Abstract
A coin handling device for a coin handling machine, wherein the machine includes a coin container, a coin output arrangement, and a coin jam preventing arrangement including a coin jam preventing element and a flexible link having a free and a fixed end, wherein the coin jam preventing element is suspended in a volume of the coin container at the free end of the flexible link such that the coin jam preventing element is able to, freely, move around within a predefined volume (V) at least at the lower end of the coin container to physically interact with coins of the mass of coins present in the predefined volume (V).
Claims
1. A coin handling device for a coin handling machine comprising: a coin container configured to hold a mass of coins input thereto, wherein the coin container comprises a coin output arrangement arranged at a lower end thereof, said coin output arrangement being configured to output one or more coins of the mass of coins from the coin container; wherein the coin output arrangement comprises a rotatable disk located at a bottom of the coin container, wherein the rotatable disk includes one or more coin engaging elements defined on the rotatable disk on a coin facing surface (S) thereof, each of the one or more coin engaging elements being configured to engage an individual coin of the mass of coins to allow said individual coin to be output from the coin container; wherein the coin handling device further comprises a coin jam preventing arrangement including a coin jam preventing element and a flexible link consisting of one or more elements, said flexible link having a free and a fixed end, wherein the coin jam preventing element is suspended in a volume of the coin container at the free end of the flexible link such that the coin jam preventing element is configured to, as a result from gravity, strive to move towards a predetermined rest position, and such that the coin jam preventing element is able configured to, freely, move around within a predefined volume at least at the lower end of the coin container to physically interact with coins of the mass of coins present in the predefined volume (V).
2. The coin handling device according to claim 1, wherein each of the coin engaging elements is defined by walls surrounding a through-opening formed in the rotatable disk for allowing the individual coin to pass through the rotatable disk via the through-opening to be output from the coin container.
3. The coin handling device according to claim 1, wherein each of the coin engaging elements is defined by a recess, or a protrusion, formed on the coin facing surface (S), wherein the recess, or protrusion, is configured to engage with the individual coin to transport the same along a coin transport path for outputting the individual coin from the coin container.
4. The coin handling device according to claim 2, wherein the coin handling device is a coin dispenser configured to dispense coins of the mass of coins individually from the coin container.
5. The coin handling device according to claim 2, wherein the coin handling device is a coin feeding unit configured to feed coins of the mass of coins, one by one, to an output position (P) of the coin feeding unit at which output position (P) each coin is allowed to leave the coin feeding unit along a predefined coin path (CP).
6. The coin handling device according to claim 1, wherein the rotatable disk is inclined with respect to a horizontal plane (H) so as to define an upper coin engaging area (U) and a lower coin engaging area (L), and the coin jam preventing element is suspended at the free end of the flexible link such that the coin jam preventing element will, when residing in a rest position (R) of the flexible link, be located within the upper coin engaging area (U) and in contact with the rotatable disk.
7. The coin handling device according to claim 1, wherein the coin jam preventing element is suspended at the free end of the flexible link such that the coin jam preventing element will, when residing in a rest position (R′, R″) of the flexible link, be located distanced from the rotatable disk.
8. The coin handling device according to claim 1, wherein the flexible link is formed by one or more from: a wire, a string, a line and a chain.
9. The coin handling device according to claim 1, wherein the coin jam preventing element is made from a metallic material.
10. The coin handling device according to claim 1, wherein the coin jam preventing element has a weight exceeding a weight of each coin of the mass of coins.
11. The coin handling device according to claim 1, wherein the coin jam preventing element has a rounded shape.
12. The coin handling device according to claim 1, wherein the coin jam preventing arrangement further includes a further coin jam preventing element which is un-connected to the coin handling device such that the further coin jam preventing element is able to, freely, move around within the coin container to physically interact with the coin jam preventing element and the coins of the mass of coins present in the coin container.
13. A coin dispenser system for a coin handling machine, comprising: a plurality of coin dispensers, wherein each coin dispenser comprises: a coin container configured to hold a respective mass of coins input thereto, wherein the coin container comprises a coin output arrangement arranged at a lower end thereof, said coin output arrangement being configured to output one or more coins of the respective mass of coins from the coin container; and wherein the coin output arrangement comprises a rotatable disk located at a bottom of the coin container, wherein the rotatable disk includes one or more coin engaging elements defined on the rotatable disk on a coin facing surface thereof, each of the one or more coin engaging elements being configured to engage an individual coin of the mass of coins to allow said individual coin to be output from the coin container; wherein each coin dispenser of the plurality of coin dispensers is configured to dispense coins of the respective mass of coins individually from the coin container, and wherein the coin dispenser system comprises at least a first coin dispenser and a second coin dispenser among the plurality of coin dispensers and wherein the first and the second coin dispensers are configured to hold and output coins of a first individual denomination (D1) and a second (D2), different individual denomination, respectively, and wherein each of the first and the second coin dispensers further comprises an associated coin jam preventing arrangement each including a coin jam preventing element and a flexible link consisting of one or more elements, said flexible link having a free and a fixed end, wherein the coin jam preventing element is suspended in a volume of the associated coin container at the free end of the flexible link such that the coin jam preventing element is configured to, as a result from gravity, strive to move towards a predetermined rest position, and such that the coin jam preventing element is configured to, freely, move around within at least a portion (V) of a volume of the associated coin container to physically interact with coins of the mass of coins present in the portion (V) of the volume, and wherein the coin jam preventing arrangement of the first coin dispenser is adapted to the first individual denomination (D1) and the coin jam preventing arrangement of the second coin dispenser is adapted to the second individual denomination (D2) such that the coin jam preventing arrangement of the first coin dispenser is different from the coin jam preventing arrangement of the second coin dispenser.
14. The coin dispenser system according to claim 13, wherein the weight of the coin jam preventing element of the first and the second dispenser, respectively, is based on a weight and/or dimension of the first (D1) and second (D2) individual denomination, respectively.
15. A coin handling machine comprising: at least one coin handling device according to claim 4.
16. A coin handling machine comprising at least one coin handling device according to claim 5.
17. A coin handling machine comprising a coin dispenser system according to claim 13.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0046] The above, as well as additional objects, features and advantages of the present invention, will be better understood through the following illustrative and non-limiting detailed description of preferred embodiments of the present invention, with reference to the appended drawings. It is also to be noted, that each feature disclosed in a drawing, unless explicitly stated, can be combined or exchanged with corresponding features from other drawings.
[0047] FIG. 1a is a perspective view of a coin handling device with a coin jam preventing arrangement according to embodiments of the invention.
[0048] FIG. 1b is a side perspective view of a coin handling device with a coin jam preventing arrangement according to embodiments of the invention.
[0049] FIG. 1c is a perspective view of a coin handling device with a coin jam preventing element according to embodiments of the invention.
[0050] FIG. 2a is a perspective view of a coin handling device with a coin jam preventing arrangement according to embodiments of the invention.
[0051] FIG. 2b is a perspective view of a coin handling device with a coin jam preventing element according to embodiments of the invention.
[0052] FIG. 3a illustrates a type of coin jam that is eliminated in the present invention.
[0053] FIG. 3b illustrates a type of coin jam that is eliminated in the present invention.
[0054] FIG. 4 is a perspective view of a coin handling device with a coin jam preventing arrangement according to embodiments of the invention.
[0055] FIG. 5a shows a coin dispenser system for a coin handling machine according to embodiments of the invention.
[0056] FIG. 5b shows a coin dispenser system for a coin handling machine according to embodiments of the invention.
[0057] FIGS. 6a-d show different shapes of the coin jam preventing element according to different embodiments of the invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0058] FIG. 1a is a perspective view of a coin handling device 100 with a coin jam preventing arrangement 107. The coin handling device 100 is illustrated also in FIG. 1b in a side perspective view. The coin handling device 100 is of a kind often known as a coin dispenser 111, and is typically used in coin handling machines for holding, and selectively dispensing coins of a particular denomination within the coin handing machine. Thus, although the disclosure is not so limited, coin dispensers are typically configured to handle one denomination only.
[0059] The coin handling device 100 in FIG. 1a has a coin container 103 for holding a mass of coins. The coin dispenser 111 in FIG. 1a comprises an output arrangement 104 for outputting one or more coins from the coin container 103. The coin output arrangement 104 has a rotatable disk 105 located at the bottom of the coin container 103. The rotatable disk 105 includes one or more coin engaging elements 106. In FIG. 1a, there are four coin engaging elements 106, it is however equally plausible that there are more or less coin engaging elements, such as three or five. The coin engaging elements 106 engages individual coins such that the coins can be output from the coin container 103. The coin engaging elements 106 are located on a coin facing surface S of the rotatable disk 105.
[0060] The coin handling device 100 in FIG. 1a comprises a coin jam preventing arrangement 107 which includes a coin jam preventing element 108. The coin jam preventing element 108 has a spherical, ball-like shape in FIG. 1a, but could also have other shapes (further described herein with reference to FIGS. 6a-d). The coin jam preventing element 108 is preferably made from a metallic material, such as steel. The weight of the coin jam preventing element 108 preferably exceeds the weight of an individual coin of the mass of coins in the container 103.
[0061] The coin jam preventing arrangement 107 further comprises a flexible link 109. The flexible link 109 may consist of one single element, such as a wire. However, the flexible link 109 may alternatively consist of more than one element. The flexible link 109 has a free end 109a and a fixed end 109b. The fixed end 109b may, as shown in FIG. 1a, be fixed to an inner wall of the container 103, and the coin jam preventing element 108 is suspended at the free end 109a. When suspended at the free end 109a, the coin jam preventing element 108 can freely move around within the container 103 in a predefined volume V. The predefined volume V at least includes the lower end of the container 103. In use of the coin handling device 100, the jam preventing element 108 physically interacts with the coins present in the volume V, and thereby breaks or in other ways eliminates coin jams. The flexible link 109 may be formed by a wire, a string, a line or a chain, or a combination thereof.
[0062] The coin engaging elements 106 on the rotatable disk 105 in FIG. 1a are through-holes, i.e. they are defined by the walls surrounding a through-opening 1061. Coins are output from the coin container 103 by passing through the rotatable disk 105 via the through-openings 1061. It is equally plausible that the coin engaging elements 106 consists of recesses or protrusions (not shown).
[0063] As can be seen in FIG. 1a, the rotatable disk 105 is inclined with respect to a horizontal plane H. The upper part of the rotatable disk 105 defines an upper coin engagement area U, and the lower part defines a lower coin engaging area L. The coin jam preventing element 108 may be suspended at the free end 109a of the flexible link 109 such that the coin jam preventing element 108, when in a rest position R, is located within the upper area U and is in contact with the rotatable disk 105.
[0064] When coins are transported along the inclined rotatable disk 105, coins may come in contact with the coin jam preventing element 108 and a friction, or impact, between a surface of a coin and a surface of the coin jam preventing element 108 may force the coin to move in relation to the rotatable disk 105, while the coin jam preventing element 108 may also be moved in relation to the fixed end 109b. If there is more than one coin being arranged protruding into a through-opening 1061, the contact between the coin jam preventing element 108 and at least one of the coins in the through-opening 1061 may pull the coin out of the through-opening 1061 such that the coins may orient themselves in relation to the through-opening 1061 so as not to cause a jam therein.
[0065] FIG. 1c is a perspective view of a coin handling device 200 according to an alternative embodiment. The coin handling device 200 shares most features with the coin handling device 200, but differs in that the coin jam preventing arrangement 207 includes both a coin jam preventing element 108 suspended at a free end 108a of a flexible link 109 (same as for coin handling device 100), and a further coin jam preventing element 208a, which can move freely inside the coin container 103. The freely movable coin jam preventing element 208a can physically interact with the suspended coin jam preventing element 108 such that synergy between the two elements occur, thereby increasing the jam preventing ability.
[0066] FIG. 2a is a perspective view of a coin handling device 300 with a coin jam preventing arrangement 307. The coin handling device 300 is of an alternative kind often known as a coin feeding unit 312, and is typically used in coin handling machines for receiving a mass of coins of mixed denomination, and feed the coins one by one along a coin transport path 310 to an output position P for outputting the individual coin from the coin container 303. At the output position P, each coin may leave the coin feeding unit 312 along a predefined coin path CP. Typically, the coins are then analysed and/or sorted according to denomination. As can be seen in FIG. 2a, the coins are received in a coin container 303, often referred to as a coin hopper. The received coins are then fed, one by one, by a rotatable disk 305 by means of coin engaging elements 306 on the rotatable disk 305. The coin engaging elements 306 of the embodiment shown in FIG. 2a are defined by protrusions 3061 for engaging the coins one by one. It, however, is equally plausible that the coin engaging elements 306 could be embodied as recesses (not shown), such as openings for holding individual coins therein. The coin jam preventing element 308 in FIG. 2a is suspended at the free end 309a of a flexible link 309.
[0067] FIGS. 3a and 3b serve to illustrate two different kinds of coin jam that may be eliminated, or prevented, by the present inventive concept. FIG. 3a shows the rotatable disk 105 of the coin handling device 100 (see FIGS. 1a and 1b) with four coin engaging elements 106 defined as through-openings for receiving coins. In one of the through-openings 1061a, two coins C1 and C2 have ended up on top of each other in the through-opening 1061a with both coins C1 and C2 partly protruding into the through-opening 1061a, thus effectively jamming the system. Such coin jams can occur when two or more coins get stacked at an angle when trying to pass through the through-opening 1061a.
[0068] FIG. 3b illustrates another type of coin jam that may be eliminated, or prevented, by the present inventive concept, illustrated here also for the coin handling device 100. The coin jam illustrated in FIG. 3b is commonly referred to as bridging. Bridging occurs when multiple coins form a bridge between stationary surfaces of the coin container 103. The arrows in FIG. 3b illustrates the rotational direction of the rotatable disk 105, and the direction of movement for the coin jam preventing element 108. Although the coin jam preventing element 108 in FIG. 3b is illustrated as a ball 108 suspended at a free end 109a of the flexible link 109, it is equally plausible that it could have been a freely moving unconnected ball 108 roaming within the volume V.
[0069] FIG. 4 is a perspective view of a coin handling device 400 wherein the coin jam preventing arrangement 407 comprises two coin jam preventing elements 408′,408″. The coin handling device 400 is a coin dispenser of a different geometry than the coin handling device 100. In the coin container 403 shown in FIG. 4, angled protrusions 420 protrude from the coin container walls to define inclined surfaces, directing the mass of coins downward to the rotatable disk 405. In FIG. 4, both coin jam preventing elements 408′ and 408″ are suspended at an associated free end 409a′, 409a″ of the flexible links 409′, 409″, such that when in their respective resting position R′, R″, they are located at a distance from the inner walls of the container 403. As can be seen in FIG. 4, the respective rest positions of the two coin jam preventing elements 408′, 408″ are located in between the two angled protrusions 420. Also, the coin jam preventing elements 408′, 408″ are suspended such that they are not in direct contact with the rotatable disk 405 of the coin output arrangement 404.
[0070] FIG. 5a shows a coin dispenser system 10 for a coin handling machine 1. The coin dispenser system 10 in FIG. 5a comprises four separate coin dispensers 500a-d, each having coin output arrangements 504a-d comprising rotatable disks 505a-d. The four different coin dispensers 500a-d may contain four separate coin denominations. In the example embodiment, the coin dispensers 500a-d contain coins of an associated coin denomination D1-D4, which coin denominations are all mutually different from each other. Two of the coin dispensers, a first coin dispenser 500a and a second coin dispenser 500b, has associated coin jam preventing arrangements 507a and 507b being different from each other. From left to right: the first dispenser 500a has a ball 508a of a relatively large size, wherein the ball 508a is suspended by means of a flexible link 509a. The second dispenser 500b has a smaller sized ball 508b suspended by means of a flexible link 509b. The reason for using different coin jam preventing arrangements is that the coins of denomination D1 and D2 have different physical properties. Specifically, coins of the coin denomination D1 is larger and heavier than coins of the coin denomination D2. Also, coins of the coins of the coin denomination D1 has a non-circular edge. The different physical properties of the coins make their respective coin jamming abilities different. The third dispenser 500c has a ball 508c roaming freely in the volume V of the coin container. In the example, this has been found to be enough to prevent coin jam for coins of coin denomination D3. Finally, the fourth dispenser 500d has no coin jam preventing element. In the example, it was found that coins of denomination D4 were not prone to jamming in the coin dispenser 500d.
[0071] As understood by the person skilled in the art, different coin denominations may require different types of coin jam preventing arrangements. Also, some denominations may be less prone to coin jam. Therefore, coin jam preventing arrangements may not always be needed within a coin dispenser system disclosed herein. It serves to mention that the coin dispenser system 10 is merely an exemplary embodiment. It is equally plausible that a coin dispenser system comprises fewer or more dispensers. It is also plausible that all dispensers in a coin dispenser system have the same coin jam preventing arrangements, or that some dispensers have one type of coin jam preventing arrangement, and that the other dispensers have different or no coin jam preventing arrangements. One dispenser may contain more than one coin jam preventing element, wherein both are suspended or free, or one of each. It is also plausible that one dispenser has multiple coin jam preventing elements with varying properties, such as size, shape, weight, or density.
[0072] FIG. 5b shows another coin dispenser system 20 for a coin handling machine 2. As for the coin dispenser system 10 in FIG. 5a, the coin dispenser system 20 comprises four dispensers 600a-d arranged to hold coins of coin denominations D1′-D4′ respectively. However, the coin dispenser system 20 only has one coin dispenser, namely coin dispenser 600a, which is equipped with a coin preventing arrangement, namely coin preventing arrangement 607a. This is because coin denomination D1′ was found to be the only coin denomination which includes coins prone to coin jam. This may sometimes be common in coin handling machines, since some denominations are more prone to jamming than others. The coin jam preventing element 608a in FIG. 5b is a ball suspended by means of a flexible link 509a.
[0073] FIGS. 6a-d show different shapes of the coin jam preventing element. The shape is preferably rounded, in that it contains no flat, or sharp edges so as not provide a surface which may form a basis for coins being stacked thereon. Different shapes can have different efficiencies for different coin denominations and/or different coin container geometries.
[0074] FIG. 6a illustrates the coin jam preventing element 108 from FIGS. 1a and 1b. The coin jam preventing element 108 is spherically shaped. An alternative embodiment is illustrated in FIG. 6b, showing the coin jam preventing element 708. The coin jam preventing element 708 has a drop-formed shape. A yet alternative embodiment is illustrated in FIG. 6c, showing the coin jam preventing element 808. The coin jam preventing element 808 has a prolate shape. A yet alternative embodiment is illustrated in FIG. 6d, showing the coin jam preventing element 908. The coin jam preventing element 908 has an oblate shape.
[0075] It is contemplated that there are numerous modifications of the embodiments described herein, which are still within the scope of the invention as defined by the appended claims.
