Work holders – Relatively movable jaws – Jaw features
Patent
1990-12-31
1991-11-19
Hartman, J. J.
Work holders
Relatively movable jaws
Jaw features
269271, 269280, B25B 124
Patent
active
050659901
ABSTRACT:
A vise jaw system for a vise having a keyway that defines a horizontal datum surface and a vertical datum surface includes at least one removable jaw for selective attachment to the vise, the removable jaw having a bottom surface held in fixed relation to the horizontal datum surface and a front surface perpendicular to the horizontal datum surface. The removable jaw also includes a recess formed in at least the bottom surface of the removable jaw. At least one positioning plate is selectively attached to the removable jaw, the positioning plate having a bottom face contacting the horizontal datum surface and a rear face perpendicular to the horizontal datum surface. The positioning plate further includes a cleat fixed to the positioning plate adjacent to the bottom face of the positioning plate, the cleat having a shape sized for reception in the recess. Pressure devices are located in one of the removable jaw and the cleat for engaging the cleat when received in the recess to urge the bottom face of the positioning plate against the horizontal datum surface. In one embodiment of the invention, the recess has a lateral length less than the lateral length of the bottom surface of the removable jaw, such that the cleat of the positioning plate enters the recess in a longitudinal direction. The system has a lateral alignment mechanism for laterally aligning the positioning plate relative to the vertical datum surface upon longitudinal insertion of the cleat within the recess.
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Durfee Susan M.
Hartman J. J.
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