CN111904186B

CN111904186B - Sliding rail assembly

Info

Publication number: CN111904186B
Application number: CN201910375892.6A
Authority: CN
Inventors: 陈庚金; 杨顺和; 游凯文; 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: 2019-05-07
Filing date: 2019-05-07
Publication date: 2022-03-04
Anticipated expiration: 2039-05-07
Also published as: CN111904186A

Abstract

The present invention relates to a slide rail assembly, which includes a first rail, a latching piece, a second rail and a locking piece. The latching member is disposed on the first rail and includes an elastic portion; the second rail can be displaced relative to the first rail; the locking member is movably mounted on the second rail; when the second rail is relative to the first rail When moving from a first position to a first direction to a second position, the locking member is used for locking the elastic portion of the latching member to prevent the second rail from being displaced from the second position to a second direction .

Description

Sliding rail assembly

Technical Field

The present invention relates to a slide rail, and more particularly, to a slide rail assembly having a locking mechanism between two slide rails, which can be applied in a narrow space and can be conveniently operated to release the locking mechanism of the slide rail assembly.

Background

For example, U.S. patent publication No. US10,041,535B2 discloses a slide rail assembly including a first rail, a second rail, a third rail, a locking mechanism, a blocking feature, and an operating member. The second rail can lock the blocking feature of the first rail through the locking mechanism when in an extended position (as shown in fig. 10 of the patent publication), and the locking member of the locking mechanism can be driven by the operating member being forced to release the locking relationship of the locking mechanism to the blocking feature of the first rail. Wherein the blocking feature is, for example, a protruding structure and is fixedly attached to or formed on the first rail.

However, with the different market demands, how to develop a different slide rail product becomes an issue that cannot be ignored.

Disclosure of Invention

The invention aims to provide a slide rail assembly, which can be conveniently operated in a narrow space to release a locking mechanism of the slide rail assembly.

According to an aspect of the present invention, a sliding rail assembly includes a first rail, a locking member, a second rail and a locking member. The clamping piece is arranged on the first rail and comprises an elastic part; the second rail can move relative to the first rail; the locking piece is movably arranged on the second rail; when the second rail moves from a first position to a second position relative to the first rail in a first direction, the locking member locks the elastic part of the clamping member to prevent the second rail from moving from the second position to a second direction opposite to the first direction.

Preferably, the first rail comprises a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the first rail, and the elastic part of the clamping piece has a height relative to the longitudinal wall of the first rail.

Preferably, the locking member further comprises a first connecting portion and a second connecting portion mounted on the longitudinal wall of the first rail, and the elastic portion is connected between the first connecting portion and the second connecting portion.

Preferably, the locking member further comprises a first guiding portion and a second guiding portion, and two ends of the elastic portion are respectively connected to the first connecting portion and the second connecting portion through the first guiding portion and the second guiding portion.

Preferably, the slide assembly further comprises a synchronization member and a third rail, the synchronization member is movably mounted on the second rail, and the third rail can move relative to the second rail; the third rail can drive the second rail from the first position to the second position through the synchronous piece; when the second rail is driven to a predetermined stroke, the synchronous member is driven by a guiding portion of the elastic portion adjacent to the engaging member to release the synchronous displacement relationship between the third rail and the second rail.

Preferably, the slide rail assembly further comprises an operating member disposed on the second rail; when the second rail is at the second position, the operating element is operated to drive the elastic part of the clamping element, so that the locking element can not lock the elastic part of the clamping element any more.

Preferably, the locking member and the synchronizing member are pivotally connected to the second rail, and the slide rail assembly further includes an elastic member attached to the second rail, the elastic member having a first elastic leg and a second elastic leg for providing elastic force to the locking member and the synchronizing member, respectively.

Preferably, the first rail further comprises a blocking feature, and when the second rail is located at a predetermined position relative to the first rail, the second elastic foot provides an elastic force to the synchronizing member, so that the synchronizing member can be blocked by the blocking feature to prevent the second rail from moving from the predetermined position to the first direction.

Preferably, the third rail has a corresponding feature, and the corresponding feature of the third rail is used to drive the synchronization member to stop the blocking feature.

Preferably, the second rail includes a blocking structure, and the slide rail assembly further includes a working member movably mounted on the third rail, wherein when the second rail is at the second position and the third rail is moved to an extended position relative to the second rail in the first direction, the working member is in a first state and located at one side of the blocking structure to prevent the third rail from moving further in the first direction.

Preferably, the slide assembly further includes a base having a flexible portion for providing a spring force to the workpiece to maintain the first state, and a release member operatively connected to the workpiece for driving the workpiece from the first state to a second state.

According to another aspect of the present invention, a sliding rail assembly includes a first rail, a locking member, a second rail, a locking member, a synchronizing member, and a third rail. The clamping piece is arranged on the first rail and comprises an elastic part and a guide part; the second rail can move relative to the first rail, and the locking piece and the synchronous piece are pivoted to the second rail through the same shaft; the third rail can move relative to the second rail; the third rail can drive the second rail from a first position to a first direction to a second position through the synchronous piece; when the second rail is driven to a preset stroke, the synchronous piece is driven through the guide part of the clamping piece to release the synchronous displacement relation between the third rail and the second rail, and when the second rail reaches the second position, the locking piece is used for locking the elastic part of the clamping piece.

Drawings

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

fig. 1 is a schematic perspective view illustrating a slide rail assembly according to an embodiment of the invention in an extended state.

Fig. 2 is an exploded view of the slide rail assembly according to the embodiment of the invention.

Fig. 3 is an exploded view of a second rail and related rail components of the rail assembly according to the embodiment of the invention.

Fig. 4 is a schematic view of a second rail of the slide rail assembly according to the embodiment of the invention and a combination of the related slide rail parts.

Fig. 5 is a schematic combination view of a second rail of the slide rail assembly and the related slide rail parts according to another aspect of the present invention.

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

Fig. 7 is an enlarged view of the region a of fig. 6.

Fig. 8 is an enlarged view of the region B of fig. 6.

Fig. 9 is an enlarged view of the region C of fig. 6.

Fig. 10 is an enlarged partial view of fig. 6, showing a portion of the third rail not contacting the synchronization member of the second rail.

Fig. 11 is a schematic view showing that the portion of the third rail of the slide rail assembly of the embodiment of the invention has contacted the synchronizing member of the second rail, so that the second rail and the third rail can synchronously displace relative to the first rail in the first direction.

Fig. 12 is a schematic view illustrating that the second rail and the third rail of the slide rail assembly of the embodiment of the invention are displaced relative to the first rail in the first direction, and the synchronous displacement relationship between the second rail and the third rail is released.

Fig. 13 is an enlarged view of the region a of fig. 12.

Fig. 14 is an enlarged view of the region B of fig. 12.

Fig. 15 is a schematic view illustrating that the second rail of the slide rail assembly of the embodiment of the invention is at a position relative to the first rail, and the third rail can move in the first direction relative to the second rail.

Fig. 16 is an enlarged view of the region a of fig. 15.

FIG. 17 is a schematic diagram of the slide rail assembly of the present invention with the second rail in a position relative to the first rail and the operating member being operable to cause the detent release feature to contact the detent member.

Fig. 18 is an enlarged view of the region a of fig. 17.

FIG. 19 is a schematic view of an operating member of a slide rail assembly according to an embodiment of the invention being operated such that the releasing feature drives the engaging member to release the locking relationship between the second rail and the first rail.

Fig. 20 is a schematic view illustrating the second rail and the third rail of the slide rail assembly of the embodiment of the invention being folded to a predetermined stroke in the second direction relative to the first rail.

Fig. 21 is a schematic view illustrating that the second rail of the slide rail assembly of the embodiment of the invention is located at a second position relative to the first rail, and the third rail is displaced in the first direction relative to the second rail.

Fig. 22 is a schematic view illustrating that the second rail of the slide rail assembly according to the embodiment of the invention is located at the second position relative to the first rail, and the third rail continues to move in the first direction relative to the second rail.

Fig. 23 is a schematic view illustrating the second rail of the slide rail assembly in the second position relative to the first rail and the third rail in the extended position relative to the second rail according to the embodiment of the invention.

Fig. 24 is a schematic view showing that the second rail of the slide rail assembly of the embodiment of the invention is at the second position relative to the first rail, and a working member of the third rail is released from a blocking structure of the second rail, so that the third rail can be further displaced from the extended position in the first direction.

Fig. 25 is a schematic view of the second rail of the slide rail assembly of the embodiment of the invention in the second position relative to the first rail, and the third rail is detached from the second rail.

Fig. 26 is a schematic view illustrating the slide rail assembly according to the embodiment of the present invention applied in a narrow space and in an extended state.

Fig. 27 is a schematic view illustrating the slide rail assembly according to the embodiment of the present invention applied in the narrow space, and the second rail is folded in the second direction relative to the first rail, so as to detach the third rail from the second rail.

Detailed Description

As shown in fig. 1 and fig. 2, the slide rail assembly 20 of the embodiment of the invention includes a first rail 22, a locking member 24, a second rail 26 and a locking member 28. Preferably, the device further comprises a synchronization member 30, a third rail 32 and an operation member 34. Wherein the second rail 26 is movably mounted between the first rail 22 and the third rail 32.

The first rail 22 has a front end 22a and a rear end 22 b. Further, the first rail 22 includes a first wall 36a, a second wall 36b, and a longitudinal wall 38 connected between the first wall 36a and the second wall 36b of the first rail 22. The first wall 36a, the second wall 36b and the longitudinal wall 38 of the first rail 22 together define a first channel for the second rail 26 to mount. Preferably, the first rail 22 is arranged with a rear stop 40 and a front stop 42 adjacent the rear end 22b and the front end 22a, respectively, for limiting the displacement of the second rail 26 relative to the first rail 22 within a limited range. Preferably, the first rail 22 further includes a stop feature 44, where the stop feature 44 is illustrated as a protrusion, but is not limited in implementation, and the stop feature 44 includes a stop 44 a.

The latch 24 is disposed on the longitudinal wall 38 of the first rail 22. The latch 24 includes a resilient portion 46. Preferably, the latch 24 further includes a first connecting portion 48a and a second connecting portion 48b mounted (e.g., clamped) on the longitudinal wall 38 of the first rail 22, and the elastic portion 46 is connected between the first connecting portion 48a and the second connecting portion 48 b. Preferably, the locking member 24 further includes a first guiding portion 50a and a second guiding portion 50b, and two ends of the elastic portion 46 are respectively connected to the first connecting portion 48a and the second connecting portion 48b through the first guiding portion 50a and the second guiding portion 50 b. Preferably, the first connecting portion 48a and the second connecting portion 48b are fixedly connected to the longitudinal wall 38 of the first rail 22 in an abutting manner; the first guiding portion 50a and the second guiding portion 50b are inclined planes or arc surfaces.

The second rail 26 is movably mounted between the first rail 22 and the third rail 32. The second rail 26 is longitudinally displaceable relative to the first rail 22. The second rail 26 has a front end 26a and a rear end 26 b. Further, the second rail 26 includes a first wall 52a, a second wall 52b, and a longitudinal wall 54 connected between the first wall 52a and the second wall 52b of the second rail 26. The first wall 52a, the second wall 52b and the longitudinal wall 54 of the second rail 26 together define a second channel for the third rail 32 to mount.

The locking member 28 and the synchronizing member 30 are movably mounted on the second rail 26 (see fig. 3, 4 and 5). Here, the locking member 28 and the synchronizing member 30 are pivotally connected to the second rail 26, for example, the locking member 28 and the synchronizing member 30 are pivotally connected to a longitudinal wall 54 of the second rail 26 through a same shaft 56. The shaft 56 faces the first wall 52a and the second wall 52b of the second rail 26 at two ends, and the longitudinal wall 54 of the second rail 26 further has an opening 58 communicating with two sides of the second rail 26. The locking member 28 and the synchronizing member 30 are positioned relative to the opening 58. Wherein, both ends of the locking piece 28 are respectively provided with a locking part 28a and a releasing part 28b, and the middle part of the locking piece 28 is pivoted with the shaft 56. The two ends of the synchronization member 30 are respectively provided with a first contact portion 30a and a second contact portion 30b, and the middle portion of the synchronization member 30 is also pivotally connected to the shaft 56. Preferably, the slide assembly 20 further includes an elastic member 60 attached to the second rail 26, the elastic member 60 having a first elastic leg 60a and a second elastic leg 60b for providing elastic force to the locking member 28 and the synchronizing member 30, respectively. Preferably, the elastic member 60 is fixedly connected to the longitudinal wall 54 of the second rail 26, and the first elastic leg 60a and the second elastic leg 60b are tilted at a predetermined angle relative to the longitudinal wall 54. Preferably, the first elastic leg 60a provides an elastic force to abut against a portion of the locking member 28 and is adjacent to the releasing portion 28b, and the second elastic leg 60b provides an elastic force to abut against a portion of the synchronizing member 30 and is adjacent to the second contacting portion 30 b.

The third rail 32 is longitudinally displaceable relative to the second rail 26. The third rail 32 has a front end 32a and a rear end 32 b. Further, the third rail 32 includes a first wall 62a, a second wall 62b, and a longitudinal wall 64 connected between the first wall 62a and the second wall 62b of the third rail 32. Further, the third rail 32 has a corresponding feature 66. The corresponding feature 66 is configured to cooperate with the synchronizer 30. The corresponding feature 66 is illustrated as a protrusion, but is not limited in implementation.

The operating member 34 is disposed on the second rail 26. Preferably, the operating member 34 is movably mounted to a side of the longitudinal wall 54 of the second rail 26 (e.g., movably mounted to a side facing the first rail 22). Preferably, the operating member 34 has a longitudinal length, and the operating member 34 includes a disengaging feature 34a and an operating portion 34b, the operating portion 34b and the disengaging feature 34a having a predetermined longitudinal distance from each other. The detent release feature 34a is, for example, a protrusion, but is not limited to the embodiment. Preferably, the operating member 34 and the second rail 26 are longitudinally movable relative to each other by a plurality of mounting members cooperating with a plurality of longitudinal guide grooves. For example, the operating member 34 can be moved within a limited range relative to the second rail 26 by a first mounting member 35a passing through a portion of a first longitudinal guide slot 37a of the operating member 34 and connecting to the second rail 26 (this portion can be seen in fig. 9), and by a second mounting member 35b passing through a portion of a second longitudinal guide slot 37b of the second rail 26 and connecting to the operating member 34 (this portion can be seen in fig. 7).

Preferably, the slide rail assembly 20 further includes a reinforcement member 67, and the reinforcement member 67 is connected to the longitudinal wall 54 of the second rail 26. Preferably, the reinforcing member 67 has at least one protrusion 67a correspondingly passing through the at least one mounting opening 65 of the operating member 34, and the at least one protrusion 67a is connected (e.g., fixedly connected) to the longitudinal wall 54 of the second rail 26. Wherein a longitudinal length of the at least one projection 67a is less than a longitudinal length of the at least one mounting opening 65. According to this configuration, the reinforcement 67 contributes to stability or reliability when the operation member 34 is operated, in addition to reinforcing the structural strength of the second rail 26.

Preferably, the slide assembly 20 further includes a first operating member 68, a second operating member 70, a base 72, a first release member 74 and a second release member 76.

The first operating member 68 and the second operating member 70 are movably connected to the longitudinal wall 64 of the third rail 32, respectively, and here, the first operating member 68 and the second operating member 70 are pivoted to the longitudinal wall 64 of the third rail 32, respectively; on the other hand, the base 72 includes a first flexible portion 72a and a second flexible portion 72b for providing elastic force to the first working member 68 and the second working member 70, respectively, so that the first working member 68 and the second working member 70 are maintained in a first state (position). Further, the first release member 74 and the second release member 76 operatively connect the first working member 68 and the second working member 70, respectively, for enabling operative change of the first working member 68 and the second working member 70 from the first state to another state (position).

As shown in fig. 6, the slide rail assembly 20 is in a retracted state. Further, the second rail 26 is folded relative to the first rail 22 to be located at a first position P1 (for example, a folded position), and the third rail 32 is folded relative to the second rail 26.

The elastic portion 46 of the locking element 24 has a height K1 with respect to the longitudinal wall 38 of the first rail 22, and the elastic portion 46 of the locking element 24 has a locking section 46a (this portion can be referred to as fig. 8), and the locking section 46a is, for example, a hole wall of a hole H (or a groove), but is not limited in implementation. The first guiding portion 50a and the second guiding portion 50b are adjacent to the elastic portion 46.

As shown in fig. 6 and 10, the locking member 28 and the synchronizing member 30 are pivotally connected to the second rail 26 via the shaft 56. The first elastic leg 60a of the elastic member 60 provides an elastic force to abut against a portion of the locking member 28 and adjacent to the releasing portion 28b, and the locking portion 28a of the locking member 28 is offset from the blocking feature 44 of the first rail 22; on the other hand, the second elastic leg 60b of the elastic member 60 provides an elastic force to abut against a portion of the synchronization member 30 and is adjacent to the second contact portion 30b, so that the first contact portion 30a of the synchronization member 30 tilts relative to the blocking feature 44 of the first rail 22 and is in a staggered state with respect to the blocking feature 44 of the first rail 22.

Further, when the second rail 26 is located at the first position P1 relative to the first rail 22, the rear stop portion 40 of the first rail 22 is located at the rear end 26b of the second rail 26, and the release feature 34a of the operating member 34 and the first guiding portion 50a of the locking member 24 are spaced apart from each other by a predetermined longitudinal distance. In addition, when the second rail 26 is at the first position P1 relative to the first rail 22 and the third rail 32 is folded relative to the second rail 26, the corresponding feature 66 of the third rail 32 can press an extension portion 30c of the synchronization member 30 adjacent to the second contact portion 30b, so as to help the first contact portion 30a of the synchronization member 30 and the blocking feature 44 of the first rail 22 to be maintained in the staggered state, preferably, the extension portion 30c and the second contact portion 30b have a height difference, and furthermore, the corresponding feature 66 of the third rail 32 is at a position corresponding to the second contact portion 30b of the synchronization member 30.

As shown in fig. 11, the third rail 32 can move the second rail 26 from the first position P1 to a first direction D1 (e.g., the opening direction) toward a second position through the synchronization element 30. In other words, the second rail 26 can be displaced from the first position P1 to the first direction D1 relative to the first rail 22. Further, when the third rail 32 is displaced in the first direction D1, the corresponding feature 66 of the third rail 32 can abut against the second contact portion 30b of the synchronization member 30, so that the third rail 32 and the second rail 26 can be synchronously displaced in the first direction D1 relative to the first rail 22.

As shown in fig. 12, when the second rail 26 is driven by the third rail 32 to synchronously move with the third rail 32 to a predetermined stroke, the synchronous member 30 is driven by the guiding portion (e.g., the first guiding portion 50a) of the locking member 24 to release the synchronous displacement relationship between the third rail 32 and the second rail 26. For example, the synchronizing member 30 can be driven to swing at an angle (see fig. 14) by the contact between the first contact portion 30a and the first guiding portion 50a of the locking member 24, so that the second contact portion 30b of the synchronizing member 30 no longer abuts against the corresponding feature 66 of the third rail 32 (see fig. 13), and the third rail 32 and the second rail 26 are no longer synchronously displaced. The second elastic leg 60b of the elastic element 60 is in a state of accumulating an elastic force in response to the synchronous element 30 swinging by the angle (see fig. 13). On the other hand, the locking portion 28a of the locking element 28 climbs up the first guiding portion 50a of the latching member 24 and approaches the latching section 46a of the elastic portion 46 of the latching member 24 (this portion can be seen in fig. 14). Here, the locking element 28 swings by an angle at this time, and the first elastic leg 60a of the elastic element 60 is in a state of accumulating an elastic force in response to the locking element 28 swinging by the angle (this part can be referred to as fig. 13).

As shown in fig. 15, when the second rail 26 is displaced relative to the first rail 22 in the first direction D1 to reach the second position P2, the locking member 28 is configured to lock the elastic portion 46 of the locking member 24, so as to prevent the second rail 26 from being displaced from the second position P2 in a second direction (e.g., a retracting direction) opposite to the first direction D1. For example, in response to the first elastic leg 60a of the elastic member 60 releasing the elastic force, the locking member 28 can enter the hole H of the latching member 24 through the locking portion 28a and lock the latching section 46a of the elastic portion 46 of the latching member 24, and at this time, the second rail 26 cannot be folded in the second direction relative to the first rail 22 (see fig. 16). On the other hand, the third rail 32 can be displaced relative to the second rail 26 in the first direction D1 to an extended position (this portion can be seen in fig. 17).

As shown in fig. 15, 17 and 18, when the locking relationship between the locking member 28 and the elastic portion 46 of the latch 24 is to be released, the user can operate the operating member 34, for example, apply a force F (shown in fig. 15) to the operating portion 34b of the operating member 34, so that the operating member 34 moves longitudinally relative to the second rail 26, and the releasing feature 34a of the operating member 34 can contact the first guiding portion 50a of the latch 24 (shown in fig. 17 and 18), until the operating member 34 continues to be forced, so that the releasing feature 34a of the operating member 34 presses the first guiding portion 50a of the latch 24, so that the elastic portion 46 of the latch 24 is driven to deform elastically from the height K1 to another lower height K2 (which can be referred to fig. 19) in response to the pressing, so that the latching section 46a of the elastic portion 46 of the latch 24 is disengaged from the locking portion 28a of the locking member 28, so that the locking member 28 no longer locks the elastic portion 46 of the latch 24. In other words, the second rail 26 can be displaced from the second position P2 to the second direction.

It should be noted that when the second rail 26 is in the second position P2 relative to the first rail 22, the user can apply force to the operating member 34, to release the locking relationship between the elastic portion 46 of the latch 24 and the locking member 28, in another mode of operation, as shown in fig. 17, when the third rail 32 is in the extended position relative to the second rail 26, a user can also displace the third rail 32 in a second direction (e.g., a retracting direction) opposite to the first direction D1, so that the rear end 32b of the third rail 32 is released from the releasing portion 28b of the locking member 28, for driving the locking part 28a of the locking member 28 to disengage from the latching section 46a of the elastic part 46 of the latching member 24, the purpose of the locking mechanism is to release the locking relationship between the elastic portion 46 of the latch 24 and the locking member 28, so that the second rail 26 can be displaced from the second position P2 to the second direction relative to the first rail 22.

As shown in fig. 20, the stop feature 44 preferably further comprises a guiding section 44b, such as a slope or a curved surface, disposed on the opposite side of the stop portion 44 a. When the second rail 26 is displaced from the second position P2 to a second direction D2 to a predetermined position X approaching the first position P1, the first contact portion 30a of the synchronization member 30 passes over the guiding section 44b in the second direction D2, and the second rail 26 can be stopped by the stopping portion 44a of the stopping feature 44 of the first rail 22 through the first contact portion 30a of the synchronization member 30 in response to the elastic force provided by the second elastic leg 60b of the elastic member 60, so as to prevent the second rail 26 from being displaced from the predetermined position X to the first direction D1 (opening direction) relative to the first rail 22.

As shown in fig. 21, the second rail 26 includes a blocking structure 27 disposed (fixed) adjacent to the front end 26a of the second rail 26. In addition, the first and

second operating members

68 and 70 can be maintained in the first state S1 by the first and second

flexible portions

72a and 72b of the base 72, respectively. When the second rail 26 is at the second position P2 relative to the first rail 22 and the third rail 32 is displaced relative to the second rail 26 in the first direction D1 to a predetermined extension stroke, the second working member 70 contacts a first side L1 of the blocking structure 27.

As shown in fig. 22, when the third rail 32 continues to displace relative to the second rail 26 in the first direction D1, the second operating member 70 can swing from the first state S1 to a second state S2 by an angle through the abutting action of the second operating member 70 and the blocking structure 27 to pass over the first side L1 of the blocking structure 27, wherein the second flexible portion 72b of the base 72 is in a state of accumulating a spring force in response to the second operating member 70 swinging by the angle.

As shown in fig. 23, when the third rail 32 is further displaced to an extended position E in the first direction D1 relative to the second rail 26, the second working member 70 can be restored from the second state S2 to the first state S1 and located on a second side L2 of the blocking structure 27 in response to the second flexible portion 72b of the base 72 releasing the elastic force; on the other hand, the first working member 68 is in the first state S1 and is located on the first side L1 of the barrier structure 27. In other words, the first working member 68 and the second working member 70 are both in the first state S1 and are blocked by the blocking structure 27 and located on both sides of the blocking structure 27 to prevent the third rail 32 from being displaced from the extended position E relative to the second rail 26 in the first direction D1 or the second direction D2. At this time, the slide rail assembly 20 is in an extended state.

As shown in fig. 24, when the third rail 32 is to be displaced from the extended position E to the first direction D1 or the second direction D2 relative to the second rail 26, a user can drive the first operating member 68 to transition from the first state S1 to the second state S2 through the first releasing member 74, so that the third rail 32 can be displaced from the extended position E to the first direction D1 relative to the second rail 26; alternatively, the user can drive the second operating member 70 from the first state S1 to the second state S2 by the second releasing member 76, so that the third rail 32 can be displaced in the second direction D2 relative to the second rail 26 from the extended position E. Here, for example, the third rail 32 can be displaced from the extended position E in the first direction D1 relative to the second rail 26 and disengaged from the second channel of the second rail 26 (see fig. 25). In other words, the third rail 32 can be detached from the second rail 26.

As shown in fig. 26 and 27, when the rail assembly 20 is applied to a working environment 80, the space Y between the working environment 80 and the rail assembly 20 may be too narrow, so that when the rail assembly 20 is in the extended state (e.g. the second rail 26 is at the second position P2 relative to the first rail 22, and the third rail 32 is at the extended position E relative to the second rail 26), the third rail 32 may be difficult to be detached from the extended position E relative to the second rail 26 in the first direction D1, so that in the case of the limited space Y, a user may release the locking relationship between the elastic portion 46 of the latch 24 and the locking member 28 through the operating member 34, for example, to allow the second rail 26 to be displaced or folded relative to the first rail 22 from the second position P2 to the second direction D2 (as shown in fig. 27), for removing the third rail 32 from the carrier 78, thereby facilitating maintenance of the third rail 32, the carrier 78, or associated rail members of the rail assembly 20.

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

(1) the detent 24 can be regarded as a spring plate, which is operated to unlock the second rail 26 from the first rail 22 at the second position P2.

(2) A user may disengage the locking relationship of the second rail 26 to the first rail 22 in the second position P2 by the disengagement feature 34a of the operating member 34; alternatively, the locking relationship between the second rail 26 and the first rail 22 at the second position P2 can be released by the displacement of the third rail 32 relative to the second rail 26 in the second direction D2.

(3) The reinforcing member 67 not only reinforces the structural strength of the second rail 26, but also contributes to the stability or reliability of the operating member 34 when it is operated.

(4) When the second rail 26 is at the predetermined position X relative to the first rail 22, the second elastic leg 66b of the elastic member provides an elastic force to the synchronizing member 30, so that the synchronizing member 30 can be blocked by the blocking feature 44 to prevent the second rail 26 from being displaced from the predetermined position X toward the first direction D1. That is, when the third rail 32 is removed in the first direction D1, the second rail 26 does not extend and displace in the first direction D1, and thus the device can be used in a narrow space.

(5) The third rail 32 is removable from the second rail 26.

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, comprising a first rail, a latching member, a second rail, a locking member, a third rail and an operating member, wherein the second rail can be opposite to the first rail displacement, the third rail can be displaced relative to the second rail, and is characterized in that:

The latching member is disposed on the first rail, and the latching member includes an elastic portion;

the locking member is movably mounted on the second rail; and

the operating member is arranged on the second rail;

Wherein, when the second rail is displaced from a first position to a first direction to a second position relative to the first rail, the locking member is used to lock the elastic portion of the latching member to prevent the second the rail is displaced from the second position to a second direction opposite the first direction;

The latching member and the operating member are disposed between the first rail and the second rail;

When the second rail is in the second position, the operating member is operated to drive the elastic portion of the latching member, so that the locking member no longer locks the elastic portion of the latching member.

2 . The slide rail assembly of claim 1 , wherein the first rail comprises a first wall, a second wall and a longitudinal wall connected to the first wall and the second wall of the first rail. 3 . between the walls, and the elastic portion of the latch has a height relative to the longitudinal wall of the first rail.

3 . The slide rail assembly according to claim 2 , wherein the latching member further comprises a first connecting portion and a second connecting portion mounted on the longitudinal wall of the first rail, and the elastic portion is 3 . Connected between the first connecting portion and the second connecting portion, the latching member further includes a first guide portion and a second guide portion, and both ends of the elastic portion pass through the first guide portion respectively. The lead portion and the second lead portion are connected to the first connecting portion and the second connecting portion.

4 . The slide rail assembly according to claim 3 , further comprising a synchronizing member, the synchronizing member is movably mounted on the second rail; the third rail can pass the synchronizing member to the second rail Driven from the first position to the second position; when the second rail is driven to a predetermined stroke, the synchronizing member is driven by the first guide portion adjacent to the elastic portion of the latching member, for Release the synchronous displacement relationship between the third track and the second track.

5 . The slide rail assembly of claim 4 , wherein the locking member and the synchronizing member are pivotally connected to the second rail, and the slide rail assembly further comprises an elastic member attached to the second rail. 6 . A rail, the elastic piece has a first elastic foot and a second elastic foot to respectively provide elastic force to the locking piece and the synchronizing piece.

6 . The slide rail assembly according to claim 5 , wherein the first rail further comprises a blocking feature, when the second rail is in a predetermined position relative to the first rail, the second elastic force is applied by the second elastic force. 7 . The foot provides spring force to the synchronizing member so that the synchronizing member can be blocked by the blocking feature to prevent the second rail from displacing from the predetermined position to the first direction.

7 . The slide rail assembly of claim 4 , wherein the third rail has a corresponding feature, and the synchronization member is driven by the corresponding feature of the third rail. 8 .

8 . The slide rail assembly of claim 4 , wherein the second rail comprises a blocking structure, and the slide rail assembly further comprises a work piece movably mounted on the third rail, when the When the second rail is in the second position, and the third rail is displaced to an extended position in the first direction relative to the second rail, the working piece is in a first state and is located on one side of the blocking structure, for The third rail is prevented from being displaced in the first direction.

9 . The slide rail assembly of claim 8 , further comprising a base having a flexible portion for providing elastic force to keep the work piece in the first state, and a release piece operable to The working piece is connected, and the releasing piece is used to drive the working piece to switch from the first state to a second state, so as to allow the third rail to be displaced from the extended position to the first direction and unloaded relative to the second rail Down.

10. A slide rail assembly, comprising a first rail, a latching member, a second rail, a locking member, a synchronizing member, a third rail and an operating member, wherein the second rail can be opposed to The first rail is displaced, the third rail is displaceable relative to the second rail, and is characterized in that:

The latching member is disposed on the first rail, and the latching member includes an elastic portion and a guide portion;

The locking member and the synchronizing member are pivotally connected to the second rail through the same axis; and

the operating member is arranged on the second rail;

Wherein, the third rail can drive the second rail from a first position to a first direction toward a second position through the synchronizing member;

Wherein, when the second rail is driven to a predetermined stroke, the synchronizing member is driven by the guide portion of the latching member to release the synchronous displacement relationship between the third rail and the second rail, and when When the second rail reaches the second position, the locking member is used for locking the elastic portion of the latching member;

Wherein, when the second rail is in the second position, the operating member is used to be operated to drive the elastic portion of the latching member, so that the locking member no longer locks the elastic portion of the latching member.

11 . The slide rail assembly of claim 10 , further comprising an elastic member attached to the second rail, the elastic member having a first elastic foot and a second elastic foot to respectively provide elastic force to the second rail. 12 . The locking piece and the synchronizing piece.

12 . The slide rail assembly of claim 11 , wherein the first rail further comprises a blocking feature, when the second rail is in a predetermined position relative to the first rail, the second elastic force is applied by the second elastic force. 13 . The foot provides spring force to the synchronizing member so that the synchronizing member can be blocked by the blocking feature to prevent the second rail from displacing from the predetermined position to the first direction.

13 . The slide rail assembly of claim 12 , wherein the third rail has a corresponding feature, and the synchronization member is driven by the corresponding feature of the third rail. 14 .

14. The slide rail assembly of claim 10, wherein the first rail comprises a first wall, a second wall and a longitudinal wall connected to the first wall and the second wall of the first rail between the walls, and the elastic portion of the latch has a height relative to the longitudinal wall of the first rail.

15 . The slide rail assembly of claim 14 , wherein the latching member further comprises a first connecting portion and a second connecting portion mounted on the longitudinal wall of the first rail, and the elastic portion is 15 . connected between the first connection part and the second connection part.

16 . The slide rail assembly of claim 15 , wherein the latching member further comprises a first guide portion and a second guide portion, and two ends of the elastic portion pass through the first guide portion respectively. 17 . A guide portion and the second guide portion connect the first connecting portion and the second connecting portion.

17. The slide rail assembly of claim 10, wherein the second rail comprises a blocking structure, and the slide rail assembly further comprises a work piece movably mounted on the third rail, when the When the second rail is in the second position, and the third rail is displaced to an extended position in the first direction relative to the second rail, the working piece is in a first state and is located on one side of the blocking structure, for Prevent the third rail from displacing in the first direction; the slide rail assembly also includes a base with a flexible portion for providing elastic force to keep the work piece in the first state, and a release piece operably connected The work piece, the release piece is used for driving the work piece to switch from the first state to a second state.