Metal working – Means to assemble or disassemble – Means to assemble electrical device
Patent
1977-10-05
1979-05-15
Combs, E. M.
Metal working
Means to assemble or disassemble
Means to assemble electrical device
140124, 242 717, B21F 304, B21F 1504
Patent
active
041539907
ABSTRACT:
Disclosed is a power tool of pen hold type which comprises, within a substantially tubular case having a tip tapered end, a prime mover, a power transmission mechanism connected to the prime mover, a clutch mechanism connected to the power transmission mechanism, a driven section connected to the clutch mechanism when it is made "on", a collet extending from the driven section axially of the case and exteriorly of the tip tapered end thereof, an index mechanism, a switch operating mechanism, and a power input switch, and in which when an operator depresses the switch operating mechanism with his finger while holding the case just as he holds a writing pen with his hand, the switch is closed and simultaneously the index mechanism is brought to a disengaged condition to permit the clutch mechanism to be brought to an engaged condition to permit a transmission of a rotation force from the prime mover to the collet to make the power tool ready for application to operations, and in which when the operator releases his finger from the switch operating mechanism, due to the return force of the switch the switch operating mechanism is returned to its original condition to permit the switch to be turned off, and simultaneously the clutch mechanism is brought to a disengaged condition to disconnect the driven section from the power transmission mechanism to permit the index mechanism to be made operative to permit the driven section to stop at a specified angular position. Such power tool of pen hold type is simple in construction, light in weight, low in manufacturing cost, and easy to operate and offers a convenience particularly in performing the wire wrapping operation for a highly densified terminal structure.
REFERENCES:
patent: 2649121 (1953-08-01), Reck
patent: 3243130 (1966-03-01), Rebechini et al.
patent: 3717183 (1973-02-01), Coss
patent: 3903936 (1975-09-01), Bergmann
patent: 3949944 (1976-04-01), Bent
Combs E. M.
Ebrains, Inc.
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