Patent
1980-11-03
1983-01-11
Tollberg, Stanley H.
133 5R, G07D 102
Patent
active
043677606
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a coin dispenser for use in vending machines for giving out change when the value of money inserted into the machine by a customer exceeds the price of the merchandise purchased.
The usual arrangement for dispensing coins is a vertical coin tube which contains a stack of coins of a single denomination. A channel extends horizontally beneath the lower end of the tube and has an upper wall with an aperture aligned with the coin tube and a lower wall with an aperture disposed over a change dispensing passageway. The aperture in the lower wall is offset from the vertical axis of the coin tube so that coins in the coin tube cannot fall directly through the aperture in the lower wall. A slide plate is disposed in the channel and serves to transfer coins from the bottom of the stack in the coin tube to the aperture in the lower wall. A slide plate is disposed in the channel and serves to transfer coins from the bottom of the stack in the coin tube to the aperture in the lower wall. The plate has circular apertures for receiving coins from the stack. The plate can be slid back and forth in the channel between a position in which the aperture in the plate is below the coin tube and there receives a coin from the tube and a position in which it is over the aperture in the lower wall from where the coin falls into the dispensing passageway. The height of the channel is between one and two coin thicknesses so that only one coin at a time can be dispensed. A machine which dispenses more than one denomination of coin as change will have such an arrangement for each denomination of coin.
For the dispenser described above to work reliably the dimensions of the dispenser must closely correspond to the diameter and thickness of the particular denomination of coin being dispensed. This means that the manufacturer of such dispensers for several countries offer a large number of different sizes of mechanism to suit the large variety of sizes of coins in use.
The aim of the present invention is to simplify the design of a coin dispenser so that different sets of coins can be catered for using a small range of parts.
According to the present invention a coin dispenser comprises a channel, an aperture in the upper wall of the channel, a coin tube extending down through the aperture in the upper wall of the channel the lower end of the tube projecting down below the level of the upper wall of the channel, an aperture in the lower wall of the channel offset from the axis of the tube, an apertured slide plate-mounted for reciprocating movement in the channel and means mounting the coin tube with its lower end a predetermined height above the lower wall of the channel.
By using the lower end of the coin tube to form the lowest point on the coin channel the individual slide plates and channels do not have to be made to suit the individual thickness of coins: it is possible to use one size of channel and slide plate to serve a large number of different sizes of coins. The slide plates and channels are used in combination with coin tubes selected from a range of different sizes of coin tubes and the mounting means are used to mount the selected coin tubes at the appropriate height for the particular thickness of coins being used. Thus for the manufacturer the number of different parts needed to meet the requirements of customers in different countries can be substantially reduced. Whilst the mounting means must be made to suit the particular denomination of coins being used, by making inexpensive mounting plates for each coin set, or by assembling the tubes in predetermined positions on a standard mounting plate, for example by using a different mounting jig for each coin set, and staking in position, the part which has the largest number of variants for the mounting plates is expensive to produce or assemble.
An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, of which:
FIG. 1 shows an exploded perspective view of a coin dispenser accordi
REFERENCES:
patent: 1105516 (1914-07-01), Hoefer
patent: 1385360 (1921-07-01), Bruhn et al.
patent: 2629477 (1953-02-01), May
patent: 3822713 (1974-07-01), Frahm et al.
patent: 3841341 (1974-10-01), Englund et al.
patent: 4250905 (1981-02-01), Kobayashi et al.
patent: 4266564 (1981-05-01), Coburn et al.
Thomas Kim
Van Zeggeren Wilhelm A.
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