Undirectional ratchet utilizing an articulated pawl

Details Undirectional ratchet utilizing an articulated pawl Undirectional ratchet utilizing an articulated pawl

1992-01-10

1994-06-14

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 1812

Patent

active

053202988

ABSTRACT:
The invention is embodied in an articulated pawl. This pawl is designed to reliably drive a take-up reel on a tape and reel component feeder. By always engaging teeth on the reel, the pawl is prevented from skipping teeth during the return phase of the reel drive cycle. The addition of an articulated arm on the pawl prevents the pawl from skipping teeth on the reel during the drive phase of the reel drive cycle. The articulated arm ensures that either the tooth on the base of the pawl or the tooth on the articulated arm engages a tooth, or both engage teeth, on the reel during the drive phase. This invention ensures the positive and repeatable rotation of the take-up reel.

REFERENCES:
patent: 870307 (1907-11-01), McCool
patent: 1079700 (1913-11-01), Gibson
patent: 1366885 (1921-01-01), Ness
patent: 1445430 (1923-02-01), Dardani
patent: 3581586 (1971-06-01), Blackburn
patent: 3944162 (1976-03-01), Henderson
patent: 3985314 (1976-10-01), Booth
patent: 4260271 (1981-04-01), Kondur

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