Sheet feeding or delivering – Feeding – With means to align sheet
Patent
1989-10-31
1991-08-13
Schacher, Richard A.
Sheet feeding or delivering
Feeding
With means to align sheet
271245, 271258, B65H 702
Patent
active
050390856
ABSTRACT:
A sensing device is disclosed for sensing the front edge (1a) or the rear edge (1b) of a recording material carrier (1) in a processing apparatus, wherein a feeler probe lever (2) rests on the spring-supported switching element (3a) of a microswitch (3), and wherein the connection terminal contacts (5a, 5b) of the microswitch (3) are connected to an electronic control or, respectively, display circuit (4). The invention device presents a purely mechanical, economically produceable sensing device which functions for all kinds of recording material carriers and which is wear-resistant and allows to determine with high accuracy the front edge (1a) or the rear edge (1b) of a recording material carrier (1). A first feeler lever arm (2a), pivotable into the recording material carrier path (6), forms at its tip (9) a detent stop face (11) perpendicular in stop position (10) and rectangular or nearly rectangular for the front edge (1a) of the recording material carrier (1) relative to the path of the recording material carrier.
REFERENCES:
patent: 2227202 (1940-12-01), Schmidt
patent: 4708456 (1987-11-01), Shibata
Kasper Horst M.
Mannesmann Aktiengesellschaft
Schacher Richard A,.
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