Drive device for a moveable furniture part

Patent metadata

Field	Value
Publication number	US-2022015537-A1
Application number	US-202117478434-A
Country	US
Kind code	A1
Filing date	Sep 17, 2021
Priority date	Mar 20, 2019
Publication date	Jan 20, 2022
Grant date	—

Abstract

A drive device includes a carrier, an ejection device for ejecting a moveable furniture part out of a closed position, and a locking device for locking the ejection device in the locked position. The locking device has a locking pin connected to the ejection device and a guide track for the locking pin in or on the carrier. The locking pin is locked in an engaging recess of the guide track in the locked position, and a synchronisation device is movable relative to the carrier for synchronising the movement of the drive device with a second drive device. The synchronisation device has a transmission element to be moved by the locking pin. The transmission element remains still with the overpressure movement, can be moved by the locking pin during opening movement, can be moved by the locking pin during closing movement, and is linearly moveably mounted on the carrier.

First claim

1 . A drive device for a moveable furniture part, in particular for a drawer, comprising:
a carrier, an ejection device for ejecting the moveable furniture part out of a closed position into an open position, wherein the ejection device is 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, wherein the locking device has a locking pin connected to the ejection device and a guide track provided at least partially in or on the carrier for the locking pin, wherein the locking pin in the locking position is locked in a latching recess of the guide track, and a synchronization device moveable relative to the carrier for synchronizing the movement of the drive device with a second drive device, wherein the synchronization device has a transmission element moveable by the locking pin, wherein the transmission element is stationary at least in the overpressing movement, is moveable in an opening movement by the locking pin and is moveable in a closing movement by the locking pin, wherein the transmission element is linearly moveably mounted to the carrier.

2 . The drive device as set forth in claim 1 , wherein arranged on the transmission element is a locking element for the locking pin, which also forms the guide track.

3 . The drive device as set forth in claim 2 , wherein the locking pin is locked in the locking position in the latching recess of the guide track, wherein the latching recess is at least partially formed by the locking element moveable relative to the carrier and wherein the locking pin is held in the locking position on the locking element, preferably at a holding surface provided on the locking element.

4 . The drive device as set forth in claim 1 , wherein the transmission element has a first transmission abutment projecting into an opening portion of the guide track, wherein in the opening movement the transmission element is moveable by the locking pin by way of said first transmission abutment.

5 . The drive device as set forth in claim 4 , wherein the first transmission abutment is formed by an end face which is provided on the locking element and which is preferably oriented transversely relative to the holding surface.

6 . The drive device as set forth in claim 1 , wherein the transmission element has a second transmission abutment projecting into a closing portion of the guide track, wherein in the closing movement the transmission element is moveable by the locking pin by way of said second transmission abutment.

7 . The drive device as set forth in claim 6 , wherein the locking element is moveable into a latching recess-forming position in which the locking element also forms the latching recess of the guide track, preferably exclusively, by the movement of the transmission element which is triggered in the closing movement by the locking pin by way of the second transmission abutment.

8 . The drive device as set forth in claim 6 , wherein the second transmission abutment is moveable by the locking pin from an abutment position into an evasion position in which the locking pin is released from the second transmission abutment.

9 . The drive device as set forth in claim 8 , wherein a further movement of the locking pin is enabled into a latching portion by movement of the second transmission abutment into the evasion position.

10 . The drive device as set forth in claim 9 , wherein the transmission element is stationary in a movement of the locking pin in the latching portion and in an overpressing portion.

11 . The drive device as set forth in claim 1 , wherein the synchronization device has a synchronization coupling element connected to the transmission element.

12 . The drive device as set forth in claim 1 , wherein the transmission element has a carrier body, wherein the first transmission abutment, the second transmission abutment and/or the synchronization coupling element is/are formed in one piece with the carrier body.

13 . 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 devices, in particular synchronization coupling counterpart elements, of the two drive devices.

14 . An article of furniture comprising:
a furniture carcass; at least one furniture part moveable relative to the furniture carcass; and the drive device as set forth in claim 1 .

Assignees

• Blum Gmbh Julius

Inventors

• Janser Pascal

Classifications

• A47B88/45 Primary

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

• A47B88/473

  Braking devices, e.g. linear or rotational dampers or friction brakes; Buffers; End stops · CPC title

• A47B88/463 Primary

  self-opening · CPC title

• A47B2210/0083

  Drawer symmetric movement on opposite telescopic rails · CPC title