| 摘要 |
A reversible, stepless one way clutch mechanism which is suited for use in screwdriver type hand tools according to one embodiment. The clutch mechanism has a simplified torque transmitting friction element which is direction selectable (10) by a slide switch (50), the friction element being a flat plate (20) substantially surrounding an output shaft (40), the friction element contacting smooth walls inside of a metal cylinder (30) which is formed from a single thickness metal sheet through a deep drawing process.
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