Sheet supplying device for sheet supplying operation

Sheet feeding or delivering – Feeding – Separators

Patent

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Details

271103, 271106, B65H 308

Patent

active

050803441

ABSTRACT:
A sheet supplying device is disclosed comprising a drive shaft, a first arm, a second arm, an elevator arm having a suction cup for attracting a sheet, and a roller. When the drive shaft starts to rotate counterclockwise, the first arm rotates counterclockwise together with the elevator arm until the roller disposed on the elevator arm is in contact with the uppermost sheet. When the roller contacts the uppermost sheet, the elevator arm starts to slide along the first arm and rotates clockwise about a point at which the roller contacts the uppermost sheet. The elevator arm and the first arm continue to move until the suction cup contacts the uppermost sheet, and then the suction cup is actuated to attract the uppermost sheet. When the suction cup has attracted the uppermost sheet, the drive shaft starts to rotate clockwise, the first arm rotates clockwise, and then the elevator arm with the suction cup attracting the sheet slides along the first arm. When the sliding of the elevator arm along the first arm is finished, the first arm further rotates clockwise together with the elevator arm, and the sheet moves upwardly and is fed along the feeding direction to the sheet feed path.

REFERENCES:
patent: 4494743 (1985-01-01), Kushmaul
patent: 4518159 (1985-05-01), Nishibori
patent: 4968019 (1990-11-01), Tanable
patent: 5005818 (1991-04-01), Hayashi

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