Dispensing machine

Claim 2

A dispensing machine for dispensing selected articles comprising: an article storage means having a plurality of vertically-spaced parallel-inclined shelves each capable of feeding articles to a pick-up station at the lower end of the shelf, said pick-up stations being arranged vertically; an article carrier capable of supporting one or more articles; a carriage movable vertically past each of said pick-up stations to a delivery station, said article carrier being mounted on said carriage; a movable stop at each pick-up station selectively operable to release an article onto the article carrier when the carriage is adjacent a pick-up station; actuator means mounted on the carriage for actuating a selected movable stop; and means for moving the carriage vertically, for causing it to stop adjacent a pick-up station from which an article is to be taken, for actuating the actuator means whereby the article is released onto the article carrier, and for continuing movement of the carriage to place the article at the dispensing station.

Claim 3

A dispensing machine according to claim 1, wherein the article carrier is pivotally mounted on the carriage and tipping means are provided at the delivery station to pivot the article carrier and thereby tip the article or articles supported thereon into a fixed delivery position.

Claim 4

A dispensing machine according to claim 2, wherein the tipping means comprise a fixed stop at the delivery station which extends outwards so that an edge of the article carrier abuts the stop when at the delivery station, further vertical movement of the carriage thereby causing the article carrier to pivot towards the delivery position.

Claim 5

A dispensing machine according to claim 1, wherein each movable stop is a segment of a hollow cylinder pivotable about its longitudinal axis and spring urged into a position in which it prevents movement of articles out of the pick-up station, the actuator means causing the movable stop to pivot into a position in which the end article at the pick-up station is released.

Claim 6

A dispensing machine according to claim 1 wherein each pick-up station has sensor means for sensing the presence or absence of an article at the pick-up station and control signal generating means responsive to the presence of the carriage adjacent the pick-up station and to the state of the sensor means, whereby to generate a signal for inhibiting operation of the release means when no article is present at the pick-up station.

Claim 7

A dispensing machine according to claim 5, wherein each pick-up station has a light emitting device positioned adjacent the path of movement of the carriage and the control signal generating means comprises a light sensitive device mounted on the carriage which is sensitive to the light emitting devices, the sensor means being arranged to prevent passage of light from the light emitting device to the light sensitive device when there is no article at the pick-up station.

Claim 8

A dispensing machine according to claims 4, 5 or 6, having a control circuit responsive to control signals determined by the vertical position of the carriage and control signals from customer operated selector means, whereby to dispense selected articles from predetermined pick-up stations.

Claim 9

A dispensing machine according to claim 1 wherein said actuator means comprises a bar carried by and slidable relative to the carriage, and wherein means are provided for causing relative movement between the bar and the carriage to enable the bar to engage the selected movable stop.

Claim 10

A dispensing machine according to claim 8 wherein said actuator means comprises a solenoid on said carriage.

Claim 11

A dispensing machine for dispensing selected articles comprising: an article storage means having a plurality of vertically-spaced parallel-inclined shelves each capable of feeding articles to a pick-up station at the lower end of the shelf, said pick-up stations being arranged vertically; an article carrier capable of supporting one or more articles; a carriage movable vertically past each of said pick-up stations to a delivery station, said article carrier being mounted on said carriage; a movable stop at each pick-up station selectively operable to release an article onto the article carrier when the carriage is adjacent a pick-up station; actuator means mounted on the carriage for actuating a selected movable stop; and means for moving the carriage vertically, for causing it to stop adjacent a pick-up station from which an article is to be taken, for actuating the actuator means whereby the article is released onto the article carrier, and for continuing movement of the carriage to place the article at the dispensing station; wherein each pick-up station has sensor means for sensing the presence or absence of an article at the pick-up station and control signal generating means responsive to the presence of the carriage adjacent the pick-up station and to the state of the sensor means, whereby to generate a signal for inhibiting operation of the release means when no article is present at the pick-up station; and wherein each sensor means comprises a lever positioned so as to be depressed by an article at the pick-up station and the control signal generating means comprises, at each pick-up station a resilient lever movable with the sensor lever and an electrical switch operable by the resilient lever when the sensor lever is depressed, and on the carriage a stop capable of flexing the resilient lever sufficiently to change the state of the switch when the sensor bar is depressed.

Claim 12

A dispensing machine for dispensing selected articles comprising: an article storage means having a plurality of vertically-spaced parallel-inclined shelves each capable of feeding articles to a pick-up station at the lower end of the shelf, said pick-up stations being arranged vertically; an article carrier capable of supporting one or more articles; a carriage movable vertically past each of said pick-up stations to a delivery station, said article carrier being mounted on said carriage; a movable stop at each pick-up station selectively operable to release an article onto the article carrier when the carriage is adjacent a pick-up station; actuator means mounted on the carriage for actuating a selected movable stop; and means for moving the carriage vertically, for causing it to stop adjacent a pick-up station from which an article is to be taken, for actuating the actuator means whereby the article is released onto the article carrier, and for continuing movement of the carriage to place the article at the dispensing station; wherein each pick-up station has sensor means for sensing the presence or absence of an article at the pick-up station and control signal generating means responsive to the presence of the carriage adjacent the pick-up station and to the state of the sensor means, whereby to generate a signal for inhibiting operation of the release means when no article is present at the pick-up station; and wherein each sensor means comprises a lever positioned so as to be depressed by an article at the pick-up station and the control signal generating means comprises, at each pick-up station a resilient lever movable with the sensor lever and an electrical switch operable by the resilient lever when the sensor lever is depressed, and on the carriage a stop capable of flexing the resilient lever sufficiently to change the state of the switch when the sensor bar is depressed.

Claim 13

A dispensing machine according to claim 10 having a control circuit responsive to control signals determined by the vertical position of the carriage and control signals from customer operated selector means, whereby to dispense selected articles from predetermined pick-up stations.

Claim 14

A dispensing machine according to claim 11 wherein a pusher element is provided at the delivery station, the pusher element being operable to engage an article at the delivery station and push it through a delivery port.

Claim 15

A dispensing machine according to claim 10 wherein a pusher element is provided at the delivery station, the pusher element being operable to engage an article at the delivery station and push it through a delivery port.

Claim 16

A dispensing machine according to claims 1 or 10, wherein a pusher element is provided at the delivery station, the pusher element being operable to engage an article at the delivery station and push it through a delivery port.