Pneumatic striking mechanism and hand-held power tool
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United States of America Patent
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Dec 1, 2015
Grant Date -
Oct 21, 2010
app pub date -
Apr 19, 2010
filing date -
Apr 20, 2009
priority date (Note) -
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Abstract
A pneumatic striking mechanism includes a guide cylinder in which a freely moving piston and an exciter piston are arranged movably along a striking axis. The guide cylinder has a plastic. The striking mechanism includes a pneumatic chamber sealed off by the guide cylinder, by the freely moving piston and by the exciter piston, as well as a drive for periodically moving the exciter piston, as a result of which the freely moving piston is excited to execute a periodical movement between the striking surface and the exciter piston.
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