CN113455843B

CN113455843B - Sliding rail assembly

Info

Publication number: CN113455843B
Application number: CN202010234706.XA
Authority: CN
Inventors: 陈庚金; 杨顺和; 周继志; 王俊强
Original assignee: King Slide Works Co Ltd; King Slide Technology Co Ltd
Current assignee: King Slide Works Co Ltd; King Slide Technology Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2022-05-27
Anticipated expiration: 2040-03-30
Also published as: CN113455843A

Abstract

The invention relates to a slide rail assembly, which comprises a first rail, a second rail, a contact structure and a locking device. The second rail can move relative to the first rail; the contact structure is disposed on the second rail. The lock device is arranged on the first rail and comprises a working piece which can be in a blocking state or an unblocking state relative to the first rail; when the second rail is at a folding position relative to the first rail, the contact structure can be blocked by the workpiece in the blocking state, so that the second rail is prevented from moving from the folding position to an opening direction relative to the first rail.

Description

Sliding rail assembly

Technical Field

The present invention relates to a sliding rail, and more particularly, to a sliding rail assembly with a lock device.

Background

U.S. patent publication No. US 6,883,884B 2 issued to Chen et al discloses a lock assembly for a slide rail assembly. The sliding rail assembly comprises a first rail and a second rail, and the first rail can be in a folding position and an extending position relative to the second rail. Wherein, the second rail is provided with a lock seat, and the first rail is provided with a lock assembly. When the first rail is in the folding position relative to the second rail, the first rail can be locked on the lock seat of the second rail through the lock assembly, so that the first rail is fixed at the folding position; once the lock assembly is unlocked from the lock seat, the first rail is allowed to move from the retracted position to the extended position in an opening direction.

Since the lock assembly is disposed at the front end of the first rail and the lock seat is disposed at the front end of the second rail, it also means that when the second rail is fixed to a cabinet (or a rack) and the first rail is loaded with a load (such as a drawer or an electronic device), once the first rail is in the retracted position relative to the second rail, anyone can operate the lock assembly from the front of the sliding rail assembly or the cabinet (or the load), so that the lock assembly is unlocked from the lock seat. On the other hand, the configuration needs to be matched with a special slide rail section to achieve the function of locking after the slide rail is folded.

However, depending on the market demand, it is sometimes not desirable to arrange the lock assembly and the lock seat at the front end of the slide rail assembly, and therefore, how to develop a different slide rail product to make the market have more choices becomes an issue to be discussed.

Disclosure of Invention

The invention aims to provide a sliding rail assembly with a lock device.

According to an aspect of the present invention, a sliding rail assembly includes a first rail, a second rail, a contact structure and a locking device. The first rail has a front portion and a rear portion; the second rail can move relative to the first rail, and the second rail is provided with a front part and a rear part; the contact structure is arranged at one of the rear part of the first rail and the rear part of the second rail; the lock device is arranged adjacent to the other one of the rear part of the first rail and the rear part of the second rail, and the lock device comprises a working piece which can be in one of a blocking state and an unblocking state; when the second rail is in a folding position relative to the first rail, the contact structure can be blocked by the workpiece in the blocking state, so that the second rail is prevented from moving from the folding position to an opening direction relative to the first rail; when the workpiece is in the non-blocking state, the workpiece cannot block the contact structure, so that the second rail is allowed to move from the retracted position to the opening direction relative to the first rail.

Preferably, the contact structure is disposed adjacent a rear portion of the second rail, and the lock device is disposed adjacent a rear portion of the first rail.

Preferably, the lock device further comprises an operating member movable relative to the workpiece; when the operating member moves from a first position to a second position, the operating member is used for driving the workpiece to be switched from the blocking state to the unblocking state.

Preferably, the lock device further comprises a resilient feature for providing a resilient force to the workpiece.

Preferably, the operating member includes a driving portion; when the operating member moves from the first position to the second position, the operating member can drive the workpiece to be switched from the blocking state to the unblocking state through the driving portion, and the driving portion is used for supporting the workpiece to be kept in the unblocking state.

Preferably, the lock device further comprises a base having a predetermined characteristic; the operating part is movably arranged on the base and is provided with an elastic arm; when the operating element moves from the first position to the second position, the operating element can be clamped to the predetermined characteristic through at least one clamping part of the elastic arm so as to keep the operating element at the second position.

Preferably, the lock device further comprises an elastic member disposed between the base and the operating member, and the second rail further comprises a release structure; when the second rail moves from the retracted position to the opening direction relative to the first rail, the second rail can drive the elastic arm through the releasing structure, so that at least one clamping part of the elastic arm is released from the preset characteristic of the base, the operating element can return to the first position from the second position in response to the elastic force of the elastic element, the driving part of the operating element does not support the operating element, and the operating element can keep in the blocking state in response to the elastic force of the elastic characteristic.

Preferably, the contact structure includes a guide feature; when the second rail moves from an extending position to a folding direction to the folding position relative to the first rail, the second rail can pass over the workpiece through the guide feature and return to the folding position.

Preferably, the base is provided with at least one lug, and the workpiece is pivoted to the at least one lug through a shaft member.

Preferably, the lock means is provided adjacent a bracket means at the rear of the first rail, and the bracket means comprises a longitudinal wall and at least one mounting member adjacent the longitudinal wall; the base is connected to the longitudinal wall, one of the operating part and the base is provided with at least one longitudinal guide part, and the operating part can be longitudinally displaced from the first position to the second position relative to the base through the at least one longitudinal guide part.

According to another aspect of the present invention, a sliding rail assembly includes a first rail, a second rail, a contact structure and a locking device. The second rail can move relative to the first rail; the contact structure is arranged on the second rail; the lock device is arranged on the first rail and comprises a working piece which can move relative to the first rail and is in one of a blocking state and a non-blocking state; when the second rail is in a folding position relative to the first rail, the contact structure can be blocked by the workpiece in the blocking state, so that the second rail is prevented from moving from the folding position to an opening direction relative to the first rail; when the workpiece is in the non-blocking state, the workpiece cannot block the contact structure, so that the second rail is allowed to move from the retracted position to the opening direction relative to the first rail.

Drawings

For further explanation of the above objects, structural features and effects of the present invention, the present invention will be described in detail with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of a slide rail assembly mounted to a frame according to an embodiment of the invention.

Fig. 2 is a perspective view of the slide rail assembly of the embodiment of the invention mounted to the rack from another perspective.

Fig. 3 is an exploded view of the slide rail assembly according to the embodiment of the invention.

Fig. 4 is an exploded view of a locking device of the slide rail assembly according to an embodiment of the invention.

Fig. 5 is a schematic view of the lock device of the slide rail assembly according to the embodiment of the invention.

Fig. 6 is a schematic view illustrating the slide rail assembly in a retracted state according to the embodiment of the present invention.

Fig. 7 is an enlarged view of area a of fig. 6, showing the second rail being blocked in a retracted position by a working member of the lock device, and an operating member being in a first position.

FIG. 8 is a schematic view showing that the second rail can be released from the blocking of the workpiece by the operating member being displaced to a second position.

Fig. 9 shows a schematic view of the second rail being capable of moving in an opening direction.

Fig. 10 shows a schematic view of the second rail continuing to move in the opening direction.

Fig. 11 shows a schematic view of the second rail further moving toward the opening direction.

Fig. 12 shows a schematic view of the second rail moving in a retracting direction.

Fig. 13 is a schematic view illustrating the second rail continuing to move in the retracting direction.

Detailed Description

As shown in fig. 1 and fig. 2, a slide rail assembly 20 according to an embodiment of the present invention includes a first rail 22 and a second rail 24 that are movable relative to the first rail 22. The first rail 22 is mountable to a front post 30a and a rear post 30b of a frame via a front bracket 26 and a rear bracket assembly 28 (hereinafter bracket assembly 28). The principle of mounting the front bracket 26 and the bracket assembly 28 to the rack is substantially the same, for example, the bracket assembly 28 includes a longitudinal wall 32 and at least one mounting member 34 adjacent the longitudinal wall 32. Preferably, the bracket assembly 28 further includes an end wall 36 bent substantially perpendicular to the longitudinal wall 32, the at least one mounting member 34 is disposed on the end wall 36, and the at least one mounting member 34 is configured to be mounted to the at least one hole of the rear pillar 30 b.

As shown in fig. 2 and 3, the first rail 22 has a front portion f1 and a rear portion r 1. The front carriage 26 and the carriage assembly 28 are attached to the front portion f1 and the rear portion r1 of the first rail 22, respectively, and may be considered integral with the first rail 22. Further, the bracket device 28 is connected (e.g., fixedly secured) to the first rail 22 adjacent the rear portion r1 of the first rail 22. Preferably, the slide assembly 20 further includes a third rail 38 movably mounted to the first rail 22, and the second rail 24 movably mounted to the third rail 38. The second rail 24 has a front portion f2 and a rear portion r 2.

The slide assembly 20 further includes a contact structure 40 and a lock device 42. The contact structure 40 is disposed adjacent to one of the rear portion r1 of the first rail 22 and the rear portion r2 of the second rail 24, and here, the contact structure 40 is disposed adjacent to the rear portion r2 of the second rail 24; on the other hand, the lock device 42 is disposed adjacent to the other one of the rear portion r1 of the first rail 22 and the rear portion r2 of the second rail 24, and the lock device 42 is disposed adjacent to the bracket 28 of the rear portion r1 of the first rail 22, but the embodiment is not limited thereto.

Preferably, the second rail 24 further comprises a release structure 44, and the release structure 44 is disposed on the second rail 24 and adjacent to the rear portion r2 of the second rail 24 (as shown in fig. 3).

Preferably, the contact structure 40 and the release structure 44 are protrusions, but are not limited in implementation.

Preferably, the contact structure 40 comprises a stop feature 46 and a guide feature 48 at the front end and the rear end of the contact structure 40, respectively, wherein the stop feature 46 has a transverse height relative to the longitudinal length of the second rail 24, and the guide feature 48 comprises an inclined surface or an arc surface; on the other hand, the releasing structure 44 includes a first guiding section 50 and a second guiding section 52 respectively located at the front end and the rear end of the releasing structure 44. The first guiding section 50 and the second guiding section 52 both include an inclined surface or an arc surface.

As shown in fig. 4 and 5, the lock device 42 is disposed on the bracket device 28 of the first rail 22. The lock device 42 includes a working member 54. Preferably, the lock assembly 42 further includes an operating member 56 and a base 58.

The longitudinal wall 32 of the carriage assembly 28 of the first rail 22 has a first side L1 and a second side L2 that are oppositely located. The first side L1 is a side adjacent to the third rail 38 (or the second rail 24, the second rail 24 is not shown in fig. 4 and 5). The base 58 is connected to the second side L2.

Preferably, the base 58 and the longitudinal wall 32 of the bracket device 28 have a space H (e.g., an opening as shown in fig. 4) corresponding to each other, and the space H communicates with the first side L1 and the second side L2 of the longitudinal wall 32 of the bracket device 28.

Preferably, the base 58 is provided with at least one lug 60, such as two lugs 60, and the two lugs 60 extend from the second side L2 to the first side L1 through the space H.

Preferably, the working member 54 is movable relative to the first rail 22, here, for example, the working member 54 is pivoted to the at least one lug 60 of the base 58 by a shaft 62, so that the working member 54 is located at the first side L1 and corresponds to the space H. The working member 54 has a first portion 55a and a second portion 55b, and the shaft 62 is located between the first portion 55a and the second portion 55 b.

Preferably, the lock device 42 further includes a resilient feature 64 for providing a resilient force to the operating member 54, and the operating member 54 is maintained in a blocking state S1 (shown in FIG. 5) in response to the resilient force of the resilient feature 64.

Preferably, the elastic feature 64 has a first elastic section 65a, a second elastic section 65b and a mounting section 65c located between the first elastic section 65a and the second elastic section 65 b. Wherein the mounting section 65c is mounted to the shaft 62, the first resilient section 65a is configured to contact the first portion 55a of the working member 54, and the second resilient section 65b is configured to contact the base 58 adjacent to one of the two lugs 60. The resilient feature 64 is illustrated as a torsion spring, but is not limited in implementation.

Preferably, the operating member 56 is movable relative to the operating member 54. Further, the operating member 56 is movably mounted to the base 58. The operating member 56 includes a driving portion 66, and the driving portion 66 extends from the second side L2 of the longitudinal wall 32 of the bracket device 28 through the space H and toward the working member 54 such that the driving portion 66 is adjacent between the first portion 55a and the second portion 55b of the working member 54.

Preferably, the operating member 56 includes a base portion 68 and an operating portion 70 that is bent relative to the base portion 68. The driving portion 66 is disposed on the base portion 68.

Preferably, the base 58 has a predetermined feature 72 (e.g., the wall of a through hole 73, as shown in FIG. 4), and the operating member 56 is provided with a resilient arm 74 (as shown in FIG. 4). Specifically, the resilient arm 74 includes a connecting portion 76, at least one latching portion (e.g., a first latching portion 78a and a second latching portion 78b), an arm portion 80 disposed between the connecting portion 76 and the at least one latching portion, and a first limiting feature 81 extending laterally from the arm portion 80. The connecting portion 76 is connected to (e.g., fixedly connected to) the base portion 68 of the operating member 56.

Preferably, the base portion 68 of the operating member 56 has a first corresponding feature 82 and a second corresponding feature 84. The first detent portion 78a of the resilient arm 74 can penetrate into the first corresponding feature 82, and the second detent portion 78b and the first limiting feature 81 of the resilient arm 74 can penetrate into the second corresponding feature 84, so that at least one of the

detent portions

78a, 78b and the first limiting feature 81 of the resilient arm 74 face the base 58. Wherein the at least one detent (e.g., a first detent 78a and a second detent 78b) can be configured to mate with the predetermined feature 72 of the base 58, and the first retention feature 81 is further mounted to a second retention feature 86 (e.g., a bounded longitudinal guide hole or slot) of the base 58, and the longitudinal dimension of the first retention feature 81 is less than the longitudinal dimension of the second retention feature 86.

Preferably, the first and second corresponding features 82, 84 are longitudinal holes. The longitudinal length of the second corresponding feature 84 is longer than the longitudinal length of the first corresponding feature 82, and the longitudinal length of the second corresponding feature 84 is substantially the same as the longitudinal length of the second limiting feature 86, but the implementation is not limited thereto.

Preferably, one of the operating member 56 and the base 58 is provided with at least one longitudinal guiding portion 89 (as shown in fig. 4), and here, the base 58 is provided with a plurality of longitudinal guiding portions 89 for example, but the implementation is not limited. Further, the longitudinal guiding portions 89 are used for supporting the operating member 56, and the operating member 56 can be longitudinally displaced relative to the base 58 through the longitudinal guiding portions 89.

Preferably, the operating portion 70 of the operating member 56 extends from the second side L2 to the first side L1 of the longitudinal wall 32 of the bracket device 28 through a through opening 87 of the longitudinal wall 32 of the bracket device 28 (as shown in fig. 4).

Preferably, the lock device 42 further includes a resilient member 88 disposed between the base 58 and the operating member 56 (shown in FIG. 4). Here, the base 58 is provided with a first connecting feature 90, the operating member 56 is provided with a second connecting feature 92, and the elastic member 88 is a spring installed between the first connecting feature 90 and the second connecting feature 92, for example, but not limited in implementation.

As shown in fig. 6 and 7, the first rail 22 can be mounted to the rear pillar 30b by a mounting member 34 of the bracket device 28 and to the front pillar 30a by another mounting member 35 of the front bracket 26. The slide rail assembly 20 can be in a retracted state, and the second rail 24 is in a retracted position R relative to the first rail 22.

Further, the operating member 54 can be maintained in the blocking state S1 in response to the elastic force of (the first elastic segment 65a of) the elastic feature 64. When the second rail 24 is in the retracted position R relative to the first rail 22, the first portion 55a of the operating member 54 in the blocking state S1 can block the blocking feature 46 of the contact structure 40 to prevent the second rail 24 from being longitudinally displaced relative to the first rail 22 in an opening direction D1 from the retracted position R. On the other hand, the operating member 56 is in a first position P1 relative to the base 58. When the operating element 56 is in the first position P1, at least one latching portion (e.g., the first latching portion 78a) of the resilient arm 74 of the operating element 56 abuts against the sidewall of the base 58, so that the resilient arm 74 accumulates a predetermined resilient force, and the at least one latching portion (e.g., the first latching portion 78a) and the predetermined feature 72 of the base 58 have a predetermined longitudinal distance from each other. Preferably, the driving portion 66 is located at substantially the same longitudinal level as the second portion 55b of the working member 54 in the blocking state S1. Preferably, the front end and the rear end of the driving portion 66 have guiding surfaces, such as inclined surfaces or curved surfaces.

As shown in fig. 7 and 8, when the operating member 54 is in an unblocked state S2, the first portion 55a of the operating member 54 fails to block the blocking feature 46 of the contact structure 40 to allow the second rail 24 to be displaced relative to the first rail 22 from the retracted position R toward the opening direction D1. For example, a user can apply a force F to the operating portion 70 of the operating member 56 to longitudinally displace the operating member 56 from the first position P1 (shown in fig. 7) in the opening direction D1 to a second position P2 (shown in fig. 8), and the operating member 56 contacts the second portion 55b of the working member 54 through the driving portion 66 to drive the working member 54 to switch (e.g., pivot) from the blocking state S1 to the unblocking state S2 (shown in fig. 8), so that the first portion 55a of the working member 54 fails to block the blocking feature 46 of the contact structure 40.

In addition, when the operating element 56 is located at the second position P2 relative to the base 58, at least one latching portion (e.g., the first latching portion 78a) of the resilient arm 74 can latch to the predetermined feature 72 of the base 58 in response to the resilient arm 74 releasing the predetermined resilient force, thereby keeping the operating element 56 at the second position P2. At this time, the elastic member 88 accumulates a return elastic force K toward a retracting direction opposite to the opening direction D1. On the other hand, the driving portion 66 of the operating member 56 in the second position P2 can support the second portion 55b of the operating member 54 (as shown in FIG. 8), so that the operating member 54 can remain in the unblocking state S2, at which time the resilient feature 64 accumulates a resilient force.

As shown in fig. 8, 9 and 10, when the second rail 24 is displaced from the retracted position R to the opening direction D1 relative to the first rail 22, the second rail 24 is contacted with the first limiting feature 81 of the elastic arm 74 through the first guiding section 50 of the releasing structure 44, so as to drive the arm portion 80 of the elastic arm 74, and release at least one of the locking portions (e.g., the first locking portion 78a) of the elastic arm 74 from the predetermined feature 72 of the base 58.

As shown in fig. 10 and 11, when at least one latching portion (e.g., the first latching portion 78a) of the elastic arm 74 is released from the predetermined feature 72 of the base 58, the operating member 56 can return from the second position P2 to the first position P1 in response to the elastic force of the elastic member (e.g., the return elastic force K), and the driving portion 66 of the operating member 56 no longer supports the second portion 55b of the working member, so that the working member 54 can be maintained in the blocking state S1 again in response to the elastic feature 64 releasing the elastic force. It should be noted that the second rail 24 can be further displaced to an extended position in the opening direction D1 relative to the first rail 22, so that the slide assembly is in an extended state.

As shown in fig. 12 and 13, during the displacement of the second rail 24 relative to the first rail 22 from the extended position to the retracted position D2, the second rail 24 can pass over the working member 54 through the guiding feature 48 to return to the retracted position R.

Specifically, during the displacement of the second rail 24 in the retracting direction D2, the guiding feature 48 of the contact structure 40 contacts the working member 54 in the blocking state S1 (as shown in fig. 12) to generate a force, such that the working member 54 pivots no longer in the blocking state S1 (as shown in fig. 13) in response to the force, and the elastic feature 64 slightly accumulates an elastic force until, when the second rail 24 is in the retracted position R (as shown in fig. 7) relative to the first rail 22, the working member 54 is in the blocking state S1 in response to the elastic force released by the elastic feature 64, such that the first portion 55a of the working member 54 can block the blocking feature 46 of the contact structure 40, so as to prevent the second rail 24 from being longitudinally displaced relative to the first rail 22 again from the retracted position R in the opening direction D1.

From the above description, it can be seen that the enhanced efficacy and advantages of the present invention are:

a. the lock device 42 and the contact structure 40 are disposed at the rear of the two rails adjacent to the rail assembly 20, so that any person standing in front of the rail assembly 20 can be prevented from freely unlocking the lock device 42 from the contact structure 40 of the second rail 24, compared with the prior art. In other words, with the sliding track assembly 20 disclosed in the present embodiment, the user must walk to the rear of the sliding track assembly 20 to unlock the locking mechanism of the locking device 42 to the contact structure 40 of the second rail 24.

b. The operating member 56 is retained in the second position P2 by the resilient arm 74 snapping against the predetermined feature 72 of the base 58 such that the operating member 54 is supported by the operating member 56 and retained in the unblocked state S2. Once the resilient arm 74 is released, the operating member 56 can return from the second position P2 to the first position P1 in response to the resilient force of the resilient member 88, and the operating member 54 returns from the unblocked state S2 to the blocked state S1.

c. When the second rail 24 is returned to the retracted position R in the retracting direction D2 with respect to the first rail 22 each time, the working member 54 can be in the blocking state S1 to lock the second rail 24 at the retracted position R.

Although the present invention has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the above embodiments are illustrative only, and various equivalent changes and modifications may be made without departing from the spirit of the present invention, and therefore, it is intended to cover in the appended claims all such changes and modifications as fall within the true spirit of the invention.

Claims

1. A slide rail assembly comprises a first rail, a second rail, a contact structure and a locking device, wherein the first rail is provided with a front part and a rear part; the second rail can move relative to the first rail, the second rail has a front part and a back part, and the second rail is characterized in that:

the contact structure is arranged at the rear part of the adjacent second rail; and

the lock device is disposed at a rear portion of the adjacent first rail, and the lock device includes:

a workpiece being capable of being in one of a blocked state and an unblocked state;

a base having a predetermined characteristic; and

an operating member movable relative to the operating member, the operating member being movably mounted to the base, the operating member including a drive portion and a resilient arm;

when the second rail is in a folding position relative to the first rail, the contact structure can be blocked by the workpiece in the blocking state, so that the second rail is prevented from moving from the folding position to an opening direction relative to the first rail;

when the workpiece is in the unblocked state, the workpiece fails to block the contact structure so as to allow the second rail to move from the closed position to the opening direction relative to the first rail;

when the operating member moves from a first position to a second position, the operating member can drive the workpiece to be switched from the blocking state to the unblocking state through the driving portion, the driving portion is used for supporting the workpiece to be kept in the unblocking state, and the operating member can be clamped to the preset feature through at least one clamping portion of the elastic arm to keep the operating member in the second position.

2. The slide rail assembly of claim 1 wherein the lock device further comprises a resilient feature for providing a spring force to the workpiece.

3. The slide rail assembly of claim 2 wherein the lock assembly further comprises a resilient member disposed between the base and the operator, and the second rail further comprises a release structure; when the second rail moves from the retracted position to the opening direction relative to the first rail, the second rail can drive the elastic arm through the releasing structure, so that at least one clamping part of the elastic arm is released from the preset characteristic of the base, the operating element can return to the first position from the second position in response to the elastic force of the elastic element, the driving part of the operating element does not support the operating element, and the operating element can keep in the blocking state in response to the elastic force of the elastic characteristic.

4. The slide rail assembly of claim 3 wherein the contact structure comprises a guide feature; when the second rail moves from an extending position to a folding position relative to the first rail in a folding direction, the second rail can pass over the working piece through the guide feature and return to the folding position.

5. The slide rail assembly of claim 1 wherein the base is provided with at least one lug and the working member is pivotally connected to the at least one lug by a shaft.

6. The slide rail assembly of claim 3 wherein the lock device is disposed adjacent a bracket device at the rear of the first rail, the bracket device including a longitudinal wall and at least one mounting member adjacent the longitudinal wall; the base is connected to the longitudinal wall, one of the operating part and the base is provided with at least one longitudinal guide part, and the operating part can be longitudinally displaced from the first position to the second position relative to the base through the at least one longitudinal guide part.

7. A slide rail assembly comprises a first rail, a second rail, a contact structure and a locking device, wherein the second rail can move relative to the first rail, characterized in that:

a workpiece movable relative to the first rail in one of a blocking state and an unblocking state;

a base having a predetermined characteristic; and

when the workpiece is in the unblocked state, the workpiece cannot block the contact structure to allow the second rail to move from the closed position to the opening direction relative to the first rail;

8. The slide rail assembly of claim 7 wherein the lock device further comprises a resilient feature for providing a spring force to the workpiece.

9. The slide rail assembly of claim 8 wherein the lock assembly further comprises a resilient member disposed between the base and the operator, and the second rail further comprises a release structure; when the second rail moves from the retracted position to the opening direction relative to the first rail, the second rail can drive the elastic arm through the releasing structure, so that at least one clamping part of the elastic arm is released from the preset characteristic of the base, the operating element can return to the first position from the second position in response to the elastic force of the elastic element, the driving part of the operating element does not support the operating element, and the operating element can keep in the blocking state in response to the elastic force of the elastic characteristic.

10. The slide rail assembly of claim 9 wherein the contact structure comprises a guide feature; when the second rail moves from an extending position to a folding position relative to the first rail in a folding direction, the second rail can pass over the working piece through the guide feature and return to the folding position.

11. The slide rail assembly of claim 7 wherein the base is provided with at least one lug and the working member is pivotally connected to the at least one lug by a shaft.

12. The slide rail assembly of claim 7 wherein the lock device is disposed adjacent a bracket device at the rear of the first rail, the bracket device including a longitudinal wall and at least one mounting member adjacent the longitudinal wall; the base is connected to the longitudinal wall, one of the operating part and the base is provided with at least one longitudinal guide part, and the operating part can be longitudinally displaced from the first position to the second position relative to the base through the at least one longitudinal guide part.