Patent
1980-12-09
1982-12-07
Tollberg, Stanley H.
G07D 904
Patent
active
043621775
ABSTRACT:
A coin counting system for use with a coin handling apparatus such as a coin counting apparatus, a coin sorting apparatus or a coin wrapping apparatus includes a coin guide for guiding a series of coins to be counted therealong and a belt conveyor for conveying the coins in the guide. A light source is disposed at a downstream portion of the guide. Pre- and post-sensors are juxtaposed to each other upstream and downstream in the coin conveying direction and are arranged to receive the light from the light source and to be included temporarily within the generally triangular space, which is defined by the inner wall of the coin guide and by the facing circumferential portions of the two coins being conveyed adjacent to each other, thereby to generate respective signals. A generator circuit is made receptive of the signals of the two sensors for generating an addition signal, when the two coins pass in the normal order from the pre-sensor to the post-sensor, and a subtraction signal when the two coins pass in the abnormal order from the post-sensor to the pre-sensor. Structure is made responsive to the addition and subtraction signals of the control circuit for generating a count signal, when in the normal order, but not when in the abnormal order. A counter counts up the number of the coins in response to the count signal. Thus, the coin having been counted can be prevented from being erroneously counted up even if it is conveyed backward.
REFERENCES:
patent: 3240215 (1966-03-01), Kamei
patent: 4216788 (1980-08-01), Watanabe
Laurel Bank Machine Co. Ltd.
Tollberg Stanley H.
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