Slide rail assembly

Abstract

A slide rail assembly includes a first rail and a second rail. The first rail includes a passage. The second rail is accommodated in the passage of the first rail. The second rail includes a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall. The first wall has an extension portion extending beyond the second wall a predetermined distance. Wherein, the extension portion of the first wall of the second rail is configured to be operatively placed into the passage of the first rail and supported by the first rail.

What is claimed is: 
     
         1 . A slide rail assembly, comprising:
 a first rail comprising a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall, a passage being defined by the first wall, the second wall and the longitudinal wall, the passage having a first height; and   a second rail movable relative to the first rail, the second rail comprising a main body part and an extension part, the main body part having a second height, an end of the extension part having a third height;   wherein the first height of the passage of the first rail is greater than the second height of the main body part of the second rail, and the second height of the main body part of the second rail is greater than the third height of the end of the extension part;   wherein the extension part is configured to be operatively placed into the passage of the first rail and supported by the first wall of the first rail, in order to allow the main body part of the second rail to enter the passage of the first rail thereafter.   
     
     
         2 . The slide rail assembly of  claim 1 , wherein the main body part of the second rail comprises a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall, and the first wall of the second rail extends beyond the second wall of the second rail a predetermined distance along with the extension part. 
     
     
         3 . The slide rail assembly of  claim 2 , wherein the extension part comprises a guiding surface located between the first wall and the second wall of the second rail. 
     
     
         4 . The slide rail assembly of  claim 3 , wherein the guiding surface is an inclined surface. 
     
     
         5 . The slide rail assembly of  claim 1  further comprising a first supporting member arranged on the first wall within the passage of the first rail and configured to guide the second rail. 
     
     
         6 . The slide rail assembly of  claim 5  further comprising a second supporting member arranged on the second wall within the passage of the first rail and configured to guide the second rail. 
     
     
         7 . A slide rail assembly, configured to mount a carried object to a rack, the slide rail assembly comprising:
 a support rail configured to be mounted to the rack;   a first rail movable relative to the support rail, the first rail comprising a passage having a first height; and   a second rail mounted into the passage of the first rail, the second rail configured to carry the carried object, the second rail comprising a main body part and an extension part, the main body part having a second height, an end of the extension part having a third height;   wherein the first height of the passage of the first rail is greater than the second height of the main body part of the second rail, and the second height of the main body part of the second rail is greater than the third height of the end of the extension part.   
     
     
         8 . The slide rail assembly of  claim 7 , wherein the first rail comprises a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall, and the passage is defined by the first wall, the second wall and the longitudinal wall. 
     
     
         9 . The slide rail assembly of  claim 7 , wherein the main body part of the second rail comprises a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall, and the first wall of the second rail extends beyond the second wall of the second rail a predetermined distance along with the extension part. 
     
     
         10 . A slide rail assembly, comprising:
 a first rail comprising a passage; and   a second rail comprising first wall, a second wall and a longitudinal wall connected between the first wall and the second wall, the first wall having an extension portion extending beyond the second wall a predetermined distance;   wherein the extension portion of the first wall of the second rail is configured to be operatively placed into the passage of the first rail and supported by the first rail, in order to allow the second rail to be mounted into the passage of the first rail thereafter.