Sheet feeding or delivering – Feeding – By means to convey sheet
Patent
1988-12-13
1990-03-06
Crowder, Clifford D.
Sheet feeding or delivering
Feeding
By means to convey sheet
271 82, 101124, 101409, B41F 1522
Patent
active
049059858
ABSTRACT:
A grip shaft is supported on a cylinder that makes an oscillating (reciprocating rotational) motion. The grip shaft is provided with a grip for holding a printing material. The grip is further provided with a cam follower. A cam is positioned along the path of motion of the cam follower, and the cam follower engages with an opening portion of the cam when the grip is right before a printing material feeder portion, and opens the grip. Further, when the grip reaches the printing material feeder portion, the cam follower moves to a closing portion of the cam, closing the grip to hold a printing material. After the grip has held a printing material, the cam follower disengages from the cam as the cylinder is rotated in the opposite direction. The opening portion and the closing portion composes a continuous cam surface.
REFERENCES:
patent: 3221652 (1965-12-01), Mestre
patent: 3915088 (1975-10-01), Svantesson et al.
patent: 3982922 (1976-09-01), Krenzer et al.
patent: 4311093 (1982-01-01), Abendroth et al.
patent: 4357870 (1982-11-01), Rudolph et al.
patent: 4376412 (1983-03-01), Nagatani
patent: 4448124 (1984-05-01), Nagatani
patent: 4509422 (1985-04-01), Nagatani
patent: 4771691 (1988-09-01), Sakurai et al.
Crowder Clifford D.
Sakura Seiki Co., Ltd.
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