Patent ID: 7101081

Claim:
A positioning device for a ball bearing slide incorporated with a mobile track and a fixed track, wherein the mobile track has slide channels; the mobile track being inserted into the fixed track; the fixed track being provided with a stopper, and characterized in that: the positioning device comprising a positioning member and a releasing member; the positioning member being provided with a resilient lever and a retaining foot; the resilient lever having one end formed with a taper block; the taper block being provided with a bevel edge; a protruding post being disposed on one side of one end of the retaining foot; the releasing member being a slide plate; the releasing member being provided with a hollowed trough for insertion of the protruding post; the hollowed trough being provided with a bevel edge in relation to the protruding post; the stopper of the fixed track comprising a retaining block and a retaining wall; the retaining block being provided in relation to the resilient lever of the positioning member; the retaining wall being provided in relation to the retaining foot of the positioning member; the retaining block including a bevel edge; thereby, the positioning member being pivoted to the mobile track, the releasing member sliding into the slide channels of the mobile track; the taper block sliding over the retaining block and secured in place and the retaining foot holding against the retaining wall when the mobile track is pulled externally to restrict the location of the mobile track in both directions; with the releasing member being pulled out, the retaining foot being free from the retaining wall as driven by the protruding post of the retaining foot relatively by the bevel edge of the hollowed trough of the releasing member.