Hand-held hammer drill
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jan 3, 2002
app pub date -
May 14, 2001
filing date -
Jun 2, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A hand-held hammer drill has a housing and an electric drive motor arranged in the housing. A tool spindle is arranged in the housing and configured to receive a tool. The tool spindle can be driven in rotation by the electric drive motor. The tool spindle has a longitudinal axis and is oscillatingly moveable in a direction of the longitudinal axis. A hammer mechanism is provided to move the tool spindle oscillatingly in the direction of the longitudinal axis. A hydraulic drive is arranged in the housing and configured to drive the hammer mechanism. The hydraulic drive has a hydraulic pump generating a hydraulic pressure for driving the hammer mechanism.
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