Thickness filter device for use in an insertion chute of a reade

Details Thickness filter device for use in an insertion chute of a reade Thickness filter device for use in an insertion chute of a reade

1997-02-12

1998-04-21

Raevis, Robert

Measuring and testing

Testing of apparatus

235480, 271902, G06K 1308

Patent

active

057419868

ABSTRACT:
A thickness filter device is for use in an insertion chute of a reader for tickets, cards or the like. The device includes a mobile assembly comprising a stirrup member in the form of a yoke pivoting about a fixed axis parallel to a flat support along which the ticket, card or the like passes and perpendicular to a direction of displacement of said ticket, card or the like along this plane and a roller mounted in the stirrup member. The roller has a support shaft parallel to the fixed shaft and mounted in the stirrup member with play so that, in the absence of any ticket, card or the like between the roller and the support plane, it allows the roller to be pressed onto this plane with a pressure calibrated by traction spring means. This play also allows the roller, under the effect of a force opposing the action of the spring means, to bear against a wall of the stirrup member linking two parallel flanges of said stirrup member forming a yoke. With no ticket, card or the like on the support plane, the plane containing the fixed shaft and the support shaft is at an acute angle .alpha. to a plane normal to the support plane and containing the fixed shaft. The plane containing the two shafts is on the same side of the normal plane as the ticket, card or the like before it is inserted into the machine. The stirrup member is additionally acted on by spring means maintaining the angle .alpha. constant provided that the only friction force on the roller is that of its shaft during its rotation, and therefore with no contact between the roller and the wall of the stirrup member.

REFERENCES:
patent: 3947663 (1976-03-01), De Sandre et al.
patent: 4007356 (1977-02-01), Stucke et al.
patent: 4534551 (1985-08-01), Jones
patent: 5179504 (1993-01-01), Kitahara
IBM, Lightner et al., "Feed Mechanism for Document Cards"., Jun. 1972.

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