Slide rail assembly

Abstract

To provide a slide rail assembly that can compensate for errors of relative positions of at least two slide rails.SOLUTION: A slide rail assembly 20 comprises a first rail 22, a second rail 24, an auxiliary slide device, a compensation device 38, and a third rail 26. The auxiliary slide device is movably attached between the first rail and the second rail. The compensation device is movably attached to the second rail. The second rail is constituted so as to be movably attached to the third rail. The compensation device is constituted so as to compensate for errors of relative positions of the first rail and the second rail.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] U.S. Patent No. 1,127,2784 (Patent Document 1) discloses a drawer guide, which includes at least two guide rails that are displaceable relative to one another and a slide carriage having rolling elements for transmitting loads. The slide carriage is movably supported between the at least two guide rails. The relative positions of the at least two guide rails are preset to a predetermined relative position as the slide carriage moves. The drawer guide further includes a compensation device that compensates for an error in the relative positions of the at least two guide rails, i.e., a deviation from the predetermined relative position. The compensation device has an operating device and a switching device. The operating device is configured to be operated by one of the at least two guide rails to compensate for the error in the relative positions of the at least two guide rails. The switching device is configured to disengage the compensation device from one of the at least two guide rails when the at least two guide rails are in the predetermined relative position. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] U.S. Patent No. 1,127,2784 [Patent Document 2] U.S. Patent No. 9,526,334 [Patent Document 3] U.S. Patent No. 9,498,061 Summary of the Invention

[0004] However, to meet various demands, it becomes a significant challenge to provide an alternative solution for compensating for the relative position error of at least two slide rails.

[0005] With this in mind, the present invention contemplates providing a slide rail assembly that utilizes a compensating device to compensate for errors in the relative position of at least two slide rails.

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

[0007] As will be more clearly understood from the detailed description set forth below, the claimed slide rail assembly comprises: a first rail displaceable in a first direction or a second direction opposite to the first direction; a second rail; a first feature disposed on the first rail; a compensation device attached to the second rail and movable between a first state and a second state, the compensation device including the second feature; and a third rail; the second rail is movably attached to the third rail, the third rail including a support section and a blocking section, the support section supporting the second rail or the compensation device. After the second rail is displaced to an advanced position relative to the first rail, the first rail is displaced in a first direction, thereby driving the blocking portion of the third rail and the compensation device in the first state to block each other; the first rail is displaced a predetermined distance in the first direction, driving the first feature portion and the compensation device in the first state to abut each other, stopping the second rail and driving the compensation device to move from the first state to the second state; when the compensation device is in the second state, the blocking portion of the third rail does not block the compensation device. [Brief explanation of the drawings]

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

[0009] [Figure 1]1 is a schematic diagram of a slide rail assembly according to an embodiment of the present invention; [Figure 2] FIG. 2 is an exploded view of the slide rail assembly according to the embodiment of the present invention. [Figure 3] FIG. 2 is a partial view of a slide rail assembly according to an embodiment of the present invention. [Figure 4] 2A and 2B are diagrams of different views of a compensation device according to an embodiment of the present invention; [Figure 5] 2A and 2B are diagrams of different views of a compensation device according to an embodiment of the present invention; [Figure 6] FIG. 2 is a diagram of a slide rail assembly in a first retracted state with the second rail in position relative to the first rail, according to an embodiment of the invention. [Figure 7] FIG. 10 is a diagram of a slide rail assembly in a second retracted state where the second rail is positioned in a lugged position relative to the first rail, according to an embodiment of the present invention. [Figure 8] 8 is a diagram showing the first rail being displaced in a first direction from the position shown in FIG. 7 to drive the first feature into contact with the second feature of the compensation device, according to an embodiment of the present invention. [Figure 9] 9 is a diagram showing an embodiment of the present invention in which the first rail is displaced in a first direction from the position shown in FIG. 8, and the second rail is driven to be displaced from the first position to a second position in the first direction. [Figure 10] 10 is a diagram showing how the first rail is displaced in a first direction from the position shown in FIG. 9 and how the compensation device is driven to move from the first position to a second position, according to an embodiment of the present invention. [Figure 11] FIG. 2 is a diagram of a slide rail assembly in an extended state according to an embodiment of the present invention. [Figure 12] FIG. 10 is a diagram of a slide rail assembly in a third retracted state, with the second rail in an advanced position relative to the first rail, according to an embodiment of the invention. [Figure 13]FIG. 13 is a diagram showing an embodiment of the present invention in which the blocking portion and the compensation device are driven to block each other in order to displace the first rail from the position shown in FIG. 12 in a first direction and stop the second rail. [Figure 14] 14 is a diagram showing the first rail being displaced in a first direction from the position shown in FIG. 13 to drive the first feature into contact with the second feature of the compensation device, according to an embodiment of the present invention. [Figure 15] 15 is a diagram illustrating an embodiment of the present invention in which the first rail is displaced in a first direction from the position shown in FIG. 14 and the compensation device is driven to move from the first state to the second state to terminate the blocking relationship between the blocking portion and the compensation device. [Figure 16] 1A and 1B are diagrams of a slide rail assembly adapted to fit furniture, according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] In the following detailed description of the preferred embodiment, 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 invention may be oriented in many different directions. As such, directional terms are used for purposes of explanation and are in no way limiting. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive. Furthermore, 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 via an indirect mechanical connection via a connection to another device.

[0011] As shown in FIGS. 1 and 2 , slide rail assembly 20 includes first rail 22, second rail 24, third rail 26, and first auxiliary slide device 28. Preferably, slide rail assembly 20 further includes second auxiliary slide device 30. Second rail 24 is movably mounted between third rail 26 and first rail 22. First rail 22 and second rail 24 are longitudinally displaceable relative to each other and / or relative to third rail 26. In this embodiment, by way of example, the longitudinal direction is defined by the length direction of the slide rail, e.g., first rail 22, second rail 24, or third rail 26, and may be parallel to the X-axis. The transverse direction is defined by the lateral or width direction of the slide rail and may be parallel to the Y-axis. The vertical direction is defined by the height direction of the slide rail and may be parallel to the Z-axis.

[0012] Furthermore, the second rail 24 is configured to be movably attached to the third rail 26. The first rail 22 is configured to be movably attached to the second rail 24. The first auxiliary sliding device 28 is movably attached between the first rail 22 and the second rail 24 and facilitates relative displacement between the first rail 22 and the second rail 24. For example, the first auxiliary sliding device 28 includes at least one first rotating member 32, which is configured to be rotatably supported between the first rail 22 and the second rail 24. The first rotating member 32 may be a roller or a ball. The second auxiliary sliding device 30 is movably attached between the second rail 24 and the third rail 26 and facilitates relative displacement between the second rail 24 and the third rail 26. For example, the second auxiliary sliding device 30 includes at least one second rotating member 34, which is configured to be rotatably supported between the second rail 24 and the third rail 26. The second rotating member 34 may be a roller or a ball.

[0013] The slide rail assembly 20 further includes a first feature 36 and a compensation device 38 .

[0014] The first feature 36 and the compensation device 38 are respectively disposed on one of the first rail 22 and the second rail 24. In this embodiment, for example, the first feature 36 is disposed on the first rail 22, and the compensation device 38 is movably attached to the second rail 24. Specifically, the first feature 36 may be disposed directly or indirectly on the first rail 22, and the compensation device 38 may be pivotally connected to the second rail 24 by a shaft member 40. Preferably, the first rail 22 has a first end portion 22a and a second end portion 22b located opposite the first end portion 22a. The second rail 24 has a first end portion 24a and a second end portion 24b located opposite the first end portion 24a. For example, the first end portion 22a and the second end portion 22b of the first rail 22 are the front and rear end portions of the first rail 22, respectively. The first end portion 24a and the second end portion 24b of the second rail 24 are the front and rear end portions, respectively, of the second rail 24. Preferably, the first feature 36 is a protruding structure disposed adjacent to the first end portion 22a of the first rail 22. The compensation device 38 is disposed adjacent to the first end portion 24a of the second rail 24. However, the present invention is not limited to this embodiment.

[0015] As shown in FIG. 3 , the third rail 26 has a first end portion 26a and a second end portion 26b located opposite the first end portion 26a. For example, the first end portion 26a and the second end portion 26b of the third rail 26 are the front and rear end portions of the third rail 26, respectively. The third rail 26 includes a support section 42 and a blocking portion 44. The support section 42 extends longitudinally between the first end portion 26a and the second end portion 26b of the third rail 26 and is configured to support the second rail 24 and / or the compensation device 38. In this embodiment, for example, the blocking portion 44 is a protrusion located on a lateral side 46 of the support section 42 and adjacent to the first end portion 26a of the third rail 26. However, the present invention is not limited to this embodiment.

[0016] 4 and 5, the compensation device 38 includes a body 48, a working member 50, a predetermined feature 52, a resilient member 54, and a resilient portion 56. Preferably, the compensation device 38 further includes a restorative resilient member 58.

[0017] The body 48 includes a first body portion 60 and a second body portion 62 connected to the first body portion 60. By way of example in this embodiment, the second body portion 62 is connected substantially perpendicular to the first body portion 60. However, the invention is not limited to this embodiment. The shaft member 40 passes laterally or transversely through the second body portion 62 to provide a pivotal connection between the compensator 38 and the second rail 24.

[0018] The working member 50 is movably attached to the main body 48. The second feature 64 is disposed on the working member 50 and is configured to cooperate with the first feature 36. Preferably, the working member 50 is pivotally connected to a predetermined portion 68 of the first body portion 60 by a connecting member 66. Preferably, the working member 50 has a first end and a second end located opposite the first end. For example, the first end and the second end of the working member 50 are the front end and the rear end of the working member 50, respectively. Preferably, the first body portion 60 includes a blocking wall 70 located adjacent to the first end of the working member 50 to stop the working member 50 at the working position K, and an escape space located adjacent to the second end of the working member 50 to allow the working member 50 to move from the working position K.

[0019] As shown in FIG. 5 , the predetermined feature 52 is disposed on the body 48. The predetermined feature 52 may be disposed directly or indirectly on the second body portion 62 of the body 48. By way of example in this embodiment, the predetermined feature 52 may be a protrusion. However, the present invention is not limited to this embodiment. Preferably, the body 48 has a first end 48a and a second end 48b opposite the first end 48a. For example, the first end 48a and the second end 48b of the body 48 are the front and rear ends of the body 48, respectively. Preferably, the predetermined feature 52 is spaced a distance G from the first end 48a of the body 48.

[0020] The elastic member 54 (the elastic biasing member 54) is configured to apply an elastic force (biasing force) to the compensation device 38. In this embodiment, by way of example, a portion of the elastic member 54 is attached within the receiving space 72 of the first body portion 60, and another portion of the elastic member 54 extends from within the receiving space 72.

[0021] The resilient portion 56 is disposed on the body 48. In this embodiment, by way of example, the resilient portion 56 is an extension arm, although the present invention is not limited to this embodiment.

[0022] The restoring elastic member 58 is configured to apply a restoring elastic force to the working member 50 so as to drive the working member 50 to move toward the working position K.

[0023] As shown in FIG. 6 , when the slide rail assembly 20 is in the retracted state, the compensation device 38 is in the first state S1 in response to the elastic force applied by the elastic member 54, and the working member 50 is held at the working position K in response to the restoring elastic force applied by the restoring elastic member 58. Additionally, as shown in FIG. 6 , at this moment, the second feature 64 is spaced a first longitudinal distance L1 from the first feature 36. The predetermined feature 52 is located in a position corresponding to the blocking portion 44 of the third rail 26; for example, the predetermined feature 52 and the blocking portion 44 of the third rail 26 are aligned with each other in the longitudinal direction. Preferably, as shown in FIG. 6 , at this moment, the elastic member 54 is abutted between the main body 48 and the second rail 24, and the elastic portion 56 is located adjacent to the second rail 24. However, the present invention is not limited to this embodiment.

[0024] 6, when the slide rail assembly 20 is in the retracted state, the first rail 22 is in a retracted position R relative to the third rail 26. Ideally, when the first rail 22 is displaced to the retracted position R, the second rail 24 is configured to displace to a predetermined position P0 in response to the movement of the first rail 22 to the retracted position R. However, after long-term use, the second rail 24 may be positioned away from the predetermined position P0 due to repeated relative opening and retracting movements of the first rail 22 and the second rail 24 relative to the third rail 26, operational errors, and / or unexpected external forces.

[0025] As shown in FIG. 7, when the second rail 24 is at a lug position P1 (stagnation position P1) that is deviated from the predetermined position P0 relative to the first rail 22, the second feature 64 is spaced from the first feature 36 by a second longitudinal distance L2 that is smaller than the first longitudinal distance L1.

[0026] As shown in Figures 7 to 10, after the second rail 24 is displaced to the lug position P1, the first rail 22 is displaced from the retracted position R in a first direction, for example, the opening direction D1, so that the first feature 36 and the second feature 64 of the compensation device 38 in the first state S1 are driven and abut against each other, driving the second rail 24, and the first rail 22, together with the first rail 22, to displace by a first predetermined distance in the opening direction D1, for example, from the first position M1 to the second position M2, until the shaft member 40 drives the compensation device 38 to pivot from the first state S1 in the first pivot direction R1 to the second state S2 relative to the third rail 26, thereby compensating for the lug position error, i.e., the deviation between the lug position P1 and the predetermined position P0. In other words, when the compensation device 38 is in the second state S2, the synchronous displacement relationship between the second rail 24 and the first rail 22 is terminated to allow further displacement of the first rail 22 in the opening direction D1 without any hindrance. This is because the first feature 36 does not abut against the second feature 64 of the compensation device 38 in the second state S2. In addition, as shown in FIG. 10 , when the compensation device 38 is in the second state S2, the elastic member 54 elastically deforms, and the elastic portion 56 moves away from the second rail 24. Furthermore, as shown in FIG. 10 , when the compensation device 38 is in the second state S2, the predetermined feature 52 of the compensation device 38 is moved from a position corresponding to the blocking portion 44 of the third rail 26. For example, the predetermined feature 52 of the compensation device 38 is longitudinally misaligned from the blocking portion 44 of the third rail 26. In other words, when the compensating device 38 is in the second state S2, the blocking relationship between the blocking portion 44 of the third rail 26 and the predetermined feature 52 of the compensating device 38 is prevented (prevented) to allow further displacement of the second rail 24 in the opening direction D1 without any obstruction because the predetermined feature 52 of the compensating device 38 is longitudinally misaligned from the blocking portion 44 of the third rail 26.

[0027] Preferably, one of the first feature 36 and the second feature 64 includes a first guide portion 74. For example, the first guide portion 74 may be an inclined surface or an arcuate surface. In this embodiment, the first feature 36 includes the first guide portion 74. However, the present invention is not limited to this embodiment. When the second rail 24 is displaced synchronously with the first rail 22 relative to the third rail 26 from the first position M1 shown in FIG. 8 in the opening direction D1 to the second position M2 shown in FIG. 9, the compensating device 38 is displaced along the support section 42 of the third rail 26 and moves beyond the first end portion 26a of the third rail 26. After the compensating device 38 moves beyond the first end portion 26a of the third rail 26, the compensating device 38 is freely driven by the abutment between the first guide portion 74 and the second feature 64, and moves from the first state S1 shown in FIG. 9 in the first pivoting direction R1 to the second state S2 shown in FIG. 10.

[0028] Preferably, a guide section 76 is formed at the connection between the support section 42 and the first end portion 26a of the third rail 26 to facilitate movement of the compensation device 38 from the first state S1 to the second state S2 relative to the third rail 26. For example, the guide section 76 may be a chamfered edge.

[0029] 11 , after the synchronous displacement relationship between second rail 24 and first rail 22 ends and the blocking relationship between blocking portion 44 of third rail 26 and predetermined feature 52 of compensation device 38 is prevented, first rail 22 and second rail 24 can be individually displaced in opening direction D1 relative to third rail 26, placing first rail 22 in extended position E, e.g., a fully extended position, thereby switching slide rail assembly 20 to the extended state shown in FIG. 11 . When slide rail assembly 20 is in the extended state, i.e., when first rail 22 is in extended position E, first end portion 22a of first rail 22 and first end portion 24a of second rail 24 extend beyond first end portion 24a of second rail 24 and first end portion 26a of third rail 26, respectively.

[0030] Preferably, when the slide rail assembly 20 moves from the state shown in Fig. 10 to the extended state shown in Fig. 11, the compensation device 38 moves in a second pivot direction R2, which is opposite to the first pivot direction R1, from the second state S2 shown in Fig. 10 to the first state S1 shown in Fig. 11 in response to the elastic force applied by the elastic member 54. When the compensation device 38 moves from the second state S2 to the first state S1, the elastic portion 56 is configured to abut against the second rail 24 to provide a noise reduction effect and / or a shock buffering effect.

[0031] It should be noted that after compensation of the deviation between lug position P1 and predetermined position P0 has been achieved, in response to displacement of first rail 22 from extended position E to retracted position R in a second direction, e.g., retraction direction D2, second rail 24 can be driven to displace back to predetermined position P0 shown in FIG. 6 rather than lug position P1.

[0032] As shown in FIG. 12, when the second rail 24 is in a forward position P2 offset from a predetermined position P0 relative to the first rail 22, the second feature 64 is spaced from the first feature 36 by a third longitudinal distance L3 that is greater than the first longitudinal distance L1.

[0033] 12 to 15, after the second rail 24 has been displaced to the forward position P2, the first rail 22 is displaced from the retracted position R in the opening direction D1, which drives the blocking portion 44 of the third rail 26 and the predetermined feature 52 of the compensating device 38 in the first state S1 to block each other, stopping the second rail 24 until the first rail 22 is displaced in the opening direction D1 by a second predetermined distance, e.g., a distance N from the position shown in FIG. 13 to the position shown in FIG. 14, thereby compensating for the forward position error, i.e., the deviation between the forward position P2 and the predetermined position P0. The first feature 36 and the second feature 64 of the compensating device 38 in the first state S1 abut against each other, which drives the compensating device 38 to pivot from the first state S1 in the first pivot direction R1 via the shaft member 40. In other words, when the compensation device 38 is in the second state S2, the blocking portion 44 of the third rail 26 does not block the predetermined feature 52 of the compensation device 38.

[0034] As shown in FIG. 15 , when the compensating device 38 is in the second state S2, the first feature 36 is not blocked by the second feature 64 of the compensating device 38 to allow further displacement of the first rail 22 in the opening direction D1. Additionally, as shown in FIG. 15 , when the compensating device 38 is in the second state S2, the predetermined feature 52 of the compensating device 38 is moved from a position corresponding to the blocking portion 44 of the third rail 26, e.g., the predetermined feature 52 of the compensating device 38 is longitudinally misaligned from the blocking portion 44 of the third rail 26. This terminates the blocking relationship between the blocking portion 44 of the third rail 26 and the predetermined feature 52 of the compensating device 38, allowing further displacement of the second rail 24 in the opening direction D1. Additionally, as shown in FIG. 15 , when the compensating device 38 is in the second state S2, the elastic member 54 is elastically deformed, and the elastic portion 56 is moved away from the second rail 24.

[0035] Preferably, as shown in Figure 14, when the blocking portion 44 of the third rail 26 blocks the predetermined feature 52 of the compensation device 38, the compensation device 38 exceeds the first end portion 26a of the third rail 26. This allows the compensation device 38 to be driven by the abutment of the first guide portion 74 and the second feature 64, and to move from the first state S1 shown in Figure 14 in the first pivot direction R1 to the second state S2 shown in Figure 15.

[0036] In addition, as shown in FIG. 15, after the blocking relationship between the blocking portion 44 of the third rail 26 and the predetermined feature 52 of the compensation device 38 is terminated, the first rail 22 and the second rail 24 can be individually displaced in the opening direction D1 relative to the third rail 26, and by placing the first rail 22 in the extended position E, the slide rail assembly 20 is switched to the extended state as shown in FIG. 11.

[0037] Preferably, when the slide rail assembly 20 moves from the state shown in Fig. 15 to the extended state shown in Fig. 11, the compensation device 38 moves in the second pivot direction R2 from the second state S2 shown in Fig. 15 to the first state S1 shown in Fig. 11 in response to the elastic force applied by the elastic member 54. When the compensation device 38 moves from the second state S2 to the first state S1, the elastic portion 56 is configured to abut against the second rail 24 to provide a noise reduction effect and / or a shock buffering effect.

[0038] It should be noted that after compensation of the deviation between the forward position P2 and the predetermined position P0 has been achieved, in response to the displacement of the first rail 22 from the extended position E in the backward direction D2 to the backward position R, the second rail 24 can be driven and displaced in the opposite direction, not to the forward position P2, but to the predetermined position P0 shown in Figure 6.

[0039] Preferably, one of the first feature 36 and the second feature 64 includes a second guide portion 78. For example, the second guide portion 78 may be an inclined surface or an arcuate surface. In this embodiment, for example, the first feature 36 includes the second guide portion 78, which is located opposite the first guide portion 74. Preferably, the first guide portion 74 and the second guide portion 78 are located adjacent to the front and rear sides of the first feature 36. However, the present invention is not limited to this embodiment. When the first rail 22 is displaced from the extended position E to the retracted position R, the second guide portion 78 is configured to abut against the working member 50 to drive the working member 50 to pivot from the working position K in the predetermined pivot direction r, allowing the first feature 36 to pass by the working member 50 in the retracted direction D2. After the first feature portion 36 passes the working member 50 in the backward direction D2, the working member 50 can pivot back to the working position K in response to the restoring elastic force applied from the restoring elastic member 58.

[0040] 11 and 16, slide rail assemblies 20 may be fitted to furniture. For example, two slide rail assemblies 20 may be symmetrically mounted between a drawer 82 and a cabinet body 80 to facilitate movement of the drawer 82 relative to the cabinet body 80. Specifically, the third rail 26 of each of the two slide rail assemblies 20 is configured to be mounted to the cabinet body 80, and the first rail 22 of each of the two slide rail assemblies 20 is configured to support the drawer 82.

[0041] In conclusion, the slide rail assembly 20 has the following features:

[0042] 1. The slide rail assembly 20 can utilize a compensating device 38 to compensate for errors in the relative position of at least two slide rails, e.g., the first rail 22 and the second rail 24.

[0043] 2. Whether the second rail 24 is in the lug position P1, the forward position P2 or the predetermined position P0, the first rail 22 displacing from the retracted position R in the opening direction D1 drives the first feature 36 and the second feature 64 of the compensation device 38 in the first state S1 to abut against each other until the compensation device 38 is driven to move from the first state S1 to the second state S2.

[0044] 3. When the compensation device 38 moves from the second state S2 to the first state S1, the elastic portion 56 is configured to abut against the second rail 24 to provide a noise reduction effect and / or a shock absorption effect.

[0045] Those skilled in the art will readily recognize that numerous modifications and variations of the apparatus 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 rail displaceable in a first direction or a second direction opposite to the first direction; A second rail; a first feature disposed on the first rail; a compensation device attached to the second rail and movable between a first state and a second state, the compensation device including a second feature; a third rail; the second rail is movably attached to the third rail, the third rail includes a support section and a blocking portion, the support section is configured to support the second rail or the compensation device; After the second rail is displaced to the forward position relative to the first rail, the first rail is displaced in the first direction, thereby driving the blocking portion of the third rail and the compensation device in the first state to block each other; stopping the second rail until the first rail is displaced a predetermined distance in the first direction and the first feature and the compensation device in the first state are actuated to abut each other, and actuating the compensation device to move from the first state to the second state; When the compensation device is in the second state, the blocking portion of the third rail does not block the compensation device; the second rail has a longitudinal wall, the longitudinal wall being disposed between the compensation device and the first rail; the compensation device further includes a resilient portion configured to abut against the longitudinal wall when the compensation device moves from the second state to the first state. Slide rail assembly.

2. After the second rail is displaced relative to the first rail to a lug position, the first rail is displaced in the first direction, thereby driving the first feature and the second feature of the compensation device in the first state to abut against each other; 2. The slide rail assembly of claim 1, wherein the second rail is driven to displace another predetermined distance in the first direction synchronously with the first rail until the compensating device is driven to move from the first state to the second state.

3. The slide rail assembly of claim 1 , wherein the compensation device is pivotally connected to the second rail.

4. one of the first feature and the second feature includes a first guide portion, and the compensation device further includes a predetermined feature; After the second rail is displaced relative to the first rail to the advanced position, the first rail is displaced in the first direction, thereby driving the blocking portion of the third rail and the predetermined feature portion of the compensation device in the first state into blocking relation to each other; stopping the second rail until the first rail is displaced the predetermined distance in the first direction and the first feature and the second feature of the compensation device in the first state are driven by the first guide portion to abut each other, and driving the compensation device to move from the first state to the second state; 4. The slide rail assembly of claim 2 or 3, wherein the blocking portion of the third rail does not block the predetermined feature of the compensation device when the compensation device is in the second state.

5. 2. The slide rail assembly of claim 1, wherein the compensation device further comprises a body and a working member, the working member movably mounted to the body, and the second feature disposed on the working member.

6. the compensation device further includes a restoring elastic member, and one or another of the first feature and the second feature further includes a second guide portion; while the first rail is displaced in the second direction, the first feature and the second feature of the compensation device in the first state are abutted against each other by the second guide portion to drive the working member out of the working position and allow the first feature to pass the working member in the second direction; The slide rail assembly according to claim 5 , wherein after the first feature portion passes the working member, the working member moves to the working position in response to a restoring elastic force applied from the restoring elastic member.

7. 7. The slide rail assembly according to claim 5, wherein the working member is pivotally connected to the main body.

8. 2. The slide rail assembly of claim 1, wherein said compensation device further comprises a resilient member, said compensation device moving from said second state to said first state in response to a resilient force applied by said resilient member.

9. The lug position and the forward position are offset from predetermined positions, the second feature is spaced from the first feature by a first longitudinal distance when the second rail is in the predetermined position relative to the first rail; when the second rail is in the lugged position relative to the first rail, the second feature is spaced from the first feature by a second longitudinal distance that is less than the first longitudinal distance; 3. The slide rail assembly of claim 2, wherein when the second rail is in the advanced position offset from the predetermined position relative to the first rail, the second feature is spaced from the first feature by a third longitudinal distance greater than the first longitudinal distance.

10. The forward position is offset from a predetermined position, the second feature is spaced from the first feature by a first longitudinal distance when the second rail is in the predetermined position relative to the first rail; 2. The slide rail assembly of claim 1, wherein when the second rail is in the advanced position offset from the predetermined position relative to the first rail, the second feature is spaced from the first feature by a third longitudinal distance greater than the first longitudinal distance.

Images