Tool driving or impacting – Drive adjustable to completely change kind of drive – Adjustable to impacting device
Patent
1984-03-19
1985-08-27
Yost, Frank T.
Tool driving or impacting
Drive adjustable to completely change kind of drive
Adjustable to impacting device
74 60, 173109, 173116, 173123, E02D 702
Patent
active
045372640
ABSTRACT:
A hammer drill has a housing provided with a tool chuck in which a tool is to be mounted. A drive is provided which is capable of rotating and/or axially impacting the tool chuck. This drive includes a piston reciprocable in axial direction of the tool chuck, a drum rotating on a shaft extending parallel to the direction of reciprocation of the piston and provided with a circumferentially extending cam track, and a transmitting arrangement which travels in part in engagement with the cam track and which has another part connected with the piston to reciprocate the same.
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Bleicher Manfred
Falchle Jorg
Muller Frank
Schmid Wolfgang
Wanner Karl
Phan Hien H.
Robert & Bosch GmbH
Striker Michael J.
Yost Frank T.
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