Electrically driven fastening appliance

Details Electrically driven fastening appliance Electrically driven fastening appliance

B - Operations, Transporting

25

B

81/23

B25B 23/147 (2006.01)

Patent

CA 1090628

- 1 - Abstract: An electrically operated fastening appliance with an automatic controlling clutch mechanism by which on termination of the fastening operation the power transmission from the motor (13) to the driving spindle (36) is instantly discontinued to prevent application of the excessive torque to the screw-threaded connecting means to be tightened and transmission of undesired reversing torque. The automatic controlling clutch mechanism includes a central gear (40) secured to a drive shaft (38) derived from the motor (13), planetary gears (30) supported on a planet carrier (32) and an annulus member (29) with an internal gear (28) acco- mmodated turnably in a cylindrical casing (14) and clutch elements interposed between the annulus member (29) and the casing (14).

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