Tool driving or impacting – Drive adjustable to completely change kind of drive – Adjustable to impacting device
Patent
1981-09-14
1984-05-08
Schmidt, Frederick R.
Tool driving or impacting
Drive adjustable to completely change kind of drive
Adjustable to impacting device
173109, 173116, 192 89A, 192 96, B23B 4516, B25D 1600
Patent
active
044469314
ABSTRACT:
A power driven hammer drill has a tool impacting mechanism, a wobble unit for reciprocating the tool striking mechanism and having a drum member which can be releasably coupled with an intermediate shaft driven by a motor, wherein a switching device is provided outside of a hammer drill housing and arranged so as to disengage a coupling element of the intermediate shaft out of a coupling element of the drum member of the wobble unit against the action of a spring.
REFERENCES:
patent: 2385439 (1945-09-01), Gubbins
patent: 2824455 (1958-02-01), Ristow et al.
patent: 3399441 (1968-09-01), Imamura
patent: 3800901 (1974-04-01), Blomstrom et al.
patent: 3828863 (1974-08-01), Bleicher et al.
patent: 4158970 (1979-06-01), Laughon
patent: 4280359 (1981-07-01), Schmid et al.
Bleicher Manfred
Buck Manfred
Falchle Jorg
Wanner Karl
Olszewski Robert P.
Robert & Bosch GmbH
Schmidt Frederick R.
Striker Michael J.
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