One-rotation clutch

Details One-rotation clutch One-rotation clutch

1983-12-28

1985-04-16

Yost, Frank T.

Cutting

Tool engages work during dwell of intermittent workfeed

Unicyclic

83283, 192 4R, 192 12BA, 192 17R, B26D 508

Patent

active

045108331

ABSTRACT:
A one-rotation clutch for selectively establishing and interrupting transmission of a drive force from a drive source to an object to be driven. A coil spring loosely surrounds the outer peripheries of mutually opposing sprocket member and a cam member. One end of the coil spring is retained by the cam member and the other end by a sleeve, which is rotatable relative to the sprocket member. A locking member is provided to selectively stop the rotation of the sleeve driven by a solenoid. When the sleeve is stopped, the sprocket member idles. When the sleeve is caused to follow the movement of the sprocket member, the coil spring binds the sprocket member and cam member to impart the drive force to the cam member. A pin is studded on the cam member such that when the cam member is rotated in a predetermined direction, the pin immediately abuts against the locking member to urge it away from the sleeve.

REFERENCES:
patent: 3539041 (1970-11-01), Sacchini
patent: 3779114 (1973-12-01), Rabin
patent: 4154128 (1979-05-01), Kasuga et al.
patent: 4362076 (1982-12-01), Sasaki et al.

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