TWI417066B - Damping device for a slide assembly - Google Patents

Description

Damping device for slide rail assembly

The present invention relates to a damping device, and more particularly to a damping device for a slide rail assembly.

As shown in FIG. 6, a conventional rail assembly includes a first rail member 1; a second rail member 2; and a rolling medium such as a plurality of balls 3, or the plurality of balls are mounted on A retainer 4 is used to slidably pull or push the second rail member 2 relative to the first rail member 1 by the rolling medium. In general, such rail assemblies can be used on server cabinets, furniture cabinets, or similar items that are telescopically displaceable. For example, the first rail member can be fixed to a rack, a cabinet body or a fixture; and the second rail member can be fixed to a chassis, a drawer or a movable object, thereby Provided that the chassis, the drawer or the movable object can be pulled out relative to the rack, the cabinet body or the fixture.

U.S. Patent No. 7,077,488, the disclosure of which is incorporated herein by reference in its entirety in its entirety in its entirety in its entirety in its entirety in its entirety in its entirety in The racks mesh with each other; a spring has two ends, one end of which is connected to the drive teeth and pre-wound, and the other end is fixed. When the drawer is pulled open, the drive teeth engage the rack and are rotated to cause the spring to be tightened and to store the spring force. When the drawer is pushed into and folded with respect to the furniture, the drawer is displaced by the elastic force of the spring. However, the utility model includes the driving tooth and the spring, which is very large in size, and is disadvantageously applied to the object which needs to save space, and the drawer does not have a buffering effect when the furniture is displaced, especially the displacement of the entire displacement.

Therefore, it is necessary to provide a damping device for the slide rail assembly to improve the aforementioned drawbacks.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a damper for a slide rail assembly that ensures a constant amount of resistance throughout the sliding of the slide rails so that the load of the slide rails can be smoothly and gently moved to meet the requirements for safe use.

According to the present invention, the damper device for the slide rail assembly includes a first rail member, a second rail member slid relative to the first rail member, and a third rail member mounted to the first rail member. Between the member and the second rail member; the damper device includes a first bracket, a rack, a second bracket, and a damper, wherein the first bracket is mounted and fixed to the first rail member, The first bracket has a first lateral portion; the rack is mounted on the first lateral portion of the first bracket, the rack has a plurality of teeth, and the tooth portions correspond to the first rail member Between the one end and the second end; the second bracket is fixed to the second rail; the damper is mounted on the second bracket, the damper includes a container and a gear pivotally connects the container, wherein A damping material is included in the container to provide rotational resistance of the gear, the gear being engaged with one of the teeth of the rack.

Wherein the first bracket includes a first longitudinal portion extending longitudinally downward from one end of the first lateral portion, a second lateral portion extending laterally from a bottom end of the first longitudinal portion, and a second longitudinal portion Extending longitudinally downward from one end of the second lateral portion.

The first longitudinal portion of the first bracket includes a plurality of card holes, and the rack includes a plurality of fasteners relative to the card holes, and each of the fasteners has a buckle portion and is fastened corresponding to each of the card holes.

Wherein, the buckle portion passes through the card hole and corresponds between the first longitudinal portion and the side surface of the second longitudinal portion.

The first longitudinal portion of the first bracket includes a plurality of positioning holes, and the rack includes a plurality of protrusions relative to the positioning holes, and can be positioned and locked to each other.

Wherein, the damper includes a pair of fixing portions extending from the container, and the fixing portion and the second bracket are connected by a fixing member.

Wherein, the rack has a first groove portion of the first groove relative to the first bracket, and the first lateral portion is embedded in the card groove.

1 and 2 show a slide rail assembly according to a preferred embodiment of the present invention including a first rail member 10; a second rail member 12 is slid relative to the first rail member 10; and a third rail member 14 is slidably When the second rail member 12 is completely pulled out relative to the first rail member 10, the third rail member 12 can be supported by the third rail member 14 to make the first The two-track member 12 can be pulled out to a longer use distance, and oppositely, the end of the second rail member 12 can be moved to the foremost end of the first rail member 10; and a damping device corresponds to the first The rail member 10 is disposed with the second rail member 12. The first rail member 10 includes a first end 18 and a second end 20 opposite to the first end 18 in a longitudinal direction. In the illustration, the first end 18 is shown as the front end of the first rail member 10, and the second end 20 is shown as the last end of the first rail member 10.

The second rail member 12 also includes a first end 22 and a second end 24 opposite the first end 22 in a longitudinal direction. In the illustration, the first end 22 is shown as the foremost end of the second rail member 12, and the second end 24 is shown as the last end of the second rail member 12.

The damper device includes a first bracket 26 mounted to the first rail member 10; a rack 28 is fixed to the first bracket 26; a second bracket 30 is mounted and fixed to the second rail member 12; And a damper 32 is mounted to the second bracket 30 and is engaged with the rack 28 as shown in FIG.

The first bracket 26 includes a first lateral portion 34, a first longitudinal portion 36 extending longitudinally downward from one end of the first lateral portion 34, and a second lateral portion 38 from the bottom end of the first longitudinal portion 36. Extending laterally, and a second longitudinal portion 40 extends longitudinally downwardly from one end of the second lateral portion 38. The first lateral portion 34 has a first end 42 and a second end 44 opposite to the first end 42 in a longitudinal direction. The first longitudinal portion 36 includes a plurality of card holes 46 and a plurality of positioning holes 48. The second longitudinal portion 40 is for fixing to the first rail member 10, for example, by riveting.

The rack 28 is mounted on the first lateral portion 34 of the first bracket 26 and includes a plurality of teeth 50 distributed corresponding to the first end 18 and the second end of the first rail member 10 Between the ends 20. In the present embodiment, referring to FIG. 3, the rack 28 has a first groove portion 34 of the first bracket 26 opposite to the first bracket portion 26, and the first lateral portion 34 is inserted into the card groove 52. The rack 28 includes a plurality of fasteners 54 relative to the plurality of latching holes 46 and a plurality of projections 56 relative to the positioning holes 48 for being snap-fitted to each other. Each of the fasteners 54 has a fastening portion 58 that is fastened to the card hole 46 of the first bracket 26 so that the rack 28 can be stably mounted on the first bracket 26 . In this embodiment, after the fastening member 54 is fastened and positioned by the fastening portion 58 and the first bracket 26, the fastening portion 58 passes through the locking hole 46 to correspond to the first longitudinal portion 36 and the second portion. Between the side faces 37, 41 of the longitudinal portion 40, the buckle portion 58 does not protrude laterally from the side surface 41 of the second longitudinal portion 40, and does not affect the flatness of the first bracket 26 in the actual application. installation.

The damper 32 includes a container 60, a pair of fixing portions 62 extending from the container 60, and a gear 64 pivotally connecting the container 60. The damper 32 is fixed to the second bracket 30 by the fixing portion 66 of the fixing portion 62 by a fixing member 66 such as a rivet. The container 60 contains a damping material, such as a liquid material having a consistency. The gear 64 is coupled to the container 60 for rotation and utilizes the damping material within the container 60 to provide a quantitative resistance to rotation of the gear 64 relative to the container 60 to collectively form a damping assembly. The present invention can configure one or more damping assemblies in the second bracket 30 in accordance with the requirements of the damping force.

4 shows that when the second rail member 12 is in the folded position relative to the first rail member 10, the gear 64 of the damper 32 meshes with one of the teeth 50 of the rack 28, and the damper 32 is located at the second end 20 of the first rail member 10, that is, at the extreme end. In the displacement stroke of the second rail member 12 relative to the first rail member 10, as shown in FIG. 5, the gear 64 of the damper 32 is driven by the teeth 50 of the rack 28, so that The gear 64 is rotated and interacts with the damping material within the damper 32 to provide resistance, and after the second rail member 12 is fully deployed, the damper 32 moves to the first of the first rail member 10 At the end 18, that is, at the forefront. Therefore, the displacement of the second rail member 12 relative to the first rail member 10 is constant, and the gear 64 of the damper 32 always coincides with the teeth portion 50 of the rack 28 during the opening or folding displacement. One portion remains engaged and provides a quantitative resistance relative to the second rail member 12 such that the displacement speed of the second rail member 12 relative to the first rail member 10 can be reduced by the resistance provided by the damper 32. And maintain a stable speed displacement.

While the present invention has been disclosed in the foregoing preferred embodiments, it is not intended to limit the scope of the invention, and the scope of the invention is defined by the scope of the appended claims.

10. . . First rail

12. . . Second rail

14. . . Third rail

18. . . First end

20. . . Second end

twenty two. . . First end

twenty four. . . Second end

26. . . First bracket

28. . . rack

30. . . Second bracket

32. . . Damper

34. . . First lateral portion

36. . . First longitudinal part

37. . . side

38. . . Second lateral portion

40. . . Second longitudinal part

41. . . side

42. . . First end

44. . . Second end

46. . . Card hole

48. . . Positioning hole

50. . . Tooth

52. . . Card ditch

54. . . Fastener

56. . . Protrusion

58. . . Buckle

60. . . container

62. . . Fixed part

64. . . gear

66. . . Fixed component

1 is an exploded view showing a damper device and a slide rail assembly according to an embodiment of the present invention;

Figure 2 is an exploded view showing the damper device and the slide rail assembly of the embodiment of the present invention at another angle;

Figure 3 is a partially enlarged schematic view showing the damper device of the embodiment of the present invention installed on the slide rail assembly;

Figure 4 is a schematic view showing the relationship between the slide rail assembly and the damper device in the retracted position according to the embodiment of the present invention;

Figure 5 is a view showing the relationship between the slide rail assembly of the embodiment of the present invention and the damper device when unfolded;

Figure 6 is a schematic view showing a conventional slide rail assembly.

10. . . First rail

12. . . Second rail

14. . . Third rail

18. . . First end

20. . . Second end

twenty two. . . First end

twenty four. . . Second end

26. . . First bracket

28. . . rack

30. . . Second bracket

32. . . Damper

60. . . container

62. . . Fixed part

64. . . gear

66. . . Fixed component

Claims (7)

A damping device for a slide rail assembly, comprising: a first rail member having a first end and a second end opposite to the first end; a second rail member sliding relative to the first rail member The damper device includes: a first bracket mounted to the first rail member, the first bracket having a first lateral portion; the first bracket including a first longitudinal portion by the first lateral portion One end of the portion extends longitudinally downward, a second lateral portion extends laterally from the bottom end of the first longitudinal portion, and a second longitudinal portion extends longitudinally downward from one end of the second lateral portion; a rack is mounted In the first lateral portion of the first bracket, the rack has a plurality of teeth, the tooth portions corresponding to between the first end and the second end of the first rail member; a second bracket, Mounted in the second rail member; and a damper mounted on the second bracket, the damper includes a container and a gear pivotally connected to the container, wherein the container contains a damping material to provide the gear rotation resistance, The gear meshes with one of the teeth of the rack. The damper device for a slide rail assembly according to claim 1, wherein the first longitudinal portion of the first bracket includes a plurality of card holes, and the rack includes a plurality of fasteners relative to the card holes Each fastener has a buckle and is fastened corresponding to each card hole. A damper device for a slide rail assembly according to claim 2, wherein each of the buckle portions passes through each of the card holes to correspond to a side of the first longitudinal portion and the second longitudinal portion . The damper device for a slide rail assembly according to claim 1, wherein the first longitudinal portion of the first bracket includes a plurality of positioning holes, and the rack includes a plurality of convex bodies with respect to the positioning holes , and can be positioned to each other. A damper device for a slide rail assembly according to claim 1, wherein the damper includes a pair of fixing portions extending from the container, and the fixing portion and the second bracket are coupled by a fixing member. The damper device for a slide rail assembly according to claim 1, wherein the rack has a first groove portion of the first bracket and the first lateral portion is embedded in the card Inside the ditch. The damper device for a slide rail assembly according to claim 1, further comprising a third rail member slidably mounted between the first rail member and the second rail member, the second rail member being opposite to the When the first rail member is pulled out, the third rail member is supported, so that the second rail member can be pulled out to a longer use distance.