Work holders – Relatively movable jaws – With means for 'hold-down' component of force
Patent
1997-04-25
1999-10-05
Watson, Robert C.
Work holders
Relatively movable jaws
With means for 'hold-down' component of force
269234, 411354, 411393, B23Q 302
Patent
active
059611081
ABSTRACT:
A device having a fixture with a working surface and at least one hole, at least one stop rising above the working surface, a fastener, a gripping member having a first block portion and a second block portion where the first block portion is joined to the second block portion for relative movement. Each block portion has an inner wall and a gripper wall adapted to engage a workpiece, the inner walls of the first and second block portions form a through bore for receiving the fastener when the first and second block portions are joined and each inner wall has a lower radial surface and an upper conical surface. A portion of the upper conical surface is less recessed than the other portions of the upper conical surface whereby at least one of the first and second block portions of the gripping member slides toward the at least one stop and the gripper wall of the respective block portion applies a downward inward holding force on a workpiece when the fastener bears against the less recessed portion of the respective at least one block thereby creating the downward inward holding force and securing the fastener to the at least one hole of the fixture.
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