Slide assembly

Abstract

A slide assembly includes a catch assembly secured to a first rail member, and a second rail member in sliding engagement with the first rail member. The second rail member includes a post extending laterally towards the first rail member. The catch assembly includes a catch member pivotable between a post retaining position and a post releasing position. When the catch member is in the post releasing position, movement of the second rail member from an extended position to a retracted position causes the post to engage a bearing surface of the catch member to pivot the catch member from the post releasing position to the post retaining position. The bearing surface of the catch member is contoured to provide substantially continuous and uniform engagement between the bearing surface and the post as the post pivots the catch member from the post releasing position to the post retaining position.

1 . A slide assembly comprising:
 a first rail member;   a second rail member in sliding engagement with said first rail member and axially slidable between a retracted position and an extended position, the second rail member including a post extending laterally towards the first rail member; and   a catch assembly secured to the first rail member, the catch assembly including a catch member pivotable about a pivot point at a proximal end of the catch member between a post retaining position and a post releasing position;   wherein when the catch member is in the post releasing position, movement of the second rail member from the extended position to the retracted position causes a convex arcuate surface of the post to engage a concave arcuate bearing surface of the catch member to pivot the catch member from the post releasing position to the post retaining position;   further wherein the post rides along the concave arcuate bearing surface as the catch member is pivoted from the post releasing position to the post retaining position, and the concave arcuate bearing surface of the catch member is contoured to provide substantially continuous and uniform engagement between the bearing surface and the post as the post pivots the catch member from the post releasing position to the post retaining position.   
     
     
         2 . The slide assembly of  claim 1 , wherein the post is cylindrical. 
     
     
         3 . The slide assembly of  claim 1 , wherein the concave arcuate bearing surface of the catch member is ladle-shaped. 
     
     
         4 . The slide assembly of  claim 1 , wherein the concave arcuate bearing surface of the catch member is J-shaped. 
     
     
         5 . The slide assembly of  claim 1 , wherein the catch member comprises a flexible body configured to bias the catch member from a partially pivoted position toward at least one of the post retaining position and the post releasing position. 
     
     
         6 . The slide assembly of  claim 5 , wherein the flexible body comprises a plastic material, and further wherein the bearing surface is disposed on a bearing member affixed to the flexible body, the bearing member comprising a material of higher wear resistance relative to the flexible body. 
     
     
         7 . The slide assembly of  claim 6 , wherein the bearing member comprises a metal plate. 
     
     
         8 . The slide assembly of  claim 7 , wherein the metal plate comprises a folded end press fit into a corresponding recess in the flexible body. 
     
     
         9 . The slide assembly of  claim 1 , wherein the catch member further comprises a chamfered edge spaced from and opposite the bearing surface, wherein the catch member is in the post retaining position, movement of the second rail member from the extended position to the retracted position causes the arcuate surface of the post to engage the chamfered edge of the catch member, allowing the post to move axially past the bearing surface to retain the second rail member in the refracted position. 
     
     
         10 . The slide assembly of  claim 1 , further comprising a third rail member laterally disposed between the first and second rail members, the third rail member being in sliding engagement with each of the first and second rail members. 
     
     
         11 . The slide assembly of  claim 1 , wherein the catch assembly further comprises a catch retainer secured to the first rail member, the catch member being pivotably mounted to the catch retainer and seated in a channel in the catch retainer. 
     
     
         12 . A slide assembly comprising:
 a first rail member;   a second rail member in sliding engagement with said first rail member and axially slidable between a retracted position and an extended position, the second rail member including a cylindrical post extending laterally towards the first rail member; and   a catch assembly including a catch retainer secured to the first rail member and a catch member pivotably mounted to the catch retainer and seated in a channel in the catch retainer, the catch member being pivotable about a pivot point at a proximal end of the catch member between a post retaining position and a post releasing position;   wherein when the catch member is in the post releasing position, movement of the second rail member from the extended position to the retracted position causes the post to engage a concave arcuate bearing surface of the catch member to pivot the catch member from the post releasing position to the post retaining position, the concave arcuate bearing surface of the catch member being contoured to provide substantially continuous and uniform engagement between the bearing surface and the post as the post pivots the catch member from the post releasing position to the post retaining position;   further wherein the post rides along the concave arcuate bearing surface as the catch member is pivoted from the post releasing position to the post retaining position.   
     
     
         13 . The slide assembly of  claim 12 , wherein the concave arcuate bearing surface of the catch member is ladle-shaped. 
     
     
         14 . The slide assembly of  claim 12 , wherein the catch member comprises a flexible body configured to bias the catch member from a partially pivoted position toward at least one of the post retaining position and the post releasing position. 
     
     
         15 . The slide assembly of  claim 14 , wherein the flexible body comprises a plastic material, and further wherein the bearing surface is disposed on a bearing member affixed to the flexible body, the bearing member being provided in a material of increased wear resistance relative to the flexible body. 
     
     
         16 . The slide assembly of  claim 15 , wherein the bearing member comprises a metal plate. 
     
     
         17 . The slide assembly of  claim 16 , wherein the metal plate comprises a folded end press fit into a corresponding recess in the flexible body. 
     
     
         18 . The slide assembly of  claim 12 , wherein the catch member further comprises a chamfered edge spaced from and opposite the bearing surface, wherein the catch member is in the post retaining position, movement of the second rail member from the extended position to the retracted position causes the post to engage the chamfered edge of the catch member, allowing the post to move axially past the bearing surface to retain the second rail member in the retracted position. 
     
     
         19 . A slide assembly comprising:
 a first rail member;   a second rail member in sliding engagement with said first rail member and axially slidable between a retracted position and an extended position, the second rail member including a post extending laterally towards the first rail member; and   a catch assembly including a catch retainer secured to the first rail member, and a catch member pivotably mounted to the catch retainer and seated in a channel in the catch retainer, the catch member being pivotable about a pivot point at a proximal end of the catch member between a post retaining position and a post releasing position;   wherein the catch member includes a flexible body configured to bias the catch member from a partially pivoted position toward at least one of the retained position and the extended position, and a bearing plate affixed to the flexible body, the bearing plate comprising a material of increased wear resistance relative to the flexible body;
 further wherein when the catch member is in the post releasing position, movement of the second rail member from the extended position to the retracted position causes the post to engage a concave arcuate bearing surface of the bearing plate to pivot the catch member from the post releasing position to the post retaining position; and 
   further wherein the post rides along the concave arcuate bearing surface as the catch member is pivoted from the post releasing position to the post retaining position.   
     
     
         20 . The slide assembly of  claim 19 , wherein an endmost portion of the bearing plate is folded across the endmost portion and press fit into a corresponding recess in the flexible body.