Patent ID: 6945619
Filing Date: 2005-09-20
Classification: A47B

Abstract:
1. A positioning device for a slide comprising a fixed track, a mobile track slidingly engaged with the a fixed track, and an auxiliary slide panel disposed inside the fixed track; the mobile track being provided with a slide piece for preventing disengagement of the mobile track from the fixed track, the slide piece being disposed flush against an inner side of the mobile track and located in relation to an external end of the fixed track when the mobile track is extended, a slide channel and a guide channel being disposed on the slide piece, two axial bolts respectively penetrating through the slide and the guide channels and fixed to the mobile track, the slide piece deviating and sliding on the mobile track, one end of one side of the slide piece being connected to one end of an elastic member, another end of the elastic member being connected to the mobile track, the slide piece being displaceable by the elastic member and given a constant and elastic travel, an inner side of the guide channel of the slide piece constantly upholding the axial bolt inserted into the guide channel, and a protrusion being extended from another side of the slide piece; a retainer being fixed on the fixed track in relation to the slide piece and having opposing upper and lower edges, at least one or both of the upper and lower edges of the retainer being provided with a raised retaining plate in relation to the protrusion of the slide piece; and the slide piece with the slide channel and the axial bolt inserted into the slide channel as an axis of rotation being automatically displaced to slide over the retainer responsive to the mobile track being pulled outwardly, with the mobile track being fully extended the slide piece is secured in place by having the protrusion holding against an external end of the retaining plate of the retainer, responsive to the mobile track being pushed in by force, the slide piece is pushed to automatically slide and disengage from the retaining plate of the retainer to retract the mobile track into the fixed track.