CN102113776B - Damping device for sliding rail assembly - Google Patents

Abstract

The invention relates to a damping device for a sliding rail assembly, which comprises a first rail piece, a second rail piece, a first bracket, a second bracket, a rack and a damper, wherein the second rail piece is in sliding relative to the first rail piece, the first bracket is fixedly arranged on the first rail piece, the second bracket is fixedly arranged on the second rail piece, the rack is arranged on the first bracket, the damper is arranged on the second bracket, the damper comprises a container and a gear which is pivoted with the container, wherein the container contains damping materials, and when the second rail piece moves in the whole process relative to the first rail piece, the gear of the damper is driven by the rack, so that the gear is driven to rotate to interact with the damping materials in the container, and quantitative resistance is provided.

Description

Damping device for slide rail assembly

technical field

The invention relates to a damping device used in a slide rail assembly, in particular to a design that maintains resistance during the entire sliding process between the slide rails so that the slide rails can move smoothly and gently.

Background technique

The basic structure of a general slide rail, as shown in Figure 6, it includes a first rail 1; a second rail 2; and a rolling medium such as a plurality of balls 3, or the plurality of balls installed in a holding A retainer 4 (retainer), by means of the rolling medium, makes the second rail 2 slidably pull out or push in and collect relative to the first rail 1 . Generally speaking, this kind of slide rail can be used on server cabinets, furniture kitchen cabinets, or similar telescopic displacement objects. For example: the first rail can be fixed to a rack, a cabinet body or a fixture; and the second rail can be fixed to a chassis, a drawer or a movable object, thereby It is set so that the chassis, the drawer or the movable object can be pulled out for use relative to the rack, the cabinet body or the fixture.

U.S. Patent No. 7,077,488 "Drawer closing mechanism" invented by Wiklund et al. discloses that a drawer closing mechanism includes a rack that is installed and fixed relative to a drawer; The strips are engaged with each other; a spring has two ends, one end is connected to the drive tooth and pre-wound, and the other end is fixed. When the drawer is pulled out and opened, the driving tooth engages with the rack and is driven to rotate, so that the spring is tightened and stores elastic force. When the drawer is pushed into and folded relative to the furniture, the drawer is driven by the elastic force of the spring to be displaced and folded. However, the existing products including driving teeth and springs are very bulky, which is unfavorable for use on objects that need to save space, and the drawer does not have a buffering effect when it is displaced relative to the furniture, especially the buffering of the entire displacement.

Therefore, there is a need to provide a damping device for the slide rail assembly to improve the aforementioned deficiencies in the prior art.

Contents of the invention

The object of the present invention is to provide a damping device for the slide rail assembly to achieve:

Ensure that the sliding between the slide rails maintains a certain amount of resistance throughout the entire process, so that the load on the slide rails can move smoothly and gently, and meet the needs of safe use.

A damping device for a slide rail assembly according to one aspect of the present invention comprises a first rail, a second rail sliding relative to the first rail, and a third rail installed on the first rail Between the piece and the second rail, the damping device is characterized by: including a first bracket, a rack, a second bracket and a damper, wherein the first bracket is installed and fixed on the first rail, the first bracket has a first transverse portion; the rack is installed on the first transverse portion of the first bracket, the rack has a plurality of teeth, and these teeth are distributed corresponding to the first rail Between the first end and the second end of the piece; the second bracket is fixed on the second rail; the damper is installed on the second bracket, and the damper includes a container and a gear pivotally connected to the container , wherein the container contains a damping material to provide resistance to rotation of the gear, and the gear meshes with a part of the teeth of the rack.

Wherein, the first bracket includes: a first longitudinal portion extending longitudinally downward from one end of the first transverse portion, a second transverse portion extending transversely from the bottom end of the first longitudinal portion; and a first The two longitudinal portions extend longitudinally downward from one end of the second transverse portion.

Wherein, the first longitudinal portion of the first bracket includes a plurality of locking holes, the rack includes a plurality of fasteners corresponding to the locking holes, and each fastener has a buckle portion corresponding to each locking hole.

Wherein, the buckle passes through the locking hole and corresponds to a space between the side surfaces of the first longitudinal portion and the second longitudinal portion.

Wherein, 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, which can be locked and positioned with each other.

Wherein, the damper includes a pair of fixing parts extending from the container, and a fixing component is used to connect the fixing parts and the second bracket.

Wherein, the rack has a slot opposite to the first transverse portion of the first bracket, and the first transverse portion can be inserted into the slot.

Description of drawings

To further illustrate and confirm the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

FIG. 1 is an exploded view showing a damping device and a slide rail assembly according to an embodiment of the present invention.

FIG. 2 is an exploded view showing the damping device and the slide rail assembly in another angle according to the embodiment of the present invention.

FIG. 3 is a partially enlarged schematic view showing that the damping device according to the embodiment of the present invention is installed on the slide rail assembly.

FIG. 4 is a schematic view showing the relationship between the slide rail assembly and the damping device in the retracted position according to the embodiment of the present invention.

FIG. 5 is a schematic view showing the relationship between the slide rail assembly and the damping device when deployed according to the embodiment of the present invention.

Fig. 6 is a schematic diagram showing a conventional slide rail assembly.

Detailed ways

As shown in Figures 1 and 2, the slide rail assembly of a preferred embodiment of the present invention includes: a first rail 10; a second rail 12, sliding relative to the first rail 10; a third rail A member 14 is slidably installed between the first rail member 10 and the second rail member 12, so that when the second rail member 12 is completely pulled out relative to the first rail member 10, the third rail member 14 can be used to support, so that the second rail 12 can be pulled out to a longer use distance, and relatively, the extreme end of the second rail 12 can be moved to the front end of the first rail 10; and a damping The device is set corresponding to the first rail 10 and the second rail 12 . in;

The first rail 10 includes a first end 18 and a second end 20 , the second end 20 is opposite to the first end 18 in a longitudinal direction. Wherein, in the illustration, the first end 18 is shown as the front end of the first rail 10 , and the second end 20 is shown as the rear end of the first rail 10 .

The second rail 12 also includes a first end 22 and a second end 24 , the second end 24 is opposite to the first end 22 in a longitudinal direction. Wherein, in the illustration, the first end 22 is shown as the frontmost end of the second rail 12 , and the second end 24 is shown as the rearmost end of the second rail 12 .

The damping device includes a first bracket 26 installed and fixed on the first rail 10; a rack 28 installed and fixed on the first bracket 26; a second bracket 30 installed and fixed on the second rail 12; And a damper 32 is mounted on the second bracket 30 and engages with the rack 28 , as shown in FIG. 4 .

The first bracket 26 includes: a first transverse portion 34; a first longitudinal portion 36 extending longitudinally downward from one end of the first transverse portion 34; a second transverse portion 38 extending from the first longitudinal portion 36 and a second longitudinal portion 40 extending longitudinally downward from one end of the second transverse portion 38 . Wherein, the first transverse portion 34 has a first end 42 and a second end 44 , and the second end 44 is opposite to the first end 42 in a longitudinal direction. The first longitudinal portion 36 includes a plurality of locking holes 46 and a plurality of positioning holes 48 . The second longitudinal portion 40 is used to be fixed on the first rail 10 , for example by riveting.

The rack 28 is mounted on the first transverse 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 10 Between 20. In this embodiment, referring to FIG. 3 , the rack 28 has an engaging groove 52 opposite to the first transverse portion 34 of the first bracket 26 , allowing the first transverse portion 34 to be inserted into the engaging groove 52 . The rack 28 includes: a plurality of fasteners 54 , corresponding to the locking holes 46 ; and a plurality of protrusions 56 , relative to the positioning holes 48 , which can be locked and positioned with each other. Wherein, each fastener 54 has a buckle portion 58 that can be buckled with the locking hole 46 of the first bracket 26 , so that the rack 28 can be stably installed on the first bracket 26 for positioning. In this embodiment, after the buckle 54 is fastened and positioned with the buckle 58 and the first bracket 26, the buckle 58 passes through the locking hole 46 and corresponds to the first longitudinal portion 36 and the second Between the side surfaces 37 and 41 of the longitudinal portion 40, the buckle portion 58 will not protrude laterally from the side surface 41 of the second longitudinal portion 40, and will not affect the flat attachment of the first bracket 26 to the object in practical application. Install.

The damper 32 includes: a container 60 ; a pair of fixing parts 62 extending from the container 60 ; and a gear 64 pivotally connected to the container 60 . Wherein, the damper 32 is connected and fixed to the second bracket 30 by the fixing portion 62 through a fixing component 66 such as a rivet. The container 60 contains a damping material, such as a viscous liquid substance. The gear 64 is connected to the container 60 so as to be able to rotate, and the rotation of the gear 64 relative to the container 60 has a certain amount of resistance by means of the damping material in the container 60, and together constitute a damping assembly. In the present invention, one or more damping assemblies can be arranged on the second bracket 30 according to the requirement of damping force.

FIG. 4 shows that when the second rail 12 is in the retracted position relative to the first rail 10, the gear 64 of the damper 32 is engaged with a part of the teeth 50 of the rack 28, and the damper 32 is positioned At the second end 20 of the first rail 10 , that is, at the extreme end. During the displacement stroke when the second rail 12 is pulled out relative to the first rail 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 64 is driven to rotate and interact with the damping material in the damper 32 to provide resistance, and after the second rail 12 is fully deployed, the damper 32 moves to the first end 18 of the first rail 10 , that is, at the front end. Therefore, the whole displacement of the second rail 12 relative to the first rail 10, no matter in the process of opening or retracting displacement, the gear 64 of the damper 32 is always in contact with one of the teeth 50 of the rack 28. portion remains engaged, and provides a certain amount of resistance relative to the second rail 12, so that the displacement speed of the second rail 12 relative to the first rail 10 can be reduced by the resistance provided by the damper 32. And maintain a stable velocity displacement.

Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, and other modifications can be made without departing from the spirit of the present invention. Various equivalent changes and modifications, therefore, as long as the changes and modifications to the above embodiments are within the true spirit of the present invention, they will all fall within the scope of the claims of the present application.

Claims (7)

1. a damping unit that is used for the slide rail assembly comprises one first rail spare, one second rail spare, one first carriage, a tooth bar, the second carriage and a damper, it is characterized in that:

Described the first rail spare has a first end and reaches relatively one second end of this first end;

Described the second rail spare, slip with respect to this first rail spare;

Described the first carriage is fixed on this first rail spare, and this first carriage has one first transverse part, and this first carriage also comprises one first longitudinal part, and this first longitudinal part is by an end of this first transverse part longitudinal extension down; One second transverse part, this second transverse part is laterally extended by the bottom of this first longitudinal part; And one second longitudinal part, this second longitudinal part is by an end of this second transverse part longitudinal extension down;

Described tooth bar is installed in the first transverse part of this first carriage, and this tooth bar has a plurality of tooth section, between the first end and the second end of these toothed portion cloth corresponding to this first rail spare;

Described the second carriage is fixed on this second rail spare; And

Described damper is installed in this second carriage, and this damper comprises that a container and a gear articulate this container, and wherein, comprising damping material in this container provides this gear rotary resistance, a part of bridle joint of these tooth sections of this gear and this tooth bar.

2. the damping unit for the slide rail assembly according to claim 1, it is characterized in that, the first longitudinal part of described the first carriage comprises a plurality of hole clippings, and this tooth bar comprises a plurality of fasteners with respect to these hole clippings, and each fastener has a buckle portion and corresponding each hole clipping snapping.

3. the damping unit for the slide rail assembly according to claim 2 is characterized in that, described each buckle portion is passed this each hole clipping and between the side corresponding to this first longitudinal part and this second longitudinal part.

4. the damping unit for the slide rail assembly according to claim 1 is characterized in that, the first longitudinal part of described the first carriage comprises a plurality of locating holes, and this tooth bar comprises a plurality of convex bodys with respect to these locating holes, and clamping is located mutually.

5. the damping unit for the slide rail assembly according to claim 1 is characterized in that, described damper comprises that a pair of fixed part is extended by this container, and connects this fixed part and this second carriage with fixation kit.

6. the damping unit for the slide rail assembly according to claim 1 is characterized in that, described tooth bar has relatively the first transverse part of this first carriage of a Ka Gou, and can embed in this card ditch for this first transverse part.

7. the damping unit for the slide rail assembly according to claim 1, it is characterized in that, also comprise one the 3rd rail spare, be installed on slidably between this first rail spare and this second rail spare, when relative this first rail spare of this second rail spare is pulled out, support with the 3rd rail spare, make this second rail spare can be drawn out to longer service range.

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