Work holders – Relatively movable jaws – With means for 'hold-down' component of force
Patent
1993-10-25
1994-08-30
Watson, Robert C.
Work holders
Relatively movable jaws
With means for 'hold-down' component of force
269147, 269155, 269221, 269287, 269113, B23Q 302
Patent
active
053420314
ABSTRACT:
A clamp fixture with multi-directional opening mainly comprises a front clamping head, a rear clamping base, a top pressing plate, a bottom pressing plate and two lock clamping bases. The front clamping head consists of two side plates which are riveted together by a lower stud shaft and a central stud shaft. The central shaft has a bolt, the front portion of which has a pushing block, and the rear end of the bolt has a wing nut connected thereto. Moreover, the rear clamping base also consists two side plates to cooperate with a lower stud shaft. The central stud shaft is inserted with an inverted U-shaped blocking base for holding the objects to be clamped. In addition, the upper and the bottom pressing plates are designed to have appropriate thickness. The two lock clamping bases are respectively installed on top of the front clamping head and the rear clamping base. Each of the lock clamping bases is made up of a bracket, a stud shaft, a screw bolt with a holding block. By such configuration, the lock clamping base is used for the top pressing plate to feed through and secured thereof. The bottom pressing plate is then fed through the front clamping head and the lower portion of the rear clamping base to cooperate with the bolt of the front clamping head for clamping and positioning the working objects.
REFERENCES:
patent: 3024521 (1962-03-01), Polk
patent: 4552345 (1985-11-01), Benda et al.
patent: 4671500 (1987-06-01), Mark
patent: 5058870 (1991-10-01), Cetnar
patent: 5192060 (1993-03-01), Novak
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