Drive device for a moveable furniture part

Patent metadata

Field	Value
Publication number	US-11857070-B2
Application number	US-202117476813-A
Country	US
Kind code	B2
Filing date	Sep 16, 2021
Priority date	Mar 20, 2019
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A drive device includes a carrier extending in the closing direction of a moveable furniture part, an ejection device for ejecting the moveable furniture part into an open position, and a locking device for locking the ejection device in a locked position. The locking device has a locking pin connected to the ejection device and a guide track for the locking pin formed in or on the carrier, and a synchronization device for synchronizing the movement of the drive device with a second drive device. The synchronization device has a transmission element moveably mounted on the carrier to be moved by the locking pin, and a synchronization coupling element connected to the transmission element. The guide track has a maximum guide track width measured perpendicular to the closing direction, and the synchronization coupling element and the ejection force store are arranged within this guide track width in the closing direction.

First claim

The invention claimed is:

1. A drive device for moving a moveable furniture part, comprising:
a carrier to extend in a closing direction of the moveable furniture part,
an ejection device for ejecting the moveable furniture part out of a closed position into an open position, the ejection device having an ejection slide moveable relative to the carrier and an ejection force accumulator having a first end fixed to the carrier and a second end fixed to the ejection slide, the ejection device being unlockable out of a locking position by an overpressing movement of the moveable furniture part into an overpressing position behind the closed position,
a locking device for locking the ejection device in the locking position, the locking device including:
a locking pin connected to the ejection device, and
a guide track at least partially in or on the carrier for guiding the locking pin, the locking pin being locked in a latching recess in the guide track in the locking position, and

a synchronization device for synchronizing a movement of the drive device with a second drive device, the synchronization device including:
a transmission element mounted moveably to the carrier and being moveable by the locking pin, and
a synchronization coupling element connected to the transmission element,

wherein the guide track has a maximum guide track width measured perpendicular to the closing direction, end points of the maximum guide track width being located in respective parallel boundary planes oriented parallel to the closing direction and perpendicular to a direction of the maximum guide track width, and the synchronization coupling element and the ejection force accumulator being arranged such that, when viewed in the closing direction, the synchronization coupling element and the ejection force accumulator are located entirely within the maximum guide track width and entirely between the parallel boundary planes, and
wherein the locking pin is locked in the latching recess of the guide track in the locking position, the latching recess being at least partially formed by a locking element moveable relative to the carrier, and the locking pin is held to the locking element in the locking position.

2. The drive device as set forth in claim 1 , wherein the synchronization coupling element is arranged behind the guide track on the carrier in the closing direction.

3. The drive device as set forth in claim 1 , wherein the ejection force accumulator is arranged in front of the guide track in the closing direction.

4. The drive device as set forth in claim 1 , wherein the synchronization coupling element as measured at a right angle to the closing direction has a smaller maximum width than a maximum width of a carrier body of the transmission element as measured perpendicular to the closing direction.

5. The drive device as set forth in claim 1 , wherein the locking element is arranged at the transmission element.

6. The drive device as set forth in claim 1 , wherein the transmission element is moveable linearly in the closing direction.

7. An arrangement comprising:
a first drive device and a second drive device each configured as set forth in claim 1 , and
a synchronization bar for connecting the synchronization device of the first drive device and the synchronization device of the second drive device.

8. An article of furniture comprising:
a furniture carcass;
a furniture part moveable relative to the furniture carcass; and
the arrangement as set forth in claim 7 .

9. The arrangement as set forth in claim 7 , wherein the synchronization device of each of the first drive device and the second drive device further includes a synchronization coupling counterpart element rotatably mounted to the carrier, the synchronization coupling counterpart element being configured to be coupled to the synchronization coupling element in a motion-transmitting relationship, and the synchronization bar is configured to connect the synchronization coupling counterpart element of the first drive device and the synchronization coupling counterpart element of the second drive device.

10. A drive device for moving a moveable furniture part, comprising:
a carrier to extend in a closing direction of the moveable furniture part,
an ejection device for ejecting the moveable furniture part out of a closed position into an open position, the ejection device having an ejection slide moveable relative to the carrier and an ejection force accumulator having a first end fixed to the carrier and a second end fixed to the ejection slide, the ejection device being unlockable out of a locking position by an overpressing movement of the moveable furniture part into an overpressing position behind the closed position,
a locking device for locking the ejection device in the locking position, the locking device including:
a locking pin connected to the ejection device, and
a guide track at least partially in or on the carrier for guiding the locking pin, the locking pin being locked in a latching recess in the guide track in the locking position, and

a synchronization device for synchronizing a movement of the drive device with a second drive device, the synchronization device including:
a transmission element mounted moveably to the carrier and being moveable by the locking pin, and
a synchronization coupling element connected to the transmission element,

wherein the guide track has a maximum guide track width measured perpendicular to the closing direction, end points of the maximum guide track width being located in respective parallel boundary planes oriented parallel to the closing direction and perpendicular to a direction of the maximum guide track width, and the synchronization coupling element and the ejection force accumulator being arranged such that, when viewed in the closing direction, the synchronization coupling element and the ejection force accumulator are located entirely within the maximum guide track width and entirely between the parallel boundary planes, and
wherein the synchronization coupling element has a plurality of teeth spaced from each other in the closing direction.

11. A drive device for moving a moveable furniture part, comprising:
a carrier to extend in a closing direction of the moveable furniture part,
an ejection device for ejecting the moveable furniture part out of a closed position into an open position, the ejection device having an ejection slide moveable relative to the carrier and an ejection force accumulator having a first end fixed to the carrier and a second end fixed to the ejection slide, the ejection device being unlockable out of a locking position by an overpressing movement of the moveable furniture part into an overpressing position behind the closed position,
a locking device for locking the ejection device in the locking position, the locking device including:
a locking pin connected to the ejection device, and
a guide track at least partially in or on the carrier for guiding the locking pin, the locking pin being locked in a latching recess in the guide track in the locking position, and

a synchronization device for synchronizing a movement of the drive device with a second drive device, the synchronization device including:
a transmission element mounted moveably to the carrier and being moveable by the locking pin, and
a synchronization coupling element connected to the transmission element,

wherein the guide track has a maximum guide track width measured perpendicular to the closing direction, end points of the maximum guide track width being located in respective parallel boundary planes oriented parallel to the closing direction and perpendicular t

Assignees

• Blum Gmbh Julius

Inventors

• Janser Pascal

Classifications

• A47B88/463 Primary

  self-opening · CPC title

• A47B88/45

  Synchronisation of cooperating drawer slides, i.e. with a coordination of the rail movement of different drawer slides · CPC title

• A47K3/40 Primary

  Pans or trays · CPC title

• A47B2210/0078

  Drawers with parallel guidance or synchronization by pinion-shaft linkages · CPC title