Patent ID: 7083243

Claim:
A drawer slide assembly comprising a plurality of slide rails including fixing rails, auxiliary rails fitted in the fixing rails, movable rails fitted in the auxiliary rails, the movable rails being fixed to a drawer, and liner bearings mounted between the fixing rails and the auxiliary rails as well as between the auxiliary rails and the movable rails, wherein each of the slide rails further includes a housing fixed on the rear inside of a resective fixing rail, the housing being formed, on front upper and lower positions, with engaging holes, and on a central part, with a long pin guiding groove, the long pin guiding groove being open in the front; a cam slider built in the housing to move forward and rearward within said housing, a spring having first and second ends, the first end being connected to the rear of the housing and the second end being connected to the cam slider; an opening preventing device provided, on a front part, with engaging jaws to be locked in said engaging holes and formed, on its inner side, with pin guiding slopes open in the pin engaging slopes and a pin hole, the central part of the opening preventing device being connected to inside upper and lower positions of the cam slider via shaft pins; and an actuating pin fixed at a rear position of one of said movable rails, the actuating pin functioning to lock the opening preventing device at the time of drawing-out of a drawer and to unlock the opening preventing device at the time of drawing-in of a drawer.