Slide rail buffering structure

Abstract

A slide rail buffering structure includes a connection board, a slidable board, a damper, a pull-resistant assembly, and a positioning bar. The positioning bar is received in a slide channel of the connection board. The slidable board is fit over the positioning bar and is set on the track portion of the connection board. The damper is received in an end of the connection board and the damper is coupled to the slidable board. The pull-resistant assembly is connected between the slidable board and the connection board and is set at an end of a rail base plate. The structure of the present invention allows the positioning bar to be caught and driven by a guide section of a rail plate to alleviate and buffer the pulling force of the connection board that is moved backward for returning so as to prevent damage caused by excessive pulling force.

1 . A slide rail buffering structure adapted to be mounted to an end of a rail base plate to correspond to a guide section of a rail plate, the slide rail buffering structure comprising:
 a connection board, which is mounted to the rail base plate, the connection board forming therein an accommodation channel, the connection board having a bottom having opposite sides defining fixing slots, the connection board having an end that extends to form a track portion, the track portion defining a slide channel, the slide channel having a distal end that is bent to define a holding receptacle, the track portion having a distal end forming a support;   a slidable board, which is set on the track portion of the connection board, the slidable board having a bottom having opposite sides defining fixing slots and a top defining a through hole;   a damper, which is received in the accommodation channel of the connection board, the damper comprising a connection rod, the connection rod having an end coupled to the slidable board to allow the slidable board to be movable along the track portion of the connection board;   a pull-resistant assembly, which has an end engaging and fixed to the fixing slots defined in the bottom of the connection board and an opposite end engaging and fixed to the fixing slots defined in the slidable board; and   a positioning bar, which is movably received in the slide channel of the track portion, the positioning bar having a top end extending through the through hole of the slidable board to guide sliding path of the slidable board.   
     
     
         2 . The slide rail buffering structure according to  claim 1 , wherein the connection board forms in the bottom thereof at least one positioning hole and retention hook to enhance mounting to the rail base plate. 
     
     
         3 . The slide rail buffering structure according to  claim 1 , wherein the slidable board forms a receiving opening in the bottom thereof for engaging and coupling the end of the damper. 
     
     
         4 . The slide rail buffering structure according to  claim 1 , wherein the damper comprises a pneumatic cylinder. 
     
     
         5 . The slide rail buffering structure according to  claim 1 , wherein the damper comprises a hydraulic cylinder. 
     
     
         6 . The slide rail buffering structure according to  claim 1 , wherein, the damper comprises a pneumatic/hydraulic cylinder. 
     
     
         7 . The slide rail buffering structure according to  claim 1 , wherein the pull-resistant assembly comprises at least one pull-resistant spring.