Abstract: A self-closing and opening preventing device for slide rails of a drawer includes a housing fixed on the rear inside of a fixing rail with engaging holes on its front upper and lower positions and a long pin guiding groove on its central part. A cam slider is movable forward and rearward within the housing; and a spring attaches at one end to the rear of the housing and at the other end to the cam slider. Engaging jaws mounted on the slider can be locked in the engaging holes, and pin guiding slopes, pin engaging slopes and a pin hole of the engaging jaws are configured to receive an actuating pin fixed at a rear position of a movable rail 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.

Abstract: A self-closing and opening preventing device for slide rails of a drawer includes a housing fixed on the rear inside of a fixing rail with engaging holes on its front upper and lower positions and a long pin guiding groove on its central part. A cam slider is movable forward and rearward within the housing; and a spring attaches at one end to the rear of the housing and at the other end to the cam slider. Engaging jaws mounted on the slider can be locked in the engaging holes, and pin guiding slopes, pin engaging slopes and a pin hole of the engaging jaws are configured to receive an actuating pin fixed at a rear position of a movable rail 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.