Drives for furniture or architectural fittings

Abstract

A drive (5), preferably an ejection device, for a furniture fitting (4) or architectural fitting comprises at least one housing (8), at least one adjustment device (11) movable relative to the housing (8), at least one spring (12) for applying a force to the at least one adjustment device (11), the at least one spring (12) being coupled at a first end to the at least one adjustment device (11), and at least one support device (13) supporting the at least one spring (12) at a second end to the at least one housing (8), the at least one support device (13) being adjustable relative to the at least one housing (8) over a limited travel.

Description

[Technical Field]

[0001] The present invention relates to a drive device, preferably an ejector device, for furniture or building fittings, comprising: - at least one housing; - at least one adjustment device movable relative to the housing; - at least one spring for applying a force to the at least one adjusting device, the at least one spring being coupled at a first end to the at least one adjusting device; at least one support device supporting the at least one spring at a second end in the at least one housing; The present invention relates to a drive device comprising:

[0002] Furthermore, the invention relates to a furniture or building fitting provided with a drive device as described below.

[0003] Furthermore, the invention relates to a piece of furniture comprising a furniture cabinet, a furniture part supported so as to be movable relative to the furniture cabinet, and at least one drive device as described below.

[0004] Such a drive device is used, for example, to retract a movably supported furniture part relative to a furniture cabinet into a closed end position and / or to extend it from a closed end position to an open position relative to the furniture cabinet by means of a spring force. For furniture parts having different sizes or weights, it is desirable to individually determine the spring force. This means that if a retraction and / or extension force that is too high or too low acts on a movable furniture part, the user will feel uncomfortable. A higher spring force is required for a heavy movable furniture part than for a light furniture part. If an additional damping device is combined with a drive device in the form of a retraction device, the retraction force of the spring must also be adapted accordingly.

[0005] The object of the present invention is to improve the drive device of the initially mentioned category in such a way that the above-mentioned drawbacks are avoided.

[0006] This problem is solved according to the invention by the features of claim 1. Further advantageous embodiments of the invention are described in the dependent claims.

[0007] According to the invention, it is envisaged that the at least one support device is adjustable relative to the at least one housing over a limited travel.

[0008] In other words, the position of the support device at which the spring is fixed can be adjusted to different positions relative to the housing, thus making it possible to adjust both the maximum spring force and the spring deflection, which allows for an individual adaptation of the spring force to the furniture part to be moved.

[0009] According to a preferred embodiment, it may be envisaged that the at least one support device is adjustable between a first position and at least one second position, the at least one spring being tensioned more in the second position than in the first position, and at least one release device is provided which can return the at least one support device from the second position to the first position, preferably under the action of the at least one spring.

[0010] Such a release device is advantageous because the position of the support device can be returned to the starting position in which the spring is minimally tensioned by immediate action of the user operating the release device, thus eliminating the need for multiple rotations of the rotatably supported operating element to reduce the spring force.

[0011] According to one embodiment, the release device may have at least one release element, preferably linearly movable, which is directly accessible from a position outside the housing of the drive device for manual operation or for operation performed using a tool.

[0012] At least one support device may be returned from a second position to a first position by an operation performed manually or using a tool, preferably under the action of at least one spring.

[0013] As the spring, preferably, a mechanical spring element in the form of a compression spring, a tension spring, or a torsion spring may be used.

[0014] Further details and advantages of the present invention will be described based on the following description of the drawings.

Brief Description of the Drawings

[0015] [Figure 1] It is a perspective view showing furniture including a furniture cabinet and a furniture part supported movably relative to the furniture cabinet. [Figure 2] It is a perspective view showing a furniture fitting in the form of a drawer guide together with a drive device for driving a movable furniture part. [Figure 3a] It is a perspective view showing a first embodiment of a drive device. [Figure 3b] It is a plan view showing a first embodiment of a drive device. [Figure 4a] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 3a and 3b. [Figure 4b] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 3a and 3b. [Figure 4c] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 3a and 3b. [Figure 4d] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 3a and 3b. [Figure 4e] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 3a and 3b. [Figure 5a] It is a perspective view showing a second embodiment of a drive device. [Figure 5b] It is a plan view showing a second embodiment of a drive device. [Figure 6a] It is a perspective view showing a third embodiment of the drive device. [Figure 6b] It is a plan view showing a third embodiment of the drive device. [Figure 7a] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 6a and 6b. [Figure 7b] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 6a and 6b. [Figure 7c] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 6a and 6b. [Figure 7d] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 6a and 6b. [Figure 8a] It is a perspective view showing a fourth embodiment of the drive device. [Figure 8b] It is a plan view showing a fourth embodiment of the drive device. [Figure 9a] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 8a and 8b. [Figure 9b] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 8a and 8b. [Figure 9c] It is a diagram showing the chronological order for adjusting the spring force of the drive device according to FIGS. 8a and 8b. [Figure 10a] [[ID=3)5]]It is a diagram showing a slightly modified embodiment of the drive device according to FIGS. 3a, 3b, 4a to 4e. [Figure 10b] It is a diagram showing a slightly modified embodiment of the drive device according to FIGS. 3a, 3b, 4a to 4e. [Figure 10c] [[ID=)1]]It is a diagram showing a slightly modified embodiment of the drive device according to FIGS. 3a, 3b, 4a to 4e.

[0016] 1 is a perspective view of a piece of furniture 1 comprising a furniture cabinet 2 and a furniture part 3 supported so as to be movable relative to the furniture cabinet 2. In the illustrated embodiment, the movable furniture part 3 is supported so as to be movable relative to the furniture cabinet 2 via at least one furniture fitting 4 in the form of a drawer guide 4a for a drawer. The movable furniture part 3 is formed in this embodiment in the form of a drawer 3a, which has a front panel 3b, side walls 3c, a drawer bottom panel 3d and a back wall 3e.

[0017] By means of the drive 5, the movable furniture part 3 can be retracted into a closed end position relative to the furniture cabinet 2 and / or can be extended, starting from the closed end position, into an at least partially open position relative to the furniture cabinet 2. The drive 5 can be configured, for example, as a retracting and / or extending device.

[0018] In the case of a retraction device, it is preferably provided that the drive device 5 has a spring 12 (FIG. 3a) and a follower which is exerted with force by the spring 12 and which can be releasably connected to the movable furniture part 3, and which can be retracted into a closed end position by means of the follower and the force of the spring 12.

[0019] In the case of the ejection device, it is preferably envisaged that the drive device 5 has a spring 12 (Fig. 3a), a movable ejection element to which force is applied by the spring 12, and a locking device for locking the ejection element in a locked position. The ejection element can be unlocked by overpressing the movable furniture part 3 into an overpressed position which is located behind the closed position of the movable furniture part 3, and the movable furniture part 3 can then be ejected in the opening direction by the force of the spring 12 when the ejection element is unlocked.

[0020] FIG. 2 shows a perspective view of a furniture fitting 4 in the form of a drawer guide 4a for a drawer, together with a drive 5 for driving the movable furniture part 3.

[0021] The drawer guide 4a for the drawer has a cabinet rail 6 that can be attached to the furniture cabinet 2 via at least one attachment portion 6a. Furthermore, the drawer guide 4a for the drawer has at least one drawer rail 7 that can run relative to the cabinet rail 6, and this drawer rail 7 can be coupled to the drawer 3a.

[0022] The drive device 5 for driving the movable furniture part 3 has a housing 8, which is coupled or detachably coupleable to the furniture fitting 4. Alternatively, the housing 8 of the drive device 5 may be integrated into the furniture fitting 4.

[0023] In the illustrated embodiment, the drive 5 has a synchronizing device 9, and the movement of the drive 5 can be synchronized with the movement of another drive 5 located opposite in the furniture cabinet 2 via a synchronizing rod (not shown here).

[0024] By means of a rotatably supported adjusting wheel 10 the closed end position of the drawer rail 7 (and thus of the movable furniture part 3 ) relative to the furniture cabinet 2 can be adjusted.

[0025] FIG. 3a is a perspective view showing a first embodiment of the driving device 5. The driving device 5 includes: at least one housing 8; at least one adjusting device 11 movable relative to the housing 8; at least one spring 12 for applying a force to the at least one adjusting device 11, the at least one spring 12 being coupled at a first end to the at least one adjusting device 11; at least one support device 13 supporting the at least one spring 12 at its second end in the at least one housing 8; It is equipped with:

[0026] The adjusting device 11 is connected or detachably connectable to the movable furniture part 3 , whereby the movement of the adjusting device 11 can be transmitted to the movable furniture part 3 .

[0027] According to the invention, it is envisaged that the at least one support device 13 is adjustable over a limited travel relative to the at least one housing 8. In this way, both the maximum spring force and the spring deflection are adjustable, which allows an individual adaptation of the spring force to the furniture part 3 to be moved.

[0028] According to one embodiment, it may be envisaged that the at least one support device 13 is adjustable between a first position and at least one second position, the at least one spring 12 is tensioned more in the second position than in the first position, and a release device 14 is provided which can return the at least one support device 13 from the second position to the first position, preferably under the action of the at least one spring 12.

[0029] According to a possible embodiment, the at least one release device 14 comprises: - has at least one, preferably saw-toothed, locking profile 15a; and / or - the release device 14 has at least one release position in which it releases the at least one support device 13 and at least one locking position in which it locks the at least one support device, and at least one spring element 16 is provided to preload the release device 14 into the locking position relative to the housing 8; and / or - supported so as to be movable relative to the housing 8 in a direction transverse to the longitudinal direction L of the at least one spring 12; and / or - at least one release element 14a arranged outside the housing 8 and configured for manual operation; It may be assumed that.

[0030] The release device 14 has the advantage that it can immediately return the at least one spring 12 to a minimum stress, without requiring multiple rotations of the rotatably supported adjustment element.

[0031] According to a possible embodiment, the at least one support device 13 comprises: - movable relative to the housing 8, preferably linearly movable; and / or - supported so as to be movable in a direction parallel to the longitudinal direction L of at least one spring 12; and / or - guideable relative to the housing 8 via at least one guide device 17, preferably having at least one guide track 17a and at least one guide element 17b engageable in the guide track 17a; and / or - be substantially L-shaped or substantially U-shaped; and / or - has at least one operating element 18 arranged outside the housing 8 and designed for manual operation It may be assumed that.

[0032] In the illustrated embodiment, the guide track 17a is arranged or formed on the housing 8, and the guide element 17b is arranged or formed on the support device 13. Of course, it is also possible kinematically to arrange the guide track 17a on the support device 13 and the guide element 17b on the housing 8 in the opposite way.

[0033] By means of the locking device 15, the at least one support device 13 can be releasably locked to the at least one housing 8. The locking device 15 can, for example, have at least one locking contour 15a and at least one locking element 15b (FIG. 3b) engageable with the locking contour 15a.

[0034] The housing 8 has a fastening surface 29 for resting against the furniture fitting 4 or against a furniture part, and the release element 14a of the release device 14 is supported so as to be movable in a plane parallel to the fastening surface 29 of the housing 8. This has the particular advantage that the release element 14a of the release device 14 can be operated from the side, in which case the drive device 5 can be designed very flat.

[0035] The at least one support device 13 and the at least one release device 14 are formed as two structural units that are movably supported on the housing 8 independently of one another.

[0036] At least one spring 12 can be tensioned by means of an operating element 18 of the support device 13. The spring 12 can be relaxed by means of a release element 14a of the release device 14, which is separate from the operating element 18.

[0037] The operating element 18 of the support device 13 is supported so as to be movable in the longitudinal direction L of the at least one spring 12 and parallel to a fixing surface 29 of the housing 8 .

[0038] The release element 14 a of the release device 14 is supported so as to be movable transversely to the longitudinal direction L of the at least one spring 12 and parallel to a fixing surface 29 of the housing 8 .

[0039] Figure 3b shows a plan view of the drive device 5 according to Figure 3a, with the force of the spring 12 adjusted to a minimum value. To adjust the position of the support device 13 relative to the housing 8, the operating element 18 is pressed in direction X and the locking element 15b is movable against the force of the spring element 16, preferably a compression spring, preferably along a sawtooth-shaped locking contour 15b and along a guide track 19 arranged on the housing 8, which preferably runs linearly and / or parallel to the longitudinal direction L of the spring 12.

[0040] Thus, the locking element 15b can be releasably locked in two or more pre-set positions along the locking contour 15a, whereby two or more different respective forces of the spring 12 are adjustable.

[0041] According to a possible embodiment: - a locking element 15b is arranged on at least one support device 13, and / or the locking element 15b is substantially cylindrically shaped; and / or - there is provided at least one guide track 19 arranged on the housing 8, in which the locking element 15b can be guided; It may be assumed that.

[0042] According to a possible embodiment, the locking contour 15a is - movable relative to the housing 8, preferably linearly movable; and / or - movable relative to the housing 8 against the force of the spring element 16; and / or - movable transversely to the direction of movement of the support device 13; and / or - Sawtooth, wavy, or semicircular in shape It may be assumed that.

[0043] 4a to 4e show a time sequence for adjusting the force of the spring 12 of the drive device 5 according to the embodiment of FIGS. 3a and 3b.

[0044] FIG. 4 a shows that the position of the support device 13 can be adjusted by manually applying pressure to the operating element 18 in the direction X relative to the housing 8, starting from the first locking position of the locking element 15 b according to the preceding FIGS. 3 a, 3 b, in which the stress of the spring 12 is set to a minimum value.

[0045] For guiding the support device 13, at least one guide element 17b is provided, which is arranged on the support device 13 and is movable, preferably linearly, along a guide track 17a arranged on the housing 8.

[0046] Furthermore, the locking element 15b arranged on the support device 13 can be guided along a preferably sawtooth-shaped locking contour 15a of the housing 8, and the locking element 15b is additionally guided along a preferably linearly extending guide track 19 of the housing 8.

[0047] The guide element 17b and / or the locking element 15b may be substantially cylindrically shaped.

[0048] Figure 4b shows the locking element 15b of the support device 13 in a second locking position, in which the stress of the spring 12 is increased relative to the first locking position of the locking element 15b according to Figures 3a, 3b.

[0049] FIG. 4 c shows that the locking element 15 b of the support device 13 can still be guided along the locking contour 15 a of the housing 8 by continued pressure on the operating element 18 .

[0050] Figure 4d shows the locking element 15b of the support device 13 in a third locking position, in which the stress of the spring 12 is increased with respect to the first locking position according to Figures 3a, 3b and with respect to the second locking position according to Figure 4b.

[0051] In the illustrated embodiment, three different locking positions of the locking element 15b are thus provided, which define three different stresses of the spring 12. Of course, more locking positions of the locking element 15b can also be provided if required.

[0052] It is also possible to provide stepless adjustability of the locking element 15b instead of a preset locking position, however the preset locking position has the advantage that the user has an auxiliary position for selecting the appropriate spring stress, which allows for a quick adjustment of the spring force.

[0053] Figure 4e shows that the release element 14a of the release device 14 has been moved against the force of the spring element 16 in the direction Y transverse to the longitudinal direction L of the spring 12. This allows the locking element 15b to be released from the locking contour 15a of the housing 8. Starting from the third locking position, the locking element 15b (together with the support device 13) can then be returned by the action of the spring 12 to the position in which the force of the spring 12 is set to its minimum (see Figures 3a and 3b).

[0054] FIG. 5 a shows a second embodiment of the drive device 5 with an adjustment device 20 for adjusting the position of the support device 13 relative to the housing 8 .

[0055] According to a possible embodiment, the adjustment device 20 comprises: - at least one adjusting wheel 20a, 20b, which is arranged in the housing 8 so as to be rotatable about an axis extending transversely to the longitudinal direction L of the at least one spring 12, and / or which has at least one operating contour 21 on its circumferential side, which is arranged at least partially outside the housing 8 and is designed for manual operation; and / or - at least one helical guide link 22 cooperating with a plurality of spaced apart projections 23; It may be assumed that.

[0056] In the illustrated embodiment, a helical guide link 22 is arranged on at least one adjusting wheel 20a, 20b, and a projection 23 cooperating with this guide link 22 is arranged on a support device 13 which is movable relative to the housing 9. Naturally, the opposite arrangement is also possible here.

[0057] Figure 5b shows a plan view of the drive device 5 according to Figure 5a. The support device 13 is here substantially C-shaped and at least one spring 12 is connected to the support device 13. By rotating the adjusting wheels 20a, 20b, the position of the support device 13 in the longitudinal direction L of the spring 12 relative to the housing 8 and thus the effective force of the spring 12 can be adjusted.

[0058] At least one adjusting wheel 20a, 20b may be connected to the support device 13 via a worm transmission, in which case a protrusion 23 arranged on the support device 13 engages in a helical guide link 22 of the adjusting wheel 20a, 20b.

[0059] FIG. 6 a shows a third embodiment of the drive device 5 with at least one pivot lever 24 for adjusting the position of the support device 13 relative to the housing 8 .

[0060] According to a possible embodiment, the at least one pivot lever 24 is - has at least one grip element 24a arranged on the outside of the housing 8 and configured for manual operation; and / or - supported in the housing 8 so as to be pivotable about an axis 25, preferably over an angular range of approximately 180°; and / or - supported linearly in the housing 8 over a limited travel, and / or - connected to at least one support device 13 via at least one connecting device 26, which preferably has at least one connecting profile 26a and at least one connecting element 26b engageable with said connecting profile 26a; It may be assumed that.

[0061] In the illustrated embodiment, the connecting profile 26a is arranged on the support device 13 and the connecting element 26b is arranged on the pivot lever 24. Naturally, the opposite arrangement is also possible here.

[0062] The position of the support device 13 relative to the housing 8 is adjustable in a direction extending parallel to the longitudinal direction L of the spring 12 by pivoting movement of a pivot lever 24 about an axis 25 and via a coupling device 26 .

[0063] Figure 6b shows a plan view of the drive device 5 according to Figure 6a. It can be seen that the shaft 25 is guided with play in the slot 28 of the pivot lever 24, so that the pivot lever 24 can be supported linearly on the housing 8 over a limited travel.

[0064] The substantially semicircular locking contour 15a can have at least one locking segment 27a, 27b, 27c, preferably two or more locking segments 27a, 27b, 27c for releasably locking the pivot lever 24.

[0065] In this embodiment, three locking segments 27a, 27b, 27c are provided, by means of which the pivoting lever 24 can be releasably locked in three different pivot positions and thus three different preloads of the spring 12 can be adjusted. For locking, the pivoting lever 24 is manually moved into one of the locking segments 27a, 27b, 27c.

[0066] The locking section 27 a extends substantially parallel to the longitudinal direction L of the at least one spring 12 .

[0067] 7a to 7d show the time sequence for adjusting the spring force of the drive device 5 according to FIGS. 6a and 6b.

[0068] 7a shows that the position of the support device 13 relative to the housing 8 can be adjusted by movement of the pivoting lever 24 about an axis 25. The coupling element 26b of the pivoting lever 24 is movable along the coupling contour 26a of the support device 13 and along the locking contour 15a of the housing 8.

[0069] 7b shows that the pivot lever 24 is pushed into the locking section 27b. This linear movement is made possible by the shaft 25 which is movable in the slot 28.

[0070] FIG. 7 c shows the continued movement of the pivot lever 24 about the axis 25 , the coupling element 26 b of the pivot lever 24 being movable along the locking contour 15 a of the housing 8 .

[0071] 7d shows the coupling element 26b located in the locking section 27a, which extends substantially parallel to the longitudinal direction L of the spring, and the coupling element 26b of the pivoting lever 24 is pulled into the locking section 27b by the action of the spring 12.

[0072] FIG. 8 a shows a fourth embodiment of the drive device 5 with a pivot lever 24 for adjusting the position of the support device 13 relative to the housing 8 .

[0073] According to a possible embodiment, the pivot lever 24 is - has at least one grip element 24a arranged on the outside of the housing 8 and configured for manual operation; and / or - connected to at least one support device 13 via at least one connecting device 26, which preferably has at least one connecting profile 26a and at least one connecting element 26b engageable with said connecting profile 26a; and / or - mounted on the support device 13 so as to be pivotable about an axis 25 It may be assumed that.

[0074] FIG. 8b shows a plan view of the drive device 5 according to FIG. 8a.

[0075] 9a to 9c show the time sequence for adjusting the spring force of the drive device 5 according to FIGS. 8a and 8b, in which the pivot lever 24 is arranged on the support device 13 around the axis 25.

[0076] FIG. 9 a shows that the coupling element 26 b of the pivot lever 24 can be moved along the locking contour 15 a by applying a manual force to the pivot lever 24 .

[0077] 9b shows that the coupling element 26b of the pivot lever 24 can be moved into the first locked position by manual movement of the pivot lever 24 about the axis 25. Possibly a locking spring can be used here, which applies a force to the pivot lever 24 in the direction of the locked position.

[0078] 9c shows that the coupling element 26b of the pivot lever 24 can be moved to another locking position in which the spring 12 is under a stronger stress than in FIG. 9b. By moving the pivot lever 24 about the axis 25 and by applying a manual pulling movement to the pivot lever 24, the lock between the pivot lever 24 and the locking contour 15a can be released again.

[0079] 10a to 10c show a slightly modified embodiment of the drive device 5 according to FIGS. 3a, 3b and 4a to 4e.

[0080] FIG. 10a shows a drive device 5 comprising a housing 8, springs 12 for applying a force to an adjustment device 11, and a support device 13 supporting at least one spring 12 at one end on the housing 8.

[0081] The support device 13 can be guided relative to the housing 8 via a guide device 17. In the illustrated embodiment, the guide device 17 has two separate guide elements 17b which can be guided along a guide path 17a.

[0082] The housing 8 has at least one notch 30 for at least partially accommodating the spring element 16 .

[0083] According to a possible embodiment, the release element 14a of the release device 14 comprises: - is arranged substantially flush with the outer surface 31 of the housing 8; and / or - has at least one projection 33 for bearing against the spring element 16; and / or - be partially retractable within the housing 8; and / or - can be placed in a preferably substantially hopper-shaped recess 32 of at least one housing (8); and / or - supported so as to be movable parallel to the fixed surface 29 (Fig. 3a) of the housing 8; and / or - supported so as to be movable transversely to the longitudinal direction L of the at least one spring 12; It may be assumed that.

[0084] To adjust the position of the support device 13 relative to the housing 8, the operating element 18 is pressed in the longitudinal direction L of the spring 12. The locking element 15b is movable against the force of a spring element 16, preferably a compression spring, preferably along a saw-tooth shaped locking contour 15b.

[0085] In the illustrated embodiment, the locking element 15b has a corresponding contour that fits onto the locking contour 15a. In Fig. 10a, the locking element 15b is located at the first end of the locking contour 15a and the force of the spring 12 is adjusted to a minimum value.

[0086] FIG. 10b shows another position of the support device 13 relative to the housing 8, in which the locking elements 15b are located at the tips of the sawtooth locking contours 15b.

[0087] 10c shows another position of the support device 13 relative to the housing 8, in which the locking element 15b is located at the second end of the locking contour 15b. The force of the spring 12 is adjusted to its maximum value.

[0088] The drive 5 can be used for a furniture fitting 4 in the form of a drawer guide 4a for a drawer, or for another type of furniture fitting 4, for example in the form of an actuating drive for a furniture hinge or flap, or in combination with an architectural fitting, for example for a window or door.

Claims

1. A drive device (5) for a furniture fitting (4) or a building fitting, preferably an ejection device, at least one housing (8), at least one adjusting device (11) movable relative to said housing (8); at least one spring (12) for applying a force to said at least one adjusting device (11), said at least one spring (12) being connected at a first end to said at least one adjusting device (11); at least one support device (13) supporting said at least one spring (12) at its second end on said at least one housing (8); A drive device (5) comprising: A drive device (5), characterized in that said at least one support device (13) is adjustable relative to said at least one housing (8) over a limited travel.

2. 2. The drive device (5) according to claim 1, wherein the at least one support device (13) is adjustable between a first position and at least one second position, the at least one spring (12) is tensioned more strongly in the second position than in the first position, and at least one release device (14) is provided which can return the at least one support device (13) from the second position to the first position, preferably under the action of the at least one spring (12).

3. the at least one release device (14) is supported so as to be movable relative to the housing (8) in a direction transverse to the longitudinal direction (L) of the at least one spring (12), the release device (14) having at least one release element (14a) arranged outside the housing (8) and / or receivable at least partially within the housing (8) and configured for manual operation, the at least one support device (13) is supported so as to be movable in a direction parallel to the longitudinal direction (L) of the at least one spring (12), the support device (13) having at least one operating element (18) separate from the at least one release element (14a) of the release device (14), the operating element (18) being arranged outside the housing (8) and configured for manual operation, and / or - the at least one support device (13) and the at least one release device (14) are formed as two structural units movably supported independently of each other on the housing (8), and / or the housing (8) has a fastening surface (29) for bearing against the furniture fitting (4) or against a furniture part, the release device (14) having at least one release element (14a) supported so as to be movable in a plane parallel to the fastening surface (29) of the housing (8); 3. A drive device (5) according to claim 2.

4. The at least one release device (14) - have at least one, preferably saw-toothed, locking profile (15a), and / or the release device (14) has at least one release position in which it releases the at least one support device (13) and at least one locking position in which it locks the at least one support device (13), and at least one spring element (16) is provided to preload the release device (14) into the locking position relative to the housing (8), preferably the at least one housing (8) has at least one notch (30) for at least partially accommodating the spring element (16) and / or the at least one release element (14a) of the release device (14) is arranged substantially flush with the outer surface (31) of the housing (8); A drive device (5) according to claim 2 or 3.

5. The at least one release device (14) - supported so as to be movable relative to the housing (8) in a direction transverse to the longitudinal direction (L) of the at least one spring (12); and / or - has at least one release element (14a) arranged outside the housing (8) and / or receivable at least partially within the housing (8) and designed for manual operation; and / or - has at least one release element (14a) movable against the force of a spring element (16) to return said at least one support device (13), and / or - has at least one release element (14a) that can be positioned in a preferably substantially hopper-shaped recess (32) of said at least one housing (8), and / or - at least one release element (14a) with at least one projection (33) for bearing against the spring element (16); A drive device (5) according to any one of claims 2 to 4.

6. The at least one support device (13) - movable, preferably linearly movable, relative to said housing (8); and / or - supported so as to be movable in a direction parallel to the longitudinal direction (L) of said at least one spring (12); A drive device (5) according to any one of claims 1 to 5.

7. The at least one support device (13) - guideable relative to said housing (8) via at least one guide device (17), preferably said at least one guide device (17) having at least one guide track (17a) and at least one guide element (17b) engageable in said guide track (17a); and / or - substantially L-shaped or substantially U-shaped; and / or - at least one operating element (18) arranged outside the housing (8) and designed for manual operation, preferably having a longitudinal extension extending transversely or obliquely to the longitudinal direction (L) of the at least one spring (12); A drive device (5) according to any one of claims 1 to 6.

8. 8. The drive device (5) according to claim 1, further comprising at least one locking device (15) capable of releasably locking the at least one support device (13) to the at least one housing (8), the locking device (15) preferably having at least one locking contour (15a) and at least one locking element (15b) engageable in the locking contour (15a).

9. - said locking element (15b) is arranged on said at least one support device (13), and / or - the locking element (15b) is substantially cylindrically shaped or has a corresponding contour that matches the locking contour (15a), and / or - there is provided at least one guide track (19) arranged on said housing (8) and capable of guiding said locking element (15b); A drive device (5) according to claim 8.

10. The locking contour (15a) - movable, preferably linearly movable, relative to said housing (8); and / or - movable relative to said housing (8) against the force of a spring element (16); A drive device (5) according to claim 8 or 9.

11. The locking contour (15a) - movable transversely to the direction of movement of said support device (13), and / or - serrated, wavy or semicircular in shape; and / or - has at least one locking section (27a) extending substantially parallel to the longitudinal direction (L) of said at least one spring (12), A drive device (5) according to any one of claims 8 to 10.

12. At least one adjustment device (20) is provided for adjusting the support device (13) relative to the housing (8), and preferably the adjustment device (20) comprises: - at least one adjusting wheel (20a, 20b) arranged in the housing (8) so as to be rotatable about an axis extending transversely to the longitudinal direction (L) of the at least one spring (12) and / or having at least one operating contour (21) on the circumferential side arranged at least partially outside the housing (8) and designed for manual operation; and / or - has at least one helical guide link (22) cooperating with a plurality of spaced apart projections (23); A drive device (5) according to any one of claims 1 to 11.

13. 13. The drive device (5) according to claim 1, further comprising at least one pivoting lever (24) by means of which the support device (13) can be adjusted relative to the housing (8).

14. The at least one pivot lever (24) - has at least one grip element (24a) arranged on the outside of said housing (8) and designed for manual operation, and / or - supported on said housing (8) or on said support device (13) so as to be pivotable about an axis (25), preferably over an angular range of approximately 180°; and / or - supported linearly on said housing (8) over a limited travel, and / or - connected to said at least one support device (13) via at least one connecting device (26), preferably said connecting device (26) having at least one connecting profile (26a) and at least one connecting element (26b) engageable with said connecting profile (26a); A drive device (5) according to claim 13.

15. A furniture or building fitting (4) comprising at least one drive (5) according to any one of claims 1 to 14.

16. A piece of furniture (1) comprising a furniture cabinet (2), a furniture part (3) supported so as to be movable relative to the furniture cabinet (2), and at least one drive device (5) according to any one of claims 1 to 14 or at least one furniture fitting (4) according to claim 15 for driving the movable furniture part (3) relative to the furniture cabinet (2).

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