Actuating device for use in powered screwdriver

Tools – Wrench – screwdriver – or driver therefor – Machine


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81 5711, 81429, B25B 2100




A powered screwdriver includes a tool head, a lower cylinder, a hollow shaft insertable through the lower cylinder, an upper cylinder engageable with the lower cylinder, a passage defined in the upper cylinder, a motor-driven axle insertable through the passage and engageable with the hollow shaft so that the hollow shaft and the motor-driven axle are slidable but not rotatable with respect to each other and an actuating device including a lower ring securely received in the passage, an actuator with a collar slidably mounted on the motor-driven axle and a tab radially extending from the collar and projecting through a slot defined in the upper cylinder, a spring mounted on the motor-driven axle, an upper ring securely received in the passage and a push-button switch mounted on the upper cylinder. When the powered screwdriver is pushed against a screw, the motor-driven axle is further inserted into the hollow shaft. The collar of the actuator is pushed by means of the hollow shaft. The push-button switch is pressed by means of the tab of the actuator.

patent: 4162639 (1979-07-01), Gill
patent: 4617843 (1986-10-01), Nishida et al.


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Profile ID: LFUS-PAI-O-1921711

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