Ratchet wrench with tooth breakage resistance
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United States of America Patent
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-
Jun 19, 2018
Issued Date -
N/A
app pub date -
Aug 30, 2016
filing date -
May 10, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A ratchet wrench with tooth breakage resistance includes a body having a driving hole and a transmission hole intersecting with the driving hole. An inner periphery of the driving hole includes two adjoining portions on opposite sides of the transmission hole. An arcuate portion extends between the two adjoining portions. A separate tooth breakage preventing device is mounted in the arcuate portion and includes a contact face in contact with one of first and second outer toothed sections of either of two first pawls to prevent tooth breakage between a toothed portion of the driving hole and the one of the first and second outer toothed sections of either of the first pawls when the body is rotated to provide a ratcheting function for driving the fastener.
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