Pull-out system

Patent metadata

Field	Value
Publication number	US-9675174-B2
Application number	US-201414894026-A
Country	US
Kind code	B2
Filing date	Jun 4, 2014
Priority date	Jun 14, 2013
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

A pull-out system comprises at least two pull-out guides, each pull-out guide having a stationary rail and at least one rail that can be moved relative to the stationary rail, means for synchronizing the movement of the movable rails being provided, said means comprising at least one flexible deflector element for synchronization. In this way, the movement of wide or heavy pull-out units can be synchronized in a simple manner, producing little noise.

First claim

The invention clamed is:

1. A pull-out system, comprising:
two pull-out guides, each pull-out guide comprising a stationary rail, a running rail, and a middle rail, the running rail and the middle rail being moveable relative to the stationary rail;
a flexible deflection element configured to synchronize the movement of the movable rails wherein the flexible deflection element is retained on the middle rail of each pull-out guide via at least one respective deflection pulley;
an enclosure disposed between the two pull-out guides, the enclosure surrounding a portion of the deflection element, the enclosure displaceable independently of the deflection element;
a tensioning sleeve acting on a side of the enclosure;
a spring acting on the tensioning sleeve, the spring and tensioning sleeve operable to displace the enclosure independently of the deflection element to set a tension of the deflection element; and
a locking element operable to lock the tension of the deflection element.

2. A pull-out system according to claim 1 , characterized in that the flexible deflection element is movable together with the at least one movable rail.

3. A pull-out system according to claim 1 , characterized in that the flexible deflection element is arranged with a section parallel to a longitudinal direction of at least one of the two pull-out guides and a connecting section perpendicular to the longitudinal direction.

4. A pull-out system according to claim 1 , characterized in that the flexible deflection element is guided via the at least one respective deflection pulley.

5. A pull-out system according to claim 4 , characterized in that the flexible deflection element and/or the at least one respective deflection pulley is arranged on at least one support which is connectable to one of the pull-out guides.

6. A pull-out system according to claim 1 , characterized in that the tension of the deflection element is adjustable by a change in the length of the enclosure around the deflection element and/or by a displacement of at least one retainer parallel to the longitudinal direction of one of the pull-out guides.

7. A pull-out system according to claim 1 , characterized in that the flexible deflection element is formed as a continuous loop or is formed from several subcomponents.

8. A pull-out system according to claim 1 , characterized in that the flexible deflection element is respectively deflected about the at least one respective deflection pulley.

9. A pull-out system according to claim 1 , characterized in that the flexible deflection element is fixed at a first connection point to the stationary rail of one of the pull-out guides and at a second connection point to the movable rail of one of the pull-out guides.

10. A pull-out system according to claim 1 , characterized in that the flexible deflection element is formed as a wire cable.

11. A domestic appliance comprising a pull-out system, the pull-out system comprising:
two pull-out guides, each pull-out guide comprising a stationary rail, a running rail, and a middle rail, the running and the middle rail being moveable relative to the stationary rail;
a flexible deflection element configured to synchronize the movement of the movable rails wherein the flexible deflection element is retained on the middle rail of each pull-out guide via at least one respective deflection pulley;
an enclosure disposed between the two pull-out guides, the enclosure surrounding a portion of the deflection element, the enclosure displaceable independently of the deflection element;
a tensioning sleeve acting on a side of the enclosure;
a spring acting on the tensioning sleeve, the spring and tensioning sleeve operable to displace the enclosure independently of the deflection element to set a tension of the deflection element; and
a locking element operable to lock the tension of the deflection element.

Assignees

• Hettich Paul Gmbh & Co Kg

Inventors

• Jahrling Peter
• Rehage Daniel
• Brinkmann Rudiger
• Bextermoller Benjamin

Classifications

• A47B2210/0072

  Coordinating mechanisms for sequential drawer slides, e.g. by cable · CPC title

• A47B88/483 Primary

  with single extensible guides or parts · CPC title

• A47B88/447 Primary

  Simultaneous movement of rails within drawer slides, i.e. with a coordination of movement with all rail elements moving at the same time · CPC title

• A47B88/493

  with rollers, ball bearings, wheels, or the like · CPC title

• A47B2210/0083

  Drawer symmetric movement on opposite telescopic rails · CPC title