KR101741932B1

KR101741932B1 - Device for identifying coin-shaped object to be detected

Info

Publication number: KR101741932B1
Application number: KR1020157011062A
Authority: KR
Inventors: 쇼고 모모세
Original assignee: 니혼 덴산 산쿄 가부시키가이샤
Priority date: 2012-11-20
Filing date: 2013-11-19
Publication date: 2017-05-30
Also published as: WO2014080880A1; KR20150064139A; CN104813370A; JP2014102666A; JP6066684B2

Abstract

Provided is a coin-like object discriminating device capable of suppressing the time-dependent deterioration of the identification accuracy of a coin-shaped object to be detected and simplifying the configuration. The coin type to-be-watched body identifying apparatus comprises a first core (12) and a second core (13) arranged at predetermined intervals in the thickness direction of a coin-shaped body to be detected, Convex portions 12a to 12c protruding toward the second core 13 and wound by the excitation coil 8 are formed on the first core 12 and protrusions 12a to 12c are formed on the second core 13, And the convex portions 13a to 13c to which the detecting coils 9 and 10 are wound are formed. Between the convex portions 12a to 12c and the convex portions 13a to 13c in the thickness direction of the detected body is the passage 5 through which the inspected object passes. The distance between the end face on the X1 direction side of the convex portion 12a and the end face on the X2 direction side of the convex portion 12b and the distance between the end face on the X1 direction side of the convex portion 13a and the X2 direction of the convex portion 13b Is at least the outer diameter of the object to be detected.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a coin-shaped object to be inspected,

The present invention relates to a coin-like object to be inspected for identifying authenticity, poor quality, and the like of a coin-shaped object to be detected.

Background Art [0002] Conventionally, a medal selector used in a slot machine has been known (see, for example, Patent Document 1). The medal selector described in Patent Document 1 is a device for selecting a medal inserted from a medal insertion slot. The medal selector ejects an unauthorized medal having a small size to the medal receiving plate, and sends out a regular medal to the medal tank. In this medal selector, a medallion passage through which the medal inserted from the medal slot is formed. In this medal selector, the medal is selected using this medallion passage.

Further, conventionally, a coin identification sensor used in an automatic vending machine or a ticket dispenser is known (see, for example, Patent Document 2). The coin identification sensor disclosed in Patent Document 2 has a magnetic material thickness sensor for detecting the material and the thickness of the coin and a magnetic diameter sensor for detecting the diameter of the coin. The material thickness sensor is disposed on one side of the coin conveyance path in a direction perpendicular to the thickness direction of the coin passing through the coin conveyance path and the conveyance direction of the coin, And is disposed on the other side of the coin transport path in the direction perpendicular to the transport direction of the coin.

In the coin identification sensor disclosed in Patent Document 2, the diameter sensor includes a core, an excitation coil, and a detection coil. The core of the diameter sensor has two protrusions protruding toward the material thickness sensor and a connecting portion connecting the two protrusions. The excitation coil and the detection coil of the diameter sensor are wound around the connection portion of the core. The material / thickness sensor includes a core, an excitation coil, and a detection coil. The core of the material / thickness sensor has two protrusions protruding toward the diameter sensor and a connecting portion connecting the two protrusions. A projecting portion protruding toward the thickness direction of the coin passing through the coin transporting path is formed at the tip end side of each of the two projecting portions. The excitation coil and the detection coil of the material thickness sensor are wound on each of the two protrusions. That is, the exciting coil and the detecting coil are wound on one of the protruding portions and the exciting coil and the detecting coil are wound on the other protruding portion. The material / thickness sensor is provided with a positional fluctuation correcting section for detecting the positional variation of the diameter sensor. The exciting coil and the detecting coil constituting the positional fluctuation correcting section are wound around the core connecting section of the material / thickness sensor . A step portion constituting the positional variation compensating portion is formed on the proximal end side of the core projection of the material / thickness sensor.

Japanese Patent Application Laid-Open No. 2009-72300 Japanese Patent Application Laid-Open No. 2003-6700

In the medal selector described in Patent Document 1, since medals are selected using the medal passage, when the medal selector is used for a long time and the guide constituting the medal passage is worn, the accuracy of medal sorting is lowered. Therefore, in the slot machine in which the medal selector is used, if the slot machine is used for a long time and the guide constituting the medal passage is worn, an unauthorized medal may be used. On the other hand, in the coin identification sensor disclosed in Patent Document 2, since the material, thickness sensor, and diameter sensor are magnetic sensors, the material, thickness, and diameter of the coin can be detected in a noncontact manner. Therefore, in this coin identification sensor, even if the coin identification sensor is used for a long time, it is possible to prevent the coin identification accuracy from deteriorating. Therefore, when this coin identification sensor is used in the slot machine, it is possible to prevent the identification accuracy of the coin identification sensor from being lowered even if the slot machine is used for a long time, and to prevent the use of an incorrect medal in the slot machine.

However, in the coin identification sensor disclosed in Patent Document 2, the protruding portion and the stepped portion are formed on the core projecting portion of the material / thickness sensor. In this coin identification sensor, the excitation coil of the material / thickness sensor is wound on each of the two protrusions, and the detection coil of the material / thickness sensor is wound on each of the two protrusions. In this coin identification sensor, the excitation coil and the detection coil of the diameter sensor are wound around the core connection portion of the diameter sensor, and the excitation coil and the detection coil constituting the position variation correction portion for detecting the positional variation of the diameter sensor are made of material, It is wound around the core connection of the sensor. As described above, in the coin identification sensor disclosed in Patent Document 2, the core and the thickness sensor of the material and the thickness sensor are complicated, and the configuration of the coil is complicated because many turns of the exciting coil and the detecting coil are wound around the core.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a coin-like object discriminating apparatus capable of suppressing a time-dependent reduction in the identification accuracy of a coin-shaped object to be detected and simplifying the configuration.

Means for Solving the Problems In order to solve the above problems, a coin-like object to be detected discriminator of the present invention is characterized by including a passage through which a coin-shaped body to be inspected passes, an exciting coil and a detecting coil, And a second core disposed on the other side in the thickness direction of the to-be-detected body, wherein the first core is provided with one excitation-side convex portion protruding toward the second core or The detection coil is wound on the excitation-side convex portion, the detection coil is wound on the detection-side convex portion, and the detection coil is wound on the excitation-side convex portion, And the distance between the excitation-side convex portion and the detection-side convex portion in the thickness direction of the to-be-detected body is a passage, and the passing direction of the to-be- The orthogonal direction is referred to as an orthogonal direction, One side in the cross direction is referred to as a first direction, the other side in the orthogonal direction is referred to as a second direction, the end surface on the first direction side of the excitation-side convex portion is referred to as a first end surface, Side end face of the detection side convex portion is referred to as a third end face and the end face of the detection side convex portion on the second direction side is referred to as a fourth end face, The distance in the direction perpendicular to the second core side end of the first end face disposed on the most first direction side and the second core side end of the second end face located on the second most direction side, Side end of the fourth end face disposed on the second direction side and the first core-side end of the fourth end face disposed on the second direction side is equal to or larger than the outer diameter of the object to be detected .

In the coin-operated body to be detected by the present invention, an excitation-side convex portion formed on the first core and wound with the excitation coil, and a detection-side convex portion formed on the second core, The passage in the thickness direction of the detection body is a passage through which the coin-shaped object to be inspected passes. Therefore, in the present invention, it is possible to identify the to-be-inspected body passing through the passage by the magnetic detection mechanism comprising the exciting coil, the detecting coil, the first core and the second core. That is, in the present invention, it is possible to identify the object to be detected by the non-contact type detection mechanism. Therefore, in the present invention, even if the coin-like body to be detected is used for a long time, it is possible to prevent the deterioration in the identification accuracy of the detected object. Further, in the present invention, since the exciting coil is wound around the excitation-side convex portion protruding toward the second core and the detecting coil is wound around the detection-side convex portion projecting toward the first core, It is possible to simplify the configuration of the second core and to reduce the number of turns of the exciting coil to the first core and the number of turns of the detecting coil to the second core. Therefore, according to the present invention, it is possible to simplify the configuration of the coin-operated subject identifying apparatus.

In the present invention, the distance in the direction perpendicular to the second core side end of the first end face disposed on the first direction side and the second core side end of the second end face disposed on the second direction side, And a distance in a direction orthogonal to the first core side end of the third end face disposed on the first direction side and the fourth core side end of the fourth end face disposed on the second direction side, The object to be detected can be passed through the passage so that a part of the object to be detected does not deviate from a magnetic path formed between the excitation-side projecting portion and the detection-side convex portion. Therefore, in the present invention, it is possible to properly identify the substance to be detected.

In the present invention, the distance in the direction perpendicular to the second core side end of the first end face disposed on the first direction side and the second core side end of the second end face disposed on the second direction side, And the distance in the direction orthogonal to the first core side end of the third end face disposed on the most first direction side and the first core side end of the fourth end face located on the second most direction side, It is preferable that the width is equal to or larger than the width of the passage of With this configuration, even if the detected object passes through the passage in the orthogonal direction, a part of the detected object does not deviate from the magnetic path formed between the excitation-side protrusion and the detection-side protrusion. Therefore, it becomes possible to increase the accuracy of identification of the outer diameter of the to-be-inspected body.

In the present invention, the coin-like body to be detected is characterized in that the detection coil is provided with a first detection coil and a second detection coil, and the second core is provided with a detection- A first detection-side convex portion disposed on one side of the first detection-side convex portion and a second detection-side convex portion disposed on the other side of the passage in the second direction; And the first detection coil is provided with the first detection side convex portion and the second detection side convex portion, or the first detection side convex portion, the second detection side convex portion and the third detection side convex portion, And the second detecting coil is wound on the third detecting side convex portion and is wound on the first core side of the end surface on the first direction side of the first detection side convex portion which is the third end surface arranged on the most first direction side Side end of the second detection-side convex portion which is the fourth end surface disposed on the second-direction side and the first-core-side end surface of the end surface of the second detection- And the first core side end of the third detection side convex portion is located at a certain position in the passage in the direction perpendicular to the passage of the object to be inspected It is preferable that the entire first core side end portion of the third detection side convex portion is formed so as to overlap with the detected body when viewed from the thickness direction of the detected body.

With this configuration, it is possible to identify the outer diameter of the object to be detected mainly using the first detecting coil, and to identify the material and thickness of the object to be detected mainly by using the second detecting coil. Therefore, it becomes possible to improve the identification accuracy of the detected object. Further, with this configuration, even when the object to be detected passes through the passage in the orthogonal direction, when viewed from the thickness direction of the object to be detected, the entire first-core-side end portion of the third detection- Side end of the third detection-side convex portion is formed so as to overlap with the outer circumferential surface of the to-be-detected body, the material and thickness of the to-be-detected body can be identified . Therefore, it becomes possible to improve the identification accuracy of the material and the thickness of the to-be-inspected object.

In the present invention, the coin-like body to be detected is characterized by comprising: a first connecting core connecting the end of the first core and the end of the second core in the first direction; And an annular annular core composed of a second connecting core connecting the end portion and the end portion of the second core, a first core, and a second core. With this configuration, leakage of the magnetic flux generated by the exciting coil from the annular core can be reduced. Therefore, it becomes possible to form a magnetic circuit having high efficiency in the annular core. In addition, this configuration makes it possible to make the annular core function as a magnetic shield, and it is possible to suppress the deterioration in the identification accuracy of the detected object caused by the external magnetic field.

In the present invention, the distance in the direction perpendicular to the second core side end portion of the first end face disposed on the first direction side and the first connection core, the distance A distance in an orthogonal direction between one core side end portion and the first connecting core, a distance in a direction perpendicular to the second core side end portion of the second end face disposed at the second most direction side and the second connecting core, And the distance in the orthogonal direction between the first core side end portion of the fourth end face disposed on the second direction side and the second connection core is larger than the distance between the excitation side convex portion and the detection side convex portion in the thickness direction of the detected body. Is preferably longer than the negative distance. With this configuration, it is possible to suppress leakage of the magnetic flux between the excitation-side projecting portion and the detection-side convex portion toward the first connection core or the second connection core. In other words, it is possible to suppress the magnetic flux leakage between the excitation-side convex portion and the detection-side convex portion, and it becomes possible to form a magnetic circuit with high efficiency in the annular core.

In the present invention, the coin-like body to be detected is characterized in that the detection coil is provided with a first detection coil and a second detection coil, and the second core is provided with a detection- A first detection-side convex portion disposed on one side of the first detection-side convex portion and a second detection-side convex portion disposed on the other side of the passage in the second direction; And the first detection coil is provided with the first detection side convex portion and the second detection side convex portion, or the first detection side convex portion, the second detection side convex portion and the third detection side convex portion, The second detection coil is wound on the third detection side convex portion, and the first core is provided with the first excitation side, which is disposed at the same position as the first detection side convex portion in the orthogonal direction, A second excitation-side convex portion disposed at the same position as the second detection-side convex portion in the orthogonal direction, That in addition the third excitation projections disposed at the same position as the third detection-side convex portion is formed in the T direction is preferred.

With this configuration, it is possible to identify the outer diameter of the body to be detected by using the first detecting coil, and to identify the material and the thickness of the body to be detected by using the second detecting coil. Therefore, it becomes possible to improve the identification accuracy of the detected object. In this case, the first detection-side convex portion arranged at the same position as the first detection-side convex portion in the orthogonal direction and the second excitation-side convex portion arranged at the same position as the second detection- Since the third excitation-side convex portion disposed at the same position as the convex portion and the third detection side convex portion in the orthogonal direction is formed in the first core, the density of the magnetic flux passing through the first detection side convex portion, The density of the magnetic flux passing through the side convex portion and the density of the magnetic flux passing through the third excitation side convex portion can be increased.

In the present invention, the distance between the end surface on the second direction side of the first detection side convex portion which is the fourth end surface, the shortest distance between the third excitation-side convex portion, and the shortest distance between the third detection- The shortest distance between the end face and the third excitation-side convex portion is preferably longer than the distance between the third detection-side convex portion and the third excitation-side convex portion in the thickness direction of the detected body. With this configuration, it is possible to suppress leakage of the magnetic flux between the third excitation-side convex portion and the third detection-side convex portion toward the first detection-side convex portion or the second detection-side convex portion. In other words, it is possible to suppress the leakage of magnetic flux between the third excitation-side convex portion and the third detection-side convex portion, and it becomes possible to increase the density of the magnetic flux passing through the third excitation-side convex portion.

In the present invention, the second core side end portion of the first end face on the first direction side of the first excitation-side projected portion as the first end face and the end face of the second excitation- Side end of the first excitation-side protrusion, the distance in the orthogonal direction of the two-core-side end portion, the second core-side end portion of the end face on the second direction side of the first excitation- Side end surface of the first detection-side convex portion, which is the third end surface, of the end surface of the first detection-side convex portion in the direction perpendicular to the second core- 2 distance in the direction orthogonal to the first core side end portion of the end face on the first direction side of the detection side convex portion and a distance between the end face on the second direction side of the first detection side convex portion which is the fourth end face, The distance between the end portion and the end surface of the second detection side projection on the second direction side, which is the fourth end surface, in the direction perpendicular to the first core side end portion, The outer diameter of the object to be detected is preferably smaller. With this configuration, even if the object to be detected passes through the passage in the orthogonal direction, the distance between the first detection side projection and the first excitation side projection, or between the second detection side projection and the second excitation side projection It is possible to prevent the object to be detected from passing through the passage in a state where the entirety of the object to be detected deviates. Therefore, it is possible to stabilize the output of the first detecting coil even if the object to be detected passes through the passage in the orthogonal direction, so that the identification accuracy of the object to be detected based on the first detecting coil can be improved It becomes possible.

In the present invention, the surface and the rear surface of the first detection-side convex portion, the front and back surfaces of the second detection-side convex portion, the front and back surfaces of the third detection side convex portion, A cylindrical first detection bobbin which covers the end surface and the fourth end surface of the detection target, and a second detection bobbin which covers the surface and the back surface of the third detection side projection in the passage direction of the detected object, And a cylindrical second detecting bobbin covering the end surface on the third end surface side and the end surface on the fourth end surface side of the third detection side convex portion in the orthogonal direction, The detection coil is wound on the first detection-side convex portion, the second detection-side convex portion, and the third detection-side convex portion via the bobbin for the second detection bobbin, Side convex portion.

In the present invention, the distance in the thickness direction of the to-be-inspected body, of the first end face, the second end face, the third end face, and the fourth end face, Side convex portion and the detection-side convex portion. With such a configuration, the magnetic flux between the excitation-side protrusion and the detection-side convex portion can be prevented from leaking into the excitation-side convex portion. In other words, it is possible to suppress the magnetic flux leakage between the excitation-side convex portion and the detection-side convex portion, and it becomes possible to form a magnetic circuit with high efficiency in the annular core.

In the present invention, it is preferable that the annular core is integrally formed of one sheet of metal plate.

In the present invention, it is preferable that a part of the annular core is formed with a gap which is shorter than the distance between the excitation-side convex portion and the detection-side convex portion in the thickness direction of the detected object.

INDUSTRIAL APPLICABILITY As described above, in the coin-like body to be detected, according to the present invention, it is possible to suppress the deterioration of the identification accuracy of the coin-shaped object to be inspected over time and to simplify the structure of the apparatus.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view of a coin-operated object identifying apparatus according to an embodiment of the present invention; FIG.
2 is a cross-sectional view of the medal shown in Fig.
Fig. 3 is a perspective view of the coin-like body to be detected shown in Fig. 1, with the case body removed. Fig.
Fig. 4 is a perspective view showing a state where the exciting coil, the first detecting coil and the bobbin are removed from the state shown in Fig. 3;
5 is a perspective view of the annular core shown in Fig.
6 is a plan view of the annular core shown in Fig.
Fig. 7 is a circuit block diagram of the coin-like object to be detected discriminating apparatus shown in Fig. 1. Fig.
8 is a diagram for explaining an output signal from the detecting coil shown in Fig.
Fig. 9 is a view for explaining the effect of the coin-like object to be detected discriminating apparatus shown in Fig. 1;
Fig. 10 is a view for explaining the effect of the coin-like object to be detected shown in Fig. 1;
11 is a plan view for explaining an exciting coil and a detecting coil according to another embodiment of the present invention.
12 is a plan view for explaining a core according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Schematic Configuration of Coin-like Detected Body Identification Device)

1 is a perspective view of a coin-operated object identifying apparatus 1 according to an embodiment of the present invention. 2 is a cross-sectional view of the medal 2 shown in Fig. Fig. 3 is a perspective view showing the state where the case body 3 is removed from the coin-like body to be detected identifying device 1 shown in Fig.

The coin to-be-watched body identifying apparatus 1 of the present embodiment is an apparatus for identifying a coin-shaped to-be-detected chain medal 2, and is used by being mounted on a slot machine (not shown). That is, the coin-operated apparatus 1 for identifying a to-be-watched body of this embodiment is an apparatus for identifying whether the medal 2 inserted from the medal slot of the slot machine is a regular one. Therefore, in the following, the coin type to-be-watched body identifying device 1 of this embodiment will be referred to as " medal identifying device 1 ". 1 and 3, the medal identifying device 1 includes a case body 3 and a magnetic sensor 4 accommodated in the case body 3. As shown in Fig. Further, the medal identifying device 1 is provided with a passage 5 through which the medal 2 passes.

The medal 2 is formed of a metal material having magnetism and is formed in a disk shape. As shown in Fig. 2, marginal portions 2a protruding from both sides in the thickness direction of the medal 2 are formed on the outer periphery of the medal 2. As shown in Fig. The edge portion 2a is formed over the entire periphery of the medal 2, and is formed in an annular shape.

The case body 3 is formed in a box shape of a rectangular parallelepiped. On one side surface (upper surface in Fig. 1) of the case body 3, there is formed a slit-shaped passing hole 3a through which the medal 2 passes. A slit-shaped passage hole through which the medal 2 passes is formed in a side surface (lower surface in Fig. 1) parallel to the side surface on which the through-hole 3a is formed. The through-hole and the through-hole (3a) are connected to the passage (5). A magnetic member 6, which is formed in a flat plate shape, is fixed to each of the four side surfaces orthogonal to the side surface on which the through-hole 3a is formed. The magnetic member (6) functions as a magnetic shield for protecting the magnetic sensor (4) from the external magnetic field of the medal identifying device (1). In the case body 3, a guide member (not shown) for guiding the medal 2 is fixed to the through hole 3a.

The magnetic sensor 4 includes an exciting coil 8 and detecting coils 9 and 10 and an annular core 11 around which exciting coils 8 and detecting coils 9 and 10 are wound . The annular core 11 is formed of a magnetic material. For example, the annular core 11 is formed of an iron-based magnetic material such as ferrite, amorphous or permalloy. Further, the annular core 11 is formed in a flat plate shape. Hereinafter, a specific configuration of the magnetic sensor 4 will be described.

(Configuration of magnetic sensor)

Fig. 4 is a perspective view showing a state in which the exciting coil 8, the detecting coil 9 and the bobbins 20, 21 are removed from the state shown in Fig. 5 is a perspective view of the annular core 11 shown in Fig. 6 is a plan view of the annular core 11 shown in Fig. Fig. 7 is a circuit block diagram of the coin-like object identifying apparatus 1 shown in Fig. 1. Fig. 8 is a diagram for explaining the output signal S1 from the detecting coil 9 and the output signal S2 from the detecting coil 10 shown in Fig.

In the following description, three directions perpendicular to each other are referred to as X direction, Y direction and Z direction. The X direction is referred to as a left-right direction, the Y direction as a forward-backward direction, and the Z direction as an up-down direction. The X1 direction side is referred to as a "right" side, the X2 direction side as a "left" side, the Y1 direction side as a "front" side, and the Y2 direction side as a "rear (rear) In this embodiment, the medal identifying device 1 is arranged such that the thickness direction and the vertical direction of the annular core 11 coincide with each other. Further, in this embodiment, the medal 2 passes through the passage 5 in the thickness direction of the annular core 11. That is, the up and down direction is the passing direction of the medal 2 passing through the passage 5. The back and forth direction is the thickness direction of the medal 2 passing through the passage 5. The right and left directions of the present embodiment are orthogonal directions perpendicular to the passing direction of the medal 2 and the thickness direction of the medal 2 and the right side is one side in the orthogonal direction and the left side is the other side in the orthogonal direction .

The magnetic sensor 4 includes the excitation coil 8 and the detection coils 9 and 10 and the annular core 11 wound with the excitation coil 8 and the detection coils 9 and 10 .

The annular core 11 is formed in an annular shape. Specifically, the annular core 11 is formed into a substantially rectangular annular shape elongated in the left-right direction. The annular core 11 constitutes a front side portion of the annular core 11 and a substantially linear first core 12 arranged in parallel with the left and right direction and a rear side portion of the annular core 11 A first core 12 and a second core 13. The first core 12 and the second core 13 are connected to each other by a substantially straight second core 13 disposed in parallel with the first core 12, A first connecting core 14 disposed parallel to the first connecting core 14 and a second connecting core 14 connecting the left end of the first core 12 and the left end of the second core 13, And a second linear connecting core 15. The annular core 11 of the present embodiment is formed by punching the press and the first core 12 and the second core 13 and the first connecting core 14 and the second connecting core 15 are integrally formed Respectively.

The first core 12 and the second core 13 are formed in the same shape and the first connection core 14 and the second connection core 15 are formed in the same shape. 6, the annular core 11 is formed in a line-symmetrical shape with respect to the center line CL1 parallel to the left-right direction passing through the center position of the annular core 11 in the front-rear direction, Symmetrical with respect to the center line CL2 parallel to the longitudinal direction passing through the center position of the annular core 11 in the direction of the center line CL2.

The first core 12 is provided with convex portions 12a, 12b and 12c as excitation-side convex portions protruding toward the second core 13 (that is, toward the rear side). The convex portions 12a to 12c are formed in a rectangular shape. The rear end face (that is, the front end face) of the convex portions 12a to 12c is parallel to the left and right direction, and the left and right end faces of the convex portions 12a to 12c are parallel to the front and rear direction. The rear end faces of the convex portions 12a to 12c are arranged in the same plane shape orthogonal to the front and rear direction. The width of the convex portion 12c in the left-right direction is narrower than the width of the convex portions 12a and 12b. In this embodiment, the right end surface of the convex portions 12a to 12c is the first end surface, and the left end surface of the convex portions 12a to 12c is the second end surface. The first end face and the second end face are formed at a distance longer than the distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the anteroposterior direction.

The convex portion 12a is disposed on the right end side and the convex portion 12b is disposed on the left end side and the convex portion 12c is disposed between the convex portion 12a and the convex portion 12b. Specifically, the convex portion 12c is arranged such that the center of the convex portion 12c in the left-right direction coincides with the center of the first core 12, and the convex portion 12a and the convex portion 12b, Symmetrical with respect to the center line CL2. The convex portion 12a and the convex portion 12b are formed in the same shape, and the first core 12 is formed in a line-symmetrical shape with respect to the center line CL2. The convex portion 12a of this embodiment is the first excitation-side convex portion, the convex portion 12b is the second excitation-side convex portion, and the convex portion 12c is the third excitation-side convex portion.

A gap is formed between the convex portion 12a and the first connection core 14 (specifically, between the right end surface of the convex portion 12a and the left end surface of the first connection core 14) And a gap is formed between the convex portion 12b and the second connection core 15 (specifically, between the left end surface of the convex portion 12b and the right end surface of the second connection core 15) have. A gap is formed between the convex portion 12a and the convex portion 12c (specifically between the left end face of the convex portion 12a and the right side end face of the convex portion 12c) in the left-right direction A gap is formed between the convex portion 12b and the convex portion 12c (specifically, between the right end face of the convex portion 12b and the left end face of the convex portion 12c). As described above, the first core 12 is formed in a line-symmetrical shape with respect to the center line CL2, and the gap between the convex portion 12a and the first connection core 14 and the gap between the convex portion 12b and the second connection The gap between the convex portion 12a and the convex portion 12c and the gap between the convex portion 12b and the convex portion 12c are the same size.

The rear end face of the first core 12 between the convex portion 12a and the convex portion 12c and between the convex portion 12b and the convex portion 12c is formed by the convex portion 12a and the first connection core 14 Of the first core 12 and between the convex portion 12b and the second connecting core 15, as shown in Fig.

As described above, the second core 13 is formed in the same shape as that of the first core 12, and is disposed at a line-symmetrical position with the center axis CL1 as an axis of symmetry. As a result, the second core 13 is formed with the convex portions 13a, 13b, and 13c as detection side convex portions protruding toward the first core 12 (that is, toward the front side). The convex portions 13a to 13c are formed in the same shape as the convex portions 12a to 12c and the front end faces (that is, the front end faces) of the convex portions 13a to 13c are formed in the same planar shape orthogonal to the front- Respectively. In this embodiment, the right end surface of the convex portions 13a to 13c is the third end surface, and the left end surface of the convex portions 13a to 13c is the fourth end surface. The third end face and the fourth end face are formed at a distance longer than the distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the forward and backward directions.

The convex portion 13a is disposed at the same position as the convex portion 12a in the right and left direction and the convex portion 13b is disposed at the same position as the convex portion 12b and the convex portion 13c is convex portion 12c. Like the first core 12, the second core 13 is formed in a line-symmetrical shape with respect to the center line CL2. The convex portion 13a of this embodiment is the first detection side convex portion, the convex portion 13b is the second detection side convex portion, and the convex portion 13c is the third detection side convex portion.

A gap is formed between the convex portion 13a and the first connection core 14 in the right and left direction and between the convex portion 13b and the second connection core 15, A gap of the same size as the gap of one connection core 14 is formed. A gap is formed between the convex portion 13a and the convex portion 13c in the left and right direction and a gap is formed between the convex portion 13a and the convex portion 13c between the convex portion 13b and the convex portion 13c. A gap of the same size as that of the gap is formed. The rear end face of the second core 13 between the convex portion 13a and the convex portion 13c and between the convex portion 13b and the convex portion 13c as in the case of the first core 12, 13b of the first core 13 and the first connecting core 14 and between the convex portion 13b and the second connecting core 15 on the rear side.

And between the convex portions 12a to 12c and the convex portions 13a to 13c in the forward and backward directions is the passage 5. The passage 5 is formed in a rectangular shape elongated in the left-right direction. As described above, in the case body 3, a guide member for guiding the medal 2 is fixed to the through hole 3a. The guide member guides the medal 2 to the through hole 3a so as to allow the medal 2 to pass between the right end surface of the convex portions 12a and 13a and the left end surface of the convex portions 12b and 13b . That is, the distance L1 (see Fig. 6) between the right end face of the convex portions 12a and 13a and the left end face of the left end face of the convex portions 12b and 13b is equal to the width of the passage 5 in the left- . The width of the passage 5 in the transverse direction is larger than the outer diameter of the medal 2. That is, the distance L1 is larger than the outer diameter of the medal 2. Specifically, the width of the passage 5 in the left-right direction is the medal 2 assumed to be inserted through the medal slot of the slot machine, is larger than the outer diameter of the medal 2 having the largest outer diameter, The distance L1 is larger than the outer diameter of the medal 2 having the largest outer diameter. The right end surface of the convex portion 12a of this embodiment is the first end surface disposed on the rightmost side (first direction side), and the left end surface of the convex portion 12b is the leftmost side (second direction side) And the right end surface of the convex portion 13a is a third end surface disposed on the rightmost side and the left end surface of the convex portion 13b is a second end surface disposed on the leftmost side of the fourth end It is a side.

The convex portions 12c and 13c are formed so that the entirety of the convex portions 12c and 13c is located at the medallion 2 when viewed from the front and rear direction regardless of the position of the medallion 2 at any position of the passage 5 in the left- Is formed so as to overlap with the substrate 2 and is arranged thereon. That is, the medal 2 has passed through the passage 5 so that the right end face of the convex portions 12a and 13a or the left end face of the convex portions 12b and 13b and the outer peripheral end of the medal 2 are aligned The convex portions 12c and 13c are formed so as to overlap the medals 2 when the whole of the convex portions 12c and 13c is viewed from the back and forth direction.

The distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the anteroposterior direction (more specifically, the distance between the rear end surface of the convex portions 12a to 12c in the anteroposterior direction) 13) between the right end surface of the convex portions 12a, 13a in the left-right direction and the left end surface of the first connection core 14 (see Fig. 6) 6) between the left end face of the convex portions 12b, 13b in the left-right direction and the right end face of the second connecting core 15 (see Fig. 6). The distance L2 between the convex portion 12c and the convex portion 13c in the anteroposterior direction is set to be the shortest distance between the convex portion 12c and the convex portion 13a The shortest distance between the rear end and the front end of the left end face of the convex portion 13a) and the shortest distance between the convex portion 12c and the convex portion 13b (i.e., the rear end of the left end face of the convex portion 12c The shortest distance of the front end of the right end surface of the convex portion 13b).

The distance L5 between the right end face of the convex portions 12a and 13a in the left and right direction and the right end face of the convex portions 12b and 13b and the distance L5 between the right side end face of the convex portions 12a and 13a The distance L6 between the side surface and the left end surface of the convex portions 12b and 13b is smaller than the outside diameter of the medal 2. [ Specifically, the distances L5 and L6 are medals (2) assumed to be inserted from the medal slot of the slot machine and smaller than the outer diameter of the medal (2) having the smallest outer diameter.

The exciting coil 8 is wound around the convex portions 12a to 12c. Specifically, as shown in Fig. 3, the upper surface and the lower surface of the convex portions 12a to 12c (the surface and the back surface of the first excitation-side convex portion 12a in the passing direction of the to- (Front surface and back surface of the second excitation-side convex section 12b and the front and back surfaces of the third excitation-side convex section 12c), the right end surface (first end surface) of the convex section 12a, and the convex section 12b The exciting coil 8 is wound around the convex portions 12a to 12c with the bobbin 20 of a substantially rectangular tube shape covering the left end face (second end face). That is, the bobbin 20 (female bobbin) is arranged so as to cover the upper and lower surfaces of the convex portions 12a to 12c, the right end surface of the convex portion 12a and the left end surface of the convex portion 12b, The coil 8 is wound around the convex portions 12a to 12c. The upper surface of the convex portions 12a to 12c (the surface of the first female side convex portion 12a) is convex portions 12a to 12c positioned on the upstream side of the annular core 11 in the passing direction of the medal 2. [ And the lower surface of the convex portions 12a to 12c (the back surface of the first female side convex portion 12a) is a surface on the downstream side of the annular core 11 in the passing direction of the medal 2 And the other side of the convex portions 12a to 12c positioned.

The detecting coil 9 is wound around the convex portions 13a to 13c. Specifically, as shown in Fig. 3, the upper surface and the lower surface of the convex portions 13a to 13c (the surface and the back surface of the first detection side convex portion 13a in the passing direction of the detected object 2) (The front surface and the rear surface of the detection side convex portion 13b and the front and back surfaces of the third detection side convex portion 13c), the right end surface (third end surface) of the convex portion 13a, and the convex portion 13b The detecting coil 9 is wound around the convex portions 13a to 13c through a substantially rectangular tube bobbin 21 (first detecting bobbin) covering the left end face (fourth end face). That is, the detection coil 9 is interposed between the upper and lower surfaces of the convex portions 13a to 13c, the right end surface of the convex portion 13a, and the left end surface of the convex portion 13b via the bobbin 21, Are wound around the convex portions 13a to 13c. The detecting coil 9 of this embodiment is the first detecting coil. The upper surface of the convex portions 13a to 13c (the surface of the first detection side convex portion 13a) is convex portions 13a to 13c positioned on the downstream side of the annular core 11 in the passing direction of the medal 2. [ Side surface of the annular core 11 in the direction of passage of the medal 2 and the lower surface of the convex portions 13a to 13c (the back surface of the first detection-side convex portion 13a) And the other side surface of the convex portions 13a to 13c positioned.

The detecting coil 10 is wound around the convex portion 13c. Specifically, as shown in Fig. 4, the upper and lower surfaces (the front surface and the back surface of the third detection side projection 13c) of the convex portion 13c, the right end surface (the third detection side convex portion 13c in the orthogonal direction) (The end surface on the side of the third end surface of the third detection side projection 13c) and the left end surface (the end surface on the fourth end surface side of the third detection side projection 13c in the orthogonal direction) The detecting coil 10 is wound around the convex portion 13c with the bobbin 22 (second detecting bobbin) interposed therebetween. That is, the detecting coil 10 is wound around the convex portion 13c with the bobbin 22 interposed therebetween so as to cover the upper and lower surfaces, the right end surface, and the left end surface of the convex portion 13c. The detecting coil 10 of this embodiment is the second detecting coil.

As shown in Fig. 7, an AC power source 25 is connected to one end of a conductor constituting the exciting coil 8, and the other end of the conductor constituting the exciting coil 8 is grounded. One end of the conductor constituting the detecting coil 9 is connected to an MPU (Micro Processing Unit) 29 through an amplifying circuit 26, a rectifying circuit 27 and an offsetting circuit 28, 9 are grounded at the other end of the conductor. One end of the conductor constituting the detecting coil 10 is connected to the MPU 29 through the amplifying circuit 31, the rectifying circuit 32 and the offset circuit 33, The other end of the lead is grounded. A comparator 35 for determining the sampling range of the output signals S1 and S2 from the detecting coils 9 and 10 is connected in parallel between the offset circuit 28 and the MPU 29. [

In the magnetic sensor 4, when the medal 2 is in the state of passing through the annular core 11 in the state in which the exciting coil 8 generates the alternating magnetic field on the inner peripheral side of the annular core 11 by the electric power supplied from the AC power source 25 5, the AC magnetic field on the inner peripheral side of the annular core 11 fluctuates. The output value of the output signal S1 from the detection coil 9 and the output value of the output signal S2 from the detection coil 10 fluctuate when the alternating magnetic field on the inner peripheral side of the annular core 11 fluctuates. In this embodiment, when the medal 2 passes through the passage 5 in a state where the exciting coil 8 generates the AC magnetic field, as shown in Fig. 8, the output value of the output signal S1 and the output signal S2 The detection circuit of the magnetic sensor 4 is configured so that the output value of the magnetic sensor 4 becomes larger.

The distance L1 between the right end face of the convex portions 12a and 13a and the left end face of the convex portions 12b and 13b in the right and left direction is equal to the width of the passage 5 in the left and right direction The detecting coil 9 is arranged so as to cover the upper and lower surfaces of the convex portions 13a to 13c, the right end surface of the convex portion 13a, and the left end surface of the convex portion 13b, And is wound around the convex portions 13a to 13c. The output value of the output signal S1 of the detecting coil 9 fluctuates due to the influence of the material, thickness and outer diameter of the medal 2 passing through the passage 5. [ On the other hand, the convex portions 12c and 13c are disposed between the convex portions 12a and 13a and the convex portions 12b and 13b, The entirety of the convex portions 12c and 13c is formed so as to overlap with the medal 2 and the detecting coil 10 is wound around the convex portion 13c. The output value of the output signal S2 of the detecting coil 10 fluctuates mainly by the influence of the material and the thickness of the medal 2 passing through the passage 5. [

In the medal identifying device 1, it is discriminated whether or not the medal 2 passing through the passage 5 is normal, for example, based on the maximum value V1 of the output signal S1 and the maximum value V2 of the output signal S2 have. When the medal 2 passes through the passage 5 in the state where the exciting coil 8 generates the AC magnetic field, the output of the output signal S1 and the output value of the output signal S2 become smaller, It is determined whether or not the medal 2 passing through the passage 5 is a regular one based on the minimum value of the output signal S1 and the minimum value of the output signal S2 do. As described above, since the medal 2 is provided with the edge portion 2a, the output signal S2 whose output value fluctuates mainly due to the influence of the material and the thickness of the medal 2, As shown in the drawing, when the center side of the medal 2 passes between the convex portion 12c and the convex portion 13c, and when the edge portion 2a is formed between the convex portion 12c and the convex portion 13c Peaks P1, P2, and P3 appear when passing. That is, three peaks P1, P2, and P3 appear in the output signal S2. It may be discriminated whether or not the medal 2 passing through the passage 5 is a regular one based on the values of the three peaks P1 to P3 and the maximum value V1 of the output signal S1.

(Main effect of this embodiment)

As described above, in this embodiment, it is discriminated by the magnetic sensor 4 whether or not the medal 2 passing through the passage 5 is regular. Therefore, in this embodiment, it is possible to discriminate whether or not the medal 2 is regular, without contacting the medal 2 with the constituent parts of the magnetic sensor 4. Therefore, in this embodiment, even when the medal identifying device 1 is used for a long time, it is possible to prevent the identification accuracy of the medal 2 caused by the wear of the component parts of the magnetic sensor 4 from lowering.

In this embodiment, the excitation coil 8 is wound on the rectangular convex portions 12a to 12c protruding toward the second core 13, and a rectangular convex portion 13a The magnetic sensor 4 is constituted by winding the detecting coil 9 to the convex portion 13c and winding the detecting coil 10 to the convex portion 13c. Therefore, in this embodiment, the configuration of the first core 12 and the second core 13 is simplified, and the configuration of the excitation coil 8 and the detection coils 9, 10 It is possible to reduce the number of turns. Therefore, in this embodiment, the configuration of the medal identifying device 1 can be simplified.

In this embodiment, the output value of the output signal S1 of the detecting coil 9 is changed by the influence of the material, thickness and outer diameter of the medal 2 passing through the passage 5, The output value of the output signal S2 mainly fluctuates due to the influence of the material and the thickness of the medal 2 passing through the passage 5. [ Therefore, in this embodiment, it is possible to identify the outer diameter of the medal 2 mainly by using the detecting coil 9, and to identify the material and the thickness of the medal 2 mainly by using the detecting coil 10 It becomes. Therefore, in this embodiment, the identification accuracy of the medal 2 can be improved. For example, it is possible to distinguish the regular medal 2 from the regular medal 2, the outer diameter and the thickness of the regular medal 2, the regular medal 2, It becomes possible to distinguish between the medal 2 and the regular medal 2 having the same material but different outer diameters.

The distance L1 between the right end face of the convex portions 12a and 13a and the left end face of the convex portions 12b and 13b in the lateral direction is equal to the width of the passage 5 in the left- Even when the medal 2 passes through the passage 5 in the left-right direction, a part of the medal 2 is held between the convex portions 12a to 12c and the convex portions 13a to 13c There is no possibility of deviating from the magnetic path formed in the magnet. Therefore, in this embodiment, it is possible to suppress the variation of the output value of the output signal S1 of the detection coil 9 caused by the passing position of the medal 2 in the left-right direction. As a result, in the present embodiment, it becomes possible to improve the identification accuracy of the outer diameter of the medal 2. [

Particularly in this embodiment, the distance L5 between the right end surface of the convex portions 12a and 13a and the right end surface of the convex portions 12b and 13b, and the distance L5 between the left end surface of the convex portions 12a and 13a and the convex portions 12b, 13b is a medal 2 assumed to be inserted from the medal insertion slot of the slot machine and is smaller than the outer diameter of the medal 2 having the smallest outer diameter so that the distance L6 in the left- Even if the medal 2 passes through the passage 5 at any position, the medal 2 is prevented from moving between the convex portion 12a and the convex portion 13a or between the convex portion 12b and the convex portion 13b, There is no case in which the medal 2 passes through the passage 5 in a state where the entirety is off. Therefore, in the present embodiment, it is possible to effectively suppress the fluctuation of the output value of the output signal S1 of the detection coil 9 caused by the passing position of the medal 2 in the left-right direction. As a result, It is possible to effectively improve the identification accuracy of the outer diameter of the outer ring.

9A, the distance L7 between the right end surface of the convex portions 12a and 13a and the right end surface of the convex portions 12b and 13b and the distance L7 between the right end surface of the convex portions 12a and 13a If the distance L8 between the left end face and the left end face of the convex portions 12b and 13b is larger than the outer diameter of the medal 2, as shown by the solid line in Fig. 9 (A) The medal 2 passes through the passage 5 so as to pass between the convex portion 12a and the convex portion 13a and between the convex portion 12b and the convex portion 13b, A part of the medal 2 passes between the convex portion 12a and the convex portion 13a but the entire medal 2 passes between the convex portion 12b and the convex portion 13b It may happen that the medal 2 passes through the passage 5 so as not to pass. At this time, the output of the detection coil 9 in the case of the former and the output of the detection coil 9 in the latter case largely fluctuate. That is, depending on the passing position of the medal 2 in the left-right direction, the output of the detecting coil 9 may fluctuate greatly. In contrast to this, in this embodiment, the output of the detecting coil 9 can be stabilized even if the medal 2 passes through the passage 5 in the left-right direction. That is, in this embodiment, it is possible to effectively suppress the fluctuation of the output value of the output signal S1 of the detecting coil 9 caused by the passing position of the medal 2 in the left-right direction, It is possible to effectively improve the identification accuracy of the outer diameter of the outer ring.

In the present embodiment, the convex portions 12c and 13c are convex portions 12c and 13c when viewed from the front-rear direction, regardless of which position of the medal 2 passes through the passage 5 in the left- It is possible to identify the material and the thickness of the medal 2 by the detecting coil 10 without being influenced by the outer diameter of the medal 2 because the whole of the medal 2 is formed so as to overlap with the medal 2. [ It becomes possible. Therefore, in this embodiment, it is possible to improve the identification accuracy of the material and the thickness of the medal 2. [

In this embodiment, the exciting coil 8 and the detecting coils 9, 10 are wound around the annular core 11 formed in a substantially quadrangular annular shape. Therefore, in this embodiment, leakage of the magnetic flux generated by the exciting coil 8 from the annular core 11 can be reduced, and as a result, a magnetic circuit with high efficiency is formed in the annular core 11 .

The convex portion 12a and the convex portion 13a formed in the same shape are arranged at the same position in the right and left direction and the convex portion 12b and the convex portion 13b formed in the same shape are arranged in the left- The convex portion 12c and the convex portion 13c, which are formed at the same position and formed in the same shape, are arranged at the same position in the left-right direction. Therefore, in this embodiment, it becomes possible to increase the density of the magnetic flux passing through each of the convex portion 13a, the convex portion 13b and the convex portion 13c.

In the present embodiment, the distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the front-rear direction is the distance between the right side end face of the convex portions 12a and 13a in the left- The distance L3 between the left end surface of the connecting core 14 and the distance L4 between the left end surface of the convex portions 12b and 13b in the left and right direction and the right end surface of the second connecting core 15 is shorter. The magnetic flux between the convex portion 12a and the convex portion 13a is leaked toward the first connection core 14 or the magnetic flux between the convex portion 12a and the convex portion 13a is leaked toward the first connection core 14 as shown by the double- It is possible to prevent the magnetic flux between the convex portion 12b and the convex portion 13b from leaking toward the second connection core 15. [ That is, in the present embodiment, a magnetic path is formed directly from the rear end face of the convex portion 12a to the first connection core 14, and the second connection core 15 is formed from the rear end face of the convex portion 12b. It is possible to suppress the formation of a magnetic path that directly goes into the magnetic pole. Therefore, in this embodiment, it is possible to increase the density of the magnetic flux passing through each of the convex portion 13a and the convex portion 13b.

In the present embodiment, the distance L2 between the convex portion 12c and the convex portion 13c in the anteroposterior direction is determined by the shortest distance between the convex portion 12c and the convex portion 13a and the shortest distance between the convex portion 12c and the convex portion 13c, Is shorter than the shortest distance of the portion (13b). Therefore, in the present embodiment, as shown by the broken line arrow in FIG. 9B, the magnetic flux between the convex portion 12c and the convex portion 13c is prevented from leaking toward the convex portions 13a and 13b . That is, in this embodiment, it is possible to suppress formation of a magnetic path from the rear end face of the convex portion 12c to the convex portions 13a and 13b. Therefore, in this embodiment, the density of the magnetic flux passing through the convex portion 13c can be increased.

In the present embodiment, the first end face, the second end face, the third end face, and the fourth end face have a distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the anteroposterior direction And is formed at a longer distance. The magnetic flux from the rear end face of the convex portions 12a and 12b to the first core 12 on the front side and from the front end face of the convex portions 13a and 13b to the second core 13 on the rear side It is possible to suppress the returning of the vehicle. The distance from the rear end face of the convex portion 12c in the front-rear direction to the first core 12 at the front side and the distance from the front end face of the convex portion 13c to the rear- The distance is formed to be longer than the distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the forward and backward directions. This makes it possible to reduce the distance from the rear end face of the convex portion 12c in the front-rear direction to the first core 12 on the front side and also to the second core 13 on the rear side from the front end face of the convex portion 13c It becomes possible to suppress the flux of the magnetic flux. Therefore, in this embodiment, it is possible to increase the magnetic flux density from the convex portion 12a to the convex portion 13a, the convex portion 12b to the convex portion 13b, and the convex portion 12c to the convex portion 13c .

In this embodiment, the exciting coil 8 and the detecting coils 9, 10 are wound around the annular core 11 formed in a substantially quadrangular annular shape. Therefore, even if the medal identifying device 1 is disposed in an external magnetic field oriented in an arbitrary direction in the XY plane constituted by the X direction and the Y direction, the magnet due to the external magnetic field is formed in the passage 5 It does not. For example, even if the medal identifying device 1 is disposed in an external magnetic field (arrow in Fig. 10) in which the direction of magnetic force lines is directed to the rear direction, as shown in Fig. 10, (Not shown). In other words, in this embodiment, it is possible to make the annular core 11 function as a magnetic shield. As a result, it is possible to suppress the deterioration of the identification accuracy of the medal 2 caused by the external magnetic field of the medal identifying device 1 It becomes. Even if the medal identifying device 1 is disposed in the external magnetic field facing the up and down direction (Z direction), the up and down direction is orthogonal to the magnetizing direction of the detecting coils 9 and 10, 1) is hardly influenced by an external magnetic field.

In this embodiment, the annular core 11 is formed in a substantially rectangular shape elongated in the left-right direction and the passage 5 formed in the inner peripheral side of the annular core 11 is formed into a rectangular shape elongated in the left-right direction. Therefore, in this embodiment, the width of the first core 12, the second core 13, the first connection core 14, and the second connection core 15 are secured while the annular core 11 is made compact Lt; / RTI > That is, in this embodiment, the widths of the first core 12, the second core 13, the first connection core 14, and the second connection core 15 are secured, It is possible to downsize the annular core 11 while preventing saturation of the magnetic flux. In this embodiment, since the annular core 11 is formed in a substantially rectangular annular shape, for example, when the annular core 11 is formed by punching a plurality of annular cores 11 from a single sheet of metal, , It is possible to reduce the loss of the material. In this embodiment, since the annular core 11 is formed in a substantially quadrangular annular shape, as compared with the case where the annular core 11 is formed in an annular shape, for example, The positioning of the core 11 is facilitated.

(Other Embodiments)

The above-described embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, but can be modified and changed without departing from the gist of the present invention.

In the above-described embodiment, the exciting coil 8 is wound on the convex portions 12a to 12c via the bobbin 20. [ In addition, for example, the exciting coil 8 may be wound directly on the convex portions 12a to 12c if it is subjected to predetermined insulation treatment. Similarly, the detecting coil 9 is wound on the convex portions 13a to 13c via the bobbin 21 and the detecting coil 10 is wound on the convex portion 13c with the bobbin 22 interposed therebetween , The detecting coil 9 may be wound directly on the convex portions 13a to 13c and the detecting coil 10 may be wound directly on the convex portion 13c.

In the above-described embodiment, the exciting coil 8 is formed so as to cover the upper and lower surfaces of the convex portions 12a to 12c, the right end surface of the convex portion 12a, and the left end surface of the convex portion 12b, 12c. 11 (A), the conductor constituting the exciting coil 8 is sequentially wound on the convex portion 12a, the convex portion 12c and the convex portion 12b, for example, And an exciting coil 8 may be constituted. That is, the exciting coil 8 may be wound around the convex portions 12a to 12c so as to cover the entire circumference of each of the convex portions 12a to 12c. In this case, the magnetic flux density between the convex portion 12c and the convex portion 13c can be increased.

The detection coil 9 is formed so as to cover the upper and lower surfaces of the convex portions 13a to 13c and the right end surface of the convex portion 13a and the left end surface of the convex portion 13b, 13c. 11 (A), the conductor constituting the detecting coil 9 is sequentially wound on the convex portion 13a, the convex portion 13c and the convex portion 13b, for example, And the detection coil 9 may be constituted. That is, the detecting coil 9 may be wound around the convex portions 13a to 13c so as to cover the entire circumference of each of the convex portions 13a to 13c. 11 (B), when the detecting coil 9 is constituted by sequentially winding the conductor constituting the detecting coil 9 on the convex portion 13a and the convex portion 13b do. That is, the detecting coil 9 may be wound around the convex portions 13a and 13b so as to cover the entire circumference of each of the convex portions 13a and 13b.

In the above-described embodiment, the first core 12, the second core 13, the first connecting core 14, and the second connecting core 15 are integrally formed. At least one of the first core 12, the second core 13, the first connection core 14 and the second connection core 15 is formed as a separate body, and the first core 12 The second core 13, the first connection core 14, and the second connection core 15 may be integrated. That is, the annular core 11 may not be integrally formed.

In the above-described embodiment, the magnetic sensor 4 has the annular core 11 formed in an annular shape. 12, the magnetic sensor 4 includes a first core 12, a second core 13, a first connection core 14, and a second core 12, instead of the annular core 11. [ And a core 51 having a gap (broken portion) G formed in at least one of the second connecting cores 15 may be provided. For example, the magnetic sensor 4 may have a core 51 having a cap G formed on the first connection core 14 as shown in Fig. 12 (A) The core 51 may be provided with the gap G in the second core 13 as shown in Fig. In this case, it is preferable that the interval W of the gap G is as narrow as possible so as to suppress the leakage of the magnetic flux from the gap G. That is, when the core 51 in which the gap G is formed is used in place of the annular core 11, it is preferable to use a substantially annular core 51 in which a gap G with a narrow gap W is formed. Concretely, it is preferable that the gap G having a narrow gap W is shorter than the distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the front-rear direction.

12 (B), when the direction of the magnetic flux is directed from the convex portions 12a to 12c to the convex portions 13a to 13c in the case where the core 51 in which the gap G is formed is used, It is preferable that the gap G is formed in the second core 13. In this case, On the other hand, when current is supplied to the exciting coil 8 so that the direction of the magnetic flux is the direction from the convex portions 13a to 13c to the convex portions 12a to 12c, As shown in Fig. This makes it possible to suppress the decrease in the magnetic flux density between the convex portions 12a to 12c and the convex portions 13a to 13c even when the core 51 in which the gap G is formed is used. The gap G may be filled with a non-magnetic material.

The distance L1 between the right end face of the convex portions 12a and 13a and the left end face of the convex portions 12b and 13b in the right and left direction is equal to the width of the passage 5 in the left- have. In addition, for example, the distance L1 may be larger than the width of the passage 5 in the left-right direction. The distance L1 may be narrower than the width of the passage 5 in the lateral direction as long as it is equal to or larger than the outer diameter of the medal 2. [ The first core 12 and the second core 13 are formed in the same shape and the right end face of the convex portion 12a and the left end face of the left end face of the convex portion 12b The distance between the right end face of the convex portion 13a and the left end face of the convex portion 13b is equal to the distance between the right end face of the convex portion 12a and the left end face of the convex portion 13b. The distance in the left and right direction of the left end face and the distance in the right and left direction of the left end face of the convex portion 13b may be different from the distance between the right end face of the convex portion 13a and the left end face of the convex portion 13b.

In the above-described aspect, the convex portions 12a to 12c are formed in a rectangular shape. In addition, for example, the convex portions 12a to 12c may be formed in a trapezoidal shape in which the width in the left-right direction becomes narrower or wider as it goes toward the rear side. Similarly, although the convex portions 13a to 13c are formed in a rectangular shape, the convex portions 13a to 13c may be formed in a trapezoidal shape in which the width in the lateral direction is narrowed or widened toward the front side. In this case, the distance between the rear end of the right end surface of the convex portion 12a (i.e., the second core 13 side end portion) and the rear end portion of the left end surface of the convex portion 12b in the left- And the left end of the convex portion 13b and the front end of the right end face of the convex portion 13a (i.e., the first core 12 side end portion) The convex portions 13a and 13b are formed so that the distance in the lateral direction of the front end portion of the side surface is equal to or greater than the outer diameter of the medal 2. [ More specifically, the convex portion 12a is formed so that the distance between the rear end of the right end face of the convex portion 12a and the left end face of the rear end portion of the left end face of the convex portion 12b is equal to or greater than the width of the passage 5 in the left- And the distance between the front end of the right end face of the convex portion 13a and the left end face of the left end face of the convex portion 13b in the left and right direction is smaller than the width The convex portions 13a and 13b are formed.

In this case, the distance between the rear end of the right end face of the convex portion 12a in the left-right direction and the left end face of the first connecting core 14, the distance between the rear end of the convex portion 13a in the right- The distance between the front end of the end face and the left end face of the first connecting core 14, the distance between the rear end of the left end face of the convex portion 12b in the left- The distance between the front end of the left end face of the convex portion 13b and the right end face of the second connection core 15 in the forward and backward directions and the convex portions 12a to 12c in the left- The convex portions 12a, 12b, 13a, and 13b are formed such that the distance L2 between the two adjacent convex portions 13a to 13c is shortened.

In this case, the distance between the rear end of the right end surface of the convex portion 12a in the left-right direction and the rear end of the right end surface of the convex portion 12b, The distance between the front end of the end face of the convex portion 12b and the front end of the right end face of the convex portion 13b and the distance between the rear end of the left end face of the convex portion 12a and the rear end of the left end face of the convex portion 12b The distance between the front end of the left end face of the convex portion 13a in the left and right direction and the front end of the left end face of the convex portion 13b is smaller than the outer diameter of the medal 2, , 13a and 13b are formed.

In the above-described embodiment, three convex portions 12a to 12c are formed in the first core 12. In addition, for example, the number of convex portions formed in the first core 12 may be one, two, or four or more. When the number of convex portions formed on the first core 12 is two or four or more, the right end surface of the convex portion formed on the rightmost side is the first end surface disposed on the rightmost side (first direction side) And the left end surface of the convex portion formed at the leftmost side is the second end surface disposed at the leftmost side (second direction side). When the number of the convex portions formed in the first core 12 is one, the right end surface of the one convex portion is the first end surface disposed on the rightmost side (first direction side) And the left end surface of the portion becomes the second end surface disposed at the leftmost side (second direction side).

In the above-described embodiment, three convex portions 13a to 13c are formed in the second core 13. In addition, for example, the number of convex portions formed in the second core 13 may be two or four or more. In this case, the right end surface of the convex portion formed on the rightmost side is the third end surface disposed on the rightmost side (first direction side), and the left end surface of the convex portion formed on the leftmost side is the leftmost (I.e., the second end side). In the above-described embodiment, the magnetic sensor 4 is provided with the detecting coil 10, but the magnetic sensor 4 may not be provided with the detecting coil 10. In this case, the number of convex portions formed in the second core 13 may be one. When the number of the convex portions formed in the second core 13 is one, the right end surface of the one convex portion becomes the third end surface disposed at the rightmost side (first direction side), and the left end And the end surface is the fourth end surface disposed at the leftmost side (second direction side).

In the above-described embodiment, the annular core 11 is formed in a substantially rectangular annular shape. In addition, for example, the annular core 11 may be formed as an annular, elliptical, or long elliptical annulus. Further, the annular core 11 may be formed in a polygonal annulus other than a quadrangular annulus.

In the above-described embodiment, the magnetic sensor 4 is provided with two detection coils 9, 10. In addition, for example, the magnetic sensor 4 may be provided with three or more detecting coils. In this case, a plurality of convex portions may be formed in the second core 13 depending on the number of detecting coils.

In the above-described aspect, the medal identifying device 1 is used in a slot machine. In addition, for example, the medal identifying device 1 may be used in a medal buyer or a medal counter. Although the embodiment of the coin-operated apparatus for identifying a to-be-watched body of the present invention has been described by taking the medal identifying device 1 for identifying a medal 2 used in a slot machine as an example, The coin-like body to be detected, for example, may be a device for identifying a coin-shaped object to be inspected such as a medal to be used in a game machine. Further, the coin-shaped object to be detected in the present invention is not limited to a medal used in a slot machine, a game machine, or the like, and may be cured. The medal purchasing device is a device for purchasing a medal by putting in cash, and is installed in a slot machine or a hall entrance. The medal counter is also a device for counting the number of medals that are gathered from each slot machine. This medal counter is, for example, one set for each slot machine of a predetermined number (for example, each island is installed), and medals 2 collected from a plurality of slot machines constituting an island provided with medal counters ). Further, the medal counter is, for example, a batch concentrator for collecting the medals 2 collected for each island and counting them. The medal counter is also a device for counting the number of medals 2, for example, to replace the medal 2 with a prize.

1: Medal identifying device (coin-shaped detecting device identifying device)
2: Medal (body to be detected)
5: By passage
8: Female coil
9: detection coil (first detection coil)
10: detecting coil (second detecting coil)
11: annular core
12: First core
12a: convex portion (female-side convex portion, first female-side convex portion)
12b: convex portion (excitation-side convex portion, second excitation-side convex portion)
12c: convex portion (excitation-side convex portion, third-excitation-side convex portion)
13: second core
13a: convex portion (detection side convex portion, first detection side convex portion)
13b: convex portion (detection side convex portion, second detection side convex portion)
13c: convex portion (detection side convex portion, third detection side convex portion)
14: first connection core
15: second connection core
X: orthogonal direction
X1: First direction
X2: second direction
Y: thickness direction of the body to be detected
Z: direction of passage of the object to be detected

Claims

A first core disposed on one side in the thickness direction of the member to be detected which passes through the passage, and a second core disposed on one side in the thickness direction of the member to be detected, And a second core disposed on the other side in the thickness direction,
The first core is provided with one or more excitation-side convex portions projecting toward the second core,
Wherein the second core is formed with one or more detection side convex portions protruding toward the first core,
The exciting coil is wound on the excitation-side convex portion,
The detection coil is wound on the detection-side convex portion,
Wherein the passage between the excitation-side convex portion and the detection-side convex portion in the thickness direction of the to-be-
And a direction perpendicular to the thickness direction of the to-be-detected object passing through the passage is referred to as an orthogonal direction, and one side in the orthogonal direction is referred to as a first direction, Side face of the excitation-side convex portion is referred to as a second end face, the end face of the excitation-side convex portion on the first direction side is referred to as a first end face, the end face of the excitation-side convex portion on the second direction side is referred to as a second end face, Side surface of the detection-side convex portion is referred to as a third end surface and the end surface of the detection-side convex portion on the second direction side is referred to as a fourth end surface,
And the second core side end portion of the first end face most disposed on the first direction side and the second core side end portion of the second end face most disposed on the second direction side, Side end of the first end side of the first end side of the first end side of the first end side of the first end side of the third end surface disposed at the side closest to the first direction, Wherein the distance between the to-be-detected object and the to-be-detected object is equal to or larger than the outer diameter of the to-be-inspected object.

2. The semiconductor device according to claim 1, wherein the second core side end portion of the first end surface most disposed on the first direction side and the second core side end portion of the second end surface most disposed on the second direction side The distance in the orthogonal direction and the distance between the first core side end portion of the third end face most disposed on the first direction side and the first core side end portion of the fourth end face, Wherein the distance in the orthogonal direction of the side end portion is equal to or larger than the width of the passage in the orthogonal direction.

3. The detection coil according to claim 2, wherein as the detection coil, a first detection coil and a second detection coil are provided,
Wherein the second core is provided with a detection-side convex portion, a first detection-side convex portion disposed on the first direction side end of the passage, and a second detection side convex portion disposed on the second direction side end of the passage, And a third detection-side convex portion disposed between the first detection-side convex portion and the second detection-side convex portion,
The first detecting coil is wound on the first detection-side convex portion and the second detection-side convex portion, or on the first detection-side convex portion, the second detection-side convex portion and the third detection-side convex portion ,
The second detecting coil is wound on the third detection side convex portion,
Side end of the first detection-side convex portion, which is the third end face most disposed on the first direction side, and the fourth core-side end portion of the fourth detection- The distance in the direction perpendicular to the first core side end of the end face of the second detection side projection on the second direction side which is the end face is equal to or larger than the width of the passage in the orthogonal direction,
The first core side end portion of the third detection side convex portion is formed so that, when viewed from the thickness direction of the to-be- And the entire first core-side end of the detection-side convex portion is formed so as to overlap with the to-be-detected body.

The connector according to any one of claims 1 to 3, further comprising: a first connection core connecting the end of the first core and the end of the second core in the first direction; A second connection core connecting the end of the first core and the end of the second core, and an annular annular core formed of the first core and the second core, Body identification device.

The connector according to claim 4, wherein a distance in the perpendicular direction between the second core-side end portion of the first end face disposed at the most side in the first direction and the first connecting core is located at the most side of the first direction The distance between the first end of the third end and the first connecting core in the perpendicular direction of the third end face, and the distance from the second end of the second end, And a distance in the perpendicular direction between the second connection core and the second connection side of the first end side of the fourth end face which is disposed closest to the second direction side, Wherein the distance between the excitation-side object and the detection-side convex portion is longer than the distance between the excitation-side convex portion and the detection-side convex portion in the thickness direction of the object to be detected.

The magnetic resonance imaging apparatus according to claim 1 or 2, further comprising a first detecting coil and a second detecting coil as the detecting coil,
Wherein the second core is provided with a detection-side convex portion, a first detection-side convex portion disposed on the first direction side end of the passage, and a second detection side convex portion disposed on the second direction side end of the passage, And a third detection-side convex portion disposed between the first detection-side convex portion and the second detection-side convex portion,
The first detecting coil is wound on the first detection-side convex portion and the second detection-side convex portion, or on the first detection-side convex portion, the second detection-side convex portion and the third detection-side convex portion ,
The second detecting coil is wound on the third detection side convex portion,
Wherein the first core includes a first excitation-side convex portion arranged at the same position as the first detection-side convex portion in the orthogonal direction as the excitation-side convex portion, and a second excitation- And a third excitation-side convex portion disposed at the same position as the third detection-side convex portion in the orthogonal direction is provided on the second detection- Body identification device.

7. The image pickup apparatus according to claim 6, wherein a distance between the end face on the second direction side of the first detection side projection and the shortest distance between the third excitation side projection and the second detection side The shortest distance between the end face on the first direction side of the convex portion and the third excitation-side convex portion is longer than the distance between the third detection-side convex portion and the third excitation-side convex portion in the thickness direction of the to-be- And the coin-shaped object to be detected is identified.

7. The connector according to claim 6, wherein the second core-side end portion of the end face on the first direction side of the first excitation-side convex portion as the first end face and the second core-side end portion of the second excitation- Side end surface of the first excitation-side protrusion, which is the second end surface, of the end surface of the first core-side end of the first core- And a distance in the direction perpendicular to the second core side end portion of the end face on the second direction side of the second excitation-side convex portion being the second end face, the distance between the first detection- Side end of the second detection-side convex portion, which is the third end surface, of the end surface on the first direction side of the first detection-side convex portion in the direction perpendicular to the first core- And the distance between the first detection-side convex portion and the second detection- Side end of the second detection-side convex portion in the second direction-side end face and the first-core-side end portion of the second detection-side convex portion in the second direction side in the orthogonal direction Is smaller than the outer diameter of the object to be detected.

The apparatus according to any one of claims 1 to 4, further comprising: a first detection-side convex portion having a surface and a back surface of the first detection-side convex portion, a surface and a back surface of the second detection- A cylindrical first detection bobbin covering the back surface, the third end surface, and the fourth end surface;
The surface and the back surface of the third detection side convex portion in the passing direction of the detected object, the end face of the third detection side convex portion in the orthogonal direction on the third end face side, And a cylindrical second detection bobbin which covers the end surface of the third detection side projection on the fourth end surface side,
The first detection coil is wound on the first detection-side convex portion, the second detection-side convex portion, and the third detection-side convex portion via the first detection bobbin,
Wherein the second detection coil is wound on the third detection side convex portion via the second detection bobbin.

The apparatus according to claim 1, wherein a distance between the first end face, the second end face, the third end face, and the fourth end face in the thickness direction of the to-be- Wherein the distance between the excitation-side convex portion and the detection-side convex portion is longer than the distance between the excitation-side convex portion and the detection-side convex portion in the thickness direction of the sieve.

The apparatus according to claim 4, wherein the annular core is formed integrally with a single metal plate.

5. The coin-like member according to claim 4, wherein a part of the annular core is provided with a gap which is shorter than a distance between the excitation-side projection and the detection-side projection in the thickness direction of the member to be detected. Detector identification device.

4. The electromagnetic actuator according to claim 3, wherein the first core includes: a first excitation-side projection disposed at the same position as the first detection-side convex portion in the orthogonal direction as the excitation-side convex portion; A second excitation-side convex portion disposed at the same position as the second detection-side convex portion, and a third excitation-side convex portion arranged at the same position as the third detection side convex portion in the orthogonal direction To-be-detected object.

And a third detection-side convex portion which is the third end-side surface of the second detection-side convex portion, The shortest distance between the end face on the first direction side of the convex portion and the third excitation-side convex portion is longer than the distance between the third detection-side convex portion and the third excitation-side convex portion in the thickness direction of the to-be- And the coin-shaped object to be detected is identified.

14. A method according to claim 13, wherein said second core side end portion of the end face on the first direction side of said first excitation-side projected portion which is said first end face and said second core-side end portion of said second excitation- Side end surface of the first excitation-side protrusion, which is the second end surface, of the end surface of the first core-side end of the first core- And a distance in the direction perpendicular to the second core side end portion of the end face on the second direction side of the second excitation-side convex portion being the second end face, the distance between the first detection- Side end of the second detection-side convex portion, which is the third end surface, of the end surface on the first direction side of the first detection-side convex portion in the direction perpendicular to the first core- And the first detection-side convex portion, which is the fourth end surface, Side end of the second detection-side convex portion in the second direction-side end face and the first-core-side end portion of the second detection-side convex portion in the second direction side in the orthogonal direction Is smaller than the outer diameter of the object to be detected.