Slide rail assembly

Abstract

A slide rail assembly includes a first rail, a second rail, a slide-facilitating device, and a working member. The second rail is movably mounted in a channel of, and is displaceable with respect to, the first rail. The slide-facilitating device is movably mounted between the rails and includes an engaging feature. The working member is provided on the first rail and includes a main body portion, an elastic portion for supporting the main body portion, and a predetermined portion connected to the main body portion. The first rail includes a supporting portion for supporting the elastic portion of the working member. The engaging feature is engaged with the predetermined portion of the working member when the slide-facilitating device is at a predetermined position.

What is claimed is: 
     
         1 . A slide rail assembly, comprising:
 a first rail including a channel;   a second rail movably mounted in the channel of the first rail, the second rail being displaceable with respect to the first rail;   a slide-facilitating device movably mounted between the first rail and the second rail, the slide-facilitating device including an engaging feature; and   a working member provided on the first rail, the working member including a main body portion, an elastic portion, and a predetermined portion, wherein the elastic portion is configured to support the main body portion, and the predetermined portion is connected to the main body portion;   wherein the first rail is provided with a supporting portion for supporting the elastic portion of the working member;   wherein when the second rail is moved out of the channel of the first rail after displacement in an opening direction with respect to the first rail, the slide-facilitating device is at a predetermined position, and the engaging feature of the slide-facilitating device is engaged with the predetermined portion of the working member.   
     
     
         2 . The slide rail assembly of  claim 1 , wherein the first rail includes a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the first rail; and the first wall, the second wall, and the longitudinal wall of the first rail jointly define the channel. 
     
     
         3 . The slide rail assembly of  claim 2 , wherein the working member is movably mounted on the longitudinal wall of the first rail. 
     
     
         4 . The slide rail assembly of  claim 3 , wherein the main body portion of the working member is pivotally connected to the longitudinal wall of the first rail. 
     
     
         5 . The slide rail assembly of  claim 3 , wherein the elastic portion of the working member has a first section and a second section, the first section of the elastic portion of the working member is connected to the main body portion, and the second section of the elastic portion of the working member and the main body portion of the working member define a predetermined space therebetween. 
     
     
         6 . The slide rail assembly of  claim 5 , wherein the predetermined portion of the working member includes a first guiding feature, a second guiding feature, and a hole located between the first guiding feature and the second guiding feature, the hole is defined by a plurality of hole walls, and the hole is configured for engagement with the engaging feature of the slide-facilitating device. 
     
     
         7 . The slide rail assembly of  claim 6 , wherein the hole is substantially larger in size than the engaging feature. 
     
     
         8 . The slide rail assembly of  claim 6 , wherein the second rail includes a releasing feature; while the second rail is being reinserted into the channel of the first rail from outside the channel of the first rail in a retracting direction, the releasing feature of the second rail contacts one of the first guiding feature and the second guiding feature and thereby moves the working member such that the engaging feature of the slide-facilitating device is disengaged from the hole of the predetermined portion of the working member to allow the slide-facilitating device to be displaced from the predetermined position in the retracting direction; the second rail has a front end and a rear end; the releasing feature is adjacent to the rear end of the second rail; the first rail has a front end and a rear end; the working member is adjacent to the front end of the first rail; and a distance between the releasing feature and the rear end of the second rail is greater or slightly greater than a distance between the working member and the front end of the first rail. 
     
     
         9 . The slide rail assembly of  claim 2 , wherein the slide-facilitating device further includes a first portion, a second portion, and a longitudinal portion connected between the first portion and the second portion; the first portion, the second portion, and the longitudinal portion correspond to the first wall, the second wall, and the longitudinal wall of the first rail respectively; the first portion of the slide-facilitating device is provided with a plurality of rolling balls for supporting the first wall of the first rail; and the second portion of the slide-facilitating device is provided with a plurality of rolling balls for supporting the second wall of the first rail. 
     
     
         10 . The slide rail assembly of  claim 1 , wherein the engaging feature of the slide-facilitating device is an engaging hook. 
     
     
         11 . A slide rail assembly, comprising:
 a first rail including a channel;   a second rail movably mounted in the channel of the first rail, the second rail being displaceable with respect to the first rail;   a slide-facilitating device movably mounted between the first rail and the second rail, the slide-facilitating device including an engaging feature; and   a working member provided on the first rail, the working member including a main body portion, an elastic portion, and a predetermined portion, wherein the elastic portion is configured to support the main body portion, the predetermined portion is connected to the main body portion, and the predetermined portion includes a hole defined by a plurality of hole walls;   wherein when the second rail is moved out of the channel of the first rail after displacement in an opening direction with respect to the first rail, the engaging feature of the slide-facilitating device extends into the hole of the predetermined portion of the working member to prevent the slide-facilitating device from arbitrary displacement with respect to the first rail.   
     
     
         12 . The slide rail assembly of  claim 11 , wherein the first rail includes a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the first rail; and the first wall, the second wall, and the longitudinal wall of the first rail jointly define the channel. 
     
     
         13 . The slide rail assembly of  claim 12 , wherein the working member is movably mounted on the longitudinal wall of the first rail. 
     
     
         14 . The slide rail assembly of  claim 13 , wherein the main body portion of the working member is pivotally connected to the longitudinal wall of the first rail. 
     
     
         15 . The slide rail assembly of  claim 13 , wherein the elastic portion of the working member has a first section and a second section, the first section of the elastic portion of the working member is connected to the main body portion, and the second section of the elastic portion of the working member and the main body portion of the working member define a predetermined space therebetween. 
     
     
         16 . The slide rail assembly of  claim 15 , wherein the predetermined portion of the working member includes a first guiding feature and a second guiding feature, and the hole is located between the first guiding feature and the second guiding feature. 
     
     
         17 . The slide rail assembly of  claim 16 , wherein the hole is substantially larger in size than the engaging feature. 
     
     
         18 . The slide rail assembly of  claim 16 , wherein the second rail includes a releasing feature; while the second rail is being reinserted into the channel of the first rail from outside the channel of the first rail in a retracting direction, the releasing feature of the second rail contacts one of the first guiding feature and the second guiding feature and thereby moves the working member such that the engaging feature of the slide-facilitating device is disengaged from the hole of the predetermined portion of the working member to allow the slide-facilitating device to be displaced from a predetermined position in the retracting direction; the second rail has a front end and a rear end; the releasing feature is adjacent to the rear end of the second rail; the first rail has a front end and a rear end; the working member is adjacent to the front end of the first rail; and a distance between the releasing feature and the rear end of the second rail is greater or slightly greater than a distance between the working member and the front end of the first rail. 
     
     
         19 . The slide rail assembly of  claim 12 , wherein the slide-facilitating device further includes a first portion, a second portion, and a longitudinal portion connected between the first portion and the second portion; the first portion, the second portion, and the longitudinal portion correspond to the first wall, the second wall, and the longitudinal wall of the first rail respectively; the first portion of the slide-facilitating device is provided with a plurality of rolling balls for supporting the first wall of the first rail; and the second portion of the slide-facilitating device is provided with a plurality of rolling balls for supporting the second wall of the first rail. 
     
     
         20 . The slide rail assembly of  claim 11 , wherein the predetermined portion of the working member is provided with an extension section adjacent to the hole, and the engaging feature of the slide-facilitating device corresponds to the extension section when extending into the hole of the predetermined portion of the working member.