| 摘要 |
This invention presents a flexible power tool in which a flexible drive is utilized to permit the power supplying end to be angularly displaced from the work performing and during powered drive without inherent wobble, which is achieved first by pivotally connecting the power supplying end to the work performing end through a spring biasing device which resists the angular movement of the two ends during powered drive and second by utilizing a unique differential drive shaft in which the two pivoting differential axes are intersecting and coplanar, and the shaft is mounted in the tool in such manner that the coplanar axes can float into alignment with the pivotal axis between the ends of the tool.
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