Coin channel and gaming machine

Abstract

The coin channel (2) for a coin-operated device (1), such as a gaming machine, vending machine or the like, has an inlet end (2A) for receiving coins (10) into the coin channel (2) and an outlet end (2B) for discharging the coins (10) from the coin channel (2) The coin channel (2) is formed as a twisted channel configured to rotate the coins (10) about a longitudinal axis of the coin channel (2) as the coins (10) move in the coin channel (2) from the inlet end (2A) towards the outlet end (2B).

Description

[0001] Coin channel and gaming machine

[0002] Technical field of the invention

[0003] The present invention concerns a coin channel for a coin-operated device, as defined in claim 1 . The invention also concerns a gaming machine comprising such a coin channel.

[0004] Background of the invention

[0005] Coins and tokens are used for paying in various devices, such as gaming machines and vending machines. A typical vending machine or gaming machine comprises a coin feeding opening, through which a user can insert coins into the machine. The coin feeding opening is connected to a coin channel, where the coins are conveyed by gravity to a coin detection device, which identifies the coins fed into the machine. The coin feeding opening and the coin channel need to be typically configured so that coins of various dimensions can be received and conveyed to the coin detection device. For instance, the thicknesses of euro coins vary from 1 .67 mm to 2.38 mm and the diameters vary from 16.25 to 25.75 mm. Even in cases where a certain machine does not accept all kinds of coins of a certain currency, the largest accepted coins can often be 10 to 30 percent greater than the smallest accepted coins in thickness and / or diameter. Furthermore, even if the machine accepts only certain kinds of coins, it is likely that the users still try to insert into the machine all kinds of coins and even other objects.

[0006] Insertion of too large coins and other objects can be prevented by the dimensioning of the coin feeding opening. However, even coins that are within the allowed dimension ranges may cause problems. A typical situation causing problems is encountered when the coin detection device cannot receive the coins at the pace they are fed into the coin channel and the coins are piled up in the coin channel. When the coins pile up in the coin channel, there is a risk that the coins get jammed. The risk is increased if consecutive coins are of different sizes.

[0007] Another example of a situation causing a jamming risk is inserting coins of various sizes into the machine at a quick pace, in which case a coin may catch up with the previous coin. The risk is increased if the coin channel is not vertical. As the inner dimensions of the coin channel need to be greater than the dimensions of the coins, a coin may wedge another coin against an inner wall of the coin channel.

[0008] If coins get jammed in the coin channel, a maintenance worker is needed to remove the jammed coins from the machine. The machine may thus be out of use for a long period of time, or at least the users need to use alternative payment methods.

[0009] Summary of the invention

[0010] An object of the present invention is to provide an improved coin channel for a coin-operated device, such as a gaming machine, vending machine or the like. Another object of the invention is to provide an improved gaming machine.

[0011] The coin channel according to the invention has an inlet end for receiving coins into the coin channel and an outlet end for discharging the coins from the coin channel, wherein the coin channel is formed as a twisted channel configured to rotate the coins about a longitudinal axis of the coin channel as the coins move in the coin channel from the inlet end towards the outlet end, wherein the cross-sectional profile of the coin channel in a plane that is perpendicular to the longitudinal direction of the coin channel comprises a middle portion, a first outer portion and a second outer portion, the inner width of the coin channel increasing from the middle portion towards the outer portions, and the outer edges of the outer portions being curved so as to guide the rotating movement of the coins moving in the coin channel.

[0012] The gaming machine according to the invention comprises a coin channel defined above.

[0013] The coin channel according to the invention reduces the risk of jamming of the coins in the coin channel. In the coin channel according to the invention, coins fed consecutively into the coin channel are not parallel to each other but in an angle relative to the each other. This reduces significantly the risk that a coin wedges another coin between itself and the wall of the coin channel. The curved outer edges of the coin channel force even smaller coins that do not extend over the whole coin channel to turn and help keeping the contact point between two consecutive coins close to the longitudinal center axis of the coin channel. When the contact point remains close to the narrow middle portion, the jamming risk is minimized. According to an embodiment of the invention, the inner width of the coin channel increases in a curved manner from the middle portion towards the outer portions. With curved walls of the coin channel, the width of the coin channel can be kept as small as possible. This effectively prevents wedging of smaller coins.

[0014] According to an embodiment of the invention, the contour of the coin channel substantially follows a curve that is formed by the edges of a coin having the largest diameter of the coins for which the coin channel is designed and being moved forward in the longitudinal direction of the coin channel such that the rotational angle of the coin about the longitudinal axis of the coin channel changes linearly as a function of the movement in the longitudinal direction.

[0015] The required minimum dimensions of the coin channel are determined by the largest coins. For instance, if the coin channel is designed for euro coins including the €2 coin and the 50c coin, the €2 coin has the greatest diameter and the 50c coin has the greatest thickness. The narrowest diameter of the middle portion of the coin channel must be greater than the thickness of the 50c coin with a certain tolerance. By forming the coin channel such that the contour of the coin channel substantially follows a curve that is formed by the edges of the €2 coin when the €2 coin is moved linearly and simultaneously rotated a certain amount per certain moved distance, the inner dimensions of the coin channel are minimized. This minimizes the risk that consecutively inserted smaller coins, such as 5c coins or 1 c and 2c coins are jammed. In practice, certain tolerances must be added to the minimum dimensions.

[0016] According to an embodiment of the invention, the coin channel is configured such that a coin moving in the coin channel is rotated about the longitudinal axis of the coin channel 0.5 to 1.5 degrees per each 1.0 millimeter the coin moves in the longitudinal direction of the coin channel. By having the twisting angle of the coin channel in this range, jamming of the coins is effectively prevented, while ensuring that the coins move in the coin channel smoothly by gravity.

[0017] According to an embodiment of the invention, the smallest inner width of the middle portion in a plane that is perpendicular to the longitudinal direction of the coin channel is 5-20 percent greater than the thickness of the thickest coins that the coin channel is configured for. According to an embodiment of the invention, the inner diameter of the coin channel in said plane in the direction from the first outer portion towards the second outer portion is 5-20 greater than the diameter of the largest coins that the coin channel is configured for. Sufficiently loose tolerances are needed to ensure smooth operation of the coin channel, but if the coin channel has too large dimensions, smaller coins may cause clogging of the coin channel.

[0018] According to an embodiment of the invention, the coin channel is formed of two or more coin channel modules that are attached to each other one after another. By assembling the coin channel using coin channel modules, the same modules can be used in different devices. Also, shorter coin channel modules makes manufacturing of the coin channel simpler.

[0019] According to an embodiment of the invention, each coin channel module comprises snap-fit connectors for attaching the coin channel module to another coin channel module. The use of snap-fit connectors allow quick assembly of the coin channel.

[0020] According to an embodiment of the invention, the length of the coin channel modules is selected so that the coin channel turns in a single coin channel module at most 40 degrees. When the turning angle of a single coin channel module is sufficiently small, the coin channel modules can be manufactured more easily for example using injection molding.

[0021] Brief description of the drawings

[0022] Embodiments of the invention are described below in more detail with reference to the accompanying drawings, in which

[0023] Fig. 1 shows a perspective front view of a part of a gaming machine according to a first embodiment of the invention,

[0024] Fig. 2 shows a perspective rear view of the gaming machine of figure 1 ,

[0025] Fig. 3 shows a perspective front view of a part of a gaming machine according to a second embodiment of the invention,

[0026] Fig. 4 shows a perspective rear view of the gaming machine of figure 3, Fig. 5 shows a perspective front view of a part of a gaming machine according to a third embodiment of the invention,

[0027] Fig. 6 shows a perspective rear view of the gaming machine of figure 5,

[0028] Fig. 7 shows a side view of a coin channel module according to a first embodiment of the invention,

[0029] Fig. 8 shows a side view of two consecutive coins,

[0030] Fig. 9 shows a top view of two consecutive coins,

[0031] Figs. 10-13 show different cross-sectional views of the coin channel module of figure 7,

[0032] Fig. 14 shows a top view of the coin channel module of figure 7,

[0033] Fig. 15 shows another side view of the coin channel module of figure 7,

[0034] Fig. 16 shows a bottom view of the coin channel module of figure 7,

[0035] Fig. 17 shows a cross-sectional view of the coin channel module of figure 16 taken along line E-E,

[0036] Figs. 18-20 show different views of a coin channel according to an embodiment of the invention,

[0037] Figs. 21-23 show different views of a coin channel according to another embodiment of the invention, and

[0038] Fig. 24 shows a cross-sectional view of a coin channel with two consecutive coins.

[0039] Detailed description of embodiments of the invention

[0040] The present invention concerns a coin channel 2 for a coin-operated device. The coin channel 2 is described below in connection with a gaming machine 1. However, the coin channel 2 according to the invention is also suitable for other coin-operated devices. Such a device could be, for instance, a washing machine, laundry dryer, shower, public toilet or vending machine. A coin-operated vending machine could be used, for instance, for selling tickets, food, beverages or small items. The expression “coin-operated device” refers here to a device that can be operated by using coins. The invention is also suitable for devices that are operable using tokens of various sizes. The coin-operated device could additionally be operable using one or more alternative payment methods, and the device does thus not need to be operable solely by coins or tokens of various sizes.

[0041] Figures 1 and 2 show a part of a gaming machine 1 according to a first embodiment of the invention. Only part of the front of the gaming machine 1 is shown and many parts of the gaming machine 1 have been omitted to show mainly features relevant for the present invention. In the embodiment of figures 1 and 2, the gaming machine 1 comprises a display 11 that can be used for playing the games provided in the gaming machine 1 . The front of the gaming machine 1 is further provided with a coin feeding opening 12, through which the player can insert coins or tokens into the gaming machine. In the embodiment of figures 1 and 2, the display 11 is arranged at an angle deviating 20 degrees from the vertical direction. The coin feeding opening 12 is arranged in a front panel that is parallel to the plane of the display 11. The coin feeding opening 12 is arranged above the display 11 .

[0042] The gaming machine 1 is provided with a coin detection device 5 that is configured to identify the coins or tokens inserted into the gaming machine 1 . The coin detection device 5 can comprise for example optical means for detecting the type and the number of the coins inserted into the gaming machine 1 . The coin feeding opening 12 is connected to the coin detection device 5 by means of a coin channel 2. In the coin channel 2, the coins inserted into the gaming machine 1 are conveyed to the coin detection device 5 by gravity. In the embodiment of figures 1 and 2, the coin channel 2 is vertical. The coin channel 2 has an inlet end 2A for receiving the coins into the coin channel 2 and an outlet end 2B for discharging the coins from the coin channel 2. In the embodiment of figures 1 and 2, the outlet end of the coin channel 2 is connected directly to the coin detection device 5. In the embodiment of figures 1 and 2, the coin channel 2 is connected to the coin feeding opening 12 by means of a bend 13. The bend 13 forms a 70 degree angle.

[0043] In the embodiment of figures 1 and 2, the coin channel 2 is formed by three coin channel modules 3 arranged one after another. The coin channel 2 according to the invention is formed as a twisted channel that is configured to rotate the coins inserted into the coin channel 2 about a longitudinal axis of the coin channel 2 as the coins move in the coin channel 2 from the inlet end 2A towards the outlet end 2B. The term “longitudinal axis” refers to the direction from the inlet end 2A of the coin channel 2 towards the outlet end 2B.

[0044] Figures 7 and 10-17 show different views of a single coin channel module 3 used for forming the coin channel 2 of figures 1 and 2 and two coins 10 inserted into the coin channel 2. Figures 8 and 9 show the positions of the coins 10 without the coin channel 2.

[0045] The coin channel 2 is shaped so that the middle plane of the coin 10 remains substantially aligned with the longitudinal axis of the coin channel 2 as the coin 10 moves forward in the coin channel 2. Simultaneously, the internal shape of the coin channel 2 forces the coin 10 to turn about the longitudinal axis of the coin channel 2. Therefore, a coin 10 that has moved a certain distance from the inlet end 2A of the coin channel 2 is at a different angle relative to the inlet opening of the coin channel 2 than a coin 10 that is being inserted into the coin channel 2. The coins 10 fed consecutively into the coin channel 2 thus contact each other in an angle differing from zero degrees, as shown in figures 8 and 9. This effectively reduces the risk that an upper coin 10 is wedged between a lower coin 10 and an inner wall of the coin channel 2. The risk of clogging of the coin channel 2 is thus reduced in particular in situations where coins 10 are inserted into the gaming machine 1 at a quicker pace than the coin detection device 5 can handle.

[0046] In the embodiment of figures 1 and 2, the coin channel 2 is configured so that a coin 10 moving in the coin channel 2 is rotated about the longitudinal axis of the coin channel 2 1.0 degrees per each millimeter the coin 10 moves in the longitudinal direction of the coin channel 2. However, the coin channel 2 can also be configured differently. Figures 18-20 show an embodiment, where the coin channel 2 is configured so that a coin 10 moving in the coin channel 2 is rotated about the longitudinal axis of the coin channel 2 0.5 degrees per each millimeter the coin 10 moves in the longitudinal direction of the coin channel 2. Figures 21-23 show an embodiment, where the coin channel 2 is configured so that a coin 10 moving in the coin channel 2 is rotated about the longitudinal axis of the coin channel 2 1 .5 degrees per each millimeter the coin 10 moves in the longitudinal direction of the coin channel 2. If the ratio between the twisting angle and the length of the coin channel 2 is increased, the angle between two consecutive coins 10 is greater, which reduces the risk of jamming of the coins 10. On the other hand, the moving speed of the coins 10 is reduced. This may limit the maximum inclination angle of the coin channel 2.

[0047] The cross-sectional profile of the coin channel 2 in a plane that is perpendicular to the longitudinal direction of the coin channel 2 can be best seen in figures 10-14 and 16. The cross-sectional profile of the coin channel 2 comprises a middle portion 4A, a first outer portion 4B and a second outer portion 4C, the width of the coin channel 2 increasing from the middle portion 4A towards the outer portions 4B, 4C.

[0048] The outer edges of the outer portions 4B, 4C are curved so as to guide the rotating movement of the coins 10 moving in the coin channel 2. The inner width of the coin channel 2 increases in a curved manner from the middle portion 4A towards the outer portions 4B, 4C. The curved outer edges of the coin channel 2 force even smaller coins 10 that do not extend over the whole coin channel 2 to turn and help keeping the contact point between two consecutive coins 10 close to the longitudinal center axis of the coin channel. When the contact point remains close to the narrow middle portion, the jamming risk is minimized.

[0049] The dimensions of the coin channel 2 depend on the dimensions of the coins 10 for which the coin channel 2 is configured. The smallest inner width of the middle portion 4A in the plane perpendicular to the longitudinal direction of the coin channel 2 can be dimensioned to be 5-20 percent greater than the thickness of the thickest coins 10 that the coin channel 2 is configured for. The inner diameter of the coin channel 2 in said plane in the direction from the first outer portion 4B towards the second outer portion 4C can be dimensioned to be 5- 20 percent greater than the diameter of the largest coins 10 that the coin channel 2 is configured for.

[0050] The largest euro coin measured in diameter is the €2 coin having a diameter of 25.75 mm. The thickest euro coin is the 50c coin having a thickness of 2.38 mm. If the coin channel 2 is configured for euro coins, including at least the €2 and 50c coins, the smallest inner width of the coin channel 2 could thus be in the range of 2.50-2.86 mm. The inner diameter of the coin channel 2 could be in the range of 27.04-30.90 mm.

[0051] In the embodiments of the figures, the contour of the coin channel 2 substantially follows a curve that is formed by the edges of a coin 10 having the largest diameter of the coins 10 for which the coin channel 2 is designed and being moved forward in the longitudinal direction of the coin channel 2 such that the rotational angle of the coin 10 about the longitudinal axis of the coin channel 2 changes linearly as a function of the movement in the longitudinal direction.

[0052] In case of euro coins, the contour of the coin channel 2 thus substantially follows a curve that is formed by the edges of a €2 coin that is moved forward in the longitudinal direction of the coin channel 2 such that the rotational angle of the coin 10 about the longitudinal axis of the coin channel 2 changes linearly as a function of the movement in the longitudinal direction. In the embodiment of figures 7-17, the contour of the coin channel 2 follows a curve formed by the edges of a €2 coin that is rotated 1 .0 degrees per each 1 .0 mm the coin 10 is moved. In the embodiment of figures 18-20, the coin 10 is rotated 0.5 degrees per each 1.0 mm the coin 10 is moved, and in the embodiment of figures 21- 23, the coin 10 is rotated 1.5 degrees per each 1.0 mm the coin 10 is moved. The inner diameter of the coin channel 2 in a plane that is perpendicular to the longitudinal direction of the coin channel 2 in the direction from the first outer portion 4B towards the second outer portion 4C is made slightly greater than the diameter of the €2 coin, for example 5-20 percent greater. The smallest inner width of the middle portion 4A in said plane is made slightly greater than the thickness of the 50c coin, for example 5-20 percent greater.

[0053] By dimensioning the coin channel 2 based on the size of the largest coins as described above, the inner dimensions of the coin channel 2 are minimized. Larger coins thus follow a predetermined path within certain tolerances. Two consecutive coins therefore have a constant mutual angle. Smaller coins have more room to move in the coin channel 2, but even with smaller coins the contact point between two consecutive coins remains close to the longitudinal center axis of the coin channel 2, thus minimizing the jamming risk.

[0054] Figure 24 shows a cross-sectional view of a coin channel 2 with a 20c coin and a 10c coin seen from above. The coin channel 2 of figure 24 is dimensioned for all euro coins. The diameter of the coin channel 2 is thus dimensioned for €2 coins and the width of the narrowest portion is dimensioned for 50c coins. The 20c is the lower coin and the 10c coin is the upper coin. Both coins are positioned to the right from the center axis of the coin channel 2. The coin channel 2 is cut from such a height that only a small portion of the upper coin 10 is visible. Although the coins are much smaller than the inner dimensions of the coin channel 2, due to the shape of the coin channel 2, the contact point between the coins 10 is close to the center axis of the coin channel 2. Because the contact point is close to the narrowest part of the coin channel 2, the coins cannot wedge each other, and jamming of the coins is prevented.

[0055] In the embodiment of figures 1 and 2, the length of each coin channel module 3 is 30 mm. The coin channel 2 thus turns 30 degrees in each coin channel module 3. By assembling the coin channel 2 of three coin channel modules 3, the coins 10 are turned in the coin channel 2 90 degrees. By selecting a suitable number of coin channel modules 3, the coins 10 can be fed into the coin detection device 5 or other device arranged at the outlet end 2B of the coin channel 2 in a suitable angle.

[0056] For attaching the coin channel modules 3 to each other, the coin channel modules 3 can be provided with snap-fit connectors. In the coin channel module 3 of figures 7 and 10-17, one end of the coin channel module 3 is provided with snap-fit connectors 6 protruding in the longitudinal direction of the coin channel module 3. The other end of the coin channel module 3 is provided with holes 7 configured to cooperate with the protruding snap-fit connectors 6. Two coin channel modules 3 can thus be connected to each other by inserting the protruding snap-fit connectors 6 of one of the coin channel modules 3 into the respective holes 7 of the other coin channel module 3. In the embodiment of figures 7 and 10-17, each end of the coin channel module 3 is provided with a flange 14, 15, to which the snap-fit connectors 6, 7 are arranged. A first flange 14 is provided with two protruding snap-fit connectors 6 and a second flange 15 is provided with two holes 7.

[0057] In the embodiment of figures 3 and 4, the gaming machine 1 and the coin channel 2 are similar to the gaming machine 1 and coin channel 2 of figures 1 and 2. However, the display 11 is not parallel to the plane in which the coin feeding opening 12 is arranged, but the coin feeding opening 12 is arranged in a vertical plane. The coin channel 2 is connected to the coin feeding opening 12 with a similar bend 13 as in the embodiment of figures 1 and 2. The coin channel 2 is thus not vertical but extends in a direction that is inclined 20 degrees relative to the vertical direction. The coin channel 2 is assembled of six coin channel modules 3, and the coins 10 are thus rotated 180 degrees in the coin channel 2.

[0058] In the embodiment of figures 5 and 6, the display 11 and the coin feeding opening 12 are arranged similarly as in the embodiment of figures 3 and 4. However, the bend 13 connecting the coin feeding opening 12 to the coin channel 2 forms a 90 degree angle, and the coin channel 2 is thus vertical.

[0059] The coin channel modules 3 of figures 18-20 differ from the coin channel modules 3 of figures 7 and 10-17 in respect of the ratio between the turning angle and the longitudinal advance of the coin channel 2. In the embodiment of figures 18-20, the coin channel 2 turns 0.5 degrees per each millimeter in the longitudinal direction of the coin channel 2. In addition, the snap-fit connectors are different. In the embodiment of figures 18-20, the coin channel modules 3 are not provided with flanges. One end of each coin channel module 3 is provided with snap-fit connectors 8 protruding in the longitudinal direction of the coin channel module 3. The other end of the coin channel module 3 is provided with snap-fit connectors 9 that are arranged on sides of the coin channel module 3 and configured to cooperate with the protruding snap-fit connectors 8.

[0060] In the embodiment of figures 21-23, the coin channel modules 3 are provided with similar snap-fit connectors 8, 9 as the coin channel modules 3 of figures 18-20. In the embodiment of figures 21-23, the coin channel 2 turns 1.5 degrees per each millimeter in the longitudinal direction of the coin channel 2.

[0061] According to an embodiment of the invention, the length of the coin channel modules 3 is selected so that the coin channel 2 turns in a single coin channel module 3 at most 40 degrees. The length of the coin channel module 3 can thus depend on the ratio between the turning angle and the longitudinal advance of the coin channel 2. If the ratio is small, the coin channel modules 3 can be longer. When the length of the coin channel modules 3 is sufficiently short, the coin channel modules 3 can be manufactured in a more simple way, for example using injection molding.

[0062] Although a coin channel 2 comprising a plurality of coin channel modules 3 has been described above, the coin channel 2 could be formed by a single module. By means of 3D-printing, even longer coin channels 2 could be manufactured as one-piece parts.

Claims

Claims:1 . A coin channel (2) for a coin-operated device (1 ), such as a gaming machine, vending machine or the like, the coin channel (2) having an inlet end (2A) for receiving coins (10) into the coin channel (2) and an outlet end (2B) for discharging the coins (10) from the coin channel (2), wherein the coin channel (2) is formed as a twisted channel configured to rotate the coins (10) about a longitudinal axis of the coin channel (2) as the coins (10) move in the coin channel (2) from the inlet end (2A) towards the outlet end (2B), wherein the cross-sectional profile of the coin channel (2) in a plane that is perpendicular to the longitudinal direction of the coin channel (2) comprises a middle portion (4A), a first outer portion (4B) and a second outer portion (4C), the inner width of the coin channel (2) increasing from the middle portion (4A) towards the outer portions (4B, 4C), and the outer edges of the outer portions (4B, 4C) being curved so as to guide the rotating movement of the coins (10) moving in the coin channel (2).

2. The coin channel (2) according to claim 1 , wherein the inner width of the coin channel (2) increases in a curved manner from the middle portion (4A) towards the outer portions (4B, 4C).

3. The coin channel (2) according to claim 1 or 2, wherein the contour of the coin channel (2) substantially follows a curve that is formed by the edges of a coin (10) having the largest diameter of the coins (10) for which the coin channel (2) is designed and being moved forward in the longitudinal direction of the coin channel (2) such that the rotational angle of the coin (10) about the longitudinal axis of the coin channel (2) changes linearly as a function of the movement in the longitudinal direction.

4. The coin channel (2) according to any of claims 1 to 3, wherein the coin channel (2) is configured such that a coin (10) moving in the coin channel (2) is rotated about the longitudinal axis of the coin channel (2) 0.5 to 1 .5 degrees per each 1.0 millimeter the coin (10) moves in the longitudinal direction of the coin channel (2).

5. The coin channel (2) according to any of the preceding claims, wherein the smallest inner width of the middle portion (4A) in a plane that isperpendicular to the longitudinal direction of the coin channel (2) is 5-20 percent greater than the thickness of the thickest coins (10) that the coin channel (2) is configured for.

6. The coin channel (2) according to any of the preceding claims, wherein the inner diameter of the coin channel (2) in a plane that is perpendicular to the longitudinal direction of the coin channel (2) in the direction from the first outer portion (4B) towards the second outer portion (4C) is 5-20 greater than the diameter of the largest coins (10) that the coin channel (2) is configured for.

7. The coin channel (2) according to any of the preceding claims, wherein the coin channel (2) is formed of two or more coin channel modules (3) that are attached to each other one after another.

8. The coin channel (2) according to claim 7, wherein each coin channel module (3) comprises snap-fit connectors (6, 7, 8, 9) for attaching the coin channel module (3) to another coin channel module (3).

9. The coin channel (2) according to claim 7 or 8, wherein the length of the coin channel modules (3) is selected so that the coin channel (2) turns in a single coin channel module (3) at most 40 degrees.

10. A gaming machine (1 ) comprising a coin channel (2) according to any of the preceding claims.11 . The gaming machine (1 ) according to claim 10, wherein the coin channel (2) is arranged between a coin feeding opening (12) and a coin detection device (5) of the gaming machine (1 ).

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