Coin dispensing apparatus

Information

  • Patent Grant
  • 6210264
  • Patent Number
    6,210,264
  • Date Filed
    Thursday, February 25, 1999
    25 years ago
  • Date Issued
    Tuesday, April 3, 2001
    23 years ago
Abstract
Coin dispensing apparatus is provided comprising a bed (13), a coin holder (14) movable relative to the bed (13) and spaced from the bed by a gap, the coin holder having at least one coin reservoir (15) capable of holding a stack of at least two coins with the lowermost coin in contact with the bed, means (18) to eject the lowermost coin from the apparatus through the gap between the bed and the coin holder, and support means (21) to prevent or restrict tilting of the coin above the lowermost coin as the lowermost coin is ejected. The provision of a support means has the advantage that dispensing apparatus can be arranged such that the lowermost coin lies within the said gap to a much greater extent than with prior art devices. This provides greater control over the coin and therefore makes it less critical for the size of the gap to be very closely matched to the thickness of the coin to be handled.
Description




The invention relates to coin dispensing apparatus, being understood that the term coin includes not only monetary units but also similar shaped items such as tokens.




The invention is particularly concerned with the form of coin dispensing apparatus known as a compact hopper. A prior art form of compact hopper is shown in an exploded perspective form in FIG.


1


.




The prior art compact hopper comprises a base


10


on which is mounted a dispensing unit


11


. A bowl


12


is fitted onto the base to cover the dispensing unit


11


.




The unit


11


comprises a static bed


13


on which is mounted a rotary disc


14


having four holes


15


therein. Each hole


15


has a diameter which is greater than the diameter of the coin to be dispensed.




In use the bowl


12


is filled with coins which lie randomly within the bowl. However, as the disc


14


rotates, coins successively fall into the holes


15


and because the disc


14


has a thickness which is equal to the thickness of several coins, a plurality of coins form short stacks within the holes


15


, the lowermost coin of each stack abutting the bed


13


.




There is a gap between the disc


14


and the bed


13


which is fractionally greater than the thickness of the coin but the lowermost coin of each stack still moves round with the disc


14


because of projections


16


on the disc which protrude below the disc


14


.




Adjacent to a dispensing slot


17


one or more spring loaded fingers


18


protrudes from the bed.




The disc rotates anticlockwise as viewed in FIG.


1


and as the lowermost coin of each stack reaches the finger


18


the coin is squeezed between the projection


16


and the fingers


18


. Initially the fingers


18


are moved back against the action of its spring, storing energy, but when the coin comes into full registration with the slot


17


the stored energy causes the coin to flip out through the slot and the finger returns to the position shown in

FIG. 1

, ready to receive the lowermost coin of the next stack.





FIG. 2

is an underplan of the dispensing device and it can be seen that the shaded coin


19


is about to be squeezed between the pushing projection


16


and the spring loaded fingers


18


.




The prior art arrangement is fairly tolerant of changes in coin diameter, allowing one disc hole size to be used with a range of coins of different diameters. It can be seen from

FIG. 2

that there is quite a difference in size between the diameter of the holes


15


and the diameter of the shaded coin


19


. However, the gap between the disc and the bed is critical to a successful operation and must vary depending upon the thickness of the coin. If the gap is too small, coins will not be able to pass between the disc and the bed to the exit slot. If the gap is too large, the leading edge of a coin will be able to lift up and travel over the top of the fingers and the coin will not be ejected.




Each coin has to be allowed to engage partially in this gap, as the coin travels around the bed, to exercise control over the coin to prevent the leading edge from lifting. However the coin must not be allowed to pass too far into the gap otherwise it will not provide support for the coin immediately above. If the coin immediately above is not supported, then that coin will substantially overhang the lowermost coin and tip downwardly. It may therefore jam or it may hit the spring loaded fingers first, causing the spring loaded fingers to be pushed back too far, such that the lowermost coin rides over the fingers and is not dispensed.




Since the lowermost coin can only be allowed to engage partially in the gap as it travels around the bed, it is only the rear edge of the coin which can be controlled. To exercise a sufficient degree of control, the gap must be very closely matched to the thickness of the coin to be handled.




Hence the actual design of each hopper must be adjusted to suit each specific coin geometry.




We have developed an apparatus which is more tolerant to variations in coin thickness, thus allowing a range of coins to be dispensed efficiently and consistently from a single size of hopper.




The invention provides coin dispensing apparatus comprising a bed, a coin holder movable relative to the bed and spaced from the bed by a gap, the coin holder having at least one coin reservoir capable of holding a stack of at least two coins with the lowermost coin in contact with the bed, means to eject the lowermost coin from the apparatus through the gap between the bed and the coin holder, and support means to prevent or restrict tilting of the coin above the lowermost coin, as the lowermost coin is ejected.




Utilising the support means defined above has the advantage that a dispensing apparatus can be arranged such that the lowermost coin lies within the said gap to a much greater extent than with the prior art devices.




This may be brought about by providing a coin pushing device on the rotor which is appropriately spaced from the edge of the associated hole.




Since with the support means according to the invention, the lowermost coin can lie within the gap to a much greater extent, the thickness of the gap can be somewhat larger than the thickness of the coin, while still exerting a significant degree of control over lifting movement of the leading edge of the coin.




The coin holder may comprise a rotor which is rotatably mounted on the bed, the rotor having at least one hole therethrough, which hole acts as the coin reservoir.




The support means to prevent or restrict tilting of the coin above the lowermost coin may comprise a projection at the lower end of the hole.




The projection may comprise a ledge positioned to support the leading edge of the coin above the lowermost coin.




The rotor of the apparatus according to the invention may comprise a disc.




The disc may have a plurality of coin supporting holes therein, for example three or four.




The apparatus may be provided with at least one spring loaded finger against which a coin to be dispensed can be squeezed by the coin pushing member.




Where a plurality of holes is provided, the plurality of associated ledges may be provided by mounting an appropriately shaped member between the bed and the disc.











By way of example a specific embodiment of the invention will now be described, with reference to the accompanying drawings, in which:





FIG. 1

is an exploded perspective view of a prior art compact hopper;





FIG. 2

is an underplan view of the disc of the prior art apparatus shown in

FIG. 1

;





FIG. 3

is a view similar to

FIG. 2

, but showing the underside of a disc of an embodiment of coin dispensing apparatus according to the invention;





FIG. 4

is a plan view of the disc shown in

FIG. 3

;





FIG. 5

is a side view of the disc shown in

FIGS. 3 and 4

; and





FIG. 6

is a plan view of the coin dispensing unit of the apparatus with the various stages of a coin being dispensed shown in dotted lines.











The prior art apparatus shown in

FIGS. 1 and 2

has already been described. It will be appreciated from a study of

FIG. 2

that the coin which is in contact with the bed, shown as the shaded coin


19


, lies substantially wholly within the associated hole


15


, and therefore provides a good support for the coins stacked above it. However, the lowermost coin


19


is not particularly well controlled, and vibration could cause the coin to jump, which might cause the coin to jump or to ride over the fingers


18


.




With the coin dispensing apparatus according to the invention, the pusher


16


(see

FIG. 3

) associated with the hole


15


is spaced well clear of the trailing edge of the hole


15


, instead of being positioned at the edge of the trailing edge of the hole


15


, as in the prior art apparatus shown in FIG.


2


.




This means that as the lowermost coin


19


travels around the bed, being moved by the pusher


16


, the coin lies substantially within the gap between the bed and the disc, and this provides a good degree of control over undesirable upward movement of the coin. Any movement of the leading edge of the coin is particularly well controlled.




Although this means that the coin


19


is well controlled, the coin


20


above (see

FIG. 5

) substantially overhangs the coin


19


and is not particularly well supported thereby. However, to prevent the coin


20


from tipping, thus causing a jam or causing the coin


20


to hit the fingers


18


first, a support ledge


21


is provided at the leading edge of the hole


15


and the leading edge of the coin


20


rests on this ledge.




The disc according to this embodiment has three holes


15


and as can be seen from

FIG. 4

, each hole is provided with its associated ledge


21


.




As can be seen from FIG.


3


and the plan view of the entire coin dispensing unit shown in

FIG. 6

, ledges


21


are provided by an intermediate member between the disc and the bed. This intermediate member has three lobes


22


and one edge of each lobe provides one of the ledges


21


. The other edge of each lobe provides the pusher


16


. The lobed member may comprise a separate component but it is preferred that it is an integral part of the rotor. An integral plastics moulding may be used.





FIG. 6

also illustrates how a coin is progressively dispensed from the unit.




As the lowermost coin is urged against the spring loaded finger


18


by the pusher, the fingers are gradually urged back against the action of its spring, storing energy.




Initially, the coin is not sufficiently in registration with the slot


17


to be able to pass out through the slot, but as more and more of the slot becomes visible to the coin, the coin progressively moves into the slot as shown by the dotted lines of FIG.


6


. When the point is reached where the coin is fully in registration with the slot, the energy stored by the fingers causes the coin to flip out from the apparatus, as the fingers return to their starting position.




The reader's attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.




All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.




Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.




The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.



Claims
  • 1. Coin dispensing apparatus comprising a bed, a coin holder movable relative to the bed and spaced from the bed by a gap, the coin holder having at least one coin reservoir capable of holding a stack of at least two coins with the lowermost coin in contact with the bed, ejection means for ejecting the lowermost coin from the apparatus through the gap between the bed and the coin holder, means for pushing the lowermost coin over the bed towards the ejection means with the trailing portion of the lowermost coin lying within the gap such that the trailing portion of the lowermost coin is controlled by engagement with the facing surfaces of the bed and the coin holder, and support means, spaced from the ejection means, for preventing or restricting tilting of the coin above the lowermost coin, as the lowermost coin is ejected.
  • 2. Coin dispensing apparatus as claimed in claim 1, provided with a coin pushing device on the coin holder which is appropriately spaced from the edge of the associated hole.
  • 3. Coin dispensing apparatus as claimed in claim 1, in which the coin holder comprises a rotor which is rotatably mounted on the bed, the rotor having at least one hole therethrough, which hole acts as the coin reservoir.
  • 4. Coin dispensing apparatus as claimed in claim 3, in which the support means to prevent or restrict tilting of the coin above the lowermost coin comprises a projection at the lower end of the hole.
  • 5. Coin dispensing apparatus as claimed in claim 4, in which the projection comprises a ledge positioned to support the leading edge of the coin above the lowermost coin.
  • 6. Coin dispensing apparatus as claimed in claim 3, in which the rotor comprises a disc.
  • 7. Coin dispensing apparatus as claimed in claim 6, in which the disc has a plurality of coin supporting holes therein.
  • 8. Coin dispensing apparatus as claimed in claim 7, in which a plurality of support ledges is provided, one associated with each hole, by providing an appropriately shaped member between the bed and the disc.
  • 9. Coin dispensing apparatus as claimed in claim 8, in which the appropriately shaped member has a plurality of lobes.
  • 10. Coin dispensing apparatus as claimed in claim 8, in which the appropriately shaped member is an integral part of the disc.
  • 11. Coin dispensing apparatus as claimed in claim 1, provided with at least one spring loaded finger against which a coin to be dispensed can be squeezed by the coin pushing member.
Priority Claims (1)
Number Date Country Kind
9611174 May 1996 GB
PCT Information
Filing Document Filing Date Country Kind 102e Date 371c Date
PCT/GB97/01399 WO 00 2/25/1999 2/25/1999
Publishing Document Publishing Date Country Kind
WO97/45811 12/4/1997 WO A
US Referenced Citations (2)
Number Name Date Kind
4257436 Smith Mar 1981
4798558 Bellis Jan 1989
Foreign Referenced Citations (3)
Number Date Country
43 10 411 A1 Oct 1993 DE
0 461 889 A2 Dec 1991 EP
WO 9505645 Feb 1995 WO