IMPACT RATCHET WRENCH
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United States of America Patent
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N/A
Issued Date -
Jun 12, 2014
app pub date -
Jul 1, 2013
filing date -
Jul 2, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An impact ratchet wrench includes a motor assembly, a transmission assembly, an impact assembly and a ratchet assembly which are arranged in a housing and connected with each other in turn. The motor assembly drives the transmission assembly and the transmission assembly includes a cylindrical gear train for providing an output at a first rotating speed or a second rotating speed lower than the first rotating speed. The impact assembly includes a striking member that is driven by the transmission assembly and an output member. The striking member of the impact assembly provides an increasing torque to the output member intermittently to drive the ratchet assembly.
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