Impact drill
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United States of America Patent
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Aug 22, 2006
Grant Date -
Feb 10, 2005
app pub date -
Aug 6, 2004
filing date -
Aug 6, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An impact drill minimizing transmission of vibration to a handle gripped by a user's hand. A spindle extends through a main frame and is movable in its axial direction and rotatable about its axis. A first ratchet is rotatable and axially movable together with the spindle. A second ratchet is axially movable but unrotatable. In an impact drilling mode, the first ratchet is brought into abutment with the second ratchet so that the spindle is reciprocally moved in the axial direction.
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