Ribbon drive clutch

Details Ribbon drive clutch Ribbon drive clutch

1981-10-14

1984-03-13

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Automatic

192 4891, 192 4892, 400214, 400225, 4006971, F16D 1106, B41J 3350

Patent

active

044361920

ABSTRACT:
A ribbon drive clutch comprises a stepper motor which has an output shaft on which there is mounted a clutch plate and a pair of cams. A plurality of pawls are each pivotally mounted on the clutch plate and are disposed to engage the first cam for rotation with the output shaft responsive to rotation of the output shaft in a first direction and disposed to engage the second cam for rotation with the output shaft responsive to rotation of the output shaft in a second direction. A first cam follower is disposed for operation of a ribbon drive linkage to drive a first ribbon responsive to rotation of the first cam and a second cam follower is disposed for operation of a ribbon drive linkage to drive a second ribbon responsive to rotation of the second cam.

REFERENCES:
patent: 2150227 (1939-03-01), Lake et al.
patent: 2972402 (1961-02-01), Howard
patent: 3367471 (1968-02-01), Berill
patent: 3384211 (1968-05-01), Placke et al.
patent: 4247210 (1981-01-01), Kacmarcik et al.
patent: 4329072 (1982-05-01), Kacmarcik
patent: 4347007 (1982-08-01), Schaefer
Schaefer, "Two-Color Cartridge Ribbon System with Correction", vol. 22, No. 6, 11/79, IBM.

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