Hand tool for tightening/loosening screw thread of e.g. screw, for weak person, has planet wheels arranged between gear wheel and gear ring, and transferring rotary motion of hand grip with reduced speed onto output shaft

摘要

The tool has an intermediate gear box located between a hand grip and a turner in a housing. The box has a central gear wheel connected with the grip, and a gear ring connected over a shaft. The output shaft of the box is connected with an intermediate gear box of the turner across the housing. Planet wheels (3,4) arranged between the gear wheel and the gear ring, transfers rotary motion of the grip with reduced speed onto the shaft.