DC-motor driven vending machine having simplified controls
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United States of America Patent
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-
Dec 28, 1999
Grant Date -
N/A
app pub date -
Nov 1, 1996
filing date -
Nov 1, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A simplified wiring system for an electronically controlled vending machine of the type capable of vending multiple products out of columns, trays or other queuing means, wherein by employing DC motors and various novel circuits, one may reduce controller complexity and assembly time. Selector button sensing and motor drives are connected in a matrix configuration. Sold-out switches are connected in series with the motors. Home switches are connected in series and only momentary continuity interruption is sensed. Separate sold-out switch outputs are eliminated. Interconnect wiring is reduced by mounting both the Home switch and Sold-out switch for each motor on a motor interface board permitting operation of up to 16 motors from a 10-wire ribbon cable.
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