JP2001273539A - Rotating coin selector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely exclude wrong coins regardless of increase of rotation speed of coins. SOLUTION: A coin passage is constituted of an arcuate projecting part 11C, a side guide 11D which is placed on at least one side of the arcuate projecting part and projects from the arcuate projecting part side in the projecting direction of the arcuate projecting part by a prescribed extent, and a coin rotation guide rail 9 arranged a prescribed gap apart from the arcuate projecting part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling coin selector for sorting inserted coins into genuine coins and unauthorized coins while rolling the coins. In particular, the present invention relates to a rolling coin selector used in a game machine such as a "sling machine", a so-called "pachislot". The “coin” used in this specification is a general term for medals and tokens unique to game machines in addition to coins as currency.

[0002]

2. Description of the Related Art This type of rolling type coin selector is disclosed, for example, in Japanese Utility Model Laid-Open No. 6-25963 (corresponding US Pat.
No. 1). This will be described with reference to FIGS. FIG. 15 is a perspective view of the coin selector.
FIG. 16 is a sectional view taken along line XX in FIG.

[0004] Reference numeral 84 denotes a plate-shaped frame which is long in the axial direction, and is fixed in the game machine in the axial direction and inclined about the axis as apparent from FIG. 16 by mounting pieces 99 and 98 at both ends. . A guide rail 86 is formed by bending the lower edge of the frame 84 into an L-shape following the coin entrance 81. The guide rail 86 is formed up to the vicinity passing through a sorting window 89 described later. The upper surface of the guide rail 86 serves as a coin guide surface 87.
In the middle of the frame 84, a rectangular sorting window 89 is perforated.

At the upper edge of the sorting window 89, a sorting plate 101 is provided.
Is screwed to adjust the position. 91 is frame 8
15 is a cancel plate that is rotatably supported by a pivot 88 at the upper edge of the frame 4 and that is arranged on the back side of the frame 84 in FIG. 15 and whose lower edge is arranged corresponding to the sorting window 89. . Numeral 85 designates the pivot 8 so as to be integrally movable with the cancel plate 91.
8 is a door plate that is pivotally supported by 8 and arranged on the front side of the frame 84. The upper end of the frame 84 and the upper end of the door plate 85 form a funnel-shaped inlet 81 at the upper end of the frame 84 for receiving coins inserted into the coin insertion slot of the pachislot machine.

Reference numeral 95 denotes an L-shaped cancel plate whose upper end is pivotally supported by a projection 94 of the frame 84. 96
Is a solenoid fixed to the frame 84, which is selectively excited and demagnetized by an external signal. Cancel plate 95
When the solenoid 95 is attracted by the solenoid 95, the leading end of the guide surface 8
Extend 7 When the solenoid 96 is demagnetized, the cancel plate 95 is rotated by a spring (not shown) so that the leading end of the cancel plate 95 comes off from the extension of the rail 86 to form a drop hole 92.

[0006] The lower edge 90 of the sorting plate 101 and the guide surface 87 of the rail 86 regulate an interval 83 slightly wider than the diameter of the genuine coin. That is, when the coin A from the entrance 81 rolls on the guide surface 87 and comes to the portion of the selection plate 101, if it is a genuine coin, it rolls slightly below the lower edge 90. At this time, since the upper edge of the coin A is guided by the lower edge 90 to prevent the coin A from falling down, the coin A can pass through the sorting window 89. However, if the coin is an illegal small-diameter coin, it will not be guided by the lower edge 90, and will fall by its own weight, fall into the sorting window 89, and fall from the guide surface 87. Of course, the large-diameter fraudulent coins may have a gap 83 between the guide surface 87 and the lower edge 90.
Cannot be entered because the diameter is larger than
6 and the door plate 85.

When the solenoid 96 is excited, the cancel plate 95 is attracted and its tip is located on the extension of the rail 86, so that the coins passing through the sorting window 89 face the upper surface of the cancel plate 95. It can roll to reach the outlet 82. However, when the solenoid 96 is demagnetized, the cancel plate 95 is rotated by a spring (not shown), and comes off the extension of the rail 86 to form a drop hole 92. As a result, the coin A falls into the drop hole 92 and exits 82
Can not be reached. This cancel function is for returning the coin to the gamer even when a coin is inserted when the game machine is out of order or in a ready state.

In recent years, speedy games have been desired. In the conventional device, the frame 84 keeps an elevation angle with the rail 84 as a fulcrum about 20 degrees from the horizontal plane,
Further, since the coin has an angle of about 20 degrees from the entrance 81 side to the exit 82 side, the coin has a large contact area with a member constituting the passage, so that the slip resistance is large, and to increase the rolling speed of the coin. There is a limit. Therefore, in order to increase the rolling speed of the coin, it has been considered that the inclination around the axis of the frame 84 is eliminated and the inclination of the rail 86 is increased so that the coin rolls almost vertically. When the coin is in a substantially vertical state, the frictional contact area with the coin guide member is reduced, and the coin can be accelerated by utilizing gravity, so that the coin speed is greatly increased. However, there has not yet been proposed an apparatus for checking the outer diameter of a coin while keeping the coin in a substantially upright state and selecting illegal coins.

[0009]

SUMMARY OF THE INVENTION It is a first object of the present invention to check the outer diameter of a coin while keeping the coin in a substantially upright state so that illegal coins can be sorted out. A second object of the present invention is to make it possible to easily check the outer diameter of a coin to be used even if the diameter of the coin is changed.

[0010]

In order to achieve this object, a coin selector according to the present invention comprises an arc-shaped convex portion and at least one side of the arc-shaped convex portion, the arc-shaped convex portion being located on the side of the arc-shaped convex portion. A coin guide is formed by a side guide projecting by a predetermined amount in a projecting direction of the portion, and a coin rolling guide rail arranged at a predetermined interval from the arc-shaped convex portion.

The coin passage has a substantially vertical descending portion,
The guide rail of the side guide is composed of an arc portion following the descending portion and a slope portion following the arc portion, and protrudes from the arc-shaped convex portion by an allowable diameter error of the coin. Furthermore, there is provided a biasing means for biasing the coin toward the side guide rail. Further, the arc-shaped convex portion
It is a part of the peripheral surface of the roller.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

1 is a perspective view of the embodiment. FIG. 2 is a front view of the embodiment. FIG. 3 is a cross-sectional view taken along line AA of FIG. 2. FIG. 4 is a rear view of the embodiment. FIG. 6 is a perspective view of the embodiment with the cover removed, FIG. 7 is a front view of the embodiment with the cover removed, FIG. 8 is a cross-sectional view taken along line CC of FIG. 7, and FIG. FIG. 10 is a sectional view taken along line DD of FIG. 9. FIG. 11 is a sectional view taken along line DD of the first gate means in the cancel position. FIG. FIG. 13 is a rear view in which brackets are removed from FIG. 4 in a state in which the gate means is at the cancel position. FIG. 14 is an explanatory view enlarging a guide rail and an arc-shaped convex portion. FIG. 16 is a sectional view taken along line XX of FIG.

Reference numeral 1 denotes a main body, which is formed of resin or the like. Reference numeral 2 denotes a cover formed of a resin or the like, and is rotatably pivotally mounted on a bearing 3 protruding from the main body 1 by a shaft 4. The cover 2 has a coil spring 7 wound around the shaft 4.
To the main body 1 side. 5 is a coin insertion hole, and 6 is a coin exit.

Next, the structure of the main body 1 will be described mainly with reference to FIGS. On the main body 1, a rail 8 whose width is almost the same as that of the coin is formed to protrude to the side. The rail 8 has a substantially vertical descending portion 8A, followed by a substantially quarter arcuate portion 8A.
B, a straight slope 8C following the arc 8B. A stainless plate 9 is attached to the surface of the rail 8 to prevent abrasion. Therefore, the surface of the stainless steel plate 9 is the coin guide rail G. A vertical wall 8D is provided on the main body 1 side adjacent to the guide rail G. The plane including the guide rail along the guide rail G is the coin passage 1.
0 is formed.

A guide roller 11 is rotatably supported on a shaft 12 projecting from the main body 1 so as to be concentric with the arc surface 8B. As is clear from FIGS. 3, 8, and 14, the guide roller 11 has a guide recess 11A having a hook-like cross section for guiding the peripheral surface and one side surface of the coin. That is,
An arc-shaped convex portion 11C which is a peripheral surface of the small diameter portion 11B of the roller 11
And a side guide 11D which is a side wall of the large diameter portion 11E and protrudes in the same direction as the convex portion 11C.

The guide recess 11A is located in the same plane as the guide rail G, that is, in the coin passage 10. The distance between the protrusion 11C of the guide roller 11 and the guide rail G is set slightly larger than the diameter of a genuine coin. The protrusion amount of the side guide 11D, that is, the protrusion 11C
The height H from the peripheral surface of the genuine coin to the large-diameter portion 11E depends on the diameter error of the genuine coin and the manufacturing and assembly errors of the guide rail G and the guide roller 11, and the end of the genuine coin that rolls in close contact with the guide rail G. Are set to be guided by the side guide 11D. That is, if the diameter of the coin is smaller than the genuine coin, the coin is not guided by the side guide 11D.

A regulating plate 13 has a straight regulating surface 13A and is slightly thicker than a coin.
To the main body 1. Guide rail G and regulation surface 1
3A has an interval slightly larger than the diameter of the genuine coin, and has a function of determining the diameter of the genuine coin and guiding. Non-contact type sensors 15A, 15B and 15C in a concave shape are arranged on the slope 8C of the guide rail G. These sensors 15A, 15B, and 15C output signals when coins are detected. The guide rail G is located in a recess of the sensor 15B. The sensors 15A and 15C are arranged such that the coin passage 10 is present in the recesses.
The sensor 15A is fixed to a bracket 16A fixed to the main body 1. The sensors 15B and 15C are similarly fixed to the brackets 16B and 16C.

Reference numeral 17 denotes a turning prevention plate disposed on the opposite side of the main body 1 with the coin passage 10 therebetween. Turning prevention plate 17
Are fixed to the bracket 16A, and the sensors 15A and 15A
The space between C and the sensor 15A is closed. 21 is the first
The gate means is made of resin. The first gate means 21 is rotatably supported by a shaft 23 supported by a bearing 22 protruding from the rear surface of the main body 1. As shown in FIG. 11, the tip end of the first gate means 21 has a coin-shaped passage 10, that is, a bar-shaped protrusion 21 which is expediently traversed above the guide rail G at a right angle.
A, an arcuate surface 21B is formed following the protrusion to be convex toward the upstream side of the coin passage 10. The projecting positions of the projecting portion 21A and the arc-shaped surface 21B into the coin passage 10 are immediately downstream of the arc portion 8B and upstream of the sensors 15A and 15B.

Reference numeral 24 denotes a hole formed in the main body 1 for projecting the first gate means 21. 25 is a second gate means,
Molded with resin. As is apparent from FIG. 13, one end of the second gate means 25 is rotatably pivoted on a shaft 28 fixed to a bearing 27 projecting from the rear surface of the main body 1.

The second gate means 25 is constantly urged toward the coin passage 10 by urging means, for example, a spring 35 mounted around the shaft 28. Usually, the cam surface 25A is moved by the urging force as shown in FIG.
In a state where it is located at 0, it is stopped by a stopper (not shown) and is stationary. The second gate means 25 is disposed on the arc portion 8B. That is, the protrusion 21A or the arcuate surface 21B
In order to prevent the next coin from colliding with a coin locked in the first gate means, the first gate means 21 and the coin are slightly separated from the diameter of the coin. The second gate means 25 is formed in an arc shape along the arcuate portion 8B when viewed from the front, and protrudes from the upstream side to the downstream side of the coin passage 10 into the coin passage 10 for a while (see FIG. 10). Cam surface 2
5A are formed. The second gate means 25 is arranged at the opening 26 of the main body 1.

Reference numeral 57 denotes a solenoid fixed to the back of the main body 1. As is apparent from FIG. 12, one end of the link 29 is pivotally connected to the tip of the armature 58 of the solenoid 57 by the pin 31 penetrating the armature 58. The other end of the link 29 is pivotally connected to an intermediate portion of the first gate means 21 by a pin 32. A coil spring 33 is interposed between the pin 31 and the solenoid 57, and constantly urges the armature 58 in a protruding direction. Thus, when the solenoid 57 is turned off, the armature 58 is protruded by the resilient force of the coil spring 33, and the first gate means 21 is turned most counterclockwise in FIG. At the cancel position, i.e., it comes into contact with a stopper (not shown) and stands still.

When the game machine is in operation, the solenoid 57 is excited and the armature 58 is attracted, so that the first gate means 21 is moved rightward through the pin 31, the link 29 and the pin 32 as shown in FIG. Is drawn to. As a result, the first gate means 21 is rotated clockwise about the shaft 23. In the course of the turn, the first gate 21
Is engaged with the projection 25D of the second gate means 25, and the second gate means 25 is rotated with a friend to form the projection 21D.
A and the second gate means 25 are withdrawn from the coin path 10 and held at the withdrawal positions. This projection 21A
The position at which the armature 58 comes into contact with the protrusion 25 </ b> D and starts the friendship is at a position where the armature 58 is almost drawn into the solenoid 57. Therefore, since the suction force of the solenoid 57 is large, even if the urging force of the spring 35 of the second gate means 25 is applied, the suction can be performed against it.

Reference numeral 37 denotes a manual cancel lever which is pivotally attached to a protruding end of the shaft 12 on the rear side of the main body 1. As is apparent from FIG. 4, reference numeral 38 denotes a manual cancel lever, which is located in the opening 26 and has a size of about 1/4 of an arc so as to face the second gate 25 and the first gate 21. It is becoming. This manual cancel lever 3
Reference numeral 8 is fixed to the arm 39, and has a cam protruding from the rear surface. The arm 3 protruding on the opposite side of the cancel receiving lever 37
7A has a cam formed opposite to the cam.

When the cancel lever 37 is depressed by the cancel button of the game machine, it rotates around the shaft 12 in the counterclockwise direction in FIG. Due to this rotation, the manual cancel lever 38 is pushed down in the vertical direction with respect to the paper surface in FIG. 4 by the two cams, and the leading end enters the coin passage 10 to force the coin located in the coin passage 10. It is pushed out from the guide rail G and dropped. When the depression of the cancel button of the game machine is released, the cancel receiving lever 37 returns due to the elasticity of the spring portion 40. With this return, the manual cancel lever 38 returns to the retreat position separated from the coin passage 10 by the elastic force of the arm 39.

The cover 2 is a guide portion 2A which is inclined so that the thickness of the passage becomes thinner as the portion facing the inlet 5 descends from the upper end side. Subsequent to the guide portion 2A, a portion 2B defining a coin passage 10 slightly thicker than the coin, and a guide portion 2C of a canceled coin, that is, a coin falling off the guide rail G are formed. As is clear from FIGS. 1 and 2, the shaft 46 is supported by the bearings 45A and 45B protruding from the cover 2.

An upper end of a guide piece 47 is rotatably connected to the shaft 46, and a lower end thereof is suspended. The lower end of the guide piece 47 is curved along the coin path 10. A spring (not shown) having a low elasticity is interposed between the screw 49 locked to the cover 2 by the nut 48 and the guide piece 47, and the guide piece 47 is
It is urged to protrude to zero. The amount of protrusion is regulated by a stopper (not shown) so that the amount of protrusion slightly contacts the coin.

An auxiliary stopper 51 is rotatably suspended from the shaft 46. The lower end of the auxiliary stopper 51 is bent in an L-shape toward the protrusion 21A of the first gate means 21. The bent end 51A is connected to the protrusion 2 of the first gate means 21.
After 1A crosses the coin path 10, it contacts the tip.

When the genuine coin is inserted into the entrance 5, it is guided by the guide portion 2A of the main body and the cover 2, the regulating surface 13A, the convex portion 11C and the guide rail G of the descending portion 8A, and falls vertically. Then, the guide rail G and the vertical wall 8D of the descending portion 8A, the side guide 11D and the convex portion 11C of the guide roller 11, and the guide piece 47 guide the slope portion 8C.

At this time, since there is no guide surface on the cover 2 side, it is not possible to prevent the coin from swinging. Therefore,
The guide piece 47 is applied to prevent unnecessary drop due to vibration of the coin itself. When entering the slope 8C, the coin sequentially passes through the sensors 15A, 15B, and 15C. The coins passing through the sensor section are guided by the guide rail G and the main body 1 and are collected from the exit 6 to a coin accumulating section of the game machine.

Next, the operation of this embodiment will be described. When the game machine is not in use, the solenoid 57 is demagnetized. For this reason, the armature 58 is projected by the spring force of the spring 33. Thereby, the pin 3
1, the first gate means 21 via the link 29 and the pin 32
Is in the cancel position rotated most counterclockwise as shown in FIG. 12, and is in contact with a stopper (not shown) and is stationary.

In this state, the projection 21A of the first gate means 21 is located at a position deviating from the coin passage 10 and the arc-shaped portion 21B is located in the coin passage 10. The second gate means 25 is urged by the spring force of the spring 35 so as to protrude toward the coin passage 10, and the cam surface 2
5A is at the cancel position located in the coin passage 10. When a coin is inserted from the entrance 5 in the state of FIG. 12, the coin descending through the coin passage 10 of the descending portion 8A collides with the cam surface 25A of the second gate means 25, and the coin moves along the cam surface 25A. Since it is slid laterally to the main body 1 side, it comes off the guide rail G, and the main body 1 and the guide portion 2
It falls down the passage between C and is returned to the return port of the game machine (not shown).

Next, when the game machine is in use, the solenoid 57 is excited. Therefore, the armature 58 is drawn into the solenoid 57 against the spring force of the spring 31. Thereby, the pin 31, the link 29,
The first gate means 21 is rotated clockwise from the state shown in FIG. 12 via the pin 32, and the projection 21D comes into contact with the projection 25D when the arc-shaped portion 21B comes off the coin path 10. After this, the first gate means 21 is moved to the projection 21D by the projection 2D.
5D is pushed to bring the second gate means 25 together, and when the projection 21A of the first gate means 21 and the cam surface 25A of the second gate means 25 are separated from the coin passage 10, they come into contact with a stopper (not shown). It comes to rest at the 10 evacuation position.

In this state, when the coin C is inserted into the entrance of the game machine, the coin C passes through the entrance 5, is guided on the peripheral surface by the guide rail G and the convex portion 11C, and
The guide piece 47 is pressed against one side of the coin C by a weak spring force and pressed against the vertical wall 8D and the side guide surface 11D, whereby the both sides are rolled while being guided by them. The coin C is accelerated by gravity in the descending portion 8A, is smoothly turned in the circular arc portion 8B so as not to lose its speed, and rolls on the slope portion 8C to reach the exit 6.

As described above, the descending portion 8A which falls almost vertically.
Is effective in that the rolling speed of the coin C can be increased in a short distance. In the descending portion 8A and the arc portion 8B, the guide piece 47 also pushes from the side with an extremely weak spring force to guide the coin C to the genuine coin so as not to come off from the guide rail 8 by swinging.

Since a centrifugal force acts on the coin C at the arc portion 8B, the coin C is pressed against the guide rail G, that is,
Rolling while closely contacting, the guide roller 11
Make 4 laps. In the arc portion 8B, since the coin C is in close contact with the guide rail G, some of the genuine coins
It advances while being guided by the side guide 11D in one guide recess 11A. When the coin C jumps on the guide rail G, the coin C advances while being guided by the protrusion 11C.
Coins C rolling on the slope 8C are sensors 15A, 15C.
B and 15C pass in this order. The control unit (not shown) does not operate anything if it determines that the coin is a genuine coin based on the signals from these sensors.

However, if it is determined that the coin is an illegal coin, the solenoid 57 is demagnetized to cause the first gate means 21 and the second gate means 25 to protrude into the coin passage 10, and the coin C inserted thereafter is removed from the guide rail G. To cancel. The canceled coin C falls through the guide portion 2C.

When an illegal coin is used, for example, when the diameter of the coin C is small, the coin does not reach the side guide 11D of the guide roller 11 of the coin C.
Of the main body 1 and the guide portion 2C of the cover 2 by being pushed down to the opening 26 side by the pressing force and coming off the guide rail G.

When the width of the coin C is wide, it is supported at the entrance 5. When the diameter of the coin C is large, the coin C is supported between the guide rail G and the protrusion 11C. At this time, the guide portion 2C of the main body 1 and the cover 2 is pushed by the manual release lever 38 toward the cover 2 and removed from the guide rail G.
Drop between.

The turning prevention plate 17 secures a wire to the coin C, passes through the sensors 15A, 15B, and 15C, and turns the coin C sideways using a wire to connect the sensors 15A, 15C, and 15B to each other. This is for preventing unauthorized use such as pulling back the gap between them. If the turning prevention plate 17 is provided, the coin C is caught on the turning prevention plate 17 and cannot be pulled back even if the coin C is turned and pulled back. The present invention is not limited to the embodiment shown in the drawings, and may be constituted entirely by a slope without providing a vertical descending portion in the coin passage. The side guide 11D is not limited to a planar shape as in the embodiment, but may be a ring shape positioned on the peripheral surface of the large diameter portion 11E. The means for urging the coin C toward the side guide 11D includes a guide piece 47 biased by a spring and a slight inclination of the main body 1 clockwise in FIG. And the vertical wall 8D. Further, even if the guide piece 47 is not provided, the coin having a small diameter falls off the guide rail G due to the swing of the coin itself. However, sorting can be performed more reliably by urging the guide pieces 47 in the lateral direction. When coins having different diameters are used, it is only necessary to replace the small diameter portion 11B with the guide roller 11 adapted to the diameter of the coin.

According to the present invention, there is provided an arc-shaped convex portion, a side guide on at least one side of the arc-shaped convex portion, protruding from the arc-shaped convex portion side by a predetermined amount in a protruding direction, and the arc-shaped convex portion. And the coin rolling guide rails arranged at predetermined intervals, the coin passage is constituted, so that coins having an incorrect diameter can be quickly and accurately selected.

Since the coin passage is composed of a substantially vertical descending portion, an arc portion following the descending portion, and a slope portion following the arc portion, the coin is accelerated by gravity at the descending portion and its speed is not impaired. Since the direction is smoothly changed at the arcuate portion and the roller is further rolled at the rear slope, the gravity can be used to the maximum for accelerating the coin. Therefore, the descending portion can be made a short distance and the device can be made compact. Also, since centrifugal force is applied to the coin in the arc-shaped portion, the coin comes into close contact with the guide rail, so that the coin can be prevented from jumping up and the coin diameter can be accurately checked in cooperation with the guide roller.

Since the side guide protrudes from the arc-shaped convex portion by an allowable diameter error of the coin, it is possible to accurately sort illegal coins having a small diameter.

When the biasing means for biasing the coin to the side guide is used, the coin is positively removed from the guide rail in the case of an incorrect size, so that the illegal coin can be quickly removed.

Since the arc-shaped convex portion is a part of the peripheral surface of the roller, there is an advantage that the arc-shaped convex portion need only be replaced with a guide roller having a small diameter portion and a large diameter portion.

[0045]

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a front view of the embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a rear view of the embodiment.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a perspective view of the embodiment with a cover removed.

FIG. 7 is a front view of the embodiment with a cover removed.

FIG. 8 is a sectional view taken along line CC of FIG. 7;

FIG. 9 is a front view of the operating state of the embodiment with the cover removed.

FIG. 10 is a sectional view taken along line DD of FIG. 9;

FIG. 11 is a sectional view taken along line DD in a state where the first gate means is retracted;

FIG. 12 is a sectional view taken along the line DD in a state where the first and second gate means are at the cancel position.

FIG. 13 is a rear view of the embodiment with the manual cancel lever and the arm removed;

FIG. 14 is an explanatory view in which a guide rail and an arc-shaped convex portion are enlarged.

FIG. 15 is a perspective view of a conventional example.

FIG. 16 is a sectional view taken along line XX of FIG. 15;

[Explanation of symbols]

 5 Inlet 6 Outlet 8A Downward section 8B Arc section 8C Slope section 9 Coin rolling guide rail 10 Coin passage 11 Guide roller 11C Arc convex section 11D Side guide

Claims (5)

[Claims] An arc-shaped convex portion, a side guide on at least one side of the arc-shaped convex portion, protruding a predetermined amount from the arc-shaped convex portion toward a projecting direction of the arc-shaped convex portion, and the arc-shaped convex portion. A rolling coin selector, wherein a coin passage is constituted by a convex portion and a coin rolling guide rail arranged at a predetermined interval. 2. The rolling coin selector according to claim 1, wherein the coin path includes a substantially vertical descending portion, an arc portion following the descending portion, and a slope portion following the arc portion. 3. The rolling coin selector according to claim 1, wherein the side guide protrudes from the arc-shaped convex portion by an allowable diameter error of the coin. 4. The rolling coin selector according to claim 1, further comprising a biasing means for biasing the coin toward the side guide. 5. The rolling coin selector according to claim 1, wherein the arc-shaped convex portion is a part of a peripheral surface of the roller.