Rotary power tool operable in first speed mode and a second speed mode
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United States of America Patent
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May 20, 2014
Grant Date -
Feb 17, 2011
app pub date -
Feb 19, 2008
filing date -
Mar 12, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A rotary power tool operable in a first speed mode and a second speed mode comprising a motor shaft (6), a driveshaft (10) with an axis of rotation (42), a gear (24, 74) that is a component of a transmission (8) for transmitting torque from the motor shaft (6) to the driveshaft (10), a support member (48, 70), at least one bearing member (54, 76) which contacts the gear (24, 74), wherein the gear (24, 74), the support member (48, 70) and the at least one bearing member (54, 76) form an assembly that is in a first position along the axis of rotation (42) when the tool is operating in the first speed mode and is in a second position along the axis of rotation (42) when the tool is operating in the second speed mode, and wherein the at least one bearing member (54, 76) protrudes from the support member (48, 70) in the direction of the gear (24, 74) and rotates when the gear (24, 74) rotates.
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