamping gaps 24 are flat and the clamping elements 25 have a cylindrical shape.

(33) If the lug 6 is pressed into the guide means 7 from the position shown in FIG. 6A, the lift setting mechanism 5 is blocked because the clamping elements 25 on both sides of the lug 6 become wedged in the clamping gaps 24 provided there. In this respect, the clamping elements 25 can absorb high clamping forces so that the lug 6 is securely fixed with respect to the guide means 7.

(34) In the illustrated and in this respect preferred lift setting mechanism 5, the clamping elements 25 are held in a clamping slide 26 which for its part is held on the lug 6. The clamping slide 26 is formed in two parts and engages around the lower end of the lug 6. In this respect, fingers 27 of the clamping slide engage in a slot 28 or enlarged hole in the lug 6 in order to mount the clamping slide 26 such that it is slightly displaceable with respect to the lug 6. The clamping slide 26 also has on two mutually opposite sides friction tabs 29 which rest on the inner sides 23 of the guide means which cooperate with the clamping elements 25. The static friction generated thereby ensures that the clamping slide 26 tends to retain its position if the clamping slide 26 is freely displaceable with respect to the lug 6.

(35) In the extension direction, lateral noses 30 of the lug 6 and the guide means 7 form corresponding stop surfaces which together form an end stop 31 for the lug 6 and prevent the lug 6 from being further extended out of the guide means 7. The pivot fitting 4, connected to the lift setting mechanism 5 is thereby also prevented from being moved further.

(36) If the lug 6 is extended further out of the guide means 7 from the position shown in FIG. 6A, the lift setting mechanism 5 arrives in the position shown in FIG. 7 in which the lug 6 has almost been extended out of the guide means 7 to an end position. Consequently, the clamping slide 26 which rests on the pin 32 of the lug 6 has been moved as far as an end stop 33 for the clamping slide 26. This end stop 33 restricts the further displacement of the clamping slide 26 in the extension direction of the lug 6.

(37) When the lug 6 is then extended further out of the guide means 7 into the position shown in FIG. 8, the pins 32 of the lug 6 slide past the tab-shaped connection elements 34 of the clamping slide 26, after which the connection elements 34 engage behind the pins 32 and thus form a separate connection between the lug 6 and the clamping slide 26. In this respect, the pins 32 are accommodated in corresponding seats 35 in the clamping slide 26. This is shown in particular in FIG. 4. The clamping slide 26 is now connected to the lug 6 in a position in which the clamping elements 25 cannot pass in a clamping manner into the clamping gaps 24. Therefore, the lug 6 can be inserted into the guide means 7 without expending a great amount of force.

(38) To release the separate connection between the clamping slide 26 and the lug 6 again, the lug 6 has to be moved into a starting position with respect to the guide means 7. The pins 32 of the lug 6 then engage in a free space 36 in the base 37 of the guide means 7. Before the lug 6 reaches this starting position, the clamping slide 26 comes into contact with the base 37 of the guide means 7. In this way, the base 37 forms an initial stop 38 for the clamping slide 26. The clamping slide 26 is held in this position while the lug 6 can be moved further into the guide means 7. In this respect, the pins 32 of the lug 6 are pressed past the connection elements 34 of the clamping slide 26 and the positive locking connection between the lug 6 and the clamping slide 26 is released. The pins 32 of the lug 6 are then no longer accommodated in the corresponding seats 35 in the clamping slide 26. The lug 6 can thus be partly extended again and, in so doing, it can entrain the clamping slide 26 in order to again counteract a renewed insertion of the lug 6 in the corresponding position. In order to be able to move the lug 6 into the guide means 7 in the starting position again, the lug 6 must firstly be extended again as far as the end position, as described, in order to thus fix the clamping slide 26 on the lug 6 by the separate locking connection.

(39) FIGS. 9 and 10 show an alternative lift setting mechanism 5. This lift setting mechanism differs from the lift setting mechanism 5 of FIGS. 5 to 8 only by the configuration of the base 37 and it is also shown in a longitudinal sectional view.

(40) The base 37 of the lift setting mechanism 5 has two edge elements 38 of the guide means 7 which are pressed inwards and provide the stop surfaces 39 oriented in the extension direction. The stop surfaces 39 form an initial stop 40 for the clamping slide 26. Instead of inwardly pressed edge elements 38 of the guide means 7, the stop surfaces 39 could also be provided by another stop element.

(41) When the lug 6, connected to the clamping slide 26 by the separate connection which has already been described, is inserted in the direction of its starting position with respect to the guide means 7, the clamping slide 26 firstly arrives at an initial stop 40 defined by the stop surfaces 39. The clamping slide 26 is held in this position, while the lug 6 can be inserted further with respect to the guide means 7. Due to the corresponding relative movement between the lug 6 and the clamping slide 26, the pins 32 of the lug 6 are pressed past the connection elements 34 of the clamping slide 26 out of the seat 35 thereof and in so doing, the separate connection between the clamping slide 26 and the lug 6 is released. Nevertheless, the clamping slide 26 is still held on the lug 6 in a further displaceable manner with respect to the lug 6 so that on the one hand, the lug 6 can be extended again and on the other hand the clamping elements 25 continuously prevent the lug 6 from being accidentally pushed back with respect to the guide means 7, as has basically already been described. The releasable connection between the lug 6 and the clamping slide 26 is also connected during the extension of the lug 6 with respect to the guide means 7 as previously described.

(42) In the illustrated and in this respect preferred item of seating furniture 1, in which the functional part 3 is configured as a head part and the base body 2 is configured as a backrest, the pivot fitting 4 and the lift setting mechanism 5 are oriented substantially vertically. However, it is also possible for the pivot fitting and the lift setting mechanism to be oriented horizontally, more specifically in particular when the functional part is in the form of a foot part and the base body is in the form of a seat. For example the functional part can then be pivoted out of a lower more vertical position into an upper more horizontal position and back.

(43) FIGS. 11 and 12 show a pivot fitting 50 without seating furniture. Instead of a lift setting mechanism, the pivot fitting 50 has a locking joint 51 which interconnects the pivot lever 10 and the adjusting lever 11. In this respect, the same components have been provided with the same reference numerals. The locking joint 51 has a toothed ring 52 which is connected for co-rotation with the pivot lever 10. Fixed on the adjusting lever 11 is a locking mechanism 53 which has teeth 54 corresponding to the toothed ring 52. The locking mechanism 53 is pretensioned by a spring and therefore engages by its teeth 54 into the teeth 55 of the toothed ring 52. The flanks of the teeth of the tooth systems 54, 55 are configured such that the toothed ring 52 can slide on the locking mechanism 53 when the pivot lever 10 is swiveled in the direction of the swiveled-up position. The teeth 55 of the toothed ring 52 then press the locking mechanism 53 outwards so that the toothed ring 52 is rotated tooth by tooth with respect to the locking mechanism 53 and the locking mechanism 53 engages continually in the toothed ring 52. For this purpose, the flanks which slide on one another are inclined towards the periphery of the toothed ring 52. If the pivot lever 10 is pressed in the opposite direction, flanks of the corresponding tooth systems 54, 55 which are oriented more steeply with respect to the periphery of the toothed ring 52 come to rest against one another. Therefore, the locking mechanism 53 locks the toothed ring 52 so that the toothed ring cannot rotate further in the corresponding direction. The pivot lever 52 and the functional part connected to the pivot lever 10 are also fixed thereby. The user of the seating furniture can thus rest parts of his body against the functional part, without the functional part giving way and pivoting back.

(44) So that the pivot lever 10 can nevertheless be reset again, the illustrated and in this respect preferred pivot fitting 50 has to be pivoted into an end position, more specifically into the fully swiveled-up position of the functional part. By means (not shown), the locking mechanism 53 is then forcibly separated from the toothed ring 52 so that the toothed ring 52 can be freely rotated with respect to the locking mechanism 53, more specifically into the other end position or starting position. There, the separation of locking mechanism 53 and toothed ring 52 is reversed again and the pivot lever 10 can again pivot gradually into the swiveled-up position. The locking mechanism 53 and toothed ring 52 can be separated in that the locking mechanism 53 is pushed outwards against the spring force and is held there. This fixing is then reversed by force, for example by a stop when the starting position has been reached.

(45) The pivot fitting 50 according to FIGS. 11 and 12 otherwise operates in the same manner as described in connection with FIGS. 1 to 4, i.e. apart from the locking or fixing of the pivot lever 10 in different positions. It is also pointed out that a locking/clamping joint could also be provided. In a joint of this type, the locking mechanism and the toothed ring do not have to be separated from one another in order to reset the pivot lever into the starting position. A clamping action between the pivot lever and the adjusting lever merely has to be overcome so that the joint allows a rotation in the direction of the starting position. Nevertheless, means can be provided to produce a forced separation of locking mechanism and toothed ring and to reverse this separation again when the corresponding end positions of the pivot lever have been reached. This is not necessary anyway due to the clamping action. It is particularly effective if clamped between the pivot lever and the adjusting lever is at least one friction disc which has at least one friction surface on which an adjoining component slides while the pivot lever is pivoted in the direction of the starting position.