Slide rail assembly

Abstract

To provide a slide rail assembly that uses a rail for terminating engagement of an auxiliary sliding device with another rail.SOLUTION: A slide rail assembly includes a first rail 22, a second rail 24, an auxiliary sliding device 26, and an auxiliary member 28. The auxiliary sliding device is movably mounted between the first rail and the second rail. The auxiliary member is arranged on the first rail. When the second rail is removed from a channel of the first rail, a first prescribed feature 48 of the auxiliary slide device engages with a second prescribed feature 52 in an elastic arm 50 of the auxiliary member so as to hold the auxiliary sliding device at a prescribed position P. When the second rail is inserted into the channel of the first rail, the second rail butts against the elastic arm due to a working portion 60, which causes the second prescribed feature of the elastic arm to be disengaged from the first prescribed feature of the auxiliary sliding device.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a slide rail assembly according to the preamble (preceding the characterizing part) of claim 1.

Background Art

[0002] U.S. Patent No. 6,820,954 (Patent Document 1) discloses a slide rail assembly including a first rail, a second rail, a rolling ball module, and a controller. The first rail and the second rail are an intermediate rail and an inner rail, respectively. The first rail includes a channel configured to receive the second rail and the rolling ball module. The rolling ball module is movably attached between the first rail and the second rail to facilitate smooth displacement of the second rail with respect to the first rail. The controller is disposed on the first rail and includes a lock. To lock the rolling ball module at a predetermined position, the lock includes a lock portion configured to extend into the channel of the first rail through a hole provided in the side wall of the first rail. When the second rail is inserted into the channel of the first rail, a protruding portion of the second rail abuts against the lock portion, disengaging the lock portion from the rolling ball module and enabling the rolling ball module to be displaced from the predetermined position. However, the hole provided in the side wall of the first rail affects the structural strength of the first rail.

[0003] Furthermore, U.S. Patent No. 9,279,451 (Patent Document 3) discloses a slide rail assembly comprising an outer rail, an intermediate rail, an inner rail, and a rolling ball module. The intermediate rail is movably mounted between the outer rail and the inner rail. The intermediate rail includes a channel configured to receive the inner rail. The rolling ball module is movably mounted between the intermediate rail and the inner rail. A locking arm is positioned on the intermediate rail and configured to engage with the rolling ball module, for example, the ball retaining portion of the rolling ball module. The locking arm includes an engaging portion and an operating portion. The operating portion is configured to extend into the channel of the intermediate rail through a hole in the side wall of the intermediate rail. The engaging portion is configured to engage with the rolling ball module to hold the rolling ball module in place. The operating portion includes a bending portion for cooperating with the inner rail to disengage the engaging portion from the rolling ball module. However, similarly, the hole in the side wall of the intermediate rail adversely affects the structural strength of the intermediate rail.

[0004] Furthermore, in U.S. Patent No. 6,820,954, the lock is configured to be disengaged from the rolling ball module by pushing in a locking portion that extends into the channel of the first rail. In U.S. Patent No. 9,279,451, the locking arm is configured to be disengaged from the rolling ball module by pushing in a working portion that extends into the channel of the intermediate rail. However, the locking portion in U.S. Patent No. 6,820,954 and the working portion in U.S. Patent No. 9,279,451 may not only interfere with other structures but may also be unintentionally pushed by other features due to their telescopic configurations. Therefore, U.S. Patents No. 6,820,954 and No. 9,279,451 have drawbacks in terms of rail support and displacement stability.

[0005] Furthermore, U.S. Patent No. 6,851,773 (Patent Document 2) discloses an auxiliary slide positioning mechanism for a drawer slide. This auxiliary slide positioning mechanism includes a positioning member, an auxiliary slide member, and a release member. The positioning member is positioned at the open end of the first rail and includes a resilient hook rod. The resilient hook rod includes a hook portion. The hook portion is configured to extend into a hole in the first rail. The auxiliary slide member is positioned between the first rail and the second rail and includes an engagement slot. The release member is fixed to the first rail and includes two inclined surfaces. When the second rail is removed from the first rail, the resilient hook rod of the positioning member can engage with the engagement slot of the auxiliary slide member. When the second rail is inserted into the first rail, the inclined surfaces of the release member are configured to disengage the resilient hook rod of the positioning member from the engagement slot of the auxiliary slide member. However, the hole in the first rail also adversely affects the structural strength of the first rail. Furthermore, the resilient hook rod is configured to move up and down in the height direction of the first or second rail. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] U.S. Patent No. 6820954 [Patent Document 2] U.S. Patent No. 6851773 [Patent Document 3] U.S. Patent No. 9279451 [Overview of the project]

[0007] Therefore, in order to meet various requirements, providing alternative solutions to release the auxiliary sliding device and allow for its displacement becomes an important theme.

[0008] Therefore, the present invention aims to provide a slide rail assembly that utilizes a rail to terminate the engagement between an auxiliary slide device and another rail.

[0009] This is achieved by the slide rail assembly described in claim 1. Dependent claims relate to corresponding further development and improvement.

[0010] As will become clearer from the detailed description below, the slide rail assembly described in the claim is: A first rail comprising a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the first rail, wherein the first wall, the second wall, and the longitudinal wall of the first rail cooperate to define the channel of the first rail, A second rail is movably attached to the channel of the first rail, and the working section is positioned on the second rail, An auxiliary slide device movably mounted on the channel of the first rail, the auxiliary slide device includes a body and a plurality of rolling members arranged on the body and supported between the first rail and the second rail, the body of the auxiliary slide device includes a first predetermined feature part, The auxiliary member is positioned within the channel of the first rail and includes an elastic arm, and comprises an auxiliary member in which a second predetermined feature portion and an operating section are positioned on the elastic arm. When the second rail is removed from the channel of the first rail in the outward direction, the auxiliary slide device is held in a predetermined position by the engagement of the first predetermined feature portion and the second predetermined feature portion. The second predetermined feature portion is driven to engage with the first predetermined feature portion in the first transverse direction in response to the elastic force of the elastic arm. When the second rail is inserted into the channel of the first rail from outside the channel of the first rail in a backward direction, the working portion of the second rail abuts against the operating section of the elastic arm, driving the elastic arm and disengaging the second predetermined feature portion from the first predetermined feature portion in a second transverse direction, which is opposite to the second transverse direction, in order to allow the auxiliary sliding device to be displaced backward from a predetermined position.

[0011] In summary, the present invention can solve the aforementioned drawbacks of the prior art and enhance structural strength. [Brief explanation of the drawing]

[0012] The present invention will be further described below with reference to the attached drawings.

[0013] [Figure 1] This is a schematic diagram of a slide rail assembly according to an embodiment of the present invention. [Figure 2] This is an exploded view of a slide rail assembly according to an embodiment of the present invention. [Figure 3] This is a partial view of a slide rail assembly in which the auxiliary slide device is held in a predetermined position, relating to an embodiment of the present invention. [Figure 4] This is a diagram of an auxiliary member according to an embodiment of the present invention. [Figure 5] This figure relates to an embodiment of the present invention and shows a slide rail assembly in which the second rail has been removed from the channel of the first rail. [Figure 6] This figure shows a slide rail assembly in which the second rail is inserted into the channel of the first rail, relating to an embodiment of the present invention. [Figure 7] This is a diagram of a slide rail assembly in another figure, relating to an embodiment of the present invention, in which the second rail is inserted into the channel of the first rail. [Figure 8] This is an enlarged view of part A of the slide rail assembly shown in Figure 7, according to an embodiment of the present invention. [Figure 9] This is a partially enlarged view of a slide rail assembly in which the second rail has been displaced in the backward direction from the position shown in Figure 8, according to an embodiment of the present invention. [Figure 10] This is a partially enlarged view of a slide rail assembly in which the second rail has been displaced in the backward direction from the position shown in Figure 9, according to an embodiment of the present invention. [Modes for carrying out the invention]

[0014] The accompanying drawings, which form a part of this specification and illustrate specific embodiments in which the present invention can be implemented, are referred to in the detailed description of the following preferred embodiments. In this regard, terms regarding directions such as "upper", "lower", "left", "right", "front", "rear", etc. are used with reference to the orientation of the described figures. The components (members) of the present invention may be arranged in a number of different directions. Therefore, terms regarding directions are used for explanatory purposes and are by no means limiting. Accordingly, the drawings and the description are considered to be essentially exemplary and not restrictive. Also, when not specified, the term "connect" is intended to mean either an indirect or direct mechanical connection. Therefore, when a first device is connected to a second device, the connection may be via a direct mechanical connection or via an indirect mechanical connection via another device and connection.

[0015] As shown in FIGS. 1 and 2, the slide rail assembly 20 includes a first rail 22, a second rail 24, an auxiliary slide device 26, and an auxiliary member 28. Preferably, the slide rail assembly 20 may further include a third rail 30, and the first rail 22 may be movably attached between the second rail 24 and the third rail 30. That is, the first rail 22, the second rail 24, and the third rail 30 may be an intermediate rail, an inner rail, and an outer rail, respectively. In this embodiment, as an example, the longitudinal direction may be defined by the length direction or displacement direction of a slide rail, such as the first rail 22, the second rail 24, or the third rail 30, and may be parallel to the X axis. The transverse direction may be defined by the transverse direction or width direction of a slide rail, such as the first rail 22, the second rail 24, or the third rail 30, and may be parallel to the Y axis. The vertical direction may be defined by the height direction of a slide rail, such as the first rail 22, the second rail 24, or the third rail 30, and may be parallel to the Z axis.

[0016] The first rail 22 includes a first wall 32a, a second wall 32b, and a longitudinal wall 34 connected between the first wall 32a and the second wall 32b of the first rail 22. The first wall 32a, the second wall 32b, and the longitudinal wall 34 of the first rail 22 cooperate to define a channel 36 of the first rail 22. The first rail 22 has a front end portion 22a and a rear end portion 22b.

[0017] The second rail 24 is movably attached to the channel 36 of 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 has a front end portion 24a and a rear end portion 24b.

[0018] The auxiliary slide device 26 is movably attached to the channel 36 of the first rail 22 and is for facilitating smooth displacement of the second rail 24 with respect to the first rail 22. Specifically, the auxiliary slide device 26 includes a main body 42 and a plurality of rolling members 44 disposed on the main body 42 and supported between the first rail 22 and the second rail 24. As an example in this embodiment, the plurality of rolling members 44 may be a plurality of rolling balls.

[0019] Preferably, the main body 42 of the auxiliary slide device 26 includes a first edge portion [46a] and a second edge portion 46b. The first edge portion 46a and the second edge portion 46b may have substantially the same structure. Further, the plurality of rolling members 44 are arranged at intervals and are arranged longitudinally on the first edge portion 46a and the second edge portion 46b. The plurality of rolling members 44 are supported between the first wall 32a of the first rail 22 and the first wall 38a of the second rail 24, and also between the second wall 32b of the first rail 22 and the second wall 38b of the second rail 24.

[0020] The auxiliary member 28 is disposed in the channel 36 of the first rail 22. Preferably, the auxiliary member 28 is disposed on the longitudinal wall 34 of the first rail 22 and is disposed adjacent to the front end portion 22a of the first rail 22.

[0021] As shown in Figures 3 and 4, the main body 42 of the auxiliary slide device 26 includes a first predetermined feature section 48. Furthermore, the auxiliary member 28 includes an elastic arm 50, and a second predetermined feature section 52 and an operating section 54 are arranged on the elastic arm 50. The second predetermined feature section 52 is configured to cooperate with the first predetermined feature section 48.

[0022] Preferably, the auxiliary member 28 further includes a connecting portion 56 fixed to the longitudinal wall 34 of the first rail 22. The elastic arm 50 extends from the connecting portion 56 toward the rear end 22b of the first rail 22. The elastic arm 50 includes two ends. One end of the elastic arm 50 is positioned with a bent portion 57 connected to the connecting portion 56. As a result, the lateral distance between the other end of the elastic arm 50 away from the connecting portion 56 and the longitudinal wall 34 of the first rail 22 is greater than the lateral distance between the connecting portion 56 and the longitudinal wall 34 of the first rail 22 by a lateral difference G. The elastic arm 50 extends from the connecting portion 56 by a predetermined longitudinal distance K. The elastic arm 50 is positioned adjacent to the first wall 32a of the first rail 22. The operating section 54 is connected to the elastic arm 50 and is positioned adjacent to the second predetermined feature portion 52.

[0023] Preferably, the working section 54 includes a first end and a second end on opposite sides. A first guide feature 54a is formed at the first end of the working section 54, and a second guide feature 54b is formed at the second end of the working section 54. In this embodiment, for example, the first end and the second end of the working section 54 may be the rear end and the front end of the working section 54, respectively, and the first guide feature 54a and the second guide feature 54b may be inclined surfaces or arcuate surfaces.

[0024] Preferably, one of the first predetermined feature portion 48 and the second predetermined feature portion 52 is a housing structure defined by a plurality of walls, for example, a front wall 58a and a rear wall 58b, and the other of the first predetermined feature portion 48 and the second predetermined feature portion 52 is a projection configured to extend into the housing structure. In this embodiment, for example, the first predetermined feature portion 48 may be a housing structure, for example, a hole or a slot, and the second predetermined feature portion 52 may be a projection configured to extend into the housing structure to engage with the front wall 58a and the rear wall 58b.

[0025] As shown in Figure 5, when the second rail 24 is removed from the channel 36 of the first rail 22 in the opening direction D1, the auxiliary slide device 26 may be held in a predetermined position P by the engagement of the first predetermined feature portion 48 and the second predetermined feature portion 52. As shown in Figure 3, the second predetermined feature portion 52 is configured to engage with the first predetermined feature portion 48 in the first transverse direction T1 in response to the elastic force of the elastic arm 50 in the first transverse direction T1. Preferably, when the auxiliary slide device 26 is in the predetermined position P, the auxiliary slide device 26 is located adjacent to the front end portion 22a of the first rail 22.

[0026] As shown in Figures 6 to 8, a working portion 60 (functional portion 60) is positioned on the second rail 24. The working portion 60 may be directly formed on the second rail 24 or indirectly connected. In this embodiment, for example, the working portion 60 may extend in a curved manner from the longitudinal wall 40 of the second rail 24. However, the present invention is not limited to this embodiment. The second rail 24 can be inserted into the channel 36 of the first rail 22 from the outside of the channel 36 of the first rail 22 in a backward direction D2 so as to be attached to the channel 36 of the first rail 22. Preferably, the working portion 60 includes a first end and a second end, and a first guide feature portion 60a and a second guide feature portion 60b are formed on the first end and second end of the working portion 60, respectively. In this embodiment, for example, the first end and second end of the work section 60 may be the rear end and front end of the work section 60, respectively, and the first guide feature portion 60a and the second guide feature portion 60b may be an inclined surface or an arcuate surface.

[0027] Furthermore, as shown in Figure 8, the operating section 54 of the elastic arm 50 is spaced at a first lateral distance M1 from the longitudinal wall 34 of the first rail 22, and the working section 60 on the second rail 24 is spaced at a second lateral distance M2, which is smaller than the first lateral distance M1, from the longitudinal wall 34 of the first rail 22.

[0028] As shown in Figures 9 and 10, when the second rail 24 is inserted into the channel 36 of the first rail 22 in the backward direction D2, the first guide feature portion 60a of the working portion 60 on the second rail 24 abuts against the second guide feature portion 54b of the operating section 54 of the elastic arm 50, driving the elastic arm 50 to disengage the second predetermined feature portion 52 from the front wall 58a of the first predetermined feature portion 48 in the second transverse direction T2, opposite to the first transverse direction T1. This allows the auxiliary slide device 26 to be displaced in the backward direction D2 from the predetermined position P. In this way, when the second rail 24 is displaced further in the backward direction D2 from the position shown in Figure 10, the auxiliary slide device 26 is able to be displaced in the backward direction D2. This supports the second rail 24, ensures that the second rail 24 is smoothly displaced relative to the first rail 22, and facilitates the backward displacement of the second rail 24 into the channel 36 of the first rail 22 in the backward direction D2.

[0029] Preferably, as shown in Figure 9, the first transverse direction T1 is the direction toward the longitudinal wall 34 of the first rail 22. The engagement direction of the second predetermined feature portion 52 and the elastic force of the elastic arm 50 are oriented toward the longitudinal wall 34 of the first rail 22. As shown in Figure 10, the second transverse direction T2 is the direction toward the longitudinal wall 34 of the first rail 22, that is, the second transverse direction T2 is the direction toward the longitudinal wall 40 of the second rail 24.

[0030] Preferably, when the second predetermined feature portion 52 engages with the first predetermined feature portion 48 in the first transverse direction T1 in response to the elastic force of the elastic arm 50 in the first transverse direction T1, the second predetermined feature portion 52 abuts against the longitudinal wall 34 of the first rail 22. This improves the stability and reliability of the engagement between the first predetermined feature portion 48 and the second predetermined feature portion 52.

[0031] Preferably, the second predetermined feature portion 52 includes a guide portion 62, for example, an inclined surface or an arcuate surface. As shown in Figure 9, in order to hold the auxiliary slide device 26 in a predetermined position P, the guide portion 62 is configured to facilitate the passage of the front end of the body 42 of the auxiliary slide device 26 through the second predetermined feature portion 52 in the opening direction D1 until the second predetermined feature portion 52 engages with the first predetermined feature portion 48.

[0032] Based on the above, the slide rail assembly 20 of the present invention has the following features.

[0033] 1. Compared with U.S. Patent No. 6,820,954 (Patent Document 1), U.S. Patent No. 9,279,451 (Patent Document 3), and U.S. Patent No. 6,851,773 (Patent Document 2), the elastic arm 50 of the auxiliary member 28 of the present invention is positioned in the channel 36 of the first rail 22 and is configured to cooperate directly with the working section 60 on the second rail 24. Therefore, the present invention does not require holes or slot structures in the first rail 22 and increases the structural strength of the first rail 22.

[0034] 2. Compared to U.S. Patent No. 9,279,451, the second predetermined feature portion 52 and the operating section 54 of the present invention are configured to move toward the longitudinal wall 40 of the second rail 24 only when the working portion 60 on the second rail 24 abuts against the operating section 54 of the elastic arm 50 during insertion of the second rail 24 into the channel 36 of the first rail 22. In other words, the operating section 54 does not permanently occupy any moving space of any other part of the second rail 24. Therefore, during the process in which the second rail 24 is inserted into the channel 36 of the first rail 22 from outside the channel 36 of the first rail 22 in the backward direction D2, the present invention can not only prevent the operating section 54 from interfering with other structures on the second rail 24, but also ensure that the second predetermined feature portion 52 and the first predetermined feature portion 48 are not unexpectedly disengaged due to accidental contact between the operating section 54 and other structures or features on the second rail 24. As a result, the auxiliary sliding device 26 is not released from its predetermined position P before the first guide feature portion 60a of the working section 60 on the second rail 24 abuts against the second guide feature portion 54b of the operating section 54 of the elastic arm 50.

[0035] 3. When the second predetermined feature portion 52 engages with the first predetermined feature portion 48 in the first transverse direction T1 in response to the elastic force of the elastic arm 50, the second predetermined feature portion 52 abuts against the longitudinal wall 34 of the first rail 22. Therefore, the present invention can provide improved stability and reliability to the engagement between the first predetermined feature portion 48 and the second predetermined feature portion 52.

[0036] Those skilled in the art will readily understand that numerous modifications and changes to the apparatus and method may be made while retaining the teachings of the present invention. Accordingly, the above disclosure shall be construed as being limited only to the scope of the appended claims.

Claims

1. A first rail comprising a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the first rail, wherein the first wall, the second wall, and the longitudinal wall cooperate to define the channel of the first rail, A second rail is movably attached to the channel of the first rail, and the working section is located on the second rail, An auxiliary slide device movably mounted to the channel of the first rail, the auxiliary slide device includes a main body and a plurality of rolling members arranged on the main body and supported between the first rail and the second rail, the main body of the auxiliary slide device includes a first predetermined feature portion, The auxiliary member is disposed within the channel of the first rail and includes an elastic arm, wherein the second predetermined feature portion and the operating section are arranged on the elastic arm of the auxiliary member, When the second rail is removed from the channel of the first rail in the outward direction, the auxiliary slide device is held in a predetermined position by the engagement of the first predetermined feature portion and the second predetermined feature portion. The second predetermined feature portion is driven to engage with the first predetermined feature portion in the first transverse direction in response to the elastic force of the elastic arm. When the second rail is inserted into the channel of the first rail from outside the channel of the first rail in a backward direction, the working portion of the second rail abuts against the operating section of the elastic arm and drives the elastic arm, and the second predetermined feature portion is disengaged from the first predetermined feature portion in a second transverse direction, which is opposite to the second transverse direction, in order to allow the auxiliary sliding device to be displaced from the predetermined position in the backward direction. The first transverse direction is the direction toward the longitudinal wall of the first rail, and the second transverse direction is the direction toward the longitudinal wall of the first rail. Slide rail assembly.

2. The slide rail assembly according to claim 1, wherein one of the first and second predetermined feature portions is a housing structure defined by a plurality of walls, and the other of the first and second predetermined feature portions is a projection configured to extend into the housing structure.

3. The slide rail assembly according to claim 1, wherein the auxiliary member further includes a connecting portion fixed to the longitudinal wall of the first rail, and the elastic arm extends from the connecting portion at a predetermined longitudinal distance and is located adjacent to the first wall of the first rail.

4. The slide rail assembly according to claim 3, wherein the elastic arm is configured with a bent portion connected to the connecting portion, and as a result, the lateral distance between the elastic arm and the longitudinal wall of the first rail is greater than the lateral distance between the connecting portion and the longitudinal wall of the first rail.

5. The slide rail assembly according to claim 1, wherein the operating section is connected to the elastic arm and is located adjacent to the second predetermined feature portion.

6. The second rail has a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the second rail, and the main body of the auxiliary slide device has a first edge portion and a second edge portion. The slide rail assembly according to claim 1, wherein the plurality of rolling members are arranged in the first edge portion and the second edge portion, and the plurality of rolling members are supported between the first wall of the first rail and the first wall of the second rail, and between the second wall of the first rail and the second wall of the second rail.

7. The operating section is spaced at a first lateral distance from the longitudinal wall of the first rail, and the working section is spaced at a second lateral distance smaller than the first lateral distance from the longitudinal wall of the first rail. The guide feature is formed in one of the work section and the operating section, When the second rail is inserted into the channel of the first rail from outside the channel of the first rail in the backward direction, the guide feature portion abuts against the other of the working portion and the operating section, driving the elastic arm and disengaging the second predetermined feature portion from the first predetermined feature portion in order to allow the auxiliary slide device to be displaced from the predetermined position in the backward direction. The slide rail assembly according to claim 1, wherein the first rail has a front end and a rear end, and the auxiliary slide device is positioned adjacent to the front end of the first rail when in the predetermined position.

8. Furthermore, the slide rail assembly according to any one of claims 1 to 7, further comprising a third rail, wherein the first rail is movably mounted between the third rail and the second rail.

9. The slide rail assembly according to any one of claims 1 to 7, wherein when the second predetermined feature portion engages with the first predetermined feature portion in the first transverse direction in response to the elastic force of the elastic arm in the first transverse direction, the second predetermined feature portion abuts against the longitudinal wall of the first rail.

10. A first rail comprising a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the first rail, wherein the first wall, the second wall, and the longitudinal wall of the first rail cooperate to define a channel of the first rail, A second rail is movably attached to the channel of the first rail, and the working section is located on the second rail, An auxiliary slide device movably mounted to the channel of the first rail, the auxiliary slide device includes a main body and a plurality of rolling members arranged on the main body and supported between the first rail and the second rail, the main body of the auxiliary slide device includes a first predetermined feature portion, The auxiliary member is disposed within the channel of the first rail and includes an elastic arm, wherein the second predetermined feature portion and the operating section are arranged on the elastic arm of the auxiliary member, When the second rail is removed from the channel of the first rail in the outward direction, the auxiliary slide device is held in a predetermined position by the engagement of the first predetermined feature portion and the second predetermined feature portion. The second predetermined feature portion is driven to engage with the first predetermined feature portion in the first transverse direction in response to the elastic force of the elastic arm. When the second rail is inserted into the channel of the first rail from outside the channel of the first rail in a backward direction, the working portion of the second rail abuts against the operating section of the elastic arm and drives the elastic arm, and the second predetermined feature portion is disengaged from the first predetermined feature portion in a second transverse direction, which is opposite to the second transverse direction, in order to allow the auxiliary sliding device to be displaced from the predetermined position in the backward direction. When the second predetermined feature portion engages with the first predetermined feature portion in the first predetermined feature portion in the first predetermined feature portion in response to the elastic force of the elastic arm in the first transverse direction, the second predetermined feature portion abuts against the longitudinal wall of the first rail. Slide rail assembly.

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