Patent ID: 6454372
Filing Date: 2002-09-24
Classification: A47B

Abstract:
A positioning device in a drawer rail adapted to be fixed to a furniture item, a sliding rail slidably contained in the outer rail, a ball rail slidably contained in the sliding rail, and an inner rail adapted to be fixed to a drawer and slidably contained in the sliding rail, the sliding rail having a bottom and a pair of side plates, the ball rail having a bottom and a pair of side plates in each of which a row of a plurality of openings are defined to contain a plurality of corresponding balls, each side plate of the sliding rail having an inner groove along which the two rows of balls can move respectively, the sliding rail having a front end extending towards an outermost side of the drawer by which the drawer is pulled outward, an opposite end to the front end of the sliding rail being a rear end, a convex portion being formed in the bottom of the ball rail thus defining a groove having a pair of opposite side walls, the positioning device comprising:a body attachable on the bottom of the sliding rail and near the front end of the sliding rail and configured to abut an end face of the ball rail; a head formed on the body and extending toward the rear end of the sliding rail, the head having two arms enclosing a central opening and defining a gap therebetween, the two arms each being arcuate and facing each other so as to form a C shape to be snugly receivable in the ball rail, whereby the two arms are deformable by the two side walls of the convex portion of the ball rail so as to selectively retain the ball rail; and a pair of protrusions formed on the body, the protrusions abutting the bottom of the ball rail when the ball rail is pulled outward and limiting travel of the ball rail.