CN1432325A - Stop assembly with sound dampening and shock absorption for slide rail assemblies - Google Patents

Abstract

The present invention relates to a slide rail assembly, and more particularly, to a stop assembly with noise reduction and shock absorption for a slide rail assembly. The invention provides a stop component for a slide rail component, which comprises a flat plate, a buffering arch-shaped object positioned at the front end of the flat plate, convex strips positioned on the inner surface of the flat plate and U-shaped openings formed on the flat plate, wherein the U-shaped openings divide the convex strips into an introducing part and a stopping part. The stop component is combined with the front end of one slide rail, so that the buffer bow-shaped object protrudes out of the front end of the slide rail, and the shock absorption and noise reduction functions of collision generated when the other slide rail sleeved with the slide rail is completely condensed can be provided. The U-shaped opening of the stop component endows the resisting part with a swing space and elasticity, so that the sound attenuation and shock absorption functions of a release switch can be provided when the two slide rails are completely extended and collide with the resisting part.

Description

Stop assembly with sound dampening and shock absorption for slide rail assemblies

Technical field

The invention relates to a slide rail assembly, in particular to a stopper assembly for the slide rail assembly with functions of noise reduction and shock absorption.

Background technique

A known drawer slide assembly for slidably mounting a drawer in a cabinet mainly includes an outer slide rail approximately C-shaped in section, which is fixed to a vertical wall inside the cabinet; A C-shaped inner slide rail fixed on the drawer; a middle slide rail with a C-shaped section for coupling the inner slide rail to the outer slide rail; a middle slide rail for slidingly combining the inner slide rail with the middle slide rail a first ball bearing assembly; and a second ball bearing assembly for slidingly coupling the middle slide rail to the outer slide rail so that the drawer can be pushed in or pulled out between a fully closed position and a fully extended position cabinet. A typical drawer slide assembly can be found in US Patent No. 5,507,571.

Japanese Patent Application Publication No. Sho 63-157347 discloses a drawer slide rail assembly. This drawer slide rail assembly includes an inner slide rail, an outer slide rail and a ball bearing assembly for slidingly combining the inner slide rail with the outer slide rail. Surface, and a disengagement switch made of plastics are pivotally connected on the inner surface near the end of the inner slide rail. The stopper assembly is used to prevent the ball bearing assembly from detaching from the front end of the outer slide rail, and the stopper assembly cooperates with a disengagement switch to detachably combine the inner slide rail with the outer slide rail. The contents of this prior application are incorporated by reference into the present application. The stop assembly of the prior proposal has the following disadvantages:

-It is combined on the slide rail by riveting, the combination work is time-consuming and increases the cost;

- When the stopper assembly collides with the disengagement switch, there is no sound-absorbing and shock-absorbing function;

- When the inner slide rail is fully retracted into the outer slide rail, the stop assembly fails to provide a proper cushioning effect on the upstanding piece at the front end of the inner slide rail, thereby achieving the effect of noise reduction and shock absorption.

US Patent No. 5,255,983 discloses a disengagement switch for a drawer slide rail assembly. The disengagement switch has a buffering effect when a stopper assembly collides with the disengagement switch to achieve shock absorption.

Contents of the invention

The main purpose of the present invention is to provide a stopper assembly for a slide rail assembly which does not have the disadvantages of the above-mentioned Japanese Patent Application Publication No. Sho 63-157347.

In order to achieve the above object, the stop assembly for the slide rail assembly completed according to the content of the present invention includes a flat plate, a raised line on the inner surface of the flat plate, and a ∪-like opening formed on the flat plate, wherein the like The ∪-shaped opening divides the protrusion into an introduction portion and a resisting portion, and the resisting portion is located at the bottom of the similar ∪-shaped opening. The stop assembly can be combined with the front end of a slide rail. The ∪-like opening of the stopper assembly gives the resisting part a swing space and elasticity, so it can provide a disengagement switch of the other sliding rail that is socketed with the sliding rail, and when the two sliding rails are fully extended to each other, the noise reduction of the collision with the resisting part can be provided. and shock absorbing function.

Preferably, the stop assembly further includes a buffer bow located at the front end of the plate, when the stop assembly is combined with the front end of the slide rail, the buffer bow protrudes from the front end of the slide rail, thus providing the slide rail The shock absorption and noise reduction function of the collision that occurs when the two are fully condensed with the other slide rail.

Preferably, the stop assembly further includes two cylinders located on both sides of the plate and extending perpendicularly to the inner surface of the plate, and the two cylinders are adapted to be engaged in two ball grooves on both sides of the slide rail.

Preferably, the stop component is further provided with a protruding portion on the outer surface of the plate, which is adapted to be received in a corresponding hole at the front end of the slide rail. More preferably, a part of the protruding part protrudes from the rear end of the plate, and a protruding locking point is provided on the protruding part, wherein the locking point is protruding when the stopper assembly is combined with the slide rail at the level of the inner surface of the slide rail.

Preferably, the bow of the stop assembly is further provided with a crescent-shaped configuration on its inner concave surface

Preferably, the stop component is formed with a slope on the opposite side of the introduction part and the two cylinders, so as to facilitate the end of the other slide rail and its disengagement switch to be introduced into the stop component and the inner surface of the slide rail

The stop assembly of the present invention is combined with the front end of a slide rail, so that the buffer bow protrudes from the front end of the slide rail, so that the collision generated when the other slide rail is sleeved with the slide rail is fully condensed The shock absorption and noise reduction function. The ∪-like opening of the stopper component gives the resisting part a swing space and elasticity, thus providing a sound-absorbing and shock-absorbing function of a disengagement switch when the two slide rails collide with the resisting part when they are fully extended.

Description of drawings

FIG. 1 is an exploded perspective view of a slide rail assembly completed according to a preferred embodiment of the present invention.

FIG. 2 is a schematic perspective view of another side of the assembled slide rail assembly in FIG. 1 .

FIG. 3 is a schematic perspective view showing a disengagement switch 50 of the inner slide rail 40 in FIG. 1 in contact with the stopper assembly 10 .

FIG. 4 is a top view of the stopper assembly 10 in FIG. 1 .

FIG. 5 is an enlarged perspective view showing the middle sliding rail 20 and the stop assembly 10 in FIG. 1 before being combined. Reference numerals 10. Stop assembly 20. Middle slide rail 30. Ball bearing 40. Inner slide rail 50. Disengagement switch 11. Flat plate 12. Cylinder 13. Bow 14. Protruding strip 14a. Introduction part 14b. Resisting part 15. ∪-like opening 16, 17. Protruding part 18. Protruding sticking point 19a, 19b. Inclined surface 131. Luna-shaped structure 21. Missing 22. Square hole 41, 51. Perforation . 3 52. Fingertip vertical wall

Detailed ways

As shown in Figure 1, the improved stopper assembly 10 completed according to a preferred embodiment of the present invention is installed on the front end of a middle slide rail 20, and the stopper assembly is used to prevent a ball bearing 30 from The front end of the slide rail 20 protrudes and is used to limit the moving distance of an inner slide rail 40 in the longitudinal direction on the middle slide rail 20 . FIG. 2 shows the situation on the other side after the components in FIG. 1 are assembled. Fig. 3 omits the ball bearing 30 in Fig. 1 and shows a situation in which a disengagement switch 50 is in contact with the stop assembly 10, wherein a rivet (not shown in the figure) is inserted into a through hole 51 at the end of the disengagement switch 50 and the inner slide rail A pair of corresponding through holes 41 near the end of the inner sliding rail 20 pivotally connects the disengagement switch 50 to the inner surface near the end of the inner sliding rail 20 . The disconnect switch 50 is not shown in FIGS. 1 and 2 .

As shown in FIGS. 1 to 3 , the inner slide rail 40 and the middle slide rail 20 are slidably combined through ball bearings 30 , and their combination is not described in detail here because their combination is known. When the inner slide rail 40 is pulled out by the opposite front end of the middle slide rail 20, the inner slide rail 40 together with the ball bearing 30 will move along the longitudinal direction of the middle slide rail 20 until the disengagement switch 50 contacts the stopper assembly 10 (as shown in FIG. 3). At this time, if the inner slide rail 40 is pushed in the opposite direction, the inner slide rail 40 together with the ball bearing 30 will retract in the middle slide rail 20 until an upright piece 42 bent at the front end of the inner slide rail 40 touches the stop assembly 10 ( as shown in picture 2).

The main purpose of the present invention is to provide an improved stop assembly 10 . As shown in Figures 4 and 5, the stop assembly 10 has a cross-sectional shape corresponding to the surface shape of the middle slide rail 20, which includes a flat plate 11, two cylinders 12 extending vertically on both sides of the flat plate, located on the flat plate The buffer bow 13 at the front end of the flat plate, the convex strip 14 on the inner surface of the flat plate, and the ∪-shaped opening 15 formed on the flat plate, wherein the ∪-shaped opening divides the protruding strip 14 into an introduction portion 14a and a resisting portion 14b. The stop assembly 10 is further protruded on the outer surface of the flat plate with two spaced protruding portions 16 and 17, whose equal shape and size correspond to a notch 21 at the front end of the middle slide rail 20 and a square hole near the front end respectively. 22 (the protruding portion 16 is only seen in FIG. 2 ), and the protruding portions 16 and 17 have a height approximately equal to the wall thickness of the middle slide rail 20 . The two cylinders 12 have the position, shape and size of the two ball grooves matching the middle slide rail 20 . The stopper assembly 10 is made of plastic material through injection molding, so it has some elasticity. Then the stop assembly 10 can be elastically engaged on the inner surface of the middle slide rail 20, and protrude into the notch 21 and the square hole 22 through the protruding parts 16 and 17 respectively, and be combined with the middle slide rail 20. front end (as shown in Figure 2). As shown in Fig. 4 and Fig. 5, a part of the protruding part 17 protrudes from the rear end of the flat plate 11, and a protruding clamping point 18 is provided on the protruding part 17 of the protruding part, wherein the clamping point 18 protrudes beyond the level of the inner surface of the middle slide rail 20 when the stop assembly 10 is combined with the middle slide rail 20 .

As can be clearly understood from FIGS. 1 , 3 and 4 , when the inner slide rail 40 is relatively pulled out from the front end of the middle slide rail 20 , the abutting portion 14 b of the stopper assembly 10 will provide the disengagement of the inner slide rail 40 . When the switch 50 collides with it, the sound-absorbing and shock-absorbing functions (because the ∪-like opening of the stopper assembly 10 gives the resisting portion 14b a swinging space and elasticity). At this time, if a fingertip portion 52 of the disengagement switch 50 is further moved to rotate clockwise by a small angle around the pivot point, a vertical wall 53 of the disengagement switch 50 can be disengaged from the resisting portion 14b of the stop assembly 10 , so the inner slide rail 40 can break away from the middle slide rail 20 . Through the setting of the protruding clamping point 18 on the stopper assembly 10, the front end 31 of the flat plate part of the ball bearing 30 will move outward along the inner slide rail 20, and at the same time touch the reef on the protruding clamping point 18, making the inner slide When the rail 40 enters the middle slide rail 20 next time, the relative position between the inner slide rail 40 and the ball bearing 30 in the longitudinal direction of the middle slide rail 20 can be correctly maintained. The introduction part 14a of the stop assembly 10 is formed with a slope 19a and the opposite sides of the two cylinders 12 are respectively formed with a slope 19b, so as to facilitate the end of the inner slide rail 40 and its disengagement switch 50 to be introduced into the stop assembly 10 and the middle slide rail 20 on the inner surface.

The arch 13 of the stop assembly 10 is further provided with a crescent-shaped structure 131 on its inner concave surface, so that when the inner slide rail 40 is fully retracted into the middle slide rail 20 (as shown in FIG. 2 ), an inner An appropriate cushioning effect of the upright piece 42 of the slide rail 40 achieves the effects of noise reduction and shock absorption.

Claims (7)

1. stopping element that is used for slide track component, comprise a flat board, one is positioned at the raised line on the dull and stereotyped inner surface, and be formed at similar shape U opening on the flat board, wherein the similar shape U opening bar of will dashing forward is divided into an introduction part and a blocking part, and the blocking part is positioned at the bottom of similar shape U opening, so the similar shape U opening gives the blocking part one swing space and elasticity, wherein stopping element is suitable for being incorporated into the front end of a slide rail, make dull and stereotyped inner surface be attached on the inner surface of slide rail, break away from switch so can provide, at two slide rails each other during full extension, with the noise reduction and the shock-absorbing function of blocking part collision with one of another slide rail of slide rail socket.

2. stopping element as claimed in claim 1, wherein stopping element further comprises a buffering arcs that is positioned at dull and stereotyped front end, when stopping element is incorporated into the front end of slide rail, the buffering arcs protrudes in the front end of slide rail, so the damping and the silencing function of the collision that is taken place when the complete condensation of slide rail and another slide rail can be provided.

3. stopping element as claimed in claim 1, wherein stopping element further comprises two cylinders that are positioned at these dull and stereotyped both sides, extend perpendicular to the inner surface of flat board, and two cylinders are suitable for being sticked in the two ball grooves of both sides of slide rail.

4. stopping element as claimed in claim 1, wherein stopping element further convexes with one and protrudes partly on the outer surface of flat board, and it is suitable for being undertaken in a corresponding aperture of the front end of slide rail.

5. stopping element as claimed in claim 4, wherein protruding partly some is to stretch out in dull and stereotyped rear end, and partly is provided with one and protrudes stuck point stretching out, wherein stuck point is the level that protrudes from the inner surface of slide rail when stopping element is incorporated into slide rail.

6. stopping element as claimed in claim 2, wherein arcs within it concave surface further be provided with a first month shape structure.

7. stopping element as claimed in claim 3, wherein introduction part and two cylinder opposite sides have been formed an inclined-plane respectively, are imported on the inner surface of stopping element and slide rail to make things convenient for the terminal of another slide rail and to break away from switch.

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