Motor driven hand-held machine with two part tool assembly

Details Motor driven hand-held machine with two part tool assembly Motor driven hand-held machine with two part tool assembly

1984-08-29

1986-08-26

Kazenske, E. R.

Tool driving or impacting

Drive control operable by hand engaging manipulating handle

83916, 30241, B23B 4500

Patent

active

046077090

ABSTRACT:
A motor driven portable machine tool has a drive motor and a first gear mechanism which is driven thereby. Spaced from the first gear mechanism is a second gear mechanism, and it is drivingly engageable therewith through a disengageable coupling including a pair of coupling elements, a coiled spring disposed thereabout, and a clutch member rotatably disposed about the coil spring and adapted to tightly coil it about the coupling elements to effect driving engagement therebetween. A latch member is engageable with the clutch member to prevent its rotation, and a stop mechanism is operatively connected to the latch member to engage the latch member with the clutch member after one complete stroke of the tool which is being driven thereby. The stop mechanism may include a cam follower, and a cam surface on one of the gears, so that, upon a single revolution of that gear, the stop mechanism will effect the relatching of the clutch member to terminate the transmission of the power through the clutch.

REFERENCES:
patent: 2967355 (1961-01-01), Yermish
patent: 3025600 (1962-03-01), Leibinger
patent: 3942250 (1976-03-01), Kurosaki
patent: 3988827 (1976-11-01), Sakamoto et al.
patent: 4158913 (1979-06-01), Batson

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