Patent GB-1486522-A (GB)
Title: Vending machines
IPC: G07F11/16
Filed: 1975-05-21
Abstract: 1486522 Vending machines UNIVERSAL VENDORS Inc 21 May 1975 [29 May 1974] 21723/75 Heading A4T [Also in Division G4] A coin-freed vending machine comprises three dispensing devices 24, 26, 28 located within a housing, each dispensing device being selectively operable by a respective hand-operable knob 44 and a plunger 42 connected therewith, the movement of a knob 44 and plunger 42 outwardly with respect to the housing to permit the dispensing of an article being permitted only when the appropriate coins have been inserted into the machine. An upper and lower bar 32, 34 extend in a direction normal to the direction of movement of the plungers 42, the bars having respective studs 38, 40 formed thereon and being movable to the right in Fig. 5, when a knob and plunger is pulled out, towards pairs of latching fingers 122, 124, 126 between which a respective coin of a set of inserted coins is grasped. A projection 92 which is mounted on the end of the bar 32 engages a flat side of the coin located between the pair of fingers 122, while projections 100, 102 mounted at the end of the bar 34 engage respectively with the coins located between the pairs of fingers 124, 126, the three coins then being pushed by the respective projections into a coin receptacle (166), Fig. 3 (not shown) thereby permitting outward movement of the knob and plunger through a full stroke and when the knob and plunger 44, 42 are then released they return under the action of a spring 74 to their original inner positions, during which return movement a flange 64 of a lever arm 62 which is pivotally mounted on the plunger 42 pushes the lowermost article of the article stack associated with that knob and plunger rearwardly for discharge through an exit aperture of the machine. If there were no coins present between the sets of fingers 122, 124, 126, or if one of the set of coins were missing, the projections 92, 100, 102 would engage with the fingers, and as the latter are not spread apart by a coin they would prevent further movement of the projections and thus the further movement of the bars 32, 34 and the knob and plungers, 44, 42, to prevent a dispensing action occurring. Initially, when coins are inserted into the machine they are diverted from a coin-sorter (157) by a coin guide (156) to the appropriate pair of latching fingers, Fig. 2 (not shown), each coin taking up a vertical position between its associated fingers, and then the customer pulls out the knob 44 of the selected dispensing device so that upper and lower cam surfaces 50 provided on a member 46 attached to the associated plunger 42 engage with the studs 38, 40 respectively to cause movement of the bars 32, 34 to the right in Fig. 5 in order for a dispensing operation to occur. A lever (158) which is pivotally mounted adjacent the sets of latching fingers is engageable with a finger of the pair 126 to hold the latter in an open condition, so that a coin is not required for that pair 126 in order to effect a dispensing action, (Fig. 2), the lever (158) thus providing for selectivity of the coins required. Springs assist the return of the bars 32, 34 to their original position, during which, cam surfaces 51 on the member 46 engage the studs 38, 40 thereby assisting the return of the bars 32, 34. If a customer, having inserted the coins into the machine, decides not to dispense an article, he pulls a coin-return member (18) outwardly thus aligning apertures in a flange (172) of the member (18) with the coins held by the three sets of fingers so that the coins then drop through the apertures to a coin-return shoot (164, Fig. 2).