Sheet feeding or delivering – Feeding – Separators
Patent
1996-03-19
1999-04-13
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
Separators
271121, 271126, 271155, B65H 306
Patent
active
058935550
ABSTRACT:
A sheet feeding apparatus includes: a sheet feeding table on which sheets are stacked, the sheet feeding table being vertically movable; a sheet feeding roller mechanism provided in a vertical movement path of the sheet feeding table, the sheet feeding roller mechanism having a roller for feeding the sheets from the sheet feeding table one at a time, the roller being vertically displaceable; a spring for urging the sheet feeding roller mechanism in a direction of downward movement of the sheet feeding table; a detector for detecting when, during the upward movement of the sheet feeding table, the sheet feeding roller mechanism is lifted to a predetermined position against the spring, to stop the upward movement of the sheet feeding table; and a movable member movable and lockable for operating a change-over mechanism for changing the raised position of the sheet feeding roller mechanism which is obtained when the sheet feeding roller mechanism is detected by the detector.
REFERENCES:
patent: 3981497 (1976-09-01), Feinstein, Jr. et al.
patent: 4811940 (1989-03-01), Goeltz
patent: 5228677 (1993-07-01), Asakawa
patent: 5375826 (1994-12-01), Flores
Kawada Sunichirou
Noguchi Yoshihiro
Riso Kagaku Corporation
Skaggs H. Grant
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