Self-adjusting closed-loop friction feeder

Details Self-adjusting closed-loop friction feeder Self-adjusting closed-loop friction feeder

1991-09-30

1992-11-17

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Separator and conveyor

271 34, 271110, 271111, 271116, 271117, 271121, B65H 500

Patent

active

051636662

ABSTRACT:
An apparatus feeds and separates sheets individually from a stack of sheets. A nudger is disposed adjacent to at least a portion of the stack, and a mechanism, including a rotatable friction feed belt thereon, is disposed adjacent a sheet on the stack to be fed. A variable normal force is provided between the nudger and the friction feed belt of the mechanism. A sensor detects a lead edge of a sheet at a preselected location relative to the mechanism, and the increase in the normal force between the mechanism and the nudger is stopped when the lead edge of a sheet is detected by the sensor.

REFERENCES:
patent: 3934869 (1976-01-01), Strobel, Jr.
patent: 3966189 (1976-06-01), Taylor et al.
patent: 4475732 (1984-10-01), Clausing et al.
patent: 4561644 (1985-12-01), Clausing
patent: 4572498 (1986-02-01), Shiozawa
patent: 4750726 (1988-06-01), Looney
patent: 4750727 (1988-06-01), Looney
patent: 4900003 (1990-02-01), Hashimoto
patent: 4934684 (1990-06-01), Gysling
patent: 5006903 (1991-04-01), Stearns

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