Slide rail assembly

Abstract

This invention relates to a slide rail assembly, comprising a first rail, a second rail, a sliding aid device, and a retaining member. The second rail is movably mounted in a channel of the first rail and is displaceable relative to the first rail; the sliding aid device is movably mounted between the first rail and the second rail and includes a locking feature; the retaining member is disposed on the first rail and includes an elastic portion; the elastic portion of the retaining member includes a predetermined feature, and the first rail includes a limiting feature. The limiting feature prevents the elastic portion from deforming under force; when the second rail is displaced relative to the first rail in an opening direction and detached from the channel of the first rail, the sliding aid device is in a predetermined position, and the sliding aid device can be locked onto the predetermined feature of the retaining member by the locking feature.

Description

Technical Field

[0001] This invention relates to a slide rail assembly that is reliable in use. Background Technology

[0002] For example, US Patent Publication No. 6,851,773B2 discloses a sliding aid positioning structure for a drawer slide, which includes a first rail, a second rail, a sliding aid, and a positioning member. The sliding aid is movably installed between the first rail and the second rail, and a slot is provided at the front end of the sliding aid; the positioning member is disposed at the passage opening of the first rail. When the second rail is displaced relative to the first rail in an opening direction and removed from the passage of the first rail, the positioning member can be engaged with the slot of the sliding aid through a flexible hook (hook portion) to prevent the sliding aid from sliding arbitrarily relative to the first rail, thus contributing to the support or stability of the second rail as it re-inserts into the passage of the first rail.

[0003] Although the aforementioned patents have revealed the relevant technical features of the positioning structure of the sliding aid, with the different market demands, how to develop a different sliding rail product that helps improve reliability has become an issue that cannot be ignored. Summary of the Invention

[0004] The purpose of this invention is to provide a reliable slide rail assembly.

[0005] According to one aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a sliding aid device, and a retaining member. The first rail includes a channel; the second rail is movably mounted in the channel of the first rail and is longitudinally displaceable relative to the first rail; the sliding aid device is movably mounted between the first rail and the second rail and includes a locking feature; the retaining member is arranged on the first rail and includes an elastic portion; wherein the elastic portion of the retaining member includes a predetermined feature, the first rail includes a limiting feature, and the limiting feature is used to prevent the elastic portion from moving laterally; wherein when the second rail is displaced relative to the first rail in an opening direction and detached from the channel of the first rail, the sliding aid device is in a predetermined position, and the sliding aid device can be locked onto the predetermined feature of the elastic portion of the retaining member by the locking feature.

[0006] Preferably, one of the predetermined feature and the limiting feature forms a space, and the other of the predetermined feature and the limiting feature forms a protrusion; the protrusion is used to extend into the space.

[0007] Preferably, the space is a hole, and the hole is defined by a plurality of hole walls.

[0008] Preferably, the first track includes a first wall, a second wall, and a longitudinal wall, the longitudinal wall connecting the first wall and the second wall of the first track, the first wall, the second wall, and the longitudinal wall of the first track together defining the channel; the retainer also includes a main body connected to the longitudinal wall of the first track, the elastic part having a first end section and a second end section, the first end section of the elastic part being connected to the main body, and the predetermined feature being arranged on the second end section of the elastic part.

[0009] Preferably, the second end segment of the elastic portion includes a first guiding feature and a second guiding feature; the predetermined feature is arranged between the first guiding feature and the second guiding feature.

[0010] Preferably, the main body of the retainer has a support section for supporting the elastic part.

[0011] Preferably, the size of the predetermined feature is substantially larger than the size of the latch feature.

[0012] 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 retracting direction, the second rail can drive the elastic portion of the retainer through the release feature, causing the locking feature of the sliding device to disengage from a predetermined feature of the elastic portion of the retainer, thereby allowing the sliding device to move from the predetermined position in the retracting direction.

[0013] Preferably, the sliding aid device further includes a first part, a second part, and a longitudinal part, the longitudinal part being connected between the first part and the second part, the first part, the second part, and the longitudinal part respectively corresponding to the first wall, the second wall, and the longitudinal wall of the first rail; the first part and the second part of the sliding aid device are each equipped with a plurality of ball bearings for supporting the first wall and the second wall of the first rail respectively.

[0014] Preferably, the locking feature of the sliding aid device is a hook.

[0015] According to another aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a sliding aid device, and a retaining member. The first rail includes a first wall, a second wall, and a longitudinal wall, the longitudinal wall connecting the first wall and the second wall of the first rail, the first wall, the second wall, and the longitudinal wall collectively defining a channel; the second rail is movably mounted in the channel of the first rail and is longitudinally displaceable relative to the first rail; the sliding aid device is movably mounted between the first rail and the second rail, and includes a locking feature; the retaining member is arranged in the longitudinal wall of the first rail, and includes an elastic portion; wherein the elastic portion of the retaining member includes a space, and the longitudinal wall of the first rail includes a protrusion for extending into the space; wherein, when the second rail is displaced relative to the first rail in an opening direction and detached from the channel of the first rail, the sliding aid device extends through the locking feature into the space of the elastic portion of the retaining member to prevent arbitrary displacement of the sliding aid device relative to the first rail.

[0016] Preferably, the space is a hole, and the hole is defined by a plurality of hole walls.

[0017] Preferably, the retainer further includes a main body portion connected to a longitudinal wall of the first rail, the elastic portion having a first end section and a second end section, the first end section of the elastic portion being connected to the main body portion, and the space being arranged in the second end section of the elastic portion.

[0018] Preferably, the second end segment of the elastic portion includes a first guiding feature and a second guiding feature; the space is arranged between the first guiding feature and the second guiding feature.

[0019] Preferably, the main body of the retainer has a support section for supporting the elastic part.

[0020] Preferably, the size of the space is substantially larger than the size of the latch feature.

[0021] 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 retracting direction, the second rail can drive the elastic part of the retainer through the release feature, causing the locking feature of the sliding aid device to release from the space of the elastic part of the retainer, so as to allow the sliding aid device to move from a predetermined position in the retracting direction.

[0022] Preferably, the sliding aid device further includes a first part, a second part, and a longitudinal part, the longitudinal part being connected between the first part and the second part, the first part, the second part, and the longitudinal part respectively corresponding to the first wall, the second wall, and the longitudinal wall of the first rail; the first part and the second part of the sliding aid device are each equipped with a plurality of ball bearings for supporting the first wall and the second wall of the first rail respectively.

[0023] Preferably, the locking feature of the sliding aid device is a hook.

[0024] Preferably, the elastic portion of the retainer is provided with an extension adjacent to the space, and when the sliding device extends into the space of the elastic portion of the retainer through the locking feature, the locking feature corresponds to the extension. Attached Figure Description

[0025] To further illustrate and demonstrate the above-mentioned objectives, structural features, and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0026] Figure 1 This diagram shows a three-dimensional assembly of the slide rail assembly according to an embodiment of the present invention.

[0027] Figure 2 This diagram shows an exploded view of the slide rail assembly according to an embodiment of the present invention.

[0028] Figure 2A A schematic diagram showing a retainer of a slide rail assembly according to an embodiment of the present invention.

[0029] Figure 3 This diagram shows a first rail of a slide rail assembly according to an embodiment of the present invention.

[0030] Figure 4 This diagram shows a slide rail assembly according to an embodiment of the present invention, in which a second rail is displaced relative to the first rail in an opening direction.

[0031] Figure 5 This diagram shows a slide rail assembly according to an embodiment of the present invention, in which the second rail continues to move relative to the first rail in the opening direction.

[0032] Figure 6 A schematic diagram showing the second rail of the slide rail assembly according to an embodiment of the present invention being further displaced relative to the first rail in the opening direction.

[0033] Figure 7 This diagram shows a slide rail assembly according to an embodiment of the present invention, in which the first rail is in an extended position relative to a third rail, and the second rail is removed relative to the first rail in the opening direction.

[0034] Figure 8 A schematic diagram showing the channel through which the second rail of the slide rail assembly of an embodiment of the present invention is reinserted into the first rail in a retracting direction.

[0035] Figure 9 A schematic diagram showing the displacement of the second rail relative to the first rail in the retraction direction of the slide rail assembly according to an embodiment of the present invention.

[0036] Figure 10This diagram shows a slide rail assembly according to an embodiment of the present invention, in which the second rail continues to move relative to the first rail in the retraction direction.

[0037] Figure 11 A schematic diagram showing the second rail of the slide rail assembly according to an embodiment of the present invention being further displaced relative to the first rail in the retraction direction. Detailed Implementation

[0038] like Figure 1 and Figure 2 As shown, a slide rail assembly 20 according to an embodiment of the present invention includes a first rail 22, a second rail 24, a sliding aid device 26, and a retaining member 28. Preferably, it also includes a third rail 30. The first rail 22 is movably mounted 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. Figure 1 In this diagram, 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).

[0039] The first track 22 includes a channel 32. Preferably, the first track 22 includes a first wall 34a, a second wall 34b, and a longitudinal wall 36, the longitudinal wall 36 connecting the first wall 34a and the second wall 34b of the first track 22, the first wall 34a, the second wall 34b, and the longitudinal wall 36 of the first track 22 together define the channel 32. The first track 22 has a front end 22a and a rear end 22b.

[0040] The second rail 24 is movably installed in the channel 32 of the first rail 22, and the second rail 24 is longitudinally displaceable relative to the first rail 22. The second rail 24 includes a first wall 38a, a second wall 38b, and a longitudinal wall 40, the longitudinal wall 40 connecting 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 inclined surfaces or curved surfaces, but are not limited in implementation.

[0041] The sliding aid device 26 is movably mounted between the first rail 22 and the second rail 24, and the sliding aid device 26 includes a locking feature 42, such as a hook. Preferably, the sliding aid device 26 further includes a first part 44a, a second part 44b, and a longitudinal part 46, the longitudinal part 46 connecting the first part 44a and the second part 44b, and the first part 44a, the second part 44b, and the longitudinal part 46 respectively corresponding to the first wall 34a, the second wall 34b, and the longitudinal wall 36 of the first rail 22; the first part 44a and the second part 44b of the sliding aid device 26 are each arranged with a plurality of ball bearings 48 (due to the viewing angle, Figure 1 and Figure 2 The diagram only shows the balls 48 on the second part 44b. 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, and the first wall 38a and the second wall 38b of the second rail 24, respectively. This helps to improve the smoothness of the displacement of the second rail 24 and the first rail 22 relative to each other.

[0042] The retainer 28 is arranged on the longitudinal wall 36 of the first rail 22, and the retainer 28 is adjacent to the front end 22a of the first rail 22. The retainer 38 includes an elastic portion 50 (this portion can be referred to in conjunction with the following). Figure 2 , Figure 2A , Figure 3 and Figure 4 The elastic portion 50 is, for example, an elastic arm, but is not limited in implementation. The elastic portion 50 of the retainer 28 includes a predetermined feature 52; the longitudinal wall 36 of the first rail 22 includes a limiting feature 54.

[0043] Preferably, one of the predetermined feature 52 and the limiting feature 54 forms a space, and the other of the predetermined feature 52 and the limiting feature 54 forms a protrusion; the protrusion is used to extend into the space (e.g., Figure 3 and Figure 4 (As shown). Here, the predetermined feature 52 is taken as a space, and the limiting feature 54 is a protrusion extending into the space as an example, but the implementation is not limited. Preferably, the space is a hole, and the hole is defined by a plurality of hole walls. For example, the elastic part 50 includes a first hole wall 56a, a second hole wall 56b, a third hole wall 56c, and a fourth hole wall 56d. These hole walls 56a, 56b, 56c, and 56d together define an outline with a predetermined shape.

[0044] Preferably, the retainer 28 further includes a main body 58 connected (e.g., fixed) to the longitudinal wall 36 of the first rail 22, the elastic part 50 having a first end section 60 and a second end section 62, the first end section 60 of the elastic part 50 being connected to the main body 58, the second end section 62 extending from the first end section 60 and being elastically movable relative to the first end section 60, wherein the predetermined feature 52 is arranged in the second end section 62 of the elastic part 50.

[0045] Preferably, the second end segment 62 of the elastic portion 50 includes a first guiding feature 64 and a second guiding feature 66; the predetermined feature 52 is arranged between the first guiding feature 64 and the second guiding feature 66. The first guiding feature 64 and the second guiding feature 66 are inclined surfaces or curved surfaces.

[0046] Preferably, the main body 58 of the retainer 28 has a support section 68, which supports the elastic part 50. Here, we take an example where the support section 68 is bent relative to the main body 58 and supports the bottom of the elastic part 50. The support section 68 supports the elastic part 50, contributing to its stability during movement. The main body 58, the elastic part 50, and the support section 68 can be integrated into a single unit, making the retainer 28 a single component (e.g., Figure 2A (As shown).

[0047] like Figure 4 As shown, the locking feature 42 of the sliding device 26 has a guide section 70, which is a slope or an arc surface. On the other hand, the elastic portion 50 of the retainer 28 is in a first state S1. Furthermore, the elastic portion 50 of the retainer 28 is arranged with an extension 72 adjacent to the predetermined feature 52, for example, the extension 72 extends from the first hole wall 56a toward the second wall 34b of the first rail 22.

[0048] When the second rail 24 moves relative to the first rail 22 from a closed position to an opening direction D1 to a predetermined stroke, the release feature 37, through the contact between the first guide structure 39a and the first guide feature 64, allows the release feature 37 to easily pass over the elastic part 50, and the sliding device 26 responds to the displacement of the second rail 24 by moving in the opening direction D1. During this process, the locking feature 42 (guide section 70) of the sliding device 26 will contact the first guide feature 64 of the elastic part 50 of the retainer 28. Since this part is within the technical scope that can be understood by those skilled in the art, it will not be described in detail here.

[0049] It is worth mentioning that if the displacement speed of the second rail 24 in the opening direction D1 is too fast, causing the release feature 37 (first guide structure 39a) or the locking feature 42 (guide section 70) of the sliding device 26 to contact the second end section 62 (first guide feature 64) of the elastic part 50 with excessive instantaneous force, the limiting feature 54 can prevent the second end section 62 of the elastic part 50 from deforming or warping in a specific direction or angle. Specifically, the extension section 72 can increase the area of ​​the first hole wall 56a corresponding to the limiting feature 54, helping to prevent the second end section 62 (first guide feature 64) of the elastic part 50 from deforming due to force. Alternatively, the limiting feature 54 can block the fourth hole wall 56d, thereby preventing the second end section 62 of the elastic part 50 from moving or deforming in a lateral direction T due to unexpected force. This lateral direction T (e.g., the aforementioned Y-axis direction, or the lateral direction of the first rail 22, such as...) Figure 4 (As shown).

[0050] like Figure 5 As shown, when the second rail 24 continues to move in the opening direction D1 relative to the first rail 22, a force is generated through the mutual contact between the locking feature 42 (guide section 70) of the sliding device 26 and the first guide feature 64 of the elastic part 50 of the retainer 28, causing the elastic part 50 of the retainer 28 to move from the first state S1 to a second state S2. At this time, the elastic part 50 accumulates an elastic force.

[0051] like Figure 6 and Figure 7 As shown, when the second rail 24 is further displaced relative to the first rail 22 in the opening direction D1 and is unloaded from the channel 32 of the first rail 22 (e.g. Figure 7 As shown), 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 engaged with the predetermined feature 52 of the elastic portion 50 of the retainer 28 via the locking feature 42 (as shown). Figure 6 (As shown).

[0052] Specifically, when the sliding aid 26 is in the predetermined position K, the locking feature 42 of the sliding aid 26 corresponds to the predetermined feature 52 of the elastic part 50, and the elastic part 50 releases the elastic force, causing the elastic part 50 to return from the second state S2 to the first state S1 (e.g., locked state). The sliding aid 26 extends into the predetermined feature 52 of the elastic part 50 of the retainer 28 through the locking feature 42. The locking feature 42 corresponds to the first hole wall 56a to prevent the sliding aid 26 from arbitrarily displacing relative to the first rail 22. For example, the first hole wall 56a (and the extension 72) can block the locking feature 42 to prevent the sliding aid 26 from displacing relative to the first rail 22 from the predetermined position K in a retraction direction D2 (e.g., ...). Figure 6 (As shown). When the sliding device 26 is in the predetermined position K, and the locking feature 42 is engaged with the predetermined feature 52 of the elastic portion 50 of the retainer 28, the locking feature 42 and the limiting feature 54 are laterally (or sideways) offset from each other without interfering with each other.

[0053] like Figure 8 As shown, the sliding aid 26 is in the predetermined position K, and the elastic portion 50 of the retainer 28 is in the first state S1 (e.g., locked state), which can be used to lock the locking feature 42 of the sliding aid 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 retraction direction D2, the first wall 38a and the second wall 38b of the second rail 24 can be pre-supported by the ball bearings 48 of the first part 44a and the second part 44b of the sliding aid 26, respectively, which helps to improve the stability or smoothness of the second rail 24 when it is inserted into the channel 32 of the first rail 22 in the retraction direction D2.

[0054] like Figure 9 , Figure 10 and Figure 11 As shown, when the second rail 24 continues to be inserted into the channel 32 of the first rail 22 in the retraction direction D2, the second rail 24 can drive the elastic part 50 of the retainer 28 through the release feature 37, so that the locking feature 42 of the sliding device 26 is released from the predetermined feature 52 of the elastic part 50 of the retainer 28, so as to allow the sliding device 26 to move from the predetermined position K to the retraction direction D2.

[0055] Specifically, as the second rail 24 continues to be inserted into the channel 32 of the first rail 22 in the retracting direction D2, the release feature 37 (second guide structure 39b) of the second rail 24 will contact the elastic part 50 (second guide feature 66) of the retainer 28 and generate another force, causing the elastic part 50 of the retainer 28 to move from the first state S1 (e.g., locked state, such as...) Figure 9 As shown) the activity is moved to the second state S2 (e.g., the unlocked state, such as...). Figure 10 As shown), the locking feature 42 of the sliding aid 26 is released from the predetermined feature 52 of the elastic portion 50 of the retainer 28. At this time, the elastic portion 50 accumulates a spring force. When the second rail 24 further displaces relative to the first rail 22 in the retraction direction D2, the sliding aid 26 responds to the displacement of the second rail 24 and can move from the predetermined position K in the retraction direction D2, and the elastic portion 50 releases the spring force from the second state S2 (as shown). Figure 10 As shown) Restored to the first state S1 (as shown) Figure 11 (As shown).

[0056] It is worth mentioning that, such as Figure 9 As shown, the size of the predetermined feature 52 is substantially larger than the size of the latching feature 42. Specifically, the longitudinal dimension of the predetermined feature 52 (e.g., the hole) is substantially larger than (or slightly larger than) the longitudinal dimension of the latching feature 42 (e.g., the hook), so that the predetermined feature 52 has a predetermined looseness when accommodating the latching feature 42. According to this configuration, when the second rail 24 is inserted into the channel 32 of the first rail 22 in the retraction direction D2, and the second rail 24 drives the elastic part 50 of the retainer 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 locking feature 42 of the sliding device 26 can be easily released from the predetermined feature 52 of the elastic part 50 of the retainer 28. Therefore, it avoids the problem that the locking feature 42 and the predetermined feature 52 are locked too tightly and difficult to release each other, or that the locking feature 42 and the second end section 62 of the elastic part 50 may be deformed or damaged when they are locked too tightly and released.

[0057] Based on the above description, it can be seen that the slide rail assembly 20 of the present invention includes the following features:

[0058] a. The limiting feature 54 on the first rail 22 can prevent the elastic part 50 from deforming due to force, which helps to improve the reliability of the slide rail assembly 20 in use.

[0059] b. The size of the predetermined feature 52 is substantially larger than the size of the latching feature 42.

[0060] c. The main body 58, the elastic part 50 and the support section 68 can be integrated into one unit, so that the retaining member 28 becomes a single component.

[0061] Although the present invention has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are merely illustrative of the invention, and various equivalent changes and modifications can be made without departing from the spirit of the invention. Therefore, any changes or modifications to the above embodiments within the scope of the essential spirit of the invention will fall within the scope of the claims of this application.

Claims

1. A slide rail assembly, comprising a first rail, a second rail, a sliding aid device, and a retaining member, wherein, The first rail includes a channel, and the second rail is movably mounted in the channel of the first rail, and the second rail is longitudinally displaceable relative to the first rail; characterized in that: The sliding aid device is movably installed between the first rail and the second rail, and the sliding aid device includes a locking feature; and The retainer is arranged on the first rail, and the retainer includes an elastic portion; The elastic portion of the retainer includes a predetermined feature, the first rail includes a limiting feature, and the limiting feature is used to prevent the elastic portion from moving laterally. When the second rail is displaced relative to the first rail in an opening direction and is removed from the channel of the first rail, the sliding device is in a predetermined position, and the sliding device can be locked to the predetermined feature of the elastic part of the retaining member through the locking feature. The retainer has a predetermined feature of an elastic portion, which is a hole defined by a plurality of hole walls, and the first track has a limiting feature of a protrusion that extends into the hole.

2. The slide rail assembly according to claim 1, characterized in that, The first track includes a first wall, a second wall, and a longitudinal wall, the longitudinal wall being connected between the first wall and the second wall of the first track, the first wall, the second wall, and the longitudinal wall of the first track together defining the channel; the retainer also includes a main body portion connected to the longitudinal wall of the first track, the elastic portion having a first end section and a second end section, the first end section of the elastic portion being connected to the main body portion, and the predetermined feature being arranged on the second end section of the elastic portion.

3. The slide rail assembly according to claim 2, characterized in that, The second end segment of the elastic portion includes a first guiding feature and a second guiding feature; the predetermined feature is arranged between the first guiding feature and the second guiding feature.

4. The slide rail assembly according to claim 2, characterized in that, The main body of the retainer has a support section for supporting the elastic part.

5. The slide rail assembly according to claim 1, characterized in that, The size of the predetermined feature is substantially larger than the size of the latch feature.

6. The slide rail assembly according to claim 1, characterized in that, 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 retracting direction, the second rail can drive the elastic part of the retainer through the release feature, causing the locking feature of the sliding device to release from the predetermined feature of the elastic part of the retainer, so as to allow the sliding device to move from the predetermined position in the retracting direction.

7. The slide rail assembly according to claim 2, characterized in that, The sliding aid device further includes a first part, a second part, and a longitudinal part, the longitudinal part being connected between the first part and the second part. 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 rail, respectively. The first part and the second part of the sliding aid device are each arranged with a plurality of ball bearings to support the first wall and the second wall of the first rail, respectively.

8. The slide rail assembly according to claim 1, characterized in that, The locking feature of the sliding aid device is a hook.

9. A slide rail assembly, comprising a first rail, a second rail, a sliding aid device, and a retaining member, wherein, The first track includes a first wall, a second wall, and a longitudinal wall, the longitudinal wall connecting the first wall and the second wall of the first track. The first wall, the second wall, and the longitudinal wall together define a channel. The second track is movably installed in the channel of the first track and can be longitudinally displaced relative to the first track; characterized in that: The sliding aid device is movably installed between the first rail and the second rail, and the sliding aid device includes a locking feature; and The retainer is arranged on the longitudinal wall of the first rail, and the retainer includes an elastic portion; The retainer has an elastic portion that includes a hole defined by a plurality of hole walls, and the longitudinal wall of the first rail includes a protrusion that extends into the hole. When the second rail is displaced relative to the first rail in an opening direction and is removed from the channel of the first rail, the sliding aid device extends into the hole of the elastic part of the retainer through the locking feature to prevent the sliding aid device from arbitrarily displacing relative to the first rail.

10. The slide rail assembly according to claim 9, characterized in that, The retainer further includes a main body portion connected to a longitudinal wall of the first rail, the elastic portion having a first end section and a second end section, the first end section of the elastic portion being connected to the main body portion, and the hole being arranged in the second end section of the elastic portion.

11. The slide rail assembly according to claim 10, characterized in that, The second end segment of the elastic portion includes a first guiding feature and a second guiding feature; the hole is arranged between the first guiding feature and the second guiding feature.

12. The slide rail assembly according to claim 10, characterized in that, The main body of the retainer has a support section for supporting the elastic part.

13. The slide rail assembly according to claim 9, characterized in that, The size of the hole is substantially larger than the size of the latching feature.

14. The slide rail assembly according to claim 9, characterized in that, 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 retracting direction, the second rail can drive the elastic part of the retainer through the release feature, causing the locking feature of the sliding device to disengage from the hole of the elastic part of the retainer, thereby allowing the sliding device to move from a predetermined position in the retracting direction.

15. The slide rail assembly according to claim 10, characterized in that, The sliding aid device further includes a first part, a second part, and a longitudinal part, the longitudinal part being connected between the first part and the second part. 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 rail, respectively. The first part and the second part of the sliding aid device are each arranged with a plurality of ball bearings to support the first wall and the second wall of the first rail, respectively.

16. The slide rail assembly according to claim 9, characterized in that, The locking feature of the sliding aid device is a hook.

17. The slide rail assembly according to claim 9, characterized in that, The elastic portion of the retainer is provided with an extension adjacent to the hole, and when the sliding device extends into the hole of the elastic portion of the retainer through the locking feature, the locking feature corresponds to the extension.

Images