Slide Rail Mechanism

Abstract

To provide a slide rail mechanism that can prevent two movable rails of slide rail assemblies from being opened or extended simultaneously.SOLUTION: A slide rail mechanism is provided, and comprises a first slide rail assembly, a second slide rail assembly, and a connection member. The first slide rail assembly includes a first rail, and a second rail capable of being displaced in a longitudinal direction with respect to the first rail. The second slide rail assembly includes a third rail, and a fourth rail capable of being displaced in a longitudinal direction with respect to the third rail. When the second rail is displaced in an opening direction with respect to the first rail, the connection member is moved in order to prevent the fourth rail from being displaced in an opening direction with respect to the third rail.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a slide rail mechanism according to the preamble of claim 1 (preceding the characterizing clause). [Background technology]

[0002] European Patent No. 1441092 (Patent Document 2) discloses a blocking device suitable for a drawer cabinet. The drawer cabinet includes a cabinet body, a plurality of drawers, and a plurality of slide rail assemblies. The blocking device includes a plurality of self-closing assemblies and a plurality of lifting members. Each of the plurality of self-closing assemblies is disposed on a corresponding drawer or a corresponding slide rail assembly and includes a driving member. When one of the plurality of drawers is opened relative to the cabinet body, the one of the plurality of drawers drives an interlocking mechanism formed by the plurality of lifting members. This is achieved by blocking the other of the plurality of drive members with a blocking catch of a corresponding one of the plurality of drive members to prevent the other of the plurality of drawers from being opened relative to the cabinet body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] U.S. Patent No. 9,907,400 [Patent Document 2] European Patent No. 1441092 Summary of the Invention

[0004] However, the aforementioned blocking device has a complicated structure. To meet several different requirements, it becomes an important issue to provide an improved slide rail product.

[0005] Therefore, an object of the present invention is to provide a slide rail mechanism that can prevent two movable rails of two slide rail assemblies from being simultaneously opened or extended by a connecting member.

[0006] This is achieved by the slide rail mechanism according to claim 1. The dependent claims relate to corresponding further developments and improvements.

[0007] As will become more clearly apparent from the detailed description that follows, the slide rail mechanism includes a first slide rail assembly, a second slide rail assembly, and a connecting member. The first slide rail assembly includes a first rail and a second rail that is longitudinally displaceable relative to the first rail. The second slide rail assembly includes a third rail and a fourth rail that is longitudinally displaceable relative to the third rail. When the second rail is displaced in an opening direction relative to the first rail, the connecting member is moved to prevent the fourth rail from being displaced in the opening direction relative to the third rail. [Brief explanation of the drawings]

[0008] The invention will now be further illustrated by way of example with reference to the accompanying drawings, in which:

[0009] [Figure 1] 1 is a schematic diagram of a cabinet device according to an embodiment of the present invention; [Figure 2] 1 is a partial view of a cabinet device according to an embodiment of the present invention; [Figure 3] 1 is a diagram of the slide rail mechanism in a state in which the first slide rail assembly and the second slide rail assembly are retracted, according to an embodiment of the present invention. FIG. [Figure 4] 1 is a partial view of the slide rail mechanism in a state in which the first slide rail assembly and the second slide rail assembly are retracted in the embodiment of the present invention. FIG. [Figure 5] 1 is a cross-sectional view of the slide rail mechanism in a state in which the first slide rail assembly and the second slide rail assembly are retracted in the embodiment of the present invention. [Figure 6] FIG. 1 is a partial exploded perspective view of a slide rail mechanism according to an embodiment of the present invention. [Figure 7] 1 is a diagram of a first self-closing device according to an embodiment of the present invention, showing the first auxiliary member detached from the second auxiliary member. [Figure 8] 1 is a diagram of a first self-closing device according to an embodiment of the present invention, in which the first auxiliary member and the second auxiliary member are combined with each other. [Figure 9] FIG. 10 is a diagram of a slide rail mechanism according to an embodiment of the present invention, in which the second rail of the first slide rail assembly is displaced to a first extended position relative to the first rail of the first slide rail assembly, thereby driving the connecting member to a second predetermined position. [Figure 10] FIG. 10 is a cross-sectional view of a slide rail mechanism according to an embodiment of the present invention, in which the second rail of the first slide rail assembly is displaced to a first extended position relative to the first rail of the first slide rail assembly, thereby driving the connecting member to a second predetermined position. [Figure 11] 1 is a diagram of a slide rail mechanism when the first self-closing device is in a first state according to an embodiment of the present invention. FIG. [Figure 12] 10 is a diagram of the slide rail mechanism when the first self-closing device is in the second state according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings, which form a part hereof, and in which is shown, by way of illustration, specific embodiments in which the invention may be practiced. In this regard, directional terms such as "up," "down," "left," "right," "front," and "rear" are used with reference to the orientation of the figures being described. Components of the present invention may be oriented in many different directions. As such, directional terms are used for purposes of illustration and are in no way limiting. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not limiting. Also, unless specified, the term "connect" is intended to mean either an indirect or direct mechanical connection. Thus, when a first device is connected to a second device, the connection may be via a direct mechanical connection or an indirect mechanical connection via other devices or connections.

[0011] As shown in FIGS. 1 and 2 , the cabinet apparatus includes a cabinet 22 and a slide rail mechanism fitted to the cabinet 22. The cabinet 22 has a plurality of drawers arranged in the longitudinal direction, i.e., the height direction, and / or the transverse direction, i.e., the side direction, of the cabinet 22. In this embodiment, as an example, a first drawer 24a and a second drawer 24b may be arranged vertically in the cabinet 22. The slide rail mechanism includes a first slide rail assembly 26 and a second slide rail assembly 28. The first slide rail assembly 26 and the second slide rail assembly 28 are configured to be disposed on a wall W of the cabinet 22 to support the first drawer 24a and the second drawer 24b, respectively. The slide rail mechanism further includes a connecting member 30, which is movably attached to one of the cabinet 22, the first slide rail assembly 26, and the second slide rail assembly 28. In this embodiment, as an example, the connecting member 30 may be movably attached to the first slide rail assembly 26. However, the present invention is not limited to this embodiment.

[0012] As shown in FIGS. 3-5 , the first slide rail assembly 26 and the second slide rail assembly 28 may have substantially identical structures. For example, the first slide rail assembly 26 includes a first rail 32, e.g., a fixed rail, and a second rail 34, e.g., a movable rail, that is longitudinally displaceable relative to the first rail 32. The second slide rail assembly 28 includes a third rail 36, e.g., a fixed rail, and a fourth rail 38, e.g., a movable rail, that is longitudinally displaceable relative to the third rail 36. Preferably, the first slide rail assembly 26 further includes a first intermediate rail 40 movably mounted between the first rail 32 and the second rail 34. The second slide rail assembly 28 further includes a second intermediate rail 42 movably mounted between the third rail 36 and the fourth rail 38. The first intermediate rail 40 and the second intermediate rail 42 do not cooperate with the connecting member 30. It can be appreciated that in alternative embodiments, the first and second intermediate rails may be omitted. It should be noted that in this embodiment, as an example, the longitudinal direction, i.e., the length direction or displacement direction of the rail, may be parallel to the X-axis. The lateral direction, i.e., the lateral direction of the rail or the lateral direction of the cabinet 22, may be parallel to the Y-axis. The vertical direction, i.e., the height direction of the rail or the height direction of the cabinet 22, may be parallel to the Z-axis.

[0013] The connecting member 30 is movably mounted between the first slide rail assembly 26 and the second slide rail assembly 28 .

[0014] Preferably, the first rail 32 of the first slide rail assembly 26 and the third rail 36 of the second slide rail assembly 28 may have substantially the same structure, and the second rail 34 of the first slide rail assembly 26 and the fourth rail 38 of the second slide rail assembly 28 may have substantially the same structure. A detailed description of the second slide rail assembly 28 will be omitted for simplicity. In this embodiment, as an example, the first rail 32 of the first slide rail assembly 26 may include a first vertical portion 44, a first support portion 46, and a first horizontal portion 48 connected between the first vertical portion 44 and the first support portion 46. The first rail 32 of the first slide rail assembly 26 may be configured to be attached to the wall W of the cabinet 22 by a plurality of mounting features 50 on the first vertical portion 44. The connecting member 30 is movably attached to the first vertical portion 44 of the first rail 32 so as to be movable in the height direction of the cabinet 22, e.g., along the Z-axis. Additionally, the second rail 34 of the first slide rail assembly 26 and the fourth rail 38 of the second slide rail assembly 28 may be configured to support the first drawer 24a and the second drawer 24b, respectively.

[0015] Preferably, the first vertical portion 44 and the first support portion 46 are connected substantially perpendicularly to the first horizontal portion 48. The first vertical portion 44 has a first height K1, and the first support portion 46 has a second height K2 that is smaller than the first height K1. The first vertical portion 44 and the first support portion 46 are located on two opposite sides of the first horizontal portion 48.

[0016] Preferably, each of the first slide rail assembly 26 and the second slide rail assembly 28 includes a plurality of slide assist devices. For example, the first slide rail assembly 26 includes a first slide assist device and a second slide assist device. The first slide assist device is movably supported between the first rail 32 and the first intermediate rail 40 of the first slide rail assembly 26 to facilitate smooth relative displacement between the first rail 32 and the first intermediate rail 40 of the first slide rail assembly 26. The second slide assist device is movably supported between the second rail 34 and the first intermediate rail 40 of the first slide rail assembly 26 to facilitate smooth relative displacement between the second rail 34 and the first intermediate rail 40 of the first slide rail assembly 26.

[0017] Furthermore, connecting member 30 includes a first extension 52, a second extension 54, and an intermediate portion 56 connected between first extension 52 and second extension 54. As shown in FIG. 4 , a predetermined space S is disposed in first vertical portion 44 of first rail 32 of first slide rail assembly 26 and configured to at least partially accommodate first extension 52 of connecting member 30. Preferably, a plurality of retention features 58 are further disposed in first vertical portion 44 of first rail 32 of first slide rail assembly 26 and configured to retain or support first extension 52 of connecting member 30, facilitating stable movement of connecting member 30 relative to first rail 32 of first slide rail assembly 26.

[0018] Preferably, the connecting member 30 is a rod, and the longitudinal direction of the connecting member 30 is substantially parallel to the height direction of the cabinet 22 .

[0019] Preferably, a first self-closing device 60 and a second self-closing device 62 are disposed on the first slide rail assembly 26 and the second slide rail assembly 28, respectively. The first self-closing device 60 and the second self-closing device 62 may have substantially the same structure. For the sake of brevity, a detailed description of the second self-closing device 62 will be omitted. The first self-closing device 60 is disposed on the first rail 32 of the first slide rail assembly 26 and includes a first auxiliary member 64. The second self-closing device 62 is disposed on the third rail 36 of the second slide rail assembly 28 and includes a third auxiliary member 70.

[0020] Preferably, the first actuation feature 66 is disposed on the second rail 34 of the first slide rail assembly 26 and is movable together with the second rail 34 of the first slide rail assembly 26 when the second rail 34 of the first slide rail assembly 26 is displaced relative to the first rail 32 of the first slide rail assembly 26. The second actuation feature 68 is disposed on the fourth rail 38 of the second slide rail assembly 28 and is movable together with the fourth rail 38 of the second slide rail assembly 28 when the fourth rail 38 of the second slide rail assembly 28 is displaced relative to the third rail 36 of the second slide rail assembly 28. In this embodiment, by way of example, each of the first actuation feature 66 and the second actuation feature 68 may be a protrusion, a pin, or the like. However, the present invention is not limited to this embodiment. 3 and 4 , when the first slide rail assembly 26 is retracted, the second rail 34 of the first slide rail assembly 26 is in a first retracted position R relative to the first rail 32 of the first slide rail assembly 26, and the first auxiliary member 64 of the first self-closing device 60 releasably captures the first actuation feature 66 on the second rail 34 of the first slide rail assembly 26. As can be appreciated, when the second slide rail assembly 28 is retracted, the fourth rail 38 of the second slide rail assembly 28 is in a second retracted position relative to the third rail 36 of the second slide rail assembly 28, and the third auxiliary member 70 of the second self-closing device 62 releasably captures the second actuation feature 68 on the fourth rail 38 of the second slide rail assembly 28.

[0021] Preferably, the first self-closing device 60 further includes a second auxiliary member 72 disposed adjacent to the first auxiliary member 64. The second self-closing device 62 further includes a fourth auxiliary member 74 disposed adjacent to the third auxiliary member 70.

[0022] 5, the first through-hole 76 is located in the first rail 32 of the first slide rail assembly 26, e.g., the first horizontal portion 48 of the first rail 32 of the first slide rail assembly 26. The second through-hole 82 is located in the third rail 36 of the second slide rail assembly 28, e.g., the second horizontal portion 80 of the third rail 36 of the second slide rail assembly 28.

[0023] 4 and 5 , when the second rail 34 of the first slide rail assembly 26 is in the first retracted position R relative to the first rail 32 of the first slide rail assembly 26 and the fourth rail 38 of the second slide rail assembly 28 is in the second retracted position relative to the third rail 36 of the second slide rail assembly 28, the connecting member 30 is in the first predetermined position H1. Moreover, when the connecting member 30 is in the first predetermined position H1, the connecting member 30, for example, the second extension portion 54 of the connecting member 30, does not block the fourth auxiliary member 74 of the second self-closing device 62.

[0024] As shown in FIG. 6 , the first self-closing device 60 further includes a first elastic member 84 configured to apply an elastic force to the first auxiliary member 64 and / or the second auxiliary member 72. In this embodiment, as an example, the first elastic member 84 may be a compression spring or a tension spring. However, the present invention is not limited to this embodiment. As shown in FIG. 4 , the first auxiliary member 64 includes a first catch 86 configured to releasably capture the first actuation feature 66 on the second rail 34 of the first slide rail assembly 26. In this embodiment, as an example, as shown in FIG. 4 , the first catch 86 may be a hook having an auxiliary space configured to receive a portion of the first actuation feature 66. However, the present invention is not limited to this embodiment.

[0025] Preferably, the first self-closing device 60 further includes a first base 88, which is configured to connect, e.g., fixedly connect, to the first rail 32 of the first slide rail assembly 26, e.g., the first horizontal portion 48 of the first rail 32.

[0026] Preferably, the first elastic member 84 includes a first end 94 a connected to the second support member 72 and a second end 94 b connected to the first base 88 .

[0027] Preferably, one of the first auxiliary member 64 and the second auxiliary member 72 includes a first guide feature 96. In the present embodiment, as an example, the second auxiliary member 72 includes the first guide feature 96. However, the present invention is not limited to this embodiment. Furthermore, the connecting member 30, for example, the first extension portion 52 of the connecting member 30, includes a second guide feature 98, and the second guide feature 98 cooperates with the first guide feature 96 to allow the connecting member 30 to move along the second auxiliary member 72. In the present embodiment, as an example, as shown in FIG. 4 , at least one of the first guide feature 96 and the second guide feature 98 may be an inclined surface or an arcuate surface. However, the present invention is not limited to this embodiment.

[0028] Preferably, the first slide rail assembly 26 further includes a first damping device 100, and the second slide rail assembly 28 further includes a second damping device. The first damping device 100 and the second damping device may have substantially the same structure. A detailed description of the second damping device will be omitted for brevity. The first damping device 100 includes a first object 102 and a second object 104 that are movable relative to each other. One of the first object 102 and the second object 104 is a cylinder containing a damping medium and / or an auxiliary spring therein, and the other of the first object 102 and the second object 104 is a piston rod. As shown in FIG. 6 , the first damping device 100 is located in a position corresponding to the first auxiliary member 64. When the second rail 34 of the first slide rail assembly 26 is displaced to the first retracted position R relative to the first rail 32 of the first slide rail assembly 26, one of the first object 102 and the second object 104 can abut against the first auxiliary member 64 to reduce the displacement speed of the second rail 34 of the first slide rail assembly 26. In this embodiment, as an example, the second object 104 may be configured to abut against the first auxiliary member 64.

[0029] 7 and 8, the first auxiliary member 64 and the second auxiliary member 72 are connected to each other. In this embodiment, as an example, the first auxiliary member 64 and the second auxiliary member 72 may be pivotally connected to each other via a shaft 106. However, the present invention is not limited to this embodiment. Similarly, the third auxiliary member 70 and the fourth auxiliary member 74 may be pivotally connected to each other. However, the present invention is not limited to this embodiment.

[0030] Preferably, the first support member 64 includes a first support section 108, and the second support member 72 includes a second support section 110. The first support section 108 and the second support section 110 are configured to cooperate with the first base 88. In this embodiment, as an example, each of the first support section 108 and the second support section 110 may be a protrusion.

[0031] For illustrative purposes, FIG. 9 shows a first actuation feature 66 located on the second rail 34 of the first slide rail assembly 26 and a second actuation feature 68 located on the fourth rail 38 of the second slide rail assembly 28 without the first intermediate rail 40 and second rail 34 of the first slide rail assembly 26 and the second intermediate rail 42 and fourth rail 38 of the second slide rail assembly 28.

[0032] When the second rail 34 of the first slide rail assembly 26 is displaced in the opening direction D1 relative to the first rail 32 of the first slide rail assembly 26, the connecting member 30 is moved to prevent the fourth rail 38 of the second slide rail assembly 28 from being displaced in the opening direction D1 relative to the third rail 36 of the second slide rail assembly 28.

[0033] For example, when the second rail 34 of the first slide rail assembly 26 is displaced in the opening direction D1 relative to the first rail 32 of the first slide rail assembly 26 away from the first retracted position R shown in FIG. 3 to drive the first actuation feature 66 from the position shown in FIG. 4 to the position shown in FIG. 9 , the first actuation feature 66 is captured by the first auxiliary member 64, which moves with the second rail 34 of the first slide rail assembly 26. This causes the first auxiliary member 64 and the second auxiliary member 72 to move in response to the displacement of the second rail 34 of the first slide rail assembly 26. Thus, the connecting member 30 may be driven from the first predetermined position H1 shown in FIG. 5 to the second predetermined position H2 shown in FIG. 10 in the height direction M by abutting the first guide feature 96 of the second auxiliary member 72 with the second guide feature 98 of the connecting member 30, e.g., the first extension 52 of the connecting member 30. 10 , when the connecting member 30 is in the second predetermined position H2, the connecting member 30, for example, the second extension portion 54 of the connecting member 30, passes through the third rail 36 of the second slide rail assembly 28, for example, the second through-hole 82 in the second horizontal portion 80 of the third rail 36 of the second slide rail assembly 28. This blocks the fourth auxiliary member 74, preventing the fourth rail 38 of the second slide rail assembly 28 from displacing relative to the third rail 36 of the second slide rail assembly 28 in the opening direction D1, i.e., holding the fourth rail 38 of the second slide rail assembly 28 in the second retracted position shown in FIG. 5 . Therefore, the fourth rail 38 of the second slide rail assembly 28 is prevented from displacing relative to the third rail 36 of the second slide rail assembly 28 in the opening direction D1, and therefore the second drawer 24b cannot be opened relative to the cabinet 22.

[0034] 11 and 12 , the first support section 108 of the first support member 64 and the second support section 110 of the second support member 72 are located on the longitudinal path 90 of the first base 88. Preferably, the first base 88 further includes a curved path 92 that is curved relative to the longitudinal path 90. The first support member 64 moves along the longitudinal path 90 and the curved path 92.

[0035] When the second rail 34 of the first slide rail assembly 26 is displaced in the opening direction D1 from the position shown in FIG. 11 relative to the first rail 32 of the first slide rail assembly 26 to the first extended position E shown in FIG. 12 , the first auxiliary member 64 is driven by the first actuation feature 66 captured by the first auxiliary member 64 to pivot relative to the second auxiliary member 72 via the curved path 92 to the engaged position shown in FIG. 12 and then disengage from the first actuation feature 66. In this embodiment, as an example, as shown in FIG. 12 , the first auxiliary member 64 may include a corresponding support section 112 configured to engage with a wall of the curved path 92 to hold the first auxiliary member 64 in the pivoted position so as to maintain the elastic deformation of the elastic member 84. Moreover, when the second rail 34 of the first slide rail assembly 26 is in the first extended position E, the second object 104 is fully extended relative to the first object 102. That is, the first damping device 100 is in a pre-buffered state.

[0036] It should be noted that when the second rail 34 of the first slide rail assembly 26 is displaced a predetermined distance in the retraction direction D2 from the first extended position E relative to the first rail 32 of the first slide rail assembly 26, as shown in FIG. 12 , the corresponding support section 112 of the first auxiliary member 64 is driven by the abutment of the first auxiliary member 64 and the first actuation feature 66 to pivot to the disengaged position as shown in FIG. 11 . This is to disengage from the wall of the curved path 92 and to capture the first actuation feature 66 with the first capture portion 86 of the first auxiliary member 64. This allows the second rail 34 to be driven in the retraction direction D2 to the first retracted position R by the elastically deformed first elastic member 84.

[0037] Preferably, while the second rail 34 is driven by the elastic member 84 to displace in the retraction direction D2 to the first retraction position R, the first auxiliary member 64 hits the second object 104 of the first damping device 100 to drive the second object 104 of the first damping device 100 to move relative to the first object 102 of the first damping device 100, thereby reducing the displacement speed of the second rail 34.

[0038] It should be noted that when the second rail 34 of the first slide rail assembly 26 is retracted relative to the first rail 32 of the first slide rail assembly 26 and the fourth rail 38 of the second slide rail assembly 28 is opened or extended relative to the third rail 36 of the second slide rail assembly 28, the fourth auxiliary member 74 moves in the opening direction D1 to a blocking position to block the connecting member 30. This prevents the connecting member 30 from moving in the height direction M, i.e., the connecting member 30 can be held at the first predetermined height H1. The connecting member 30 held at the first predetermined height H1 can block the second auxiliary member 72 to prevent the second rail 34 of the first slide rail assembly 26 from displacing in the opening direction D1 relative to the first rail 32 of the first slide rail assembly 26.

[0039] From the above, the slide rail mechanism has the following features.

[0040] 1. The connecting member 30 is movably attached to one of the cabinet 22, the first slide rail assembly 26, and the second slide rail assembly 28. When the connecting member 30 is movably attached to the first slide rail assembly 26, for example, the first rail 32 of the first slide rail assembly 26, the cabinet 22 does not need to include an additional structure for attaching the connecting member 30. Therefore, the slide rail mechanism has the advantage of being easy to assemble.

[0041] 2. The connecting member 30 is configured to cooperate with the second auxiliary member 72 of the self-closing device 60, which is movably connected to the first auxiliary member 64. Therefore, the slide rail mechanism has the advantages of a simplified structure and improved operability.

[0042] 3. When the second rail 34 of the first slide rail assembly 26 is opened or extended relative to the first rail 32 of the first slide rail assembly 26, the fourth rail 38 of the second slide rail assembly 28 cannot extend relative to the third rail 36 of the second slide rail assembly 28. When the fourth rail 38 of the second slide rail assembly 28 is opened or extended relative to the third rail 36 of the second slide rail assembly 28, the second rail 34 of the first slide rail assembly 26 cannot extend relative to the first rail 32 of the first slide rail assembly 26. Therefore, the first drawer 24a and the second drawer 24b cannot be opened simultaneously relative to the cabinet 22, preventing the cabinet 22 from falling due to the first drawer 24a and the second drawer 24b being opened. Therefore, the slide rail mechanism improves safety during use.

[0043] Those skilled in the art will readily recognize that numerous modifications and variations of the device and method may be made while retaining the teachings of the present invention. Accordingly, it is intended that the above disclosure be construed as limited only by the metes and bounds of the appended claims.

Claims

1. a first slide rail assembly including a first rail and a second rail longitudinally displaceable relative to the first rail; a second slide rail assembly including a third rail and a fourth rail longitudinally displaceable relative to the third rail; a connecting member; When the second rail is displaced in an opening direction relative to the first rail, the connecting member is moved to prevent the fourth rail from being displaced in the opening direction relative to the third rail; the first rail includes a vertical portion, a support portion, and a horizontal portion connected between the vertical portion and the support portion; the second rail is configured to support a drawer and includes a first portion, a second portion, and a second horizontal portion connected between the first portion and the second portion, the second horizontal portion being horizontal and disposed along the horizontal portion; a damping device disposed between the horizontal portion of the first rail and the second rail, the damping device configured to reduce a displacement speed of the second rail while the second rail is displaced to a retracted position in a retraction direction opposite to the opening direction; the first slide rail assembly further includes a self-closing device disposed on the first rail, the self-closing device including an elastic member, and the connecting member is moved to prevent the fourth rail from displacing in the opening direction relative to the third rail; the elastic member is elastically deformed while the second rail is displaced from a retracted position to an extended position in the opening direction relative to the first rail, the second rail is configured to be driven by the elastic member in the retraction direction to the retracted position while the second rail is displaced from the extended position in the retraction direction relative to the first rail, The self-closing device further includes a first auxiliary member, and while the second rail is displaced from the retracted position to the extended position in the opening direction relative to the first rail, the second rail drives the first auxiliary member to elastically deform the elastic member, The self-closing device further includes a second auxiliary member, and while the second rail is displaced from the retracted position to the extended position in the opening direction relative to the first rail, the second rail drives one of the first auxiliary member and the second auxiliary member to move the connecting member, thereby preventing the fourth rail from displacing in the opening direction relative to the third rail; A slide rail mechanism, wherein the second auxiliary member and the first auxiliary member are pivotally connected to each other, and the self-closing device further includes a base, a longitudinal path formed in the base.

2. a slide rail mechanism adapted to a cabinet, the first slide rail assembly and the second slide rail assembly being disposed in the cabinet, and the connecting member being movably attached to one of the cabinet and the first rail; 2. The slide rail mechanism of claim 1, wherein the connecting member is movably attached to the vertical portion of the first rail and is movable in a height direction, the vertical portion and the support portion are connected perpendicularly to the horizontal portion, the vertical portion has a first height in the height direction, the support portion has a second height in the height direction that is smaller than the first height, and the vertical portion is configured to be attached to the cabinet.

3. The slide rail mechanism according to claim 1 , wherein the connecting member is movably attached to the vertical portion of the first rail and is movable in a height direction.

4. 4. The slide rail mechanism of claim 3, wherein the vertical portion and the support portion are connected perpendicularly to the horizontal portion, the vertical portion having a first height in the height direction, and the support portion having a second height in the height direction that is smaller than the first height.

5. 5. The slide rail mechanism according to claim 1, wherein the damping device is configured to reduce a displacement speed of the second rail while the second rail is driven by the elastic member to displace in the retracted direction to the retracted position.

6. 6. The slide rail mechanism of claim 5, wherein said damping device further comprises a first body and a second body movable relative to one another.

7. 5. The slide rail mechanism of claim 1, wherein the first slide rail assembly further includes an intermediate rail movably mounted between the first rail and the second rail.

Images