Invention Grant
US07712548B2 Hand-held power tool with an oscillation damper 有权
带振动阻尼器的手持式电动工具

Hand-held power tool with an oscillation damper
Abstract:
A hand-held power tool includes a pneumatic percussing mechanism (3) located in the power tool housing (2) and having an anvil (5) and a percussion piston (4) for applying blows to the anvil (5), and at least one oscillation damper (6, 6′) including an oscillation damping mass (7, 7′), at least one spring (8a, 8a′) for compressively preloading the damping mass (7, 7′) against the power tool housing (2), and an axially displaceable excitation member (9) for actively exciting the oscillation damper (6, 6′) in response to the anvil (5) occupying an operational position.
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