Tool driving or impacting – Impacting devices – Selective axial direction of impact
Reexamination Certificate
2006-08-22
2006-08-22
Sipos, John (Department: 3721)
Tool driving or impacting
Impacting devices
Selective axial direction of impact
C173S093000, C173S093500, C173S162200
Reexamination Certificate
active
07093670
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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Ishikawa Shigeru
Kataoka Kenji
Ohtsu Shinki
Ohzeki Kazuhide
Saito Takuma
Antonelli, Terry Stout and Kraus, LLP.
Chukwurah Nathaniel
Hitachi Koki Co,. Ltd.
Sipos John
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