Quick action bar clamp

Details Quick action bar clamp Quick action bar clamp

B - Operations, Transporting

25

B

B25B 5/06 (2006.01) B25B 5/02 (2006.01)

Patent

CA 2052146

The present invention is directed to a bar clamp especially suitable for rapid and precise closure against a workpiece. The clamp includes a fixed jaw and a movable jaw opposing the fixed jaw. The movable jaw connects at one end to a slide bar which is movable to bring the movable jaw toward and away from the fixed jaw. A one-way drive controlled by a trigger handle grip, realeasably engages the slide bar and advances the movable jaw toward the fixed jaw. Return motion of the movable jaw away from the fixed jaw is accomplished manually when the one-way drive is disengaged. A first braking lever which is biased to bind against the slide bar prevents reverse motion of the movable jaw away from the fixed jaw, except when the first lever is disengaged from the slide bar. For return motion of the jaw the one-way drive and the first braking lever are disengaged. The trigger handle advances the slide bar by driving a second lever which binds against a surface of the slide bar and moves the rod as the second lever moves toward the fixed jaw. The second lever is returned by spring force to its original position after each stroke of the trigger handle, the second lever sliding over the bar surface during its return motion.

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