EP1862095A1 - Furniture adjustment device - Google Patents

Abstract

The adjusting system for e.g. a back- or foot rest on a chair or sun bed comprises a spindle (18), on which a nut (19) is mounted. This operates two levers (23, 24), one of which (24) moves another lever (16) on which the back- or foot rest is mounted.

Description

The invention relates to a Möbelverstellvorrichtung with at least one spindle, to which a movable spindle in the longitudinal direction of the spindle nut is set, and that by means of at least one coupling arrangement, a movably arranged furniture component is movable.

The furniture adjustment device in question is used, for example, to adjust the adjustable components of a reclining furniture or a piece of furniture. Depending on the purpose, the Möbelverstellvorrichtung can be designed as a double drive, which has two drive trains whose spindle nuts cause the pivoting of a rotatably mounted shaft by the coupling arrangement. If the Möbelverstellvorrichtung is used to adjust the backrest and the foot of a slatted frame, the spindle nut presses against an articulation lever, which is firmly placed on the shaft to be adjusted. This articulation lever is located in the central region of the shaft, so that the adjusting device is mounted in the central region of the slatted base.

The furniture adjustment device in question may also include a so-called single drive, which is equipped with a drive train. Such drives are normally used for adjusting a furniture component or for rotating a shaft. In the standard version, a so-called lifting tube is fixed to the spindle nut, the opposite free end of which can carry a clevis in order to connect the lifting tube to a lever. The coupling device therefore consists of the lifting tube, possibly the clevis or other connection part.

These designs have proven their worth in the industry. Frequently, however, in the furniture, the installation space for the furniture adjustment devices in question are relatively small. In practice, it is introduced so that the Möbelverstellvorrichtungen be adapted to the construction of the furniture. It follows that the Möbelverstellvorrichtungen are mutatis mutandis dependent on the furniture. Particularly disturbing is that the previously known Möbelverstellvorrichtungen are designed so that they act on a continuous shaft.

The invention has for its object to design a Möbelverstellvorrichtung of the type described in detail so that in a structurally simple manner, a compact design can be achieved, and in particular the furniture adjustment can be designed so that can be dispensed with a pivotable shaft or axis ,

The object is achieved by each spindle is arranged parallel to and at a distance from the axis of rotation of the pivoting furniture component, and that the coupling arrangement consists of at least one of the thrust force of the spindle nut transversely to the direction of movement diverting lever.

Due to the design of the furniture adjustment device according to the invention, the otherwise required in the furniture always shaft or axle can be omitted. Although the furniture component to be pivoted is pivotable about an axis of rotation, this is not a structural feature of the furniture, but an imaginary or virtual axis. In contrast to the conventional Möbelverstellvorrichtungen the spindle or spindles is now in a rotated position by 90 °. This Möbelverstellvorrichtung is to be regarded as a single drive, although it can be equipped with two aligned spindles, but so that only a furniture component is adjustable.

Since the spindle nut now acts on the reversing lever or on the reversing lever, the coupling arrangement or the coupling arrangements can be installed outside the middle region of the furniture, thereby favoring the compact design. Appropriately, the coupling arrangement should be designed so that at a relatively small path of the spindle nut as large a pivot angle of the component to be adjusted is achieved, as this also favors the compact design. It should also be considered that nevertheless a sufficient force acts on the component to be adjusted.

In a first embodiment it is provided that the coupling arrangement consists of two single-arm, hingedly interconnected reversing levers that the joint opposite end portion of a first reversing lever is fixedly mounted, and that the joint opposite end portion of the second reversing lever on a transverse to the spindle extending guide guided slide is hinged. The reversing levers are in such positions relative to each other that the force is diverted by the extension movement of the spindle nut in the direction of the reversing levers, so that the slide is moved by an extension of the two lever, whereby a movement of the furniture component to be adjusted is derived.

According to a preferred embodiment, it is provided that the deflection levers have the same lengths, or that at least the distances of the hinge points are equal or approximately equal. It is further provided in a further embodiment that the lengths of the lever are in a certain relationship to each other, so that thereby a certain movement of the movable furniture component is generated. In particular, it is thus possible to achieve a movement which is to be regarded as uniform.

In a further embodiment, at least the joints of the lever are positively connected and thus connected together. In a further embodiment, however, it is provided that all articulated joints are positively connected and consequently connected together.

The slider or at least one lever is to be seen as a pressure piece for adjusting a furniture component, which acts directly or indirectly on a cam of a movable furniture component, wherein the contact area between the cam and the slider is offset from the axis of rotation of the furniture part. As a result of the offset, sufficient torque for the pivotability of the furniture component is applied. However, depending on the design of the furniture, it is also possible that the slider acts on a linearly movable component.

It is also possible that the slide acts by means of a linearly movable intermediate piece on the cam of the movable furniture part.

In a particularly advantageous manner, it is provided that the two pivotally coupled, one-armed lever in the region of their coupling contact the facing surface of the slider, and that in an initial position of the included angle is a sharp or an obtuse angle, which is during the adjustment of the furniture component enlarged, possibly up to an angle directly below 180 °. In the initial position, the spindle nut is retracted, i. it is adjacent to the spindle driving the transmission. Conveniently, the angular ratios should be designed so that in the extended end position of the spindle nut, the two levers are at an angle of almost 180 °, so that the extended position can not be achieved so that when returning the furniture component, the levers are not in a blocking position. The exact arrangement of Möbelverstellvorrichtung depends, as already mentioned, on the design of the furniture.

Thus, it is provided that the Möbelverstellvorrichtung is arranged between two parallel and mutually spaced furniture beams, and that the spindle or that the spindles of a consisting of a drive motor and a Drehzahlreduziergetriebe drive units is driven in rotation. This embodiment offers the advantage that the coupling arrangements arranged on the mutually facing sides of the furniture uprights can be actuated by a drive unit. As a result, for example, two synchronously adjustable spars of a furniture part are actuated by the two slides. Such an execution is used in a preferred embodiment for the adjustment of the backrest or the foot part of a slatted frame.

The arrangement of the spindles can be done in various ways. Thus, it is provided that the spindle is integrally formed and extends over the area between the two furniture beams, and that the sections on both sides of the drive unit with threads of the same pitch, however, are formed in opposite directions, i. one section has a right-hand thread and the other section a left-hand thread. Alternatively, it is also possible that the Möbelverstellvorrichtung two arranged on both sides of the drive unit and thus drivingly coupled spindles that the threads have the same slopes and the same pitch directions, but that the two spindles are driven in opposite directions rotating.

The spindles need not be driven directly by the drive unit, but in a further embodiment it is provided that the Möbelverstellvorrichtung is equipped with two rotatable drivable spindles, which are arranged on both sides of the drive unit, that the spindles are rotatably connected to each other via a common coupling shaft, that the coupling shaft is drivable by the drive unit and that the pitches of the spindles are the same, but in opposite directions. This embodiment has the advantage that only one coupling shaft is necessary for both spindles, that the Möbelverstellvorrichtung is equipped with two rotatably driven spindles, that each spindle is rotatably connected by a coupling shaft, and that the directions of rotation of the clutch shafts are in opposite directions, and that the slopes the spindles are the same and run in the same direction.

For easy connection of each coupling shaft with the drive unit is provided that each coupling rod has a polygonal cross-section or a profiled, the spindles facing end portion, and that the coupling shafts have corresponding inner recesses. The coupling rod or the coupling rods are inserted with their end portions closing in the inner recesses of the coupling shafts, so that a positive connection is formed. This design accounts for mechanical fasteners.

According to a further embodiment, the output member of the drive unit is directly connected to at least one spindle in a drive connection and the output member is coupled via a profiled cross section with the spindle. Alternatively, the drive unit with at least one spindle by means of a coupling rod in a drive connection.

It is further provided that the spindle nut is formed like a block and is provided on the outside with extending in the spindle longitudinal guide webs and guide grooves. As a result, the Unverdrehbarkeit the block-like spindle nut is additionally increased. So that the guide webs and guide grooves can engage in corresponding counterparts, it is provided that the Möbelverstellvorrichtung is installed in a substantially closed protective housing, which is fixed to stationary furniture uprights or movable furniture components and inside designed in the field of spindle nut or spindle nuts as counterparts guide webs and having guide grooves for the spindle nut. The protective housing also provides protection against contamination of the Möbelverstellvorrichtung and also serves the accident protection.

In the furniture adjusting device in question, a drive module is formed from the drive unit of each spindle and the spindle nut mounted thereon. As a result, in the normal configuration, the furniture adjusting device has two drive modules. From the reversing lever or from the reversing levers and the slider or the slides and possibly the protective housing or the protective housings, an actuating module is accordingly formed in each case, which causes the adjusting movement of the lever or the furniture component.

In another embodiment, the actuation module can essentially consist of at least one deflection lever, a spindle and a spindle nut.

Since the furniture adjusting device according to the invention is used in particular when the installation spaces are relatively small, it is provided in a further embodiment that between the spindle or the spindles and the Drehzahlreduziergetriebe a flexible shaft, a speedometer shaft or universal joints are interposed. The drive unit formed by the drive motor and the Drehzahlreduziergetriebe could then be spatially separated from the spindles or the coupling rods.

In another embodiment, at least one lever is pivotally connected to the spindle nut and is arranged in the manner of a chain behind the other. The first lever can be on the side facing away from the spindle nut with a guided slide in operative connection or act directly on the cam of the furniture component. For this purpose, at least one lever is guided at least on the spindle nut, or it can be performed in an arcuate guide means a plurality of lever. This lever could then also be referred to as a push chain, which may consist at least in sections of guide webs, guide grooves and the like or at least partially formed from an arcuate hollow profile.

According to another embodiment, the spindle nut is fixed, but rotatingly mounted according to the aforementioned embodiments. In the internal thread of the spindle nut, a spindle is used, which is rotatably guided. When the spindle nut rotates, it moves in its longitudinal direction.

The furniture component to be moved may be formed as a surface support member for the planar support of body parts of all kinds, for example, the legs or the arms and be arranged pivotable about said axis of rotation about this. In another embodiment, the furniture component substantially consists of one or more rods or levers, which are coupled to a surface support member to pivot it, for example, about an axis of rotation.

By said drive unit said furniture components are adjusted by an electric motor. Another embodiment provides a manual operation, wherein the handle is designed as a wheel, as a lever or crank and is fixed or pluggable with at least one spindle in drive connection. Thus, a manual emergency adjustment can be done for example in case of power failure. In another Embodiment, the drive unit is formed by the manual operation itself.

It is further provided that the protective housing is designed so that over certain areas of the walls or over the entire protective housing, the forces generated are absorbed and ablatable.

Reference to the accompanying drawings, the invention will be explained in more detail.

Figur 1

die erfindungsgemäße Möbelverstellvorrichtung in Ansicht und in perspektivischer Darstellung

Figur 2

eine Seite der Möbelverstellvorrichtung gemäß der Figur 1 mit teilweise abgenommenem Schutzgehäuse in der abgesenkten Stellung des Möbelbauteiles

Figur 3

eine der Figur 2 entsprechende Darstellung, jedoch mit angehobenem Möbelbauteil

Figur 4

eine Seite der Möbelverstellvorrichtung gemäß der Figur 1 in einer zur Figur 2 ausgeführten Variante

Figur 5

eine Seite der erfindungsgemäßen Möbelverstellvorrichtung gemäß der Figur 1 in einer zur Figur 3 ausgeführten Variante

Figur 6

eine Seite der erfindungsgemäßen Möbelverstellvorrichtung entsprechend der Ausführung gemäß der Figur 2 in vergrößerter Darstellung und

Figuren 7 und 8

eine weitere Ausführungsform der erfindungsgemäßen Möbelverstellvorrichtung in zwei verschiedenen Stellungen des zu verstellenden Möbelbauteils, jeweils in Teilansichten.

Show it:

FIG. 1

the furniture adjustment device according to the invention in view and in perspective

FIG. 2

one side of the furniture adjusting device according to the figure 1 with partially removed protective housing in the lowered position of the furniture component

FIG. 3

a representation corresponding to Figure 2, but with raised furniture component

FIG. 4

one side of the Möbelverstellvorrichtung according to the figure 1 in a running to Figure 2 variant

FIG. 5

one side of the furniture adjusting device according to the invention according to the figure 1 in a running to Figure 3 variant

FIG. 6

a side of the furniture adjusting device according to the invention according to the embodiment of Figure 2 in an enlarged view and

FIGS. 7 and 8

a further embodiment of the furniture adjustment device according to the invention in two different positions of the furniture component to be adjusted, in each case in partial views.

The furniture adjusting device 10 shown in Figure 1 is designed for adjusting the backrest or the foot part of a bed base, not shown. However, this embodiment is to be seen as an example, as will be explained below. In the illustrated embodiment, the Möbelverstellvorrichtung 10 is equipped with a arranged in a housing 11 drive unit, which consists for example of an electric drive motor and a downstream Drehzahlreduziergetriebe in the form of a worm drive. On both sides of the housing 11 formed as molded parts protective housing 12, 13 are mounted, in which the drive parts are explained in more detail mounted. The protective housing 12, 13 are fixed to stationary furniture beams 14, 15, which are parallel and spaced apart. These furniture rails 14, 15 could be the frame members of a slatted frame. At these stationary furniture beams 14, 15 can rotatably mounted lever 16, 17 on the inside fixed pins. If the furniture is a slatted frame, this could be the side uprights of the adjustable backrest or the adjustable footrest.

Contrary to the representation, the furniture uprights 14, 15 could be omitted and the protective housing 12, 13 could protrude into this area with appropriate design.

FIGS. 2 and 3 show a first embodiment of the furniture adjusting device according to the invention. For reasons of simplified illustration, however, only the upper area is shown, in particular because the Möbelverstellvorrichtung 10 can also be used exclusively for the adjustment of a lever 16. Within the partially cut protective housing 12, a spindle 18 is arranged, on which a spindle nut 19 is mounted, which is secured against rotation. The spindle 18 is mounted with the end facing away from the drive unit in a rolling bearing 20, as the figure 6 shows most clearly. The spindle 18 is coupled in the embodiment according to Figures 2 and 3 via a coupling shaft 21 with the output member of the drive unit. The coupling shaft 21 is provided with an inner profiling 22 so that it can be connected to a corresponding rod with the drive unit. In the illustrated embodiment, the inner profile 22 is a hexagon socket. Like the figures 2, 3 and 6, the drive unit facing away from the surface of the spindle nut 19 acts on the region of two deflection levers 23, 24 which connects the two lever 23, 24 hinged together. As FIGS. 2 and 3 show, the lever 16 is rotatably mounted on a bolt 25 fixedly inserted into the protective housing 12. For better stability, the bolt 25 is formed longer and projects beyond the edges of the protective housing 12. In this case, the bolt 25 may also be used in addition to the furniture rail 14. The lever 16 is provided with a cam 26, on which a slidably guided in a linear guide slider 27 engages. The slider 27 facing the bell crank 24 presses on the facing surface or is in contact with this. The slider 27 opposite the bell crank 23 is also rotatably mounted with its free end portion on a pin 28. In another embodiment, the reversing lever 23 is inserted positively into a recess of the protective housing 12 and articulated.

The embodiments of Figures 4 and 5 differ essentially in that the spindle 18 is driven directly by the drive unit, and that consequently no further connection elements to the spindle nut 19 are required. While in the embodiments according to Figures 2, 3 and 6, the spindle nut is provided with guide webs 29 and guide grooves 30, the spindle nut according to the figures 4 and 5 outside smooth surface. These guide webs 29 and guide grooves 30 can be seen especially in FIG. As a comparison of Figures 2-6 shows, each protective housing 12, 13 is formed in two parts, wherein the drive unit facing region is an elongated member, the furniture spar 14 facing part is a molding, which is adapted to the execution.

In this case, the elongated component is designed to be adaptable, in particular adapted to be adjustable lengthwise. Thus, for different sized furniture, the lengths of the elongated components vary and, for example, to the width of a slatted frame, while the actuation module and the drive unit 11 are designed to be identical. The elongated components are characterized in that they are formed by one or more spindles, the coupling rod, the spindle nut, a profile, a hollow profile or combinations thereof are. Analogously, the Möbelverstellvorrichtung could be divided into three main features, especially in at least one actuation module, at least one elongate member and at least one drive unit.

In the lowered position of the levers 16, 17 are the two lever 23, 24 at an obtuse angle to each other, which is above 90 °. If, by switching on the drive unit, the spindle nut 19 is moved in the direction of the furniture rail 14, this angle is reduced according to FIGS. 3 and 5, but should be just below 180 °, so that the deflection levers 23, 24 are not moved into a blocking position. Since the levers 16 facing away from the lever 23 is fixedly mounted with its free end, the opposite end of the reversing lever 24 moves in the direction of the bolt 25 for supporting the lever 16. In this case, the slider 27 presses on the cam 26 of the lever 16. Durch the applied torque, the lever 16 is then pivoted.

FIGS. 7 and 8 show a further embodiment of the adjusting device 10 according to the invention. This adjusting device could in turn be mounted between two furniture uprights 14, 15. For the sake of simplified illustration, however, only the drive train is shown, which is arranged laterally next to the drive unit 11. In turn, a spindle nut 19 is placed on the spindle, not shown. The power is redirected by a plurality of pivotally interconnected lever 31, which are designed in their entirety in the manner of a push chain. The spindle nut 19 facing away from the last lever 31 is pivotally connected to the slider 27, which in turn acts on the cam 26 of the lever 16. Contrary to the presentation of this last lever could also be coupled articulated to the cam 26. This embodiment has the advantage that under certain circumstances commercially available components can be used. Figure 7 shows the lever 16 in the lowered position, while Figure 8 shows the lever 16 in the erected position.

FIG. 1 shows that the drive unit having the housing 11 is arranged centrally between the two levers 16, 17. Analogously, this drive could also be referred to as a double drive or as a double drive, since the mutually spaced levers 16, 17 are driven. If the furniture, however is designed so that only one lever 16 or 17 must be swiveled, can be omitted a laterally standing next to the drive unit drive train. The drive unit could then be mounted as close as possible to the lever 16, 17 to be pivoted. Unless the installation conditions permit otherwise, the drive unit can be mounted at a free point within the furniture. The connection can then take place, for example, via a flexible shaft, via a tachometer cable or via one or more universal joints.

The invention is not limited to the illustrated embodiment. It is essential that each to be adjusted lever 16 or 17 of at least one lever 23, 24 is linearly movable, and this lever is pivoted by the linearly moving spindle nut 19. In this case, a deflection of the force applied by the spindle nut 19 force must be done by 90 °. Furthermore, it is essential that the axis of rotation of the spindle 18 or the spindles 18 runs parallel and at a distance from the pivot axis of the lever 16 or 17.

Claims (28)

Furniture adjustment device, with at least one spindle (18) on which a spindle nut (19) movable in the longitudinal direction of the spindle (18) is placed, and in that a movable furniture component (16, 17) can be moved by means of at least one coupling arrangement (16, 17, 27) is, characterized in that each spindle (18) is arranged parallel and at a distance from the axis of movement of the furniture component (16, 17) determining axis, and that the coupling arrangement (16, 17, 27) from at least one of the thrust force of the spindle nut (19 ) transversely to the direction of movement diverting lever (23, 24). Furniture adjusting device according to claim 1, characterized in that the coupling arrangement consists of two one-armed, hingedly interconnected reversing levers (23, 24), that the joint opposite end portion of a first reversing lever (23, 24) is fixedly mounted, and that of the joint opposite End region of the second deflection lever (24) on a in a transverse to the spindle (18) extending guide guided slide (27) is hinged. Furniture adjusting device according to claim 1 or 2, characterized in that the deflection levers (23, 24) have the same lengths, or that at least the distances of the hinge points are equal or approximately equal. Möbelverstellvorrichtung according to claim 1 or 2, characterized in that the lengths of the lever (23, 24) are in a certain relationship to one another, so that a predetermined movement of the furniture component to be adjusted, in particular a uniform movement, can be achieved. Furniture adjustment device according to one or more of the preceding claims 1 - 4, characterized in that at least the joints of the lever (23), but preferably all joints are positively connected and connected together. Acts directly or indirectly 5, characterized in that the slide (27) or the deflection lever (23, 29, 31) on a cam (26) of a moveable part (16, 17), - Möbelverstellvorrichtung according to one or more of the preceding claims 1 and that the contact area between the cam (26) and the slider (27) is offset from the axis of rotation of the furniture part (16, 17). Furniture adjusting device according to one or more of the preceding claims 1-5, characterized in that the slide (27) by means of a linearly movable intermediate piece on the cam (26) of the movable furniture part (16, 17) acts. Möbelverstellvorrichtung according to one or more of the preceding claims 1-7, characterized in that the two articulated mutually coupled, one-armed lever (23, 24) in the region of their coupling contact the facing surface of the slide (27), and that in an initial position of the enclosed Angle is a sharp or an obtuse angle, which increases during the adjustment of the furniture part, possibly up to an angle directly below 180 °. Möbelverstellvorrichtung according to one or more of the preceding claims 1-8, characterized in that the Möbelverstellvorrichtung (10) between two parallel and spaced apart extending furniture beams (14, 15) is arranged, and that the spindle (18) or the spindles (18 ) is or can be driven in rotation by a drive unit (11) consisting of a drive motor and a speed reduction gear. Möbelverstellvorrichtung according to one or more of the preceding claims 1-9, characterized in that the spindle (18) is integrally formed and extends over the area between the furniture uprights, and that the sections on both sides of the drive unit (11) with threads of the same pitch but in opposite directions Have history. Furniture adjusting device according to one or more of the preceding claims 1-9, characterized in that the furniture adjusting device (10) two on both sides of the drive unit (11) and thus drive-coupled spindles (18), that the spindles (18) threads of the same pitch and the same direction However, counter-rotating are drivable. Furniture adjusting device according to claim 11, characterized in that the Möbelverstellvorrichtung (10) is equipped with two rotatable drivable spindles, that the spindles (18) via a common clutch shaft (21) are rotatably connected to each other, and that the coupling shaft (21) of the drive unit (11) is drivable and that the slopes of the two spindles are equal but opposite. Furniture adjusting device according to claim 11, characterized in that each spindle (8) by means of a coupling shaft (21) is rotatably connected to each other, and that the directions of rotation of the coupling shafts are in opposite directions, and that the pitches of the spindle (18) are equal and in the same direction. Furniture adjusting device according to claim 11 or 12, characterized in that each coupling shaft (21) has a profiled inner cross-section, and in that in this profiling of the drive unit (11) drivable coupling rods are used closing. Furniture adjusting device according to one or more of the preceding claims 1-14, characterized in that the output member of the drive unit (11) directly with at least one spindle (18) in a drive connection and is coupled via a profiled cross-section with the spindle (18). Furniture adjusting device according to claim 15, characterized in that the drive unit (11) by means of a further spindle (18) and by means of a coupling rod (21) is in drive connection. Furniture adjusting device according to one or more of the preceding claims 1-16, characterized in that the spindle nut (19) is formed block-like and is provided on the outside with extending in the spindle longitudinal guide webs (29) and guide grooves (30). Furniture adjusting device according to one or more of the preceding claims 1-17, characterized in that the Möbelverstellvorrichtung (10) in a substantially closed protective housing (12, 13) is installed, which is fixed to stationary furniture uprights (14, 15) or movable furniture components and on the inside guide webs and guide grooves for the spindle nut (19). Furniture adjusting device according to one or more of the preceding claims 1-18, characterized in that from the drive unit (11) of the spindle (18), the spindle (19) is formed a drive module. Furniture adjustment device according to one or more of the preceding claims 1 - 19, characterized in that from the reversing lever (23 or 24) or from the reversing levers (23, 24), the slide (27) and optionally the protective housing (12, 13) Actuating module is formed. Furniture adjusting device according to one or more of the preceding claims 1 - 20, characterized in that a control module is formed from a reversing lever, a spindle and a spindle nut. Möbelverstellvorrichtung according to one or more of the preceding claims 1 - 21, characterized in that between each spindle (18) or each coupling shaft (21) and the drive unit, a flexible shaft, a speedometer shaft or one or more universal joints are mounted. Furniture adjustment device according to one or more of the preceding claims 1 - 22, characterized in that the furniture component to be adjusted is designed as a surface support member and that the coupling device substantially consists of one or more rods or levers that are coupled to the furniture component. Möbelverstellvorrichtung according to one or more of the preceding claims 1 - 23, characterized in that the drive unit (11) is designed as a manual actuation unit, which is formed with a handwheel, a lever or a crank and this handle fixed or pluggable with at least one spindle in drive technology Connection stands. Furniture adjustment device according to claim 1, characterized in that at least one reversing lever (31) is pivotally connected to the spindle nut (19) and that the reversing lever consists of several hingedly interconnected levers. Furniture adjustment device according to claim 25, characterized in that the lever formed by a plurality of levers on the spindle nut (19) facing away from side with a slide (27) is operatively connected, which acts on a cam (26) of a component to be adjusted (16). Furniture adjustment device according to claim 24 or 25, characterized in that the lever formed from a plurality of hingedly interconnected levers (31) is guided in an arcuate guide, which is at least partially formed of guide webs, guide grooves or a hollow profile. Furniture adjusting device according to one or more of the preceding claims 1 - 26, characterized in that the protective housing 12 is designed such that over certain areas of the walls or over the entire protective housing (12), the forces generated are absorbable and ablatable.

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