Drive mechanism for moving a movable furniture part

Patent metadata

Field	Value
Publication number	US-10070721-B2
Application number	US-201615085089-A
Country	US
Kind code	B2
Filing date	Mar 30, 2016
Priority date	Oct 11, 2013
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

An arrangement includes a first drive mechanism for moving a movable furniture part. The first drive mechanism has a lockable first push-out mechanism for pushing the movable furniture part out of a closed position into an open position, and a first locking mechanism for locking the first push-out mechanism in a locked position. The first push-out mechanism can be unlocked from the locked position by an overpressure movement of the movable furniture part into an overpressure position beyond the closed position. A synchronizing device synchronizes the first drive mechanism with a second drive mechanism, and can be moved by the first drive mechanism. The overpressure movement begins free of a movement transfer between the first drive mechanism and the synchronizing device. When the movable furniture part moves in the opening direction, the synchronizing device can be moved by the first drive mechanism.

First claim

The invention claimed is:

1. An arrangement comprising:
a first drive device configured to move a moveable furniture part, said first drive device including:
a lockable first ejection force storage device for ejecting the moveable furniture part from a closed position into an open position;
an attachment element to be mounted to the moveable furniture part such that said attachment element moves between an overpressing position, the closed position, and the open position with the moveable furniture part; and
a first locking device for locking said first ejection force storage device in a locking position, said first ejection force storage device configured to be unlocked from the locking position by an overpressing movement of said attachment element into the overpressing position beyond the closed position; and

a synchronizing device configured to synchronize said first drive device with a second drive device, said synchronizing device being moveable by said first drive device;
wherein said first drive device and said synchronizing device are configured and interconnected such that an entire unlocking process of said first ejection force storage device and at least an initial portion of the overpressing movement is free from any movement transmission between said first drive device and said synchronizing device and such that said synchronizing device is moveable upon a movement of said attachment element in an opening direction by said first ejection force storage device; and
wherein said first drive device and said synchronizing device are configured and interconnected such that a transmission of movement from said first drive device to said synchronizing device occurs only after unlocking of said first ejection force storage device, the unlocking of said first ejection force storage device occurring during movement of said attachment element from the closed position to the overpressing position.

2. The arrangement as set forth in claim 1 , wherein said synchronizing device is moveable by said first drive device only upon a movement of the moveable furniture part in the opening direction.

3. The arrangement as set forth in claim 1 , wherein said synchronizing device is separate from the moveable furniture part.

4. The arrangement as set forth in claim 1 , wherein said attachment element is a housing, said first ejection device includes:
an ejection slider displaceable on said housing,
an ejection force storage device acting on said ejection slider, and
a control lever mounted moveably to said ejection slider,
wherein said first locking device has a latching element arranged on said control lever and a locking element against which said latching element bears in the locking position.

5. The arrangement as set forth in claim 4 , wherein said control lever is mounted rotatably to said ejection slider.

6. The arrangement as set forth in claim 4 , wherein said housing of said first drive device has a cardioid sliding track having an overpressing portion and an ejection portion, said latching element being moveable during the overpressing movement from the locking position into said overpressing portion of said cardioid sliding track and being moveable during the opening movement by the ejection force storage device through said ejection portion of said cardioid sliding track, wherein said locking element is configured to be moved by said latching element moving in said ejection portion in the opening direction.

7. The arrangement as set forth in claim 6 , wherein said cardioid sliding track of said housing further has a stressing portion for guiding said latching element to stress said ejection force storage device and a locking portion, said locking element also forming said locking portion.

8. The arrangement as set forth in claim 6 , wherein said locking element has:
a locking surface against which said latching element bears in the locking position, and
a synchronizing surface against which said latching element bears during the movement through an ejection portion of said cardioid sliding track in the opening direction.

9. The arrangement as set forth in claim 8 , wherein said locking surface is oriented substantially tangentially relative to a direction of rotation of said locking element, and said synchronizing surface is oriented substantially radially relative to an axis of rotation of said locking element.

10. The arrangement as set forth in claim 4 , wherein said locking element is connected to said synchronizing device.

11. The arrangement as set forth in claim 10 , wherein said locking element is connected to said synchronizing device in one piece therewith.

12. The arrangement as set forth in claim 4 , wherein said locking element is mounted moveably to said housing.

13. The arrangement as set forth in claim 12 , wherein said locking element is mounted rotatably to said housing.

14. The arrangement as set forth in claim 1 , wherein said synchronizing device includes:
a coupling element for connecting said synchronizing device to said first drive device; and
a synchronizing bar connected hingedly to said coupling element.

15. The arrangement as set forth in claim 14 , wherein a locking element of said first locking device is formed as one piece with said coupling element.

16. The arrangement as set forth in claim 14 , wherein said coupling element is rotatably mounted to a housing of said first ejection device.

17. The arrangement as set forth in claim 16 , wherein a rotation of said coupling element is limited to an angle in a range of between 30 degrees and 90 degrees.

18. The arrangement as set forth in claim 17 , wherein the rotation of said coupling element is limited to an angle in a range of between 40 degrees and 60 degrees.

19. The arrangement as set forth in claim 1 , further comprising a lockable second drive device for moving the moveable furniture part.

20. The arrangement as set forth in claim 19 , wherein said second drive device has a mirror-image symmetrical configuration relative to said first drive device.

21. The arrangement as set forth in claim 19 , wherein said first drive device, said synchronizing device, and said second drive device are configured and interconnected such that, upon an overpressing movement of only a first one of said first drive device and said second drive device, said ejection device of a second one of said first drive device and said second drive device is unlockable from the locking position due to movement of said ejection device of said first one of said first drive device and said second drive device in the opening direction and due to movement transmission by said synchronizing device to said second one of said first drive device and said second drive device.

22. An article of furniture comprising:
a furniture carcass;
a furniture part moveable on said furniture carcass; and
said arrangement as set forth in claim 1 .

23. The article of furniture as set forth in claim 22 , wherein said furniture carcass and said furniture part are configured such that a front panel gap of a maximum 3 mm remains between said moveable furniture part and said furniture carcass in the closed position.

24. The article of furniture as set forth in claim 23 , wherein the front panel gap is a maximum 2 mm.

25. The arrangement as set forth in claim 1 , wherein said attachment element is one of a housing or an entrainment member.

26. An arrangemen

Assignees

• Blum Gmbh Julius

Inventors

• Brunnmayr Harald
• Flogaus Alexander Simon
• Haemmerle Hermann
• Blum Michael
• Koenig Bernd
• Goetz Christof

Classifications

• A47B88/483

  with single extensible guides or parts · CPC title

• A47B88/463 Primary

  self-opening · CPC title

• A47B2210/0083

  Drawer symmetric movement on opposite telescopic rails · CPC title

• A47B88/47 Primary

  having both self-opening and self-closing mechanisms which interact with each other · CPC title

• A47B88/0481 Primary

  Human Necessities · mapped topic