Drawer Slide Closing Device

Abstract

A closing device for drawer slide includes a fixed rail with a sliding member having an open slot, for attachment to a furniture body, and a sliding rail with a pin member, for attachment to a drawer. The sliding member is connected with an end of a spring and another end of the spring is fastened to the fixed rail or its supporting bracket. The sliding member further includes a sliding slot which intersects with the open slot. A latch functioning as a switch is allocated within the sliding slot, and is movable together with the sliding member. The latch includes a guiding channel that intersects with the open slot at the position of the guiding channel. The supporting bracket includes a straight sliding groove, wherein the sliding member rides over the straight sliding groove for a linear movement. The guiding channel is obliquely opened, wherein one inner side wall of the guiding channel is straight, and another inner side wall is provided with a positioning pit. When the drawer is closed into the furniture body, the closing device reduces the noise generated by the impact of the drawer against the furniture body, and thereby reduces the impact on the surrounding.

1 . A closing device for drawer slide, comprising a fixed rail for mounting the drawer slide to a furniture body, and a sliding rail for mounting the drawer slide to a drawer;
 the sliding rail including a pin member, and the fixed rail including a supporting bracket that includes a sliding member,   the sliding member is connected with an end of a spring, and another end of the spring is fastened to the fixed rail or the supporting bracket,   the sliding member has an open slot, wherein,   the sliding member further includes a sliding slot that intersects the open slot,   a latch that functions as a switch is provided within the sliding slot and moveable together with the sliding slot,   the latch comprises a guiding channel that intersects with the open slot,   the supporting bracket comprises a straight guiding groove wherein the sliding member rides over the straight guiding groove for a linear movement;   both the sliding member and the latch are driven by the pin member,   when the drawer is pulled out of the furniture body, the latch is moved into an opening or a dent of the supporting bracket, the latch moves along a direction perpendicular to a direction of pulling out of the drawer by means of the pin member,   when the drawer is pushed into the furniture body, the pin member drives the guiding channel of the latch, thus withdraws the latch from the opening or the dent of supporting bracket, then the sliding member is urged by the force of spring to a closed position.   
   
   
       2 . A closing device for drawer slide as claimed in  claim 1 , wherein,
 the guiding channel is obliquely opened, wherein one inner side wall is straight, and another inner side wall is provided with a positioning pit.   
   
   
       3 . A closing device for drawer slide as claimed in  claim 1 , wherein,
 the latch comprises a projection on a side thereof that faces the supporting bracket, the dent that corresponds to the projection is provided at the top portion of the supporting bracket.   
   
   
       4 . A closing device for drawer slide as claimed in  claim 3 , wherein,
 a bevel or arc smooth edge is provided between the projection and the dent.   
   
   
       5 . A closing device for drawer slide as claimed in  claim 1 , wherein,
 the open slot is horizontally opened.   
   
   
       6 . A closing device for drawer slide as claimed in  claim 1 , wherein,
 the sliding member comprises a positioning hole or positioning slot that is connected with an end of the spring.   
   
   
       7 . A closing device for drawer slide as claimed in  claim 1 , wherein,
 the fixed rail further comprises a damper, the damper is fastened to the fixed rail, a rod of the damper is connected with a side surface of the sliding member and is displaceable together with the sliding member.