Electrically driven hammer machine

Details Electrically driven hammer machine Electrically driven hammer machine

1983-09-14

1986-07-22

Kazenske, E. R.

Tool driving or impacting

Impacting devices

Hammer head driven by electric motor

173123, B25D 1300

Patent

active

046013512

ABSTRACT:
An electrically driven hammer machine comprising a driving piston (103) and a hammer piston (104) driven by the driving piston via a pressure gas cushion (106). The driving piston is driven by a brushless alternating current motor (101) via a crank mechanism (105). A solid state inverter (107) in the power supply conduit (102) supplies power of variable amplitude and frequency to the motor.

REFERENCES:
patent: 3718193 (1973-02-01), Wanner
patent: 3741317 (1973-06-01), Unterschweiger et al.
patent: 4099107 (1978-07-01), Eder
patent: 4123692 (1978-10-01), Gilmore et al.
patent: 4311933 (1982-01-01), Riggs et al.

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