WO2014080880A1 - Dispositif d'identification d'objet en forme de pièce de monnaie devant être détecté - Google Patents

Dispositif d'identification d'objet en forme de pièce de monnaie devant être détecté Download PDF

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Publication number
WO2014080880A1
WO2014080880A1 PCT/JP2013/081105 JP2013081105W WO2014080880A1 WO 2014080880 A1 WO2014080880 A1 WO 2014080880A1 JP 2013081105 W JP2013081105 W JP 2013081105W WO 2014080880 A1 WO2014080880 A1 WO 2014080880A1
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WIPO (PCT)
Prior art keywords
convex portion
detection
core
end surface
side convex
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Application number
PCT/JP2013/081105
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English (en)
Japanese (ja)
Inventor
百瀬　正吾
Original Assignee
日本電産サンキョー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電産サンキョー株式会社 filed Critical 日本電産サンキョー株式会社
Priority to KR1020157011062A priority Critical patent/KR101741932B1/ko
Priority to CN201380060343.0A priority patent/CN104813370A/zh
Publication of WO2014080880A1 publication Critical patent/WO2014080880A1/fr

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/08—Testing the magnetic or electric properties

Definitions

  • the present invention relates to a coin-shaped detected object identification device for identifying authenticity, good or bad of a coin-shaped detected object.
  • a medal selector used in a slot machine is known (for example, see Patent Document 1).
  • the medal selector described in Patent Document 1 is a device for selecting medals inserted from a medal insertion slot, and discharges illegal medals having a small size to a medal tray and sends out regular medals to a medal tank. Yes.
  • the medal selector is formed with a medal passage through which medals inserted from the medal insertion slot pass, and the medal selector sorts medals using the medal passage.
  • a coin identification sensor used in a vending machine or a ticket machine is known (for example, see Patent Document 2).
  • the coin identification sensor described in Patent Document 2 includes a magnetic material / thickness sensor for detecting the material and 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 transport path in a direction orthogonal to the thickness direction of the coin passing through the coin transport path and the coin transport direction, and the diameter sensor is used to detect the coin passing through the coin transport path. It is arranged on the other side of the coin conveyance path in a direction orthogonal to the thickness direction and the coin conveyance direction.
  • the diameter sensor includes a core, an excitation coil, and a detection coil.
  • the core of the diameter sensor includes two projecting portions that project toward the material / thickness sensor and a connecting portion that connects the two projecting portions.
  • the excitation coil and the detection coil of the diameter sensor are wound around the connecting 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 includes two projecting portions that project toward the diameter sensor and a connecting portion that connects the two projecting portions.
  • a protruding portion that protrudes in the thickness direction of the coin passing through the coin conveyance path is formed on the leading end side of each of the two protruding portions.
  • the excitation coil and detection coil of the material / thickness sensor are wound around each of the two protrusions. That is, the excitation coil and the detection coil are wound around one protrusion, and the excitation coil and the detection coil are wound around the other protrusion.
  • the material / thickness sensor has a position fluctuation correction unit for detecting the position fluctuation of the diameter sensor, and the excitation coil and the detection coil constituting the position fluctuation correction unit are connected to the core of the material / thickness sensor. It is wound around the part. Further, a step portion constituting a position variation correction unit is formed on the base end side of the protruding portion of the core of the material / thickness sensor.
  • a protrusion and a step are formed on the protrusion of the core of the material / thickness sensor.
  • the excitation coil of the material / thickness sensor is wound around each of the two protrusions
  • the detection coil of the material / thickness sensor is wound around each of the two protrusions.
  • the excitation coil and the detection coil of the diameter sensor are wound around the connecting portion of the core of the diameter sensor, and the excitation coil that constitutes the position variation correction unit for detecting the position variation of the diameter sensor and The detection coil is wound around the connecting portion of the core of the material / thickness sensor.
  • the shape of the core of the material / thickness sensor is complicated, and there are many winding positions of the exciting coil and the detection coil with respect to the core. The configuration becomes complicated.
  • an object of the present invention is to provide a coin-shaped detected object identification device capable of suppressing a decrease in the identification accuracy of a coin-shaped detected object over time and capable of simplifying the configuration. There is to do.
  • a coin-shaped detected object identification device includes a passage through which a coin-shaped detected object passes, an excitation coil and a detection coil, and a detected object that passes through the passage.
  • the first core disposed on one side in the thickness direction of the first and second cores disposed on the other side in the thickness direction of the detected object, and the first core is excited to project toward the second core
  • One or more side protrusions are formed, and one or more detection side protrusions projecting toward the first core are formed on the second core, and the excitation coil is an excitation side protrusion.
  • the detection coil is wound around the detection-side convex portion, and a passage is formed between the excitation-side convex portion and the detection-side convex portion in the thickness direction of the detected object.
  • the direction orthogonal to the passing direction of the detected object passing through and the thickness direction of the detected object is the orthogonal direction, and the orthogonal direction One side is defined as the first direction, the other side in the orthogonal direction is defined as the second direction, the end surface on the first direction side of the excitation side convex portion is defined as the first end surface, and the end surface on the second direction side of the excitation side convex portion is defined as the second direction.
  • the first end surface that is arranged closest to the first direction side is defined as the end surface, where the end surface on the first direction side of the detection side convex portion is the third end surface, and the end surface on the second direction side of the detection side convex portion is the fourth end surface.
  • the distance in the orthogonal direction between the second core side end of the first core and the second end side of the second end surface arranged closest to the second direction side, and the first of the third end surface arranged closest to the first direction side is equal to or greater than the outer diameter of the detection target.
  • an excitation-side convex portion that is formed on the first core and on which the excitation coil is wound and an excitation-side convex portion that is formed on the second core and on which the detection coil is wound.
  • the detection-side convex portion in the thickness direction of the detection object there is a passing path through which the coin-shaped detection object passes. Therefore, in the present invention, it is possible to identify the detection object passing through the passage by the magnetic detection mechanism including the excitation coil, the detection coil, the first core, the second core, and the like. That is, in the present invention, it is possible to identify the detection target by the non-contact type detection mechanism.
  • the excitation coil is wound around the excitation side convex portion protruding toward the second core
  • the detection coil is wound around the detection side convex portion protruding toward the first core. It is possible to simplify the configuration of the first core and the second core, and to reduce the number of winding portions of the exciting coil around the first core and the number of winding portions of the detection coil around the second core. Therefore, in the present invention, it is possible to simplify the configuration of the coin-shaped detected object identification device.
  • the distance in the orthogonal direction between the second core side end of the first end face arranged closest to the first direction side and the second core side end of the second end face arranged closest to the second direction side, and The distance in the orthogonal direction between the first core side end of the third end surface arranged closest to the first direction side and the first core side end of the fourth end surface arranged closest to the second direction side is in the orthogonal direction It is preferable that the width is equal to or greater than the width of the passage.
  • the coin-shaped detected object identification device includes a first detection coil and a second detection coil as detection coils, and the second core has a first detection coil as a detection-side convex portion.
  • the second detection coil is wound around the third detection side convex portion, and is wound around the third detection side convex portion, and is the first end surface that is the third end face that is disposed closest to the first direction side.
  • the distance in the orthogonal direction is equal to or greater than the width of the passage in the orthogonal direction, and the first core side end of the third detection-side convex portion passes through which position of the passage in the orthogonal direction.
  • the first core side end of the third detection side convex portion is formed and arranged so as to overlap the detection target when viewed from the thickness direction of the detection target.
  • the first core-side end of the third detecting-side convex portion Since the first core side end of the third detection-side convex portion is formed and arranged so that the entirety of the first detection coil overlaps the detection object, the second detection coil is not affected by the outer diameter of the detection object. This makes it possible to identify the material and thickness of the object to be detected. Therefore, it becomes possible to improve the identification accuracy of the material and thickness of the detected object.
  • the coin-shaped object identification device includes a first connecting core that connects an end of the first core and an end of the second core in the first direction, and an end of the first core in the second direction. It is preferable to provide an annular annular core composed of a second connecting core connecting the end of the second core, the first core, and the second core. If comprised in this way, it will become possible to reduce the leakage of the magnetic flux which an exciting coil generates from an annular core. Therefore, an efficient magnetic circuit can be formed on the annular core. Moreover, if comprised in this way, it will become possible to function an annular core as a magnetic shield, and it will become possible to suppress the fall of the identification accuracy of the to-be-detected body resulting from an external magnetic field.
  • the distance in the orthogonal direction between the side end and the first connecting core, the distance in the orthogonal direction between the second core side end of the second end surface arranged closest to the second direction side and the second connecting core, and The distance in the orthogonal direction between the first core side end of the fourth end surface arranged closest to the second direction side and the second connecting core is the excitation side convex portion and the detection side convex portion in the thickness direction of the detection target. It is preferable that it is longer than this distance.
  • the coin-shaped detected object identification device includes a first detection coil and a second detection coil as detection coils, and the second core has a first detection coil as a detection-side convex portion.
  • the second detection coil is wound around the third detection side convex portion, and the first core is first excited in the orthogonal direction as the excitation side convex portion.
  • Magnetic flux passing through the first detection side convex portion because the excitation side convex portion and the third excitation side convex portion arranged at the same position as the third detection side convex portion in the orthogonal direction are formed on the first core.
  • the density of the magnetic flux passing through the second detection side convex portion, and the density of the magnetic flux passing through the third excitation side convex portion can be increased.
  • the shortest distance between the end surface on the one direction side and the third excitation side convex portion may be longer than the distance between the third detection side convex portion and the third excitation side convex portion in the thickness direction of the detection target. preferable. If comprised in this way, it will become possible to suppress that the magnetic flux between a 3rd excitation side convex part and a 3rd detection side convex part leaks toward a 1st detection side convex part or a 2nd detection side convex part. Become. That is, the leakage of magnetic flux between the third excitation side convex portion and the third detection side convex portion can be suppressed, and the density of the magnetic flux passing through the third excitation side convex portion can be increased. .
  • the distance in the direction orthogonal to the core side end, the second direction of the second excitation side convex portion as the second end surface and the second core side end of the second direction end surface of the first excitation side convex portion as the second end surface Distance in the direction orthogonal to the second core side end of the side end face, the first core side end of the first direction side end face of the first detection side convex portion being the third end face, and the second detection side being the third end face.
  • the distance in the direction orthogonal to the first core side end of the end surface on the first direction side of the convex portion, and the first core side end of the end surface on the second direction side of the first detection side convex portion that is the fourth end surface and the first end It is preferable that the distance in the direction orthogonal to the
  • a cylindrical second detection bobbin that covers an end surface on the third end surface side and an end surface on the fourth end surface side of the third detection-side convex portion in the orthogonal direction, and the first detection coil is a first detection bobbin.
  • the second detection coil is wound around the first detection side convex portion, the second detection side convex portion, and the third detection side convex portion, and the second detection coil is third detected via the second detection bobbin. It is preferable to be wound around the side protrusion.
  • the distance between the first end surface, the second end surface, the third end surface, and the fourth end surface in the thickness direction of the detection target is the excitation side convex portion and the detection side convex portion in the thickness direction of the detection target body. It is preferable that the distance is longer than the distance between and. If comprised in this way, it will become possible to suppress that the magnetic flux between an excitation side convex part and a detection side convex part wraps around to an excitation side convex part, and a magnetic flux leaks. That is, leakage of magnetic flux between the excitation side convex portion and the detection side convex portion can be suppressed, and an efficient magnetic circuit can be formed on the annular core.
  • the annular core is preferably formed integrally from a single metal plate.
  • a gap shorter 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 is formed in a part of the annular core.
  • the coin-shaped detected object identification device of the present invention it is possible to suppress a decrease in the identification accuracy of the coin-shaped detected object over time and simplify the configuration of the device. It becomes possible.
  • FIG. 4 is a perspective view of a state where an excitation coil, a first detection coil, and a bobbin are removed from the state shown in FIG. 3.
  • FIG. 3 It is a perspective view of the annular core shown in FIG.
  • FIG. 3 It is a top view of the cyclic
  • FIG. It is a circuit block diagram of the coin-shaped to-be-detected object identification device shown in FIG.
  • FIG. It is a figure for demonstrating the output signal from the coil for a detection shown in FIG. It is a figure for demonstrating the effect of the coin-shaped to-be-detected body identification device shown in FIG. It is a figure for demonstrating the effect of the coin-shaped to-be-detected body identification device shown in FIG. It is a top view for demonstrating the coil for excitation and the coil for detection concerning other embodiment of this invention. It is a top view for demonstrating the core concerning other embodiment of this invention.
  • FIG. 1 is a perspective view of a coin-shaped object identification device 1 according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the medal 2 shown in FIG.
  • FIG. 3 is a perspective view of a state in which the case body 3 is removed from the coin-shaped detected object identification device 1 shown in FIG.
  • the coin-shaped detected object identification device 1 of this embodiment is a device for identifying a medal 2 that is a coin-shaped detected object, and is used by being mounted in a slot machine (not shown). That is, the coin-shaped object identification device 1 of this embodiment is a device for identifying whether or not the medal 2 inserted from the medal slot of the slot machine is genuine. Therefore, hereinafter, the coin-shaped detected object identification device 1 of this embodiment is referred to as a “medal identification device 1”. As illustrated in FIGS. 1 and 3, the medal identification device 1 includes a case body 3 and a magnetic sensor 4 accommodated in the case body 3. In addition, a passage 5 through which the medal 2 passes is formed inside the medal identification device 1.
  • the medal 2 is formed of a magnetic metal material and is formed in a disc shape. As shown in FIG. 2, an edge 2 a that protrudes to both sides in the thickness direction of the medal 2 is formed at the outer peripheral end of the medal 2.
  • the edging portion 2a is formed over the entire circumference of the medal 2 and is formed in an annular shape.
  • the case body 3 is formed in a rectangular parallelepiped box shape. On one side surface (upper surface in FIG. 1) of the case body 3, a slit-shaped passage hole 3a through which the medal 2 passes is formed. A slit-like passage hole through which the medal 2 passes is also formed on a side surface (lower surface in FIG. 1) parallel to the side surface on which the passage hole 3a is formed. The passage hole and the passage hole 3 a are connected to the passage 5.
  • a magnetic member 6 formed in a flat plate shape is fixed to each of the four side surfaces orthogonal to the side surface where the passage 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 identification device 1.
  • the case body 3 is fixed with a guide member (not shown) for guiding the medal 2 to the passage hole 3a.
  • the magnetic sensor 4 includes an excitation coil 8 and detection coils 9 and 10, and an annular core 11 around which the excitation coil 8 and detection coils 9 and 10 are wound.
  • the annular core 11 is made of a magnetic material.
  • the annular core 11 is formed of an iron-based magnetic material such as ferrite, amorphous, or permalloy.
  • the annular core 11 is formed in a flat plate shape.
  • FIG. 4 is a perspective view showing a state where the exciting coil 8, the detecting coil 9, and the bobbins 20 and 21 are removed from the state shown in FIG.
  • FIG. 5 is a perspective view of the annular core 11 shown in FIG.
  • FIG. 6 is a plan view of the annular core 11 shown in FIG.
  • FIG. 7 is a circuit block diagram of the coin-shaped detected object identification device 1 shown in FIG.
  • FIG. 8 is a diagram for explaining the output signal S1 from the detection coil 9 and the output signal S2 from the detection coil 10 shown in FIG.
  • each of the three directions orthogonal to each other is defined as an X direction, a Y direction, and a Z direction.
  • the X direction is the left-right direction
  • the Y direction is the front-rear direction
  • the Z direction is the up-down direction.
  • the X1 direction side is the “right” side
  • the X2 direction side is the “left” side
  • the Y1 direction side is the “front” side
  • the Y2 direction side is the “rear (back)” side.
  • the medal identification device 1 is arranged so that the thickness direction of the annular core 11 matches the vertical direction.
  • the medal 2 passes through the passage 5 in the thickness direction of the annular core 11.
  • the vertical direction is the passing direction of the medal 2 passing through the passage 5.
  • the front-rear direction is the thickness direction of the medal 2 that passes through the passage 5.
  • the left-right direction of this embodiment is an orthogonal direction orthogonal to the passing direction of the medal 2 and the thickness direction of the medal 2, the right side is one side of the orthogonal direction, and the left side is the other side of the orthogonal direction. .
  • the magnetic sensor 4 includes the excitation coil 8 and the detection coils 9 and 10 and the annular core 11 around which the excitation coil 8 and the detection coils 9 and 10 are wound.
  • the annular core 11 is formed in an annular shape. Specifically, the annular core 11 is formed in a substantially square annular shape that is 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-right direction, and constitutes a rear side portion of the annular core 11 and the first core 12.
  • a substantially linear second core 13 arranged in parallel; a linear first connecting core 14 connecting the right end of the first core 12 and the right end of the second core 13 and arranged in parallel with the front-rear direction; It is composed of a linear second connecting core 15 that connects the left end of the first core 12 and the left end of the second core 13 and is arranged in parallel with the first connecting core 14.
  • the annular core 11 of this embodiment is formed by press punching, and the first core 12, the second core 13, the first connection core 14, and the second connection core 15 are integrally formed.
  • 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.
  • the annular core 11 is formed in a line-symmetric shape with respect to a center line CL1 parallel to the left-right direction passing through the center position of the annular core 11 in the front-rear direction, and in the left-right direction. It is formed in a line-symmetric shape with respect to a center line CL2 parallel to the front-rear direction passing through the center position of the annular core 11.
  • the first core 12 is formed with convex portions 12a, 12b, and 12c as excitation-side convex portions that protrude 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 surfaces (that is, the front end surfaces) of the convex portions 12a to 12c are parallel to the left-right direction, and the left and right end surfaces of the convex portions 12a to 12c are parallel to the front-rear direction.
  • the rear end surfaces of the convex portions 12a to 12c are arranged in the same plane perpendicular to the front-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.
  • the right end surfaces of the convex portions 12a to 12c are first end surfaces
  • the left end surfaces of the convex portions 12a to 12c are second end surfaces.
  • the first end surface and the second end surface 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 front-rear direction.
  • the convex portion 12a is disposed on the right end side, 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.
  • the convex part 12c is arranged so that the center of the convex part 12c in the left-right direction and the center of the first core 12 coincide with each other, and the convex part 12a and the convex part 12b have the center line CL2 as an axis of symmetry. It is arranged at a line symmetrical position.
  • 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-symmetric shape with respect to the center line CL2.
  • the convex portion 12a is a first excitation side convex portion
  • the convex portion 12b is a second excitation side convex portion
  • the convex portion 12c is a third excitation side convex portion.
  • a gap is formed between the convex portion 12a and the first connecting core 14 (specifically, between the right end surface of the convex portion 12a and the left end surface of the first connecting core 14).
  • a gap is formed between the portion 12b and the second connecting core 15 (specifically, between the left end surface of the convex portion 12b and the right end surface of the second connecting core 15).
  • a gap is formed between the convex portion 12a and the convex portion 12c (specifically, between the left end surface of the convex portion 12a and the right end surface of the convex portion 12c), and the convex portion 12b.
  • a gap is formed between the protrusion 12c and the protrusion 12c (specifically, between the right end face of the protrusion 12b and the left end face of the protrusion 12c).
  • the first core 12 is formed in a line-symmetric shape with respect to the center line CL2, and the gap between the convex portion 12a and the first connecting core 14, and the convex portion 12b and the second connecting core 15 are formed.
  • 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 surface 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 between the convex portion 12a and the first connecting core 14 and the convex portion. It arrange
  • the second core 13 is formed in the same shape as the first core 12, and is disposed at a line-symmetrical position with the central axis CL1 as the symmetry axis. Therefore, the second core 13 is formed with convex portions 13a, 13b, and 13c as detection-side convex portions that project 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 surfaces (that is, the front end surfaces) of the convex portions 13a to 13c are arranged in the same plane orthogonal to the front-rear direction. .
  • the right end surface of the convex portions 13a to 13c is the third end surface
  • the left end surface of the convex portions 13a to 13c is the fourth end surface.
  • the third end surface and the fourth end surface 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 front-rear direction.
  • the convex portion 13a is arranged at the same position as the convex portion 12a
  • the convex portion 13b is arranged at the same position as the convex portion 12b
  • the convex portion 13c is arranged at the same position as the convex portion 12c.
  • the second core 13 is formed in a line-symmetric shape with respect to the center line CL2.
  • the convex part 13a of this form is a 1st detection side convex part
  • the convex part 13b is a 2nd detection side convex part
  • the convex part 13c is a 3rd detection side convex part.
  • a gap is formed between the convex portion 13 a and the first connecting core 14, and the convex portion 13 a and the first connecting core 14 are provided between the convex portion 13 b and the second connecting core 15.
  • a gap having the same size as the gap is formed.
  • a gap is formed between the convex portion 13a and the convex portion 13c, and the same size as the gap between the convex portion 13a and the convex portion 13c is formed between the convex portion 13b and the convex portion 13c.
  • a gap is formed.
  • the rear end surface 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 is the convex portion 13a and the first connecting core 14. And the rear end surface of the second core 13 between the convex portion 13b and the second connecting core 15.
  • a passage 5 is provided between the convex portions 12a to 12c and the convex portions 13a to 13c in the front-rear direction.
  • the passage 5 is formed in a rectangular shape elongated in the left-right direction.
  • the guide member for guiding the medal 2 to the passage hole 3 a is fixed to the case body 3. This guide member guides the medal 2 to the passage hole 3a so that the medal 2 passes between the right end surface of the convex portions 12a, 13a and the left end surface of the convex portions 12b, 13b. That is, the left-right distance L1 (see FIG.
  • the width of the passage 5 in the left-right 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.
  • the width in the left-right direction of the passage 5 is the medal 2 that is assumed to be inserted from the medal slot of the slot machine, and 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 in 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 first end surface disposed on the leftmost side (second direction side).
  • the right end surface of the convex portion 13a is the third end surface disposed on the rightmost side, and the left end surface of the convex portion 13b is the fourth end surface disposed on the leftmost side.
  • the convex portions 12c and 13c are formed so that the entire convex portions 12c and 13c overlap the medal 2 when viewed from the front-rear direction regardless of the position of the passage 5 in the left-right direction. Is also arranged. That is, even when the medal 2 passes through the passage 5 so that the right end surface of the convex portions 12a, 13a or the left end surface of the convex portions 12b, 13b coincides with the outer peripheral end of the medal 2, it is viewed from the front-rear direction. Sometimes, the convex portions 12 c and 13 c are formed and arranged so that the entire convex portions 12 c and 13 c overlap with the medal 2.
  • the distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the front-rear direction is a distance L3 (see FIG. 6) between the right end surface of the convex portions 12a, 13a and the left end surface of the first connecting core 14 in the left-right direction, and the left end of the convex portions 12b, 13b in the left-right direction. It is shorter than the distance L4 (see FIG. 6) between the surface and the right end surface of the second connecting core 15.
  • the distance L2 between the convex portion 12c and the convex portion 13c in the front-rear direction is the shortest distance between the convex portion 12c and the convex portion 13a (that is, the rear end of the right end surface of the convex portion 12c and the front end of the left end surface of the convex portion 13a). And the shortest distance between the convex portion 12c and the convex portion 13b (that is, the shortest distance between the rear end of the left end surface of the convex portion 12c and the front end of the right end surface of the convex portion 13b). Yes.
  • the distance L5 between the right end surface of the convex portions 12a, 13a and the right end surface of the convex portions 12b, 13b in the left-right direction, and the left end surface of the convex portions 12a, 13a and the left end surface of the convex portions 12b, 13b in the left-right direction Is smaller than the outer diameter of the medal 2.
  • the distances L5 and L6 are medals 2 that are assumed to be inserted from the medal insertion slot of the slot machine, and are 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 and lower surfaces of the convex portions 12a to 12c (the surface and the back surface of the first excitation side convex portion 12a and the surface of the second excitation side convex portion 12b in the passing direction of the detection target 2). And a back surface and a front surface and a back surface of the third excitation side convex portion 12c), a right end surface (first end surface) of the convex portion 12a, and a left end surface (second end surface) of the convex portion 12b. Thus, the exciting coil 8 is wound around the convex portions 12a to 12c.
  • the exciting coil 8 is connected to the convex portions 12a to 12c via the bobbin 20 (excitation bobbin) 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. It is wound around.
  • the top surfaces of the convex portions 12a to 12c are surfaces on one side of the convex portions 12a to 12c located on the upstream side of the annular core 11 in the passing direction of the medal 2.
  • the lower surfaces of the convex portions 12a to 12c are surfaces on the other side of the convex portions 12a to 12c located on the downstream side of the annular core 11 in the passing direction of the medal 2.
  • the detection coil 9 is wound around the convex portions 13a to 13c. Specifically, as shown in FIG. 3, the upper and lower surfaces of the protrusions 13a to 13c (the front and back surfaces of the first detection-side protrusion 13a and the surface of the second detection-side protrusion 13b in the passing direction of the detection target 2). And the back surface 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 left end surface (fourth end surface) of the convex portion 13b.
  • the detection coil 9 is wound around the convex portions 13a to 13c via a single detection bobbin.
  • the detection coil 9 is wound around the convex portions 13a to 13c via the bobbin 21 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.
  • the detection coil 9 of this embodiment is a first detection coil.
  • the upper surfaces of the convex portions 13a to 13c are surfaces on one side of the convex portions 13a to 13c located on the downstream side of the annular core 11 in the passing direction of the medal 2.
  • the lower surfaces of the convex portions 13a to 13c are the other surfaces of the convex portions 13a to 13c located on the downstream side of the annular core 11 in the passing direction of the medal 2.
  • the detection coil 10 is wound around the convex portion 13c. Specifically, as shown in FIG. 4, the upper and lower surfaces of the convex portion 13c (the front surface and the rear surface of the third detection side convex portion 13c), the right end surface (the third end surface side of the third detection side convex portion 13c in the orthogonal direction).
  • the detection coil 10 via a substantially square cylindrical bobbin 22 (second detection bobbin) covering the left end surface and the left end surface (the end surface on the fourth end surface side of the third detection side convex portion 13c in the orthogonal direction). It is wound around the convex part 13c.
  • the detection coil 10 is wound around the convex portion 13c through the bobbin 22 so as to cover the upper and lower surfaces, the right end surface, and the left end surface of the convex portion 13c.
  • the detection coil 10 of this embodiment is a second detection coil.
  • an AC power supply 25 is connected to one end of a conducting wire that constitutes the exciting coil 8, and the other end of the conducting wire that constitutes the exciting coil 8 is grounded.
  • One end of a conducting wire constituting the detection coil 9 is connected to an MPU (Micro Processing Unit) 29 via an amplifier circuit 26, a rectifying circuit 27 and an offset circuit 28, and the other end of the conducting wire constituting the detection coil 9 is grounded.
  • One end of the conducting wire constituting the detection coil 10 is connected to the MPU 29 via the amplifier circuit 31, the rectifier circuit 32 and the offset circuit 33, and the other end of the conducting wire constituting the detection coil 10 is grounded.
  • a comparator 35 for determining the sampling range of the output signals S 1 and S 2 from the detection coils 9 and 10 is connected in parallel between the offset circuit 28 and the MPU 29.
  • the detection circuit of the magnetic sensor 4 is configured.
  • the lateral distance L1 between the right end surfaces of the convex portions 12a and 13a and the left end surfaces of the convex portions 12b and 13b is equal to the lateral width of the passage 5 and the detection coil 9 is
  • the convex portions 13a to 13c are wound around the convex portions 13a to 13c via the bobbin 21 so as to cover both 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. Therefore, the output value of the output signal S1 of the detection coil 9 varies due to the influence of the material, thickness and outer diameter of the medal 2 passing through the passage 5.
  • the convex portions 12c and 13c are disposed between the convex portions 12a and 13a and the convex portions 12b and 13b, and the medal 2 passes through any position of the passage 5 in the left-right direction from the front-rear direction.
  • the projections 12c and 13c are entirely formed and arranged so as to overlap the medal 2, and the detection coil 10 is wound around the projection 13c. For this reason, the output value of the output signal S2 of the detection coil 10 varies mainly due to the influence of the material and thickness of the medal 2 passing through the passage 5.
  • the medal identification device 1 it is identified whether or not the medal 2 passing through the passage 5 is genuine based on the maximum value V1 of the output signal S1 and the maximum value V2 of the output signal S2. .
  • the magnetic sensor 4 is set so that the output value of the output signal S1 and the output value of the output signal S2 become small. If the detection circuit is configured, for example, based on the minimum value of the output signal S1 and the minimum value of the output signal S2, whether or not the medal 2 passing through the passage 5 is a regular one is determined. Identified.
  • the output signal S2 whose output value varies mainly due to the influence of the material and thickness of the medal 2 is shown in FIG.
  • the center side of the medal 2 passes between the convex portion 12c and the convex portion 13c
  • peaks P1, P2, and P3 appear.
  • three peaks P1, P2, and P3 appear in the output signal S2.
  • Based on the values of the three peaks P1 to P3 and the maximum value V1 of the output signal S1, whether or not the medal 2 passing through the passage 5 is genuine may be identified.
  • the exciting coil 8 is wound around the rectangular convex portions 12a to 12c protruding toward the second core 13, and the rectangular convex portions 13a to 13c protruding toward the first core 12 are used for detection.
  • the magnetic sensor 4 is configured by winding the coil 9 and winding the detection coil 10 around the convex portion 13c. Therefore, in this embodiment, the configuration of the first core 12 and the second core 13 can be simplified, and the number of winding portions of the exciting coil 8 and the detecting coils 9 and 10 around the annular core 11 can be reduced. become. Therefore, in this embodiment, the configuration of the medal identification device 1 can be simplified.
  • the output value of the output signal S1 of the detection coil 9 varies due to the influence of the material, thickness and outer diameter of the medal 2 passing through the passage 5, and the output value of the output signal S2 of the detection coil 10 is The fluctuation mainly depends on the material and thickness of the medal 2 passing through the passage 5. Therefore, in this embodiment, it is possible to mainly identify the outer diameter of the medal 2 using the detection coil 9 and mainly identify the material and thickness of the medal 2 using the detection coil 10. Therefore, in this embodiment, it becomes possible to improve the identification accuracy of the medal 2.
  • the regular medal 2 has the same outer diameter and thickness, but the non-regular medal 2 and the regular medal 2 having different materials are identified, or the regular medal 2 has the same thickness and material. However, it is possible to identify the non-regular medal 2 and the regular medal 2 having different outer diameters.
  • the distance L1 in the left-right direction between the right end surfaces of the convex portions 12a, 13a and the left end surface of the convex portions 12b, 13b is equal to the width in the left-right direction of the passage 5 so Regardless of the position of the medal 2 through which the medal 2 passes, a part of the medal 2 does not deviate from the magnetic path formed between the convex portions 12a to 12c and the convex portions 13a to 13c. Therefore, in this embodiment, it is possible to suppress fluctuations in the output value of the output signal S1 of the detection coil 9 due to the passing position of the medal 2 in the left-right direction. As a result, in this embodiment, it becomes possible to improve the accuracy of identifying the outer diameter of the medal 2.
  • 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 L6 between the left end surface of the convex portions 12a and 13a and the left end surface of the convex portions 12b and 13b. Is a medal 2 that is expected to be inserted from the medal slot of the slot machine, and is smaller than the outer diameter of the medal 2 having the smallest outer diameter. Even if the medal 2 passes through the position, the medal 2 passes through in a state where the entire medal 2 is out of the space between the convex portion 12a and the convex portion 13a or between the convex portion 12b and the convex portion 13b. None go through 5.
  • the distance L8 from the left end surface of the medals 2 is larger than the outer diameter of the medal 2, as shown by the solid line in FIG. 9A, a part of the medal 2 is between the convex portion 12a and the convex portion 13a and When the medal 2 passes through the passage 5 so as to pass between the convex portion 12b and the convex portion 13b, and as shown by the broken line in FIG.
  • a part of the medal 2 is convex with the convex portion 12a.
  • the output of the detection coil 9 in the former case and the output of the detection coil 9 in the latter case vary greatly. That is, the output of the detection coil 9 may vary greatly depending on the passing position of the medal 2 in the left-right direction.
  • the convex portions 12c and 13c are formed so that the entire convex portions 12c and 13c are the same as the medal 2 when viewed from the front-rear direction regardless of the position of the passage 5 in the left-right direction. Since they are formed and arranged so as to overlap, the material and thickness of the medal 2 can be identified by the detection coil 10 without being affected by the outer diameter of the medal 2. Therefore, in this embodiment, it becomes possible to improve the identification accuracy of the material and thickness of the medal 2.
  • an exciting coil 8 and detection coils 9 and 10 are wound around an annular core 11 formed in a substantially square annular shape. Therefore, in this embodiment, it is possible to reduce the leakage of the magnetic flux generated by the exciting coil 8 from the annular core 11, and as a result, an efficient magnetic circuit can be formed in the annular core 11. Become.
  • the convex portion 12a and the convex portion 13a formed in the same shape are arranged at the same position in the left-right direction, and the convex portion 12b and the convex portion 13b formed in the same shape are arranged at the same position in the left-right direction.
  • the convex part 12c and the convex part 13c which are formed in the same shape are arrange
  • 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 L3 between the right end surface of the convex portions 12a and 13a and the left end surface of the first connecting core 14 in the left-right direction.
  • the distance L4 between the left end surface of the convex portions 12b, 13b and the right end surface of the second connecting core 15 in the left-right direction is the distance L3 between the right end surface of the convex portions 12a and 13a and the left end surface of the first connecting core 14 in the left-right direction.
  • the magnetic flux between the convex portion 12a and the convex portion 13a leaks toward the first connecting core 14, or the convex portion 12b It is possible to suppress the magnetic flux between the convex portions 13 b from leaking toward the second connecting core 15. That is, in this embodiment, a magnetic path is formed that wraps directly from the rear end surface of the convex portion 12a to the first connecting core 14, and a magnetic path that wraps directly from the rear end surface of the convex portion 12b to the second connecting core 15. Can be prevented from being formed. Therefore, in this embodiment, it is possible to increase the density of the magnetic flux passing through each of the convex portions 13a and the convex portions 13b.
  • the distance L2 between the convex part 12c and the convex part 13c in the front-rear direction is shorter than the shortest distance between the convex part 12c and the convex part 13a and the shortest distance between the convex part 12c and the convex part 13b. It has become. Therefore, in this embodiment, as indicated by the dashed arrows in FIG. 9B, it is possible to suppress the magnetic flux between the convex portions 12c and 13c from leaking toward the convex portions 13a and 13b. Become. That is, in this embodiment, it is possible to suppress the formation of a magnetic path that goes from the rear end surface of the convex portion 12c to the convex portions 13a and 13b. Therefore, in this embodiment, it is possible to increase the density of the magnetic flux passing through the convex portion 13c.
  • the first end face, the second end face, 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 front-rear direction. For this reason, it is possible to suppress the wraparound of the magnetic flux from the rear end surface of the convex portions 12a and 12b to the first core 12 on the front side and from the front end surface of the convex portions 13a and 13b to the second core 13 on the rear side. Become.
  • the distance from the rear end surface of the convex portion 12c to the first core 12 on the front side in the front-rear direction and the distance from the front end surface of the convex portion 13c to the second core 13 on the rear side are the same as those of the convex portions 12a to 12c in the front-rear direction. It is formed at a distance longer than the distance L2 with the convex portions 13a to 13c. For this reason, it becomes possible to suppress the wraparound of the magnetic flux from the rear end surface of the convex portion 12c in the front-rear direction to the first core 12 on the front side and from the front end surface of the convex portion 13c to the second core 13 on the rear side. .
  • an exciting coil 8 and detection coils 9 and 10 are wound around an annular core 11 formed in a substantially square annular shape. Therefore, even if the medal identification device 1 is arranged in an external magnetic field that is oriented in an arbitrary direction in the XY plane composed of the X direction and the Y direction, the magnetic path caused by the external magnetic field is a passing path. 5 is not formed. For example, even if the medal identification device 1 is arranged in an external magnetic field (arrow in FIG. 10) in which the direction of the magnetic lines of force is directed backward, as shown in FIG. The passage 5 is not formed.
  • the annular core 11 can be caused to function as a magnetic shield, and as a result, it is possible to suppress a decrease in the identification accuracy of the medal 2 due to the external magnetic field of the medal identification device 1. Even if the medal identification device 1 is arranged in an external magnetic field that faces in the up-down direction (Z direction), the up-down direction is orthogonal to the magnetic sensing direction of the detection coils 9, 10. The identification device 1 is not easily affected by an external magnetic field.
  • the annular core 11 is formed in a substantially quadrangular annular shape elongated in the left-right direction, and the passage 5 formed on the inner peripheral side of the annular core 11 is formed in a rectangular shape elongated in the left-right direction. Therefore, in this embodiment, it is possible to reduce the size of the annular core 11 while ensuring the widths of the first core 12, the second core 13, the first connection core 14, and the second connection core 15. That is, in the present embodiment, the width of the first core 12, the second core 13, the first connection core 14, and the second connection core 15 is ensured to prevent saturation of the internal magnetic flux in the annular core 11, and the annular core 11. Can be miniaturized.
  • annular core 11 is formed in a substantially square annular shape, for example, when the annular core 11 is formed by punching a plurality of annular cores 11 from one metal plate, Loss can be reduced. Furthermore, in this embodiment, since the annular core 11 is formed in a substantially square ring shape, for example, the positioning of the annular core 11 with respect to the case body 3 is easier than in the case where the annular core 11 is formed in an annular shape. become.
  • the exciting coil 8 is wound around the convex portions 12a to 12c via the bobbin 20.
  • the exciting coil 8 may be wound directly around the convex portions 12a to 12c.
  • the detection coil 9 is wound around the convex portions 13a to 13c via the bobbin 21, and the detection coil 10 is wound around the convex portion 13c via the bobbin 22. May be wound directly around the convex portions 13a to 13c, or the detection coil 10 may be wound directly around the convex portion 13c.
  • the exciting coil 8 is wound around the convex portions 12a to 12c 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 conducting wire constituting the exciting coil 8 is sequentially wound around the convex portion 12a, the convex portion 12c, and the convex portion 12b, so that the exciting coil 8 is It may be configured. 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 part 12c and the convex part 13c can be increased.
  • the detection coil 9 is wound around the convex portions 13a to 13c 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.
  • the detection coil 9 is formed by sequentially winding the conductive wire constituting the detection coil 9 around the convex portion 13a, the convex portion 13c, and the convex portion 13b. It may be configured. That is, the detection 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. Further, as shown in FIG.
  • the detection coil 9 may be configured by sequentially winding the conductive wire constituting the detection coil 9 around the convex portion 13a and the convex portion 13b. That is, the detection coil 9 may be wound around the convex portions 13a and 13b so as to cover the entire circumferences of the convex portions 13a and 13b.
  • the first core 12, the second core 13, the first connection core 14, and the second connection 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 separately, and the first core 12, the second core 13, The first connecting core 14 and the second connecting core 15 may be integrated. That is, the annular core 11 may not be formed integrally.
  • the magnetic sensor 4 includes the annular core 11 formed in an annular shape.
  • the magnetic sensor 4 instead of the annular core 11, as shown in FIG. 12, at least one of the first core 12, the second core 13, the first connection core 14, and the second connection core 15. You may provide the core 51 in which the gap (cut
  • the magnetic sensor 4 may include a core 51 in which a cap G is formed on the first connecting core 14 as shown in FIG. 12 (A), or as shown in FIG. 12 (B).
  • the core 51 in which the gap G is formed in the two cores 13 may be provided.
  • the gap W is preferably as narrow as possible so that leakage of magnetic flux from the gap G can be suppressed. That is, in place of the annular core 11, when the core 51 in which the gap G is formed is used, it is preferable to use the substantially annular core 51 in which the gap G having a narrow interval W is formed. Specifically, the gap G having a narrow interval W is preferably shorter than the distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the front-rear direction.
  • the direction of the magnetic flux is the direction from the convex portions 12a to 12c toward the convex portions 13a to 13c.
  • the gap G is preferably formed in the second core 13.
  • the 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 toward the convex portions 12a to 12c, the gap G is formed in the first core 12. Preferably it is.
  • the gap G may be filled with a nonmagnetic material.
  • the distance L1 in the left-right direction between the right end surface of the convex portions 12a, 13a and the left end surface of the convex portions 12b, 13b is equal to the width in the left-right direction of the passage 5.
  • the distance L1 may be wider than the width of the passage 5 in the left-right direction.
  • the distance L1 may be narrower than the width in the left-right direction of the passage 5 as long as the distance L1 is equal to or greater than the outer diameter of the medal 2.
  • the 1st core 12 and the 2nd core 13 are formed in the same shape,
  • the distance of the left-right direction of the right end surface of the convex part 12a, and the left end surface of the convex part 12b, and the convex part 13a The right and left distances between the right end surface of the projections 13b and the left end surface of the projections 13b are equal to each other, but the left and right distances between the right end surfaces of the projections 12a and the left end surfaces of the projections 12b and the right ends of the projections 13a are the same.
  • the distance in the left-right direction between the surface and the left end surface of the convex portion 13b may be different.
  • the convex portions 12a to 12c are formed in a rectangular shape.
  • the convex portions 12a to 12c may be formed in a trapezoidal shape whose width in the left-right direction becomes narrower or wider toward the rear side.
  • the convex portions 13a to 13c are formed in a rectangular shape, but the convex portions 13a to 13c may be formed in a trapezoidal shape whose width in the left-right direction is narrower or wider toward the front side. .
  • the distance in the left-right direction between the rear end of the right end surface of the convex portion 12a (that is, the end on the second core 13 side) and the rear end of the left end surface of the convex portion 12b is equal to or greater than the outer diameter of the medal 2.
  • the convex portions 12a and 12b are formed, and the distance in the left-right direction between the front end of the right end surface of the convex portion 13a (that is, the first core 12 side end) and the front end of the left end surface of the convex portion 13b is The convex portions 13a and 13b are formed so as to be equal to or larger than the diameter.
  • the convex portion 12a so that the distance in the left-right direction between the rear end of the right end surface of the convex portion 12a and the rear end of the left end surface of the convex portion 12b is equal to or greater than the width in the left-right direction of the passage 5.
  • 12b are formed, and the protrusions 13a and 13b are formed such that the distance in the left-right direction between the front end of the right end surface of the protrusion 13a and the front end of the left end surface of the protrusion 13b is equal to or greater than the width in the left-right direction of the passage 5. It is formed.
  • the distance between the rear end of the right end surface of the convex portion 12a in the left-right direction and the left end surface of the first connecting core 14 and the front end of the right end surface of the convex portion 13a in the left-right direction and the first connecting core 14 The distance between the left end surface, the distance between the rear end of the left end surface of the convex portion 12b and the right end surface of the second connecting core 15 in the left-right direction, and the front end of the left end surface of the convex portion 13b and the second connecting core 15 in the left-right direction.
  • the convex portions 12a, 12b, 13a, and 13b are formed so that the distance L2 between the convex portions 12a to 12c and the convex portions 13a to 13c in the front-rear direction is shorter than the distance from the right end surface of the projection.
  • the convex portions 12 a, 12 b, 13 a, and 13 b are formed so that the distance from the front end of the left end surface is smaller than the outer diameter of the medal 2.
  • the first core 12 has three convex portions 12a to 12c.
  • the number of convex portions formed on the first core 12 may be one or two, or may be four or more.
  • the right end surface of the convex portion formed on the rightmost side is arranged on the rightmost side (first direction side).
  • the left end surface of the convex portion formed on the leftmost side becomes the second end surface disposed on the leftmost side (second direction side).
  • the right end surface of the one convex portion is the first end surface arranged on the rightmost side (first direction side)
  • the left end surface of this one convex portion is the second end surface arranged on the leftmost side (second direction side).
  • the three convex portions 13a to 13c are formed on the second core 13.
  • the number of convex portions formed on the second core 13 may be two or four or more.
  • 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)
  • the left end surface of the convex portion formed on the leftmost side is the leftmost side (first side). It becomes the fourth end face arranged on the (two direction side).
  • the magnetic sensor 4 includes the detection coil 10, but the magnetic sensor 4 may not include the detection coil 10.
  • the number of convex portions formed on the second core 13 may be one.
  • the right end surface of the one convex portion is the third end surface arranged on the rightmost side (first direction side).
  • the left end surface of each convex portion is the fourth end surface arranged on the leftmost side (second direction side).
  • the annular core 11 is formed in a substantially square ring shape.
  • the annular core 11 may be formed in an annular shape, an elliptical shape, or an oval shape.
  • the annular core 11 may be formed in a polygonal ring other than the square ring.
  • the magnetic sensor 4 includes the two detection coils 9 and 10.
  • the magnetic sensor 4 may include three or more detection coils.
  • a plurality of convex portions may be formed on the second core 13 according to the number of detection coils.
  • the medal identification device 1 is mounted and used in a slot machine.
  • the medal identification device 1 may be used by being mounted on a medal purchase machine or a medal counting machine.
  • the embodiment of the coin-shaped detected object identifying device of the present invention is described by taking the medal identifying device 1 for identifying the medal 2 used in the slot machine as an example.
  • the coin-shaped detected object identification device to which is applied may be, for example, a device for identifying other coin-shaped detected objects such as medals used in game machines.
  • the coin-shaped object to be detected in the present invention is not limited to medals used in slot machines, game machines, etc., and may be coins.
  • the medal purchase machine is a device for inserting cash and purchasing medals, and is installed between slot machines or at the hall entrance.
  • the medal counter is a device for counting the number of medals collected from each slot machine. For example, one medal counting machine is installed for a predetermined number of slot machines (for example, each island is installed), and a plurality of slot machines constituting the island where the medal counting machines are installed. Count the number of medals 2 gathered.
  • the medal counter is, for example, a collective central processing unit that further collects medals 2 collected for each island and counts the number.
  • the medal counter is a device that counts the number of medals 2 in order to replace the medals 2 with prizes, for example.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Slot Machines And Peripheral Devices (AREA)

Abstract

La présente invention concerne un dispositif permettant d'identifier un objet en forme de pièce de monnaie devant être détecté, ledit dispositif permettant la suppression de la diminution dans le temps de la précision d'identification de l'objet en forme de pièce de monnaie devant être détecté, et permettant la simplification de la configuration. Le dispositif permettant d'identifier un objet en forme de pièce de monnaie devant être détecté est pourvu d'un premier noyau (12) et d'un second noyau (13) qui sont disposés avec un espace prédéterminé entre eux dans le sens de l'épaisseur de l'objet en forme de pièce de monnaie devant être détecté. Dans le premier noyau (12), des parties en saillie (12a à 12c), qui font saillie côté second noyau (13) et autour desquelles est enroulée une bobine d'excitation (8), sont formées ; et dans le second noyau (13), des parties en saillie (13a à 13c), qui font saillie côté premier noyau (12) et autour desquelles sont enroulées des bobines de détection (9, 10), sont formées. Une voie de passage (5) à travers laquelle l'objet devant être détecté passe est formée entre les parties en saillie (12a à 12c) et les parties en saillie (13a à 13c) dans le sens de l'épaisseur de l'objet devant être détecté. La distance entre la surface d'extrémité dans la direction X1 de la partie en saillie (12a) et la surface d'extrémité dans la direction X2 de la partie en saillie (12b), et la distance entre la surface d'extrémité dans la direction X1 de la partie en saillie (13a) et la surface d'extrémité dans la direction X2 de la partie en saillie (13b), sont supérieures ou égales au diamètre extérieur de l'objet devant être détecté.
PCT/JP2013/081105 2012-11-20 2013-11-19 Dispositif d'identification d'objet en forme de pièce de monnaie devant être détecté WO2014080880A1 (fr)

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CN201380060343.0A CN104813370A (zh) 2012-11-20 2013-11-19 硬币状被检测体识别装置

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JP2012253831A JP6066684B2 (ja) 2012-11-20 2012-11-20 コイン状被検出体識別装置

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WO2014192378A1 (fr) * 2013-05-31 2014-12-04 日本電産サンキョー株式会社 Appareil d'identification d'objet à détecter en forme de pièce de monnaie

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JP2002098744A (ja) * 2000-09-25 2002-04-05 Sankyo Seiki Mfg Co Ltd 磁気センサ
JP2008293337A (ja) * 2007-05-25 2008-12-04 Magune Brain:Kk コインセンサ

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