Slide rail assembly

Patent metadata

Field	Value
Publication number	US-9526334-B2
Application number	US-201514620336-A
Country	US
Kind code	B2
Filing date	Feb 12, 2015
Priority date	Feb 12, 2015
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A slide rail assembly includes first and second rails, a running carriage, a correction mechanism, and an actuator. The running carriage is slidably mounted on the first rail, carries the second rail, and, when the second rail is longitudinally displaced relative to the first rail, is differentially moved relative to the second rail. The correction mechanism is mounted on the first rail and includes an action member and a pushing member movably connected to the action member. The actuator is connected to the second rail. Should a differential movement error of the running carriage occur, the actuator drives the action member while the second rail is being extended, thereby displacing the pushing member, and hence the running carriage, so as to correct the error.

First claim

The invention claimed is:

1. A slide rail assembly, comprising:
a first rail;
a second rail longitudinally displaceable relative to the first rail;
a running carriage slidably mounted to the first rail for carrying the second rail;
a correction mechanism mounted to the first rail, the correction mechanism including an action member and a pushing member movably connected to the action member, wherein the action member is able to be driven by the second rail to displace the pushing member for displacing the running carriage to a position; and
a pivotal connecting element for pivotally connecting the action member of the correction mechanism to the first rail, wherein the action member further includes a contact portion, and while the second rail is displaced relative to the first rail, a portion of the second rail pushes the contact portion and thereby drives the action member into rotation;
wherein the action member of the correction mechanism further includes teeth, and the pushing member further includes a toothed rack meshing with the teeth such that, when the action member is driven by the second rail, the teeth drive the toothed rack and thereby displace the pushing member relative to the first rail; and
wherein the correction mechanism further includes an elastic member, and the pushing member is configured to automatically return from a displaced position to a predetermined position in response to an elastic force provided by the elastic member.

2. The slide rail assembly of claim 1 , wherein the pushing member further includes a guide groove, and the pivotal connecting element extends through the guide groove.

3. A slide rail assembly, comprising:
a first rail;
a second rail longitudinally displaceable relative to the first rail between a retracted position and an extended position;
a running carriage slidably mounted to the first rail, carrying the second rail, and movable together with the second rail in a differential manner with respect to the second rail;
a correction mechanism mounted to the first rail, the correction mechanism including an action member and a pushing member movably connected to the action member;
an actuator connected to the second rail; and
a pivotal connecting element for pivotally connecting the action member of the correction mechanism to the first rail, wherein the action member further includes a contact portion, and while the second rail is displaced relative to the first rail between the retracted position and the extended position, the actuator pushes the contact portion and thereby drives the action member into rotation;
wherein the action member of the correction mechanism further includes teeth, and the pushing member further includes a toothed rack meshing with the teeth such that, when the action member is driven by the actuator, the teeth drive the toothed rack and thereby displace the pushing member relative to the first rail;
wherein the correction mechanism further includes an elastic member, and the pushing member is configured to automatically return from a displaced position to a predetermined position in response to an elastic force provided by the elastic member; and
wherein responsive to occurrence of an error in differential movement of the running carriage relative to the second rail, the actuator drives the action member while the second rail is displaced from the retracted position toward the extended position, in order for the action member to displace the pushing member relative to the first rail so that the pushing member is able to contact the running carriage and thereby displace the running carriage to correct the error.

4. The slide rail assembly of claim 1 , wherein the pushing member further includes a guide groove, and the pivotal connecting element extends through the guide groove.

5. The slide rail assembly of claim 1 , wherein the correction mechanism further includes a base connected to the first rail, and the pushing member is movably connected to the base.

6. The slide rail assembly of claim 5 , wherein the base further includes a dividing portion, the pushing member further includes a receiving room for receiving the elastic member, and the dividing portion of the base abuts against a portion of the elastic member.

7. The slide rail assembly of claim 1 , wherein the first rail further includes a dividing portion, the pushing member further includes a receiving room for receiving the elastic member, and the dividing portion of the first rail abuts against a portion of the elastic member.

8. The slide rail assembly of claim 1 , wherein the running carriage further includes at least one roller for carrying the second rail.

9. A slide rail assembly applicable to a cabinet having a drawer, the slide rail assembly comprising:
a first rail mounted to the cabinet;
a second rail and a third rail, wherein the second rail is movably mounted between the first rail and the third rail and is longitudinally displaceable relative to the first rail between a retracted position and an extended position, and the third rail carries the drawer;
a running carriage slidably mounted to the first rail, carrying the second rail, and movable together with the second rail in a differential manner with respect to the second rail;
a correction mechanism mounted to the first rail, the correction mechanism including an action member and a pushing member movably connected to the action member;
an actuator connected to the second rail; and
a pivotal connecting element for pivotally connecting the action member of the correction mechanism to the first rail, wherein the action member further includes a contact portion, and while the second rail is displaced relative to the first rail between the retracted position and the extended position, the actuator pushes the contact portion and thereby drives the action member into rotation;
wherein the action member of the correction mechanism further includes teeth, and the pushing member further includes a toothed rack meshing with the teeth such that, when the action member is driven by the actuator, the teeth drive the toothed rack and thereby displace the pushing member relative to the first rail;
wherein the correction mechanism further includes an elastic member, and the pushing member is configured to automatically return from a displaced position to a predetermined position in response to an elastic force provided by the elastic member; and
wherein responsive to occurrence of an error in differential movement of the running carriage relative to the second rail, the actuator drives the action member while the second rail is displaced from the retracted position toward the extended position, in order for the action member to displace the pushing member relative to the first rail so that the pushing member is able to contact the running carriage and thereby displace the running carriage to correct the error.

10. The slide rail assembly of claim 9 , wherein the correction mechanism further includes a base connected to the first rail, the pushing member is movably connected to the base, the base includes a dividing portion, the pushing member includes a receiving room for receiving the elastic member, and the dividing portion of the base abuts against a portion of the elastic member.

11. The slide rail assembly of claim 9 , wherein the first rail further includes a dividing portion, the pushing member further includes a receiving room for receiving the elastic member, and the dividing portion of the first rail abuts against a portion of the elastic member.

Assignees

• King Slide Works Co Ltd
• King Slide Technology Co Ltd

Inventors

• Liang Hsiu-Chiang
• Chen Ken-Ching
• Wang Chun-Chiang

Classifications

• A47B2210/0075

  using gears · CPC title

• A47B88/14 Primary

  Human Necessities · mapped topic

• A47B2210/007

  Three slide synchronisation · CPC title

• A47B2210/0067

  Two slide synchronisation · CPC title

• A47B88/493

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