Driving mechanism for a type drum in a printer

Details Driving mechanism for a type drum in a printer Driving mechanism for a type drum in a printer

1985-02-22

1986-07-29

Burr, Edgar S.

Printing

Selective or progressive

Bed and platen machines

74411, 101 9333, 101 9334, 101109, B41J 910

Patent

active

046025618

ABSTRACT:
An impact printer has a type drum, a plurality of hammers, a type drum gear secured to a shaft of the type drum, and a gear train including a drive gear and an intermediate gear engaged with the drive gear and type drum gear for driving the type drum. A lever is provided to rotate about a shaft of the drive gear. The intermediate gear is rotatably supported on the lever at one end thereof, and a spring is provided for urging the lever in the direction that the intermediate gear engages with the type drum gear. The rotational direction of the type drum gear is such that the rotation of the type drum gear causes the intermediate gear to revolve around the drive gear to brake the type drum.

REFERENCES:
patent: 2513217 (1950-06-01), Tomlines
patent: 3180168 (1965-04-01), Harris
patent: 3218966 (1965-11-01), Petit
patent: 4104967 (1978-08-01), Okabe
patent: 4336752 (1982-06-01), Asakura et al.

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