ACUTATING DRIVE FOR MOVING A MOVEABLE FURNITURE PART

• US 20150351539A1
• Filed: 07/13/2015
• Published: 12/10/2015
• Est. Priority Date: 02/08/2013
• Status: Active Grant

• Current Assignee: Julius BLUM GmbH (BLUM Verwaltung GmbH)
• Original Assignee: Julius BLUM GmbH (BLUM Verwaltung GmbH)
• Inventors: BALDREICH, Armin, HAEMMERLE, Kurt
• Granted Patent: US 9,498,062 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A47B 2220/0061 Accessories
• CPC Class Codes: A47B 96/00 Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture doors E06B
• CPC Class Codes: A47B 97/00 Furniture or accessories for furniture, not provided for in other groups of this subclass
• CPC Class Codes: E05D 11/1064 with a coil spring perpendicular to the pivot axis
• CPC Class Codes: E05F 1/1041 with a coil spring perpendicular to the pivot axis E05F1/1246 takes precedence
• CPC Class Codes: E05F 1/1058 for counterbalancing
• CPC Class Codes: E05F 1/1261 for counterbalancing
• CPC Class Codes: E05Y 2201/638 Cams; Ramps
• CPC Class Codes: E05Y 2600/10 Adjustable or movable
• CPC Class Codes: E05Y 2600/20 characterised by the movement transmission
• CPC Class Codes: E05Y 2900/20 for furnitures, e.g. cabinets
• CPC Class Codes: E06B 3/34 with only one kind of movement E06B3/48 takes precedence
• CPC Class Codes: E06B 5/006 for furniture E06B3/00, E06B9/115 take precedence
• CPC Class Codes: F03G 1/10 for producing output movement other than rotary, e.g. vibratory

Abstract

An actuating drive (5) for moving a moveable furniture part (3), comprising: at least one moveably mounted actuating member (7) for moving the moveable furniture part (3); a spring device (11) for subjecting the actuating member (7) to force; an adjustment device (13) by means of which a force of the spring device (11), which force acts on the actuating member (7) can be adjusted; wherein the adjustment device (13) has an adjustment screw (16) having a thread (17), wherein the force of the spring device (11), which force acts on the actuating member (7), can be adjusted via a screw nut (12) which is mounted displaceably along the thread (17), wherein at least one spring element (26) is provided via which the screw nut (12) can be subjected, at at least one end region of the adjustment screw (16), to a force directed away from said end region.

Claims

1. An actuating drive for moving a moveable furniture part, including:

—

at least one moveably mounted actuating member for moving the moveable furniture part,

—

a spring device for subjecting the actuating member to a force,

—

an adjusting device by which a force of the spring device, that acts on the actuating member, is adjustable,

—

wherein the adjusting device has an adjusting screw having a thread,

wherein the force of the spring device, that acts on the actuating member, is

adjustable by way of a screw nut mounted displaceably along the thread,

wherein there is provided at least one spring element separate from the spring device, by way of which the screw nut, at at least one end region of the adjusting screw, can be acted upon with a force directed away from said end region.

2. The actuating drive according to claim 1, wherein at at least one end region of the adjusting screw, there is provided an abutment surface against which the spring element can be supported.

3. The actuating drive according to claim 2, wherein the abutment surface is formed by a screw head of the adjusting screw.

4. The actuating drive according to claim 1, wherein the spring element is in the form of a component separate from the screw nut.

5. The actuating drive according to claim 1, wherein the adjusting screw, at at least one end region, has a thread-less portion, wherein the screw nut can pass into said thread-less portion and can be brought out of engagement from the thread of the adjusting screw.

6. The actuating drive according to claim 1, wherein the spring element is in the form of a leaf spring which is preferably pre-stressed in a bow-shaped manner.

7. The actuating drive according to claim 1, wherein the spring device for acting on the adjusting member bears against the screw nut.

8. The actuating drive according to claim 1, wherein the spring device for acting on the actuating member has at least one coil spring.

9. The actuating drive according to claim 1, wherein the actuating member is in the form of an actuating arm mounted pivotably about an axis of rotation.

10. The actuating drive according to claim 9, wherein the actuating arm is pivotable by way of a control cam along which a pressure roller, which is pressurized by the spring device, runs.

11. The actuating drive according to claim 10, wherein the control cam is arranged or formed on the actuating arm, wherein the control cam provides a varying radial spacing relative to the axis of rotation of the actuating arm.

12. The actuating drive according to claim 1, wherein there is provided an adjustment wheel with a receiving means for a tool, the adjustment wheel cooperates with the adjusting screw by way of a transmission mechanism, wherein the adjusting screw is rotatable by a rotary movement of the adjustment wheel, that is implemented by the tool.

13. The actuating drive according to claim 12, wherein the adjustment wheel is mounted rotatably about an axis of rotation, wherein the direction of the axis of rotation of the adjustment wheel extends transversely, preferably approximately at a right angle, relative to a longitudinal axis of the adjusting screw.

14. The actuating drive according to claim 1, wherein the actuating drive has a housing to be fixed to a furniture carcass, wherein the actuating member, in the position of use, is connected on the one hand pivotably to the furniture carcass and on the other hand to the moveable furniture part.

15. An article of furniture having a furniture carcass and a flap moveable relative to the furniture carcass, wherein the flap is mounted moveably by an actuating drive according claim 1.