Advancing material of indeterminate length – Means to engage longitudinally spaced modifications in material – Pins on flexible belt or chain
Patent
1988-02-19
1989-06-06
Petrakes, John
Advancing material of indeterminate length
Means to engage longitudinally spaced modifications in material
Pins on flexible belt or chain
226 76, 4006162, 4006163, B65H 2020, B41J 1126, G03B 130
Patent
active
048364304
ABSTRACT:
A paper feed apparatus for a printer, having a belt type paper feed mechanism and a feed wheel both mounted on a frame. The belt type paper feed mechanism is of a construction in which a driving sprocket and two driven sprockets are arranged so that the respective rotational axes are positioned at the angles of a triangle, and in these positions the three sprockets are rotatably supported by the frame, and an endless belt is entrained about those sprockets. The endless belt has feed pins erected in a row at predetermined intervals on its outer peripheral surface. The feed wheel is supported by the frame rotatably about a rotational axis parallel to that of the driving sprocket in a position close to the same sprocket, and it has feed pins radially erected in a circumferential row at predetermined intervals on its outer peripheral surface. The driving sprocket and the feed wheel are driven synchronously so that the outer peripheral surface speed of the endless belt and that of the feed wheel being equal to each other.
REFERENCES:
patent: 4428519 (1984-01-01), Reichl et al.
patent: 4475677 (1984-10-01), Rutishauser
patent: 4682904 (1987-07-01), Yoshimura et al.
patent: 4742946 (1988-05-01), Hamamichi et al.
Unuma Sadao
Yamashita Masashi
Petrakes John
Tokai Kogyo Kabushiki Kaisha
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