Typewriting machines – Sheet or web – For feeding web record-medium
Patent
1988-03-02
1992-03-31
Burr, Edgar S.
Typewriting machines
Sheet or web
For feeding web record-medium
400616, 400605, B41J 1522
Patent
active
051002515
ABSTRACT:
A paper tractor unit is disclosed. The tractor unit which is movably provided for a support member can be selectively moved between a position at which a continuous paper is fed and a position from which the paper is drawn, a paper drawing drive roller and a pinch roller being provided at the position from which the paper is drawn. A release lever is provided which moves in synchronization with a switching position to the position from which the paper is drawn. A pinch roller and a guide shaft are provided for a support plate which is capable of being moved by the release lever. The pinch roller can come into contact with the paper-drawing drive roller and move away from the same. The guide shaft can freely move along a guide portion in a direction in which the pinch roller comes into contact with and moves away from the drive lever. A guide pin is a pinion and a rack is formed on the guide portion for the purpose of engaging with the pinion.
REFERENCES:
patent: 4160606 (1979-07-01), Caenazzo
patent: 4413764 (1983-11-01), Weber et al.
patent: 4475833 (1984-10-01), Sawicki
patent: 4564305 (1986-01-01), Rekewitz et al.
patent: 4571103 (1986-02-01), Takeo et al.
patent: 4579471 (1986-04-01), Hendrischk
patent: 4663722 (1987-05-01), Sato
patent: 4688957 (1987-08-01), Prevignano
patent: 4742946 (1988-05-01), Hamamichi et al.
Adams Bruce L.
Burr Edgar S.
Hilten John S.
Seikosha Co. Ltd.
Wilks Van C.
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