WO2017108512A1

WO2017108512A1 - Drive device for a furniture hinge, furniture fitting, and piece of furniture

Info

Publication number: WO2017108512A1
Application number: PCT/EP2016/080912
Authority: WO
Inventors: Markus Herper; Boris Kruedener; Mathias Rohner; Martin Staude
Original assignee: Grass Gmbh & Co. Kg
Priority date: 2015-12-23
Filing date: 2016-12-14
Publication date: 2017-06-29
Also published as: EP3394374A1; EP3394374B1; DE202015107036U1

Abstract

The invention relates to a drive device (10, 15, 16, 17, 20, 29) for a furniture part pivot assembly (8, 9, 18, 19) with which a furniture part (7) can be pivoted relative to a furniture body in a use state. The furniture part pivot assembly (8, 9, 18, 19) comprises a movement element (13, 24) which carries out a forward movement in the use state when the furniture part (7) is pivoted in a first direction, and the movement element (13, 24) carries out a backward movement when the furniture part (7) is pivoted in a second direction. The drive device (10, 15, 16, 17, 20, 29) has an electric drive unit (12, 17, 31) for acting on the furniture part pivot assembly (8, 9, 18, 19). According to the invention, a drive device (10, 15, 16, 17, 20, 29) transmission element (14, 23) is provided which can be coupled to the furniture part pivot assembly (8, 9, 18, 19) and which converts a linear movement that can be provided by the drive unit (12, 17, 31) into a forward and backward movement of the movement element (13, 24).

Description

"Drive device for a furniture hinge, furniture fitting and furniture"

State of the art

In modern interiors furniture come with movable furniture front side covering or releasing furniture parts used, the movement of the furniture part

user-friendly and quiet.

For this purpose, guide arrangements for the movable guidance of the furniture part are known relative to a furniture body. When

Leadership arrangement comes for example one

Furniture part pivoting arrangement in question, for example a

Furniture hinge or a furniture fitting for a furniture flap or a furniture door. The guide arrangement can be provided with a drive device. In a furniture hinge or fitting a moving element is present, which performs a forward movement in a use state, if the

Furniture part pivots in a first direction, and one

Execution moves when the furniture part pivots in a direction opposite to the first direction second direction. As a drive device is for example an electric or a motor drive unit for acting on the furniture pivot part arrangement in question.

Purpose and advantages of the invention

The object of the present invention is to provide a

Drive device for a furniture part pivoting arrangement

to provide, which is kinematic and economically advantageous compared to known arrangements, in particular with regard to a flexible applicability for different configurations or types of

Furniture part swivel arrangement.

This object is solved by the independent claims. The dependent claims relate to advantageous

Further developments of the invention.

The invention is based on a drive device for a furniture part pivoting arrangement, with which a furniture part is pivotable relative to a furniture carcass in a use state, wherein the furniture part pivoting arrangement comprises a movement element which executes a forward movement in the use state when the furniture part pivots in a first direction, and

Movement performs a movement when the furniture part pivots in a direction opposite to the first direction second direction, wherein the drive device is an electrical

Drive unit for acting on the

Furniture part pivoting arrangement has. The

Möbelteilschwenkanordnung is for example a

Furniture hinge or a furniture fitting for a furniture flap or a furniture door. Under a pivoting of the furniture part is an exclusive folding or rotating movement to be understood as well as a movement of the furniture part, a Klappbzw. Rotary motion includes and beyond another

Movement type shows how B. a linear movement, the z. B. phased alone or possibly the folding or. rotary motion overlapping takes place when moving the furniture part with the furniture part pivoting arrangement.

The gist of the invention is that a at the

Furniture part pivoting arrangement coupled transfer element of the drive device is provided, which transmits a provided by the drive unit linear motion in a reciprocating motion of the moving member. Preferably, the movement coupling is designed such that a linear movement of a linear element of the drive unit in the reciprocating motion of the movement element of the

Furniture part pivoting arrangement leads. It is preferred if the linear movement of the linear element into a first

Linear direction leads to the forward movement of the moving element and a linear movement of the linear element in a direction opposite to the first linear motion second linear direction leads to the movement of the moving member. This results in the overall movement two positions in which a

Direction of movement reversal of the linear element and the

Movement element takes place. As a rule, a reversal of motion of the transmission element then takes place in each case.

With the proposed drive device can

advantageously a flexibly usable

Be provided driving device, wherein the

Drive device for different furniture hinges and furniture fittings and for different heavy furniture parts is used.

For example, a reliable drive can be provided for moving furniture parts, which have a comparatively greater weight. Previously necessary furniture part swivel arrangements, which must be designed differently depending on the weight class of the furniture part or work with mutually different kinematics, and heavy

Furniture parts consuming, heavy or large building, can be inventively avoided. The proposed

Drive device can be uniform or universal for all practice-relevant purposes with different heavy furniture parts or different flap or door weights are used.

In addition, with the drive device according to the invention, a mechanical power storage for the

Möbelteilschwenkanordnung dispensable. The drive device according to the invention accordingly preferably has no

Power storage on which an arm of the

Furniture part pivoting arrangement applied. The

Drive device preferably comprises no mechanical energy storage such as a spring assembly, which is mounted on an element of the furniture pivoting part such. B. one

Hinge or actuator arm acts. In all active states of the furniture pivoting part the necessary forces for movement and to hold a movement position of the furniture part or the variable forces are provided by the electric drive unit.

The Möbelteilschwenkanordnung is preferably as a fitting or hinge, in particular as a flap fitting or

Hinge like a top flap fitting or a

Upper flap hinge formed.

The Möbelteilschwenkanordnung includes, for example, a furniture part section which is associated with the furniture part or is connectable to the furniture part, and a body portion which is connectable to the furniture body. The following is for the

Furniture hinge part arrangement according to the invention also uses the term furniture hinge or furniture fitting.

The furniture hinge according to the invention can be used in particular for pivotable furniture parts, in particular preferably for an upper flap or another furniture flap with a horizontally oriented pivot axis or for a furniture door with a vertical pivot axis.

An advantageous variant of the furniture part pivoting arrangement characterized in that the furniture pivoting arrangement comprises two separate pivoting units, which are spaced from each other on the furniture for pivoting the furniture part are provided, and wherein each pivoting unit a

Movement element comprises, which in use a

Moves out when the furniture part in a first

Direction pivots, and the moving member performs a reciprocating movement when the furniture part pivots in a direction opposite to the first direction second direction. In the case of two pivoting units on the furniture part, there is preferably exactly one electric drive unit for providing a linear movement with which a reciprocating movement of the respective moving element takes place via a transmission element acting on the moving element. The connection of the drive motor with the two pivoting units advantageously comprises a connection shaft rotatably driven by the drive unit.

It is also advantageous that conversion means for

geared implementation of a rotational movement of a

Rotary shaft of the electric drive unit are provided in the linear movement provided by the drive unit linear movement. The linear movement relates to the linear element. This can save space and with a comparatively high

Efficiency of the electric drive unit the

Linear motion can be realized. Preferably that is

Linear element within an extension of an envelope surface of the electric drive unit spatially present or the linear element takes laterally to the electric drive unit, a space which is transverse to the axis of rotation of the rotary shaft within a range corresponding to approximately one half the width of the electric drive unit.

With the conversion means can be realized in addition to the change in the direction of movement advantageously also other functionalities. The conversion means are preferably z. B. designed so that a desired translations or

Reductions of the electric drive unit power or speed that can be supplied. This can different performance or speed classes of

Drive unit, which are provided for example for higher or lower speeds or powers are advantageously used.

Furthermore, it is advantageous that the ümsetzmittel a

Have spindle nut. A spindle nut is a simple, compact and mechanically stable component. The

Spindle nut preferably has an opening through which a spindle or a threaded rod can pass. Thus, an interaction of spindle nut and spindle can take place in a confined space. The spindle nut has a transmission contour such as a thread or a spiral tooth profile, preferably inside or at the opening, wherein the

Transmission contour can interact with an outside transmission contour as an external thread on the spindle. With the interaction are adjusting means for stepless

Adjustment of the transmission element realized by means of a rotary and a linear movement.

According to a further advantageous variant of the invention, the electric drive unit rotatably drives a spindle nut, wherein a spindle is linearly movable with the spindle nut. The spindle is z. B. a threaded rod or a threaded rod. The linear movement axis of the spindle preferably coincides with the axis of rotation of the spindle nut or is parallel thereto. The spindle nut can interact, for example, with a shaft of the electric drive unit directly via a toothing, via intermeshing threaded sections and the like with a drive shaft of the electric drive unit or be driven by this. For this purpose, preferably on an outer side of the spindle nut for

Torque transmission a transmission contour available. The axis of rotation of the spindle nut can in the extension of

Rotary axis of the drive shaft of the electric drive unit lie or coincide with this or be offset in parallel or at an angle, optionally under Interposition of a transmission such as a worm and / or angular gear.

It is also advantageous that the ümsetzmittel a

Have spindle assembly with a spindle. The spindle, such as a threaded rod, has in particular an external transmission contour, such as an external thread or a spiral tooth profile and the like. Thus, the spindle by intermeshing by a spindle nut meshing with this cooperate, wherein the rotation of the one element causes a linear movement of the other element.

An additionally advantageous embodiment of the invention

is characterized by the fact that the electric

Drive unit rotatably drives a spindle, wherein the spindle, a spindle nut is linearly movable.

It is also advantageous that the transmission element couples to a hinged movement arm of the furniture part pivoting arrangement.

The movement arm is preferably the movement element. The movement arm is preferably a lever element or a hinge arm of a furniture hinge or a furniture fitting, which is accommodated in particular at two bearing points such. B. is hinged to two axes. The movement arm belongs to the parts of the furniture pivoting arrangement, which is located in

Use state of Möbelteilschwenkanordnung move when the furniture part is pivoted.

If necessary, another movement element of the furniture part pivoting arrangement can act on the movement arm.

Preferably, the transmission element engages the movement arm in such a way that a lever action or a moment on the movement arm can be realized with a force that can be provided by the transmission element, wherein the respective ones

Hinge parts under the action of the transmission element are movable. The interaction is especially kinematic advantageous or mechanically stable, low-friction and safe motion. Under the float of the

Bewegungsarms is thus the furniture part in the use of the

Furniture part pivoting arrangement relative to the furniture body advantageous off and swung.

The movement arm is preferably for example an arm such. B. a cross arm of a wide-angle hinge or a

Multiple joints such. B. a four-joint.

It is also preferred that exactly one connection point between the transmission element and the movement element or between the transmission element and the movement arm of the furniture hinge is set up. A coupling between the transmission element and the movement arm is in particular articulated or movable.

Another advantageous modification of the subject invention is characterized in that the transmission element is provided articulated on the drive device. Preferably, the articulation of the transmission element on the

Linear element of the drive unit set. This is a space-saving and optimized kinematics between the

Transmission element and the drive device achieved. The transmission element is preferably connected directly or indirectly to the linear element or the spindle nut or the spindle. Advantageously, a jerk-free and rounder

Movement in the movement and power transmission of the linear motion in the reciprocating motion of

Movement element allows.

It is also advantageous that the transmission element is articulated to the furniture pivoting arrangement. The articulated connection of the transmission element to the

Möbelteilschwenkanordnung promotes a jerk-free and

uniform Kinemathek or movement and power transmission between the parts concerned. It is also advantageous that the electrical

Drive unit without translation acts on the transmission element. For example, the drive unit without transmission act on the transmission element, for example a

Output shaft of an electric motor on the linear element directly z. B. act combing, so that the linear element rotates, for example, with the speed of the output shaft. Preferably, the speed of the electric motor is controllable, for example via a higher-level control unit, which accomplishes the operation of the drive unit.

The invention also extends to a

Möbelteilschwenkanordnung for a piece of furniture, especially on a furniture hinge or a furniture fitting, with the

Furniture part pivoting arrangement in a use state, a furniture part is pivotable relative to a furniture body, wherein

According to the invention a drive device according to one of the above embodiments is provided. The

Furniture part pivoting arrangement comprises in particular a

Movement element which performs a forward movement in the use state when the furniture part pivots in a first direction, and performs a reciprocating movement when the furniture part pivots in a direction opposite to the first direction second direction. The furniture hinge can be formed, for example, without energy storage.

The invention also relates to a piece of furniture with a furniture part that is relative to a furniture body of the furniture

is pivotable, according to the invention a

Furniture part pivoting arrangement is provided as described above. Thus, for example, designed as a wall unit furniture with an upper flap can be advantageously designed, especially if a comparatively high flap weight is observed.

As a rule, in the case of wider or larger upper flaps, two furniture part pivoting arrangements according to the invention each having an electric drive unit are provided, one on the right and left z. B. at an upper flap corner area. It is also possible that on a furniture flap exactly one

Inventive furniture pivoting arrangement with electric drive and a conventional furniture part pivoting arrangement without

Electric drive is provided.

figure description

Further features and advantages of the invention are based on the invention shown schematically in the figures

Embodiments of the invention explained in more detail. in the

Individual shows

Figure 1 is a schematic furniture according to the invention

in perspective from the front with a furniture part pivoting arrangement according to the invention when the furniture flap is open,

Figure 2 shows the arrangement of Figure 1 from the side in one

Vertical section

FIG. 3 shows a detail of the piece of furniture according to FIG. 1 in section according to FIG. 2 with the furniture flap closed;

FIG. 4 shows the furniture according to FIG. 1 in a perspective view with two furniture part pivoting arrangements according to the invention with the furniture flap open;

Figure 5 shows the furniture of Figure 4 with two according to the invention

powered swivel units one

Furniture part swivel assembly,

6 shows a furniture body with furniture flap according to the furniture from FIGS. 1 to 5 with an alternative furniture part pivoting arrangement according to the invention with the furniture flap open in perspective from the front, FIG. the arrangement according to Figure 6 from the side in a vertical section, a detail of the furniture of Figure 6 in section according to Figure 2 with the furniture flap closed, the furniture of Figure 6 in a perspective view from the front with two invention

Swivel units of a Möbelteilschwenkanordnung invention with open furniture flap, the furniture of Figure 9 with an alternative Möbelteilschwenkanordnung with two driven pivot units, a highly schematic view of the invention Möbelteilschwenkanordnung without housing on the piece of furniture shown in Figures 6 to 8 with partially open furniture flap and a schematic shown another alternative drive device according to the invention without a

Transmission element with a housing shown cut.

In the figures, the same reference numerals are partially corresponding elements of different

Embodiments of the invention used.

The exemplary embodiments according to FIGS. 1 to 11 are based on a similar type of furniture according to the invention with a furniture main body comprising a furniture carcass and an am

Furniture carcass movably received furniture part, as

Upper flap 7 is designed. The furniture is an example of a wall unit 1, for example, a kitchen equipment, the attachable or suspendable to a wall.

The furniture body of the upper cabinet 1 comprises two

opposite vertical side walls 2 and 3, a

Bottom 4, a cover 5 and a rear wall 6. The

Upper flap 7 is movable with an inventive

Furniture part pivoting arrangement or drive device with an electric drive unit 10 in an opening direction PI and in a closing direction P2, wherein in FIGS. 1 and 2 the maximum open position of the top flap 7 is shown.

The movement of the upper flap 7 results for example from a pivoting movement about a substantially horizontal axis, wherein the pivoting movement is superimposed by a movement when opening forward from the furniture body away, and back to the furniture body back when the upper flap 7 closes. In order for a abutment of an upper edge of the upper flap 7 on the furniture body or the cover 5 is avoided.

The Möbelteilschwenkanordnung has a purely mechanical part, which by a furniture fitting 8 at the

Side wall 2 is formed, on which the electrical or electromechanical drive unit 10 according to the invention acts. The furniture fitting 8 will not be described in detail since the furniture fitting 8 such as a known

Upper flap fitting can be designed.

On an inner side 2 a of the side wall 2, a part of the furniture part fitting 8 is fixed, the hinged with an attacking on the upper flap 7 further part of the

Furniture part fitting 8 is connected.

Another to the mechanical part of the furniture part fitting 8 kinematically equivalent furniture part fitting 9 is partially hidden in Figure 1. The furniture fitting 9 is added to the inside of the side wall 3 and engages the top flap 7. The furniture part fittings 8, 9 comprise a plurality of fitting elements, which are mutually movable, in particular fitting arms. The furniture part fittings 8, 9 may be designed as a multi-axis joints such as a four-bar linkage, for example, for a maximum opening angle of about 100 degrees or more.

The electric drive unit 10 is over

Supply lines controlled by a higher-level control unit with sensors and a computing unit, these components are not shown or not visible. The electric drive unit 10 comprises a housing section 11 with a first end face which is opposite the furniture part fitting 8 and to which an electric motor 12 of the

Drive unit 10 is present. With the in the

Housing section 11 reaching into drive unit 10 is a linear movement of a reciprocating

Linear element provided, which is covered by the housing portion 11. A transmission element 14 of the drive unit 10 protrudes from the front side of the housing portion 11 and acts on a moving element 13. The moving member 13 is a movable part or a fitting arm of the mechanical part of the furniture pivoting part or the

Furniture part fitting 8.

Due to the motor-driven reciprocating motion of the linear element and thus the reciprocating motion of the

Transmission element 14, which may be linear or not purely linear, for example coupled with a pivoting movement, and the moving member 13 is reciprocated. An end position after the forward movement, Figures 1 and 2, whereas Figure 3 shows a further end position after

Represents a movement.

When opening the top flap 7 in the direction of PI from the

Closed position on the furniture body according to Figure 3 is by

Energization of the drive unit 10, the transmission element 14 and with this the movement element 13 in the direction P3

moved (see Figure 2), so that the opening state according to the Figures 1 and 2 is achieved. The electric motor 12 stops in the reached end or open position of the upper flap 7. The other furniture fitting 9 simultaneously provides the appropriate kinematics without electric drive. About a self-locking mechanism of the two furniture fittings 8, 9 is the swung-up upper flap 7 in the

Opening position held securely.

To close the open upper flap 7 in the direction P2, the drive unit 10 is driven so that the electric motor 12 rotates in the opposite direction to opening and thus a linear movement of the linear element in the reciprocation of the transmission element 14 and the movement element 13 in the direction P4. With the achievement of the closed position of the upper flap 7 on the upper cabinet 1 according to Figure 3 stops the

Electric motor 12. The furniture fitting 9 works

according to the furniture fitting 8.

A variant of an upper cabinet according to the invention 1 according to Figures 1 to 3, Figure 4, wherein in contrast to the embodiment of Figures 1 to 3 of

Furniture part fitting 9 as the upper flap fitting 8 also has a drive unit 15 according to the invention. The control of the two drive units 10 and 15 or their simultaneous operation is the same with the control unit.

According to Figure 5, a variant of the embodiment of Figure 4 is shown, wherein only exactly one electrical

Electric motor 17 for both drive units 10 and 15

is provided. The electric motor 17 drives a rigid

Synchronous rod 15 rotating in both directions of rotation P5, which each end a torque at the two

Provides drive devices 10 and 15, which there is each a linear reciprocating motion of a respective linear element can be provided. The axial position of the electric motor 17 along the synchronizer rod 16 is

preferably freely selectable. Figures 6 to 8 and 11 show an alternative to the figures 1 to 3 upper cabinet 1, wherein instead of

Furniture part fittings 8, 9, the upper flap hinges 18 and 19 are provided with a drive unit 20 on the upper flap hinge 18. The upper flap hinges 18 and 19 act comparable or corresponding to the furniture part fittings 8 and 9.

The drive unit 20 has a housing section 11

Interior fittings and an electric motor 12. Of the

Electric motor 12 drives a spindle 21 rotating in the

Turning directions P6 on. A on a male thread 21a of the spindle 21 meshing spindle nut 22 is a linear element which is linear hinbewegbar when opening the top flap 7 in the direction PI and linearly movable in the direction P2 when closing the top flap. On the spindle nut 22 a flat rod-like transmission element 23 is hinged, which is connected at the other end articulated to a moving element or a hinge arm 24 of the upper flap hinge 18. The linear reciprocating motion of the spindle nut 22 is translated into a reciprocating motion of the transmission member 23 and thus the hinge arm 24, resulting in a common movement of the movable hinge arms of the upper flap hinge 18, thus accomplishing the opening and closing of the upper flap 7.

In Figure 11 is a schematic section of the

Upper cabinet 1 according to the view of Figure 8 shown, but with partially open upper flap 7 and below

Leaving a in Figure 11 only dashed lines indicated housing 11 of the drive unit 20. At one with a

Output shaft 25 of the electric motor 12 firmly connected

Shaft section 28 is a smaller-diameter pinion 26 rotatably present, which meshes with a larger diameter rotatably mounted pinion 27 and thus rotatably connected to the pinion 27 spindle 21 rotatably drives in the directions of rotation P6.

Figure 9 shows a variant of Figures 6 to 8, wherein both upper flap hinges 18 and 19 each one

Drive unit 20 has.

FIG. 10 shows a variant of the arrangement according to FIG. 9, with exactly one instead of the two electric motors 12

Electric motor 17 is provided, which drives a rigid rotatably mounted synchronizing rod 16, which on the two

Drive units 20 acts, as described in connection with the embodiment of Figure 5.

Finally, FIG. 12 shows an alternative drive unit 29 having a housing 30, an electric motor 31 and a housing

electrically polished spindle 32 which is rotatable about the spindle axis S according to P9. To supply the drive unit 29 extends a connecting cable 33 through the housing 30. With the spindle 32, which at a pivot point 32a with a

Transmission element is preferably articulated, the linear movement of the drive unit 29 and the spindle 32 is provided in the directions P7 and P8.

On a printed circuit board 34 inductive tooth counter 35, 36 are provided to detect the absolute and / or relative position of the spindle 32 via an external thread 37 of the spindle 32.

Via a first worm gear 38, a second

Worm gear stage 39 and a third

Worm gear stage 40 and with a meshing on the spindle 32 rotatable spindle nut 41, a translation of the rotational speed of the electric motor 31 is realized on the spindle 32. The fully in Figure 12 in the direction P8 at the

Drive unit 29 retracted shown spindle 32 extends forward through an opening 48 in the housing 30 to the outside. At the outer protruding end portion of the spindle 32 is the

Anlenkstelle 32a available.

The spindle nut 41 is rotatable relative to the spindle axis S but axially fixed in position between two plain bearings 42 and 43 and two thrust bearings 44 and 45, each having a ceramic ring 46th axially spaced from the spindle nut 41, in the housing 30 linearly movable.

Outside the housing 30 protruding lugs 47 are provided for releasable plug connection to the furniture.

Reference sign list:

25 output shaft

1 wall unit 26 pinions

2 side wall 27 pinion

2a inside 28 shaft section

3 Sidewall 29 Drive unit

4 bottom 30 housing

5 cover 31 electric motor

6 rear wall 32 spindle

7 top flap 32a external thread

8 Furniture component fitting 33 Connection cable

9 furniture fitting 34 printed circuit board

10 Drive unit 35 Tooth counter

11 housing section 36 tooth counter

12 electric motor 37 external thread

13 movement element 38 worm gear stage

14 transmission element 39 worm gear stage

15 Drive unit 40 Worm gear stage

16 synchronous rod 41 spindle nut

17 electric motor 42 plain bearing

18 Upper flap hinge 43 plain bearing

19 Upper flap hinge 44 Thrust bearing

20 Drive unit 45 Thrust bearing

21 spindle 46 ceramic ring

21a external thread 47 nose

22 Spindle nut 48 opening

23 transmission element

24 hinge arm

Claims

Claims :

1. Drive device (10, 15, 16, 17, 20, 29) for a furniture part pivoting arrangement (8, 9, 18, 19) with which in a use state, a furniture part (7) is pivotable relative to a furniture body, wherein the furniture part pivoting arrangement ( 8, 9, 18, 19) comprises a movement element (13, 24), which in

Useful state performs a forward movement, when the furniture part (7) pivots in a first direction, and the moving member (13, 24) performs a reciprocating movement when the furniture part (7) pivots in a direction opposite to the first direction second direction, wherein the drive device (10 , 15, 16, 17, 20, 29) has an electric drive unit (12, 17, 31) for acting on the furniture pivoting arrangement (8, 9, 18, 19), characterized in that a on the furniture pivoting arrangement (8, 9, 18, 19) coupled to the transmission element (14, 23) of the drive device (10, 15, 16, 17, 20, 29) is provided which one of the drive unit (12, 17, 31)

providable linear motion in a reciprocating motion of the moving member (13, 24) transmits.

2. Drive device according to claim 1, characterized

characterized in that conversion means are provided for the geared conversion of a rotational movement of a rotary shaft (25) of the electric drive unit (12, 17, 31) into the linear movement provided by the drive unit (12, 17, 31).

3. Drive device according to claim 1 or 2, characterized in that the conversion means comprises a spindle nut (22, 41).

4. Drive device according to one of the preceding

Claims, characterized in that the electrical

Drive unit (31) rotatably drives a spindle nut (41), wherein with the spindle nut (41) a spindle (32) is linearly movable.

5. Drive device according to one of the preceding claims, characterized in that the conversion means comprise a spindle arrangement with a spindle (21, 32).

6. Drive device according to one of the preceding

Claims 1 to 3 and 5, characterized in that the electric drive unit (12, 17) rotatably drives a spindle (21), wherein with the spindle (21) a spindle nut (22) is linearly movable.

7. Drive device according to one of the preceding

Claims, characterized in that the

Transmission element (14, 23) on a hingedly mounted arm (13, 24) of the furniture part pivoting arrangement (8, 9, 18, 19) couples.

8. Drive device according to one of the preceding

Claims, characterized in that the

Transmission element (14, 23) articulated on the drive device (10, 15, 20, 29) is present.

9. Drive device according to one of the preceding

Claims, characterized in that the

Transmission element (14, 23) on the furniture pivoting part (8, 9, 18, 19) is articulated.

10. Drive device according to one of the preceding

Claims, characterized in that the electrical

Drive unit without translation acts on the transmission element.

11. Möbelteilschwenkanordnung (8, 9, 18, 19) for a furniture (1), in particular furniture hinge (18, 19) or furniture fitting (8, 9), wherein the furniture part pivoting arrangement (8, 9, 18, 19) in a use state a furniture part (7) relative to a

Furniture carcass is pivotable, characterized in that a drive device (10, 15, 16, 17, 20, 29) is provided according to one of the preceding claims.

12. Furniture (1) with a furniture part (7) which is pivotable relative to the furniture body of the furniture (1), wherein a furniture part pivoting arrangement (8, 9, 18, 19) is provided according to claim.