Vibration reduction apparatus for power tool and power tool...

Details Vibration reduction apparatus for power tool and power tool... Vibration reduction apparatus for power tool and power tool...

2008-01-22

2008-01-22

Nash, Brian D. (Department: 3721)

Tool driving or impacting

Including means to vibrationally isolate a drive means from...

Handle type holder

C173S162100

Reexamination Certificate

active

07320369

ABSTRACT:
A power tool has a handle assembly which is biased by a torsional spring. The torsional spring has an engaging arm the position of which is fixed relative to the housing by an adjusting mechanism. The adjusting mechanism has a lever which extends outside the housing of the power tool, and a cam surface, and is mounted on and rotatable at least partially around an axle. In use, the tension in the torsional spring may be adjusted by movement of the lever. The lever is moved, causing rotation of the adjusting cam around the axle. As a result, the cam surface causes the engaging arm of the spring to be moved axially along the axle and more or less tension is applied to the torsional spring.

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