Reversible ratcheting power tool with synchronized motor and ratchet control
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United States of America Patent
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-
Mar 13, 2001
Grant Date -
N/A
app pub date -
Jul 6, 1999
filing date -
Jul 6, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A reversible ratcheting electric power tool has a reversible DC electric motor having an output coupled to drive a drive shaft through a reversible ratchet assembly. The tool housing has a reversing mechanism which includes a manually operable reversing cap rotatable about the axis of the drive shaft for controlling the ratcheting direction of the ratchet assembly, the cap having a pair of projections which respectively engage the actuator buttons of two direction control microswitches coupled through an on-off switch to a battery. When the ratchet assembly is in a neutral or non-ratcheting condition, both microswitches are in a normal deactuated condition connecting both of the motor terminals to the battery negative terminal. When the selector cap shifts the ratchet assembly to a forward ratcheting condition, one microswitch is actuated to connect one of the motor terminals to the battery positive terminal, and when the selector is moved to a reverse ratcheting direction, it actuates the other microswitch to connect the other motor terminal to the battery positive terminal.
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