Tool driving or impacting – Impacting devices – With means for rotating tool
Reexamination Certificate
2005-07-19
2005-07-19
Rada, Rinaldi I. (Department: 3721)
Tool driving or impacting
Impacting devices
With means for rotating tool
C173S109000
Reexamination Certificate
active
06918450
ABSTRACT:
An electric hand power tool formed as a hammer drill or an impact hammer drill has a housing, a drive transmission received in the housing and having an intermediate transmission for turning a tool, an impact mechanism with a swinging drive for delivering axially oriented impacts to the tool, and a drive shaft, a transmission toothed wheel fixed on the transmission shaft for turning the latter, a drive bearing provided on the swinging drive and loosely arranged on the transmission shaft, a manually releasable coupling provided for switching off the impact mechanism and connecting the drive bearing with the transmission shaft for a rotation transmission, a crank-shaped flat switching plate provided for releasing the coupling and turnably supported on a receiving dome arranged above the transmission shaft, a drive pin operative for turning the switching plate under the receiving dome and engaging the switching plate, and a handle.
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Baumann Otto
Lebisch Helmut
Saur Dietmar
Weiss Michael
Chukwurah Nathaniel
Rada Rinaldi I.
Robert & Bosch GmbH
Striker Michael J.
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