CN112237345B

CN112237345B - Sliding rail assembly

Info

Publication number: CN112237345B
Application number: CN201910653966.8A
Authority: CN
Inventors: 陈庚金; 杨顺和; 黄建立; 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: 2019-07-19
Filing date: 2019-07-19
Publication date: 2022-04-26
Anticipated expiration: 2039-07-19
Also published as: CN112237345A

Abstract

The invention relates to a slide rail assembly, which comprises a first rail, a second rail and a stopper. The second rail can move relative to the first rail; the stopper is movably arranged on the first rail; when the second rail moves from a retracted position to an extended position relative to the first rail, the second rail is blocked by the blocking member.

Description

Sliding rail assembly

Technical Field

The present invention relates to a slide rail, and more particularly, to an innovative slide rail assembly.

Background

For example, U.S. patent publication No. US 6,935,710B 2 discloses a slide rail assembly. The slide rail assembly includes a first rail (outer rail), a second rail (middle rail) and a third rail (inner rail). As shown in fig. 4 of the patent, when the third rail is located at an extended position relative to the second rail, the third rail is located at two ends of a stopper (or a protrusion) of the second rail through two retaining arms, respectively, so as to prevent the third rail from moving relative to the second rail from the extended position to an opening direction or a closing direction.

The stopper of the previous proposal is fixed on the second rail and occupies a certain size space. However, in the market, the chassis (chassis) matching with the slide rail tends to be larger and smaller, and the slide rail is required to be designed to be thinner to meet the market demand, so that the components inside the slide rail are redesigned to meet the demand. Therefore, the generation of the present invention is performed.

Disclosure of Invention

The invention aims to provide a stopper of a slide rail assembly, which adopts a movable design so that the slide rail assembly can be thinned.

According to an aspect of the present invention, a slide rail assembly includes a first rail, a second rail and a stopper. The second rail can move relative to the first rail; the stopper is movably arranged on the first rail; when the second rail moves from a retracted position to an extended position relative to the first rail in a first direction, the second rail is blocked by the blocking member.

Preferably, the slide assembly further comprises an elastic member for providing elastic force to the stopper.

Preferably, the slide assembly further comprises a first operating member movably mounted to the second rail, the second rail being blocked by the blocking member in a first operating state by the first operating member when the second rail is in the extended position, so as to prevent the second rail from being displaced in the first direction.

Preferably, the first operating member is pivotally connected to the second rail.

Preferably, the slide assembly further comprises a second operating member movably mounted to the second rail, and the second operating member is capable of being stopped by the stopper when the second rail is in the extended position by a first operating state, so as to prevent the second rail from being displaced in a second direction opposite to the first direction.

Preferably, the second working member is pivotally connected to the second rail.

Preferably, the slide rail assembly further includes a first elastic portion and a second elastic portion for providing elastic force to the first working member and the second working member, respectively, so that the first working member and the second working member can be maintained in the first working state.

Preferably, the slide rail assembly further comprises a first operating member and a second operating member for operating the first working member and the second working member to switch from the first working state to a second working state, respectively.

Preferably, the first rail is provided with a locking part, and the slide rail assembly further comprises a sliding aid device movably mounted between the first rail and the second rail, the sliding aid device comprises a body, a plurality of sliding aid pieces and a fastener, the sliding aid pieces are arranged on the body and are used for rolling contacting the first rail and the second rail, and the fastener is movably mounted on the body; when the second rail moves from the extending position to the first direction relative to the first rail, the sliding-assistant device can be clamped to the clamping part of the first rail in a preset state through the fastener.

Preferably, the slide assembly further comprises an elastic feature for providing an elastic force to the fastener so that the fastener can be maintained in the predetermined state.

Preferably, the fastener is pivotally connected to the body of the sliding aid.

Preferably, when the second rail is displaced from the extended position in the first direction to be detached from the first rail, and the second rail is inserted into the first rail again in the second direction to be displaced, the second rail can drive the fastener to be released from the engaging portion of the first rail through a guiding feature.

Preferably, the slide rail assembly further comprises a third rail, and the first rail is movably installed between the third rail and the second rail.

Preferably, the slide rail assembly further comprises a sliding aid kit movably installed between the third rail and the first rail.

Preferably, the sliding aid kit comprises a plurality of sliding aid pieces which are in rolling contact with the third rail and the first rail.

Preferably, the third rail is provided with a functional member, and the first rail is provided with a synchronizing member; when the second rail moves from the retracted position to the first direction relative to the first rail, the second rail can synchronously drive the first rail to move towards the first direction through the synchronizing member until the second rail moves to a predetermined stroke, and a guide structure of the functional member can be used for releasing the synchronous displacement relationship between the second rail and the first rail.

Preferably, the synchronizing member comprises a flexible material.

Preferably, the functional element further comprises a positioning part, and the synchronous element comprises a clamping section flexibly facing the third rail; when the first rail moves to an opening position relative to the third rail in the first direction, the first rail can be clamped to the positioning part of the functional part through the clamping section of the synchronous part, so that the first rail is kept at the opening position.

Preferably, the synchronizer is pivotally connected to the first rail.

Preferably, the synchronizing member includes an elastic leg abutting against 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 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.

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

Fig. 3 is a schematic view illustrating a first view angle of a first rail of the slide rail assembly according to the embodiment of the invention.

Fig. 4 is an exploded view of the components of the first rail of the slide rail assembly according to the embodiment of the invention.

Fig. 5 is an exploded view of components of the first rail of the slide rail assembly according to a second viewing angle of the present invention.

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

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

Fig. 8 is a schematic view illustrating that the first rail and the second rail of the slide rail assembly of the embodiment of the invention synchronously move in a first direction relative to the third rail.

Fig. 9 is an enlarged view of the region a of fig. 8.

Fig. 10 is a schematic view illustrating that the first rail and the second rail of the slide rail assembly of the embodiment of the invention are continuously displaced toward the first direction relative to the third rail.

Fig. 11 is an enlarged view of the region a of fig. 10.

Fig. 12 is a schematic view illustrating that the first rail of the slide rail assembly is at an open position relative to the third rail, and the second rail is displaced in the first direction relative to the first rail according to the embodiment of the invention.

Fig. 13 is a schematic view illustrating that the first rail of the slide rail assembly is at the open position relative to the third rail, and the second rail continues to move in the first direction relative to the first rail according to the embodiment of the invention.

Fig. 14 is an enlarged view of the region a of fig. 13.

Fig. 15 is an enlarged view of the region B of fig. 13.

Fig. 16 is a schematic view illustrating that the first rail of the slide rail assembly is at the open position relative to the third rail, and the second rail is further displaced in the first direction relative to the first rail according to the embodiment of the invention.

Fig. 17 is an enlarged view of the region a of fig. 16.

Fig. 18 is an enlarged view of the region B of fig. 16.

Fig. 19 is a schematic view illustrating an extended state of the slide rail assembly according to the embodiment of the invention.

Fig. 20 is a schematic view illustrating that the first rail of the slide rail assembly is at the open position relative to the third rail, and the second rail is displaced from an extended position relative to the first rail in the first direction according to the embodiment of the invention.

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

Fig. 22 is an enlarged view of the region a of fig. 21.

Fig. 23 is a schematic view of the first rail of the slide rail assembly according to the embodiment of the invention in the open position relative to the third rail, and the second rail is inserted into the channel of the first rail in a second direction.

Fig. 24 is an enlarged view of the region a of fig. 23.

Fig. 25 is a schematic view of the stopper of the first rail in a first position according to the embodiment of the invention.

Fig. 26 is a schematic view illustrating that an elastic member provides an elastic force to a stopper so that the stopper is in the first position according to an embodiment of the invention.

Fig. 27 is a schematic view of the stopper of the first rail in a second position according to the embodiment of the invention.

Fig. 28 is a schematic view illustrating the elastic member in a state of accumulated elastic force in response to the stopper of the first rail being in the second position according to the embodiment of the invention.

Fig. 29 is a schematic view illustrating that the second rail of the slide rail assembly according to the embodiment of the invention is displaced from the retracted position to the first direction relative to the first rail, and the operating element is close to the stopper at the first position.

Fig. 30 is an enlarged view of the region a of fig. 29.

Fig. 31 is a schematic view illustrating that the second rail of the slide rail assembly according to the embodiment of the invention is continuously displaced in the first direction relative to the first rail, and the operating element can press the stopper to make the stopper in the second position.

Fig. 32 is an enlarged view of the region a of fig. 31.

Fig. 33 is a schematic view of the second rail of the slide rail assembly of the embodiment of the invention in an extended position relative to the first rail.

Fig. 34 is an enlarged view of the region a of fig. 33.

Fig. 35 is a schematic view illustrating a functional element of the first rail of the slide rail assembly of the embodiment of the invention that can be engaged with the synchronizing element of the third rail.

Fig. 36 is a schematic view of a portion of the synchronization member of the first rail of the slide rail assembly flexibly facing the third rail according to the embodiment of the invention.

Detailed Description

As shown in fig. 1 and 2, the slide rail assembly of the embodiment of the invention includes a first rail 22 (e.g., middle rail), a second rail 24 (e.g., inner rail), and a stopper 26. Preferably, a third rail 28 (e.g., an outer rail) is also included.

The third rail 28 includes a first wall 30a, a second wall 30b and a longitudinal wall 32 connected between the first wall 30a and the second wall 30b of the third rail 28. The first wall 30a, the second wall 30b and the longitudinal wall 32 of the third rail 28 together define a channel for receiving the first rail 22. Preferably, the slide assembly further comprises at least one sliding aid kit 34 movably installed between the third rail 28 and the first rail 22 for improving the smoothness of the relative displacement between the third rail 28 and the first rail 22. The sliding aid kit 34 includes a plurality of sliding aid pieces 34a rolling contact with the third rail 28 and the first rail 22. Preferably, the longitudinal wall 32 of the third rail 28 is provided with a functional member 36 and the first rail 22 is provided with a synchronizing member 38. Preferably, the synchronization member 38 is located adjacent an end (e.g., a rear end) of the first rail 22. The synchronization element 38 can be used with the function element 36 to disengage the synchronization shift relationship between the second track 24 and the first track 22 (described in detail later). The functional element 36 includes a guiding structure 40 and a positioning portion 42. Preferably, the guiding structure 40 is an inclined surface or an arc surface, and the positioning portion 42 is a groove or a concave portion. On the other hand, the synchronizer 38 is pivoted to the first rail 22 by a shaft 39, and the synchronizer 38 includes an elastic foot 38a and a synchronization structure 38 b.

The first rail 22 is movably mounted between the third rail 28 and the second rail 24, and the first rail 22 is longitudinally displaceable relative to the third rail 28. The first rail 22 includes a first wall 44a, a second wall 44b and a longitudinal wall 46 connected between the first wall 44a and the second wall 44b of the first rail 22. The first wall 44a, the second wall 44b and the longitudinal wall 46 of the first rail 22 together define a channel for receiving the second rail 24.

The stopper 26 is movably disposed on the first rail 22. Preferably, the stopper 26 is located adjacent to another end (e.g., a front end) of the first rail 22.

The second rail 24 is longitudinally displaceable relative to the first rail 22. The second rail 24 includes a first wall 48a, a second wall 48b and a longitudinal wall 50 connected between the first wall 48a and the second wall 48b of the second rail 24.

Preferably, the slide assembly further includes a first working member 52, a second working member 54, and a base 56.

The first and second working

members

52, 54 have a longitudinal distance therebetween to define a space S. Wherein the first operating member 52 is movably mounted to the second rail 24, whereby the first operating member 52 is pivotally connected to the longitudinal wall 50 of the second rail 24 by a first mounting member 58. On the other hand, the second operating member 54 is movably mounted to the second rail 24, where the second operating member 54 is pivotally connected to the longitudinal wall 50 of the second rail 24 by a second mounting member 60. And, further comprises a first elastic portion 56a and a second elastic portion 56b for providing elastic force to the first working member 52 and the second working member 54, respectively, so that the first working member 52 and the second working member 54 can be maintained in a first working state.

Preferably, the slide assembly further includes a first operating member 62 and a second operating member 64 operatively connecting the first and

second operating members

52 and 54, respectively.

Preferably, the first rail 22 is provided with a locking portion 66 located adjacent to the other end (e.g., the front end) of the first rail 22. Here, the latch 66 is formed on a connecting member 68, and the connecting member 68 is fixed to the longitudinal wall 46 of the first rail 22 by at least one fixing member 69, wherein the latch 66 protrudes transversely (laterally) relative to the longitudinal wall 46 of the first rail 22. However, in other embodiments, the latch 66 can be integrated with the longitudinal wall 46 of the first rail 22, and thus, is not limited in implementation.

Preferably, the slide assembly further comprises a sliding aid 70 movably installed between the first rail 22 and the second rail 24 for improving the smoothness of the relative displacement between the first rail 22 and the second rail 24. The sliding aid 70 includes a body 72, a plurality of sliding aids 74, and a fastener 76. The sliding aid pieces 74 are arranged on the body 72 and are used for rolling and contacting the first rail 22 and the second rail 24; the fastener 76 is movably mounted to the body 72 of the sliding assist device 70.

Preferably, the fastener 76 has a resilient feature 78, and the resilient feature 78 is a resilient arm or a spring, but is not limited in implementation. The resilient feature 78 is configured to provide a resilient force to the fastener 76 to maintain the fastener 76 in a first predetermined state.

As shown in fig. 3, 4 and 5, the slide assembly further includes an elastic member 80 for providing an elastic force to the stopper 26. Preferably, the longitudinal wall 46 of the first rail 22 has a first side 23a and a second side 23b opposite to the first side 23a, wherein the first side 23a of the longitudinal wall 46 of the first rail 22 is adjacent to the second rail 24, and the second side 23b of the longitudinal wall 46 of the first rail 22 is adjacent to the third rail 28. The first rail 22 has an opening H communicating the first side 23a and the second side 23b of the first rail 22. Further, the method is as follows. The stopper 26 is disposed at a position corresponding to the opening H. The stopper 26 includes a main body 26a and a stopping portion 26 b. The stop portion 26b is bent from the main body 26a, preferably, the stop portion 26b is substantially perpendicularly connected to the main body 26a, and the stop portion 26b projects transversely (or laterally) relative to the longitudinal wall 46 of the first rail 22 toward the first side 23a of the longitudinal wall 46 of the first rail 22.

Preferably, the opening H adjacent to the first rail 22 includes a plurality of walls, such as a first abutting wall 82a and a second abutting wall 82b, and the abutting

walls

82a, 82b are used to support the stopper 26 to keep the stopper 26 at a predetermined mounting position.

Preferably, the connecting member 68 and the elastic member 80 are respectively disposed on the first side 23a and the second side 23b of the longitudinal wall 46 of the first rail 22, wherein the elastic member 80 has an elastic section 80a, and the position of the elastic section 80a corresponds to the opening H. Preferably, the main body 26a of the stopper 26 is sandwiched between the connecting member 68 and the elastic section 80a of the elastic member 80. Wherein, the elastic section 80a of the elastic member 80 provides an elastic force to the stopper 26, so that the stopper 26b of the stopper 26 can be kept facing the first side 23a of the longitudinal wall 46 of the first rail 22.

Preferably, the fastener 76 is pivotally connected to the body 72 of the sliding aid 70 by a pin 84. Preferably, the fastener 76 also has a fastening section 86, and the pin 84 is located between the fastening section 86 and the resilient feature 78. The resilient feature 78 is disposed against a supporting structure 88 of the body 72 of the sliding assistance device 70, and the supporting structure 88 is, for example, a protrusion or a wall, but not limited to the embodiment.

Preferably, the first rail 22 further has a first opening 91 communicating the first side 23a and the second side 23b of the first rail 22, and a second opening 92 communicating the first side 23a and the second side 23b of the first rail 22. Further, the synchronizing member 38 is disposed on the second side 23b of the longitudinal wall 46 of the first rail 22 (as shown in fig. 5), and the positions of the elastic leg 38a and the synchronizing structure 38b of the synchronizing member 38 correspond to the first opening 91 and the second opening 92, respectively. Preferably, the elastic leg 38a of the synchronizing member 38 can abut against an inner wall W of the first opening 91, and the synchronizing structure 38b of the synchronizing member 38 passes through the second opening 92 and extends to the first side 23a of the longitudinal wall 46 of the first rail 22 (as shown in fig. 3 and 4). Preferably, the synchronizing member 38 includes a latching section 94 (shown in fig. 5), and the shaft member 39 is located between the latching section 94 and the synchronizing structure 38 b.

As shown in fig. 6 and 7, the slide rail assembly is in a retracted state. The first rail 22 is folded relative to the third rail 28, and the second rail 24 is located at a folded position R relative to the first rail 22. It should be noted that the first working member 52, the second working member 54, the base 56, the first operating member 62 and the second operating member 64 are omitted from fig. 6.

Wherein the stopper 26 is located adjacent to the front end of the first rail 22. The catch 76 is spaced from the latch 66. The resilient feature 78 of the fastener 76 abuts against the support structure 88 of the sliding assistance device 70, and the fastener 76 can be maintained in the first predetermined state X1 by the resilient force of the resilient feature 78. Preferably, the sliding aid 70 further includes a first position-limiting portion 96a and a second position-limiting portion 96b (as shown in fig. 7); on the other hand, the fastener 76 includes a contact portion 98, the contact portion 98 is, for example, a protrusion or an extending leg, but the implementation is not limited thereto, and the fastener 76 is located between the first position-limiting portion 96a and the second position-limiting portion 96b through the contact portion 98, so that the fastener 76 can pivot only in a limited range relative to the sliding aid 70.

Wherein the synchronizing member 38 is located at a distance from the function member 36. The synchronizing member 38 can be maintained in an initial state Y1 by the elastic leg 38a abutting against the inner wall W of the first rail 28. Preferably, the second rail 24 has an auxiliary feature 100, and the auxiliary feature 100 is, for example, a protrusion, but is not limited in implementation. When the synchronization member 38 is in the initial state Y1, the auxiliary feature 100 of the second rail 24 can be used with the synchronization member 38.

As shown in fig. 8 and 9, when the second rail 24 is displaced from the retracted position R to a first direction D1 relative to the first rail 22, the second rail 24 pushes the synchronizing structure 38b of the synchronizing member 38 in the initial state Y1 through the auxiliary feature 100, so that the second rail 24 can synchronously drive the first rail 22 to displace to the first direction D1, and when the two rails are synchronously displaced to a predetermined position, the catching section 94 of the synchronizing member 38 contacts the guiding structure 40 of the function member 36 of the third rail 28.

As shown in fig. 10 and 11, when the second rail 24 and the first rail 22 are synchronously displaced to a predetermined stroke in the first direction D1 relative to the first rail 28, the guiding structure 40 of the functional element 36 can be used to release the synchronous displacement relationship between the second rail 24 and the first rail 22.

Further, the engagement section 94 of the synchronization member 38 contacts the guiding structure 40 of the functional member 36 of the third rail 28 to generate a force, so that the synchronization member 38 can pivot at an angle in response to the force to switch from the initial state Y1 to a non-initial state Y2, wherein the auxiliary feature 100 of the second rail 24 is offset from the synchronization structure 38b of the synchronization member 38 to release the synchronization displacement relationship between the second rail 24 and the first rail 22. In addition, when the synchronization member 38 is in the non-initial state Y2, the elastic leg 38a accumulates an elastic force.

As shown in fig. 12, when the first rail 22 is displaced to an open position K in the first direction D1 relative to the third rail 28, the synchronization element 38 responds to the elastic leg 38a to release the elastic force and recover from the non-initial state Y2 to the initial state Y1 again, so that the first rail 22 can be clamped to the positioning portion 42 of the function element 36 by the clamping section 94 of the synchronization element 38, and the first rail 22 is kept at the open position K, so as to prevent the first rail 22 from being displaced from the open position K to the first direction D1 or to a second direction opposite to the first direction D1.

As shown in fig. 13, 14 and 15, when the first rail 22 is located at the open position K relative to the third rail 28, the second rail 24 can still be displaced relative to the first rail 22 in the first direction D1. It should be noted that when the second rail 24 is displaced in the first direction D1 relative to the first rail 22, the sliding aid 70 can also be displaced in the first direction D1. Wherein the fastener 76 can be maintained in the first predetermined state X1 (shown in fig. 14) by the elastic force of the elastic feature 78. In addition, the first operating member 52 and the second operating member 54 can be respectively kept in the first operating state S1 in response to the elastic forces of the first elastic portion 56a and the second elastic portion 56 b. Further, during the displacement of the second rail 24 relative to the first rail 22 in the first direction D1, the second operating member 54 of the second rail 24 contacts a first end 27a (as shown in fig. 15) of the stopping portion 26b of the stopper 26 of the first rail 22 to generate a force.

It should be noted that, as shown in fig. 13 and 14, the fastening member 76 may further include an auxiliary structure located between the pin 84 and the fastening section 86, and two sides of the auxiliary structure respectively have a first guiding section 87a and a second guiding section 87b, wherein the guiding

sections

87a and 87b are inclined planes or arc surfaces. On the other hand, the base 56 further includes a first contact portion 57 and a second contact portion 59, wherein the

contact portions

57 and 59 are inclined surfaces or arc surfaces, and the first contact portion 57 and the second contact portion 59 are configured to match with the first guiding section 87a and the second guiding section 87b, respectively, so that the base 56 can easily pass over the fastener 76 during the process of the second rail 24 moving relative to the first rail 22 in the first direction D1 or in the second direction opposite to the first direction D1. Further, when the second rail 24 is displaced in the first direction D1 relative to the first rail 22, the sliding assistance device 70 is also displaced in the first direction D1, wherein the fastener 76 is in the first predetermined state X1 by the elastic force of the elastic feature 78, and the second guiding segment 87b of the fastener 76 can contact the second contact portion 59 of the base 56.

As shown in fig. 16, 17 and 18, when the second rail 24 is continuously displaced relative to the first rail 22 in the first direction D1, the second working member 54 of the second rail 24 can pivot the second working member 54 by an angle away from the first working state S1 (e.g., from the first working state S1 to a second working state S2) by the force generated by the contact with the stopper 26b of the stopper 26 of the first rail 22, so that the second working member 54 can pass over the first end 27a of the stopper 26. At this time, the second elastic portion 56b is in a state of accumulating an elastic force (as shown in fig. 18). On the other hand, the first operating member 52 is in the first operating state S1 (shown in fig. 17) in response to the elastic force of the first elastic portion 56 a.

It should be noted that, as shown in fig. 16 and 17, when the second rail 24 is continuously displaced in the first direction D1 relative to the first rail 22, the sliding assistance device 70 is also displaced in the first direction D1, wherein the fastener 76 is rotated by an angle from the first predetermined state X1 to a second predetermined state X2 by a force generated by the contact between the second guiding section 87b and the second contact portion 59 of the base 56, and the longitudinal section 61 of the base 56 can abut against the auxiliary structure of the fastener 76, so that the fastener 76 is temporarily kept in the second predetermined state X2. Wherein the resilient feature 78 of the fastener 76 is in a state of accumulating a resilient force.

As shown in fig. 19, when the second rail 24 is further displaced to an extended position E in the first direction D1 relative to the first rail 22, the second rail 24 is blocked by the stopper 26.

For example, when the second rail 24 reaches the extended position E, the second operating member 54 returns from the second operating state S2 to the first operating state S1 in response to the second elastic portion 56b releasing the elastic force, and at this time, the second operating member 54 is located at the second end 27b of the stopper 26. On the other hand, the first operating member 52 is in the first operating state S1 and is located at the first end 27a of the stopper 26. In other words, the first working member 52 and the second working member 54 are respectively located at two opposite ends of the stopper 26. According to this arrangement, the second rail 24 in the first operating state S1 through the first operating member 52 can be blocked by the first end 27a of the stopper 26 to prevent the second rail 24 from being displaced from the extended position E to the first direction D1; and, the second rail 24 is in the first working state S1 through the second operating member 54 and can be blocked by the second end 27b of the stopper 26, so as to prevent the second rail 24 from being displaced from the extended position E to the second direction D2. At this time, the slide rail assembly is in an extended state (for example, but not limited to, a fully extended state). The first operating member 62 and the second operating member 64 can be respectively used for operating the first operating member 52 and the second operating member 54 to switch from the first operating state S1 to the second operating state S2.

It should be noted that, as shown in fig. 19, when the second rail 24 is further displaced to the extended position E in the first direction D1 relative to the first rail 22, the sliding assisting device 70 is further displaced to the first direction D1, and the fastening section 86 of the fastening member 76 in the second predetermined state X2 is offset from the catching portion 66 of the first rail 22.

As shown in fig. 19 and 20, when the second rail 24 is to be displaced from the extended position E to the first direction D1 relative to the first rail 22, a user can apply an operating force F to the first operating element 62 (as shown in fig. 20), so that a driving portion 62a of the first operating element 62 can drive the first working member 52 to be switched from the first working state S1 to the second working state S2 without being blocked by the first end 27a of the blocking portion 26b of the blocking member 26, so as to allow the second rail 24 to be displaced from the extended position E to the first direction D1.

It should be noted that, as shown in fig. 20, when the second rail 24 is displaced from the extended position E to the first direction D1 relative to the first rail 22, the sliding assisting device 70 is also displaced to the first direction D1, and the fastening section 86 of the fastening member 76 in the second predetermined state X2 can pass over the catching portion 66 of the first rail 22.

As shown in fig. 21 and 22, when the second rail 24 is displaced from the extended position E in the first direction D1, the second rail 24 can be detached from the passage of the first rail 22. When the second rail 24 is displaced from the extended position E to the first direction D1 relative to the first rail 22, the sliding aid 70 is also displaced to the first direction D1, and the auxiliary structure of the fastener 76 is no longer supported by the longitudinal section 61 of the base 56, so that the fastener 76 can respond to the elastic feature 78 to release the elastic force and restore to the first predetermined state X1, and the fastening section 86 of the fastener 76 can be fastened to the fastening portion 66 of the first rail 22. Preferably, the detent 66 of the first rail 22 is located between the buckle section 86 of the buckle 76 and the auxiliary structure. According to this configuration, the sliding assist device 70 can be temporarily held in a position.

As shown in fig. 23 and 24, when the second rail 24 is detached from the first rail 22 (see fig. 21), and the second rail 24 is inserted into the channel of the first rail 22 again in the second direction D2 to displace, the second rail 24 can drive the fastener 76 to disengage from the catching portion 66 of the first rail 22 through a guiding feature. Specifically, taking the second contact portion 59 of the base 56 as the guiding feature for example, the second rail 24 pushes the second guiding section 87b of the fastener 76 through the second contact portion 59 of the base 56 to drive the fastener 76 to be no longer in the first predetermined state X1 (e.g., to change the fastener 76 from the first predetermined state X1 to the second predetermined state X2), so that the fastener 76 can be released from the catch portion 66 of the first rail 22, and the sliding assisting device 70 can be displaced along with the second rail 24 in the second direction D2.

As shown in fig. 25 and 26, the stopper 26 can be maintained at a first position P1 by the elastic force provided by the elastic member 80. The connecting member 68 is disposed on the first side 23a of the longitudinal wall 46 of the first rail 22 (as shown in fig. 25), and the elastic member 80 is disposed on the second side 23b of the longitudinal wall 46 of the first rail 22 (as shown in fig. 26). Preferably, the main body 26a of the stopper 26 is sandwiched between the connecting member 68 and the elastic section 80a of the elastic member 80. Wherein the stopper 26 can be maintained at the first position P1 by the elastic segment 80a of the elastic member 80 providing elastic force.

As shown in fig. 27 and 28, the stopper 26 is movable relative to the first rail 22. For example, when the stopper 26 receives a force M, the stopper 26 is laterally displaced from the first position P1 to a second position P2 (as shown in fig. 27) by a distance G, and the elastic segment 80a of the elastic element 80 is slightly elastically deformed to be in a state of accumulating an elastic force (as shown in fig. 28).

As shown in fig. 29 to 32, the second operating member 64 further includes a first abutting feature 64a and a second abutting feature 64 b. Preferably, the pushing

features

64a and 64b are inclined surfaces or arc surfaces, and the pushing

features

64a and 64b are located at two ends of the second operating member 64.

Further, when the second rail 24 is displaced from the retracted position R to the first direction D1 relative to the first rail 22, the second operating member 64 can press the stopper 26 with the force M through the first pushing feature 64a, for example, so that the stopper 26 is displaced from the first position P1 (shown in fig. 30) to the second position P2 (shown in fig. 32), and at this time, the elastic segment 80a of the elastic member 80 is elastically deformed to be in a state of accumulating an elastic force.

As shown in fig. 33 and 34, when the second rail 24 is displaced to the extended position E in the first direction D1 relative to the first rail 22, the first operating member 52 and the second operating member 54 are respectively located at two ends of the stopper 26 (this portion can be referred to as fig. 19), and at this time, the position of the stop portion 26b of the stopper 26 corresponds to the space S defined between the first operating member 52 and the second operating member 54, so that the stopper 26 can be restored to the first position P1 in response to the elastic force released by the elastic section 80a of the elastic member 80.

It is worth mentioning that the elastic member 80 provides an elastic force to the stopper 26, so that the stopper 26 can be transversely held toward the longitudinal wall 50 of the second rail 24, according to this configuration, the stopper 26 can be lifted laterally to be kept at the first position P1 by the elastic force of the elastic member 80, so that the stopper 26 can have a higher lateral height T1 as much as possible and be close to the longitudinal wall 50 of the second rail 24 (for example, the lateral height T1 of the stopper 26 at the first position P1 is at least over half of the thickness T2 of the working

members

52, 54, but is not limited in implementation, as long as the stopper 26 can be close to the longitudinal wall 50 of the second rail 24 as much as possible by the elastic force of the elastic member 80), this improves the reliability of the catch portion 26b of the catch 26 being caught between the operating

members

52, 54, and helps to maintain the second rail 24 in the extended position E relative to the first rail 22. In addition, the limited lateral space defined between the

longitudinal walls

46, 50 of the first and

second rails

22, 24 of the slide assembly also helps to allow the stop 26 of the first rail 22 to be as close as possible to the longitudinal wall 50 of the second rail 24, so that the stop 26 is more effectively captured between the operating

members

52, 54.

As shown in fig. 35 and fig. 36, the synchronizing member 38 is in the initial state Y1 (this portion can be referred to in fig. 12) in response to the elastic foot 38a releasing the elastic force, so that the latching section 94 of the synchronizing member 38 can latch to the positioning portion 42 of the functional member 36. It should be noted that the synchronization member 38 comprises a flexible material, and herein, the synchronization member 38 is made of a flexible material, and the latching section 94 of the synchronization member 38 can flexibly face the longitudinal wall 32 of the third rail 28, preferably, the synchronization member 38 has a flexible arm 93 facing the longitudinal wall 32 of the third rail 28, and the latching section 94 is located on the flexible arm 93, and the latching section 94 of the synchronization member 38 can be close to the longitudinal wall 32 of the third rail 28 through the flexible arm 93, so as to improve the reliability of latching the latching section 94 of the synchronization member 38 to the positioning portion 42 of the function member 36. In addition, the limited lateral space defined between the

longitudinal walls

46, 32 of the first rail 22 and the third rail 28 of the slide rail assembly also helps to enable the engaging section 94 of the synchronization member 38 of the first rail 22 to be as close to the longitudinal wall 32 of the third rail 28 as possible, so that the engaging section 94 of the synchronization member 38 is more effectively engaged with the positioning portion 42 of the function member 36. It should be noted that the functional element 36 is omitted from fig. 36.

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

1. the stopper 26 is movably disposed on the first rail 22 (e.g., a middle rail), and when the second rail 24 is displaced from the retracted position R to the extended position E in the first direction D1 relative to the first rail 22, the second rail 24 is stopped by the stopper 26. According to the configuration, different market requirements can be met, and particularly, the ultra-thin type sliding rail assembly can be used.

2. The resilient force of the resilient member 80 enables the stopper 26 to have a higher lateral height T1 as much as possible to be close to the second rail 24, which improves the reliability of the stopper 26 being caught between the operating

members

52, 54, and helps to keep the second rail 24 in the extended position E relative to the first rail 22.

3. The sliding aid 70 can be locked to the locking part 66 of the first rail 22 through the fastener 76, so that the sliding aid 70 can be kept at a position. Wherein the fastener 76 is movably mounted to the sliding assistance device 70.

4. The engaging section 94 of the synchronization member 38 can flexibly face the longitudinal wall 32 of the third rail 28, so as to improve the reliability of the engaging section 94 engaging with the positioning portion 42 of the functional member 36.

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 second rail and a stopper, wherein the second rail is longitudinally displaceable relative to the first rail, characterized in that:

the blocking piece is movably arranged on the first rail and comprises a main body and a blocking part, and the blocking part is bent from the main body;

a connecting piece is arranged on a first side of a longitudinal wall of the first rail; and

an elastic member disposed on a second side of the longitudinal wall of the first rail, the second side being opposite to the first side;

the main body of the stopper is clamped between the connecting piece and the elastic piece, and the elastic piece is used for providing elastic force to the stopper so that the stopping part of the stopper can be kept towards the first side of the longitudinal wall of the first rail and transversely protrudes relative to the longitudinal wall of the first rail;

when the second rail moves from a retracted position to an extended position relative to the first rail in a first direction, the second rail is blocked by the blocking part of the blocking part.

2. The slide assembly of claim 1 further comprising a first operating member movably mounted to the second rail, the second rail being blocked by the blocking member in a first operating state by the first operating member when the second rail is in the extended position to prevent displacement of the second rail in the first direction.

3. The slide rail assembly of claim 2 wherein the first working member is pivotally coupled to the second rail.

4. The slide assembly of claim 3 further comprising a second operating member movably mounted to the second rail and being blocked by the blocking member when the second rail is in the extended position by the second operating member being in a first operating state to prevent displacement of the second rail in a second direction opposite the first direction.

5. The slide rail assembly of claim 4 wherein the second working member is pivotally connected to the second rail.

6. The slide rail assembly of claim 5 further comprising a first resilient portion and a second resilient portion for providing resilient force to the first and second working members, respectively, to maintain the first and second working members in the first operating state.

7. The slide rail assembly of claim 6 further comprising a first operating member and a second operating member for operating the first operating member and the second operating member, respectively, to switch from the first operating state to a second operating state.

8. The slide rail assembly of claim 1 wherein the first rail has a detent and the slide rail assembly further comprises a sliding aid movably mounted between the first rail and the second rail, the sliding aid comprising a body, a plurality of sliding aids disposed on the body for rolling contact with the first rail and the second rail, and a fastener movably mounted on the body; when the second rail moves from the extending position to the first direction relative to the first rail, the sliding-assistant device can be clamped to the clamping part of the first rail in a preset state through the fastener.

9. The slide rail assembly of claim 8 further comprising a spring feature for providing spring force to the fastener to maintain the fastener in the predetermined state.

10. The slide rail assembly of claim 8 wherein the fastener is pivotally attached to the body of the device.

11. The slide assembly of claim 8 wherein the second rail is configured to move the fastener out of engagement with the first rail through a guide feature during the displacement of the second rail from the extended position in the first direction and into the first rail in a second direction opposite the first direction.

12. The slide rail assembly of claim 1 further comprising a third rail, wherein the first rail is movably mounted between the third rail and the second rail.

13. The slide rail assembly of claim 12 further comprising a sliding aid kit movably mounted between the third rail and the first rail.

14. The slide rail assembly of claim 13 wherein the sliding aid kit comprises a plurality of sliding aid members for rolling contact with the third rail and the first rail.

15. The slide rail assembly of claim 12 wherein the third rail is provided with a functional member and the first rail is provided with a synchronizing member; when the second rail moves from the retracted position to the first direction relative to the first rail, the second rail can synchronously drive the first rail to move towards the first direction through the synchronizing member until the second rail moves to a predetermined stroke, and a guide structure of the functional member can be used for releasing the synchronous displacement relationship between the second rail and the first rail.

16. The slide rail assembly of claim 15 wherein the synchronization member comprises a flexible material.

17. The slide rail assembly of claim 16 wherein the functional element further comprises a positioning portion and the synchronization element comprises a detent section flexibly facing the third rail; when the first rail moves to an opening position relative to the third rail in the first direction, the first rail can be clamped to the positioning part of the functional part through the clamping section of the synchronous part, so that the first rail is kept at the opening position.

18. The slide rail assembly of claim 16 wherein the synchronization member is pivotally coupled to the first rail.

19. The slide rail assembly of claim 18 wherein the synchronization member includes a resilient foot that abuts the first rail.