| 摘要 |
FIELD: portable electrically driven tools such as screw drivers, wood screw drivers, drills used in any branch of machine engineering. SUBSTANCE: portable electrically driven tool includes housing, rotation drive unit connected through driving shaft with double-stage reduction gear. The last includes intermediate shaft and spindle supporting driving and driven gear wheels. Tool also includes mechanism for gear shifting and working member. Driven gear wheels mounted on spindle are joined to one block by means of two ´-shaped dowels and they are in mutual contact along apertured surfaces. EFFECT: simplified design of tool, enhanced technique of assembling it, reduced size. 2 dwg
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