TWI653953B - Slide rail assembly - Google Patents

Abstract

A slide rail assembly includes a first rail, a second rail, a mounting fitting, a third rail, a fourth rail and a latching member. The mounting fitting includes a first portion, a second portion and a third portion, the first portion and the second portion are connected to the third portion and extend in different directions respectively; the third rail is connected to the mounting fitting a portion, and the third rail is displaceable relative to the first rail; the fourth rail is coupled to the second portion of the mounting fitting, and the second rail is displaceable relative to the fourth rail; the latch member is movably mounted to The mounting fitting is configured to provide the mounting fitting to be displaceable in synchronization with the second rail in a predetermined direction.

Description

Slide rail assembly

The present invention relates to a slide rail, and more particularly to a slide rail assembly having two or more sections of slide rails.

As shown in FIG. 1, in a rack system 100, a carrier 102, like a drawer, is typically mounted with a rail assembly 104 on its left and right sides to be mounted to a frame. Wherein, usually the rack will have a plurality of machine pillars, such as a pair of front pillars 106 and a pair of rear pillars (the pair of rear pillars are omitted herein) for mounting each rail assembly 104 use.

Further, the pair of posts 106 of the frame are typically of a standard width dimension, such as a first width W1. On the other hand, the overall width of the left and right sets of slide rail assemblies 104 (for example, the second width W2) and the width of the carrier 102 (for example, the third width W3) must correspond to the machine. The first width of the shelf is W1. Based on this relationship, sometimes the width of the carrier 102 required by the market is different (that is, the width of the carrier 102 may not be the third width W3), which also means that the width of the rail assembly 104 must be The track assembly 104 is modified to match the overall width of the carrier 102 to the first width W1. It can be seen that the width of the carrier 102 required by the market is wide (i.e., the width of the rail assembly 104 may have to be limited to a narrow width). When the width condition is limited, the strength of the rail assembly (such as structural strength or support strength) is considered as a problem that cannot be ignored.

The present invention relates to a slide rail assembly which can form two or more sections by assembling a plurality of slide rails through a mounting fitting.

According to one aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a mounting fitting, a third rail, a fourth rail, a latching member, and an elastic member. The mounting fitting includes a first portion, a second portion and a third portion, the first portion and the second portion are connected to the third portion and extend in different directions respectively; the third rail is connected to the mounting fitting a portion, and the third rail is displaceable relative to the first rail; the fourth rail is coupled to the second portion of the mounting fitting, and the second rail is displaceable relative to the fourth rail; the latch member is movably mounted to The mounting member; the elastic member provides an elastic force to the latching member; wherein, when the second rail is displaced from a folding position to a first predetermined position, the latching member is provided by the elastic member The spring force can be snapped to the second rail to enable the mounting fitting to be displaced in synchronization with the second rail in the first direction.

Preferably, the fourth rail comprises a first wall, a second wall and a side wall connected between the first wall and the second wall of the fourth rail, and the second rail comprises a first wall, a second wall and a side wall are connected between the first wall and the second wall of the second rail, the latching member is pivotally connected to the mounting fitting, and the first wall and the second wall of the fourth rail are Having a notch, the notch is allowed to pass through a latching portion of the latching member, and the first wall of the second rail has an abutment with one of the second wall When the second rail is in the first predetermined position, the latching portion of the latching member contacts the abutting portion, and the second rail transmits the mounting fitting to the first direction through the abutting portion. .

Preferably, the slide rail assembly further includes a working piece disposed on the first rail, and the working piece is transmitted when the second rail is displaced from the first predetermined position to the first predetermined position to a second predetermined position. The latching member is guided such that the latching portion of the latching member no longer contacts the abutting portion for releasing the synchronous displacement relationship between the mounting fitting and the second rail.

Preferably, the first portion and the second portion are connected to the third portion substantially perpendicularly.

Preferably, the mounting fitting comprises a first side and a second side, the third rail is connected to the first side of the first part of the mounting fitting, and the fourth rail is connected to the second part of the mounting fitting The second side.

Preferably, the first side and the second side are opposite sides.

Preferably, the first rail includes a first wall, a second wall and a side wall connected between the first wall and the second wall of the first rail, and the first wall and the second wall of the first rail The wall and the side wall define a first passage, and the third rail is displaceable relative to the first rail through the first passage.

Preferably, the third rail comprises a first wall, a second wall and a side wall connected between the first wall and the second wall of the third rail, and the side wall of the third rail is connected to the installation a first portion of the accessory, and the first wall and the second wall of the third rail are located in the first passage.

Preferably, the slide rail assembly further comprises a first sliding device movably mounted between the first rail and the third rail, the first sliding device comprising a plurality of sliding members for supporting Between the first rail and the first wall of the third rail, and between the first rail and the second wall of the third rail.

Preferably, the first wall of the first rail has a first segment and a second segment bent relative to the first segment, and the second wall of the first rail has a third segment opposite to a fourth segment The third paragraph is bent.

Preferably, the side wall of the fourth rail is connected to the second part of the mounting fitting, and the first wall, the second wall and the side wall of the fourth rail define a second passage, and the second rail passes through the first The two channels are displaceable relative to the fourth rail.

Preferably, the first wall and the second wall of the second rail are located in the second passage.

Preferably, the slide rail assembly further comprises a second sliding device movably mounted between the fourth rail and the second rail, the second sliding device comprising a plurality of sliding members for supporting Between the second rail and the first wall of the fourth rail, and between the second rail and the second wall of the fourth rail.

Preferably, one of the first wall and the second wall of the first rail has a positioning portion, and when the mounting fitting is displaced to the third predetermined position in the first direction, the latch member is resilient The elastic force of the piece can be latched to the positioning portion of the first rail to prevent displacement of the mounting fitting relative to the first rail to the first direction or a second direction.

Preferably, the slide rail assembly further comprises a buffer member disposed in the first A rail, and a contact member are disposed on the third rail. When the third rail is to be mounted to the first direction and displaced to the predetermined direction, the contact member contacts the buffer member for providing a buffering function.

Preferably, a front portion adjacent to the first rail includes a first retaining seat, and the sliding rail assembly further includes a retaining seat, and the buffering member is mounted between the first retaining seat and the retaining seat.

Preferably, a front portion adjacent to the fourth rail includes a second retaining seat, and a blocking member is movably coupled to the second rail, and the second rail is displaced relative to the fourth rail toward the first direction. In an open position, the blocking member can contact a stop of the second block in a blocking position to prevent the second rail from continuing to move in the first direction, and an operating member can be used to operate the block The piece is no longer in this blocking position.

Preferably, when the second rail is displaced from the open position to the second folding direction to a predetermined folding position, the second rail drives the latching member, so that the latching member is no longer stuck to the first The positioning part of a track.

According to another aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a mounting fitting, a third rail, a fourth rail, and a latch member. The mounting fitting includes a first portion, a second portion and a third portion, the first portion and the second portion are connected to the third portion substantially perpendicularly and extend in different directions respectively; the third rail is connected to the third rail Installing a first portion of the fitting, and the third rail is displaceable relative to the first rail; the fourth rail is coupled to the second portion of the mounting fitting, and the second rail is displaceable relative to the fourth rail; the latching member Arranged in this installation And one of the fourth rails, the latching member is configured to provide the mounting bracket to the second rail, so that the mounting bracket can be displaced synchronously with the second rail in a first direction.

<Practical Technology>

100‧‧‧Rack system

102‧‧‧bearers

104‧‧‧Slide rail assembly

106‧‧‧ machine column

W1‧‧‧ first width

W2‧‧‧ second width

W3‧‧‧ third width

<Example of the present case>

20‧‧‧Slide rail assembly

22‧‧‧First track

22a‧‧‧ front

22b‧‧‧After

24‧‧‧second track

26‧‧‧ Third track

27‧‧‧Long slot

28‧‧‧fourth track

28a‧‧‧ front

30‧‧‧Installation accessories

32a‧‧‧First Wall

32b‧‧‧ second wall

34‧‧‧ Side wall

36‧‧‧First Passage

38‧‧‧ cushioning parts

38a‧‧‧End

38b‧‧‧Other end

40‧‧‧First stop

41‧‧‧Retaining wall

42‧‧‧Keeping seat

42a‧‧‧Support feet

44a‧‧‧ first

44b‧‧‧ second

44c‧‧‧ third

46a‧‧‧First Wall

46b‧‧‧Second wall

48‧‧‧ Side wall

50‧‧‧First sliding device

50a‧‧‧First sliding aid

50b‧‧‧second sliding aid

52a‧‧‧First Wall

52b‧‧‧second wall

54‧‧‧ Side wall

56‧‧‧second channel

58a‧‧‧First Wall

58b‧‧‧Second wall

60‧‧‧ Side wall

62‧‧‧Second aid slide

62a‧‧‧First sliding aid

62b‧‧‧Second assisted slider

64‧‧‧ Cards

65‧‧‧Flexing Department

66‧‧‧Flexible parts

67‧‧‧ shaft parts

68‧‧‧ gap

70‧‧‧Card Department

71‧‧‧Another card department

72‧‧‧Abutment

74‧‧‧Workpieces

75‧‧‧ guiding section

76‧‧‧ Positioning Department

78‧‧‧Contacts

80‧‧‧second block

81‧‧‧ 挡

82‧‧‧ §

83‧‧‧ elastic seat

84‧‧‧Operating parts

84a‧‧‧Department

86‧‧‧Guide

88‧‧‧bearers

90a‧‧‧first column

90b‧‧‧Second column

D1‧‧‧ first direction

F‧‧‧Power

H‧‧‧ Space

L1‧‧‧ first side

L2‧‧‧ second side

P1‧‧‧ first scheduled location

P2‧‧‧ second predetermined position

P3‧‧‧ third predetermined position

P4‧‧‧Open position

P5‧‧‧ scheduled folding position

R‧‧‧retracted position

S1‧‧‧ first paragraph

S2‧‧‧ second paragraph

S3‧‧‧ third paragraph

S4‧‧‧ fourth paragraph

X1‧‧‧ blocking position

X2‧‧‧Unblocked position

Y1‧‧‧ first width

Y2‧‧‧ second width

Y3‧‧‧ third width

1 is a schematic view showing a rack system of a prior art; FIG. 2 is a perspective view showing a slide rail assembly according to an embodiment of the present invention; FIG. 3 is a schematic exploded view of the slide rail assembly of the embodiment of the present invention; FIG. 5 is a schematic cross-sectional view showing a slide rail assembly according to an embodiment of the present invention; FIG. 6 is a schematic view showing a slide rail assembly in a folded position according to an embodiment of the present invention; and FIG. 7 is an enlarged schematic view showing a region A of FIG. FIG. 8 is an enlarged schematic view showing a region B of FIG. 6; FIG. 9 is a view showing the second rail and the mounting fitting when the second rail of the slide rail assembly of the embodiment of the present invention is displaced to a first predetermined position in a first direction. FIG. 10 is an enlarged schematic view showing a region A of FIG. 9; FIG. 11 is a view showing the second rail of the slide rail assembly of the embodiment of the present invention and the mounting fitting being displaced to the first direction to A schematic view of a workpiece on the first rail contacting the latch member during a second predetermined position; FIG. 12 is a view showing the second rail of the slide rail assembly of the embodiment of the present invention and the mounting bracket toward the first direction When shifting to the second predetermined position, A schematic diagram of the synchronous displacement relationship between the second rail and the mounting fitting is cancelled by the working member; FIG. 13 is a view showing a process of shifting the mounting assembly of the slide rail assembly to the third predetermined position in the first direction according to the embodiment of the present invention; FIG. 14 is a schematic view showing the working member contacting the latching member; FIG. 14 is a view showing the latching member of the embodiment of the present invention, when the mounting assembly of the slide rail assembly is displaced to the third predetermined position, the latching member is latched to the first rail One location FIG. 15 is a schematic view showing the mounting member contacting a buffer member through a contact member when the second rail of the embodiment of the present invention is displaced to the first direction; FIG. 16 is an enlarged schematic view showing the area A of FIG. FIG. 17 is a schematic view showing the mounting member further contacting the buffer member through the contact member when the second rail of the embodiment of the present invention is displaced to the open position in the first direction; FIG. 18 is an enlarged schematic view showing the area A of FIG. FIG. 19 is a schematic view showing the second rail of the embodiment of the present invention in the open position; FIG. 20 is a view showing the process of shifting the second rail of the slide rail assembly from the open position to the second direction according to the embodiment of the present invention; 2 is a schematic view of the second rail contacting the latching member; FIG. 21 is a view showing the second rail of the slide rail assembly of the embodiment of the present invention, which is moved in the second direction, and the second rail drives the latching member to make the latching A schematic view of a piece unwound from a positioning portion of the first rail; and FIG. 22 shows a schematic view of a rack system of an embodiment of the present invention.

A more detailed understanding of the structure, features, functions and objects of the present invention will be provided. The embodiments of the present invention are described in detail below with reference to the drawings.

As shown in FIG. 2, the slide rail assembly 20 of the embodiment of the present invention includes a first rail 22, a second rail 24, a third rail 26, a fourth rail 28, and a mounting fitting 30.

As shown in FIG. 3 to FIG. 5, the first rail 22 and the second rail 24 are arranged in an upper and lower parallel relationship. The relationship between the position of the first rail 22 and the position of the second rail 24 is The difference in height. In this embodiment (as shown in FIG. 5), although the first rail 22 is located above the second rail 24, however, In an alternative embodiment, the second rail 24 can be located above the first rail 22, and is not limited in implementation. The third rail 26 and the fourth rail 28 are fixedly coupled to the first portion 44a and the second portion 44b of the mounting fitting 30, respectively. The third rail 26 is displaceable relative to the first rail 22, and the second rail 24 is displaceable relative to the fourth rail 28.

The first rail 22 includes a first wall 32a, a second wall 32b, and a side wall 34 connected between the first wall 32a and the second wall 32b of the first rail 22, and the first rail 22 is A wall 32a, a second wall 32b and a side wall 34 define a first passage 36. The first rail 22 has a front portion 22a and a rear portion 22b.

The mounting fitting 30 has an appearance similar to the English letter "N", and the first portion 44a and the second portion 44b are disposed in an upper portion and a lower portion. Preferably, the mounting portion 30 further includes a third portion 44c. The three parts 44c are essentially a horizontal part, but the implementation is not limited. The first portion 44a and the second portion 44b are substantially perpendicularly connected to the two portions of the third portion 44c and extend in different directions. For example, the first portion 44a extends upward by a predetermined length, and the second portion 44b extends downward by a predetermined length.

The third rail 26 is connected to the first portion 44a of the mounting fitting 30 and is located on a first side L1 of the mounting fitting 30. The third rail 26 is displaceable relative to the first rail 22 through the first passage 36. The third rail 26 includes a first wall 46a, a second wall 46b, and a side wall 48 connected between the first wall 46a and the second wall 46b of the third rail 26, and the third rail 26 The side wall 48 is connected to the first portion 44a of the mounting fitting 30, and the first wall 46a and the second wall 46b of the third rail 26 Within the first channel 36. Preferably, the slide rail assembly 20 further includes a first sliding device 50 movably mounted between the first rail 22 and the third rail 26. The first sliding device 50 includes a plurality of sliding members, such as a first sliding member 50a and a second auxiliary sliding member 50b. The first sliding member 50a and the second auxiliary sliding member 50b are balls or Roller and the like. The first sliding member 50a is supported between the first wall 32a of the first rail 22 and the first wall 46a of the third rail 26, and the second sliding member 50b is supported at the first The second wall 32b of the rail 22 is between the second wall 46b of the third rail 26. Preferably, the first wall 32a of the first rail 22 has a first segment S1 and a second segment S2 bent relative to the first segment S1, and the second wall 32b of the first rail 22 has a third portion. The segment S3 and a fourth segment S4 are bent relative to the third segment S3. According to this configuration, it is possible to increase the structural strength or the support strength of the first rail 22.

The fourth rail 28 is connected to the second portion 44b of the mounting fitting 30 and is located on a second side L2 of the mounting fitting 30. The first side L1 and the second side L2 are opposite sides. The fourth rail 28 includes a first wall 52a, a second wall 52b and a side wall 54 connected between the first wall 52a and the second wall 52b of the fourth rail 28. The side wall 54 of the fourth rail 28 is connected to the second portion 44b of the mounting fitting 30, and the first wall 52a, the second wall 52b and the side wall 54 of the fourth rail 28 define a second passage 56. The second rail 24 is displaceable relative to the fourth rail 28 through the second passage 56.

The second rail 24 includes a first wall 58a, a second wall 58b, and a side wall 60 connected between the first wall 58a and the second wall 58b of the second rail 24, and the second rail 24 A wall 58a and a second wall 58b are located within the second passage 56. Preferably, the slide rail assembly 20 further includes a second assisting device 62 movably mounted between the fourth rail 28 and the second rail 24. The second auxiliary sliding device 62 includes a plurality of sliding members, such as a first sliding member 62a and a second auxiliary sliding member 62b. The first auxiliary sliding member 62a and the second auxiliary sliding member 62b are balls or rollers. And the like. The first sliding member 62a is supported between the first wall 58a of the second rail 24 and the first wall 52a of the fourth rail 28, and the second sliding member 62b is supported by the second The second wall 58b of the rail 24 is between the second wall 52b of the fourth rail 28.

Preferably, as shown in FIG. 3, FIG. 6 and FIG. 7, the slide rail assembly 20 further includes a latching member 64 and an elastic member 66. The latching member 64 is movably mounted to the mounting fitting 30. Here, the latching member 64 is pivotally connected to the mounting fitting 30 through a shaft member 67; and the elastic member 66 has a resilient portion 65 (this) Portions can also be provided to the latch member 64 in conjunction with FIG. 4). Further, one of the first wall 52a and the second wall 52b of the fourth rail 28 has a hole or a notch 68, and the notch 68 can be inserted into a latching portion 70 of the latching member 64. . Preferably, the latch member 64 further has another latch portion 71. The shaft member 67 is located between the latch portion 70 and the other latch portion 71. Preferably, the elastic portion 65 of the elastic member 66 is adjacent to the other latch portion 71. Preferably, one of the first wall 58a and the second wall 58b of the second rail 24 has an abutting portion 72. In this embodiment, the second rail 24 has a space H (for example, a hole, a slot or a notch) for receiving the latching portion 70 of the latching member 64, and the abutting portion 72 is a portion of the space H. Wall.

Preferably, as shown in FIG. 3 and FIG. 6, the slide rail assembly 20 further includes A working piece 74 is disposed on the first rail 22. Here, the working member 74 is a second wall 32b connected to the first rail 22. The workpiece 74 is used to mate with the latch 64.

Preferably, as shown in FIG. 3 and FIG. 6, one of the first wall 32a and the second wall 32b of the first rail 22 has a positioning portion 76, such as a groove, a hole or a notch. .

Preferably, as shown in FIG. 3 and FIG. 6 , the slide rail assembly 20 further includes a buffering member 38 disposed on the first rail 22 , wherein the buffering member 38 is disposed adjacent to the first rail 22 . The front portion 22a (this portion can be referred to with reference to FIG. 8), and the buffer member 38 is, for example, a soft plastic material or a cushion, but the implementation is not limited. Preferably, the front portion 22a adjacent to the first rail 22 includes a first stop 40 and a retaining seat 42. The buffering member 38 is mounted between the first retaining seat 40 and the retaining seat 42. The position of the buffering member 38 corresponds to a retaining wall 41 of the first retaining seat 40. The retaining wall 41 can be used to provide the cushioning member 41. The cushioning member 38 abuts.

Preferably, as shown in FIG. 3 and FIG. 6 , the slide rail assembly 20 further includes a contact member 78 disposed on the third rail 26 , and the contact member 78 is configured to cooperate with the buffer member 38 . The contact member 78 is connected to the third rail 26 as a separate member; alternatively, the contact member 78 can be integrated with the third rail 26. Here, the contact member 78 is exemplified by a protrusion protruding from the side wall 48 of the third rail 26, but is not limited.

Preferably, as shown in FIG. 3 and FIG. 6, the front portion 28a adjacent to the fourth rail 28 includes a second stop 80, and a stop member 82 is movably connected (eg, pivoted). To the side wall 60 of the second rail 24. Preferably, a resilient seat 83 provides an elastic force applied to the stop member 82, and an operating member 84 is operable to operate the stop member 82 to yaw.

As shown in FIG. 6 and FIG. 7 , the second rail 24 is in a folded position R, wherein the latching portion 70 of the latching member 64 passes through the notch 68 of the fourth rail 28 to abut the second rail 24 . The first wall 58a causes the elastic member 66 (the elastic portion 65) to accumulate an elastic force.

As shown in FIG. 9 and FIG. 10, when the second rail 24 is displaced from the folding position R to a first predetermined position P1, the latching member 64 responds to the elastic force of the elastic member 66. The portion 65) releases the elastic force to allow the latching portion 70 of the latching member 64 to enter the space H of the second rail 24 and contact the abutting portion 72 of the second rail 24, so that the mounting fitting 30 and the first portion The three rails 26 and the fourth rails 28 are displaceable synchronously with the second rails 24 in the first direction D1.

As shown in FIG. 11 and FIG. 12, when the second rail 24 is displaced from the first predetermined position P1 to the first direction D1 to a second predetermined position P2, the latch member 64 contacts the workpiece. 74. Preferably, one of the latching member 64 and the working member 74 includes a guiding portion 86, such as a bevel or a curved surface, for assisting in guiding the latching member 64 to swing. When the second rail 24 is displaced to the second predetermined position P2, the workpiece 74 is guided through the workpiece 74 to lie at an angle, so that the elastic portion 66 of the elastic member 66 accumulates an elastic force. The latching portion 70 of the latching member 64 no longer contacts the abutting portion 72 of the second rail 24 for releasing the synchronous displacement relationship between the mounting bracket 30 and the second rail 24. In other words, the second rail 24 is independently displaceable relative to the first rail 22 in the first direction D1.

As shown in FIG. 13 and FIG. 14 , when the mounting fitting 30 and the third rail 26 and the fourth rail 28 are displaced relative to the first rail 22 in the first direction D1 to a predetermined stroke, for example, displacement to a first When the stroke of the predetermined position P3 is three, the latching member 64 returns the positioning of the elastic member 66 (the elastic portion 65) to release the elastic force at an angle and is latched to the first rail 22 through the other latching portion 71. a portion 76, and at this time, the latching portion 70 of the latching member 64 is in the notch 68 of the fourth rail 28 for preventing the mounting fitting 30 from being opposite to the first rail 22 in the first direction D1 or vice versa. A displacement of a second direction of direction D1. Preferably, the workpiece 74 has a guiding section 75, such as a bevel or a curved surface. The latch member 64 helps to guide the other latch portion 71 to the positioning portion 76 of the first rail 22 by contacting the guide segment 75. At this time, the mounting fitting 30 and the third rail 26 and the fourth rail 28 are in an open state or an extended state relative to the first rail 22.

As shown in FIG. 15 to FIG. 18, when the mounting fitting 30 is in the above-mentioned open state, the second rail 24 is displaceable relative to the fourth rail 28 to the first direction D1 to an open position P4, and the blocking member 82 is A blocking portion 81 of the second block 80 can be contacted at a blocking position X1 to prevent the second rail 24 from continuing to move in the first direction D1. If the speed at which the second rail 24 is opened to the first direction D1 is fast, the force of the blocking member 82 contacting or colliding with the blocking portion 81 of the second blocking seat 80 is also increased, so that the permeable is The contact member 78 contacts the bumper 38 for providing a cushioning effect and also has the effect of reducing the impact sound. Herein, the contact member 78 contacts the one end portion 38a of the buffer member 38 through the retaining seat 42 such that the other end portion 38b of the cushioning member 38 abuts against the retaining wall 41 of the first retaining seat 40 (as shown in the figure). A cushioning effect is created as shown in Fig. 18, which protects the mounting fitting 30 or the rail-related parts. Preferably, the retaining seat 42 is movably mounted to the first rail 22, for example, the retaining seat 42 has a long slot 27 (or slot) into which the two supporting legs 42a extend into the first rail 22, thus The retaining seat 42 can be slightly driven by the contact member 78 to push against the cushioning member 38, so that the cushioning member 38 abuts against the retaining wall 41 of the first retaining seat 40 to generate a cushioning effect. However, in an alternative embodiment, the contact member 78 can also be directly pushed against the cushioning member 38 without passing through the retaining seat 42 for the purpose of providing a cushioning function to protect the relevant parts of the slide rail.

As shown in FIG. 19, when the mounting fitting 30 and the third rail 26 and the fourth rail 28 are in the open state, the second rail 24 is displaceable relative to the fourth rail 28 in the first direction D1 to the The position P4 is opened, and the user applies the force F to the operating member 84, so that the untwisting portion 84a of the operating member 84 can operate the blocking member 82 to be no longer in the blocking position X1 (for example, the blocking member 82 is in a non-existing position The blocking position X2) causes the blocking member 82 to no longer contact the blocking portion 81 of the second blocking seat 80, so that the second rail 24 can continue to be disengaged from the fourth rail 28 by displacement in the first direction D1. Alternatively, when the second rail 24 is in the open position P4, the user can also fold the second rail 24 from the open position P4 to the second direction D2.

As shown in FIG. 20 and FIG. 21, when the second rail 24 is displaced from the opening position P4 to the second direction D2 to a predetermined folding position P5, the second rail 24 drives the latching member 64 to yaw. At an angle, at this time, the elastic portion 65 of the elastic member 66 accumulates an elastic force, and the other latch portion 71 of the latch member 64 is no longer caught to the positioning portion 76 of the first rail 22. In other words, the mounting accessory 30 is opposite the first The rail 22 can also be displaced in the second direction D2, so that the second rail 24 and the mounting fitting 30 and the third rail 26 and the fourth rail 28 can be received in the second direction D2 relative to the first rail 22 Hehe.

As shown in FIG. 22, the left and right sides of a carrier 88 can be mounted to a first column 90a and a second column 90b of a frame through a pair of slide rail assemblies 20, the first column There is a first width Y1 between the 90a and the second column 90b. Wherein the first width Y1 of the frame is substantially equivalent to the first width W1 of the frame of the conventional (this part can be referred to with reference to FIG. 1). It is worth mentioning that the first rail 22, the second rail 24, the mounting fitting 30, the third rail 26 and the fourth rail 28 of the slide rail assembly 20 are only schematically illustrated in FIG.

Further, the carrier 88 used in the embodiment of the present invention has a third width Y3 which is wider than the third width W3 of the conventional carrier 102 (FIG. 1). Therefore, this will make the embodiment of the present invention The width of the slide rail assembly 20 must be limited to a second width Y2 that is narrower than the second width W2 of the conventional rail assembly 104, however, due to the third rail 26 and the fourth embodiment of the present embodiment Rails 28 are coupled to two different portions of the mounting fixture 30 to match the first rail 22 and the second rail 24. Accordingly, the structural strength or support strength of the slide rail assembly 20 can be facilitated with a limited width.

It can be seen that the slide rail assembly of the embodiment of the present invention includes the following features:

1. The third rail 26 is displaceable relative to the first rail 22, and the second rail 24 is displaceable relative to the fourth rail 28, wherein the first rail 22 and the second rail 24 In the upper and lower parallel arrangement relationship, the position of the first rail 22 and the position of the second rail 24 can be made different in height. One such feature is that the two rails of the two or more sections of the conventional rail assembly are limited in width, and the third rail 26 and the fourth rail 28 of the embodiment of the present invention are connected to Two different portions of the mounting assembly 30 (e.g., upper and lower portions) are mated to match the first rail 22 and the second rail 24. Accordingly, the slide rail assembly 20 can also form two or more slide rails.

2. The third rail 26 and the fourth rail 28 are coupled to two different portions of the mounting fitting 30 to match the first rail 22 and the second rail 24. Accordingly, it contributes to the structural strength or support strength of the slide rail assembly 20.

3. When the second rail 24 and the mounting bracket 30 and the third rail 26 and the fourth rail 28 are displaced to a predetermined position in the first direction, the latching member 64 can be synchronously displaced.

4. When the second rail 24 is displaced to an open position (for example, a fully open position), the cushioning member 38 can be contacted through the contact member 78 to prevent the blocking member 82 from directly contacting or striking the second blocking seat 80 at the blocking position X1. The blocking portion 81.

5. In addition to the function of allowing the mounting fitting 30 to be displaced synchronously with the second rail 24, the latching member 64 can also provide the mounting bracket 30 to be snapped to the first rail 22 for preventing The mounting bracket 30 is displaced relative to the first rail 22 in the first direction D1 or the second direction D2.

Although the invention has been disclosed in the foregoing preferred embodiments, it is not intended to limit the invention, therefore, the scope of the invention is The scope of the patent shall prevail.

Claims (20)

A slide rail assembly comprising: a first rail; a second rail; a mounting fitting comprising a first portion, a second portion and a third portion, the first portion being coupled to the second portion and the third portion And extending in different directions; a third rail is connected to the first portion of the mounting fitting, and the third rail is displaceable relative to the first rail; a fourth rail is connected to the second portion of the mounting fitting, and the The second rail is displaceable relative to the fourth rail; a latch member is movably mounted to the mounting fitting; and an elastic member provides an elastic force to the latch member; wherein, when the second rail is moved from a retracted position to a first When the direction is displaced to a first predetermined position, the latch member returns to the elastic member to provide an elastic force to be snapped to the second rail, so that the mounting member can be displaced synchronously with the second rail in the first direction. The slide rail assembly of claim 1, wherein the fourth rail comprises a first wall, a second wall and a side wall connected between the first wall and the second wall of the fourth rail, and The second rail includes a first wall, a second wall and a side wall connected between the first wall and the second wall of the second rail, and the latching member is pivotally connected to the mounting accessory, the fourth rail The first wall and the second wall have a gap, The notch can be inserted into a latching portion of the latching member, and the first wall of the second rail and the second wall have an abutting portion, when the second rail is in the first predetermined position, The latching portion of the latching member contacts the abutting portion, and the second rail passes the abutting portion to drive the mounting fitting in the first direction. The slide rail assembly of claim 2, further comprising a working piece disposed on the first rail, and transmitting the second rail to the second predetermined position when the second rail is displaced from the first predetermined position to the first predetermined position The working piece guides the latching member such that the latching portion of the latching member no longer contacts the abutting portion for releasing the synchronous displacement relationship between the mounting fitting and the second rail. The slide rail assembly of claim 3, wherein the first portion is connected to the second portion substantially perpendicularly to the third portion. The slide rail assembly of claim 4, wherein the mounting fitting includes a first side and a second side, the third rail is coupled to the first side of the first portion of the mounting fitting, and the fourth A rail is coupled to the second side of the second portion of the mounting fitting. The slide rail assembly of claim 5, wherein the first side and the second side are opposite sides. The slide rail assembly of claim 5, wherein the first rail comprises a first wall, a second wall and a side wall connected between the first wall and the second wall of the first rail, The first wall, the second wall and the side wall of the first rail define a first passage, and the third rail is displaceable relative to the first rail through the first passage. The slide rail assembly of claim 7, wherein the third rail includes a first a wall, a second wall and a side wall are connected between the first wall and the second wall of the third rail, the side wall of the third rail is connected to the first part of the mounting fitting, and the third rail The first wall and the second wall are located in the first passage. The slide rail assembly of claim 8, further comprising a first sliding device movably mounted between the first rail and the third rail, the first sliding device comprising a plurality of sliding members, Supported between the first rail and the first wall of the third rail, and supported between the first rail and the second wall of the third rail. The slide rail assembly of claim 7, wherein the first wall of the first rail has a first segment and a second segment bent relative to the first segment, and the second wall of the first rail has A third segment and a fourth segment are bent relative to the third segment. The slide rail assembly of claim 9, wherein the side wall of the fourth rail is connected to the second portion of the mounting fitting, and the first wall, the second wall and the side wall of the fourth rail define a second a channel, and the second rail is displaceable relative to the fourth rail through the second channel. The slide rail assembly of claim 11, wherein the first wall and the second wall of the second rail are located in the second passage. The slide rail assembly of claim 12, further comprising a second sliding device movably mounted between the fourth rail and the second rail, the second sliding device comprising a plurality of sliding members, Supported between the second rail and the first wall of the fourth rail, and supported between the second rail and the second wall of the fourth rail. The slide rail assembly of claim 13, wherein one of the first wall and the second wall of the first rail has a positioning portion, and the mounting fitting is displaced to the third predetermined direction in the first direction In the position, the elastic member of the elastic member can be snapped to the positioning portion of the first rail to prevent displacement of the mounting member relative to the first rail in the first direction or a second direction. The slide rail assembly of claim 13, further comprising a buffer member disposed on the first rail, and a contact member disposed on the third rail, wherein the third rail should be mounted with the fitting displaced to the first direction The contact member contacts the cushioning member to provide a cushioning action up to a predetermined stroke. The slide rail assembly of claim 15, wherein a front portion adjacent to the first rail includes a first stop, and the slide rail assembly further includes a retaining seat, wherein the buffer member is mounted on the first A block is placed between the block and the holder. The slide rail assembly of claim 14, wherein a front portion of the adjacent fourth rail includes a second stop, and a stop is movably coupled to the second rail when the second rail is opposite When the fourth rail is displaced to the open position in the first direction, the blocking member can contact a stop portion of the second retaining seat at a blocking position to prevent the second rail from continuing to move in the first direction And an operating member is operable to operate the stop no longer in the blocking position. The slide rail assembly of claim 17, wherein the second rail drives the latch member when the second rail is displaced from the open position to the predetermined folded position. The latch member is no longer snapped to the positioning portion of the first rail. A slide rail assembly comprising: a first rail; a second rail; a mounting fitting comprising a first portion, a second portion and a third portion, the first portion being substantially perpendicular to the second portion Connecting the third portion and extending in different directions respectively; a third rail is connected to the first portion of the mounting fitting, and the third rail is displaceable relative to the first rail; and a fourth rail is connected to the second portion of the mounting fitting And the second rail is displaceable relative to the fourth rail; and a latching member is disposed on one of the mounting fitting and the fourth rail, the latching member is configured to provide the mounting accessory latch to the second The rail enables the mounting fitting to be displaced in synchronization with the second rail in a first direction. The slide rail assembly of claim 19, wherein the fourth rail comprises a first wall, a second wall and a side wall connected between the first wall and the second wall of the fourth rail, and The second rail includes a first wall, a second wall and a side wall connected between the first wall and the second wall of the second rail, and the latching member is pivotally connected to the mounting accessory, the fourth rail One of the first wall and the second wall has a notch, the notch is allowed to pass through a latching portion of the latching member, and the first wall of the second rail and the second wall have an abutting portion When the second rail is in a first predetermined position, the latching portion of the latching member contacts the abutting portion, so that the second rail can drive the mounting fitting in the first direction through the abutting portion. among them, The slide rail assembly further includes a working piece disposed on the first rail, and when the second rail is displaced to the second predetermined position in the first direction, the latching member is guided through the working member to make the card The latching portion of the jaw member no longer contacts the abutting portion for releasing the synchronous displacement relationship between the mounting fitting and the second rail.