Slide Rail Assembly

Abstract

To provide a slide rail assembly that cam improve the reliability of a slide support device.SOLUTION: A slide rail assembly includes a first rail, a second rail, and a slide support device. The slide support device is movably attached between the first rail and the second rail. One of the first rail and the slide support device includes an elastic member having a first engagement part. The other of the first rail and the slide support device includes a second engagement part. The first engagement part and the second engagement part are configured to engage with each other to prevent movement of the slide support device from a predefined position. The second rail includes at least one auxiliary part configured to release the engagement between the first engagement part and the second engagement part.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a slide rail mechanism, and more particularly to a slide rail assembly that can improve the reliability of a sliding assist device between two slide rails. [Background technology]

[0002] Patent Document 1 discloses a track device for a drawer. The track device includes a first track, a second track, a sliding attachment member, a holding member, and a latch release member. The sliding attachment member is movably mounted between the first track and the second track. The holding member is disposed on the first track. The latch release member is disposed on the second track. When the second track is removed from the first track and reinserted into the first track, the second track can abut against the hook portion of the holding member via the inclined surface at the rear end of the latch release member, thereby elastically moving the elastic hook rod of the holding member to release the engagement between the hook portion of the elastic hook rod and the hook of the sliding attachment member.

[0003] However, it is important to develop a variety of slide rail products for different market requirements. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] U.S. Patent No. 6,851,773 Summary of the Invention

[0005] The present invention provides a slide rail assembly that can improve the reliability of the sliding assist device between two slide rails.

[0006] According to one embodiment of the present invention, a slide rail assembly includes a first rail, a second rail, and a sliding assist device. The first rail has a passage formed therein. The second rail is longitudinally movable relative to the first rail. The sliding assist device is movably mounted between the first rail and the second rail. One of the first rail and the sliding assist device includes a resilient member having a first engagement portion, and the other of the first rail and the sliding assist device includes a second engagement portion. The first engagement portion and the second engagement portion are configured to engage with each other to prevent the sliding assist device from moving along a retraction direction from a first predetermined position. The second rail includes an auxiliary portion and a drive portion. When the second rail, removed from the passage of the first rail, is reinserted into the passage of the first rail along the retraction direction, the second rail is configured to contact the resilient member via the auxiliary portion to move the resilient member and switch from the first state to the second state, thereby disengaging the second engagement portion from the first engagement portion. When the second rail is moved further along the retraction direction, the drive portion is configured to contact a predetermined portion of the sliding assist device to drive the sliding assist device away from the first predetermined position along the retraction direction.

[0007] According to another embodiment of the present invention, a slide rail assembly includes a first rail, a second rail, and a sliding assist device. The first rail has a passage formed therein. The sliding assist device is positioned within the passage of the first rail. One of the first rail and the sliding assist device includes a resilient member having a first engagement portion, and the other of the first rail and the sliding assist device includes a second engagement portion. The first engagement portion and the second engagement portion are configured to engage with each other to prevent the sliding assist device from moving along a retraction direction from a first predetermined position. The second rail includes an auxiliary portion and a drive portion. When the second rail is inserted into the passage of the first rail from outside the passage of the first rail along the retraction direction, the second rail is configured to contact the resilient member via the auxiliary portion to move the resilient member and switch from the first state to the second state, thereby disengaging the first engagement portion from the second engagement portion. As the second rail is further moved along the retraction direction, the drive portion is configured to contact a predetermined portion of the sliding assist device to drive the sliding assist device away from the first predetermined position along the retraction direction. The slide rail assembly further includes a third rail, and the first rail is movably mounted between the third rail and the second rail. The slide rail assembly further includes an acting member disposed on the first rail, and a predetermined structure is disposed on the second rail. During the process of moving the second rail along the opening direction from the retracted position relative to the first rail, the acting member and the predetermined structure are configured to engage with each other such that the first rail is configured to move along the opening direction synchronously with the second rail relative to the third rail.

[0008] These and other objects of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing a slide rail assembly according to one embodiment of the present invention. [Figure 2]FIG. 2 is an exploded view of a slide rail assembly including a first rail, a second rail, and a third rail according to an embodiment of the present invention. [Figure 3] FIG. 3 is a diagram showing a sliding assist device in a first predetermined position engaging with a first rail according to an embodiment of the present invention. [Figure 4] FIG. 4 illustrates an embodiment of the invention in which the first rail is in an open position relative to the third rail and the second rail is removed from the path of the first rail. [Figure 5] FIG. 5 illustrates an embodiment of the invention in which the first rail is in an open position relative to the third rail and the second rail is inserted into the passage of the first rail along a retracted direction. [Figure 6] FIG. 6 illustrates another perspective of an embodiment of the invention, with the first rail in an open position relative to the third rail and the second rail inserted into the passage of the first rail along a retraction direction. [Figure 7] FIG. 7 illustrates a slide rail assembly in a retracted position according to an embodiment of the present invention. [Figure 8] FIG. 8 illustrates a second rail and a first rail configured to move synchronously relative to a third rail along an opening direction according to an embodiment of the invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] As shown in FIGS. 1 and 2 , a slide rail assembly 20 according to an embodiment of the present invention includes a first rail 22, a second rail 24, and a sliding assist device 26. Preferably, the slide rail assembly 20 further includes a third rail 28. The first rail 22 (e.g., a middle rail) is movably mounted between the third rail 28 (e.g., an outer rail) and the second rail 24 (e.g., an inner rail). The first rail 22, the second rail 24, and the third rail 28 are longitudinally movable relative to one another. In this embodiment, the X-axis is the longitudinal direction (or the length or movement direction of the slide rail), the Y-axis is the lateral direction (the lateral direction of the slide rail), and the Z-axis is the vertical direction (or the height direction of the slide rail).

[0011] The third rail 28 has a first end 28a and a second end 28b, such as a front end and a rear end, that are opposite each other, but the present invention is not limited thereto. The third rail 28 includes a first wall 30a, a second wall 30b, and a longitudinal wall 32 connected between the first wall 30a and the second wall 30b of the third rail 28. An auxiliary passage is defined by the first wall 30a, the second wall 30b, and the longitudinal wall 32 of the third rail 28 and configured to accommodate the first rail 22. The inside of each of the first wall 30a and the second wall 30b of the third rail 28 is provided with a ball rolling bar configured to support the first rail 22 to improve sliding smoothness.

[0012] The first rail 22 has a first end 22a and a second end 22b that are opposed to each other, such as a front end and a rear end, but the invention is not limited thereto. 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. A passage 37 is defined by the first wall 34a, the second wall 34b, and the longitudinal wall 36 of the first rail 22 and configured to accommodate the second rail 24.

[0013] The second rail 24 has opposed first and second ends 24a, 24b, such as a front end and a rear end, but the invention is not limited thereto. The second rail 24 includes a first wall 38a, a second wall 38b, and a longitudinal wall 40 connected between the first wall 34a and the second wall 34b of the second rail 24.

[0014] The sliding assist device 26 is movably mounted between the first rail 22 and the second rail 24. Specifically, the passage 37 of the first rail 22 is configured to accommodate the sliding assist device 26 and the second rail 24. The sliding assist device 26 preferably includes a plurality of rolling members 44 (such as balls) configured to provide support between the first rail 22 and the second rail 24 to improve the smoothness of relative movement between the first rail 22 and the second rail 24. The sliding assist device 26 includes a first side portion 46 a, a second side portion 46 b, and a longitudinal portion 48 connected between the first side portion 46 a and the second side portion 46 b. A plurality of rolling members 44 are disposed on each of the first side portion 46 a and the second side portion 46 b.

[0015] As shown in FIGS. 2 and 3 , one of the first rail 22 and the sliding assist device 26 includes an elastic member 50. In this embodiment, the elastic member 50 is connected to the first rail 22 (the longitudinal wall 36 of the first rail 22), and the elastic member 50 has a first engagement portion 52. Furthermore, the elastic member 50 further includes an engagement structure 33 adjacent to the first engagement portion 52, with a predetermined gap defined between the first engagement portion 52 and the engagement structure 33. The first engagement portion 52 and the engagement structure 33 include a first guide section 54 and a second guide section 56, respectively, spaced apart from each other (as shown in FIG. 3 ). The first guide section 54 and the second guide section 56 each have an arcuate surface or an inclined surface, although the present invention is not limited thereto.

[0016] Resilient member 50 preferably includes a connecting portion 58 and a resilient portion 60. Connecting portion 58 is connected (e.g., fixedly connected) to first rail 22 (longitudinal wall 36 of first rail 22), and resilient portion 60 extends from connecting portion 58.

[0017] The first engagement portion 52 and the engagement structure 33 are preferably disposed on the elastic portion 60 of the elastic member 50. Both the first engagement portion 52 and the engagement structure 33 are protrusions, but the present invention is not limited thereto.

[0018] The other of the first rail 22 and the sliding assist device 26 includes a second engagement portion 62. In this embodiment, the sliding assist device 26 includes the second engagement portion 62. The first engagement portion 52 and the second engagement portion 62 are configured to engage with each other (as shown in FIG. 3 ) to prevent the sliding assist device 26 from moving along the retraction direction D1 from the first predetermined position K1 relative to the first rail 22.

[0019] When the sliding assist device 26 is located at the first predetermined position K1, the sliding assist device 26 is preferably adjacent to the first end 22a of the first rail 22.

[0020] When the sliding assist device 26 is located at the first predetermined position K1, it is preferable that the second engagement portion 62 is engaged between the first engagement portion 52 and the engagement structure 33 (as shown in FIG. 3) so as to prevent the sliding assist device 26 from moving along the retraction direction D1 or the opening direction D2 from the first predetermined position K1 relative to the first rail 22.

[0021] A first working space M1 and a second working space M2 are formed in the sliding assist device 26, and the second engagement portion 62 is preferably located between the first working space M1 and the second working space M2. When the sliding assist device 26 is located at the first predetermined position K1, the first working space M1 and the second working space M2 correspond to the first engagement portion 52 and the engagement structure 33, respectively.

[0022] The sliding assist device 26 preferably further includes a predetermined portion 67, which is a curved section or a protruding section, although the present invention is not limited thereto.

[0023] The second rail 24 includes an auxiliary portion 64 and a drive portion 66 (as shown in FIG. 2), and the auxiliary portion 64 and the drive portion 66 are spaced apart from each other by a predetermined longitudinal distance along the longitudinal direction. The auxiliary portion 64 is closer to the first end 24a of the second rail 24 than the drive portion 66. That is, the drive portion 66 is farther from the first end 24a of the second rail 24.

[0024] The auxiliary portion 64 has a first guide portion 68a and a second guide portion 68b opposite each other, and it is preferable that each of the first guide portion 68a and the second guide portion 68b has an arcuate surface or an inclined surface, but the present invention is not limited thereto.

[0025] Preferably, both the auxiliary portion 64 and the driving portion 66 are convex portions, but the present invention is not limited to this.

[0026] 4, first rail 22 is positioned in an open position J relative to third rail 28. First rail 22 is preferably configured to be held in open position J via a positioning mechanism. Additionally, second rail 24 is removable from passage 37 of first rail 22 along opening direction D2 such that second rail 24 can be positioned outside passage 37 of first rail 22. Such configurations are well known to those skilled in the art and will not be described further for the sake of brevity.

[0027] Furthermore, when the second rail 24 is removed from the passage 37 of the first rail 22 along the opening direction D2, the sliding assist device 26 moves to a first predetermined position K1 along the opening direction D2 relative to the first rail 22, and the second engagement portion 62 of the sliding assist device 26 is configured to engage between the first engagement portion 52 and the engagement structure 33. The first engagement portion 52 and the second engagement portion 62 are configured to engage with each other to prevent the sliding assist device 26 from moving from the first predetermined position K1 along the retraction direction D1.

[0028] As shown in Figures 4 and 5, when the second rail 24, which has been removed from the passage 37 of the first rail 22, is reinserted into the passage 37 of the first rail 22 along the retraction direction D1, the second rail 24 is configured to move (or deflect) the elastic member 50 (the elastic portion 60 of the elastic member 50) along the predetermined direction L to switch from the first state S1 (the engaged state shown in Figure 4) to the second state S2 (the disengaged state shown in Figure 5), and to abut (press) against the elastic member 50 (the engagement structure 33 of the elastic member 50) via one of the auxiliary portion 64 or the drive portion 66 (such as the auxiliary portion 64) so ​​as to disengage the first engagement portion 52 and the second engagement portion 62 (e.g., the first engagement portion 52 and the second engagement portion 62 are laterally offset from each other without blocking each other along the longitudinal direction). Therefore, when the second rail 24 is further moved along the retraction direction D1, the other of the auxiliary unit 64 and the drive unit 66 (the drive unit 66) drives (presses, etc.) the sliding assist device 26 so as to move away from the first predetermined position K1 along the retraction direction D1. The sliding support device 26 is configured to abut against a predetermined portion 67 of the sliding support device 26 so that the sliding support device 26 abuts against the predetermined portion 67 of the sliding support device 26.

[0029] Therefore, according to the embodiment of the present invention, the auxiliary portion 64 is configured to abut against the elastic member 50 (the engagement structure 33 of the elastic member 50) to move the elastic member 50 (the elastic portion 60 of the elastic member 50) and switch the elastic member 50 from the first state S1 (shown in FIG. 4 ) to the second state S2 (shown in FIG. 5 ) in order to release the engagement between the first locking portion 52 and the locking mechanism 62. Furthermore, the drive unit 66 is configured to contact the predetermined portion 67 of the sliding assist device 26 so as to forcibly drive the sliding assist device 26 away from the first predetermined position K1 along the retraction direction D1, thereby reliably moving the sliding assist device 26 from the first predetermined position K1 along the retraction direction D1.

[0030] During the process of inserting the second rail 24 into the passage 37 of the first rail 22 along the retraction direction D1, the auxiliary portion 64 is preferably configured to abut against the second guide portion 56 of the engagement structure 33 via the first guide portion 68a in order to move the elastic portion 60 of the elastic member 50 to switch from the first state S1 (shown in FIG. 4) to the second state S2 (shown in FIG. 5).

[0031] As shown in FIGS. 5, 6, and 7, the slide rail assembly 20 further includes an action member 70 disposed on the first rail 22, and a predetermined structure 72 disposed on the second rail 24 (as shown in FIG. 6, see also FIG. 2). The predetermined structure 72 is configured to cooperate with the action member 70. The action member 70 is preferably pivotally connected to the first rail 22 (the longitudinal wall 36 of the first rail 22) via a shaft member 74. The shaft member 74 is disposed in a direction substantially the same as the lateral direction (the lateral direction of the first rail 22) or the Y-axis direction (see also FIG. 2). The action member 70 includes an action portion 76. The predetermined structure 72 has a space such as an opening formed therein, but the present invention is not limited thereto. The predetermined structure 72 is located on or adjacent to the second wall 38b of the second rail 24. On the other hand, (as shown in FIG. 6 ) the rolling member 44 on the first side 46 a is configured to provide support between the first wall 34 a of the first rail 22 and the first wall 38 a of the second rail 24, and the rolling member 44 on the second side 46 b is configured to provide support between the second wall 34 b of the first rail 22 and the second wall 38 b of the second rail 24.

[0032] When the resilient portion 60 of the resilient member 50 is in the second state S2 (as shown in FIGS. 5 and 6 ), the sliding assist device 26 can be moved along the retraction direction D1 from the first predetermined position K1 to the second predetermined position K2 (as shown in FIG. 7 ) such that the sliding assist device 26 is adjacent to the second end 22 b of the first rail 22. Furthermore, when the second rail 24 (and first rail 22) is in the retracted position R relative to the third rail 28 and the sliding assist device 26 is located at the second predetermined position K2, the slide rail assembly 20 is in a retracted state (such as the fully retracted state shown in FIG. 7 ). Because the sliding assist device 26 is in the second predetermined position K2, the rolling member 44 of the sliding assist device 26 is configured to provide support between the first rail 22 and the second rail 24. 7, the rolling member 44 of the sliding assist device 26 is configured to provide support between the first wall 34a of the first rail 22 and the first wall 38a of the second rail 24, and to provide support between the second wall 34b of the first rail 22 and the second wall 38b of the second rail 24, in order to maintain a predetermined gap G between the first rail 22 (the second wall 34b of the first rail 22) and the second rail 24 (the second wall 38b of the second rail 24). This improves the reliability of the predetermined structure 72 that cooperates with the acting member 70.

[0033] Preferably, the first rail 22 further includes at least one blocking portion 77. When the sliding assist device 26 is located at the second predetermined position K2, the blocking portion 77 is configured to block the sliding assist device 26 to prevent the sliding assist device 26 from moving further along the retraction direction D1.

[0034] The slide rail assembly 20 preferably further includes an elastic portion 78 configured to provide an elastic force to the acting member 70. When the second rail 24 is located in the retracted position R relative to the first rail 22 (or the third rail 28), the second wall 38b of the second rail 24 is configured to support the acting portion 76 of the acting member 70, and the elastic portion 78 is configured to accumulate a predetermined elastic force.

[0035] As shown in FIG. 8, during the process of moving the second rail 24 from the retracted position R along the opening direction D2 relative to the first rail 22 (or the third rail 28), the acting member 70 and the predetermined structure 72 are configured to engage with each other so that the first rail 22 is configured to move synchronously relative to the second rail 24 along the opening direction D2 relative to the third rail 28.

[0036] Specifically, when the second rail 24 moves a predetermined distance from the retracted position R along the opening direction D2 relative to the first rail 22 (or the third rail 28), the second wall 38b of the second rail 24 no longer supports the acting portion 76 of the acting member 70, and the elastic portion 78 releases the predetermined elastic force to rotate the acting member 70, causing the acting portion 76 of the acting member 70 to enter the space provided by the predetermined structure 72. Therefore, the acting portion 76 of the acting member 70 and the predetermined structure 72 are configured to engage with each other so that the second rail 24 and the first rail 22 move synchronously along the opening direction D2 relative to the third rail 28 (the predetermined wall 80 of the predetermined structure 72 beside the space is configured to push the acting portion 76 of the acting member 70 when the second rail 24 moves along the opening direction D2).

[0037] Furthermore, the synchronous movement arrangement between the second rail 24 and the first rail 22 can be defeated by a predetermined structure of the third rail 28 before the second rail 24 is removed from the passage 37 of the first rail 22 along the opening direction D2. Such arrangements are well known to those skilled in the art and further description will be omitted for the sake of brevity.

[0038] Therefore, the slide rail assembly 20 according to the embodiment of the present invention has the following technical features.

[0039] 1) When the second rail 24, which has been removed from the passage 37 of the first rail 22 (as shown in FIG. 4), is reinserted into the passage 37 of the first rail 22 along the retraction direction D1 (as shown in FIG. 5), the second rail 24 is configured to contact the elastic member 50 (the engagement structure 33 of the elastic member 50) via the auxiliary portion 64 to move the elastic member 50 (the elastic portion 60 of the elastic member 50) from the first state S1 (as shown in FIG. 4) to the second state S2 (as shown in FIG. 5) and release the first engagement portion 52 and the second engagement portion 62 from each other. Furthermore, the drive portion 66 of the second rail 24 is configured to contact the predetermined portion 67 of the sliding assist device 26 to forcibly drive the sliding assist device 26 away from the first predetermined position K1 along the retraction direction D1, thereby reliably moving the sliding assist device 26 away from the first predetermined position K1 along the retraction direction D1.

[0040] 2) When the sliding assist device 26 is moved from the first predetermined position K1 to the second predetermined position K2 along the retraction direction D1, the rolling member 44 of the sliding assist device 26 is configured to provide support between the first rail 22 and the second rail 24. For example, as shown in FIG. 7 , the rolling member 44 of the sliding assist device 26 is configured to provide support between the first wall 34a of the first rail 22 and the first wall 38a of the second rail 24, and to provide support between the second wall 34b of the first rail 22 and the second wall 38b of the second rail 24, thereby maintaining a predetermined gap G between the first rail 22 (the second wall 34b of the first rail 22) and the second rail 24 (the second wall 38b of the second rail 24). This improves the reliability of the predetermined structure 72 cooperating with the acting member 70. For example, the stability or reliability of the engagement between the working member 70 and the predetermined structure 72 is improved so that the second rail 24 and the first rail 22 can be moved synchronously along the opening direction D2 relative to the third rail 28.

[0041] 3) The sliding assist device 26 is movable between a first predetermined position K1 and a second predetermined position K2 to increase the support stability between the first rail 22 and the second rail 24, improve the reliability of the predetermined structure 72 cooperating with the acting member 70, and ensure that the synchronous movement configuration between the second rail 24 and the first rail 22 operates normally.

[0042] Those skilled in the art will readily appreciate that numerous modifications and variations can be made to the apparatus and method while retaining the teachings of the present invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.

Claims

1. a first rail having a passageway formed therein; a second rail longitudinally movable relative to the first rail; a sliding assist device movably attached between the first rail and the second rail; 1. A slide rail assembly comprising: one of the first rail and the sliding assist device includes an elastic member having a first engagement portion, and the other of the first rail and the sliding assist device includes a second engagement portion, the first engagement portion and the second engagement portion being configured to engage with each other to prevent the sliding assist device from moving along a retraction direction from a first predetermined position; the second rail includes an auxiliary portion and a drive portion; When the second rail removed from the passage of the first rail is reinserted into the passage of the first rail along the retraction direction, the second rail is configured to contact the elastic member via the auxiliary portion to move the elastic member and switch it from the first state to the second state, thereby disengaging the first engagement portion from the second engagement portion; and when the second rail is further moved along the retraction direction, the drive portion is configured to contact the predetermined portion of the sliding assist device to drive the sliding assist device to move away from the first predetermined position along the retraction direction. A slide rail assembly, wherein the sliding assist device has a first end and a second end, the second end has a cutout portion, and the predetermined portion is a section formed in the cutout portion that is bent or protrudes toward the second rail.

2. the sliding assist device is located within the passage of the first rail; The slide rail assembly of claim 1 , wherein the sliding assist device includes a plurality of rolling members configured to provide support between the first rail and the second rail.

3. each of the first rail and the second rail includes a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall; the sliding assist device includes a first side portion, a second side portion, and a longitudinal portion connected between the first side portion and the second side portion; 3. The slide rail assembly of claim 2, wherein the plurality of rolling members are disposed on the first side and the second side and are configured to provide support between a first wall of the first rail and a first wall of the second rail, and are configured to provide support between a second wall of the first rail and a second wall of the second rail.

4. the first rail has opposite first and second ends; The slide rail assembly of claim 2 , wherein the sliding assist device is adjacent to a first end of the first rail when the sliding assist device is located in the first predetermined position.

5. 5. The slide rail assembly of claim 4, wherein the sliding assist device is adjacent to a second end of the first rail when the sliding assist device is moved from the first predetermined position along the retraction direction to a second predetermined position.

6. a first rail having a passageway formed therein; a second rail; a sliding assist device located within the passage of the first rail and movably mounted between the first rail and the second rail; 1. A slide rail assembly comprising: one of the first rail and the sliding assist device includes an elastic member having a first engagement portion, and the other of the first rail and the sliding assist device includes a second engagement portion, the first engagement portion and the second engagement portion being configured to engage with each other to prevent the sliding assist device from moving along a retraction direction from a first predetermined position; the second rail includes an auxiliary portion and a drive portion; When the second rail is inserted into the passage of the first rail from outside the passage of the first rail along the retraction direction, the second rail is configured to contact the elastic member via the auxiliary portion so as to move the elastic member and switch it from a first state to a second state, thereby disengaging the first engagement portion and the second engagement portion, and when the second rail is further moved along the retraction direction, the drive portion is configured to contact a predetermined portion of the sliding assist device to drive the sliding assist device away from the first predetermined position along the retraction direction, the sliding assist device has a first end and a second end, the second end has a cutout portion, and the predetermined portion is a section formed in the cutout portion that is bent or protrudes toward the second rail; the slide rail assembly further includes a third rail, the first rail being movably mounted between the third rail and the second rail; The slide rail assembly further includes an acting member disposed on the first rail, and a predetermined structure disposed on the second rail, the acting member and the predetermined structure configured to engage with each other such that the first rail is configured to move synchronously with the second rail relative to the third rail along the opening direction during a process in which the second rail is moved along the opening direction from a retracted position relative to the first rail.

7. 7. The slide rail assembly of claim 6, wherein the sliding assist device includes a plurality of rolling members configured to provide support between the first rail and the second rail.

8. each of the first rail and the second rail includes a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall; and the sliding assist device includes a first side portion, a second side portion, and a longitudinal portion connected between the first side portion and the second side portion; 8. The slide rail assembly of claim 7, wherein the plurality of rolling members are disposed on the first side and the second side and are configured to provide support between a first wall of the first rail and a first wall of the second rail, and are configured to provide support between a second wall of the first rail and a second wall of the second rail.

9. the first rail has opposite first and second ends; When the sliding assist device is located at the first predetermined position, the sliding assist device is adjacent to a first end of the first rail; 8. The slide rail assembly of claim 7, wherein the sliding assist device is adjacent to a second end of the first rail when the sliding assist device is moved from the first predetermined position along the retraction direction to a second predetermined position.

10. the third rail is an outer rail, the first rail is an intermediate rail, and the second rail is an inner rail; the action member is pivotally connected to the first rail via a shaft member, and the action member includes an action portion; The predetermined structure has a space formed therein configured to accommodate the action portion of the action member, the shaft member is disposed in a direction substantially the same as a lateral direction of the first rail; The slide rail assembly of claim 6 , further comprising a resilient portion configured to provide a resilient force to the working member.

Images