Adjustment device and adjusting element for a leg support

Abstract

The invention relates to an adjustment device for setting a defined position of a leg rest of seating and / or reclining furniture, which can be reversibly adjusted from an operating position to a non-operating position and back again via a leg rest fitting, wherein the leg rest is held on a pivotable swivel arm of the leg rest fitting, comprising an adjustment element with a flat first contact surface and with a flat second contact surface parallel to the first contact surface, with a circumferential surface connecting the contact surfaces, with an elongated opening, wherein the circumferential surface has a first contact surface area that is shaped at least partially corresponding to the swivel arm and inclined with respect to a longitudinal axis of the opening, further comprising a releasable connecting means by means of which the adjustment element is adjustably held on the leg rest fitting.wherein in a first mounting position of the adjustment element the connecting means is fixed to the leg support fitting and guided through the opening of the adjustment element, wherein in the non-use position of the leg support a defined orientation of the leg support relative to the leg support fitting can be set by means of a rotational and / or translational adjustment of the adjustment element, and wherein the first bearing surface of the adjustment element is pressed against the leg support fitting such that the first contact surface area of ​​the circumferential surface is pressed against the swivel arm and a weight force of the leg support and the swivel arm is supported by the adjustment element. The invention further relates to an adjustment element.

Description

[0001] The invention relates to a legrest fitting with an adjustment device for setting a defined position of a legrest of a piece of seating and / or reclining furniture, which legrest can be reversibly adjusted from a use position to a non-use position and back again via the legrest fitting. The legrest is held on a pivot arm of the legrest fitting that is pivotably connected to a frame. Furthermore, the invention relates to an adjustment element.

[0002] DE 20 2010 002 820 U1 discloses a leg rest fitting for a leg rest for a piece of seating and / or reclining furniture that can be reversibly adjusted from a use position to a non-use position and back again. To hold the leg rest in a defined position when not in use, the leg rest fitting has a holding device. The holding device comprises a holding body attached to a frame of the leg rest fitting and a holding element that interacts with the holding body and is coupled to a leg rest support of the leg rest fitting. When not in use, the leg rest is held in a precisely defined position by the holding body being held in a holding section of the holding element. Nevertheless, the defined position of the leg rest relative to the frame or to the other components of the leg rest fitting is not adjustable.Rather, the leg rest is always held in the same position when not in use.

[0003] US 5,482,350 A discloses an adjustment device of the type mentioned above with an adjustment element. The adjustment element has an asymmetrical shape and a C-shaped cross-section with a flat segment having two flat contact surfaces and two legs projecting from the flat segment at right angles to the same side. The flat segment is pivotally connected to a pivot arm of a leg rest fitting via a first contact surface facing away from the legs. The legs and a second contact surface of the flat segment facing the legs encompass one leg of the frame. A slotted hole oriented perpendicular to the legs is provided in the flat segment for the passage of a screw.The adjustment element can be moved translationally along a longitudinal axis of the slot-shaped opening and, when the screw is loosened, a defined orientation of the leg rest in relation to the frame of the leg rest fitting can be set via this displacement in the non-use position of the leg rest.

[0004] DE 202 10 335 U1 discloses an adjustment device of the type mentioned above, wherein the adjustment element is formed as part of a two-part support of the leg rest. The leg rest fitting is designed here as a positively guided scissor kinematics. The adjustment element has two congruent, opposite, flat contact surfaces, a circumferential surface connecting the contact surfaces all the way around, and two parallel, slot-shaped openings. Since the circumferential surface has a single, flat first contact surface area inclined to the longitudinal axes of the openings, the adjustment element has an asymmetrical shape with respect to the longitudinal axes of the openings. The adjustment element itself has no contact with the scissor arms. A second contact surface of the adjustment element is attached to another part of the support, which is articulated to the scissor arms of the leg rest fitting.The remaining part of the support and the adjustment element are adjustably connected to each other via detachable fasteners that pass through the slotted holes in the adjustment element. This allows a defined orientation of the leg rest relative to the frame of the leg rest fitting to be adjusted by translating the adjustment element along the slotted holes when the fasteners are released.

[0005] The object of the present invention is therefore to provide a means which enables an adjustable, defined position of a leg rest which is adjustably held on a leg rest fitting.

[0006] To achieve this object, the invention has the features of patent claim 1.

[0007] The particular advantage of the invention is that by rotating or translating the adjustment element held in the installed position, the first contact surface area can be rotated or translated, and the pivot arm resting against the first contact surface area when the leg rest is not in use is adjusted accordingly. In this way, the orientation of the leg rest relative to the frame of the leg rest fitting can be easily adjusted. To adjust the first contact surface area of ​​the adjustment element, the connecting means attached to the leg rest fitting in the installed position must be released. The adjustment element can thus be rotated about a connecting means longitudinal axis of the connecting means or translated along the longitudinal axis of the opening.

[0008] The core concept of the invention is that the adjustment element represents an adjustable pivot stop for at least one pivot arm of the pivot unit, to which the pivot arm is attached when the leg rest is not in use. Adjusting the adjustment element thus causes a corresponding pivoting of the pivot arm when the leg rest is not in use, allowing a defined position of the leg rest to be set in the non-use position.

[0009] According to a preferred embodiment of the invention, in the first mounting position, the first contact surface area of ​​the adjustment element is positioned against the outer side of a pivot arm end of the pivot arm opposite the leg rest and / or below a pivot axis provided in the pivot arm end, via which the pivot arm is pivotably supported relative to the frame of the leg rest fitting. Thus, in this mounting position of the adjustment device, the weight of the pivot unit is supported on the first contact surface area of ​​the adjustment element when the leg rest is not in use.

[0010] According to a further development of the invention, in a second mounting position of the adjustment element, the adjustment element is held on the leg rest fitting rotated by 180° with respect to the longitudinal axis of the opening, in contrast to the first mounting position. Furthermore, a second contact surface area of ​​the circumferential surface of the adjustment element, opposite the first contact surface area and shaped at least partially to correspond to the pivot arm and inclined with respect to a longitudinal axis of the opening, is applied to the pivot arm in the non-use position of the leg rest. The adjustment element can therefore function as a pivot stop for the pivot arm, optionally in the first or second mounting position.This simplifies the installation of the adjustment element and makes it less prone to errors, since both the first contact surface (in the first mounting position) and the second contact surface (in the second mounting position) can be placed on the leg rest fitting.

[0011] Advantageously, the adjustment element has a second contact surface region in the peripheral surface, which is opposite the first contact surface region. In this respect, it can be provided that the first contact surface region is shaped for a first defined position of the leg rest in the non-use position, which is adjustable in the first mounting position of the adjustment device, and that the second contact surface region is shaped for an alternative second defined position, which is adjustable in the second mounting position of the adjustment device.

[0012] According to a further development of the invention, the connecting means is a screw or a threaded bolt, wherein the adjustment element is secured in the first mounting position and / or the second mounting position by a screw nut screwed onto the threaded bolt. Such detachable connecting means are advantageously available as cost-effective and readily available standard components that can be installed in a simple and known manner.

[0013] In order to fix the adjustment element in the mounting position with a high surface pressure on the leg rest fitting, while maintaining the inventive idea, it can be provided that a washer or the like is provided between the leg rest fitting and the contact surface facing the same or between a screw head or a screw nut and the contact surface facing the same.

[0014] In a mounting position of the adjustment element on the leg rest fitting for the reversibly adjustable leg rest, the first contact surface area of ​​the adjustment element serves as a pivot stop for at least one pivot arm of the leg rest fitting in the non-use position of the leg rest. The aperture of the adjustment element is provided for the passage of a connecting means, via which the adjustment element can be secured to the leg rest fitting in the mounting position. Furthermore, the adjustment element can be moved in a defined translational manner along the longitudinal axis of the slot-shaped aperture.

[0015] According to the invention, the contact surfaces are congruent. The adjustment element can thus be manufactured particularly cost-effectively. The congruent contact surfaces also promote a beneficial symmetrical shape for the adjustment element.

[0016] The adjustment element has a symmetrical shape with respect to the longitudinal axis of the opening such that the circumferential surface has a second contact surface area that is a mirror image of the first contact surface area. Accordingly, contact surface areas that are straight in cross-section form a V-shaped adjustment element cross-section of the adjustment element. The symmetrical shape simplifies the assembly of the adjustment element, and both the first contact surface area and the second contact surface area can function as a pivot stop against which the pivot arm rests when the leg rest is not in use. According to a further development of the invention, the opening opens internally into the contact surfaces, or the contact surfaces completely enclose the opening. It is therefore provided that the opening has the shape of a completely bordered elongated hole.In this respect, an edge is formed between the opening designed as an elongated hole and the circumferential surface. Two end positions can advantageously be defined in the elongated hole, between which an adjustment range is formed, in which the adjustment element can be translationally adjusted with respect to the leg rest fitting and the connecting means in the mounting position to set a defined orientation of the leg rest with respect to the leg rest fitting. Furthermore, the adjustment element is held to the leg rest fitting by the fully bordered elongated hole even when the connecting means is not fully tightened and is slightly loosened, without the possibility of becoming detached and thus lost or damaged.

[0017] Throughout this description, the position specifications above, below, front, rear, and the like always refer to the leg rest fitting in an installed position in which it is mounted on the frame of the seating and / or reclining furniture on a side opposite the seat part, with the seating and / or reclining furniture supported on a floor by feet. The position specifications above and below refer to the vertical distance from the floor. Above means a position away from the floor, below means a position closer to the floor.

[0018] Further advantages, features, and details of the invention can be derived from the further subclaims and the following description. Features mentioned therein may be essential to the invention individually or in any combination. Features and details of the adjustment element described according to the invention naturally also apply in connection with the adjustment device, and vice versa. Thus, the disclosure of the individual aspects of the invention can always be referenced reciprocally. The drawings serve merely as examples to clarify the invention and are not limiting in nature.

[0019] They show: Fig. 1 a schematic perspective partial view of a seating and / or reclining furniture with a leg rest in a non-use position, Fig. 2 the seating and / or reclining furniture according to Fig. 1 with the leg rest in a position of use, Fig. 3 a plan view of the seating and / or reclining furniture according to Fig. 1 with the leg rest in the use position, Fig. 4 a top view of the seating and / or reclining furniture according to Fig. 1 with the leg rest in the non-use position, Fig. 5 a sectional view along a section line II-II through the seating and / or reclining furniture according to Fig. 4 , Fig. 6a detail A of the seating and / or reclining furniture according to Fig. 5 , Fig. 7 a first partial sectional view of the seating and / or reclining furniture according to Fig. 1 with the leg rest in an intermediate position, Fig. 8 a further partial sectional view along a section line II through the seating and / or reclining furniture according to Fig. 3 , Fig. 9 a first side view of a leg rest fitting of the seating and / or reclining furniture according to Fig. 1 with a leg rest support for the leg rest in the non-use position, Fig. 10 a first side view according to Fig. 9 opposite second side view of a leg rest fitting of the seating and / or reclining furniture according to Fig. 1 , Fig. 11a detail B of the leg rest fitting according to Fig. 10 , Fig. 12 a side sectional view of the leg rest fitting according to Fig. 9 with the leg rest support for the leg rest in the use position, Fig. 13 a detail C of the leg rest fitting according to Fig. 12 , Fig. 14 a side view of a swivel unit of the leg rest fitting held on a carriage carrier according to Fig. 10 with the leg support support for the leg support in the use position and Fig. 15 a side view of the swivel unit held on the carriage support according to Fig. 14 with the leg rest support for the leg rest in the non-use position.

[0020] In Fig. 1 A schematic perspective partial view of an embodiment of a piece of seating and / or reclining furniture 1 with a leg rest 6 in a non-use position is shown. For a simplified functional description, the piece of seating and / or reclining furniture 1 is schematically illustrated with only one foot 68 and with a frame 3 that is only partially upholstered and largely open. A substantially horizontally oriented upholstered seat part 66 and a vertically inclined upholstered back part 67 are supported on the frame 3. The leg rest 6 is held beneath the seat part 66 in the non-use position shown here.

[0021] Fig. 2 shows the seating and / or reclining furniture 1 with the leg rest 6 in a position of use. The leg rest 6 is opposite the Fig. 1 shown non-use position to a front side 41 in front of the seat part 66 and pivoted up to a height substantially equal to a sitting height of the seat part 66. In the use position, the leg rest 6 is slightly inclined downwards towards the front side 41.

[0022] The Fig. 3 and Fig. 4 show the seating and / or reclining furniture 1 according to Fig. 1 each in a top view. Fig. 3 a top view of the seating and / or reclining furniture 1 with the leg rest 6 in the position of use. Fig. 4 shows a plan view of the seating and / or reclining furniture 1 with the leg rest 6 placed under the seat part 66 in the non-use position.

[0023] A reversible adjustment of the leg rest 6 from the non-use position to a use position and back is made possible via a leg rest fitting 2 held on the frame 3 of the seating and / or reclining furniture 1.

[0024] An embodiment of the leg rest fitting 2 is described below using the Fig. 5 bis Fig. 15 explained in more detail.

[0025] A sectional view along a section line II-II through the seating and / or reclining furniture 1 according to Fig. 4 with the leg rest 6 in the non-use position Fig. 5 It can be seen therein that the leg rest 6, which is attached to the leg rest fitting 2, is oriented parallel to the seat part 66 in the non-use position and is compactly moved so far below the seat part 66 that the seat part 66 projects beyond it towards the front side 41.

[0026] The Fig. 6 looks with an enlarged view in a detail A of the seating and / or reclining furniture 1 Fig. 5 on the leg rest fitting 2 and the leg rest 6 attached to it in the non-use position. The leg rest fitting 2 is held on an underside of the frame 3 of the seating and / or reclining furniture 1 opposite the seat part 66.

[0027] The leg rest fitting 2 comprises as essential main components a displacement unit 5 with a carriage 30, which can be moved translationally relative to a longitudinal member 65 of the frame 3, a pivoting unit 4 with pivoting arms 22, 23 and a leg rest support device 7, to which the leg rest 6 is fixed.

[0028] A partial sectional view of the seating and / or reclining furniture 1 according to Fig. 1 is in Fig. 7 The leg rest 6 is moved from the non-use position according to Fig. 6 into an intermediate position, which is advanced translationally toward the front side 41 via the sliding unit 5. The carriage 30 of the sliding unit 5 has been moved approximately half the length of the longitudinal member 65 of the frame 3. The leg rest 6 protrudes in sections toward the front side 41 under the seat part 66 of the seating and / or reclining furniture 1, with the leg rest 6 being oriented parallel to the seat part 66, as in the non-use position.

[0029] The carriage 30 of the displacement unit 5 is essentially designed in two parts and comprises a carriage runner 69 which is held so as to be linearly displaceable relative to the longitudinal member 65 of the frame 3 and a carriage carrier 70 which projects at least partially out of the longitudinal member 65 of the frame 3 towards a floor 42 and which is held suspended above the floor 42 on the movable carriage runner 69.

[0030] The pivot arms 22, 23 of the pivot unit 4 connect the leg rest support device 7 to the carriage 30 of the sliding unit 5. For this purpose, the pivot arms 22, 23 of the pivot unit 4 are each pivotally held on the carriage support 70 of the carriage 30 via pivot joints 14, 15, with a pivot arm end 28, 29 opposite the leg rest 6. The leg rest support device 7 is pivotally held on the carriage 30 of the sliding unit 5 via leg rest joints 18, 19, by means of leg rest ends 24, 25 of the pivot arms 22, 23 opposite the carriage 30. The pivot arms 22, 23 have a substantially C-shaped configuration, with their ends 24, 25, 28, 29 being held vertically inclined and projecting from the floor 42 in the non-use position. A central section of the pivot arms 22, 23 formed between the ends 24, 25, 28, 29 is oriented horizontally in the non-use position of the leg rest 6.

[0031] At a first pivot arm end 28 opposite the leg rest 6, the first pivot arm 22 is pivotably held on the slide support 70 via a first pivot joint 14. The first pivot arm 23 forms, in the first pivot arm end 28 above the first pivot joint 14, a lever projection 27 which engages, at least in sections, in the longitudinal member 65 of the frame 3 and which, in the illustrated embodiment of the leg rest fitting 2, forms a jagged lever projection tip 54. Furthermore, in the first pivot arm end 28 of the first pivot arm 22 above the first pivot joint 14, a recess 57 is formed which protrudes from the lever projection 27 in such a way that a substantially V-shaped pivot recess 60 is formed between the lever projection 27 and the recess 57. The function of the lever projection 27 and the recess 57 will be discussed in more detail later.

[0032] In the embodiment of the leg rest fitting 2 shown in the figure, the leg rest support device 7 has a plate-shaped leg rest support 12, to which the leg rest 6 is secured on the upper side. Furthermore, the leg rest support device 7 has a linear displacement unit formed from a longitudinally profiled support rail 8 with a rail length S and a leg rest carriage 13 that can be moved translationally relative to the support rail 8 with respect to a longitudinal axis 9 of the support rail 8. The linear displacement unit acts as a stroke extension, ensuring that the leg rest 6 is advanced into the use position relative to the pivot arm 22 or relative to the leg rest joint 18, in addition to the front side 41.This has the advantage that the pivot arms 22, 23 can be dimensioned with a reduced length, allowing the leg rest fitting 2 to be designed to be more compact and lightweight overall. Furthermore, the leg rest support device 7 provides a lever mechanism designed as a lever chain 31, which connects the leg rest carriage 13 to the first pivot arm 22. The lever chain 31 will be discussed in more detail later. The linear displacement unit of the leg rest support device 7 is fixed to a side of the leg rest support 12 opposite the leg rest 6.

[0033] A further partial sectional view according to a further section line II through the seating and / or reclining furniture 1 according to Fig. 3 is in the Fig. 8 In this case, the leg rest 6 is held in the use position. The carriage runner 69 of the carriage 30 of the displacement unit 5 has moved to a stop 62 of the frame 3 facing the front side 41. Furthermore, the pivot arms 22, 23 are opposite the Fig. 7 shown intermediate position pivoted clockwise in such a way that the leg rest 6 is held just below the seat height of the seat part 66.

[0034] According to the embodiment of the leg rest fitting 2 shown in the figure, the displacement unit 5 comprises an electromotive drive unit 71 with a spindle and an elongated aluminum profile 73 assigned to the spindle for the translational movement of the carriage 30. The carriage runner 69 of the carriage 30 or a movement block 72 of the displacement unit 5 is coupled to the aluminum profile 73 and driven via the spindle.

[0035] The Fig. 9 and Fig. 10 Each shows the leg rest fitting 2 in a single side view. The leg rest support device 7 is held in the non-use position for the leg rest 6, although the leg rest 6 is not shown.

[0036] The frame 3 has a motor 63 with a motor supply line 64 on a rear side opposite the front side 41.

[0037] The axes 16, 17, 20, 21 of the pivot joints 14, 15 and the opposite leg support joints 18, 19 are each oriented horizontally. The axes 16, 20 of the joints 14, 18 connected to the first pivot arm 22 have the same center distance as the axes 17, 21 of the joints 15, 19 connected to the second pivot arm 23. This ensures that the pivot arms 22, 23 are pivoted evenly and by the same pivoting distance during pivoting. However, the axes 16, 20 of the joints 14, 18 connected to the first pivot arm 22 are positioned offset in the horizontal direction towards the front side 41 and in the vertical direction towards the floor 42 relative to the axes 17, 21 of the joints 15, 19 connected to the second pivot arm 23. This has the effect that the leg rest 6 is held in a defined orientation during pivoting and can experience an inclination.Furthermore, when pivoting the pivot arms 22, 23, a simultaneous translational displacement of the linear displacement unit formed in the leg rest support device 7 can be realized by the first pivot arm 22 interacting with the lever chain 31 and the linear displacement unit of the leg rest support device 7 when pivoting the pivot unit 4. This interaction will be explained in more detail later.

[0038] The first pivot arm 22 forms a lever chain projection 26 at the first leg support end 24 facing the leg support 6 above the first leg support joint 18, which is held vertically inclined in the non-use position. When the pivot unit 4 pivots in the use position, the lever chain projection 26 rotates clockwise about the first joint axis 20 of the first leg support joint 18. Accordingly, the lever chain 31 connected to the lever chain projection 26 of the first pivot arm 22 is moved along with it.

[0039] The lever chain 31 is formed from three pivotally connected chain links 34, 35, 36. A first chain link 34 is pivotally attached to the leg rest support 12 of the leg rest support device 7 via a first chain joint 37 at a second lever end 32 of the lever chain 31, which is opposite the first lever end 33 towards the front side 41. The first chain link 34 is pivotally connected to a middle second chain link 35 via a second chain joint 38. A third chain link 36 is pivotally connected to the second chain link 35 via a third chain joint 39. Furthermore, the third chain link 36 has the first lever end 33 connected to the lever chain projection 26, at which it is pivotally connected to the lever chain projection 26 via a fourth chain joint 40.The chain links 34, 35, 36 of the lever chain 31 each have different lengths, with the first chain link 34 being significantly longer than the second chain link 35 and the third chain link 36. In addition, the second chain link 35 and the third chain link 36 have a bend. In the region of a bend in the second chain link 35, a fifth chain joint 46 is provided, which is fixed to the leg rest carriage 13. In the illustrated non-use position of the leg rest 6, the chain links 34, 35, 36 are pivoted compactly into one another, with the first chain link 34 and the second chain link 35 being aligned almost parallel to one another.

[0040] The leg rest joints 18, 19, via which the pivot arms 22, 23 are connected to the leg rest support device 7, are fixed in the leg rest carriage 13. The lever chain 31 thus connects the leg rest support 12 and the support rail 8 attached thereto to the first pivot arm 22, which in turn is pivotably mounted on the leg rest carriage 13 via the first leg rest joint 18. In this respect, the lever chain 31 also prevents the support rail 8 from becoming detached from the leg rest carriage 3.

[0041] The leg rest carriage 13 is designed such that, when the leg rest 6 is not in use, it can be moved in sections beyond a first rail end 10 of the support rail 8 facing the front side 41. This has the advantage that the linear displacement unit has a comparatively large leg rest displacement path X, and the support rail 8 and the leg rest carriage 13 can be designed correspondingly shorter and thus comparatively compact and lightweight. This displacement of the leg rest carriage 13 relative to the support rail 8 occurs automatically when the leg rest 6 is moved into the use position.

[0042] An adjustment device 44 is provided on the carriage support 70 of the carriage 30 of the sliding unit 5. A defined orientation for the leg rest 6 in the non-use position can be set via the adjustment device 44. Furthermore, the adjustment device 44 supports the weight of the pivot unit 4 and the leg rest 6 in the non-use position by placing the second pivot arm 23, with a second pivot arm outer side 75 opposite the leg rest 6, below the second pivot joint 15 against an adjustment element 45 of the adjustment device 44. In this respect, the adjustment element 45 functions as an adjustable pivot stop for the pivot unit 4 in the non-use position of the leg rest 6. The adjustment device 44 holds the leg rest 6 firmly above the floor 42 until the pivot unit 4 begins to pivot to adjust the leg rest 6.The adjustment device 44 is shown in a detail B of the leg rest fitting 2 according to . Fig. 10 Enlarged in a first assembly position. It includes the adjustment element 45, which is secured to the slide carrier 70 via a detachable connecting means 53.

[0043] In the illustrated embodiment, the adjustment element 45 has two congruent, opposing contact surfaces 47, wherein a first contact surface rests against the slide carrier 70 in the first assembly position. The contact surfaces 47 are connected to one another via a circumferential surface 52. Furthermore, the adjustment element 45 has a slot-shaped opening 48 with an opening length L, which opens internally into the contact surfaces 47 and through which the connecting means 53 is passed in the first assembly position. The circumferential surface 52 and the opening 48 are oriented perpendicular to the contact surfaces 47. The adjustment element 45 has a symmetrical shape with respect to a longitudinal axis 78 of the opening 48. A first contact surface region 51 formed in the circumferential surface 52 and a second contact surface region 52 formed in the circumferential surface 52 are mirror-inverted.Both contact surface areas 51, 52 have the same inclination relative to the longitudinal axis 49 of the aperture. The contact surface areas 51, 52 are aligned in a form-fitting manner with the second pivot arm outer side 75 of the second pivot arm 23. In the first assembly position, the first contact surface area 51 is positioned against the second pivot arm outer side 75 of the second pivot arm 23.

[0044] Since the adjustment element 45 is symmetrical in the illustrated embodiment, it can also be held on the slide support 70 in an alternative, not shown, second mounting position. In this case, the adjustment element is rotated by 180° with respect to the opening longitudinal axis 48 compared to the first mounting position. The connecting means 53 is, as usual, passed through the opening 48 of the adjustment element 45 and fixed to the slide support 70 of the displacement unit 5. A second contact surface 47 bears against the slide support 70. The second contact surface region 52, analogous to the first contact surface region 51, is applied to the second pivot arm outer side 75 of the second pivot arm 23 in the first mounting position.

[0045] In the present embodiment, the detachable connecting means 53, which secures the adjustment element 45 to the slide support 70, is designed as a screw. The connecting means 53 is firmly tightened in the first and second mounting positions of the adjustment device 44.

[0046] To adjust the orientation of the leg rest 6 in the non-use position, the connecting means 53 can be released. The adjustment element 45 can then be translated along the opening 48. Since the contact surface areas 51, 52 applied to the second pivot arm 23 in the non-use position of the leg rest 6 are inclined to the opening longitudinal axis 48, a translational displacement of the adjustment element 45 along the opening longitudinal axis 48 causes a displacement of the contact surface areas 51, 52 towards the front side 41 or in the opposite direction away from the front side 41. In the embodiment according to the Fig. 10 and Fig. 11 A downward displacement of the adjustment element 45 along the longitudinal axis 78 of the opening causes a displacement of the first contact surface region 51 towards the front side 41. Accordingly, this adjustment of the adjustment element 45 causes the first pivot arm 23 to be held in a slightly clockwise position in the non-use position of the leg rest 6, whereby a slightly raised non-use position is established for the leg rest 6. A reverse upward displacement of the adjustment element 45 along the longitudinal axis 78 of the opening recursively causes the leg rest 6 to be slightly lowered in the non-use position. Alternatively, the adjustment element 45 can also be adjusted to align the leg rest 6 in the non-use position by rotating it about a shaft axis of the connecting means 53.

[0047] Fig. 12 shows the design of the leg rest fitting 2 according to Fig. 9 in a side sectional view. For this purpose, the carriage 30 of the displacement unit 5 is moved up to the front stop 62 of the frame 3, and the pivot arms 22, 23 of the pivot unit 4 are pivoted upwards in a clockwise direction.

[0048] In the use position of the leg rest 6, the lever chain projection 26 of the first pivot arm 22 has been pivoted clockwise toward the rear side opposite the front side 41 compared to the non-use position of the leg rest 6. As a result, the lever chain 31 has been pivoted apart or stretched, whereby the leg rest carriage 13 has been moved along the longitudinal rail axis 9 of the support rail 8 to the second rail end 11 of the support rail 8 opposite the front side 41.

[0049] The lever projection 27 formed in the first pivot arm end 28 of the first pivot arm 22 has a contact surface 55 facing the leg rest 6. The contact surface 55, in interaction with a deflection element 61 held on the frame 3, acts as a triggering device which, depending on a position of the carriage 30 of the displacement unit 30, triggers a defined and automatic pivoting of the pivot arms 22, 23 simultaneously with the movement of the carriage 30. The deflection element 61 has an annular cross-section and is positioned behind the stop 62 with respect to the front side 41. The lever projection is held at a vertical height such that it engages with the deflection element 61 when the carriage 30 is moved. The contact surface 55 is designed as a run-on slope and is oriented approximately vertically when the leg rest 6 is in use and inclined to the vertical when the leg rest 6 is not in use.The pivot arms 22, 23 pivot upwards as soon as the carriage 30 of the displacement unit 5 has moved far enough toward the front side 41 that the contact surface 55 engages the deflection element 61. The further the first pivot axis 16 of the first pivot joint 14, held on the carriage 30, is moved toward a position toward the front side 41 in front of the deflection element 61, the more the first pivot arm 22 rotates clockwise via the lever projection 27, thereby raising the leg rest 6. The use position of the leg rest 6 is reached as soon as the carriage 30 has moved out to just before the stop 62 of the frame 3. The weight of the leg rest 6 and the leg rest support device 7 constantly presses the contact surface 55 against the deflection element 61 during the pivoting movement, thus preventing the leg rest 6 from pivoting downwards unintentionally.Rather, pivoting down of the pivot arms 22, 23 is only possible if the carriage 30 of the displacement unit 5 is moved back relative to the front side 41.

[0050] Figur 13 looks at an enlarged detail C of the leg rest fitting 2 Fig. 12 onto the lever projection 27 and the deflecting element 61, wherein the leg rest support 12 is moved to a position for the leg rest 6 in the use position. The contact surface 55 is in contact with the deflecting element 61. A lever projection surface 56, which is angularly opposite the contact surface 55, forms the jagged lever projection end 54 with the contact surface 55. In the illustrated embodiment of the leg rest fitting 2, the formation 57 is cam-shaped and has an auxiliary contact surface 58, which is angularly opposite the contact surface 55, as well as a surface 59 facing the leg rest. The auxiliary contact surface 58 and the contact surface 55 together form the V-shaped pivot recess 60, which surrounds the deflecting element 61 when the pivot arms 22, 23 pivot.

[0051] The auxiliary contact surface 57 is spaced apart from the deflection element 61 when the pivot arms 22, 23 are pivoted for reversibly adjusting the leg rest 6 from the non-use position to the use position. It is provided as a safety device, particularly in the event that an obstacle is located beneath the leg rest 6 when the leg rest 6 is moved from the use position back to the non-use position (blocking situation). In this case, the contact surface 55 initially detaches from the deflection element 61, and the auxiliary contact surface 58 then contacts the deflection element 61. As the carriage 30 of the displacement unit 5 continues to retract, the auxiliary contact surface 58 functions as an auxiliary guide slope along which the first pivot arm 22 is moved against the deflection element 61.In this way, the swivel unit 4 is forced to pivot downwards, which prevents the leg rest 6 from moving against the seat cushion 66 and causing damage to the leg rest fitting 2 or to the seating and / or reclining furniture 1.

[0052] Finally, the Fig. 14 and Fig. 15 in a side view, the swivel unit 4, which is pivotably held on the carriage carrier 70 of the carriage 30 of the displacement unit 5, with the swivel arms 22, 23 and the leg support device 7 held thereon. The swivel unit 7 is in Fig. 14 swung up to hold the leg rest 6 in the position of use. In Fig. 15 the leg rest support device 7 for the leg rest 6 is held in the non-use position.

[0053] The invention is not limited to the illustrated embodiment of the subject matter of the invention, but can be modified within the scope of the appended claims.

[0054] The leg rest fitting 2 is not limited to the described drive unit 71 with the profile 73 and the spindle for moving the carriage 30. In principle, other known linear drive units for moving the carriage 30 can also be integrated into the longitudinal member 65 of the frame 3. For example, this can be a belt drive or an electric cylinder.

[0055] Identical components and component functions are identified by the same reference symbols.

Claims

1. A leg rest fitting (2) having an adjustment device (44) for setting a defined location of a leg rest (6) of a piece of seating and / or reclining furniture (1), which leg rest is reversibly shiftable from a use position into a non-use position and back via the leg rest fitting (2), wherein the leg rest (6) is held on a pivot arm (22, 23) of the leg rest fitting (2), which pivot arm is pivotably connected to a frame (3), comprising an adjustment element (45) having a plane first abutment surface and having a plane second abutment surface (47) opposing the first abutment surface in parallel, having a circumferential surface (50) circumferentially connecting the abutment surfaces (47), having an opening (48) in the form of an elongated hole, wherein the circumferential surface (50) has a first contact surface region (51) which is in any case sectionally shaped in a manner corresponding to the pivot arm (22, 23) and which is inclined and plane in relation to an opening longitudinal axis (49) of the opening (48), wherein the abutment surfaces (47) are congruently opposed to one another and wherein the adjustment element (45) has a symmetrical configuration in relation to the opening longitudinal axis (49) of the opening (48) in such a way that the circumferential surface (50) has a plane second contact surface region (52) opposing the first contact surface region (51) in a mirrorinverted manner, further comprising a releasable connecting means (53) via which the adjustment element (45) is shiftably held on the leg rest fitting (2), wherein, in a first mounting position of the adjustment element (45), the connecting means (53) is fixed to the leg rest fitting (2) and is guided by the opening (48) of the adjustment element (45), wherein, in the non-use position of the leg rest (6), a defined orientation of the leg rest (6) in relation to the frame (3) of the leg rest fitting (2) is settable via a rotational and / or translational shifting of the adjustment element (45) and wherein the first abutment surface of the adjustment element (45) is placed against the leg rest fitting (2) in such a way that the first contact surface region (51) of the circumferential surface (50) is placed against the pivot arm (22, 23) and a weight force of the leg rest (6) and of the pivot arm (22, 23) is supported by the adjustment element (45), wherein, as a result of the rotational and / or translational shifting of the adjustment element (45) held in the mounting position, the first contact surface region (51) is rotatable and / or displaceable and in this respect the pivot arm (22, 23) being placed against the first contact surface region (51) in the non-use position of the leg rest (6) is correspondingly shifted and wherein, for the shifting of the first contact surface region (51), the connecting means (53) is easy to release and thus the adjustment element (45) is rotatable about a connecting means longitudinal axis of the connecting means (53) and / or translationally displaceable along the opening longitudinal axis (49) of the opening (48).

2. The leg rest fitting (2) having an adjustment device (44) according to claim 1, characterized in that, in the first mounting position, the first contact surface region (51) of the adjustment element (45) is placed against a pivot arm outer side (75) of a pivot arm's (23) pivot arm end (29) opposing the leg rest (6) and / or below a pivot axis (17), which is provided in the pivot arm end (29), via which the pivot arm (23) is held pivotably in relation to the frame (3) of the leg rest fitting (2).

3. The leg rest fitting (2) having an adjustment device (44) according to claim 1 or 2, characterized in that, in a second mounting position of the adjustment element (45), the adjustment element (45), deviating from the first mounting position, is held on the leg rest fitting (2) rotated by 180° in relation to the opening longitudinal axis (49) of the opening (48) and in that, in the second mounting position, a second contact surface region (52) of the circumferential surface (50) of the adjustment element (45), which is opposed to the first contact surface region (51) and is in any case sectionally shaped in a manner corresponding to the pivot arm (22, 23) and is inclined in relation to an opening longitudinal axis (49) of the opening (48), is placed against the pivot arm (22, 23) in the non-use position of the leg rest (6).

4. The leg rest fitting (2) having an adjustment device (44) according to any of claims 1 to 3, characterized in that the connecting means (53) is a screw or in that the connecting means (53) is a threaded bolt, wherein the adjustment element (45), in the first mounting position and / or the second mounting position, is fixed via a screw nut screwed onto the threaded bolt.

5. The leg rest fitting (2) having an adjustment device (44) according to any of claims 1 to 4, comprising two plane abutment surfaces (47) opposing each other in parallel, comprising a circumferential surface (50) circumferentially connecting the abutment surfaces (47) and comprising an opening (48) in the form of an elongated hole, wherein the circumferential surface (50) has a first contact surface region (51) inclined in relation to an opening longitudinal axis (49) of the opening (48).

6. The leg rest fitting (2) having an adjustment device (44) according to claim 5, characterized in that the first contact surface region (51) and / or the second contact surface region (52) of the circumferential surface (50) is oriented perpendicularly to the abutment surfaces (47).

7. The leg rest fitting (2) having an adjustment device (44) according to claim 5 or 6, characterized in that a boundary surface of the opening (48) and / or the circumferential surface (50) is oriented perpendicularly to the abutment surfaces (47).

8. The leg rest fitting (2) having an adjustment device (44) according to any of claims 5 to 7, characterized in that the abutment surfaces (47) completely enclose the opening (48).

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