Slide rail assembly and driving mechanism thereof

Patent metadata

Field	Value
Publication number	US-10674820-B2
Application number	US-201815923102-A
Country	US
Kind code	B2
Filing date	Mar 16, 2018
Priority date	Sep 22, 2017
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

A slide rail assembly includes a first rail, a second rail and a driving mechanism. The second rail is movable relative to the first rail. The second rail includes an engaging feature. The driving mechanism is arranged on the first rail. The driving mechanism includes a housing, a movable member, an actuating structure and an elastic member. The movable member is movable relative to the housing. The actuating structure is arranged on the movable member. The elastic member is configured to provide an elastic force to the movable member. Wherein, the actuating structure includes a first part and a second part. Wherein, the first part is configured to engage with the engaging feature of the second rail, and the second part is configured to prevent the engaging feature of the second rail from being disengaged from the first part.

First claim

What is claimed is:

1. A slide rail assembly, comprising:
a first rail;
a second rail longitudinally movable relative to the first rail, the second rail comprising an engaging feature; and
a driving mechanism configured to drive the second rail to move to a retracted position during an end process of the second rail being retracted relative to the first rail from an extension position along a first direction, the driving mechanism comprising:
a housing arranged on the first rail;
a movable member movably connected to the housing;
an actuating structure arranged on the movable member; and
an elastic member configured to provide an elastic force to the movable member along the first direction;

wherein the actuating structure comprises a first part and a second part;
wherein the first part is configured to engage with the engaging feature of the second rail, and the second part is configured to prevent the engaging feature of the second rail from being disengaged from the first part;
wherein the first part is fixedly connected to the movable member, the second part is movably connected to the first part through an extension section extended into a space inside the first part, and the extension section has a limiting feature configured to abut against an inner wall of the first part to limit a moving range of the second part relative to the first part along a transverse direction of the first rail.

2. The slide rail assembly of claim 1 , wherein the actuating structure is transversely extended relative to the first rail and has a transverse length, and the second part is configured to prevent the engaging feature of the second rail from being transversely disengaged from the first part.

3. The slide rail assembly of claim 1 , wherein one of the first part and the second part is made of plastic, and the other one of the first part and the second part is made of metal.

4. The slide rail assembly of claim 1 , wherein the housing comprises a longitudinal room, a longitudinal part, a bending part and a blocking wall, the longitudinal part is substantially parallel to the longitudinal room, the bending part is bent from the longitudinal part, the elastic member is arranged inside the longitudinal room, the movable member has a first side and a second side opposite to the first side, the first side is arranged with a first protrusion and a second protrusion, the actuating structure is arranged on the second side, the first protrusion abuts against the elastic member, the second protrusion is movable between the longitudinal part and the bending part, the blocking wall is configured to abut against the second protrusion when the movable member is located at a predetermined position.

5. The slide rail assembly of claim 1 , further comprising a decelerating mechanism adjacent to the driving mechanism, wherein the decelerating mechanism comprises a sliding base and a damper configured to provide a damping force to the sliding base, during a process of the second rail being moved to the retracted position, the movable member is configured to drive the sliding base to move, and a speed of the second rail moving toward the retracted position is reduced by the damping force.

6. The slide rail assembly of claim 1 , wherein the housing comprises a longitudinal part and a supporting part transversely protruded relative to the longitudinal part, the movable member is movable along the longitudinal part, one end of the supporting part has a guiding surface; wherein when the second rail is retracted relative to the first rail along the first direction, a rail section of the second rail is configured to be lifted through guidance of the guiding surface and supported by the supporting part.

7. A slide rail assembly, comprising:
a first rail;
a second rail movable relative to the first rail, the second rail comprising an engaging feature; and
a driving mechanism comprising:
a housing arranged on the first rail;
a movable member movable relative to the housing;
an actuating structure arranged on the movable member; and
an elastic member configured to provide an elastic force to the movable member;

wherein the actuating structure comprises a first part and a second part;
wherein an outline of the second part is wider than an outline of the first part;
wherein the first part is configured to engage with the engaging feature of the second rail, and the second part is configured to prevent the engaging feature of the second rail from being disengaged from the first part;
wherein the first part is fixedly connected to the movable member, the second part is movably connected to the first part through an extension section extended into a space inside the first part, and the extension section has a limiting feature configured to abut against an inner wall of the first part to limit a moving range of the second part relative to the first part along a transverse direction of the first rail.

8. The slide rail assembly of claim 7 , wherein the actuating structure has a transverse length relative to a longitudinal direction of the first rail, and the second part is configured to prevent the engaging feature of the second rail from being disengaged from the first part along the transverse direction of the first rail.

9. The slide rail assembly of claim 7 , wherein one of the first part and the second part is made of plastic, and the other one of the first part and the second part is made of metal.

10. The slide rail assembly of claim 7 , wherein the housing comprises a longitudinal room, a longitudinal part, a bending part and a blocking wall, the longitudinal part is substantially parallel to the longitudinal room, the bending part is bent from the longitudinal part, the elastic member is arranged inside the longitudinal room, the movable member has a first side and a second side opposite to the first side, the first side is arranged with a first protrusion and a second protrusion, the actuating structure is arranged on the second side, the first protrusion abuts against the elastic member, the second protrusion is movable between the longitudinal part and the bending part, the blocking wall is configured to abut against the second protrusion when the movable member is located at a predetermined position.

11. The slide rail assembly of claim 7 , further comprising a decelerating mechanism adjacent to the driving mechanism, wherein the decelerating mechanism comprises a sliding base and a damper configured to provide a damping force to the sliding base, during a process of the second rail being moved to the retracted position, the movable member is configured to drive the sliding base to move, and a speed of the second rail moving toward the retracted position is reduced by the damping force.

12. The slide rail assembly of claim 11 , wherein the damper comprises a damping cylinder and a rod connected to the damping cylinder.

13. The slide rail assembly of claim 11 , wherein the housing further comprises a supporting part transversely protruded relative to the longitudinal part, one end of the supporting part has a guiding surface; wherein when the second rail is retracted relative to the first rail, a rail section of the second rail is configured to be lifted through guidance of the guiding surface and supported by the supporting part.

14. The slide rail assembly of claim 7 , wherein the housing comprises a longitudinal part and a supporting part transversely protruded relative to the longitudinal part, the movable member is movable along the longitudinal part, one end of the supporting part has a guiding surface; wherein when the second rail is retracted relative

Assignees

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

Inventors

• Chen Ken-Ching
• Huang Shih-Lung
• Jhao Yi-Syuan
• Wang Chun-Chiang

Classifications

• A47B2088/4675

  with detent or emboss on slide · CPC title

• A47B88/467 Primary

  self-closing · CPC title

• A47B88/483

  with single extensible guides or parts · CPC title

• H05K7/1489 Primary

  characterized by the mounting of blades therein, e.g. brackets, rails, trays (H05K7/1491 takes precedence) · CPC title

• F16C2314/72

  Drawers · CPC title