Actuator for movable furniture parts

Patent metadata

Field	Value
Publication number	US-10487554-B2
Application number	US-201715474452-A
Country	US
Kind code	B2
Filing date	Mar 30, 2017
Priority date	Nov 21, 2014
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

An actuating drive for moving a movable furniture part includes at least one actuating arm pivotally mounted about a pivoting axis for moving the movable furniture part, a spring device for applying a force to the actuating arm, and a transmission mechanism for transmitting a force of the spring device to the actuating arm. The transmission mechanism includes an actuating portion motionally coupled to the actuating arm, a setting contour arranged on the actuating portion, and a pressure portion pressurized by the spring device. The pressure portion is displaceable along the setting contour upon a movement of the actuating arm. An adjustment device is provided by which a position of the setting contour relative to the actuating portion can be adjusted.

First claim

The invention claimed is:

1. An actuating drive for moving a movable furniture part,
said actuating drive comprising:
an actuating arm which is pivotally mounted about a pivoting axis for moving the movable furniture part,
a spring device for applying a force to the actuating arm,
a transmission mechanism for transmitting the force of the spring device to the actuating arm, the transmission mechanism including:
an actuating portion which is motionally coupled to the actuating arm;
a setting contour arranged on the actuating portion; and
a pressure portion which is pressurized by the spring device, the pressure portion being displaceable along the setting contour upon a movement of the actuating arm; and

an adjustment device configured to adjust a position of the setting contour relative to the actuating portion so as to adjust a maximum level of an amount of the force of the spring device transmitted to the actuating arm.

2. The actuating drive according to claim 1 , wherein the adjustment device has an automatic locking configuration.

3. The actuating drive according to claim 1 , wherein the adjustment device is configured to continuously adjust a position of the setting contour.

4. The actuating drive according to claim 1 , wherein the adjustment device is configured to convert a rotational movement of an adjustment wheel into a longitudinal movement of the setting contour.

5. The actuating drive according to claim 1 , wherein the actuating portion has a guide along which the setting contour is adjustably arranged, wherein a guide element connected to the setting contour is adjustably arranged along the guide.

6. The actuating drive according to claim 5 , further comprising a spring element configured to press the guide element of the setting contour against the guide of the actuating portion.

7. The actuating drive according to claim 1 , wherein the adjustment device, is configured to variably adjust pre-stressing of the spring device and/or torque progression acting on the actuating arm.

8. The actuating drive according to claim 1 , wherein the spring device includes a helical spring.

9. The actuating drive according to claim 8 , wherein the helical spring is a compression spring.

10. The actuating drive according to claim 1 , wherein the pressure portion is in the form of a pivotally mounted pressure roller.

11. The actuating drive according to claim 1 , wherein the actuating portion includes two or more components connected to one another.

12. The actuating drive according to claim 1 , wherein the setting contour includes two or more discs connected to one another.

13. An arrangement comprising a movable furniture part and the actuating drive according to claim 1 for moving the movable furniture part.

14. An actuating drive for moving a movable furniture part, said actuating drive comprising:
an actuating arm which is pivotally mounted about a pivoting axis for moving the movable furniture part,
a spring device for applying a force to the actuating arm,
a transmission mechanism for transmitting the force of the spring device to the actuating arm, the transmission mechanism including:
an actuating portion which is motionally coupled to the actuating arm;
a setting contour arranged on the actuating portion; and
a pressure portion which is pressurized by the spring device, the pressure portion being displaceable along the setting contour upon a movement of the actuating arm; and

an adjustment device configured to adjust a position of the setting contour relative to the actuating portion so as to adjust the force of the spring device transmitted to the actuating arm;
wherein the adjustment device is configured to convert a rotational movement of an adjustment wheel into a longitudinal movement of the setting contour, and
wherein the adjustment device includes a bearing portion to be driven along a threaded section by rotating the adjustment wheel, the setting contour being movement-coupled to the bearing portion.

15. The actuating drive according to claim 14 , wherein the threaded section is arranged in a play-free manner in an axial direction by a wedge element which is acted upon by a spring element.

Assignees

• Blum Gmbh Julius

Inventors

• Lubetz Simon
• Schmid Malte

Classifications

• E05Y2201/624

  Arms · CPC title

• E05Y2900/20

  for furniture, e.g. cabinets · CPC title

• E05Y2201/638

  Cams; Ramps · CPC title

• E05D15/40

  supported on arms movable in vertical planes · CPC title

• E05Y2600/12

  by manual operation · CPC title