Power tool

Details Power tool Power tool

B - Operations, Transporting

25

F

B25F 5/00 (2006.01) A47L 11/164 (2006.01) A47L 11/40 (2006.01) B24B 23/03 (2006.01) B24B 29/00 (2006.01) B24B 45/00 (2006.01)

Patent

CA 2187262

A power tool is provided which includes a shaft rotatably driven by the motor and an axial lining in the central bore of the working element. A counterweight assembly is attached to the shaft for rotation therewith. A post on the counterweight assembly is insertable in the axial lining. A detent is mounted to the post and includes arcuate cam surfaces. The detent is movable between (1) an extended position relative to the post, and (2) a depressed position relative to the post wherein the axial lining engages the cam surfaces and allows the post to be inserted in the axial lining. A circumferential groove on the axial lining is capable of capturing the detent in the extended position to provide for substantially fail-safe operation of the tool with the post inserted in the axial lining.

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