FIELD: machine engineering, namely powered tools such as drills, screw drivers and rotary cutting tools.
SUBSTANCE: multi-speed transmission unit for rotary powdered tool includes several transmission gears. At least two transmission gears have movable reduction member that provides operation of transmission gears in active and in passive modes. Movable reduction members are joined with mechanism for switching reduction members in order to provide at least three reduction degrees or gear ratio values.
EFFECT: powdered tool with relatively large range of reducing revolution number.
91 cl, 38 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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RU2601529C2 |
