EP3850992A1 - Leg support lining - Google Patents

Abstract

The invention relates to a legrest fitting for the reversible adjustment of a legrest of a piece of furniture for sitting and / or reclining from a position of use into a non-use position and back, comprising a displacement unit with a slide that can be moved translationally in a frame and comprising a swivel unit with a first swivel arm, the legrest on a first legrest end of the first swivel arm and wherein the first swivel arm is pivotably connected to the slide of the displacement unit at a first swivel arm end opposite the legrest via a first swivel joint rotatable about a first swivel axis, the first swivel axis in the first swivel arm end of the first swivel arm of the first swivel joint on a rear side opposite the legrest and on a top side opposite a floor, in any case protruding in sections, with a lever protrusion designed as a run-on bevel formed contact surface and an auxiliary contact surface protruding over the top and opposite the contact surface is formed in any case, the first pivot axis of the first pivot joint, the auxiliary contact surface and a surface facing the leg rest forming a recess in the first pivot arm end of the first pivot arm and whereby the leg rest is used to move the leg rest From the non-use position to the use position, the swivel arms rotate around the swivel joints by moving the slide of the displacement unit towards a front side in the frame in such a way that the contact surface of the lever protrusion of the first swivel arm against a stationary deflection element of the frame and the first swivel axis towards the front side is moved in front of the deflecting element that a weight of the pivot unit is supported on the deflecting element of the frame and that the auxiliary contact surface is kept at a distance from the deflecting element of the frame.

Description

The invention relates to a legrest fitting for the reversible adjustment of a legrest of a piece of furniture for sitting and / or reclining from a position of use into a non-use position and back, comprising a displacement unit with a slide that can be moved translationally in a frame and comprising a swivel unit with a first swivel arm, the legrest on a first legrest end of the first swivel arm and wherein the first swivel arm is pivotably connected to the slide of the displacement unit at a first swivel arm end opposite the legrest via a first swivel joint rotatable about a first swivel axis.

Such a known leg rest fitting in a known piece of seating and / or reclining furniture makes it possible to install the legrest in the non-use position almost invisibly and in a space-saving manner below a seat part of the sitting and / or reclining furniture. To adjust the legrest into the position of use, the legrest is moved out via the displacement unit to a front side under the seat part and by pivoting the first swivel arm of the swivel unit to a comfortable height in the area of a seat height of the seat part spent. An adjustment of the legrest from the use position back to the non-use position takes place accordingly recursively.

A leg rest fitting of the aforementioned type is from the DE 20 2012 000 391 U1 famous. In this case, the legrest is moved to the front in the frame for adjustment from the non-use position to the use position by a definable displacement path via a lever-operated starting aid device, so that it can be gripped by an operator and swiveled manually into the use position. In the position of use, the legrest is held in place by a releasable locking device.

Nevertheless, there is a constant need for a leg rest fitting that is easy to use for sitting and / or reclining furniture with which the legrest can be reversibly adjusted from the non-use position to the use position and back fully automatically, motorized and positively controlled. In addition, there is a constant need for a legrest fitting with which the reversible adjustment of the legrest can take place reliably and safely. A problem with known legrest fittings of the aforementioned type is, for example, that they are unsecured against pivoting the legrest beyond the position of use and as a result can suffer damage. In the case of known legrest fittings, damage can also occur if an object is positioned under the legrest brought into the use position and the legrest is then brought back into the non-use position.

The object of the present invention is therefore to provide an improved leg rest fitting.

To solve the problem, the invention in connection with the preamble of claim 1 is characterized in that in the first pivot arm end of the first pivot arm a lever protrusion protruding in sections over the first pivot axis of the first pivot joint on a rear side opposite the legrest and on an upper side opposite a floor with a contact surface designed as a run-on bevel and a first pivot axis of the first pivot joint, in any case in sections on the Auxiliary contact surface protruding from the top and opposite the contact surface is formed, the auxiliary contact surface and a surface facing the legrest forming a recess in the first pivot arm end of the first pivot arm and wherein the pivot arms rotate around the pivot joints to move the leg support from the non-use position into the use position by the The slide of the displacement unit is moved towards a front side in the frame in such a way that the contact surface of the lever projection of the first pivot arm is moved against a stationary deflection element of the frame and the first pivot axis is moved towards the front side in front of the deflection element, so that a weight force of the pivot unit on the Deflection element of the frame is supported and that the auxiliary contact surface is kept at a distance from the deflection element of the frame.

The particular advantage of the invention is that the contact surface in the lever protrusion of the first swivel arm formed as a bevel and the deflecting element held in place on the frame form a positive guide for a swiveling movement of the first swivel arm, provided that the slide of the displacement unit has moved into the area of the deflecting element . The weight of the leg rest and the swivel unit has an advantageous effect here, since it constantly presses the contact surface against the deflecting element during the swiveling movement of the first swivel arm. As a result, the leg rest can be pivoted up and down in a defined manner via the run-up slope. This previously described positive guidance converts a translational movement of the slide of the displacement unit into an additional, temporally overlapping pivoting movement of the pivoting unit. This makes it possible to adjust the legrest fully automatically and forcibly reversibly from the non-use position to the use position and back using a simple linear drive mechanism or drive unit. The auxiliary contact surface of the formation formed in the first swivel arm prevents the legrest from being pressed against the seat cushion when it is being adjusted from the use position to the non-use position if the swiveling back of the swivel unit is blocked, for example because there is an object under the legrest. In this case, the first swivel arm is forcibly swiveled down when the slide of the displacement unit moves back to the rear side, in that the auxiliary contact surface is placed against the deflecting element.

A suitable drive unit for translatory movement of the slide of the displacement unit along the frame is in particular an electromotive belt drive. Here, the slide is coupled to a belt, which is driven by a drive roller that is essentially parallel to the frame via at least one deflection roller and an electric motor-driven drive roller opposite the deflection roller is led.

The auxiliary contact surface on the first pivot arm of the contact surface opposite to the contact surface secures the legrest fitting in the event of a slight play against pivoting up too far beyond the position of use of the leg rest by forming a safety pivoting stop which, if the first pivoting arm is pivoted up too far, against the deflection element of the frame strikes and blocks further swiveling up. Any damage caused by swiveling the legrest up too far is thus prevented.

According to a preferred embodiment of the invention, the contact surface and the auxiliary contact surface are oriented at an angle to one another and / or form a V-shaped swivel recess, the swivel recess being the deflecting element of the frame when the first swivel arm rotates for reversible adjustment of the legrest from the non-use position to the use position and back at least partially encompassed. The pivoting recess enables the contact surface to be placed unhindered against the deflection element of the frame when the slide of the displacement unit is moved out in a translatory manner and can be moved further relative to it. In addition, as described above, the auxiliary contact surface secures the legrest from pivoting up too far. The deflecting element is preferably encompassed by the pivoting recess in such a way that the auxiliary contact surface is held without contact with the deflecting element when the legrest is pivoted up into the position of use and is only applied to the deflecting element when the legrest is pivoted up to a position slightly above the intended position of use of the legrest. This prevents unnecessary frictional forces between the auxiliary contact surface and the deflecting element when the legrest is pivoted.

According to a further development of the invention, the auxiliary contact surface of the formation is shaped and designed so that when the legrest is moved from the use position to the non-use position in a blocking situation in which the contact surface of the lever projection is provided at a distance from the deflecting element and the deflecting element in any case in sections from the pivot recess is encompassed, the auxiliary contact surface is placed on the deflecting element in such a way that the pivoting unit is pivoted down. The auxiliary contact surface is then applied to the deflection element as a result of a resistance acting against the weight of the legrest, whereby the pivoting unit is forcibly pivoted down when the slide of the displacement unit moves back from the use position to the non-use position. This can prevent the legrest from being pressed against the seat cushion and causing damage to the furniture to be seated and / or reclining or to the legrest fitting.

According to a further development of the invention, the deflecting element of the frame is oriented horizontally or in any case has a circular cross-section and / or a rotatably mounted roller shell at the level of a contact area of the deflecting element on which the contact surface is applied when the first pivot arm rotates. The deflection element is advantageously oriented horizontally like the axes of the swivel unit. In this respect, the contact surface of the first pivot arm can be placed against the deflection element without play in relation to a horizontal horizontal axis of the deflection element or can be displaced relative to the deflection element. This results in a stable and precise forced guidance for the pivoting of the legrest. A rotatably mounted roller casing of the deflecting element at the level of the contact area with the contact surface placed on it or guided along it ensures a particularly advantageous, low-friction and stable forced guidance.

According to a further development of the invention, a displacement path over which the slide of the displacement unit can be moved in the frame is limited to the front by a stop on the frame. In the position of use of the legrest, the slide of the displacement unit is moved up to the stop, with the rotation of the first pivot arm for reversible adjustment of the legrest from the non-use position to the position of use and back Auxiliary contact surface of the formation of the first pivot arm end of the first pivot arm between the stop and the deflecting element is held, in any case, in sections so as to engage in the frame. The front stop of the frame prevents the slide from moving out too far in the frame and defines an end position for the displacement path of the slide of the displacement unit.

A pivoting down of the leg rest out of the position of use is prevented by the interaction of the frame and the positive guide formed by the contact surface and the deflecting element until the slide of the displacement unit is moved back in the direction of a rear side opposite the front side. This is due to the fact that the weight of the leg rest and the swivel unit presses the contact surface against the deflection element. Since the contact surface is kept inclined towards the front side while it is placed against the deflecting element, a movement of the carriage towards the front side causes the legrest to pivot upwards due to the weight of the leg rest. Moving the slide towards the rear causes the first swivel arm or the legrest to pivot downward. Consequently, a height or a pivot end position for the position of use of the legrest can be adapted via a distance between the stop and the deflecting element or via an inclination with which the contact surface of the first pivot arm is held in the position of use.

According to a further development of the invention, the swivel unit has a second swivel arm with a second leg rest end, on which the legrest is pivotably held via a second leg rest joint, and with a second pivot arm end opposite the leg rest, which is pivotably held on the slide of the displacement unit via a second pivot joint is. The legrest can be swiveled in a defined orientation using the two swivel arms. A particularly advantageous embodiment of the leg rest fitting according to the invention provides that the swivel arms are essentially C-shaped, with the ends of the swivel arms having a different inclination and / or length. Furthermore, according to a particularly advantageous embodiment of the invention, it is provided that the axes passed through the pivot arms are arranged offset. This makes it possible that the legrest when Pivoting the pivot arms experiences an inclination and can be pivoted with a defined orientation. In this way, the legrest can be held parallel to the frame in the non-use position and can therefore be moved into the frame in a particularly compact manner. In a particularly advantageous position of use, the leg rest is oriented slightly inclined towards the front for a particularly high level of sitting or lying comfort.

According to a further development of the invention, the swivel unit has a legrest support device via which the legrest is connected to the swivel arms. A particularly advantageous embodiment of the leg rest fitting according to the invention provides that the leg rest support device has a linear displacement unit.

According to a further development of the invention, an adjustable adjustment device is provided on the slide of the displacement unit. In the non-use position of the legrest, the weight of the pivoting unit is supported on the adjustment device, in that a pivot arm of the pivoting unit is placed against an adjustment element of the adjustment device which is held displaceably on the slide. A defined position for the legrest in the non-use position can be set via the adjustment device in that the swivel arm placed on the adjustment element in the non-use position of the legrest rotates around the pivot axis as a result of a rotary and / or translational adjustment of the adjustment element. The adjustment device also holds the legrest in the non-use position and prevents the swivel arms from making contact with the floor when the legrest is adjusted.

The position information above, below, front, rear and the like throughout the description always relate to the leg rest fitting in an installation position in which it is mounted on the frame of the seating and / or reclining furniture on a side opposite the seat part, the seat - And / or lying furniture supported by feet on a floor. The position information above and below relate to the vertical distance to the ground. Above means a position away from the ground, below a position closer to the ground.

Further advantages, features and details of the invention can be derived from the further subclaims and the following description. Features mentioned there can be essential to the invention either individually or in any combination. The drawings serve only by way of example to clarify the invention and are not of a restrictive nature.

Fig. 1

eine schematische perspektivische Teilansicht eines Sitz- und/oder Liegemöbels mit einer Beinauflage in einer Nichtverwendungsstellung,

Fig. 2

das Sitz- und/oder Liegemöbel nach Fig. 1 mit der Beinauflage in einer Verwendungsstellung,

Fig. 3

eine Draufsicht auf das Sitz- und/oder Liegemöbel nach Fig. 1 mit der Beinauflage in der Verwendungsstellung,

Fig. 4

eine Draufsicht auf das Sitz- und/oder Liegemöbel nach Fig. 1 mit der Beinauflage in der Nichtverwendungsstellung,

Fig. 5

eine Schnittansicht nach einer Schnittlinie II-II durch das Sitz- und/oder Liegemöbel nach Fig. 4,

Fig. 6

ein Detail A des Sitz- und/oder Liegemöbels nach Fig. 5,

Fig. 7

eine erste Teilschnittansicht des Sitz- und/oder Liegemöbels nach Fig. 1 mit der Beinauflage in einer Zwischenstellung,

Fig. 8

eine weitere Teilschnittansicht nach einer Schnittlinie I-I durch das Sitz- und/oder Liegemöbels nach Fig. 3,

Fig. 9

eine erste Seiteneinzelansicht eines Beinauflagebeschlags des Sitz- und/oder Liegemöbels nach Fig. 1 mit einem Beinauflageträger für die Beinauflage in der Nichtverwendungsstellung,

Fig. 10

eine der ersten Seiteneinzelansicht nach Fig. 9 gegenüberliegende zweite Seitenansicht eines Beinauflagebeschlags des Sitz- und/oder Liegemöbels nach Fig. 1,

Fig. 11

ein Detail B des Beinauflagebeschlags nach Fig. 10,

Fig. 12

eine seitliche Schnittansicht des Beinauflagebeschlags nach Fig. 9 mit dem Beinauflageträger für die Beinauflage in der Verwendungsstellung,

Fig. 13

ein Detail C des Beinauflagebeschlags nach Fig. 12,

Fig. 14

eine Seitenansicht auf eine an einem Schlittenträger gehaltene Schwenkeinheit des Beinauflagebeschlags nach Fig. 10 mit dem Beinauflageträger für die Beinauflage in der Verwendungsstellung und

Fig. 15

eine Seitenansicht der an dem Schlittenträger gehaltenen Schwenkeinheit nach Fig. 14 mit dem Beinauflageträger für die Beinauflage in der Nichtverwendungsstellung.

Show it:

Fig. 1

a schematic perspective partial view of seating and / or reclining furniture with a leg rest in a non-use position,

Fig. 2

the seating and / or reclining furniture Fig. 1 with the legrest in a position of use,

Fig. 3

a top view of the seating and / or reclining furniture Fig. 1 with the legrest in the position of use,

Fig. 4

a top view of the seating and / or reclining furniture Fig. 1 with the legrest in the non-use position,

Fig. 5

a sectional view according to a section line II-II through the seating and / or reclining furniture Fig. 4 ,

Fig. 6

a detail A of the seating and / or reclining furniture Fig. 5 ,

Fig. 7

a first partial sectional view of the seating and / or reclining furniture according to Fig. 1 with the legrest in an intermediate position,

Fig. 8

a further partial sectional view according to a section line II through the seating and / or reclining furniture Fig. 3 ,

Fig. 9

a first individual side view of a leg rest fitting of the seating and / or reclining furniture Fig. 1 with a legrest support for the legrest in the non-use position,

Fig. 10

one of the first single page views Fig. 9 opposite second side view of a leg rest fitting of the seating and / or reclining furniture according to Fig. 1 ,

Fig. 11

a detail B of the leg rest fitting Fig. 10 ,

Fig. 12

a side sectional view of the leg rest fitting according to Fig. 9 with the legrest support for the legrest in the position of use,

Fig. 13

a detail C of the leg rest fitting Fig. 12 ,

Fig. 14

a side view of a swivel unit of the leg rest fitting held on a slide carrier Fig. 10 with the legrest support for the legrest in the position of use and

Fig. 15

a side view of the swivel unit held on the slide carrier Fig. 14 with the legrest support for the legrest in the non-use position.

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

Fig. 2 shows the seating and / or reclining furniture 1 with the leg rest 6 in a position of use. The legrest 6 is here compared to the in Fig. 1 The non-use position shown is pivoted to a front side 41 in front of the seat part 66 and to a substantially equal height to a seat height of the seat part 66. In this case, the legrest 6 is inclined slightly downwards towards the front side 41 in the position of use.

the Fig. 3 and Fig. 4 show the seating and / or reclining furniture 1 according to Fig. 1 each in a top view. Thereby there 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 indicates a top view of the furniture 1 to sit and / or lie on with the leg rest 6 placed under the seat part 66 in the non-use position.

This enables a reversible adjustment of the legrest 6 from the non-use position to a use position and back via a legrest fitting 2 held on the frame 3 of the seating and / or reclining furniture 1. An embodiment of the legrest fitting 2 is described below with reference to FIG FIGS. 5 to 15 explained in more detail.

A sectional view along a section line II-II through the seating and / or reclining furniture 1 according to FIG Fig. 4 with the legrest 6 in the non-use position Fig. 5 on. It can be seen that the leg rest 6 attached to the leg rest fitting 2 is oriented parallel to the seat part 66 in the non-use position and has moved compactly under the seat part 66 to such an extent that the seat part 66 projects over it towards the front side 41.

the Fig. 6 looks with an enlarged view in a detail A of the seating and / or reclining furniture 1 Fig. 5 on the legrest fitting 2 and the legrest 6 fixed thereon in the non-use position. The legrest fitting 2 is held on an underside of the frame 3 of the seating and / or reclining furniture 1 opposite the seat part 66.

The main components of the legrest fitting 2 are a displacement unit 5 with a slide 30 that can be moved in a translatory manner relative to a longitudinal member 65 of the frame 3, a pivot unit 4 with pivot arms 22, 23 and a legrest support device 7 on which the legrest 6 is fixed.

A partial sectional view of the seating and / or reclining furniture 1 according to Fig. 1 is in Fig. 7 specified. Here, the legrest 6 is out of the non-use position according to FIG Fig. 6 in a translatory manner to the front side 41 via the displacement unit 5 advanced intermediate position has been adjusted. The slide 30 of the displacement unit 5 is moved here over approximately half the length of the longitudinal beam 65 of the frame 3. The legrest 6 protrudes in sections towards the front side 41 under the seat part 66 of the seating and / or reclining furniture 1, the legrest 6 being oriented parallel to the seat part 66 as in the non-use position.

The slide 30 of the displacement unit 5 is essentially made in two parts and comprises a slide carriage 69 which is held so as to be linearly displaceable in relation to the longitudinal beam 65 of the frame 3 and a carriage carriage 70 which protrudes in sections from the longitudinal beam 65 of the frame 3 to a floor 42 and which is attached to the movable carriage carriage 69 is held suspended above the floor 42.

The swivel arms 22, 23 of the swivel unit 4 connect the legrest support device 7 to the slide 30 of the displacement unit 5. For this purpose, the swivel arms 22, 23 of the swivel unit 4 can each be swiveled on the slide carrier with a swivel arm end 28, 29 opposite the leg rest 6 via swivel joints 14, 15 70 of the carriage 30 held. The leg rest support device 7 is held on the leg rest ends 24, 25 of the pivot arms 22, 23 opposite to the slide 30 of the displacement unit 5 so as to be pivotable via leg rest joints 18, 19. The pivot arms 22, 23 have a substantially C-shaped shape, their ends 24, 25, 28, 29 being held in the non-use position so as to be vertically inclined from the floor 42. A middle section of the pivot arms 22, 23 formed between the ends 24, 25, 28, 29 is in each case oriented horizontally in the non-use position of the legrest 6.

At a first pivot arm end 28 opposite the leg rest 6, the first pivot arm 22 is held pivotably via a first pivot joint 14 on the slide carrier 70. The first pivot arm 23 forms in the first pivot arm end 28 above the first pivot joint 14 a lever protrusion 27, which in any case partially engages the longitudinal beam 65 of the frame 3, which in the illustrated embodiment of the leg rest fitting 2 forms a jagged lever protrusion tip 54. Next is in the first pivot arm end 28 of the first pivot arm 22 above the first Pivot joint 14 forms a recess 57 which protrudes from the lever protrusion 27 in such a way that a substantially V-shaped swivel recess 60 is formed between the lever protrusion 27 and the recess 57. The function of the lever protrusion 27 and the formation 57 will be discussed in greater detail later.

In the embodiment of the legrest fitting 2 shown in the figure, the legrest support device 7 has a plate-shaped legrest support 12 on which the legrest 6 is fixed on the upper side. Furthermore, the legrest support device 7 has a linear displacement unit which is formed from a longitudinally profiled support rail 8 with a rail length S and from a leg support slide 13 which can be moved translationally with respect to the support rail 8 in relation to a longitudinal axis 9 of the support rail 8. The linear displacement unit functions as a stroke extension, which ensures that the legrest 6 is advanced into the position of use opposite the pivot arm 22 or relative to the legrest 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, as a result of which the leg rest fitting 2 can be designed to be more compact and more weight-saving overall. The legrest support device 7 also provides a lever mechanism designed as a lever chain 31, which connects the legrest carriage 13 to the first pivot arm 22. The lever chain 31 will be discussed in greater detail later. The linear displacement unit of the legrest support device 7 is fixed on a side of the legrest support 12 opposite the legrest 6.

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

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

the Fig. 9 and Fig. 10 show the leg rest fitting 2 each in a single side view. The legrest support device 7 is here held in the non-use position for the legrest 6, the legrest 6 not being shown.

On a rear side opposite the front side 41, the frame 3 has a motor 63 with a motor lead 64.

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 Pivoting evenly and pivoted about the same pivoting path. The axes 16, 20 of the joints 14, 18 connected to the first pivot arm 22 are, however, positioned offset in the horizontal direction towards the front side 41 and in the vertical direction towards the floor 42 with respect to the axes 17, 21 of the joints connected to the second pivot arm 23 15, 19. This has the effect that the leg rest 6 is held in a defined orientation when it is pivoted 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 legrest support device 7 can be implemented in that the first pivot arm 22 interacts with the lever chain 31 and the linear displacement unit of the leg support support device 7 when the pivot unit 4 is pivoted. This interaction will be explained in more detail later.

The first pivot arm 22 forms a lever chain protrusion 26 on the first leg support end 24 facing the legrest 6 above the first leg rest joint 18, which is held vertically inclined in the non-use position. When pivoting the pivot unit 4 in the position of use If the lever chain extension 26 rotates accordingly in a clockwise direction about the first joint axis 20 of the first leg rest joint 18. The lever chain 31 connected to the lever chain extension 26 of the first pivot arm 22 is moved accordingly.

The lever chain 31 is formed from three chain links 34, 35, 36 that are pivotably connected to one another. A first chain link 34 is attached to a second lever end 32 of the lever chain 31 opposite the first lever end 33 towards the front side 41, via a first chain joint 37, so that it can pivot on the leg support carrier 12 of the leg rest carrier device 7. The first chain link 34 is pivotably connected to a central second chain link 35 via a second chain joint 38. A third chain link 36 is pivotably 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 pivotably connected to the lever chain projection 26 via a fourth chain joint 40. The chain links 34, 35, 36 of the lever chain 31 are each of different lengths, the first chain link 34 being made 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 kink. In the area of a bend in the second chain link 35, a fifth chain joint 46 is provided, which is fixed to the leg support slide 13. In the illustrated non-use position of the legrest 6, the chain links 34, 35, 36 are swiveled compactly into one another, the first chain link 34 and the second chain link 35 being aligned almost parallel to one another.

The legrest joints 18, 19, via which the pivot arms 22, 23 are connected to the legrest support device 7, are fixed in the legrest slide 13. In this respect, the lever chain 31 connects the legrest support 12 and the support rail 8 attached to it to the first pivot arm 22, which in turn is pivotably held on the leg rest slide 13 via the first leg rest joint 18. In this respect, the lever chain 31 also prevents the support rail 8 from being able to detach from the leg rest slide 3.

The legrest slide 13 is designed in such a way that, when the legrest 6 is not in use, it is moved in sections beyond a first rail end 10 of the support rail 8 facing the front side 41 can. This has the advantage that the linear displacement unit has a comparatively large legrest displacement path X and the support rail 8 and the legrest carriage 13 can be made correspondingly shorter and thus comparatively compact and weight-saving. This displacement of the legrest slide 13 relative to the support rail 8 takes place automatically when the legrest 6 is brought into the position of use.

An adjustment device 44 is provided on the slide carrier 70 of the slide 30 of the displacement unit 5. A defined orientation in the non-use position can be set for the legrest 6 via the adjustment device 44. The adjustment device 44 also supports a weight force of the pivot unit 4 and the legrest 6 in the non-use position, in that the second pivot arm 23 with a second pivot arm outer side 75 opposite the leg rest 6 is placed below the second pivot joint 15 on an adjustment element 45 of the adjustment device 44. In this respect, when the legrest 6 is not in use, the adjustment element 45 functions as an adjustable swivel stop for the swivel unit 4. The adjustment device 44 holds the legrest 6 firmly above the floor 42 until the swivel unit 4 begins to swivel to adjust the legrest 6. The adjustment device 44 is shown in a detail B of the leg rest fitting 2 Fig. 10 shown enlarged in a first assembly position. It comprises the adjustment element 45, which is fixed to the slide carrier 70 via a releasable connecting means 53.

In the embodiment shown, the adjustment element 45 has two congruent, opposing contact surfaces 47, a first contact surface being applied to the slide carrier 70 in the first assembly position. The contact surfaces 47 are connected to one another via a circumferential surface 52. The adjustment element 45 also has an elongated opening 48 with an opening length L, which opens on the inside 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 in relation to a longitudinal axis 78 of the opening 48. Here, a first contact surface area 51 formed in the circumferential surface 52 and a first contact surface area 51 lie in the Circumferential surface 52 formed second contact surface area 52 in mirror image opposite. Both contact surface areas 51, 52 have the same inclination in relation to the longitudinal axis 49 of the opening. The contact surface areas 51, 52 are aligned in a form-fitting manner with respect to 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 placed against the second pivot arm outer side 75 of the second pivot arm 23.

Since the adjustment element 45 is designed symmetrically in the embodiment shown, it can also be held on the slide carrier 70 in an alternative, second assembly position (not shown). Here, the adjustment element is rotated by 180 ° with respect to the first assembly position in relation to the longitudinal axis 48 of the opening. As before, the connecting means 53 is passed through the opening 48 of the adjustment element 45 and is fixed on the slide carrier 70 of the displacement unit 5. A second contact surface 47 here rests on the slide carrier 70. The second contact surface area 52 is placed against the second pivot arm outer side 75 of the second pivot arm 23 in the first assembly position, analogously to the first contact surface area 51.

In the present embodiment, the releasable connecting means 53, which fixes the adjustment element 45 to the slide carrier 70, is designed as a screw. The connecting means 53 is firmly tightened in the first and second assembly positions of the adjustment device 44.

To adjust the orientation of the legrest 6 in the non-use position, the connecting means 53 can be released. The adjustment element 45 can then be displaced in translation along the opening 48. Since the contact surface areas 51, 52 placed on the second pivot arm 23 in the non-use position of the leg rest 6 are inclined to the longitudinal axis 48 of the opening, translational displacement of the adjustment element 45 along the longitudinal axis 48 of the opening causes a displacement of the contact surface areas 51, 52 towards the front side 41 or in opposite direction away from the front 41. In the embodiment according to 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. Correspondingly, this adjustment of the adjustment element 45 causes the first pivot arm 23 in the non-use position of the legrest 6 to be held in a position rotated slightly clockwise, whereby a slightly raised non-use position is set for the legrest 6. A reverse displacement of the adjustment element 45 upwards along the longitudinal axis 78 of the opening causes recursively a slight lowering of the legrest 6 in the non-use position. Alternatively, the adjustment element 45 can also be adjusted for aligning the legrest 6 in the non-use position by being adjusted rotationally about a shaft axis of the connecting means 53.

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

The lever chain protrusion 26 of the first pivot arm 22 has been pivoted in the position of use of the legrest 6 in relation to the non-use position of the legrest 6 in a clockwise direction towards the rear side opposite the front side 41. As a result, the lever chain 31 is pivoted or stretched apart, as a result of which the leg support slide 13 has been moved along the rail longitudinal axis 9 of the mounting rail 8 to the second rail end 11 of the mounting rail 8 opposite the front side 41.

The lever protrusion 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 interacts with a deflection element 61 held on the frame 3 as a triggering device which, depending on a position of the slide 30 of the displacement unit 30, triggers a defined and automatic pivoting of the pivot arms 22, 23 at the same time as the slide 30 is moved. The deflecting 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 in such a way that it comes into engagement with the deflection element 61 when the slide 30 is moved. The contact surface 55 is designed as a run-on bevel and is approximately vertical in the position of use of the legrest 6 and inclined towards the legrest 6 in the non-use position Vertical oriented. Swiveling up of the swivel arms 22, 23 is triggered as soon as the slide 30 of the displacement unit 5 has moved to the front 41 to such an extent that the contact surface 55 comes into engagement with the deflecting element 61. The further the first pivot axis 16 of the first pivot joint 14 held on the slide 30 is moved to a position on the front side 41 in front of the deflecting element 61, the more the first pivot arm 22 experiences a clockwise rotation via the lever protrusion 27, whereby the leg rest 6 is raised. The position of use of the legrest 6 is reached as soon as the slide 30 has moved out to just before the stop 62 of the frame 3. The weight of the legrest 6 and the legrest support device 7 presses the contact surface 55 continuously against the deflecting element 61 during the pivoting, so that an unintentional pivoting down of the legrest 6 is prevented. Rather, the pivot arms 22, 23 can only be pivoted down if the slide 30 of the displacement unit 5 is moved back in relation to the front side 41.

Figure 13 looks in an enlarged detail C of the leg rest fitting 2 Fig. 12 onto the lever protrusion 27 and the deflecting element 61, the legrest support 12 being brought to a position for the legrest 6 in the position of use. The contact surface 55 is placed against the deflecting element 61. A lever protruding surface 56 at an angle opposite the contact surface 55 forms the jagged lever protrusion end 54 with the contact surface 55. In the illustrated embodiment of the leg rest fitting 2, the recess 57 is cam-shaped and has an auxiliary contact surface 58 at an angle opposite the contact surface 55 and 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 engages around the deflecting element 61 when the pivot arms 22, 23 are pivoted.

The auxiliary contact surface 57 is spaced apart from the deflecting element 61 when the pivot arms 22, 23 are pivoted for the reversible adjustment of the leg rest 6 from the non-use position into the use position. It is provided as a safety device, in particular in the event that when the legrest 6 is moved back from the position of use to the non-use position, there is an obstacle underneath the legrest 6 (blocking situation). In this case, the contact surface 55 is initially detached from the Deflection element 61 and the auxiliary contact surface 58 then lie against the deflection element 61. When the slide 30 of the displacement unit 5 moves back further, the auxiliary contact surface 58 functions as an auxiliary run-on bevel, along which the first pivot arm 22 has moved against the deflecting element 61. In this way, the pivoting unit 4 is forcibly pivoted down, which prevents the legrest 6 from moving against the seat cushion 66 and damage to the legrest fitting 2 or to the seating and / or reclining furniture 1.

Finally, the Fig. 14 and Fig. 15 In a side view, in each case the swivel unit 4 with the swivel arms 22, 23 and the leg rest support device 7 held thereon, which is held pivotably on the slide carrier 70 of the slide 30 of the displacement unit 5. The swivel unit 7 is shown in FIG Fig. 14 pivoted up for the leg rest 6 held in the position of use. In Fig. 15 the legrest support device 7 for the legrest 6 is held in the non-use position.

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

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

The same components and component functions are identified by the same reference symbols.

Claims (9)

Leg rest fitting (2) for the reversible adjustment of a legrest (6) of a piece of furniture (1) for sitting and / or lying down from a position of use to a position of no use and back, comprising a displacement unit (5) with a slide (30) that can be moved in a translatory manner in a frame (3) ) and comprising a swivel unit (4) with a first swivel arm (22), wherein the legrest (6) is held at a first legrest end (24) of the first swivel arm (22) and wherein the first swivel arm (22) is held on one of the legrests ( 6) opposite first pivot arm end (28) is pivotably connected to the slide (30) of the displacement unit (5) via a first pivot joint (14) rotatable about a first pivot axis (16), characterized in that in the first pivot arm end (28) of the first swivel arm (22) on the first swivel axis (16) of the first swivel joint (14) on a rear side opposite the leg rest (6) and on a rear side opposite a floor (42) Lever protrusion (27) protruding in sections at the top with a contact surface (55) designed as a run-on bevel and an auxiliary contact surface (58) protruding over the first pivot axis (16) of the first pivot joint (14) in sections at the top and opposite the contact surface (55) is, wherein the auxiliary contact surface (58) and a surface (59) facing the legrest (6) form a recess (57) in the first pivot arm end (28) of the first pivot arm (22) and for moving the leg rest (6) from the In the non-use position in the use position, the swivel arms (22, 23) rotate around the swivel joints (14, 15) by moving the slide (30) of the displacement unit (5) towards a front side (41) in the frame (3) in such a way that the contact surface (55) of the lever projection (27) of the first pivot arm (22) against a fixedly held deflection element (61) of the frame (3) and the first pivot axis (16) to the Vo The rder side (41) is moved in front of the deflection element (61) so that a weight of the pivot unit (4) is supported on the deflection element (61) of the frame (3) and that the auxiliary contact surface (58) is kept at a distance from the deflecting element (61) of the frame (3). Leg rest fitting (2) according to claim 1, characterized in that the contact surface (55) and the auxiliary contact surface (58) are oriented at an angle to one another and / or form a V-shaped pivot recess (60), the pivot recess (60) being the deflecting element (61 ) of the frame (3) when rotating the first pivot arm (22) for reversible adjustment of the legrest (6) from the non-use position to the use position and back, in any case partially encompassed. Leg rest fitting (2) according to claim 1, characterized in that the auxiliary contact surface (58) of the recess (57) is shaped and designed so that when the legrest (6) is moved from the use position to the non-use position in a blocking situation in which the contact surface (55) of the lever protrusion (27) is spaced from the deflection element (61) and the deflection element (61) is in any case partially encompassed by the pivoting recess (60), the auxiliary contact surface (58) is placed on the deflection element (61) in such a way that a Swiveling down the swivel unit (4) is carried out. Leg rest fitting (2) according to one of claims 1 to 3, characterized in that the deflection element (61) of the frame (3) is oriented horizontally and / or at least at the level of a contact area of the deflection element (61) to which the contact surface (55) is applied when rotating the first pivot arm (22), has a circular cross-section and / or a rotatably mounted roller shell. Leg rest fitting (2) according to one of claims 1 to 4, characterized in that a displacement path (Z), via which the slide (30) of the displacement unit (5) can be moved in the frame (3), towards the front side (41) is limited by a stop (62) of the frame (3), with the carriage (30) of the displacement unit (5) being moved towards the stop (62) when the legrest (6) is in use, and when the first pivot arm (22 ) for reversible adjustment of the Leg rest (6) from the non-use position to the use position and back the auxiliary contact surface (58) of the formation (57) of the first pivot arm end (28) of the first pivot arm (22) between the stop (62) and the deflection element (61) in any case in sections Frame (3) is held engaging. Leg rest fitting (2) according to one of Claims 1 to 5, characterized in that the first swivel arm (22) has a kink and / or a bend in the region of the first swivel joint (14). Legrest fitting (2) according to one of claims 1 to 6, characterized in that the swivel unit (4) has a second swivel arm (23) with a second leg rest end (25) on which the legrest (6) is connected via a second leg rest joint (19) is held pivotably, and with a second pivot arm end (29) opposite the leg rest (6), which is pivotably held on the slide (30) of the displacement unit (5) via a second pivot joint (15). Legrest fitting (2) according to one of Claims 1 to 7, characterized in that the swivel unit (4) has a legrest support device (7) via which the legrest (6) is connected to the swivel arms (22, 23). Legrest fitting (2) according to one of claims 1 to 8, characterized in that an adjustable adjustment device (44) is provided on the slide (30) of the displacement unit (5), on which the weight of the pivoting unit when the legrest (6) is not in use (4) is supported in that a swivel arm (22, 23) of the swivel unit (4) is placed on an adjustment element (45) of the adjustment device (44) which is held displaceably on the carriage (30) and / or wherein the adjustment device (44) a defined position for the legrest (6) can be set in the non-use position by the swivel arm (22, 23) placed against the adjustment element (45) in the non-use position of the legrest (6) as a result of a displacement of the adjustment element (45) about the swivel axis ( 16, 17) rotates.

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