CN117941930A - Sliding rail assembly - Google Patents

Abstract

The invention relates to a sliding rail assembly, which comprises a first rail, a second rail, a sliding assisting device and a working piece. The second rail is movably arranged in a channel of the first rail, and the second rail can be displaced relative to the first rail; the sliding assisting device is movably arranged between the first rail and the second rail and comprises a clamping feature; the working piece is arranged on the first rail and comprises a main body part, an elastic part and a preset part, wherein the elastic part is used for supporting the main body part, and the preset part is connected with the main body part; the first rail is provided with a supporting part for supporting the elastic part of the workpiece; when the sliding assisting device is at a preset position, the sliding assisting device can be clamped to a preset part of the workpiece through the clamping feature.

Description

Slide rail assembly

Technical Field

The invention relates to a slide rail assembly which is reliable in use.

Background technique

For example, U.S. Patent Publication No. US 6,851,773B2 discloses a slide-assisting member positioning structure of a drawer slide rail, which includes a first rail, a second rail, a slide-assisting member, and a positioning member. The slide-assisting member is movably installed between the first rail and the second rail, and a slot is set at the front end of the slide-assisting member; the positioning member is set at the passage opening of the first rail. When the second rail moves in an opening direction relative to the first rail and is removed from the passage of the first rail, the positioning member can be locked to the slot of the slide-assisting member through an elastic hook rod (the hook portion) to prevent the slide-assisting member from sliding arbitrarily relative to the first rail, which helps the support or stability of the second rail when it is reinserted into the passage of the first rail.

For example, US Patent Publication No. US 7,648,214B2 discloses a slide rail bearing carrier positioning device, which includes a bearing rail, a sliding rail and a bearing carrier. The front end of the bearing rail is provided with a support seat for the sliding rail to slide against, and a hook is provided at the support seat. The hook is pivotally connected to a stopper and can swing. The stopper is fixed to the front end of the bearing rail and covers a part of the support seat. A slot is formed on the support seat. An elastic rod is formed on one side of the slot and has an elastic force to restore the swing of the hook. The bearing carrier is arranged between the sliding rail and the bearing rail, and has a ball as a sliding medium between the sliding rail and the bearing rail, and a convex hook is provided at the front end. Accordingly, when the bearing carrier moves to the support seat, the front end of the bearing carrier can be pressed by the stopper and positioned by the hook through the convex hook.

Although the above patent case has disclosed the relevant technical features of the slide assist member positioning structure and the bearing member positioning device, however, as market demands vary, how to develop a different slide rail product has become an issue that cannot be ignored.

Summary of the invention

The object of the present invention is to provide a reliable slide rail assembly.

According to one aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a slide-assisting device, and a working piece. The first rail includes a channel; the second rail is movably mounted in the channel of the first rail, and the second rail can be displaced relative to the first rail; the slide-assisting device is movably mounted between the first rail and the second rail, and the slide-assisting device includes a latching feature; the working piece is arranged on the first rail, and the working piece includes a main body, an elastic part, and a predetermined part, the elastic part is used to support the main body, and the predetermined part is connected to the main body; wherein the first rail is arranged with a supporting part to support the elastic part of the working piece; wherein, when the second rail is displaced in an opening direction relative to the first rail and removed from the channel of the first rail, the slide-assisting device is in a predetermined position, and the slide-assisting device can be latched to the predetermined part of the working piece through the latching feature.

Preferably, the first track includes a first wall, a second wall and a longitudinal wall, the longitudinal wall is connected between the first wall and the second wall of the first track, and the first wall, the second wall and the longitudinal wall of the first track jointly define the channel.

Preferably, the working member is movably mounted on the longitudinal wall of the first rail.

Preferably, the main body of the working member is pivotally connected to the longitudinal wall of the first rail.

Preferably, the elastic portion of the working piece has a first section and a second section, the first section of the elastic portion of the working piece is connected to the main body, and a predetermined space is defined between the second section of the elastic portion of the working piece and the main body.

Preferably, the predetermined portion of the workpiece includes a first guide feature, a second guide feature and a hole located between the first guide feature and the second guide feature, the hole is defined by a plurality of hole walls, and the hole is used to provide a latching feature of the sliding aid device.

Preferably, the size of the aperture is substantially larger than the size of the latch feature.

Preferably, the second rail includes a release feature; when the second rail is reinserted into the channel of the first rail from outside the channel of the first rail in a folding direction, the second rail contacts one of the first guide feature and the second guide feature through the release feature to drive the predetermined portion of the workpiece, so that the latching feature of the sliding aid device is released from the hole of the predetermined portion of the workpiece, so as to allow the sliding aid device to move from the predetermined position to the folding direction.

Preferably, the sliding aid device further includes a first portion, a second portion and a longitudinal portion, the longitudinal portion is connected between the first portion and the second portion, the first portion, the second portion and the longitudinal portion respectively correspond to the first wall, the second wall and the longitudinal wall of the first rail; the first portion and the second portion of the sliding aid device are both arranged with a plurality of balls to respectively support the first wall and the second wall of the first rail.

Preferably, the latching feature of the sliding aid device is a latching hook.

According to another aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a slide-assisting device, and a working piece. The first rail includes a channel; the second rail is movably mounted in the channel of the first rail, and the second rail can be displaced relative to the first rail; the slide-assisting device is movably mounted between the first rail and the second rail, and the slide-assisting device includes a latching feature; the working piece is arranged on the first rail, the working piece includes a main body, an elastic part, and a predetermined part, the elastic part is used to support the main body, the predetermined part is connected to the main body, and the predetermined part includes a hole, which is defined by a plurality of hole walls; wherein, when the second rail is displaced in an opening direction relative to the first rail and is removed from the channel of the first rail, the slide-assisting device extends into the hole of the predetermined part of the working piece through the latching feature to prevent the slide-assisting device from arbitrarily displacing relative to the first rail.

Preferably, the first track includes a first wall, a second wall and a longitudinal wall, the longitudinal wall is connected between the first wall and the second wall of the first track, and the first wall, the second wall and the longitudinal wall of the first track jointly define the channel.

Preferably, the working member is movably mounted on the longitudinal wall of the first rail.

Preferably, the main body of the working member is pivotally connected to the longitudinal wall of the first rail.

Preferably, the elastic portion of the working piece has a first section and a second section, the first section of the elastic portion of the working piece is connected to the main body, and a predetermined space is defined between the second section of the elastic portion of the working piece and the main body.

Preferably, the predetermined portion of the workpiece includes a first guide feature and a second guide feature, and the hole is located between the first guide feature and the second guide feature.

Preferably, the size of the aperture is substantially larger than the size of the latch feature.

Preferably, the second rail includes a release feature; when the second rail is reinserted into the channel of the first rail from outside the channel of the first rail in a folding direction, the second rail contacts one of the first guide feature and the second guide feature through the release feature to drive the predetermined portion of the workpiece, so that the latching feature of the sliding aid device is released from the hole of the predetermined portion of the workpiece, so as to allow the sliding aid device to move from a predetermined position to the folding direction.

Preferably, the sliding aid device further includes a first portion, a second portion and a longitudinal portion, the longitudinal portion is connected between the first portion and the second portion, the first portion, the second portion and the longitudinal portion respectively correspond to the first wall, the second wall and the longitudinal wall of the first rail; the first portion and the second portion of the sliding aid device are both arranged with a plurality of balls to respectively support the first wall and the second wall of the first rail.

Preferably, the predetermined portion of the work piece is arranged with an extension section adjacent to the hole, and when the sliding aid extends into the hole of the predetermined portion of the work piece through the latch feature, the latch feature corresponds to the extension section.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG. 1 is a schematic three-dimensional assembly diagram of a slide rail assembly according to an embodiment of the present invention.

FIG. 2 is an exploded schematic diagram showing a slide rail assembly according to an embodiment of the present invention.

FIG. 2A is a schematic diagram showing a working piece of a slide rail assembly according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing a first rail of the slide rail assembly according to an embodiment of the present invention.

FIG. 4 is a schematic diagram showing a second rail of the slide rail assembly according to an embodiment of the present invention being displaced in an opening direction relative to the first rail.

FIG. 5 is a schematic diagram showing the second rail of the slide rail assembly according to the embodiment of the present invention moving further toward the opening direction relative to the first rail.

FIG. 6 is a schematic diagram showing the second rail of the slide rail assembly according to the embodiment of the present invention being further displaced toward the opening direction relative to the first rail.

7 is a schematic diagram showing that the first rail of the slide rail assembly according to the embodiment of the present invention is in an extended position relative to a third rail, and the second rail is removed from the channel of the first rail in the opening direction.

FIG. 8 is a schematic diagram showing the second rail of the slide rail assembly according to the embodiment of the present invention being reinserted into the channel of the first rail in a folding direction.

FIG. 9 is a schematic diagram showing the second rail of the slide rail assembly according to the embodiment of the present invention being displaced toward the folding direction relative to the first rail.

FIG. 10 is a schematic diagram showing the second rail of the slide rail assembly according to the embodiment of the present invention continuing to move toward the folding direction relative to the first rail.

FIG. 11 is a schematic diagram showing the second rail of the slide rail assembly according to the embodiment of the present invention being further displaced toward the folding direction relative to the first rail.

Detailed ways

As shown in FIG. 1 and FIG. 2 , a slide rail assembly 20 according to an embodiment of the present invention includes a first rail 22, a second rail 24, a slide aid 26 and a working piece 28. Preferably, a third rail 30 is also included. The first rail 22 is movably installed between the third rail 30 and the second rail 24, and the first rail 22 can be used to extend the displacement stroke of the second rail 24 relative to the third rail 30. In this embodiment, the third rail 30 (for example, an outer rail), the first rail 22 (for example, a middle rail) and the second rail 24 (for example, an inner rail) can be longitudinally displaced relative to each other. As shown in FIG. 1 , the X-axis is the longitudinal direction (or the length direction of the slide rail), the Y-axis is the transverse direction (or the lateral direction of the slide rail), and the Z-axis is the vertical direction (or the height direction of the slide rail).

The first rail 22 includes a channel 32. Preferably, the first rail 22 includes a first wall 34a, a second wall 34b and a longitudinal wall 36, the longitudinal wall 36 is connected between the first wall 34a and the second wall 34b of the first rail 22, and the first wall 34a, the second wall 34b and the longitudinal wall 36 of the first rail 22 jointly define the channel 32. The first rail 22 has a front end 22a and a rear end 22b.

The second rail 24 is movably mounted in the channel 32 of the first rail 22, and the second rail 24 can be longitudinally displaced relative to the first rail 22. The second rail 24 includes a first wall 38a, a second wall 38b, and a longitudinal wall 40, and the longitudinal wall 40 is connected between the first wall 38a and the second wall 38b of the second rail 24. The second rail 24 includes a release feature 37, such as a protrusion, and the release feature 37 includes a first guide structure 39a and a second guide structure 39b; the first guide structure 39a and the second guide structure 39b are an inclined surface or a curved surface, but the implementation is not limited thereto.

The sliding aid device 26 is movably installed between the first rail 22 and the second rail 24 , and the sliding aid device 26 includes a latch feature 42 , such as a latch hook. Preferably, the slide-aiding device 26 further includes a first portion 44a, a second portion 44b and a longitudinal portion 46, the longitudinal portion 46 is connected between the first portion 44a and the second portion 44b, and the first portion 44a, the second portion 44b and the longitudinal portion 46 correspond to the first wall 34a, the second wall 34b and the longitudinal wall 36 of the first rail 22, respectively; the first portion 44a and the second portion 44b of the slide-aiding device 26 are both arranged with a plurality of balls 48 (due to the viewing angle, only the balls 48 on the second portion 44b are shown in FIGS. 1 and 2 ), the balls 48 of the first portion 44a and the balls 48 of the second portion 44b are used to respectively support the first wall 34a and the second wall 34b of the first rail 22, and to respectively support the first wall 38a and the second wall 38b of the second rail 24, thereby facilitating the smoothness of the relative displacement of the second rail 24 and the first rail 22.

2, 3 and 4, the working member 28 is arranged on the longitudinal wall 36 of the first rail 22, and the working member 28 is adjacent to the front end 22a of the first rail 22. The working member 28 includes a main body 50, an elastic portion 52 and a predetermined portion 54 (this portion can be referred to in conjunction with FIG. 2A).

Preferably, the working member 28 is movably mounted on the longitudinal wall 36 of the first rail 22. For example, the main body 50 of the working member 28 is pivotally connected to the longitudinal wall 36 of the first rail 22 through a shaft 56, but the implementation is not limited thereto.

The elastic portion 52 is used to support the main body 50 . The elastic portion 52 is, for example, an elastic arm, but the implementation is not limited thereto. The predetermined portion 54 is connected to the main body 50 .

Preferably, the longitudinal wall 36 of the first rail 22 is provided with a support portion 58 for supporting the elastic portion 52 of the working member 28 (as shown in FIGS. 3 and 4 ).

Preferably, the main body 50 of the working piece 28 has a first end E1 and a second end E2 that are opposite to each other; the predetermined portion 54 is adjacent to the first end E1 of the main body 50 (as shown in FIG. 2A ).

Preferably, the elastic portion 52 of the working piece 28 has a first section 60a and a second section 60b extending from the first section 60a; wherein the first section 60a is connected to the main body 50 and adjacent to the second end E2 of the main body 50, and a predetermined space J is defined between the second section 60b and the main body 50 (as shown in FIG. 2A ). When the working piece 28 is in a first state S1, through the predetermined space J, the main body 50 of the working piece 28 and the second section 60b of the elastic portion 52 maintain a spacing G.

Preferably, the predetermined portion 54 of the workpiece 28 includes a first guide feature 62, a second guide feature 64, and a hole 66 located between the first guide feature 62 and the second guide feature 64. The first guide feature 62 and the second guide feature 64 are an inclined surface or an arc surface, and the hole 66 is defined by a plurality of hole walls. For example, the predetermined portion 54 includes a first hole wall 68a, a second hole wall 68b, a third hole wall 68c, and a fourth hole wall 68d. These hole walls 68a, 68b, 68c, and 68d together define the hole 66 (as shown in FIG. 2A ).

Preferably, the main body 50 , the elastic portion 52 and the predetermined portion 54 can be integrated into one body, so that the working piece 28 becomes a single component (as shown in FIG. 2A ).

As shown in FIG4 , the latch feature 42 of the slide assisting device 26 has a guide section 70, which is an inclined surface or an arc surface. On the other hand, the working member 28 is in the first state S1, and the supporting portion 58 of the longitudinal wall 36 of the first rail 22 is used to support at least a portion of the second section 60b of the elastic portion 52 of the working member 28. In addition, the predetermined portion 54 of the working member 28 is arranged with an extension section 72 adjacent to the hole 66, for example, the extension section 72 extends from the first hole wall 68a toward the second wall 34b of the first rail 22.

When the second rail 24 moves from a folded position to an opening direction D1 to a predetermined stroke relative to the first rail 22, the release feature 37 contacts the first guide feature 62 through the first guide structure 39a, so that the release feature 37 can easily pass over the predetermined portion 54 of the working piece 28, and the sliding aid device 26 also moves in the opening direction D1 in response to the displacement of the second rail 24. During this process, the latch feature 42 (the guide section 70) of the sliding aid device 26 will contact the first guide feature 62 of the predetermined portion 54 of the working piece 28. Since this part is a technical scope that can be understood by ordinary knowledgeable people familiar with the field, it will not be further elaborated here.

As shown in Figure 5, when the second rail 24 continues to move in the opening direction D1 relative to the first rail 22, the mutual contact between the latch feature 42 (the guide section 70) of the sliding aid 26 and the first guide feature 62 of the predetermined portion 54 of the working piece 28 can generate a force to drive the working piece 28, so that the working piece 28 moves from the first state S1 to a second state S2, for example, pivots from the first state S1 to a predetermined rotation direction R to the second state S2. At this time, the working piece 28 accumulates an elastic force through the elastic portion 52.

Preferably, the mutual support between the support portion 58 of the longitudinal wall 36 of the first rail 22 and the second section 60b of the elastic portion 52 of the working piece 28 can be used as a support point to help the working piece 28 pivot from the first state S1 to the second state S2, wherein, during the process of the working piece 28 pivoting to the second state S2, the main body 50 of the working piece 28 and the second section 60b of the elastic portion 52 can approach each other through the predetermined space J, and the first section 60a of the elastic portion 52 of the working piece 28 is tilted at a predetermined angle relative to the second section 60b (or the support portion 58 of the longitudinal wall 36 of the first rail 22), so that the working piece 28 accumulates the elastic force through the elastic portion 52.

Preferably, the working piece 28 further includes a bending section 55 extending from the first end E1 of the main body 50, and the longitudinal wall 36 of the first rail 22 is arranged with a corresponding space 57, and the corresponding space 57 can provide the bending section 55 to penetrate, so that the longitudinal wall 36 of the first rail 22 can provide support for the bending section 55, which helps to stabilize the working piece 28 during movement (such as pivoting).

As shown in FIGS. 6 and 7 , when the second rail 24 is further displaced in the opening direction D1 relative to the first rail 22 and is removed from the channel 32 of the first rail 22 , the sliding aid 26 moves to a predetermined position K adjacent to the front end 22 a of the first rail 22 , and the sliding aid 26 can be latched to the hole 66 of the predetermined portion 54 of the working piece 28 through the latch feature 42 .

Specifically, when the sliding device 26 is in the predetermined position K, the latch feature 42 of the sliding device 26 corresponds to the hole 66 of the predetermined portion 54, and the working piece 28 releases the elastic force through the elastic portion 52, so that the working piece 28 recovers from the second state S2 to the first state S1 (for example, a locked state), and the sliding device 26 extends into the hole 66 of the predetermined portion 54 of the working piece 28 through the latch feature 42. The latch feature 42 corresponds to the first hole wall 68a (and the extension section 72) to prevent the sliding device 26 from arbitrarily displacing relative to the first rail 22. For example, the latch feature 42 can be blocked by the first hole wall 68a (and the extension section 72) to prevent the sliding device 26 from displacing relative to the first rail 22 from the predetermined position K to a retracting direction D2 (as shown in FIG. 6).

As shown in Fig. 8, the slide-assisting device 26 is in the predetermined position K, and the working member 28 is in the first state S1 (e.g., locked state), which can be used to lock the latching feature 42 of the slide-assisting device 26. When the second rail 24 is reinserted into the channel 32 of the first rail 22 from outside the channel 32 of the first rail 22 in the folding direction D2, the first wall 38a and the second wall 38b of the second rail 24 can be pre-supported by the balls 48 of the first portion 44a and the balls 48 of the second portion 44b of the slide-assisting device 26, respectively, which helps to ensure stability or smoothness when the second rail 24 is inserted into the channel 32 of the first rail 22 in the folding direction D2.

As shown in FIGS. 9 , 10 and 11 , when the second rail 24 continues to be inserted into the channel 32 of the first rail 22 in the folding direction D2, the second rail 24 can drive the working piece 28 through the release feature 37 to release the latch feature 42 of the slide-assisting device 26 from the hole 66 of the predetermined portion 54 of the working piece 28, so as to allow the slide-assisting device 26 to move from the predetermined position K to the folding direction D2.

Specifically, when the second rail 24 continues to be inserted into the channel 32 of the first rail 22 in the folding direction D2, the second guide structure 39b of the release feature 37 of the second rail 24 will contact the second guide feature 64 of the predetermined portion 54 of the working piece 28 to generate another force that can drive the working piece 28, so that the working piece 28 moves from the first state S1 (for example, the locked state, as shown in FIG. 9 ) to the second state S2 (for example, the unlocked state, as shown in FIG. 10 ), for example, pivoting from the first state S1 to the predetermined rotation direction R to the second state S2, so that the latching feature 42 of the sliding aid device 26 is released from the hole 66 of the predetermined portion 54 of the working piece 28.

Preferably, the mutual support between the support portion 58 of the longitudinal wall 36 of the first rail 22 and the second section 60b of the elastic portion 52 of the working piece 28 can be used as a support point to help the working piece 28 pivot from the first state S1 (as shown in FIG. 9 ) to the second state S2 (as shown in FIG. 10 ), wherein, during the process of the working piece 28 pivoting to the second state S2, through the predetermined space J, the main body 50 of the working piece 28 and the second section 60b of the elastic portion 52 can approach each other (as shown in FIG. 10 ), and the first section 60a of the elastic portion 52 of the working piece 28 is tilted at a predetermined angle relative to the second section 60b (or the support portion 58 of the longitudinal wall 36 of the first rail 22 ), so that the working piece 28 accumulates an elastic force through the elastic portion 52.

When the second rail 24 is further displaced in the folding direction D2 relative to the first rail 22, the sliding aid 26 can move from the above-mentioned predetermined position K to the folding direction D2 in response to the displacement of the second rail 24, and the elastic portion 52 of the working piece 28 releases the elastic force, so that the working piece 28 can be restored from the second state S2 (as shown in FIG. 10) to the first state S1 (as shown in FIG. 11).

It is worth mentioning that, as shown in Fig. 9, the size of the hole 66 of the predetermined portion 54 is substantially larger than the size of the latch feature 42 of the sliding aid device 26. Specifically, a longitudinal dimension of the hole 66 is defined between the first hole wall 68a and the second hole wall 68b, and the longitudinal dimension of the hole 66 is substantially larger (or slightly larger) than the longitudinal dimension of the latch feature 42 (e.g., the hook), so that the hole 66 has a predetermined looseness when accommodating the latch feature 42. According to this configuration, when the second rail 24 is inserted into the channel 32 of the first rail 22 in the folding direction D2, and the second rail 24 drives the working piece 28 to move from the first state S1 to the second state S2 through the release feature 37 (the second guide structure 39b), due to the predetermined looseness, the latching feature 42 of the sliding aid device 26 can be easily released from the hole 66 of the predetermined portion 54 of the working piece 28, thereby avoiding the problem that the latching feature 42 and the hole wall of the hole 66 (such as the first hole wall 68a and the second hole wall 68b) are too tightly locked with each other and difficult to release from each other, or the latching feature 42 of the sliding aid device 26 and the predetermined portion 54 of the working piece 28 may be deformed or damaged when they are released from each other due to excessive locking.

It can be seen that the slide rail assembly 20 of the embodiment of the present invention includes the following features:

1. When the predetermined portion 54 of the working piece 28 is subjected to an external force (such as the above-mentioned force), since the working piece 28 can move (for example, pivot) relative to the first rail 22 and the working piece 28 has elasticity through the elastic portion 52, the external force can be mitigated to prevent the predetermined portion 54 of the working piece 28 from being deformed due to the force, which helps to improve the reliability of the slide rail assembly 20 in use.

2. The size of the hole 66 of the predetermined portion 54 is substantially larger than the size of the latch feature 42 of the sliding aid device 26 .

3. The main body 50, the elastic portion 52 and the predetermined portion 54 can be integrated into one body, so that the working piece 28 becomes a single component.

Although the present invention has been described with reference to the current specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and various equivalent changes and modifications may be made without departing from the spirit of the present invention. Therefore, any changes and modifications to the above embodiments within the spirit of the present invention will fall within the scope of the claims of this application.

Claims (20)

1. The utility model provides a slide rail assembly, includes a first rail, a second rail, a helping smooth device and a work piece, and wherein, this first rail contains a passageway, and this second rail movably installs the passageway at this first rail, and this second rail can be relative this first rail displacement, and this helps smooth device movably to install between this first rail and this second rail, its characterized in that:

the sliding assisting device comprises a clamping feature; and

The working piece is arranged on the first rail and comprises a main body part, an elastic part and a preset part, wherein the elastic part is used for supporting the main body part, and the preset part is connected with the main body part;

wherein the first rail is provided with a supporting part for supporting the elastic part of the workpiece;

When the second rail is displaced towards an opening direction relative to the first rail and is detached from the channel of the first rail, the sliding assisting device is positioned at a preset position, and the sliding assisting device can be clamped to a preset part of the workpiece through the clamping feature.

2. The slide rail assembly of claim 1 wherein the first rail includes a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the first rail, the first wall, the second wall, and the longitudinal wall of the first rail together defining the channel.

3. The slide assembly of claim 2 wherein the working member is movably mounted to a longitudinal wall of the first rail.

4. The slide assembly of claim 3 wherein the body portion of the working member is pivotally connected to the longitudinal wall of the first rail.

5. The slide rail assembly of claim 3 wherein the resilient portion of the working member has a first section and a second section, the first section of the resilient portion of the working member being connected to the main body portion, the second section of the resilient portion of the working member defining a predetermined space therebetween.

6. The slide assembly of claim 5 wherein the predetermined portion of the workpiece includes a first guide feature, a second guide feature, and a hole between the first guide feature and the second guide feature, the hole defined by a plurality of walls of the hole for providing a detent feature of the slide assist device.

7. The slide assembly of claim 6 wherein the aperture is sized substantially larger than the detent feature.

8. The slide assembly of claim 6 wherein the second rail includes a release feature; when the second rail is reinserted into the channel of the first rail from the outside of the channel of the first rail to a folding direction, the second rail can drive the working piece through one of the first guiding feature and the second guiding feature contacted by the releasing feature, so that the clamping feature of the sliding assisting device is arranged from the hole Jie Che of the preset part of the working piece to allow the sliding assisting device to move from the preset position to the folding direction.

9. The slide rail assembly of claim 2 wherein the slide assist device further comprises a first portion, a second portion, and a longitudinal portion, the longitudinal portion being connected between the first portion and the second portion, the first portion, the second portion, and the longitudinal portion respectively corresponding to the first wall, the second wall, and the longitudinal wall of the first rail; the first and second parts of the sliding aid are provided with a plurality of balls for supporting the first and second walls of the first rail respectively.

10. The slide assembly of claim 1 wherein the detent feature of the slide assist device is a detent.

11. The utility model provides a slide rail assembly, includes a first rail, a second rail, a helping smooth device and a work piece, and wherein, this first rail contains a passageway, and this second rail movably installs the passageway at this first rail, and this second rail can be relative this first rail displacement, and this helps smooth device movably to install between this first rail and this second rail, its characterized in that:

the sliding assisting device comprises a clamping feature; and

The working piece is arranged on the first rail and comprises a main body part, an elastic part and a preset part, wherein the elastic part is used for supporting the main body part, the preset part is connected with the main body part, and the preset part comprises a hole which is defined by a plurality of hole walls;

When the second rail is displaced towards an opening direction relative to the first rail and is detached from the channel of the first rail, the sliding assisting device extends into the hole of the preset part of the workpiece through the clamping feature so as to prevent the sliding assisting device from being displaced randomly relative to the first rail.

12. The slide rail assembly of claim 11 wherein the first rail includes a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the first rail, the first wall, the second wall, and the longitudinal wall of the first rail together defining the channel.

13. The slide assembly of claim 12 wherein the working member is movably mounted to a longitudinal wall of the first rail.

14. The slide assembly of claim 13 wherein the body portion of the working member is pivotally connected to the longitudinal wall of the first rail.

15. The slide assembly of claim 13 wherein the resilient portion of the working member has a first section and a second section, the first section of the resilient portion of the working member being coupled to the body portion, the second section of the resilient portion of the working member defining a predetermined space therebetween.

16. The slide assembly of claim 15 wherein the predetermined portion of the work piece includes a first guide feature and a second guide feature, the aperture being located between the first guide feature and the second guide feature.

17. The slide assembly of claim 16 wherein the aperture is sized substantially larger than the detent feature.

18. The slide assembly of claim 16 wherein the second rail includes a release feature; when the second rail is reinserted into the channel of the first rail from the outside of the channel of the first rail to a folding direction, the second rail can drive the working piece through one of the first guiding feature and the second guiding feature contacted by the releasing feature, so that the clamping feature of the sliding assisting device is arranged from the hole Jie Che of the preset part of the working piece to allow the sliding assisting device to move from a preset position to the folding direction.

19. The slide rail assembly of claim 12 wherein the slide assist device further comprises a first portion, a second portion, and a longitudinal portion, the longitudinal portion being connected between the first portion and the second portion, the first portion, the second portion, and the longitudinal portion corresponding to the first wall, the second wall, and the longitudinal wall of the first rail, respectively; the first and second parts of the sliding aid are provided with a plurality of balls for supporting the first and second walls of the first rail respectively.

20. The slide assembly of claim 11 wherein the predetermined portion of the work piece is arranged with an extension adjacent the aperture and the detent feature corresponds to the extension when the slide assist device is extended into the aperture of the predetermined portion of the work piece through the detent feature.