TW202415319A - Slide rail assembly - Google Patents

Abstract

A slide rail assembly includes a first rail, a second rail, an aid-sliding device and a working member. The second rail is movably mounted inside a passage of the first rail and is displaceable with respect to the first rail. The aid-sliding device is movably mounted between the first rail and the second rail and includes an engaging feature. The working member is arranged at the first rail. The working member includes a body portion, a resilient portion and a predetermined portion. The resilient portion is configured to support the body portion and the predetermined portion is connected to the body portion. The first rail is arranged with a supporting portion for supporting the resilient portion of the working member. When the aid-sliding device is located at a predetermined position, the aid-sliding device is configured to engage with the predetermined portion of the working member through the engaging feature.

Description

Slide rail assembly

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

For example, US Patent Publication No. US 6,851,773B2 discloses a slide-assisting member positioning structure for 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 provided at the front end of the slide-assisting member; the positioning member is provided 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 clamped to the slot of the slide-assisting member through an elastic hook rod (hook portion) to prevent the slide-assisting member from sliding arbitrarily relative to the first rail, which helps to support or stabilize 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 shaft bearing member positioning device, which includes a bearing rail, a sliding rail and a shaft bearing member. The front end of the bearing rail is provided with a support seat for the sliding rail to slide against, and the support seat is provided with a hook member, which is pivoted 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, and a slot is formed on the support seat, and a spring rod is formed on one side of the slot to have a spring effect, so that the hook member The swing can be restored; the shaft bearing member 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 portion is provided at its front end; accordingly, when the shaft bearing member moves to the support seat, the front end of the shaft bearing member can be pressed by the stop seat and positioned by the convex hook portion being hooked by the hook member.

Although the above patent has disclosed the relevant technical features of the slide-assisting 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.

The present invention provides 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 sliding aid is movably mounted between the first rail and the second rail, and the sliding aid 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, 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 is removed from the channel of the first rail, the sliding aid is in a predetermined position, and the sliding aid can be latched to the predetermined part of the working piece through the latching feature.

Preferably, 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, and the first wall, the second wall and the longitudinal wall of the first rail together define the channel.

Preferably, the work piece is movably mounted on the longitudinal wall of the first rail.

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

Preferably, the elastic part of the workpiece has a first section and a second section, the first section of the elastic part of the workpiece is connected to the main body, and a predetermined space is defined between the second section of the elastic part of the workpiece 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 being defined by a plurality of hole walls, and the hole being used to provide a latching feature of the sliding aid device.

Preferably, the size of the hole 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 can drive the predetermined portion of the workpiece by contacting one of the first guide feature and the second guide feature through the release feature, so that the latch feature of the slide-assisting device is released from the hole of the predetermined portion of the workpiece, so as to allow the slide-assisting device to move from the predetermined position to the folding direction.

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

Preferably, the latch feature of the sliding aid device is a latch 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 sliding aid is movably mounted between the first rail and the second rail, and the sliding aid includes a latch 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 sliding aid extends into the hole of the predetermined part of the working piece through the latch feature to prevent the sliding aid from arbitrarily displacing relative to the first rail.

Preferably, 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, and the first wall, the second wall and the longitudinal wall of the first rail jointly define the channel.

Preferably, the work piece is movably mounted on the longitudinal wall of the first rail.

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

Preferably, the elastic part of the workpiece has a first section and a second section, the first section of the elastic part of the workpiece is connected to the main body, and a predetermined space is defined between the second section of the elastic part of the workpiece 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 hole 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 can drive the predetermined portion of the workpiece by contacting one of the first guide feature and the second guide feature through the release feature, so that the latch feature of the slide-assisting device is released from the hole of the predetermined portion of the workpiece, so as to allow the slide-assisting device to move from a predetermined position to the folding direction.

Preferably, the sliding aid device further comprises a first part, a second part and a longitudinal part connected between the first part and the second part, the first part, the second part and the longitudinal part respectively correspond to the first wall, the second wall and the longitudinal wall of the first track; the first part and the second part 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 track.

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

20: Slide rail assembly

22: First track

22a: Front end

22b: Backend

24: Second track

26: Sliding device

28: Workpiece

30: Third track

32: Channel

34a: First Wall

34b: Second wall

36: Vertical wall

37: Release characteristics

38a: First Wall

38b: Second wall

39a: First guide structure

39b: Second guide structure

40: Vertical wall

42: Clamping features

44a: Part 1

44b: Part 2

46: Longitudinal part

48: Rolling Balls

50: Main body

52: Elastic part

54: Reservation Department

55: Bend section

56: Axis

57: Corresponding space

58: Support part

60a: First paragraph

60b: Second paragraph

62: First Guidance Features

64: Second Guidance Features

66: Hole

68a: First hole wall

68b: Second hole wall

68c: The third hole wall

68d: Fourth hole wall

70:Introduction

72: Extension section

D1: Open direction

D2: Folding direction

E1: First end

E2: Second end

J: Reserve space

K: Reserved location

R: Predetermined rotation direction

S1: First state

S2: Second state

Figure 1 shows a three-dimensional schematic diagram of the slide rail assembly of an embodiment of the present invention;

Figure 2 shows a schematic diagram of the disassembled slide rail assembly of an embodiment of the present invention;

Figure 2A shows a schematic diagram of a working part of the slide rail assembly of an embodiment of the present invention;

Figure 3 shows a schematic diagram of a first rail of the slide rail assembly of an embodiment of the present invention;

FIG4 is a schematic diagram showing a second rail of the slide rail assembly of an embodiment of the present invention displaced in an opening direction relative to the first rail;

Figure 5 is a schematic diagram showing the second rail of the slide rail assembly of the embodiment of the present invention continuing to move toward the opening direction relative to the first rail;

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

FIG7 is a schematic diagram showing that the first rail of the slide rail assembly of 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;

FIG8 is a schematic diagram showing the second rail of the slide rail assembly of the embodiment of the present invention being reinserted into the channel of the first rail in a retracting direction;

FIG9 is a schematic diagram showing the displacement of the second rail of the slide rail assembly of the embodiment of the present invention in the folding direction relative to the first rail;

FIG. 10 is a schematic diagram showing the second rail of the slide rail assembly of the embodiment of the present invention continuously moving toward the folding direction relative to the first rail; and

FIG11 is a schematic diagram showing the second rail of the slide rail assembly of the embodiment of the present invention being further displaced toward the folding direction relative to the first rail.

As shown in FIG. 1 and FIG. 2 , a slide rail assembly 20 of an embodiment of the present invention includes a first rail 22, a second rail 24, a slide assist device 26, and a working piece 28. Preferably, it further includes a third rail 30. 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 (e.g., the outer rail), the first rail 22 (e.g., the middle rail), and the second rail 24 (e.g., the inner rail) can be longitudinally displaced relative to each other. As shown in Figure 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 side 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 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 displaced longitudinally relative to the first rail 22. The second rail 24 includes a first wall 38a, a second wall 38b, and a longitudinal wall 40 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.

The slide-assisting device 26 is movably installed between the first rail 22 and the second rail 24, and the slide-assisting device 26 includes a latch feature 42, such as a latch hook. Preferably, the slide-assisting device 26 further includes a first portion 44a, a second portion 44b, and a longitudinal portion 46 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-assisting device 26 are both arranged with a plurality of balls 48 ( Due to the viewing angle, only the balls 48 on the second part 44b are shown in FIG. 1 and FIG. 2 . The balls 48 on the first part 44a and the balls 48 on the second part 44b are used to support the first wall 34a and the second wall 34b of the first rail 22, respectively, and to support the first wall 38a and the second wall 38b of the second rail 24, respectively. This helps to ensure smoothness when the second rail 24 and the first rail 22 are displaced relative to each other.

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

Preferably, the working piece 28 is movably mounted on the longitudinal wall 36 of the first rail 22. For example, the main body 50 of the working piece 28 is pivoted to the longitudinal wall 36 of the first rail 22 via an axis 56, but the implementation is not limited thereto.

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

Preferably, the longitudinal wall 36 of the first rail 22 is provided with a supporting portion 58 for supporting the elastic portion 52 of the working piece 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 positioned 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 workpiece 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 workpiece 28 is in a first state S1, the main body 50 of the workpiece 28 and the second section 60b of the elastic portion 52 maintain a distance G through the predetermined space J.

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 FIG. 4 , 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 piece 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 piece 28. In addition, the predetermined portion 54 of the working piece 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 slide-assisting 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 slide-assisting device 26 contacts 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 those with ordinary knowledge in this field, it will not be further described here.

As shown in FIG. 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 slide assisting device 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 supporting 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 supporting point to help the working piece 28 pivot from the first state S1 to the second state S2, wherein, during the pivoting of the working piece 28 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 raised at a predetermined angle relative to the second section 60b (or the supporting 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 bent 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 bent section 55 to penetrate, so that the longitudinal wall 36 of the first rail 22 can provide support for the bent section 55, which helps the stability of the working piece 28 when it moves (such as pivoting).

As shown in FIG6 and FIG7, when the second rail 24 is further displaced in the opening direction D1 relative to the first rail 22 and 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 22a 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 aid device 26 is at the predetermined position K, the latch feature 42 of the sliding aid 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 is restored from the second state S2 to the first state S1 (for example, the locked state), and the sliding aid device 26 extends into the predetermined portion 54 of the working piece 28 through the latch feature 42. 4, the latch feature 42 corresponds to the first hole wall 68a (and the extension section 72), and is used to prevent the sliding device 26 from arbitrarily displacing relative to the first rail 22. For example, the first hole wall 68a (and the extension section 72) can block the latch feature 42, and prevent the sliding device 26 from displacing relative to the first rail 22 from the predetermined position K to a folding direction D2 (as shown in FIG. 6).

As shown in FIG8 , 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 part 44a and the balls 48 of the second part 44b of the slide-assisting device 26, respectively, so as to facilitate the stability or smoothness of the second rail 24 when it is inserted into the channel 32 of the first rail 22 in the folding direction D2.

As shown in Figures 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, so that the latch feature 42 of the slide-assisting device 26 is released 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 (e.g., locked state, as shown in FIG. 9) to the second state S2 (e.g., 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 latch feature 42 of the sliding aid 26 is released from the hole 66 of the predetermined portion 54 of the working piece 28.

Preferably, the mutual support between the supporting portion 58 of the longitudinal wall 36 of the first rail 22 and the second section 60b of the elastic portion 52 of the workpiece 28 can be used as a supporting point to help the workpiece 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 workpiece 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 part 52 can approach each other (as shown in FIG. 10 ), and the first section 60a of the elastic part 52 of the working piece 28 is raised at a predetermined angle relative to the second section 60b (or the supporting part 58 of the longitudinal wall 36 of the first rail 22 ), so that the working piece 28 accumulates an elastic force through the elastic part 52.

When the second rail 24 is further displaced toward the folding direction D2 relative to the first rail 22, the slide assisting device 26 responds to the displacement of the second rail 24 and can move from the predetermined position K toward the folding direction D2, and the elastic portion 52 of the working member 28 releases the elastic force, so that the working member 28 can recover 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 FIG9 , 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 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., a 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 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 slide-assisting device 26 can be easily released from the hole 66 of the predetermined portion 54 of the working piece 28, thereby preventing 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) from being too tightly locked and difficult to be released from each other, or the latching feature 42 of the slide-assisting device 26 and the predetermined portion 54 of the working piece 28 from being deformed or damaged when being released from each other due to being too tightly locked.

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 relative to the first rail 22 (for example, pivot), 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 26.

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

Although the present invention has been disclosed by the above preferred embodiments, they are not intended to limit the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of the attached patent application.

22: First track

22a: Front end

24: Second track

26: Sliding device

28: Workpiece

32: Channel

34a: First Wall

34b: Second wall

36: Vertical wall

38a: First Wall

38b: Second wall

42: Clamping features

44a: Part 1

44b: Part 2

46: Longitudinal part

48: Rolling Balls

50: Main body

52: Elastic part

54: Reservation Department

56: Axis

58: Support part

66: Hole

68a: First hole wall

72: Extension section

D1: Open direction

D2: Folding direction

K: Reserved location

S1: First state

Claims (20)

A slide rail assembly, comprising: A first track includes a channel; A second rail is movably mounted in the channel of the first rail, and the second rail can be displaced relative to the first rail; A sliding aid is movably mounted between the first rail and the second rail, and the sliding aid includes a latch feature; and A workpiece is arranged on the first rail, the workpiece comprises 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 provided with a supporting portion for supporting the elastic portion of the workpiece; 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 sliding aid device is in a predetermined position, and the sliding aid device can be latched to a predetermined portion of the workpiece through the latch feature. The slide rail assembly as described in 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, and the first wall, the second wall, and the longitudinal wall of the first rail jointly define the channel. A slide rail assembly as described in claim 2, wherein the working member is movably mounted on the longitudinal wall of the first rail. A slide rail assembly as described in claim 3, wherein the main body of the working member is pivotally connected to the longitudinal wall of the first rail. The slide rail assembly as described in claim 3, wherein 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. The slide rail assembly as described in claim 5, wherein 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 being defined by a plurality of hole walls, and the hole being used to provide a latching feature of the slide-assisting device. A slide rail assembly as claimed in claim 6, wherein the size of the hole is substantially larger than the size of the latch feature. The slide rail assembly as described in claim 6, wherein the second rail includes a release feature; when the second rail is reinserted from the outside of the channel of the first rail to the retracting direction, the second rail can drive the workpiece by contacting one of the first guide feature and the second guide feature through the release feature, so that the latch feature of the slide-assisting device is released from the hole of the predetermined portion of the workpiece, so as to allow the slide-assisting device to move from the predetermined position to the retracting direction. The slide rail assembly as described in claim 2, wherein the slide-assisting device further comprises a first portion, a second portion and a longitudinal portion 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 portion and the second portion of the slide-assisting device are both arranged with a plurality of balls to respectively support the first wall and the second wall of the first rail. The slide rail assembly as described in claim 1, wherein the latch feature of the slide-assisting device is a latch hook. A slide rail assembly, comprising: A first track includes a channel; A second rail is movably mounted in the channel of the first rail, and the second rail can be displaced relative to the first rail; A sliding aid is movably mounted between the first rail and the second rail, and the sliding aid includes a latch feature; and A workpiece is arranged on the first rail, the workpiece 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; 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 sliding aid extends into the hole of the predetermined portion of the working piece through the latch feature to prevent the sliding aid from arbitrarily displacing relative to the first rail. The slide rail assembly as described in 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, and the first wall, the second wall, and the longitudinal wall of the first rail together define the channel. A slide rail assembly as described in claim 12, wherein the working member is movably mounted on the longitudinal wall of the first rail. A slide rail assembly as described in claim 13, wherein the main body of the working member is pivotally connected to the longitudinal wall of the first rail. The slide rail assembly as described in claim 13, wherein 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. A slide rail assembly as described in claim 15, wherein 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. The slide rail assembly of claim 16, wherein the size of the hole is substantially larger than the size of the latch feature. The slide rail assembly as described in claim 16, wherein the second rail includes a release feature; when the second rail is reinserted from the channel of the first rail in a retracting direction from outside the channel of the first rail, the second rail can drive the workpiece by contacting one of the first guide feature and the second guide feature through the release feature, so that the latch feature of the slide-assisting device is released from the hole of the predetermined portion of the workpiece, so as to allow the slide-assisting device to move from a predetermined position to the retracting direction. The slide rail assembly as described in claim 12, wherein the slide-assisting device further comprises a first portion, a second portion and a longitudinal portion 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 portion and the second portion of the slide-assisting device are both arranged with a plurality of balls to respectively support the first wall and the second wall of the first rail. The slide rail assembly as described in claim 11, wherein the predetermined portion of the work piece is arranged with an extension adjacent to the hole, and when the slide assist device extends into the hole of the predetermined portion of the work piece through the latch feature, the latch feature corresponds to the extension segment.

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