The invention relates to coin dispensers, and in particular to coin dispensers of the type for dispensing change. Such coin change dispensers are found, for example, at cashier checkout locations and ticket booths and many other places.
Perhaps the best known type of coin change dispenser has an in-line configuration in which a plurality of generally upright coin holding tubes are aligned in a row. Examples of such coin change dispensers are shown, for example, in Walton, U.S. Pat. No. 3,590,833 and Duplessy, U.S. Pat. No. 4,593,709.
Such dispensers are assembled from numerous small, mechanical parts requiring many machining operations during manufacture, especially the parts of the coin ejector mechanisms. A coin dispenser having nine coin tubes would typically provide nine coin ejector mechanisms and each of these would include many small parts.
An additional problem in the art is the need to replenish the dispenser during the work shift. This requires reloading coinage and performing cash settlement operations in a back room to account for the coinage being dispensed and the coinage being received at a cash register.
Several patent documents have disclosed machines to receive, sort and dispense coins. In a published European patent application EP 0 137 637 published Apr. 17, 1985, coins are sorted into four tubes, from which coins may be dispensed. Generally, this is a large apparatus, resembling the in-line coin dispensers described above, and further having a ramp of complex design and many additional mechanical parts. Four tubes are disclosed for sorting and dispensing of more than four denominations. To handle additional denominations, more coin tubes and still more internal parts would have to be included.
On the other hand, there are some lightweight devices which combine sorting and dispensing as disclosed in U.S. Pat. No. 5,106,337 and U.S. Des. Pat. No. 324,600. It appears that these devices would not handle the full coin set of any country without being enlarged. It is not clear that they would work well with a larger number of coin tubes or withstand heavy commercial use.
There is a need for a coin recycling dispenser that would receive, sort and dispense coins for a full coin set in busy cash handling locations. For global marketability, such a machine should be adaptable to the coin sets of many countries. Such a unit should have a relatively simple construction, and provide a lower manufacturing cost, and also be relatively compact in size.
The invention provides a coin recycling machine and method for receiving, sorting and dispensing coins for a plurality of denominations.
The coin recycling comprises a coin dispenser having a rotatable coin magazine for holding respective denominations of coins and having an electronic control that is operable in response to a commanded total to control position of the coin magazine to selectively dispense coins to provide the commanded total. A queuing device is provided for receiving the coins and arranging the coins in a single file. The queuing device has an exit directed towards the coin magazine and associated sensors are provided for identifying a denomination of a next coin to pass through the exit. The electronic control is responsive to the sensors associated with the queuing device for positioning the coin magazine such that coins are sorted into the coin magazine by denomination as the coins exit the queuing device. From there, the coins are dispensed from the coin magazine in a dispensing operation.
A general object of the invention is to provide a compact machine for recycling coins received from customers, so that they can be dispensed as change. This reduces the amount of time that cashiers or other employees need to perform cash settlement transactions in a back room, where new coins are received and monies are accounted for. As in other recycling operations, maximum efficiency is realized by better utilizing the cash resources available.
Another object of the invention is to provide a sorting device which can be assembled with an electronic rotary coin dispenser. In this combination, coins are sorted into a coin magazine from which they are also dispensed.
Another object of the invention is provide a minimum number of parts, thereby reducing costs when the dispenser is manufactured in significant volume.
One advantage of the invention is that it is easily adaptable to different national coin sets and to different change capacities, such as
0.99 and
4.99. One coin recycling machine could be used with different magazines, including magazines with coins from different countries. The machine is operable with different magazines through programmable electronic control.
The coin recycling dispenser of the invention can be used in many applications. For example, the coin dispenser can be used to dispense change at the checkout counter of a grocery store or a convenience store, or at the cashier of a restaurant. The coin dispenser can be provided as part of a system that provides change in exchange for paper currency, or it can be provided in tandem with a currency dispenser, for example, as part of an ATM. It also could be part of a point-of-sale terminal.
Other objects and advantages of the invention, besides those discussed above, will be apparent to those of ordinary skill in the art from the description of the preferred embodiments which follow. In the description, reference is made to the accompanying drawings, which form a part hereof, and which illustrate examples of the invention.
a and 8b are flow charts of the operation of the coin recycling machine of
A preferred embodiment of a coin recycling machine 10 according to the present invention is illustrated in
As seen in
0.99 change for one U.S. dollar.
The coin magazine 23 is mounted on a base 12 for rotation in a counterclockwise direction. As it rotates to move the coins along a circular coin path, a single coin ejector 80 is repeatedly operated to eject coins from the bottom of the coin channels 24 into the coin dispensing channel 14 and then into a cup 13.
For details of the assembly of the coin magazine 23 to a base member 60, and the operation of the coin magazine 23 and coin ejector 80 to dispense coins from the coin magazine 23 in response to a commanded total, reference is made to Adams et al., U.S. patent application Ser. No. 09/994,415, filed Nov. 27, 2001, and entitled “Electronically-Controlled Rotary Coin Change Dispenser,” the specification of which is hereby incorporated by reference.
As seen in
The coin magazine 23 is formed with channels having a taper of not greater than 0.2 degrees, having a plurality of circumferentially spaced, zero taper ribs 24f (
On the bottom of the base member 60 are markers (not seen) corresponding to the respective channels 24. These markers are of slightly differing length according to the diameter of their corresponding channel 24. The markers are displaced by an angle in advance of their corresponding channels 24 so as to be sensed by the position sensors 45, 46 (represented schematically in
The base member 60 also includes square posts 64 (
The magazine base member 60 forms partial floors 61 for each channel 24 which are separated by barrier projections 62. When assembled with the magazine 23 (
The magazine 23 also forms the upright slots 24c that are located a short distance above the floors 24d in the bottom of each channel 24. These slots 24c receive the posts 64 of the base member 60, but have an open portion above that which forms a window 24e (
The ejector 80 is a single mechanism located at a single location along the circular coin path. The actuation of a solenoid (not shown) will cause a pin 81 to move vertically upward through slot 63 (
The exit member 54 has an exit aperture 66 at about 9 o'clock as seen in
The feed drive motor 33 (
It can be further seen that the queuing device 52 moves the coins along a path disposed above the coin magazine 23 and disposed substantially parallel to a supporting surface for the coin recycling machine 10. The coins are moved along a path substantially perpendicular to the axis of rotation for the coin magazine 23.
A power supply 104 (
The main processor board 100 connects to the ejector solenoid 80, to the magazine drive motor 32, to a “channel sync” position sensor 45 for synchronizing the position of a selected channel to the coin ejector 80, a “low coin sync” position sensor 46 for synchronizing the position of a selected channel to the home position/low coin sensor 51, which is also connected to the main processor board 100, and to the coin exit sensor 48.
Whenever AC input power is applied to the 12-volt DC power supply 104 or whenever the cover 11 is closed to lock the cover interlock switch 106, twelve DC volts are supplied to the main processor board 100. As a result the main processor executes an initialization routine to rotate the magazine 23 to the home position, stopping after a predetermined delay following detection of the home position and loading memory locations on the main processor board 100 with values representing magazine coin channels 24 with full stacks of coins. The delay is determined so as to ensure that the magazine 23 stops in a position that will allow it to be accelerated to the operational speed just prior to reaching the “home” position during an actual dispense cycle. This position is defined as the “pre-accelerate” position.
Also seen in
As seen in
Assuming that a dispense request (a commanded total) is received, as represented by the “YES” result, then the processor will test for sufficient coin levels to provide the total amount of coin requested as represented by decision block 82. If the coin level is suitable, as represented by the “YES” result, then the processor will process the dispense request by operating the dispenser as described in U.S. patent application Ser. No. 09/994,415, cited above, as represented by process block 83. If the coin level is insufficient, as represented by the “NO” result from decision block 82, then the processor will cause a prompt to be displayed to the user to feed sufficient coins of a denomination “X” into the hopper 15 seen in
After the coin magazine is positioned to accept a coin of denomination “X,” the feed motor 33 driving the rotating disc 55 is energized to jog (move in an increment) the coin 16 around the coin track 57 until it is sensed by the size sensor 65, as represented by process block 90.
If the coin is sensed as not being a coin of denomination “X,” but of denomination “Y,” in decision block 91, the coin feed operation is halted as represented by process block 92 and the identity of the coin being processed is changed to denomination “Y,” as represented by decision block 93. The routine then returns to connection point “B” in
If the coin is sensed as being a coin of denomination “X,” in decision block 91, there is a further test to see if it has dropped through the coin exit aperture 66 within a timeout period, as represented by decision block 94. If the coin was sensed by coin size sensor 65, but is not sensed at the coin exit aperture 66 by a coin transfer sensor 72, as represented by the “NO” result from decision block 94, there has been a misfeed or some other error. In that event, an error message is displayed on the display of the control for the machine 10, as represented by output block 97.
Assuming that the coin is sensed by the coin transfer sensor 72 within the timeout period as represented by the “NO” result from decision block 94, then a test is made to see if a maximum limit for a denomination “X” has been reached. In the event that the maximum limit has not been reached, the routine will loop back to look at the next coin to see if it is of denomination “X.” If a limit has been reached, the coin feeding is halted, and the routine returns to the “A” connection point in
From this description it can be seen how the coin magazine 23 is first positioned to accept coins of a particular denomination, and then the queuing device is jogged and each coin sensed to verify that is of the denomination for which the coin magazine 23 has been positioned. This arrangement makes a ramp unnecessary in the preferred embodiment, thereby saving cost and complexity, however, a ramp could be added in other embodiments without departing from the full scope of the invention.
The mix of coins contained in the magazine 23 is such that one complete dispensing rotation can provide up to 99 cents (or $4.99) in change. According to one preferred embodiment, the magazine assembly 22 is rotated at 30 RPM. If the change is dispensed in one revolution, this occurs in a time period of two seconds. Where necessary, the magazine 23 can be rotated through a second revolution to complete the dispensing of the requested amount of change. The magazine does not need to stop in order to complete a dispense cycle. If coins from multiple channels 24 in more than once revolution must be ejected to complete the payment of change, the motor 31 can be driven until payment is made and then index to the pre-accelerate position once again.
The dispenser 20 can be used with a variety of different magazines 23 containing different mixes of coins. For example, one magazine 23 could have coin channels with different sizes (diameters) to hold a mix of coins (pennies, nickels, dimes, quarters, dollar coins), while another magazine 23 could have coin channels with equal sizes (e.g., all holding quarters or tokens, which would be useful at an arcade).
Preferably, the low coin sensor 51 is located at an appropriate height such that it will no longer sense coins in a coin channel 24 when there are a small number (e.g., 3-6) of coins remaining in the channel 24. The machine 10 can then avoid selecting channels 24 having a low supply (for example, if one quarter channel is low, a different quarter channel is selected, or two dime channels and one nickel channel are selected). The dispenser also preferably provides an audible or visual alarm indicating that the magazine 23 should be replaced. Since the magazine 23 moves the channels 24 past the low-coin station 50, it is only necessary to provide a single low coin sensor. However, as an additional feature, it is also possible to provide a second low coin detector located approximately halfway up the height of the magazine 23 in order to provide a signal indicating that a receptacle is about half-empty. If the magazine 23 is made from an opaque material, the magazine 23 will include the slots 24c in the channels 24 so that the low coin detector can sense the coins. However, if the magazine 23 is made from a transparent plastic material, for example, it is not necessary to include slots 24c in the channels 24.
Another advantage of the disclosed construction is that it is easily adaptable to different coin mixes (i.e., to different magazines 23 having different numbers and sizes of slots). One coin dispenser 20 could be used with different magazines 23, including magazines with coins from different countries, simply by programming the coin dispenser 20 with data indicating the different types of coin mixes (including data on the coin denomination and the number of coins dispensed with one actuation of the coin ejector 80—usually one or two coins at a time) contained in the different magazines.
This has been a description of preferred embodiments of the invention. Those of ordinary skill in the art will recognize that modifications might be made while still coming within the scope and spirit of the present invention.
For example, although optical sensors are disclosed for the preferred embodiment, sonic sensors or proximity sensors might be substituted without departing from the scope of the broadest aspects of the invention. As another example, while the coin path is preferably circular, looped coin paths of non-circular shape might also be used.
And while tabs are used as the markers for position sensing of the magazine assembly, other types of markers can be used. Therefore, for the scope of the invention, reference is made to the following claims.
The benefit of priority is claimed for this application based on U.S. Provisional Appl. No. 60/407,437, filed Aug. 29, 2002.
Number | Name | Date | Kind |
---|---|---|---|
3590833 | Walton | Jul 1971 | A |
5295899 | Adams et al. | Mar 1994 | A |
5429222 | Delay | Jul 1995 | A |
5492212 | Fillod et al. | Feb 1996 | A |
6540602 | Adams et al. | Apr 2003 | B2 |
6685551 | Adams et al. | Feb 2004 | B2 |
6712688 | McGinty et al. | Mar 2004 | B2 |
Number | Date | Country | |
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20040040820 A1 | Mar 2004 | US |
Number | Date | Country | |
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60407437 | Aug 2002 | US |