초록 ▼

A furniture drive which is embodied as a double drive and used to move parts of a piece of furniture in relation to each other. The furniture drive comprises two drive units, each one having a linearly movable drive element for pivoting a pivot lever which co-operates with a part to be moved of the

A furniture drive which is embodied as a double drive and used to move parts of a piece of furniture in relation to each other. The furniture drive comprises two drive units, each one having a linearly movable drive element for pivoting a pivot lever which co-operates with a part to be moved of the piece of furniture when the furniture drive is in the assembly position. The linearly movable drive element or an actuating element connected thereto comprises a recess into which the pivot lever projects in the radial direction thereof when the furniture drive is in the assembled position. An inner wall of the recess forms a bearing surface for the pivot lever. The furniture drive has a low overall height and a simple design, and can thus be produced economically.

대표청구항 ▼

The invention claimed is: 1. A furniture drive with a linearly moveable drive element that pivots a pivot lever for adjusting support elements of a support device for a cushion of an article of furniture, wherein the pivot lever is in functional connection with a support element to be moved, wherei

The invention claimed is: 1. A furniture drive with a linearly moveable drive element that pivots a pivot lever for adjusting support elements of a support device for a cushion of an article of furniture, wherein the pivot lever is in functional connection with a support element to be moved, wherein the linearly movable drive element includes an adjusting spindle and spindle nut through which said adjusting spindle extends, wherein said linearly movable drive element comprises an actuating element connected to the adjusting spindle, said actuating element being provided with a recess into which said pivot lever extends in a radial direction of said pivot lever, wherein said recess has a first inner wall that forms an abutment surface for said pivot lever, wherein said abutment surface is an essentially planar surface, wherein the abutment surface contacts the pivot lever, and wherein the abutment surface in a direction of a linear moving axis of the drive element is located at an end of the recess facing away from the spindle, wherein the drive element and actuating element being adjusted by the furniture drive pulls the pivot lever to move the support element. 2. A furniture drive according to claim 1, wherein said pivot lever is provided with at least one lever arm, wherein in said abutment surface, or in a region of said abutment surface, at least one slot is provided for receiving said at least one lever arm of said pivot lever in one end position of an adjustment movement, wherein said pivot lever is furthermore provided with an abutment member, and wherein said pivot lever, at a distance from said one slot, rests against said abutment surface via said abutment member. 3. A furniture drive according to claim 2, wherein said abutment member extends essentially parallel to a pivot axis of said pivot lever. 4. A furniture drive according to claim 1, wherein said pivot lever has a fork-shaped configuration with two parallel and spaced-apart lever arms, wherein said pivot lever is provided with an abutment member, and wherein said abutment member is held between said lever arms of said pivot lever. 5. A furniture drive according to claim 4, wherein said abutment surface is formed on a projection, and wherein an inside width between said lever arms of said pivot lever essentially corresponds to, or is greater than, a dimension of said projection in this direction. 6. A furniture drive according to claim 4, wherein in said abutment surface, or in the region of said abutment surface, two slots are formed that are spaced apart parallel to a pivot axis of said pivot lever and that extend essentially perpendicular to said pivot axis, and wherein said slots are provided for receiving said spaced-apart lever arms of said pivot lever in an end position of an adjustment movement. 7. A furniture drive according to claim 6, wherein an inside width of each of said slots essentially corresponds to, or is somewhat greater than, a dimension of an associated lever arm in a direction parallel to a pivot axis of said pivot lever. 8. A furniture drive according to claim 1, wherein said pivot lever is provided with at least one lever arm, wherein in a further inner wall of said recess that is remote from said abutment surface, at least one slot is formed, and wherein said at least one lever arm of said pivot lever is associated with said at least one slot for receiving said at least one lever arm in an end position of an adjustment movement. 9. A furniture drive according to claim 1, wherein said pivot lever is provided with an abutment member, and wherein said abutment member is formed by a rotatably mounted roller disposed on a free end of said pivot lever. 10. A furniture drive according to claim 1, wherein said drive element or said actuating element is open on one side relative to a side thereof that in an assembled position faces said pivot lever. 11. A furniture drive according to claim 1, wherein said abutment surface is inclined relative to a linear movement axis of said drive element. 12. A furniture drive according to claim 11, wherein said abutment surface has a curved cross-section, at least in portions thereof. 13. A furniture drive according to claim 12, wherein an imaginary connecting line between end points of said curved cross-section of said abutment surface is inclined relative to said linear movement axis of said drive element at an acute angle. 14. A furniture drive according to claim 12, wherein said abutment surface has a concave cross-section relative to said pivot lever. 15. A furniture drive according to claim 1, wherein said abutment surface is inclined relative to said linear movement axis of said drive element at an acute angle. 16. A furniture drive according to claim 1, wherein said pivot lever is provided with an abutment member, and wherein an inside width between said abutment surface and an oppositely disposed inner wall of said recess is greater than a dimension of said pivot lever or said abutment member between said abutment surface and said oppositely disposed inner wall. 17. A furniture drive according to claim 1, wherein said linearly movable drive element or the actuating element connected with said drive element in which said recess is formed is made of polymeric material. 18. A furniture drive according to claim 1, wherein in an assembled position of said furniture drive, said pivot lever is connected with a rotatably mounted shaft that is in functional connection with a furniture part that is to be moved. 19. A furniture drive according to claim 1, wherein said furniture drive is embodied as a double drive and is provided with two drive units. 20. A furniture drive according to claim 19, wherein said drive units of said double drive are accommodated in a common housing. 21. A furniture drive according to claim 1, wherein said at least one drive unit is provided with an electric motor. 22. A furniture drive according to claim 1, wherein said spindle nut is rotatable but linearly fixed in position and said adjusting spindle is linearly movable through the spindle nut during rotation of the spindle nut. 23. A furniture drive according to claim 1, wherein said spindle nut is not rotatable but is linearly movable with rotation of said adjusting spindle.