Synchronizing device for movably mounted furniture part

Patent metadata

Field	Value
Publication number	US-9109649-B2
Application number	US-201314075351-A
Country	US
Kind code	B2
Filing date	Nov 8, 2013
Priority date	May 20, 2011
Publication date	Aug 18, 2015
Grant date	Aug 18, 2015

Abstract

A synchronizing device for a movably mounted furniture part synchronizes a movement between at least two adjusting devices via a synchronizing rod. The synchronizing rod has at least two sub-shafts between which an overload protection device is arranged, and the overload protection device can release a relative rotational movement between the two sub-shafts when a specified holding torque between the two sub-shafts is exceeded.

First claim

The invention claimed is:

1. A movably mounted furniture part comprising:
a furniture part; and
a synchronizing device connected to said furniture part, said synchronizing device including:
a synchronizing rod for synchronizing movement between at least two adjusting devices, said synchronizing rod including at least two shaft portions; and
an overload protection device between said at least two shaft portions of said synchronizing rod, said overload protection device being configured to enable a relative rotary movement between said at least two shaft portions when a predetermined holding torque is exceeded between said at least two shaft portions;
wherein said overload protection device comprises a coupling arranged between two of said at least two shaft portions of said synchronization rod, said coupling comprising a resilient sleeve mounted on a first one of said at least two shaft portions, said resilient sleeve having a latching portion for latching into a counterpart latching element of a second one of said at least two shaft portions, said latching portion being configured to automatically unlatch from said counterpart latching element when a predetermined holding torque between said first one of said at least two shaft portions and said second one of said at least two shaft portions is exceeded so as to enable a relative rotary movement between said at least two shaft portions.

2. The movably mounted furniture part as set forth in claim 1 , wherein said at least two adjusting devices are one of drawer extension guides, adjusting drives of a furniture flap, or lockable and unlockable ejection devices for the movably mounted furniture part.

3. The movably mounted furniture part as set forth in claim 1 , wherein each of said at least two adjusting devices includes at least one gear.

4. The movably mounted furniture part as set forth in claim 3 , wherein each of said at least two adjusting devices further includes a rack into which said respective at least one gear engages.

5. The movably mounted furniture part as set forth in claim 1 , wherein said overload protection device is located axially between said at least two shaft portions, or is located radially with respect to said at least two shaft portions.

6. The movably mounted furniture part as set forth in claim 1 , wherein said overload protection device has at least one spring-loaded latching portion for engaging into at least one of said at least two shaft portions and latching into said at least one of said at least two shaft portions, said at least one spring-loaded latching portion being radially or axially spring loaded.

7. The movably mounted furniture part as set forth in claim 6 , wherein said at least one spring-loaded latching portion is configured to engage into all of said at least two shaft portions and latch into all of said at least two shaft portions.

8. The movably mounted furniture part as set forth in claim 7 , wherein said at least two shaft portions fit into each other, and said spring-loaded latching portion is arranged radially relative to said at least two shaft portions, said spring-loaded latching portion being configured to pass through a first one of said shaft portions and latchingly engage into a second one of said shaft portions.

9. The movably mounted furniture part as set forth in claim 6 , wherein said at least two shaft portions fit into each other, and said spring-loaded latching portion is arranged radially relative to said at least two shaft portions, said spring-loaded latching portion being configured to pass through a first one of said shaft portions and latchingly engage into a second one of said shaft portions.

10. The movably mounted furniture part as set forth in claim 1 , wherein said overload protection device has a radially inwardly directed latching nose configured to latch into at least one of said at least two shaft portions.

11. The movably mounted furniture part as set forth in claim 10 , wherein said radially inwardly directed latching nose is configured to latch into all of said at least two shaft portions.

12. The movably mounted furniture part as set forth in claim 1 , wherein said overload protection device is configured to have at least one of: a one-piece construction, made of plastic, and inserted or removed without a tool.

13. The movably mounted furniture part as set forth in claim 1 , further comprising a spring steel sleeve embracing said overload protection device.

14. An article of furniture comprising the movably mounted furniture part as set forth in claim 1 .

15. The movably mounted furniture part as set forth in claim 1 , wherein said at least two shaft portions fit into each other, and said latching portion of said resilient sleeve is configured to pass through an opening in said first one of said at least two shaft portions and latch into said counterpart latching element of said second one of said at least two shaft portions.

16. The movably mounted furniture part as set forth in claim 15 , wherein said latching portion is configured to remain in said opening in said first one of said at least two shaft portions during its unlatched condition, and to automatically latch into said counterpart latching element of said second one of said at least two shaft portions when in an unlatched condition.

17. The movably mounted furniture part as set forth in claim 15 , wherein said latching portion of said resilient sleeve is formed as a latching nose, and said counterpart latching element is formed as a recess.

18. The movably mounted furniture part as set forth in claim 1 , said latching portion is configured to automatically latch into said counterpart latching element of said second one of said at least two shaft portions when in an unlatched condition.

19. The movably mounted furniture part as set forth in claim 1 , wherein said coupling is configured to have at least one of: a one-piece construction, made of plastic, and inserted or removed without a tool.

20. The movably mounted furniture part as set forth in claim 1 , further comprising a spring steel sleeve embracing said coupling.

Assignees

• Blum Gmbh Julius

Inventors

• Bohle Wolfgang

Classifications

• A47B88/463

  self-opening · CPC title

• E05Y2201/706

  Shafts · CPC title

• A47B2210/0078

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

• A47B88/40

  Sliding drawers; Slides or guides therefor · CPC title

• F16D43/20 Primary

  controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure · CPC title