Importance

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Abstract

A tool suspension arm provides isolation to a user from torque produced by a hand tool while allowing substantial freedom in positioning the hand tool relative to a workpiece. The arm has a housing defining an axially extensive cavity open at one end. An axially extensive rod is received by the axially extensive cavity through the open end for longitudinal movement relative to the housing. The axially extensive rod is splined and is closed in the axially extensive cavity of the housing by a splined hub insert inserted over the axially extensive rod into the open end of the axially extensive cavity. Cooperation between the splined surfaces largely eliminates play between the rod and housing and rotationally locks rod and housing preventing reactive twisting movement of the tool in use.

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First Claim