JP5624799B2 - Coin identification sensor - Google Patents

Description

  The present invention relates to a coin identification sensor, and more particularly to a coin identification sensor capable of reducing the number of assembly steps and suppressing variation in assembly accuracy.

  2. Description of the Related Art Conventionally, a coin processing device such as a deposit / withdrawal machine or a money changer that handles coins has been provided with a sensor for identifying the denomination and authenticity of the coin. As such a sensor, a coin identification sensor using magnetism is known.

  For example, in Patent Document 1, a primary coil and a secondary coil are provided at positions facing each other across a coin conveyance path, and a signal corresponding to the material and shape of the coin across the magnetic field generated by the primary coil is received. A coin identification sensor output from the next coil is described.

  In addition, in the conventional coin identification sensor, a primary coil and a secondary coil are provided inside a shield having a magnetic shielding function in order to prevent the identification accuracy of the coin from deteriorating due to leakage of a magnetic field to the outside or penetration of magnetic flux from the outside. A secondary coil is provided.

  By the way, such a coin identification sensor assembles a plurality of members such as a primary coil shield, a secondary coil shield, a primary side core around which the primary coil is wound, a secondary side core around which the secondary coil is wound. It was formed with.

  For example, when assembling a coin identification sensor, a primary core is bonded to a predetermined position of a shield for a primary coil using a predetermined positioning member, and a secondary core is bonded to a predetermined position of a shield for a secondary coil.

  Subsequently, assembling was performed by aligning and bonding the shield for the primary coil and the shield for the secondary coil using a predetermined positioning member.

JP 2001-229428 A

  However, the conventional coin identification sensor has a problem that it is difficult to reduce the number of assembly steps because the number of constituent members is large. Further, the conventional coin identification sensor has a problem that the assembly accuracy varies because it is necessary to align the members for each assembly process.

  Therefore, how to realize a coin identification sensor capable of reducing the number of assembly steps and suppressing variation in assembly accuracy is a major issue.

  The present invention has been made to solve the above-described problems caused by the prior art, and an object of the present invention is to provide a coin identification sensor capable of reducing the number of assembly steps and suppressing variation in assembly accuracy.

In order to solve the above-described problems and achieve the object, a coin identification sensor according to the present invention provides a signal corresponding to the material and shape of a coin across a magnetic field excited by a primary coil to a secondary coil. a coin discrimination sensor which outputs from a sensor member which shields and is integrally molded with at least one core and the magnetic shielding function of the primary coil or the secondary side of the coil is wound It is characterized by that.

  The coin identification sensor according to the present invention includes the sensor member having a male part at a predetermined position and the sensor member having a female part at a predetermined position, and fitting the male part to the female part. It is assembled.

  In the coin identification sensor according to the present invention, when the male part is not fitted to the female part, the shield has one of a top surface and at least a side surface of the core formed integrally with the shield. It is formed so that a part may be exposed.

  In the coin identification sensor according to the present invention, when the male part is fitted to the female part, the shield shields the exposed part of the core formed integrally with the shield from each other. It is characterized by being molded.

  In the coin identification sensor according to the present invention, the core formed on the plurality of sensor members is joined by fitting the male part to the female part to assemble one core. It is characterized by.

  In the coin identification sensor according to the present invention, the sensor member is configured such that the core around which the primary side coil is wound and the core around which the secondary side coil is wound face each other across a coin conveyance path. It is positioned at a predetermined position and is integrally formed.

  The coin identification sensor according to the present invention is characterized in that it is formed separately from the sensor member, has a magnetic shielding function, and includes a cover body that includes the sensor member.

  According to the present invention, since the core and the shield are integrally formed in advance on the sensor member included in the coin identification sensor, the number of assembly steps is reduced by reducing the step of aligning and bonding the shield and the core. In addition, the variation in assembly accuracy can be suppressed.

  In addition, according to the present invention, the sensor members can be aligned by fitting the male part included in the sensor member to the female part included in the other sensor member, thereby suppressing variation in assembly accuracy. There is an effect that can be.

  Further, according to the present invention, when a plurality of sensor members are not fitted to each other, the core formed on each sensor member is in an exposed state, so that the coil is easily wound around the exposed portion of the core. There is an effect that it can be turned.

  Further, according to the present invention, when a plurality of sensor members are fitted to each other, the exposed portions of the core formed on each sensor member are shielded by the shield, so that the magnetic field from the coin identification sensor after assembly is reduced. By suppressing the leakage, there is an effect that it is possible to suppress a decrease in coin identification accuracy.

  In addition, according to the present invention, the cores formed on the sensor members can be joined together to form a single core, and therefore vibrations generated by the conveyance of coins and the like due to minute gaps generated on the joining surfaces of the cores. It is effective in absorbing and suppressing breakage of the core.

  Further, according to the present invention, the core around which the primary coil is wound around the sensor member and the core around which the secondary coil is wound are positioned at predetermined positions facing each other across the coin conveyance path. Since it is integrally formed, there is an effect that it is possible to suppress variation in the relative position between the core around which the primary side coil is wound and the core around which the secondary side coil is wound.

  In addition, according to the present invention, the magnetic field from the coin identification sensor is formed regardless of the shape of the sensor member by providing a cover body that is molded separately from the sensor member, has a magnetic shielding function, and includes the sensor member. There is an effect that leakage can be suppressed.

FIG. 1 is a diagram showing a difference in configuration between a conventional coin identification sensor and a coin identification sensor according to the present invention. FIG. 2 is a diagram illustrating an outline of the configuration and operation of the coin identification sensor according to the present embodiment. FIG. 3 is a diagram showing the shape of each member constituting the coin identification sensor according to the present embodiment and the assembly process of the sensor. FIG. 4 is a diagram showing a winding procedure of the primary coil and the secondary coil. FIG. 5 is a diagram illustrating a primary sensor member of the coin identification sensor according to the first modification. FIG. 6 is a view showing a coin identification sensor according to the second modification. FIG. 7 is a diagram illustrating a coin identification sensor according to the third modification. FIG. 8 is a diagram illustrating a coin identification sensor according to the fourth modification.

  Embodiments of a coin identification sensor according to the present invention will be described below in detail with reference to the accompanying drawings. First, prior to detailed description of the embodiment, an outline of a coin identification sensor according to the present invention will be described while comparing with a conventional coin identification sensor.

  FIG. 1 is a diagram showing a difference in configuration between a conventional coin identification sensor and a coin identification sensor according to the present invention. 1A and 1B show the configuration of a conventional coin identification sensor, and FIG. 1C shows an outline of the configuration of the coin identification sensor according to the present invention.

  As shown in FIG. 1A, a conventional coin identification sensor 100 has a predetermined position where a primary core 110 around which a primary coil is wound and a secondary core 120 around which a secondary coil is wound face each other. Is positioned and provided. In the figure, the primary coil and the secondary coil are not shown.

  Here, the primary coil is a coil that generates a magnetic field when an excitation signal is input. The secondary coil is a coil that outputs a signal corresponding to the material and shape of the coin that crosses the magnetic field generated by the primary coil.

  Further, the primary side core 110 is provided inside the primary side shield 111 having a magnetic shielding function in order to prevent the magnetic field generated by the primary coil from leaking out of the coin identification sensor 100. Similarly, the secondary core 120 is provided inside a secondary shield 121 having a magnetic shielding function.

  As shown in FIG. 1B, the coin identification sensor 100 aligns the primary side shield 111, the primary side core 110, the secondary side shield 121, and the secondary side core 120, which are separately formed, respectively. And assembled by bonding.

  As described above, in the conventional coin identification sensor 100, the primary side shield 111, the primary side core 110, the secondary side shield 121, and the secondary side core 120 are all separate bodies, so it is difficult to reduce the number of assembly steps. There was a problem. In addition, since it is necessary to align each member for each assembly process, there is a problem in that the assembly accuracy varies.

  Therefore, the coin identification sensor according to the present invention is configured by fitting and assembling the sensor members in which the core and the shield are integrally formed, thereby enabling a reduction in the number of assembly steps and variation in assembly accuracy. It was possible to suppress the occurrence.

  Specifically, as shown in FIG. 1C, the coin identification sensor 1 according to the present invention includes a sensor member 10 in which a primary side core 11 and a primary side shield 12 are integrally formed, a secondary side core 21, and the like. A sensor member 20 integrally formed with the secondary shield 22 is provided.

  And the coin identification sensor 1 is provided in the predetermined position of the secondary side sensor member 20 to the female part provided in the predetermined position (here, the position used as the right and left side surfaces of the coin identification sensor 1) of the primary side sensor member 10. The male part is configured to be assembled by fitting.

  Thus, since the coin identification sensor 1 does not require a step of bonding the primary side core 11 and the primary side shield 12 and a step of bonding the secondary side core 120 and the secondary side shield 121 at the time of assembly. The number of assembly steps can be reduced.

  In addition, the coin identification sensor 1 is configured so that the primary side core 11, the primary side shield 12, the secondary side core 21, and the secondary side shield 22 are relatively aligned by simply fitting the male part of the sensor member 20 to the female part of the sensor member 10. Since the position is determined, it is possible to suppress variation in assembly accuracy.

  The primary shield 12 is formed so that the top surface and at least a part of the side surface of the primary core 11 are exposed when the male part of the sensor member 20 is not fitted to the female part of the sensor member 10. doing. Similarly, when the male part of the sensor member 20 is not fitted to the female part of the sensor member 10, the secondary shield 22 exposes the top surface and at least a part of the side surface of the secondary core 21. It is molded as follows.

  Thereby, in the coin identification sensor 1, when the male part of the sensor member 20 is not fitted to the female part of the sensor member 10, the primary coil is easily applied to the exposed side surface (circumferential surface) of the primary side core 11. Can be wound. Similarly, in the coin identification sensor 1, the secondary coil can be easily wound around the exposed side surface (circumferential surface) of the secondary side core 21.

  Further, when the male part of the sensor member 20 is fitted to the female part of the sensor member 10, the primary side shield 12 and the secondary side shield 22 allow the exposed parts of the secondary side core 21 and the primary side core 11 to be mutually connected. Molded to shield. For this reason, since the coin identification sensor 1 can suppress the leakage of the magnetic field generated by the primary coil to the outside, the coin identification accuracy can be prevented from being lowered.

  As described above, the coin identification sensor 1 according to the present invention includes the sensor members 10 and 20 in which the core and the shield are integrally formed. For this reason, according to the coin identification sensor 1 according to the present invention, it is not necessary to bond the core and the shield at the time of assembly. For this reason, according to the coin identification sensor 1 which concerns on this invention, compared with the conventional coin identification sensor 100, an assembly can be completed with few assembly processes.

  Further, the coin identification sensor 1 according to the present invention can be obtained by simply fitting the male part provided at a predetermined position of the sensor member 20 to the female part provided at a predetermined position of the other sensor member 10. The relative position of the shield can be determined.

  For this reason, according to the coin identification sensor 1 which concerns on this invention, compared with the conventional coin identification sensor 100, it can suppress that dispersion | variation arises in an assembly precision. Exemplary embodiments of a coin identification sensor 1 according to the present invention will be described below in detail with reference to the accompanying drawings.

  First, the outline of the configuration and operation of the coin identification sensor according to the present embodiment will be described with reference to FIG. FIG. 2 is a diagram illustrating an outline of the configuration and operation of the coin identification sensor 1 according to the present embodiment. 2A is a perspective view of the coin identification sensor 1, FIG. 2B is a plan view of the coin identification sensor 1, and FIG. 2C is a front view of the coin identification sensor 1. It is.

  As shown in FIG. 2A, the coin identification sensor 1 includes a primary side shield 12 and a secondary side shield 22 having a magnetic shielding function, a primary side core 11 provided inside the primary side shield 11, And a secondary core 21 provided inside each of the pair of secondary shields 22.

  The primary side core 11 is wound with a primary coil 13 (see FIG. 1C) that generates a predetermined magnetic field when an excitation signal is input. On the other hand, each secondary-side core 21 is wound with a secondary coil 23 that outputs a signal corresponding to the material and shape of the coin that crosses the magnetic field generated by the primary coil 13 (FIG. 1C). reference).

  Further, the primary shield 12 constituting the front surface of the coin identification sensor 1 and the back surface facing the front surface is provided with a window portion for carrying in and out the coin B at the center. In addition, the code | symbol A in FIG. 2 is the conveyance belt which conveys a coin. As described above, the coin identifying sensor 1 is provided with a space penetrating from the front side to the back side, and this space becomes a conveyance path for the coin B.

  Further, as shown in FIG. 2B, the coin identification sensor 1 includes a slit extending from the upper surface of the coin identification sensor 1 to the coin B conveyance path between the pair of secondary shields 22. Thereby, in the coin identification sensor 1, the clogging of the coin B in the conveyance path can be visually confirmed through the slit from above the coin identification sensor 1.

  Further, the width of the slit is provided so as to be wider than the width of the conveyor belt A. For this reason, in the coin identification sensor 1, when the coin B is jammed in the transport path, the transport belt A can be pulled out from the slit, and the coin B jammed in the transport path can be easily discharged out of the transport path. Further, by providing such a slit, the replacement work of the transport belt A can be easily performed.

  When the coin identification sensor 1 identifies the coin B, an excitation signal is input to the primary coil 13 and a magnetic field C is generated from the primary coil 13 as shown in FIG. As the excitation signal input to the primary coil 13, for example, a signal including one or a plurality of frequency components can be used. At this time, when the coin B transported by the transport belt A crosses the magnetic field C, the magnetic flux density of the magnetic field C changes according to the material and shape (thickness) of the coin B crossing the magnetic field.

  Thus, when the magnetic flux density of the magnetic field C changes, an induced electromotive force corresponding to the change in the magnetic flux density is generated in the secondary coil 23. At this time, the secondary coil 23 outputs a signal according to the generated induced electromotive force, that is, a signal according to the material and shape of the coin B to be identified, to a predetermined signal analysis unit (not shown).

  The signal analysis unit compares the waveform of the signal input from the secondary coil 23 with the waveform of the signal stored in advance for each denomination of the coin and the characteristic part of the waveform, thereby identifying the identification target. The denomination and authenticity of the coin B are determined.

  Next, the shape of each member constituting the coin identification sensor 1 according to the present embodiment and the assembly process of the coin identification sensor 1 will be described with reference to FIG. FIG. 3 is a diagram showing the shape of each member constituting the coin identification sensor 1 according to the present embodiment and the assembly process of the sensor 1.

  The coin identification sensor 1 according to the present embodiment includes a sensor member 20 shown in FIG. 3A (hereinafter referred to as “secondary sensor member 20”) and a sensor member 10 shown in FIG. 3B (hereinafter referred to as “primary”). Are assembled together as shown in FIG. 3 (C).

  As shown in FIG. 3A, the secondary sensor member 20 is formed by integrally forming a secondary core 21 and a secondary shield 22. Here, the secondary sensor member 20 is formed using a soft magnetic material having a relatively small holding force and a high magnetic permeability as a material among the ferromagnetic materials.

  The secondary side sensor member 20 can be easily formed by filling a sintered mold with a magnetic material such as ferrite and sintering, for example. However, the manufacturing method of the sensor members 10 and 20 (the primary side sensor member 10 and the secondary side sensor member 20) is not limited to this, and machining or the like may be performed as long as a predetermined shape can be obtained using a magnetic material. You may use the form.

  Here, the secondary side core 21 is formed to be a rectangular parallelepiped, and is formed integrally with the secondary side shield 22 in a state where the upper surface is in contact with the lower surface of the top plate of the secondary side shield 22. The secondary shield 22 includes a top plate that makes the upper surface of the secondary core 21 unexposed, and a side plate that makes the upper half of the side surface of the secondary core 21 unexposed. Molded into an open box.

  Further, a shielding plate 24 that shields the side surface of the coin identification sensor 1 is integrally formed on one of the four side plates of the secondary shield 22. The shielding plate 24 is also formed using ferrite as a material.

  As described above, the secondary side sensor member 20 forms the secondary side shield 22 so that the top surface (lower surface) and a part of the side surface of the secondary side core 21 are exposed to the secondary side core 21. The secondary coil 23 can be easily wound. The winding procedure of the secondary coil 23 will be described later with reference to FIG.

  Further, as shown in FIG. 3B, the primary side sensor member 10 is formed by integrally forming a primary side core 11 and a primary side shield 12. And this primary side sensor member 10 is shape | molded, for example, by filling a sintered mold with ferrite and sintering.

  Further, the primary side core 11 is shaped so as to be a rectangular parallelepiped that is laterally longer than the secondary side core 12, and is molded integrally with the primary side shield 12 with the lower surface in contact with the upper surface of the bottom plate of the primary side shield 12. ing.

  The primary shield 12 includes a bottom plate that makes the lower surface of the primary core 11 unexposed, a front plate that forms the front side of the coin identification sensor 1, and a back plate that forms the back side of the coin identification sensor 1. It has. In the center of these front and back plates, a window portion serving as a carry-in portion and a carry-out portion for the coin B is provided.

  Here, the window portion of the front plate is provided at a position where the side surface of the primary core 11 facing the front plate from the outside of the primary shield 12 is not exposed, and the window portion of the back plate is the primary shield 12. The side surface of the primary side core 11 facing the back plate from the outside is provided at a position where it is not exposed.

  In other words, the primary shield 12 includes a primary core 11 therein, a space for transporting a coin B penetrating from the front side to the back side of the coin identification sensor 1, and a box shape in which left and right side surfaces and an upper surface are opened. It is molded into.

  The primary sensor member 10 easily winds the primary coil 13 around the primary side core 11 by forming the primary side shield 12 so that the top surface (upper surface) and the left and right side surfaces of the primary side core 11 are exposed. I can do it. In addition, the winding procedure of the primary coil 13 is later mentioned using FIG.

  Further, a slit wider than the width of the conveyor belt A is provided in the upper center of the front plate and the back plate of the primary shield 12. Further, rail-shaped recesses 14 are formed on the left and right edges of the front and back plates of the primary shield 12 as female portions into which the shielding plate 24 of the secondary shield 22 is fitted.

  Then, the coins are identified by fitting the edge of the shielding plate 24 formed on the secondary shield 22 as a male part to the recess 14 formed on the left and right edges of the front and back plates of the primary shield 14. The sensor 1 is assembled.

  That is, in the coin identification sensor 1, the primary side sensor member 10 and the secondary side sensor member are fitted by fitting the male part provided in the secondary side sensor member 20 to the female part provided in the primary side sensor part 10. The relative position with respect to 20 is determined. Thereby, in the coin identification sensor 1, the primary side core 11 and the secondary side core 21 are positioned so that it may become a predetermined position facing up and down across the conveyance path of the coin B.

  In this way, the coin identification sensor 1 is in the position of the primary side core 11 and the primary side shield 12, the secondary side core 21 and the secondary side shield 22, the primary side shield 12 and the secondary side shield 22 during assembly. Since it is not necessary to perform alignment, variations in assembly accuracy can be suppressed.

  The coin identification sensor 1 includes a primary sensor member 10 in which a primary core 11 and a primary shield 12 are integrally molded, and a secondary sensor member in which a secondary core 21 and a secondary shield 22 are integrally molded. Assembling can be completed only by fitting 20. For this reason, the coin identification sensor 1 can be assembled by fewer assembly steps than the conventional coin identification sensor 100.

  Next, the winding procedure of the primary coil 13 and the secondary coil 23 is demonstrated using FIG. FIG. 4 is a diagram illustrating a winding procedure of the primary coil 13 and the secondary coil 23.

  As shown in FIG. 4A, in the state before the secondary side sensor member 20 is fitted to the primary side sensor member 10, the top surface (lower surface) and a part of the side surface of the secondary side core 21 are two. The state is exposed from the secondary shield 22.

  For this reason, when winding the secondary coil 23, one end of the wire member D such as a copper wire is inserted from the outside of the secondary shield 22 into the secondary core 21 inside, and the exposed secondary core 21. As shown in FIG. 4B, the secondary coil 23 can be easily wound.

  Further, since the side surface of the secondary core 21 is exposed from the secondary shield 22 when the secondary coil 23 is wound, the other end side of the wire member D is connected to the outside of the secondary shield 22. It can be wound around the secondary core 21 while being pulled. For this reason, the wire member D can be tightly wound around the secondary core 21 without causing slack.

  Further, as shown in FIG. 4C, the primary sensor member 10 has a top surface (upper surface) of the primary core 11 and the coin identification sensor 1 in a state before the secondary sensor member 20 is fitted. The side surfaces opposite to the left and right side surfaces are exposed.

  For this reason, when winding the primary coil 13, one end of the wire member D is inserted into the primary shield 12 from the open portions provided on the left and right sides of the primary shield 12, and wound around the side surface of the primary core 12. By doing so, as shown in FIG.4 (D), the primary side core 13 can be wound easily.

  Moreover, when winding the primary coil 13, it can wind around the primary side core 11, pulling the other end side of the wire member D from the exterior of the open part provided in the right and left of the primary side shield 12. FIG. For this reason, the primary coil 12 can also be tightly wound around the primary core 11 without causing the wire member D to loosen.

  In addition, the shape of the primary side sensor member 10 of the coin identification sensor 1 is not limited to what is shown in FIG.3 (B). Here, with reference to FIG. 5, a modified example 1 of the coin identification sensor in which the shape of the primary sensor member 10 is different from that shown in FIG. 3B will be described.

  FIG. 5 is a view showing a primary sensor member 30 of the coin identification sensor according to the first modification. In addition, since the secondary side sensor member 20 of the coin identification sensor which concerns on the modification 1 is the same as what is shown to FIG. 3 (A), illustration is abbreviate | omitted here.

  As shown in FIG. 5, the primary sensor member 30 according to the first modification includes a pair of divided members 30 a obtained by dividing the primary sensor member 10 shown in FIG. , 30b are assembled together.

  That is, the split member 30a that constitutes the right side of the primary side sensor member 30 with respect to the coin B conveyance direction is a split core 31a in which the primary side core 11 and the primary side shield 12 shown in FIG. And a split shield 32a.

  Similarly, the split member 30b that forms the left side of the primary sensor member 30 with respect to the coin B conveyance direction is a split core obtained by splitting the primary core 11 and the primary shield 12 shown in FIG. 31b and division shield 32b are provided.

  Further, in each of the divided shields 32a and 32b, concave portions 34a and 34b into which the shielding plate 24 of the secondary shield 20 is fitted are formed in the same manner as the primary shield 12 shown in FIG.

  Further, the split member 30a that forms the right side of the primary sensor member 30 with respect to the direction in which the coins B are conveyed has a convex portion for fitting on the lower surface of the split core 31a that is a fitting portion with the split member 30b that forms the left side. 33a is formed.

  On the other hand, the split member 30b that forms the left side of the primary sensor member 30 with respect to the direction in which the coins B are conveyed has a fitting recess 33b on the upper surface of the split core 31b that is a fitting portion with the split member 30a that forms the right side. Is molded.

  And the primary side sensor member 30 is assembled by fitting the convex part 33a of the division member 30a to the recessed part 33b of the division member 30b. Furthermore, the coin identification sensor 1 having the same shape as that shown in FIG. 3C is assembled by fitting the secondary sensor member 20 shown in FIG. 3A to each of the divided members 30a and 30b. .

  Thus, in the primary side sensor member 30, the split core 31a and the split core 31b are joined by fitting the convex part 33a of the split member 30a which is a male part into the concave part 33b of the split member 30b which is a female part. One primary core is formed.

  For this reason, according to the primary side sensor member 30, since the vibration which generate | occur | produces by conveyance of a coin etc. can be absorbed by the micro clearance gap which arises in the joint surface of division | segmentation core 31a, 31b, the damage to the core by vibration is suppressed. can do.

  In addition, when a molding defect occurs in one of the recesses 34a and 34b of the divided members 30a and 30b, the primary side sensor member 30 discards only the defective one and replaces it with a non-defective product. Since it can be used as it is, the amount of discarded members can be reduced.

  Next, the coin identification sensor 1a according to the second modification will be described with reference to FIG. FIG. 6 is a diagram illustrating a coin identification sensor 1a according to the second modification.

  As shown in FIG. 6 (A), the coin identification sensor 1a includes a secondary side sensor member 40 in which a secondary side core 21 and a secondary side shield 42 are integrally formed, a primary side core 11 and a primary side shield. 52 and the primary side sensor member 50 formed integrally with each other are assembled together.

  As shown in FIG. 2A, the secondary shield 42 is formed in a box shape having a space containing the secondary core 21 inside and having an open lower surface side. Specifically, the secondary shield 422 includes a top plate that makes the upper surface of the secondary core 21 unexposed and a side plate that makes the side surface of the secondary core 21 unexposed.

  One of the four side plates of the secondary shield 42 is formed to be thicker than the other side plates. And the convex part 43 used as the male part fitted to the primary side sensor member 50 is shape | molded in the bottom face of the side plate shape | molded in this thickness.

  The secondary side sensor member 40 in which the secondary side core 21 and the secondary side shield 42 are integrally formed is formed, for example, by filling a sintered mold with ferrite and sintering it.

  On the other hand, the primary shield 52 has a space for enclosing the primary core 11 therein, a space for transporting a coin B penetrating from the front side to the back side of the coin identification sensor 1a, and a box shape whose upper surface is open. It is molded into.

  Specifically, the primary side shield 52 includes a bottom plate that makes the bottom surface of the primary side core 11 unexposed and a side plate that makes the side surface of the primary side core non-exposed. Further, among the four side plates of the primary shield 52, each side plate constituting the front surface and the back surface of the coin identification sensor 1a is loaded with coins B as in the case of the primary shield 12 shown in FIG. A window for carrying out is provided.

  Of the four side plates of the primary shield 52, the two side plates constituting the left and right side surfaces of the coin identification sensor 1a with respect to the coin B conveyance path are formed thicker than the other side plates. Moreover, the recessed part 53 used as the female part with which the convex part 43 of the secondary side sensor member 40 is fitted is shape | molded on the upper surface of the side plate shape | molded in this thickness.

  In addition, the primary side sensor member 50 in which the primary side core 11 and the primary side shield 52 are integrally formed is formed, for example, by filling a sintered mold with ferrite and sintering.

  6B, the coin identification sensor 1a is assembled by fitting the convex portion 43 formed on the secondary side sensor member 40 into the concave portion 53 formed on the primary side sensor member 50. As shown in FIG. . Thereby, in the coin identification sensor 1a, the primary side core 11 and the secondary side core 21 are positioned in the predetermined position which opposes across the conveyance path of the coin B.

  That is, in order to suppress variations in the relative positions of the primary core 11 and the secondary core 21 with the coin identification sensor 1a, the concave portion 53 of the primary sensor member 50 and the convex portion 43 of the secondary sensor member 40 It is only necessary to accurately form the shape and the molding position.

  For this reason, the coin identification sensor 1a fits the rail-shaped recessed part 14 shape | molded by the primary side sensor member 10, and the shielding board 24 of the secondary side sensor member 20 like the coin identification sensor 1 shown in FIG. As a result, variations in assembly accuracy can be suppressed as compared with the configuration.

  Further, the primary side sensor member 50 of the coin identification sensor 1a makes the primary side core 11 unexposed by the primary side shield 52, and the secondary side sensor member 40 makes the secondary side core 21 non-exposed by the secondary side shield 42. Molded to be exposed.

  For this reason, the coin identification sensor 1a does not expose the primary side core 11 and the secondary side core 21 to each other by the primary side shield 12 and the secondary side shield 22 like the coin identification sensor 1 shown in FIG. The structure can be simpler than the configuration in the state.

  Thus, the coin identification sensor 1a can suppress the fitting part of each member from being damaged at the time of assembly by simplifying the structure of the primary side sensor member 50 and the secondary side sensor member 40.

  However, in the coin identification sensor 1a, the primary side core 11 and the secondary side core 21 are not exposed before the primary side sensor member 50 and the secondary side sensor member 40 are fitted to each other. For this reason, the coin identification sensor 1a cannot wind the primary coil 13 and the secondary coil 23 as easily as the coin identification sensor 1 shown in FIG.

  Therefore, in the coin identification sensor 1a, as shown in FIG. 6 (B), a wire member D is wound around a box having the same shape as the primary side core 11 to form the primary coil 13, and the secondary side core 21 and The secondary member 23 is formed by winding the wire member D around a box having the same shape.

  Then, the primary coil 13 formed in advance is inserted into the primary side core 11 from the outside of the primary side shield 52, and the secondary coil 23 is inserted into the secondary side shield 42 from the outside to the inside. Is fitted to the secondary core 21.

  Thereby, the coin identification sensor 1a can easily wind the primary coil 13 and the secondary coil 23 even if the primary side core 11 and the secondary side core 21 are in an unexposed state.

  Next, a coin identification sensor according to Modification 3 will be described with reference to FIG. FIG. 7 is a view showing a coin identification sensor 1b according to the third modification. As shown in FIG. 7, the coin identification sensor 1 b is configured to fit a right sensor member 60 a that forms the right side of the coin identification sensor 1 b and a left sensor member 60 b that forms the left side with respect to the conveyance direction of the coin B. Assembled in.

  As shown in the figure, the right sensor member 60a is positioned at a predetermined position where the split core 31a and the secondary core 21 constituting the right half portion of the primary core are opposed to each other across the conveyance path of the coin B, It is molded integrally with the shield 62a. The split core 31a shown in the figure is the same as the split core 31a shown in FIG. 5, and a convex portion 33a that fits into the left sensor member 60b is formed on the lower surface.

  The left sensor 60b is positioned at a predetermined position where the split core 31b and the secondary core 21 constituting the left half of the primary core face each other across the conveyance path of the coin B, and is integrated with the shield 62b. Molded. The split core 31b shown in the figure is the same as the split core 31b shown in FIG. 5, and a concave portion 33b into which the right sensor member 60a is fitted is formed on the upper surface.

  Note that the right sensor member 60a and the left sensor unit 60b are formed by, for example, filling a pre-made mold with ferrite and sintering. The coin identification sensor 1c is assembled by fitting the convex portion 33a of the right sensor member 60a into the concave portion 33b of the left sensor member 60b.

  As described above, the coin identification sensor 1b is positioned in advance at a predetermined position where the split core 31a and the secondary core 21 face each other, and is positioned at a predetermined position where the split core 31b and the secondary core 21 face each other. .

  For this reason, the coin identification sensor 1b includes a primary core and a secondary core formed by joining the split cores 31a and 31b when the right sensor member 60a and the left sensor member 60b are fitted to each other. It is possible to suppress the occurrence of variation in the relative position with respect to 21.

  Next, the coin identification sensor 1c according to the modification 4 will be described with reference to FIG. FIG. 8 is a diagram illustrating a coin identification sensor 1c according to the fourth modification. As shown in FIG. 8, the coin identification sensor 1c has a sensor member 70 in which the primary side core 11 and the secondary side core 21 are integrally formed, and the sensor member 70 is formed separately, and has a magnetic shielding function. Cover body 80.

  As shown in the figure, the cover body 80 is provided with a side plate having the same shape as the shield constituting the front, back and left and right side surfaces of the coin identification sensor 1 shown in FIG. Such a cover body 80 is formed, for example, by filling a pre-made mold with ferrite and sintering. In addition, you may shape | mold this cover body 80 from a sheet-like permalloy, for example.

  The sensor member 70 includes a bottom plate 71 having the same shape as the bottom plate constituting the bottom surface of the coin identification sensor 1 shown in FIG. 3C, and the primary core 11 formed integrally with the bottom plate 71. Further, the sensor member 70 is formed integrally with the bottom plate 71, and the secondary side core 21 is positioned at a predetermined position facing the primary side core 11 across the conveyance path of the coin B. A holding body 72 is provided.

  The primary side core 11 and the secondary side core 21 are the same as the primary side core 11 and the secondary side core 21 shown in FIG. Here, the sensor member 70 including the primary core 11, the secondary core 21, and the holding body 72 is formed by, for example, filling a pre-made mold with ferrite and sintering.

  And the coin identification sensor 1c fits the cover body 80 to the sensor member 70, and assembles the exposed parts of the primary side core 11 and the secondary side core 21 in a non-exposed state.

  As described above, in the coin identification sensor 1c, the primary side core 11 and the secondary side core 21 are integrally molded in a state where the primary side core 11 and the secondary side core 21 are previously positioned at the predetermined positions facing each other. Since all the 21 attaching steps can be omitted, the number of assembling steps can be further reduced.

  Moreover, in the coin identification sensor 1c, since the relative position of the primary side core 11 and the secondary side core 21 has already been determined at the time of an assembly, it can prevent that an assembly precision varies.

  As described above, the coin identification sensor according to the present embodiment includes a plurality of sensor members in which a core and a shield are integrally formed. For this reason, according to the coin identification sensor 1 which concerns on a present Example, it is not necessary to adhere | attach a core and a shield at the time of an assembly. For this reason, according to the coin identification sensor which concerns on a present Example, compared with the conventional coin identification sensor, an assembly can be completed with few assembly processes.

  In addition, the coin identification sensor according to the present embodiment is configured so that the male part provided at the predetermined position of the sensor member is fitted into the female part provided at the predetermined position of the other sensor member, so that each core and each shield. The relative position can be determined.

  For this reason, according to the coin identification sensor which concerns on a present Example, compared with the conventional coin identification sensor, it can suppress that dispersion | variation arises in an assembly precision.

  The shape of each sensor member described above is an example of the present invention and is not limited to the above. That is, in the sensor member according to the present invention, the core and the shield are integrally formed, and the primary core and the secondary core are opposed to each other by fitting the sensor portions to each other. Any shape can be used as long as it can be positioned.

1, 1a, 1b, 1c Coin identification sensor 10, 30, 50 Primary sensor member 11 Primary core 12, 52 Primary shield 13 Primary coil 14 Recess 20, 40 Secondary sensor member 21 Secondary core 22, 42 Secondary shield 23 Secondary coil 24 Shielding plate 30a, 30b Split member 31a, 31b Split core 32a, 32b Split shield 33a, 43 Protrusion 33b, 34a, 34b, 53 Concave 60a Right sensor member 60b Left sensor member 62a, 62b Shield 70 Sensor member 71 Bottom plate 72 Holding body 80 Cover body A Transport belt B Coin C Magnetic field D Wire member

Claims (7)

A coin identification sensor that outputs a signal corresponding to the material and shape of a coin across a magnetic field excited by a primary coil from a secondary coil,
Coin identifying sensor and a shield having at least one core and the magnetic shielding function of the primary coil or the secondary side of the coil is wound is characterized by comprising a sensor member which are integrally formed. The sensor member having a male part at a predetermined position;
The sensor member having a female portion at a predetermined position,
The coin identification sensor according to claim 1, wherein the male part is assembled by fitting the male part to the female part. The shield is
When the male part is not fitted to the female part, the core is molded so that the top surface and at least a part of the side surface are integrally formed with the shield. The coin identification sensor according to claim 2. The shield is
The said male part is shape | molded so that the exposed part of the said core integrally molded with the said shield may be shielded mutually when fitted to the said female part. Coin identification sensor. The cores formed on the plurality of sensor members are joined by fitting the male part to the female part to assemble one core. The coin identification sensor according to any one of the above. The sensor member is
The core around which the primary side coil is wound and the core around which the secondary side coil is wound are positioned at a predetermined position facing each other across a coin conveyance path, and are integrally formed. The coin identification sensor according to any one of claims 1 to 5. The coin identification sensor according to claim 1, further comprising: a cover body that is molded separately from the sensor member, has a magnetic shielding function, and encloses the sensor member. .

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