Microfiche feeding mechanism

Details Microfiche feeding mechanism Microfiche feeding mechanism

1984-10-29

1987-03-17

Halvosa, George E. A.

Sheet feeding or delivering

Feeding

Separator and conveyor

271145, 271170, 271 19, B65H 306

Patent

active

046501754

ABSTRACT:
A sheet feeding mechanism for feeding individual sheets of material, such as for example microfiche folders, is disclosed which includes a tray mounted in a frame and having a pivoted bottom wall. A pair of sheet retaining claws are pivotally mounted on the tray and positioned at the corners thereof at the front of the open front edge of the tray to normally block movement of the sheet in a stack supported on the bottom wall from moving forwardly out of the tray. The bottom wall is spring biased upwardly, and an advancing device is provided for advancing individual sheets from the top of the stack. The advancing device includes a rotating cam having a sector shape enlargement formed thereon for engaging the top sheet of the stack as the cam rotates. The enlargement urges the stack downwardly against the spring bias on the pivoted bottom wall while also urging the top sheet in the stack in the direction of the rotation of the cam. This moves the corners of the top sheet against the claws, causes the sheet to buckle, and to separate from the stack, whereby the sheet is fed over the claws and away from the stack.

REFERENCES:
patent: 135599 (1973-02-01), Scholfield
patent: 3406627 (1968-10-01), Becker
patent: 4106763 (1978-08-01), Tani et al.
patent: 4219192 (1980-08-01), Burke
patent: 4395034 (1983-07-01), Fukui
patent: 4437656 (1984-03-01), Onada et al.

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