WO2014195993A1 - Magnetic head and magnetic recording medium processing device - Google Patents

Magnetic head and magnetic recording medium processing device Download PDF

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Publication number
WO2014195993A1
WO2014195993A1 PCT/JP2013/003523 JP2013003523W WO2014195993A1 WO 2014195993 A1 WO2014195993 A1 WO 2014195993A1 JP 2013003523 W JP2013003523 W JP 2013003523W WO 2014195993 A1 WO2014195993 A1 WO 2014195993A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
core
magnetic head
recording medium
case
Prior art date
Application number
PCT/JP2013/003523
Other languages
French (fr)
Japanese (ja)
Inventor
弘之 鈴木
明博 忠政
彰伸 中坊
幸男 青山
Original Assignee
日立オムロンターミナルソリューションズ株式会社
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 日立オムロンターミナルソリューションズ株式会社 filed Critical 日立オムロンターミナルソリューションズ株式会社
Priority to JP2015521178A priority Critical patent/JP6122494B2/en
Priority to PCT/JP2013/003523 priority patent/WO2014195993A1/en
Priority to CN201410232983.1A priority patent/CN104239837B/en
Publication of WO2014195993A1 publication Critical patent/WO2014195993A1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00804—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic sheets
    • G11B5/00808—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic sheets magnetic cards

Definitions

  • the present invention relates to a magnetic head for reading or writing magnetic information from or to a magnetic recording medium, and a magnetic recording medium processing apparatus provided with the magnetic head, and more particularly to a technology for reducing the influence of electromagnetic waves and magnetic fields from the outside. .
  • Transaction processing devices such as ATM (Automated Teller Machine) and CDs (Cash Dispenser) are equipped with a magnetic recording medium processing device that handles magnetic recording media such as magnetic cards. .
  • a magnetic recording medium processing device that handles magnetic recording media such as magnetic cards.
  • reading or writing of magnetic information is performed on the magnetic card by the magnetic head inside.
  • noise is generated in the read signal of the magnetic head due to the influence of the electromagnetic wave and magnetic field generated externally, and the magnetic information recorded on the magnetic card can not be read or erroneous magnetic information is read. There are times when In addition, noise may occur in the write signal of the magnetic head, and the magnetic information may not be normally written on the magnetic card.
  • ATMs and CDs are composed of a plurality of units such as a computer main body, a liquid crystal display, a keyboard, and a printer, in addition to the magnetic recording medium processing device.
  • liquid crystal displays emit electromagnetic waves and magnetic fields to the periphery.
  • a transport motor provided in a magnetic recording medium processing device or a printer also radiates an electromagnetic wave or a magnetic field to the periphery.
  • the magnetic recording medium processing apparatus may use a magnetic head with high sensitivity so that weak magnetic information recorded on the magnetic recording medium can be read. In this case, even if the core or coil is covered with a metal case, the performance of reading or writing magnetic information is degraded by the influence of an electromagnetic wave or a magnetic field radiated from a liquid crystal display or the like.
  • the core is exposed at the contact surface of the magnetic head in contact with the magnetic recording medium. For this reason, even if a shield plate is provided around the magnetic head as in Patent Document 1, electromagnetic waves and magnetic fields from the outside enter from the exposed portion of the core, so the performance is degraded under the influence of them. I will.
  • a transport path such as a magnetic card or a transport member is disposed around the magnetic head, it is difficult to install a shield plate so as to completely cover the magnetic head.
  • An object of the present invention is to provide a magnetic head and a magnetic recording medium processing apparatus capable of improving the performance by reducing the influence of an electromagnetic wave and a magnetic field from the outside.
  • a magnetic head comprising a core, a coil disposed around the core, and a metal case accommodating the core and the coil, wherein the magnetic head reads or writes magnetic information to or from the magnetic recording medium.
  • a magnetic body is provided on the side of the core inside the.
  • a magnetic recording medium processing apparatus includes the above magnetic head and an insertion slot into which the magnetic recording medium is inserted, and the magnetic head reads the magnetic information from the magnetic recording medium inserted from the insertion slot. Or write.
  • the magnetic body is provided on the side of the core in the metal case of the magnetic head, the electromagnetic wave and the magnetic field from the outside are distributed so as to be attracted to the magnetic body. It becomes difficult. For this reason, in the magnetic head and the magnetic recording medium processing device provided with the magnetic head, the influence of the electromagnetic wave and the magnetic field from the outside, which cause noise, can be reduced. As a result, it becomes possible to improve the performance of reading and writing of magnetic information to the magnetic recording medium.
  • the present invention can be realized without changing the size and the case of the conventional magnetic head, the magnetic head in the existing magnetic recording medium processing apparatus can be easily replaced with the magnetic head of the present invention. Furthermore, when designing a new magnetic recording medium processing apparatus, it is not necessary to provide a shield plate or the like around the magnetic head, so the degree of freedom in designing the magnetic recording medium processing apparatus can be improved.
  • the magnetic body in the magnetic head, may be disposed laterally of the core in the thickness direction, and may be unevenly distributed so that an external electromagnetic wave and magnetic field do not reach the core.
  • the electromagnetic wave and magnetic field from the outside become less likely to reach the core, so the influence of the electromagnetic wave and magnetic field on the performance of the magnetic head can be further reduced.
  • the magnetic material in the magnetic head, may be provided on both sides of the core, or may be provided on one side of the core.
  • the magnetic material When the magnetic material is provided on both sides of the core, electromagnetic waves and magnetic fields from the outside can be effectively unevenly distributed to make the core difficult to be provided, as compared with the case where the magnetic material is provided on one side of the core.
  • the magnetic body when the magnetic body is provided on one side of the core, the internal structure of the magnetic head can be simplified as compared with the case where the magnetic body is provided on both sides of the core.
  • the magnetic body in the magnetic head, may be formed of a material having a permeability equal to or higher than that of the material of the core, or is formed of a material having a permeability smaller than that of the material of the core. May be
  • the electromagnetic wave and magnetic field from the outside are more effective than the case where the magnetic body is formed of a material having a permeability smaller than that of the core material. It can be attracted to the magnetic material to make it difficult to reach the core.
  • the magnetic body in the magnetic head, may have a thickness equal to or greater than the thickness of the core, or may have a thickness thinner than the thickness of the core.
  • the thickness of the magnetic body is made equal to or greater than the thickness of the core, electromagnetic waves and magnetic fields from the outside can be effectively unevenly distributed to make the core difficult as compared with the case where the thickness is made thinner than the thickness of the core. it can.
  • the magnetic body in the magnetic head, may have the same side shape as the core or may have a side shape different from the core.
  • the magnetic body can be manufactured using the same manufacturing equipment as the core, and the manufacturing efficiency can be improved.
  • the magnetic body in the magnetic head, may have a volume equal to or more than the volume of the core, or may have a volume smaller than the volume of the core.
  • the present invention it is possible to provide a magnetic head and a magnetic recording medium processing apparatus capable of improving the performance by reducing the influence of electromagnetic waves and magnetic fields from the outside.
  • FIG. 1 is an electrical block diagram of a magnetic recording medium processing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a view showing a magnetic card.
  • FIG. 3 is a schematic structural view of the magnetic recording medium processing device of FIG.
  • FIG. 4 is an exploded perspective view of the magnetic head according to the first embodiment of the present invention.
  • FIG. 5 is an assembly process diagram of the magnetic head of FIG.
  • FIG. 6 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head of FIG.
  • FIG. 7 is an exploded perspective view of a magnetic head according to a second embodiment of the present invention.
  • FIG. 8 is a diagram showing the distribution of electromagnetic waves and magnetic fields around the magnetic head of FIG.
  • FIG. 9 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head according to the third embodiment.
  • FIG. 10 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head according to the fourth embodiment.
  • FIG. 11 is a diagram showing the distribution of electromagnetic waves and magnetic fields
  • FIG. 1 is an electrical block diagram of the magnetic recording medium processing apparatus 100.
  • FIG. FIG. 2 is a view showing the magnetic card 20.
  • FIG. FIG. 3 is a schematic structural view of the magnetic recording medium processing apparatus 100. As shown in FIG.
  • an arrow F indicates a forward direction
  • an arrow B indicates a backward direction
  • an arrow L indicates a left direction
  • an arrow R indicates a right direction
  • an arrow U indicates an upward direction
  • an arrow D indicates a downward direction
  • the left direction L is the left direction when the front (F side) is viewed from the rear (B side)
  • the right direction R is the right when the front (F side) is viewed from the rear (B side) It is a direction.
  • the magnetic recording medium processing apparatus 100 is mounted, for example, on a transaction processing apparatus such as an ATM installed in a financial institution.
  • the magnetic recording medium processing apparatus 100 includes a magnetic card reader that receives the magnetic card 20 (FIG. 2) owned by the customer and reads the magnetic information recorded in the magnetic stripe 20s of the magnetic card 20.
  • the magnetic stripe 20 s is provided on the back surface 20 b of the magnetic card 20.
  • the magnetic card 20 is an example of the “magnetic recording medium” in the present invention.
  • the magnetic recording medium processing apparatus 100 includes a control unit 2, a magnetic stripe detection sensor 3, a storage unit 4, a magnetic head 10, a card conveyance unit 5, a card position detection sensor 6, and a host interface 7. Is equipped.
  • the magnetic stripe detection sensor 3 is provided in the insertion port unit 1 b of the magnetic recording medium processing apparatus 100 as shown in FIG. 3A.
  • An insertion slot 1c for inserting the magnetic card 20 is provided on the front surface of the insertion slot unit 1b.
  • the magnetic recording medium processing apparatus 100 is installed inside the panel 200 of the transaction processing apparatus with the insertion slot unit 1b facing forward (direction F).
  • the insertion opening 1 c communicates with the opening 201 provided in the panel 200.
  • the insertion port 1c is formed in rectangular shape, as shown to FIG. 3B.
  • the control unit 2, the storage unit 4, the magnetic head 10, the card conveyance unit 5, the card position detection sensor 6, and the host interface 7 are provided in the main body 1 a of the magnetic recording medium processing device 100.
  • the control unit 2 includes a microcomputer and controls the operation of each unit.
  • the storage unit 4 is composed of a memory and stores various types of information.
  • the magnetic stripe detection sensor 3 is configured of a small magnetic head.
  • the magnetic stripe detection sensor 3 detects the magnetic stripe 20s of the magnetic card 20 in which the magnetic information is recorded.
  • the control unit 2 detects the insertion of the magnetic card 20 from the insertion slot 1 c based on the output signal of the magnetic stripe detection sensor 3.
  • the card conveyance unit 5 includes a plurality of rollers 5a (FIG. 3), and a motor and a circuit (not shown) for rotating the rollers 5a.
  • the card transport unit 5 sandwiches the magnetic card 20 between the rollers 5a in the main body 1a, rotates the roller 5a by the driving force of the motor, and moves the magnetic card 20 along the transport path 40 (FIG. 3) Transport to B.
  • the magnetic head 10 is fixed to the lower side (D direction side) of the transport path 40 in the main body 1a.
  • the magnetic stripe 20s of the magnetic card 20 contacts the contact surface 10s of the magnetic head 10, and the magnetic head 10 transmits magnetic information from the magnetic stripe 20s. read.
  • the magnetic head 10 is for reproducing the magnetic information recorded on the magnetic stripe 20 s of the magnetic card 20.
  • the detailed structure of the magnetic head 10 will be described later.
  • the card position detection sensor 6 is composed of a plurality of transmission type optical sensors 6a to 6e shown in FIG.
  • the light receiving portions and the light emitting portions of the respective light sensors 6a to 6e are disposed to face the upper and lower sides (U and D directions) of the transport path 40 in the main body 1a.
  • the control unit 2 detects the position of the magnetic card 20 in the insertion slot unit 1b or the main body 1a based on the output signals of the respective optical sensors 6a to 6e.
  • the host interface 7 is composed of a circuit that transmits and receives information to and from a host computer (not shown) mounted on the ATM.
  • FIG. 1 the structure of the magnetic head 10A of the first embodiment will be described with reference to FIGS. 4 to 6.
  • FIG. 4 is a diagrammatic representation of the magnetic head 10A of the first embodiment.
  • FIG. 4 is an exploded perspective view of the magnetic head 10A.
  • FIG. 5 is an assembly process diagram of the magnetic head 10A.
  • FIG. 6 a plan view of the magnetic head 10A is shown in (a), a front view is shown in (b), and a side view is shown in (c).
  • the magnetic head 10A constitutes the magnetic head 10 shown in FIGS. 1 and 3 (the same applies to magnetic heads 10B, 10C, and 10D described later).
  • the magnetic head 10A is composed of, for example, a two-channel reproduction type magnetic head that reads magnetic information from two tracks provided on the magnetic stripe 20s of the magnetic card 20.
  • the magnetic head 10 ⁇ / b> A includes a core 11, a coil 12, a holder 13, a case 14, and a magnetic body 15.
  • Each core 11 consists of a pair of core pieces 11a as shown in FIG.
  • Each core piece 11a is made of, for example, a magnetic material such as ferrite or permalloy.
  • Each coil 12 comprises a bobbin 12b and a winding 12a wound around the bobbin 12b.
  • the bobbin 12b is a molded product of a synthetic resin.
  • Winding 12a is made of, for example, a copper wire or the like.
  • Two holders 13 made of synthetic resin are provided. Three grooves 13 a are formed in each holder 13.
  • the magnetic body 15 is formed in a plate shape, for example, of a magnetic material such as permalloy, sendust, ferrite, silicon steel, iron, aluminum, or stainless steel.
  • the material of the magnetic body 15 may be a material having a permeability equal to or higher than that of the material of the core 11, or may be a material having a permeability smaller than that of the material of the core 11.
  • the material of each magnetic body 15 is the same.
  • the thickness in the L and R directions of the magnetic body 15 is thinner than the thickness in the L and R directions of the core 11.
  • the magnetic body 15 has a side shape different from that of the core 11, and the area of the side is larger than that of the core 11. (See FIG. 6 (b)).
  • the volume of the magnetic body 15 is larger than the volume of the core 11.
  • illustration of the coil 12 and the holder 13 is omitted (the same applies to FIGS. 8 to 11 described later).
  • the case 14 is a metal case made of a magnetic material such as, for example, iron, stainless steel, aluminum, permalloy, ferrite, or silicon steel, and is formed in a box shape. In the upper part of the case 14, two rectangular openings 14a are formed. Inside the case 14, the core 11, the coil 12, the holder 13, and the magnetic body 15 are accommodated.
  • the core 11 is formed in a rectangular ring shape by combining the pair of core pieces 11a.
  • the horizontal portions 11c (FIG. 4) of the pair of core pieces 11a are inserted into the hollow portion 12c (FIG. 4) from both sides in the axial direction (F and B directions) of the bobbin 12b.
  • the coil 12 is arrange
  • a gap of a predetermined size is provided between the upper portions of the cores 11, that is, between the upper portions 11b of the pair of core pieces 11a (see also FIG. 6B).
  • a combination of the core 11 and the coil 12 is a direction perpendicular to the axial direction (F, B directions) of the coil 12 in two pairs, that is, the thickness direction of the core 11 (L , R direction).
  • the magnetic body 15 is provided between the left side (L direction side) of the core 11 on the left side, the right side (R direction side) of the core 11 on the right side, and both cores 11. Place. That is, the core 11 and the coil 12 and the magnetic body 15 are alternately arranged in the thickness direction (L and R directions) of the core 11 and the magnetic body 15.
  • both side end portions of the central magnetic body 15 are engaged with the central groove 13 a of each holder 13. Further, the left and right end portions of the magnetic body 15 are engaged with the left and right groove portions 13 a of each holder 13.
  • the core 11, the coil 12, the magnetic body 15, and the holder 13 are accommodated inside the case 14 from the lower side (D direction side), and the lower side of the case 14 is closed by a cover not shown.
  • the core 11, the coil 12, the magnetic body 15, and the holder 13 are fixed in the case 14. Further, in the case 14, the magnetic members 15 are disposed on both sides in the thickness direction of each core 11, that is, on the L direction side and R direction side of each core 11 (see FIGS. 6A and 6C). . That is, in the case 14, the cores 11 are sandwiched by the magnetic members 15.
  • each core 11 protrudes from each opening 14a of the case 14.
  • the lead terminals connected to both ends of the winding 12a of each coil 12 are drawn out from holes provided in a cover (not shown) (not shown).
  • each core 11 and the upper portion of the case 14 are polished, and as shown in FIGS. 6B and 6C, the upper surface of each core 11 is flush with the upper surface of the case 14.
  • the top surfaces of the core 11 and the case 14 are the contact surfaces 14s of the magnetic head 10A that are in contact with the magnetic stripes 20s of the magnetic card 20.
  • Each opening 14a of the case 14 is closed by each core 11 (see FIGS. 6A and 6C).
  • the magnetic head 10A manufactured as described above is fixed at the position of the magnetic head 10 in FIG. 3A, that is, at a predetermined position below the transport path 40 in the main body 1a of the magnetic recording medium processing apparatus 100. Ru. At this time, the magnetic head 10A is fixed such that the contact surface 14s of the magnetic head 10A is upward and the axial direction of each coil 12 is parallel to the transport direction (F, B direction) of the magnetic card 20. Further, the magnetic head 10A is electrically connected to the control unit 2 (FIG. 1) through a lead terminal (not shown) and the like.
  • the magnetic stripe 20s contacts the contact surface 14s of the magnetic head 10A. And according to the magnetic information recorded on 20 s of magnetic stripes, the magnetic field of core 11 changes, and the direction of the current which flows into coil 12 also changes.
  • the control unit 2 reads the magnetic information recorded in the magnetic stripe 20 s based on the change in the direction of the current flowing through the coil 12.
  • FIGS. 6 and 11 lines of magnetic force of electromagnetic waves and magnetic fields from the outside are indicated by dotted lines (the same applies to FIGS. 8 to 10 described later). Further, in FIG. 11, a plan view of the conventional magnetic head 90 is shown in (a), a front view is shown in (b), and a side view is shown in (c).
  • the electromagnetic wave and the magnetic field from the outside are shielded to some extent by the metal case 14, but a part penetrates the case 14 or passes through the opening 14 a of the case 14 to enter the inside.
  • the electromagnetic wave and the magnetic field entering the case 14 are as shown by dotted lines in FIGS. And transmits the core 11 made of a magnetic material to generate an electromotive force in a coil (not shown).
  • the magnetic information of the magnetic card 20 is read, noise is superimposed on the read signal, and the read performance of the magnetic head 90 is degraded.
  • the electromagnetic wave and the magnetic field which entered the case 14 are the magnetic materials on both sides of the core 11, as shown by dotted lines in FIGS. It is unevenly distributed so as to be attracted to 15 and becomes difficult to reach the core 11. Thereby, the electromotive force generated in the coil 12 (FIG. 4) by the electromagnetic wave and magnetic field from the outside is reduced, and the noise superimposed on the read signal is reduced when the magnetic information of the magnetic card 20 is read. Improve.
  • the magnetic head 10A of the first embodiment and the magnetic recording medium processing apparatus 100 provided with the magnetic head 10A it is possible to reduce the influence of an external electromagnetic wave and a magnetic field which cause noise. As a result, it is possible to improve the reading performance of the magnetic information to the magnetic card 20.
  • the magnetic body 15 is provided in the case 14 so as to sandwich the core 11, the size can be realized without changing the size of the magnetic head 10A or the case 14 from the conventional one. As a result, it is possible to easily replace the magnetic head provided in the existing magnetic recording medium processing apparatus with the magnetic head 10A of the first embodiment.
  • the magnetic body 15 is provided in the side (L, R direction side) of the thickness direction of the core 11. As shown in FIG. Therefore, for example, by disposing the magnetic body 15 on the side of the coil 12 in the F and B directions or the U and D directions, it is difficult for the electromagnetic wave and magnetic field from the outside to reach the core 11 and affect the performance of the magnetic head 10A. Can be further reduced.
  • the magnetic body 15 is provided on both sides (L and R directions) of the core 11, for example, the electromagnetic wave from the outside can be obtained by providing the magnetic body 15 on one side of the core 11. And the magnetic field can be effectively localized to make the core 11 difficult.
  • the magnetic body 15 by forming the magnetic body 15 with a material having a permeability equal to or higher than that of the material of the core 11, compared with the case where the magnetic body 15 is formed with a material having a permeability smaller than that of the core 11, The electromagnetic wave and the magnetic field of the above can be effectively attracted to the magnetic body to make it difficult to reach the core 11.
  • the electromagnetic wave and magnetic field from the outside can be effectively localized as compared with the case where the magnetic body having a smaller volume than the core 11 is provided,
  • the core 11 can be made difficult.
  • FIG. 7 the structure of the magnetic head 10B of the second embodiment will be described with reference to FIGS. 7 and 8.
  • FIG. 7 is an exploded perspective view of the magnetic head 10B.
  • a plan view of the magnetic head 10B is shown in (a)
  • a front view is shown in (b)
  • a side view is shown in (c).
  • the magnetic head 10B is composed of a two-channel regenerative magnetic head. As shown in FIG. 7, the magnetic head 10 ⁇ / b> B includes the core 11, the coil 12, the holder 13, the case 14, and the magnetic body 16. Among these, since it is the same as that of what was explained by a 1st embodiment except magnetic body 16, explanation is omitted.
  • each magnetic body 16 is composed of two pairs of magnetic pieces 16a, as shown in FIG.
  • Each magnetic piece 16a is formed of, for example, a magnetic material such as permalloy, sendust, ferrite, silicon steel, iron, aluminum, or stainless steel.
  • the material of the magnetic body 16 may be a material having a permeability equal to or higher than that of the material of the core 11 or may be a material having a permeability smaller than that of the material of the core 11.
  • the material of each magnetic body 16 is the same.
  • the thicknesses in the L and R directions of the magnetic body 16 are larger than the thicknesses in the L and R directions of the core 11. Further, when the core piece 11a and the magnetic piece 16a are viewed in the thickness direction (L and R directions), they have the same shape. That is, the magnetic body 16 has the same side shape as the core 11 (see FIG. 7). Furthermore, the volume of the magnetic body 16 is larger than the volume of the core 11.
  • the magnetic body 16 is disposed on the left side (L direction side) of the core 11 on the left side and the right side (R direction side) of the core 11 on the right side.
  • the magnetic body 16 and both side end portions of the cores 11 are engaged with the left and right groove portions 13 a of the holders 13. Thereafter, the core 11, the coil 12, the magnetic body 16, and the holder 13 are accommodated inside the case 14 from the lower side (D direction side), and the lower side of the case 14 is closed by a cover not shown. At this time, the upper portions of the magnetic pieces 16a may be cut so as to fit in the case 14.
  • the core 11, the coil 12, the magnetic body 16, and the holder 13 are fixed in the case 14. Further, the magnetic body 16 is disposed on one side (the case 14 side) of each core 11 in the case 14, and the magnetic body 16 is not present between the cores 11. That is, in the case 14, the cores 11 are sandwiched by the magnetic members 16.
  • the upper portion 11b of each core 11 and the upper portion of the case 14 are polished to form the contact surface 10s of the magnetic head 10B (see FIG. 8). Then, the magnetic head 10B is installed in the main body 1a of the magnetic recording medium processing apparatus 100 as in the above-described magnetic head 10A.
  • the electromagnetic wave and magnetic field from the outside are shielded to some extent in the case 14 of the magnetic head 10B, but a part of the electromagnetic wave and the magnetic field pass through the case 14 or pass through the opening 14a of the case 14 Enter the inside.
  • the electromagnetic wave and magnetic field entering the case 14 are distributed so as to be attracted to the magnetic body 16 on the side of the core 11 as shown by dotted lines in FIGS. Become.
  • the electromotive force generated in the coil 12 (FIG. 7) by the electromagnetic wave and magnetic field from the outside is reduced, and the noise superimposed on the read signal is reduced when the magnetic information of the magnetic card 20 is read.
  • the magnetic head 10B of the second embodiment and the magnetic recording medium processing apparatus 100 including the magnetic head 10B it is possible to reduce the influence of the electromagnetic wave and the magnetic field from the outside which cause noise. As a result, it is possible to improve the reading performance of the magnetic information to the magnetic card 20.
  • the magnetic body 16 is provided in the case 14 so as to sandwich the core 11, the size can be realized without changing the size of the magnetic head 10B or the case 14 from the conventional one. As a result, the magnetic head provided in the existing magnetic recording medium processing apparatus can be easily replaced with the magnetic head 10B of the second embodiment.
  • the magnetic body 16 is provided on one side (the L direction side or the R direction side) of the core 11, the magnetic body 15 is provided on both sides of the core 11 as in the first embodiment.
  • the internal structure of the magnetic head 10B can be simplified as compared with the case of FIG.
  • the thickness of the magnetic body 16 is equal to or greater than the thickness of the core 11, compared to the case where the thickness is thinner than the thickness of the core 11, electromagnetic waves and magnetic fields from the outside are effective. It can be unevenly distributed to make the core 11 difficult.
  • the side shape of the magnetic piece 16a constituting the magnetic body 16 is the same as the side shape of the core piece 11a constituting the core 11. Therefore, the same manufacturing equipment as the core piece 11a is provided.
  • the magnetic piece 16a can be manufactured using this, and the manufacturing efficiency can be improved.
  • the present invention can adopt various embodiments other than the embodiments described above.
  • the example which provided the magnetic bodies 15 and 16 which have volume larger than the volume of the core 11 in case 14 was shown in the above embodiment, this invention is not limited only to this.
  • magnetic bodies 17 and 18 having volumes smaller than the volume of the core 11 may be provided in the case 14.
  • the magnetic body 19 having the same thickness and volume as the thickness and volume of the core 11 may be provided in the case 14.
  • the influence of the electromagnetic wave and the magnetic field from the outside can be reduced, and as a result, the reading performance of the magnetic information to the magnetic card 20 can be improved.
  • the present invention is limited thereto. It is not a thing.
  • the magnetic body 17 disposed on the case 14 side of each core 11 and the magnetic body 18 disposed between each core 11 And the area, thickness, or volume of the side surface may be different.
  • each magnetic body 15 and 16 with the same material was given in 1st and 2nd embodiment, this invention is not limited only to this. Other than this, for example, the materials of the magnetic body disposed on the case 14 side of each core 11 and the magnetic body disposed between each core 11 may be different.
  • each core 11 is made of a material having a magnetic permeability larger than the magnetic permeability of the material of the magnetic material between the cores 11, the influence of electromagnetic waves and magnetic fields from the outside can be obtained. It can be effectively reduced.
  • the present invention is applied to the magnetic head 10 (10A to 10D) provided with two cores 11 and two coils 12 and reading magnetic information from the magnetic stripe 20s of the magnetic card 20 is shown.
  • the present invention can be applied to other than this, for example, to a magnetic head provided with one or more cores and one or more coils.
  • a coil may be disposed around the vertical portion 11 d (FIG. 5A) of the core 11.
  • the coil may be disposed in one of the vertical portions 11 d or may be disposed in both of the vertical portions 11 d.
  • the coil may be disposed across both the horizontal portion 11 c and the vertical portion 11 d of the core 11.
  • the present invention can be applied to a magnetic head which performs at least one of reading and writing of magnetic information to a magnetic recording portion of a magnetic recording medium such as a magnetic card or a passbook.
  • a magnetic head for writing magnetic information to a magnetic recording medium the writing performance can be improved.
  • the present invention can be applied to a small magnetic head that constitutes the magnetic stripe detection sensor 3.
  • the present invention is applied to the magnetic recording medium processing apparatus 100 for handling the magnetic card 20 provided with the magnetic stripe 20s on the back surface 20b .
  • the present invention can also be applied to, for example, a magnetic recording medium processing apparatus that handles a magnetic card having a magnetic stripe provided on at least one of the front surface and the back surface.
  • the present invention is also directed to a magnetic recording medium processing apparatus that performs at least one of reading and writing of magnetic information by a magnetic head to a magnetic recording medium such as a magnetic IC card or a passbook or the like provided with a magnetic stripe as well as a magnetic card. It is also possible to apply the present invention.
  • the present invention can read or read magnetic information from a magnetic recording medium, such as a card reader, a card reader / writer, a passbook reader, or a card reader, mounted on a card authentication terminal, mounted on a transaction processing apparatus such as ATM or CD.
  • a magnetic recording medium such as a card reader, a card reader / writer, a passbook reader, or a card reader, mounted on a card authentication terminal, mounted on a transaction processing apparatus such as ATM or CD.
  • the present invention can be generally used for magnetic recording medium processing devices that perform writing.

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Abstract

A magnetic head (10A) comprising a core (11), a coil (12) disposed around the core (11), and a metal case (14) for storing the core (11) and the coil (12) reads magnetic information from the magnetic stripe (20s) of a magnetic card (20). Magnetic bodies (15) are provided to the sides of the core (11) inside the case (14). With the magnetic bodies (15), external electromagnetic waves and magnetic fields are biased so as to not reach the core (11).

Description

磁気ヘッド、磁気記録媒体処理装置Magnetic head, magnetic recording medium processing apparatus
　本発明は、磁気記録媒体に対して磁気情報の読み取りまたは書き込みを行う磁気ヘッドと、該磁気ヘッドを備えた磁気記録媒体処理装置に関し、特に、外部からの電磁波および磁界の影響を軽減する技術に関する。 The present invention relates to a magnetic head for reading or writing magnetic information from or to a magnetic recording medium, and a magnetic recording medium processing apparatus provided with the magnetic head, and more particularly to a technology for reducing the influence of electromagnetic waves and magnetic fields from the outside. .
　ＡＴＭ（Automated Teller Machine：現金自動預金支払機）やＣＤ（Cash Dispenser：現金自動支払機）などの取引処理装置には、磁気カードなどの磁気記録媒体を取り扱う磁気記録媒体処理装置が搭載されている。この磁気記録媒体処理装置の挿入口から、たとえば磁気カードが挿入されると、内部にある磁気ヘッドにより、磁気カードに対して磁気情報の読み取りまたは書き込みが行われる。 Transaction processing devices such as ATM (Automated Teller Machine) and CDs (Cash Dispenser) are equipped with a magnetic recording medium processing device that handles magnetic recording media such as magnetic cards. . For example, when a magnetic card is inserted from the insertion port of the magnetic recording medium processing apparatus, reading or writing of magnetic information is performed on the magnetic card by the magnetic head inside.
　磁気記録媒体処理装置では、外部で発生した電磁波や磁界の影響により、磁気ヘッドの読み取り信号にノイズが生じて、磁気カードに記録された磁気情報を判読できなくなったり、誤った磁気情報を判読したりしてしまうことがある。また、磁気ヘッドの書き込み信号にノイズが生じて、磁気カードに磁気情報を正常に書き込めないこともある。 In the magnetic recording medium processing apparatus, noise is generated in the read signal of the magnetic head due to the influence of the electromagnetic wave and magnetic field generated externally, and the magnetic information recorded on the magnetic card can not be read or erroneous magnetic information is read. There are times when In addition, noise may occur in the write signal of the magnetic head, and the magnetic information may not be normally written on the magnetic card.
　この対策として、従来の磁気ヘッドでは、外部からの電磁波や磁界の影響を遮蔽するため、コアとコアの周囲に巻回されたコイルなどを、パーマロイなどの金属製のケースに収容している。また、特許文献１では、磁気ヘッドの上下に金属製のシールド板を設けている。 As a countermeasure against this, in the conventional magnetic head, in order to shield the influence of electromagnetic waves and magnetic fields from the outside, a core and a coil wound around the core are accommodated in a metal case such as permalloy. Further, in Patent Document 1, metal shield plates are provided above and below the magnetic head.
特開２００１－３０７０１８号公報JP, 2001-307018, A
　ＡＴＭやＣＤなどは、磁気記録媒体処理装置の他に、コンピュータ本体、液晶ディスプレイ、キーボード、およびプリンタなどの複数のユニットから構成されている。このうち、液晶ディスプレイなどは、周辺に電磁波や磁界を放射している。また、磁気記録媒体処理装置やプリンタなどに備わる搬送用モータも、周辺に電磁波や磁界を放射している。 ATMs and CDs are composed of a plurality of units such as a computer main body, a liquid crystal display, a keyboard, and a printer, in addition to the magnetic recording medium processing device. Among these, liquid crystal displays emit electromagnetic waves and magnetic fields to the periphery. In addition, a transport motor provided in a magnetic recording medium processing device or a printer also radiates an electromagnetic wave or a magnetic field to the periphery.
　磁気記録媒体処理装置では、磁気記録媒体に記録された微弱な磁気情報を読み取ることができるように、感度の高い磁気ヘッドを用いることがある。この場合、コアやコイルを金属製のケースで覆っていても、液晶ディスプレイなどから放射された電磁波や磁界の影響を受けて、磁気情報の読み取りや書き込みの性能が劣化してしまう。 The magnetic recording medium processing apparatus may use a magnetic head with high sensitivity so that weak magnetic information recorded on the magnetic recording medium can be read. In this case, even if the core or coil is covered with a metal case, the performance of reading or writing magnetic information is degraded by the influence of an electromagnetic wave or a magnetic field radiated from a liquid crystal display or the like.
　また、構造上、磁気記録媒体と接触する磁気ヘッドの接触面には、コアが露出している。このため、特許文献１のように、磁気ヘッドの周囲にシールド板を設けても、外部からの電磁波や磁界がコアの露出部分から進入するので、それらの影響を受けて、性能が劣化してしまう。また、磁気ヘッドの周囲には、磁気カードなどの搬送路や搬送部材が配置されるため、磁気ヘッドを完全に覆うように、シールド板を設置するのは困難である。 Also, due to its structure, the core is exposed at the contact surface of the magnetic head in contact with the magnetic recording medium. For this reason, even if a shield plate is provided around the magnetic head as in Patent Document 1, electromagnetic waves and magnetic fields from the outside enter from the exposed portion of the core, so the performance is degraded under the influence of them. I will. In addition, since a transport path such as a magnetic card or a transport member is disposed around the magnetic head, it is difficult to install a shield plate so as to completely cover the magnetic head.
　本発明の課題は、外部からの電磁波および磁界の影響を低減させて、性能を向上させることができる磁気ヘッドおよび磁気記録媒体処理装置を提供することである。 An object of the present invention is to provide a magnetic head and a magnetic recording medium processing apparatus capable of improving the performance by reducing the influence of an electromagnetic wave and a magnetic field from the outside.
　本発明では、コアと、コアの周囲に配置されたコイルと、コアおよびコイルを収容した金属製のケースとを備え、磁気記録媒体に対して磁気情報の読み取りまたは書き込みを行う磁気ヘッドにおいて、ケースの内部のコアの側方に磁性体を設けている。 In the present invention, a magnetic head comprising a core, a coil disposed around the core, and a metal case accommodating the core and the coil, wherein the magnetic head reads or writes magnetic information to or from the magnetic recording medium. A magnetic body is provided on the side of the core inside the.
　また、本発明による磁気記録媒体処理装置は、上記磁気ヘッドと、磁気記録媒体が挿入される挿入口とを備え、挿入口から挿入された磁気記録媒体に対して、磁気ヘッドにより磁気情報の読み取りまたは書き込みを行う。 A magnetic recording medium processing apparatus according to the present invention includes the above magnetic head and an insertion slot into which the magnetic recording medium is inserted, and the magnetic head reads the magnetic information from the magnetic recording medium inserted from the insertion slot. Or write.
　上記構成によると、磁気ヘッドの金属製のケース内におけるコアの側方に、磁性体が設けられているので、外部からの電磁波および磁界が、磁性体に引き寄せられるように偏在して、コアに及び難くなる。このため、磁気ヘッドおよび該磁気ヘッドを備えた磁気記録媒体処理装置において、ノイズの原因となる、外部からの電磁波および磁界の影響を低減させることができる。そしてこの結果、磁気記録媒体に対する磁気情報の読み取りや書き込みの性能を向上させることが可能となる。 According to the above configuration, since the magnetic body is provided on the side of the core in the metal case of the magnetic head, the electromagnetic wave and the magnetic field from the outside are distributed so as to be attracted to the magnetic body. It becomes difficult. For this reason, in the magnetic head and the magnetic recording medium processing device provided with the magnetic head, the influence of the electromagnetic wave and the magnetic field from the outside, which cause noise, can be reduced. As a result, it becomes possible to improve the performance of reading and writing of magnetic information to the magnetic recording medium.
　また、従来の磁気ヘッドのサイズやケースを変えることなく実現することができるため、既存の磁気記録媒体処理装置における磁気ヘッドを、本発明の磁気ヘッドに容易に置き換えることができる。さらに、磁気記録媒体処理装置を新規に設計する場合は、磁気ヘッドの周囲にシールド板などを設ける必要がないので、磁気記録媒体処理装置の設計自由度を向上させることができる。 Further, since the present invention can be realized without changing the size and the case of the conventional magnetic head, the magnetic head in the existing magnetic recording medium processing apparatus can be easily replaced with the magnetic head of the present invention. Furthermore, when designing a new magnetic recording medium processing apparatus, it is not necessary to provide a shield plate or the like around the magnetic head, so the degree of freedom in designing the magnetic recording medium processing apparatus can be improved.
　本発明では、上記磁気ヘッドにおいて、磁性体は、コアの厚み方向の側方に配置され、外部からの電磁波および磁界をコアに及ばないように偏在させてもよい。 In the present invention, in the magnetic head, the magnetic body may be disposed laterally of the core in the thickness direction, and may be unevenly distributed so that an external electromagnetic wave and magnetic field do not reach the core.
　これにより、外部からの電磁波および磁界がコアに及び難くなるため、該電磁波および磁界が磁気ヘッドの性能に与える影響を一層低減させることができる。 As a result, the electromagnetic wave and magnetic field from the outside become less likely to reach the core, so the influence of the electromagnetic wave and magnetic field on the performance of the magnetic head can be further reduced.
　本発明では、上記磁気ヘッドにおいて、磁性体は、コアの両側方に設けられていてもよいし、または、コアの一側方に設けられていてもよい。 In the present invention, in the magnetic head, the magnetic material may be provided on both sides of the core, or may be provided on one side of the core.
　磁性体をコアの両側方に設けた場合は、コアの一側方に設けた場合と比べて、外部からの電磁波および磁界を効果的に偏在させて、コアに及び難くすることができる。一方、磁性体をコアの一側方に設けた場合は、コアの両側方に設けた場合と比べて、磁気ヘッドの内部の構造を簡単にすることができる。 When the magnetic material is provided on both sides of the core, electromagnetic waves and magnetic fields from the outside can be effectively unevenly distributed to make the core difficult to be provided, as compared with the case where the magnetic material is provided on one side of the core. On the other hand, when the magnetic body is provided on one side of the core, the internal structure of the magnetic head can be simplified as compared with the case where the magnetic body is provided on both sides of the core.
　本発明では、上記磁気ヘッドにおいて、磁性体は、コアの材質と同等以上の透磁率を有する材質で形成されていてもよいし、または、コアの材質より小さい透磁率を有する材質で形成されていてもよい。 In the present invention, in the magnetic head, the magnetic body may be formed of a material having a permeability equal to or higher than that of the material of the core, or is formed of a material having a permeability smaller than that of the material of the core. May be
　コアの材質と同等以上の透磁率を有する材質で磁性体を形成した場合は、コアの材質より小さい透磁率を有する材質で磁性体を形成した場合と比べて、外部からの電磁波および磁界を効果的に磁性体に引き寄せて、コアに及び難くすることができる。 When the magnetic body is formed of a material having a permeability equal to or higher than that of the core material, the electromagnetic wave and magnetic field from the outside are more effective than the case where the magnetic body is formed of a material having a permeability smaller than that of the core material. It can be attracted to the magnetic material to make it difficult to reach the core.
　本発明では、上記磁気ヘッドにおいて、磁性体は、コアの厚みと同等以上の厚みを有していてもよいし、または、コアの厚みより薄い厚みを有していてもよい。 In the present invention, in the magnetic head, the magnetic body may have a thickness equal to or greater than the thickness of the core, or may have a thickness thinner than the thickness of the core.
　磁性体の厚みをコアの厚みと同等以上の厚みにした場合は、コアの厚みより薄くした場合と比べて、外部からの電磁波および磁界を効果的に偏在させて、コアに及び難くすることができる。 When the thickness of the magnetic body is made equal to or greater than the thickness of the core, electromagnetic waves and magnetic fields from the outside can be effectively unevenly distributed to make the core difficult as compared with the case where the thickness is made thinner than the thickness of the core. it can.
　本発明では、上記磁気ヘッドにおいて、磁性体は、コアと同一の側面形状を有していてもよいし、または、コアと異なる側面形状を有していてもよい。 In the present invention, in the magnetic head, the magnetic body may have the same side shape as the core or may have a side shape different from the core.
　コアと磁性体の側面形状を同一にする場合は、コアと同一の製造設備を用いて、磁性体を製造することができ、製造効率を向上させることが可能となる。 When the side shapes of the core and the magnetic body are made the same, the magnetic body can be manufactured using the same manufacturing equipment as the core, and the manufacturing efficiency can be improved.
　さらに、本発明では、上記磁気ヘッドにおいて、磁性体は、コアの体積と同等以上の体積を有していてもよいし、または、コアの体積より小さい体積を有していてもよい。 Furthermore, in the present invention, in the magnetic head, the magnetic body may have a volume equal to or more than the volume of the core, or may have a volume smaller than the volume of the core.
　コアと同等以上の体積を有する磁性体を設けた場合は、コアより小さい体積を有する磁性体を設けた場合と比べて、外部からの電磁波および磁界を効果的に偏在させて、コアに及び難くすることができる。 When a magnetic body having a volume equal to or higher than that of the core is provided, electromagnetic waves and magnetic fields from the outside are effectively unevenly distributed to make it difficult to reach the core as compared with the case where a magnetic body having a volume smaller than the core is provided. can do.
　本発明によれば、外部からの電磁波および磁界の影響を低減させて、性能を向上させることができる磁気ヘッドおよび磁気記録媒体処理装置を提供することが可能となる。 According to the present invention, it is possible to provide a magnetic head and a magnetic recording medium processing apparatus capable of improving the performance by reducing the influence of electromagnetic waves and magnetic fields from the outside.
図１は、本発明の実施形態による磁気記録媒体処理装置の電気ブロック図である。FIG. 1 is an electrical block diagram of a magnetic recording medium processing apparatus according to an embodiment of the present invention. 図２は、磁気カードを示した図である。FIG. 2 is a view showing a magnetic card. 図３は、図１の磁気記録媒体処理装置の概略構造図である。FIG. 3 is a schematic structural view of the magnetic recording medium processing device of FIG. 図４は、本発明の第１実施形態による磁気ヘッドの分解斜視図である。FIG. 4 is an exploded perspective view of the magnetic head according to the first embodiment of the present invention. 図５は、図４の磁気ヘッドの組立工程図である。FIG. 5 is an assembly process diagram of the magnetic head of FIG. 図６は、図４の磁気ヘッドの周辺の電磁波および磁界の分布状態を示した図である。FIG. 6 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head of FIG. 図７は、本発明の第２実施形態による磁気ヘッドの分解斜視図である。FIG. 7 is an exploded perspective view of a magnetic head according to a second embodiment of the present invention. 図８は、図７の磁気ヘッドの周辺の電磁波および磁界の分布状態を示した図である。FIG. 8 is a diagram showing the distribution of electromagnetic waves and magnetic fields around the magnetic head of FIG. 図９は、第３実施形態による磁気ヘッドの周辺の電磁波および磁界の分布状態を示した図である。FIG. 9 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head according to the third embodiment. 図１０は、第４実施形態による磁気ヘッドの周辺の電磁波および磁界の分布状態を示した図である。FIG. 10 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head according to the fourth embodiment. 図１１は、従来の磁気ヘッドの周辺の電磁波および磁界の分布状態を示した図である。FIG. 11 is a diagram showing the distribution of electromagnetic waves and magnetic fields around the conventional magnetic head.
　以下、本発明の実施形態につき、図面を参照しながら説明する。各図において、同一の部分または対応する部分には、同一符号を付してある。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same parts or corresponding parts are denoted by the same reference numerals.
　まず、本発明の実施形態による磁気記録媒体処理装置１００の構成を、図１～図３を参照しながら説明する。 First, the configuration of a magnetic recording medium processing device 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.
　図１は、磁気記録媒体処理装置１００の電気ブロック図である。図２は、磁気カード２０を示した図である。図３は、磁気記録媒体処理装置１００の概略構造図である。 FIG. 1 is an electrical block diagram of the magnetic recording medium processing apparatus 100. As shown in FIG. FIG. 2 is a view showing the magnetic card 20. As shown in FIG. FIG. 3 is a schematic structural view of the magnetic recording medium processing apparatus 100. As shown in FIG.
　図３中、矢印Ｆは前方向、矢印Ｂは後ろ方向、矢印Ｌは左方向、矢印Ｒは右方向、矢印Ｕは上方向、および矢印Ｄは下方向を示している（後述の図４～図１１も同様）。なお、左方向Ｌは、後方（Ｂ側）から前方（Ｆ側）を見た場合の左方向であり、右方向Ｒは、後方（Ｂ側）から前方（Ｆ側）を見た場合の右方向である。 In FIG. 3, an arrow F indicates a forward direction, an arrow B indicates a backward direction, an arrow L indicates a left direction, an arrow R indicates a right direction, an arrow U indicates an upward direction, and an arrow D indicates a downward direction (see FIGS. The same applies to FIG. The left direction L is the left direction when the front (F side) is viewed from the rear (B side), and the right direction R is the right when the front (F side) is viewed from the rear (B side) It is a direction.
　磁気記録媒体処理装置１００は、たとえば、金融機関に設置されたＡＴＭなどの取引処理装置に搭載される。磁気記録媒体処理装置１００は、顧客が所有する磁気カード２０（図２）を受け付けて、磁気カード２０の磁気ストライプ２０ｓに記録された磁気情報を読み取る磁気カードリーダから構成されている。 The magnetic recording medium processing apparatus 100 is mounted, for example, on a transaction processing apparatus such as an ATM installed in a financial institution. The magnetic recording medium processing apparatus 100 includes a magnetic card reader that receives the magnetic card 20 (FIG. 2) owned by the customer and reads the magnetic information recorded in the magnetic stripe 20s of the magnetic card 20.
　図２に示すように、磁気ストライプ２０ｓは、磁気カード２０の裏面２０ｂに設けられている。磁気カード２０は、本発明の「磁気記録媒体」の一例である。 As shown in FIG. 2, the magnetic stripe 20 s is provided on the back surface 20 b of the magnetic card 20. The magnetic card 20 is an example of the “magnetic recording medium” in the present invention.
　図１に示すように、磁気記録媒体処理装置１００には、制御部２、磁気ストライプ検出センサ３、記憶部４、磁気ヘッド１０、カード搬送部５、カード位置検出センサ６、およびホストインタフェイス７が備わっている。 As shown in FIG. 1, the magnetic recording medium processing apparatus 100 includes a control unit 2, a magnetic stripe detection sensor 3, a storage unit 4, a magnetic head 10, a card conveyance unit 5, a card position detection sensor 6, and a host interface 7. Is equipped.
　そのうち、磁気ストライプ検出センサ３は、図３（ａ）に示すように、磁気記録媒体処理装置１００の挿入口ユニット１ｂ内に設けられている。挿入口ユニット１ｂの前面には、磁気カード２０を挿入する挿入口１ｃが設けられている。 Among them, the magnetic stripe detection sensor 3 is provided in the insertion port unit 1 b of the magnetic recording medium processing apparatus 100 as shown in FIG. 3A. An insertion slot 1c for inserting the magnetic card 20 is provided on the front surface of the insertion slot unit 1b.
　磁気記録媒体処理装置１００は、挿入口ユニット１ｂを前方（Ｆ方向）に向けて、取引処理装置のパネル２００の内側に設置される。挿入口１ｃは、パネル２００に設けられた開口２０１と連通する。また、挿入口１ｃは、図３（ｂ）に示すように、矩形状に形成されている。 The magnetic recording medium processing apparatus 100 is installed inside the panel 200 of the transaction processing apparatus with the insertion slot unit 1b facing forward (direction F). The insertion opening 1 c communicates with the opening 201 provided in the panel 200. Moreover, the insertion port 1c is formed in rectangular shape, as shown to FIG. 3B.
　制御部２、記憶部４、磁気ヘッド１０、カード搬送部５、カード位置検出センサ６、およびホストインタフェイス７は、磁気記録媒体処理装置１００の本体１ａ内に設けられている。 The control unit 2, the storage unit 4, the magnetic head 10, the card conveyance unit 5, the card position detection sensor 6, and the host interface 7 are provided in the main body 1 a of the magnetic recording medium processing device 100.
　制御部２は、マイクロコンピュータから構成され、各部の動作を制御する。記憶部４は、メモリから構成され、各種の情報を記憶している。 The control unit 2 includes a microcomputer and controls the operation of each unit. The storage unit 4 is composed of a memory and stores various types of information.
　磁気ストライプ検出センサ３は、小型の磁気ヘッドから構成されている。磁気ストライプ検出センサ３は、磁気情報の記録された磁気カード２０の磁気ストライプ２０ｓを検出する。制御部２は、磁気ストライプ検出センサ３の出力信号に基づいて、挿入口１ｃからの磁気カード２０の挿入を検知する。 The magnetic stripe detection sensor 3 is configured of a small magnetic head. The magnetic stripe detection sensor 3 detects the magnetic stripe 20s of the magnetic card 20 in which the magnetic information is recorded. The control unit 2 detects the insertion of the magnetic card 20 from the insertion slot 1 c based on the output signal of the magnetic stripe detection sensor 3.
　カード搬送部５は、複数のローラ５ａ（図３）と、各ローラ５ａを回転させるためのモータや回路（図示省略）から構成されている。カード搬送部５は、本体１ａ内でローラ５ａ間に磁気カード２０を挟み込み、モータの駆動力でローラ５ａを回転させて、搬送路４０（図３）に沿って磁気カード２０を前後方向Ｆ、Ｂに往復搬送する。 The card conveyance unit 5 includes a plurality of rollers 5a (FIG. 3), and a motor and a circuit (not shown) for rotating the rollers 5a. The card transport unit 5 sandwiches the magnetic card 20 between the rollers 5a in the main body 1a, rotates the roller 5a by the driving force of the motor, and moves the magnetic card 20 along the transport path 40 (FIG. 3) Transport to B.
　磁気ヘッド１０は、本体１ａ内の搬送路４０より下側（Ｄ方向側）に固定されている。磁気カード２０がカード搬送部５によりＦ、Ｂ方向に搬送される際に、磁気カード２０の磁気ストライプ２０ｓと磁気ヘッド１０の接触面１０ｓが接触し、磁気ヘッド１０が磁気ストライプ２０ｓから磁気情報を読み取る。 The magnetic head 10 is fixed to the lower side (D direction side) of the transport path 40 in the main body 1a. When the magnetic card 20 is transported by the card transport unit 5 in the F and B directions, the magnetic stripe 20s of the magnetic card 20 contacts the contact surface 10s of the magnetic head 10, and the magnetic head 10 transmits magnetic information from the magnetic stripe 20s. read.
　つまり、磁気ヘッド１０は、磁気カード２０の磁気ストライプ２０ｓに記録された磁気情報を再生するためのものである。磁気ヘッド１０の詳細構造は後述する。 That is, the magnetic head 10 is for reproducing the magnetic information recorded on the magnetic stripe 20 s of the magnetic card 20. The detailed structure of the magnetic head 10 will be described later.
　カード位置検出センサ６は、図３に示す、複数の透過型の光センサ６ａ～６ｅから構成されている。各光センサ６ａ～６ｅの受光部と投光部は、本体１ａ内で搬送路４０の上下（Ｕ、Ｄ方向側）に対向するように配置されている。制御部２は、各光センサ６ａ～６ｅの出力信号に基づいて、挿入口ユニット１ｂや本体１ａ内における磁気カード２０の位置を検出する。 The card position detection sensor 6 is composed of a plurality of transmission type optical sensors 6a to 6e shown in FIG. The light receiving portions and the light emitting portions of the respective light sensors 6a to 6e are disposed to face the upper and lower sides (U and D directions) of the transport path 40 in the main body 1a. The control unit 2 detects the position of the magnetic card 20 in the insertion slot unit 1b or the main body 1a based on the output signals of the respective optical sensors 6a to 6e.
　ホストインタフェイス７は、ＡＴＭに搭載されたホストコンピュータ（図示省略）に対して情報を送受信する回路から構成されている。 The host interface 7 is composed of a circuit that transmits and receives information to and from a host computer (not shown) mounted on the ATM.
　次に、第１実施形態の磁気ヘッド１０Ａの構造を、図４～図６を参照しながら説明する。 Next, the structure of the magnetic head 10A of the first embodiment will be described with reference to FIGS. 4 to 6. FIG.
　図４は、磁気ヘッド１０Ａの分解斜視図である。図５は、磁気ヘッド１０Ａの組立工程図である。図６では、磁気ヘッド１０Ａの平面図を（ａ）に示し、正面図を（ｂ）に示し、側面図を（ｃ）に示している。 FIG. 4 is an exploded perspective view of the magnetic head 10A. FIG. 5 is an assembly process diagram of the magnetic head 10A. In FIG. 6, a plan view of the magnetic head 10A is shown in (a), a front view is shown in (b), and a side view is shown in (c).
　磁気ヘッド１０Ａは、図１および図３に示した磁気ヘッド１０を構成するものである（後述の磁気ヘッド１０Ｂ、１０Ｃ、１０Ｄも同様）。磁気ヘッド１０Ａは、たとえば、磁気カード２０の磁気ストライプ２０ｓに設けられた２つのトラックから磁気情報を読み取る、２チャンネル再生型の磁気ヘッドから成る。 The magnetic head 10A constitutes the magnetic head 10 shown in FIGS. 1 and 3 (the same applies to magnetic heads 10B, 10C, and 10D described later). The magnetic head 10A is composed of, for example, a two-channel reproduction type magnetic head that reads magnetic information from two tracks provided on the magnetic stripe 20s of the magnetic card 20.
　図４に示すように、磁気ヘッド１０Ａには、コア１１、コイル１２、ホルダ１３、ケース１４、および磁性体１５が備わっている。 As shown in FIG. 4, the magnetic head 10 </ b> A includes a core 11, a coil 12, a holder 13, a case 14, and a magnetic body 15.
　図５（ａ）に示すように、コア１１は、２つ設けられている。各コア１１は、図４に示すように、２個１対のコア片１１ａから成る。各コア片１１ａは、たとえば、フェライトまたはパーマロイなどの磁性材料により形成されている。 As shown in FIG. 5A, two cores 11 are provided. Each core 11 consists of a pair of core pieces 11a as shown in FIG. Each core piece 11a is made of, for example, a magnetic material such as ferrite or permalloy.
　コイル１２は、２つ設けられている。各コイル１２は、ボビン１２ｂと、ボビン１２ｂの周囲に巻回された巻線１２ａとから成る。ボビン１２ｂは、合成樹脂の成型品である。巻線１２ａは、たとえば、銅線などから成る。 Two coils 12 are provided. Each coil 12 comprises a bobbin 12b and a winding 12a wound around the bobbin 12b. The bobbin 12b is a molded product of a synthetic resin. Winding 12a is made of, for example, a copper wire or the like.
　ホルダ１３は、合成樹脂製で、２つ設けられている。各ホルダ１３には、３つの溝部１３ａがそれぞれ形成されている。 Two holders 13 made of synthetic resin are provided. Three grooves 13 a are formed in each holder 13.
　磁性体１５は、３つ設けられている。磁性体１５は、たとえば、パーマロイ、センダスト、フェライト、珪素鋼鈑、鉄、アルミニウム、またはステンレスなどの磁性材料により、板状に形成されている。 Three magnetic bodies 15 are provided. The magnetic body 15 is formed in a plate shape, for example, of a magnetic material such as permalloy, sendust, ferrite, silicon steel, iron, aluminum, or stainless steel.
　磁性体１５の材質は、コア１１の材質と同等以上の透磁率を有する材質であってもよいし、または、コア１１の材質より小さい透磁率を有する材質であってもよい。各磁性体１５の材質は、同一である。 The material of the magnetic body 15 may be a material having a permeability equal to or higher than that of the material of the core 11, or may be a material having a permeability smaller than that of the material of the core 11. The material of each magnetic body 15 is the same.
　図６（ａ）に示すように、磁性体１５のＬ、Ｒ方向の厚みは、コア１１のＬ、Ｒ方向の厚みより薄くなっている。また、コア１１と磁性体１５を厚み方向（Ｌ、Ｒ方向）に見た場合、磁性体１５は、コア１１と異なる側面形状を有していて、該側面の面積は、コア１１より大きくなっている（図６（ｂ）参照）。さらに、磁性体１５の体積は、コア１１の体積より大きくなっている。図６では、コイル１２とホルダ１３の図示を省略している（後述の図８～図１１も同様）。 As shown in FIG. 6A, the thickness in the L and R directions of the magnetic body 15 is thinner than the thickness in the L and R directions of the core 11. When the core 11 and the magnetic body 15 are viewed in the thickness direction (L and R directions), the magnetic body 15 has a side shape different from that of the core 11, and the area of the side is larger than that of the core 11. (See FIG. 6 (b)). Furthermore, the volume of the magnetic body 15 is larger than the volume of the core 11. In FIG. 6, illustration of the coil 12 and the holder 13 is omitted (the same applies to FIGS. 8 to 11 described later).
　ケース１４は、１つ設けられている。ケース１４は、たとえば、鉄、ステンレス、アルミニウム、パーマロイ、フェライト、または珪素鋼鈑などの磁性材料からなる金属製のケースであって、箱状に形成されている。ケース１４の上部には、矩形孔状の開口部１４ａが２つ形成されている。ケース１４の内部には、コア１１、コイル１２、ホルダ１３、および磁性体１５が収容される。 One case 14 is provided. The case 14 is a metal case made of a magnetic material such as, for example, iron, stainless steel, aluminum, permalloy, ferrite, or silicon steel, and is formed in a box shape. In the upper part of the case 14, two rectangular openings 14a are formed. Inside the case 14, the core 11, the coil 12, the holder 13, and the magnetic body 15 are accommodated.
　図５（ａ）および図６（ｂ）に示すように、１対のコア片１１ａを組み合わせることにより、コア１１は矩形環状に形成される。そのコア１１の組立時に、１対のコア片１１ａの水平部１１ｃ（図４）を、ボビン１２ｂの軸方向（Ｆ、Ｂ方向）の両側から中空部１２ｃ（図４）にそれぞれ挿入する。 As shown in FIGS. 5 (a) and 6 (b), the core 11 is formed in a rectangular ring shape by combining the pair of core pieces 11a. When the core 11 is assembled, the horizontal portions 11c (FIG. 4) of the pair of core pieces 11a are inserted into the hollow portion 12c (FIG. 4) from both sides in the axial direction (F and B directions) of the bobbin 12b.
　これにより、図５（ａ）に示すように、コア１１の水平部１１ｃの周囲にコイル１２が配置される。また、コア１１の上部、すなわち１対のコア片１１ａの上部１１ｂの間に、所定の大きさのギャップが設けられる（図６（ｂ）も参照）。 Thereby, as shown to Fig.5 (a), the coil 12 is arrange | positioned around the horizontal part 11c of the core 11. As shown in FIG. In addition, a gap of a predetermined size is provided between the upper portions of the cores 11, that is, between the upper portions 11b of the pair of core pieces 11a (see also FIG. 6B).
　図５（ａ）に示すように、コア１１とコイル１２を組み合わせたものを、２組だけコイル１２の軸方向（Ｆ、Ｂ方向）に対して垂直な方向、すなわちコア１１の厚み方向（Ｌ、Ｒ方向）に並べる。そして、図５（ａ）で、左側にあるコア１１の左側方（Ｌ方向側）と、右側にあるコア１１の右側方（Ｒ方向側）と、両コア１１の間に、それぞれ磁性体１５を配置する。つまり、コア１１およびコイル１２と、磁性体１５とを、コア１１と磁性体１５の厚み方向（Ｌ、Ｒ方向）に交互に並べる。 As shown in FIG. 5A, a combination of the core 11 and the coil 12 is a direction perpendicular to the axial direction (F, B directions) of the coil 12 in two pairs, that is, the thickness direction of the core 11 (L , R direction). Then, in FIG. 5A, the magnetic body 15 is provided between the left side (L direction side) of the core 11 on the left side, the right side (R direction side) of the core 11 on the right side, and both cores 11. Place. That is, the core 11 and the coil 12 and the magnetic body 15 are alternately arranged in the thickness direction (L and R directions) of the core 11 and the magnetic body 15.
　次に、図５（ｂ）に示すように、各ホルダ１３の中央の溝部１３ａに、中央の磁性体１５の両側端部を係合させる。また、各ホルダ１３の左右の溝部１３ａに、左右の磁性体１５の両側端部を係合させる。 Next, as shown in FIG. 5 (b), both side end portions of the central magnetic body 15 are engaged with the central groove 13 a of each holder 13. Further, the left and right end portions of the magnetic body 15 are engaged with the left and right groove portions 13 a of each holder 13.
　そして、コア１１、コイル１２、磁性体１５、およびホルダ１３を、ケース１４の下方（Ｄ方向側）から内部に収容して、ケース１４の下方を図示しないカバーにより塞ぐ。 Then, the core 11, the coil 12, the magnetic body 15, and the holder 13 are accommodated inside the case 14 from the lower side (D direction side), and the lower side of the case 14 is closed by a cover not shown.
　これにより、ケース１４内でコア１１、コイル１２、磁性体１５、およびホルダ１３が固定される。また、ケース１４内で各コア１１の厚み方向の両側方、すなわち各コア１１のＬ方向側とＲ方向側に、磁性体１５がそれぞれ配置される（図６（ａ）および（ｃ）参照）。つまり、ケース１４内で各コア１１が磁性体１５に挟み込まれた状態となる。 Thereby, the core 11, the coil 12, the magnetic body 15, and the holder 13 are fixed in the case 14. Further, in the case 14, the magnetic members 15 are disposed on both sides in the thickness direction of each core 11, that is, on the L direction side and R direction side of each core 11 (see FIGS. 6A and 6C). . That is, in the case 14, the cores 11 are sandwiched by the magnetic members 15.
　また、図５（ｃ）に示すように、ケース１４の各開口部１４ａから、各コア１１の上部１１ｂが突出する。各コイル１２の巻線１２ａの両端に接続されたリード端子は、図示しないカバーに設けられた孔から引き出される（図示省略）。 Further, as shown in FIG. 5C, the upper portion 11b of each core 11 protrudes from each opening 14a of the case 14. The lead terminals connected to both ends of the winding 12a of each coil 12 are drawn out from holes provided in a cover (not shown) (not shown).
　この後、各コア１１の上部１１ｂとケース１４の上部が研磨され、図６（ｂ）および（ｃ）に示すように、各コア１１の上面とケース１４の上面が面一になる。このコア１１およびケース１４の上面は、磁気カード２０の磁気ストライプ２０ｓと接触する、磁気ヘッド１０Ａの接触面１４ｓとなる。ケース１４の各開口部１４ａは、各コア１１により塞がれる（図６（ａ）および（ｃ）参照）。 Thereafter, the upper portion 11b of each core 11 and the upper portion of the case 14 are polished, and as shown in FIGS. 6B and 6C, the upper surface of each core 11 is flush with the upper surface of the case 14. The top surfaces of the core 11 and the case 14 are the contact surfaces 14s of the magnetic head 10A that are in contact with the magnetic stripes 20s of the magnetic card 20. Each opening 14a of the case 14 is closed by each core 11 (see FIGS. 6A and 6C).
　上記のように製造された磁気ヘッド１０Ａは、図３（ａ）における磁気ヘッド１０の位置、すなわち、磁気記録媒体処理装置１００の本体１ａ内の搬送路４０より下方にある所定の位置に固定される。その際、磁気ヘッド１０Ａの接触面１４ｓが上向きで、かつ各コイル１２の軸方向が磁気カード２０の搬送方向（Ｆ、Ｂ方向）と平行になるように、磁気ヘッド１０Ａは固定される。また、磁気ヘッド１０Ａは、図示しないリード端子などを介して、制御部２（図１）に電気的に接続される。 The magnetic head 10A manufactured as described above is fixed at the position of the magnetic head 10 in FIG. 3A, that is, at a predetermined position below the transport path 40 in the main body 1a of the magnetic recording medium processing apparatus 100. Ru. At this time, the magnetic head 10A is fixed such that the contact surface 14s of the magnetic head 10A is upward and the axial direction of each coil 12 is parallel to the transport direction (F, B direction) of the magnetic card 20. Further, the magnetic head 10A is electrically connected to the control unit 2 (FIG. 1) through a lead terminal (not shown) and the like.
　これにより、磁気カード２０が磁気ヘッド１０Ａ上を通過する際に、磁気ストライプ２０ｓが磁気ヘッド１０Ａの接触面１４ｓに接触する。そして、磁気ストライプ２０ｓに記録された磁気情報に応じて、コア１１の磁界が変化して、コイル１２に流れる電流の向きも変化する。制御部２は、そのコイル１２に流れる電流の向きの変化に基づいて、磁気ストライプ２０ｓに記録された磁気情報を判読する。 Thus, when the magnetic card 20 passes over the magnetic head 10A, the magnetic stripe 20s contacts the contact surface 14s of the magnetic head 10A. And according to the magnetic information recorded on 20 s of magnetic stripes, the magnetic field of core 11 changes, and the direction of the current which flows into coil 12 also changes. The control unit 2 reads the magnetic information recorded in the magnetic stripe 20 s based on the change in the direction of the current flowing through the coil 12.
　次に、外部で発生した電磁波および磁界の、磁気ヘッド１０Ａ周辺での分布状態を、図６を参照しながら説明する。また、比較のため、従来の磁気ヘッド９０の場合も、図１１を参照しながら説明する。 Next, the distribution of the electromagnetic wave and the magnetic field generated outside the magnetic head around the magnetic head 10A will be described with reference to FIG. Further, for comparison, the case of the conventional magnetic head 90 will be described with reference to FIG.
　図６および図１１では、外部からの電磁波および磁界の磁力線を点線で示している（後述の図８～図１０も同様）。また、図１１では、従来の磁気ヘッド９０の平面図を（ａ）に示し、正面図を（ｂ）に示し、側面図を（ｃ）に示している。 In FIGS. 6 and 11, lines of magnetic force of electromagnetic waves and magnetic fields from the outside are indicated by dotted lines (the same applies to FIGS. 8 to 10 described later). Further, in FIG. 11, a plan view of the conventional magnetic head 90 is shown in (a), a front view is shown in (b), and a side view is shown in (c).
　外部からの電磁波および磁界は、金属製のケース１４である程度遮蔽されるが、一部は、ケース１４を透過したり、ケース１４の開口部１４ａを通過したりして、内部に進入する。 The electromagnetic wave and the magnetic field from the outside are shielded to some extent by the metal case 14, but a part penetrates the case 14 or passes through the opening 14 a of the case 14 to enter the inside.
　図１１に示すように、内部に磁性体１５を設けていない従来の磁気ヘッド９０の場合、ケース１４内に進入した電磁波および磁界は、図１１（ａ）および（ｃ）に点線で示すように、磁性材料からなるコア１１を透過し、コイル（図示省略）に起電力を発生させる。これにより、磁気カード２０の磁気情報の読み取り時に、読み取り信号にノイズが重畳して、磁気ヘッド９０の読み取り性能が劣化してしまう。 As shown in FIG. 11, in the case of the conventional magnetic head 90 in which the magnetic body 15 is not provided inside, the electromagnetic wave and the magnetic field entering the case 14 are as shown by dotted lines in FIGS. And transmits the core 11 made of a magnetic material to generate an electromotive force in a coil (not shown). As a result, when the magnetic information of the magnetic card 20 is read, noise is superimposed on the read signal, and the read performance of the magnetic head 90 is degraded.
　これに対し、図６に示す磁気ヘッド１０Ａの場合は、ケース１４内に進入した電磁波および磁界は、図６（ａ）および（ｃ）に点線で示すように、コア１１の両側にある磁性体１５に引き寄せられるように偏在し、コア１１に及びにくくなる。これにより、外部からの電磁波および磁界によりコイル１２（図４）に発生する起電力が低減され、磁気カード２０の磁気情報の読み取り時に、読み取り信号に重畳するノイズが減少して、Ｓ／Ｎ比が向上する。 On the other hand, in the case of the magnetic head 10A shown in FIG. 6, the electromagnetic wave and the magnetic field which entered the case 14 are the magnetic materials on both sides of the core 11, as shown by dotted lines in FIGS. It is unevenly distributed so as to be attracted to 15 and becomes difficult to reach the core 11. Thereby, the electromotive force generated in the coil 12 (FIG. 4) by the electromagnetic wave and magnetic field from the outside is reduced, and the noise superimposed on the read signal is reduced when the magnetic information of the magnetic card 20 is read. Improve.
　つまり、上記第１実施形態の磁気ヘッド１０Ａおよび該磁気ヘッド１０Ａを備えた磁気記録媒体処理装置１００において、ノイズの原因となる、外部からの電磁波および磁界の影響を低減させることができる。そしてこの結果、磁気カード２０に対する磁気情報の読み取り性能を向上させることが可能となる。 That is, in the magnetic head 10A of the first embodiment and the magnetic recording medium processing apparatus 100 provided with the magnetic head 10A, it is possible to reduce the influence of an external electromagnetic wave and a magnetic field which cause noise. As a result, it is possible to improve the reading performance of the magnetic information to the magnetic card 20.
　また、コア１１を挟むように磁性体１５をケース１４内に設けているので、磁気ヘッド１０Ａのサイズやケース１４を従来のものと変えることなく実現することができる。この結果、既存の磁気記録媒体処理装置に備わる磁気ヘッドを、本第１実施形態の磁気ヘッド１０Ａに容易に置き換えることが可能となる。 Further, since the magnetic body 15 is provided in the case 14 so as to sandwich the core 11, the size can be realized without changing the size of the magnetic head 10A or the case 14 from the conventional one. As a result, it is possible to easily replace the magnetic head provided in the existing magnetic recording medium processing apparatus with the magnetic head 10A of the first embodiment.
　また、磁気記録媒体処理装置１００を新規に設計する場合は、磁気ヘッド１０Ａの周囲にシールド板などを設ける必要がないので、磁気記録媒体処理装置１００の設計自由度を向上させることができる。 Further, when designing the magnetic recording medium processing apparatus 100 anew, there is no need to provide a shield plate or the like around the magnetic head 10A, so the degree of freedom in designing the magnetic recording medium processing apparatus 100 can be improved.
　また、上記第１実施形態では、磁性体１５をコア１１の厚み方向の側方（Ｌ、Ｒ方向側）に設けている。このため、たとえば磁性体１５をコイル１２のＦ、Ｂ方向側やＵ、Ｄ方向側に配置するより、外部からの電磁波および磁界をコア１１に及び難くして、磁気ヘッド１０Ａの性能に与える影響を一層低減させることができる。 Moreover, in the said 1st Embodiment, the magnetic body 15 is provided in the side (L, R direction side) of the thickness direction of the core 11. As shown in FIG. Therefore, for example, by disposing the magnetic body 15 on the side of the coil 12 in the F and B directions or the U and D directions, it is difficult for the electromagnetic wave and magnetic field from the outside to reach the core 11 and affect the performance of the magnetic head 10A. Can be further reduced.
　また、上記第１実施形態では、磁性体１５をコア１１の両側方（Ｌ、Ｒ方向側）に設けているので、たとえば磁性体１５をコア１１の一側方に設けるより、外部からの電磁波および磁界を効果的に偏在させて、コア１１に及び難くすることができる。 Further, in the first embodiment, since the magnetic body 15 is provided on both sides (L and R directions) of the core 11, for example, the electromagnetic wave from the outside can be obtained by providing the magnetic body 15 on one side of the core 11. And the magnetic field can be effectively localized to make the core 11 difficult.
　また、コア１１の材質と同等以上の透磁率を有する材質で磁性体１５を形成することにより、コア１１の材質より小さい透磁率を有する材質で磁性体１５を形成する場合と比べて、外部からの電磁波および磁界を効果的に磁性体に引き寄せて、コア１１に及び難くすることができる。 Also, by forming the magnetic body 15 with a material having a permeability equal to or higher than that of the material of the core 11, compared with the case where the magnetic body 15 is formed with a material having a permeability smaller than that of the core 11, The electromagnetic wave and the magnetic field of the above can be effectively attracted to the magnetic body to make it difficult to reach the core 11.
　さらに、磁性体１５の体積をコア１１の体積と同等以上とすることにより、コア１１より小さい体積を有する磁性体を設ける場合と比べて、外部からの電磁波および磁界を効果的に偏在させて、コア１１に及び難くすることができる。 Furthermore, by making the volume of the magnetic body 15 equal to or larger than the volume of the core 11, the electromagnetic wave and magnetic field from the outside can be effectively localized as compared with the case where the magnetic body having a smaller volume than the core 11 is provided, The core 11 can be made difficult.
　次に、第２実施形態の磁気ヘッド１０Ｂの構造を、図７および図８を参照しながら説明する。 Next, the structure of the magnetic head 10B of the second embodiment will be described with reference to FIGS. 7 and 8. FIG.
　図７は、磁気ヘッド１０Ｂの分解斜視図である。図８では、磁気ヘッド１０Ｂの平面図を（ａ）に示し、正面図を（ｂ）に示し、側面図を（ｃ）に示している。 FIG. 7 is an exploded perspective view of the magnetic head 10B. In FIG. 8, a plan view of the magnetic head 10B is shown in (a), a front view is shown in (b), and a side view is shown in (c).
　磁気ヘッド１０Ｂは、２チャンネル再生型の磁気ヘッドから成る。図７に示すように、磁気ヘッド１０Ｂには、コア１１、コイル１２、ホルダ１３、ケース１４、および磁性体１６が備わっている。このうち、磁性体１６以外は、第１実施形態で説明したものと同一であるので、説明を省略する。 The magnetic head 10B is composed of a two-channel regenerative magnetic head. As shown in FIG. 7, the magnetic head 10 </ b> B includes the core 11, the coil 12, the holder 13, the case 14, and the magnetic body 16. Among these, since it is the same as that of what was explained by a 1st embodiment except magnetic body 16, explanation is omitted.
　図８（ａ）に示すように、磁性体１６は、２つ設けられている。各磁性体１６は、図７に示すように、２個１対の磁性片１６ａから成る。各磁性片１６ａは、たとえば、パーマロイ、センダスト、フェライト、珪素鋼鈑、鉄、アルミニウム、またはステンレスなどの磁性材料により形成されている。 As shown to Fig.8 (a), the two magnetic bodies 16 are provided. Each magnetic body 16 is composed of two pairs of magnetic pieces 16a, as shown in FIG. Each magnetic piece 16a is formed of, for example, a magnetic material such as permalloy, sendust, ferrite, silicon steel, iron, aluminum, or stainless steel.
　磁性体１６の材質は、コア１１の材質と同等以上の透磁率を有する材質であってもよいし、または、コア１１の材質より小さい透磁率を有する材質であってもよい。各磁性体１６の材質は、同一である。 The material of the magnetic body 16 may be a material having a permeability equal to or higher than that of the material of the core 11 or may be a material having a permeability smaller than that of the material of the core 11. The material of each magnetic body 16 is the same.
　図７および図８に示すように、磁性体１６のＬ、Ｒ方向の厚みは、コア１１のＬ、Ｒ方向の厚みより厚くなっている。また、コア片１１ａと磁性片１６ａを厚み方向（Ｌ、Ｒ方向）に見た場合、同一形状になっている。つまり、磁性体１６は、コア１１と同一の側面形状を有している（図７参照）。さらに、磁性体１６の体積は、コア１１の体積より大きくなっている。 As shown in FIGS. 7 and 8, the thicknesses in the L and R directions of the magnetic body 16 are larger than the thicknesses in the L and R directions of the core 11. Further, when the core piece 11a and the magnetic piece 16a are viewed in the thickness direction (L and R directions), they have the same shape. That is, the magnetic body 16 has the same side shape as the core 11 (see FIG. 7). Furthermore, the volume of the magnetic body 16 is larger than the volume of the core 11.
　前述したように、コア１１とコイル１２を組み合わせたものを、２組だけコイル１２の軸方向（Ｆ、Ｂ方向）に対して垂直な方向、すなわちコア１１の厚み方向（Ｌ、Ｒ方向）に並べる。また、磁性片１６ａ同士を組み合わせることにより、２つの磁性体１６をそれぞれ矩形環状に形成する。そして、図７で、左側にあるコア１１の左側方（Ｌ方向側）と、右側にあるコア１１の右側方（Ｒ方向側）に、磁性体１６をそれぞれ配置する。 As described above, only two sets of the combination of the core 11 and the coil 12 are perpendicular to the axial direction (directions F and B) of the coil 12, ie, in the thickness direction (directions L and R) of the core 11. Line up. Further, by combining the magnetic pieces 16a with each other, the two magnetic bodies 16 are respectively formed in a rectangular ring shape. Then, in FIG. 7, the magnetic body 16 is disposed on the left side (L direction side) of the core 11 on the left side and the right side (R direction side) of the core 11 on the right side.
　そして、各ホルダ１３の左右の溝部１３ａに、各磁性体１６と各コア１１の両側端部を係合させる。この後、コア１１、コイル１２、磁性体１６、およびホルダ１３を、ケース１４の下方（Ｄ方向側）から内部に収容して、ケース１４の下方を図示しないカバーにより塞ぐ。この際、ケース１４内に収まるように、各磁性片１６ａの上部を削ればよい。 Then, the magnetic body 16 and both side end portions of the cores 11 are engaged with the left and right groove portions 13 a of the holders 13. Thereafter, the core 11, the coil 12, the magnetic body 16, and the holder 13 are accommodated inside the case 14 from the lower side (D direction side), and the lower side of the case 14 is closed by a cover not shown. At this time, the upper portions of the magnetic pieces 16a may be cut so as to fit in the case 14.
　これにより、ケース１４内でコア１１、コイル１２、磁性体１６、およびホルダ１３が固定される。また、ケース１４内で各コア１１の一側方（ケース１４側）に磁性体１６が配置され、コア１１の間には磁性体１６が無い状態となる。つまり、ケース１４内で各コア１１が磁性体１６に挟み込まれた状態となる。 Thereby, the core 11, the coil 12, the magnetic body 16, and the holder 13 are fixed in the case 14. Further, the magnetic body 16 is disposed on one side (the case 14 side) of each core 11 in the case 14, and the magnetic body 16 is not present between the cores 11. That is, in the case 14, the cores 11 are sandwiched by the magnetic members 16.
　この後、前述したように、各コア１１の上部１１ｂとケース１４の上部が研磨され、磁気ヘッド１０Ｂの接触面１０ｓが形成される（図８参照）。そして、磁気ヘッド１０Ｂは、前述の磁気ヘッド１０Ａと同様に、磁気記録媒体処理装置１００の本体１ａ内に設置される。 Thereafter, as described above, the upper portion 11b of each core 11 and the upper portion of the case 14 are polished to form the contact surface 10s of the magnetic head 10B (see FIG. 8). Then, the magnetic head 10B is installed in the main body 1a of the magnetic recording medium processing apparatus 100 as in the above-described magnetic head 10A.
　次に、外部で発生した電磁波および磁界の、磁気ヘッド１０Ｂ周辺での分布状態を、図８を参照しながら説明する。 Next, the distribution of electromagnetic waves and magnetic fields generated outside the magnetic head around the magnetic head 10B will be described with reference to FIG.
　前述したように、外部からの電磁波および磁界は、磁気ヘッド１０Ｂのケース１４である程度遮蔽されるが、一部は、ケース１４を透過したり、ケース１４の開口部１４ａを通過したりして、内部に進入する。 As described above, the electromagnetic wave and magnetic field from the outside are shielded to some extent in the case 14 of the magnetic head 10B, but a part of the electromagnetic wave and the magnetic field pass through the case 14 or pass through the opening 14a of the case 14 Enter the inside.
　ケース１４内に進入した電磁波および磁界は、図８（ａ）および（ｃ）に点線で示すように、コア１１の側方にある磁性体１６に引き寄せられるように偏在し、コア１１に及びにくくなる。これにより、外部からの電磁波および磁界によりコイル１２（図７）に発生する起電力が低減され、磁気カード２０の磁気情報の読み取り時に、読み取り信号に重畳するノイズが減少して、Ｓ／Ｎ比が向上する。 The electromagnetic wave and magnetic field entering the case 14 are distributed so as to be attracted to the magnetic body 16 on the side of the core 11 as shown by dotted lines in FIGS. Become. As a result, the electromotive force generated in the coil 12 (FIG. 7) by the electromagnetic wave and magnetic field from the outside is reduced, and the noise superimposed on the read signal is reduced when the magnetic information of the magnetic card 20 is read. Improve.
　つまり、上記第２実施形態の磁気ヘッド１０Ｂおよび該磁気ヘッド１０Ｂを備えた磁気記録媒体処理装置１００において、ノイズの原因となる、外部からの電磁波および磁界の影響を低減させることができる。そしてこの結果、磁気カード２０に対する磁気情報の読み取り性能を向上させることが可能となる。 That is, in the magnetic head 10B of the second embodiment and the magnetic recording medium processing apparatus 100 including the magnetic head 10B, it is possible to reduce the influence of the electromagnetic wave and the magnetic field from the outside which cause noise. As a result, it is possible to improve the reading performance of the magnetic information to the magnetic card 20.
　また、コア１１を挟むように磁性体１６をケース１４内に設けているので、磁気ヘッド１０Ｂのサイズやケース１４を従来のものと変えることなく実現することができる。この結果、既存の磁気記録媒体処理装置に備わる磁気ヘッドを、本第２実施形態の磁気ヘッド１０Ｂに容易に置き換えることが可能となる。 Further, since the magnetic body 16 is provided in the case 14 so as to sandwich the core 11, the size can be realized without changing the size of the magnetic head 10B or the case 14 from the conventional one. As a result, the magnetic head provided in the existing magnetic recording medium processing apparatus can be easily replaced with the magnetic head 10B of the second embodiment.
　また、上記第２実施形態では、磁性体１６をコア１１の一側方（Ｌ方向側またはＲ方向側）に設けているので、第１実施形態のように磁性体１５をコア１１の両側方に設けるより、磁気ヘッド１０Ｂの内部の構造を簡単にすることができる。 Further, in the second embodiment, since the magnetic body 16 is provided on one side (the L direction side or the R direction side) of the core 11, the magnetic body 15 is provided on both sides of the core 11 as in the first embodiment. The internal structure of the magnetic head 10B can be simplified as compared with the case of FIG.
　また、上記第２実施形態では、磁性体１６の厚みを、コア１１の厚みと同等以上の厚みにしているので、コア１１の厚みより薄くする場合と比べて、外部からの電磁波および磁界を効果的に偏在させて、コア１１に及び難くすることができる。 Further, in the second embodiment, since the thickness of the magnetic body 16 is equal to or greater than the thickness of the core 11, compared to the case where the thickness is thinner than the thickness of the core 11, electromagnetic waves and magnetic fields from the outside are effective. It can be unevenly distributed to make the core 11 difficult.
　さらに、上記第２実施形態では、磁性体１６を構成する磁性片１６ａの側面形状を、コア１１を構成するコア片１１ａの側面形状と同一にしているので、コア片１１ａと同一の製造設備を用いて、磁性片１６ａを製造することができ、製造効率を向上させることが可能となる。 Furthermore, in the second embodiment, the side shape of the magnetic piece 16a constituting the magnetic body 16 is the same as the side shape of the core piece 11a constituting the core 11. Therefore, the same manufacturing equipment as the core piece 11a is provided. The magnetic piece 16a can be manufactured using this, and the manufacturing efficiency can be improved.
　本発明は、以上述べた実施形態以外にも、種々の実施形態を採用することができる。たとえば、以上の実施形態では、コア１１の体積より大きな体積を有する磁性体１５、１６をケース１４内に設けた例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、図９に示す第３実施形態の磁気ヘッド１０Ｃのように、コア１１の体積より小さな体積を有する磁性体１７、１８をケース１４内に設けてもよい。 The present invention can adopt various embodiments other than the embodiments described above. For example, although the example which provided the magnetic bodies 15 and 16 which have volume larger than the volume of the core 11 in case 14 was shown in the above embodiment, this invention is not limited only to this. Other than this, for example, as in the magnetic head 10C of the third embodiment shown in FIG. 9, magnetic bodies 17 and 18 having volumes smaller than the volume of the core 11 may be provided in the case 14.
　また、たとえば、図１０に示す第４実施形態の磁気ヘッド１０Ｄのように、コア１１の厚みおよび体積と同等の厚みおよび体積を有する磁性体１９をケース１４内に設けてもよい。 Further, for example, as in the magnetic head 10D of the fourth embodiment shown in FIG. 10, the magnetic body 19 having the same thickness and volume as the thickness and volume of the core 11 may be provided in the case 14.
　上記のようにしても、外部からの電磁波および磁界の影響を低減させることができ、この結果、磁気カード２０に対する磁気情報の読み取り性能を向上させることが可能となる。 Also in the above manner, the influence of the electromagnetic wave and the magnetic field from the outside can be reduced, and as a result, the reading performance of the magnetic information to the magnetic card 20 can be improved.
　また、第１、第２、および第４実施形態では、各磁性体１５、１６、１９の側面の面積、厚み、および体積を同一にした例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、図９に示す第３実施形態の磁気ヘッド１０Ｃのように、各コア１１のケース１４側に配置される磁性体１７と、各コア１１の間に配置される磁性体１８とは、側面の面積、厚み、または体積が異なっていてもよい。 In the first, second, and fourth embodiments, an example is shown in which the area, thickness, and volume of the side surfaces of the magnetic members 15, 16, 19 are the same, but the present invention is limited thereto. It is not a thing. Other than this, for example, as in the magnetic head 10C of the third embodiment shown in FIG. 9, the magnetic body 17 disposed on the case 14 side of each core 11 and the magnetic body 18 disposed between each core 11 And the area, thickness, or volume of the side surface may be different.
　この場合、各コア１１の間の磁性体１８の側面の面積、厚み、または体積より、各コア１１のケース１４側の磁性体１７の側面の面積、厚み、または体積を大きくした方が、外部からの電磁波および磁界の影響を効果的に低減させることができる。 In this case, if the area, thickness or volume of the side surface of the magnetic body 17 on the case 14 side of each core 11 is larger than the area, thickness or volume of the side surface of the magnetic body 18 between the cores 11 The effects of electromagnetic waves and magnetic fields from the light source can be effectively reduced.
　また、第１および第２実施形態では、各磁性体１５、１６を同一の材質で形成した例を挙げたが、本発明はこれのみに限定するものではない。これ以外に、たとえば、各コア１１のケース１４側に配置される磁性体と、各コア１１の間に配置される磁性体とは、材質が異なっていてもよい。 Moreover, although the example which formed each magnetic body 15 and 16 with the same material was given in 1st and 2nd embodiment, this invention is not limited only to this. Other than this, for example, the materials of the magnetic body disposed on the case 14 side of each core 11 and the magnetic body disposed between each core 11 may be different.
　この場合、各コア１１の間の磁性体の材質の透磁率より大きい透磁率を有する材質で、各コア１１のケース１４側の磁性体を形成した方が、外部からの電磁波および磁界の影響を効果的に低減させることができる。 In this case, if the magnetic material on the case 14 side of each core 11 is made of a material having a magnetic permeability larger than the magnetic permeability of the material of the magnetic material between the cores 11, the influence of electromagnetic waves and magnetic fields from the outside can be obtained. It can be effectively reduced.
　また、以上の実施形態では、コア１１とコイル１２を２つずつ備え、磁気カード２０の磁気ストライプ２０ｓから磁気情報を読み取る磁気ヘッド１０（１０Ａ～１０Ｄ）に、本発明を適用した例を示した。然るに、本発明はこれ以外に、たとえば、コアとコイルを１つまたは３つ以上ずつ備えた磁気ヘッドにも、適用することが可能である。 Further, in the above embodiment, an example in which the present invention is applied to the magnetic head 10 (10A to 10D) provided with two cores 11 and two coils 12 and reading magnetic information from the magnetic stripe 20s of the magnetic card 20 is shown. . However, the present invention can be applied to other than this, for example, to a magnetic head provided with one or more cores and one or more coils.
　また、以上の実施形態では、図５（ａ）に示したように、コア１１の水平部１１ｃの周囲にコイル１２を配置した例を挙げたが、本発明はこれのみに限定するものではない。これ以外に、たとえば、コア１１の垂直部１１ｄ（図５（ａ））の周囲にコイルを配置してもよい。この場合、いずれか一方の垂直部１１ｄにコイルを配置してもよいし、両方の垂直部１１ｄにコイルを配置してもよい。また、コア１１の水平部１１ｃと垂直部１１ｄの両方に渡ってコイルを配置してもよい。 Moreover, in the above embodiment, as shown to Fig.5 (a), although the example which arrange | positioned the coil 12 around the horizontal part 11c of the core 11 was given, this invention is not limited only to this. . In addition to this, for example, a coil may be disposed around the vertical portion 11 d (FIG. 5A) of the core 11. In this case, the coil may be disposed in one of the vertical portions 11 d or may be disposed in both of the vertical portions 11 d. Alternatively, the coil may be disposed across both the horizontal portion 11 c and the vertical portion 11 d of the core 11.
　また、たとえば、磁気カードや通帳などの磁気記録媒体の磁気記録部に対して磁気情報の読み取りと書き込みの少なくとも一方を行う磁気ヘッドにも、本発明を適用することは可能である。磁気記録媒体に磁気情報の書き込みを行う磁気ヘッドに本発明を適用した場合、該書き込みの性能を向上させることが可能となる。 Further, for example, the present invention can be applied to a magnetic head which performs at least one of reading and writing of magnetic information to a magnetic recording portion of a magnetic recording medium such as a magnetic card or a passbook. When the present invention is applied to a magnetic head for writing magnetic information to a magnetic recording medium, the writing performance can be improved.
　さらに、たとえば、磁気ストライプ検出センサ３を構成する小型の磁気ヘッドにも、本発明を適用することは可能である。 Furthermore, for example, the present invention can be applied to a small magnetic head that constitutes the magnetic stripe detection sensor 3.
　さらに、以上の実施形態では、磁気ストライプ２０ｓが裏面２０ｂに設けられた磁気カード２０を取り扱う磁気記録媒体処理装置１００に、本発明を適用した例を示した。然るに、本発明はこれ以外にも、たとえば、磁気ストライプが表面と裏面の少なくとも一方に設けられた磁気カードを取り扱う磁気記録媒体処理装置にも、適用することが可能である。 Furthermore, in the above embodiment, an example in which the present invention is applied to the magnetic recording medium processing apparatus 100 for handling the magnetic card 20 provided with the magnetic stripe 20s on the back surface 20b has been shown. However, the present invention can also be applied to, for example, a magnetic recording medium processing apparatus that handles a magnetic card having a magnetic stripe provided on at least one of the front surface and the back surface.
　また、磁気カードだけに限らず、磁気ストライプを備えた磁気ＩＣカードや通帳などのような磁気記録媒体に対して、磁気ヘッドにより磁気情報の読み取りと書き込みの少なくとも一方を行う磁気記録媒体処理装置にも、本発明を適用することは可能である。 The present invention is also directed to a magnetic recording medium processing apparatus that performs at least one of reading and writing of magnetic information by a magnetic head to a magnetic recording medium such as a magnetic IC card or a passbook or the like provided with a magnetic stripe as well as a magnetic card. It is also possible to apply the present invention.
　本発明は、ＡＴＭやＣＤなどの取引処理装置に搭載されるカードリーダ、カードリーダライタ、もしくは通帳リーダ、またはカード認証端末に搭載されるカードリーダなど、磁気記録媒体に対して磁気情報の読み取りまたは書き込みを行う磁気記録媒体処理装置全般に利用することができる。 The present invention can read or read magnetic information from a magnetic recording medium, such as a card reader, a card reader / writer, a passbook reader, or a card reader, mounted on a card authentication terminal, mounted on a transaction processing apparatus such as ATM or CD. The present invention can be generally used for magnetic recording medium processing devices that perform writing.
　　１ｃ　挿入口
　　１１　コア
　　１２　コイル
　　１４　ケース
　　１５、１６、１７、１８、１９　磁性体
　　１０、１０Ａ、１０Ｂ、１０Ｃ、１０Ｄ　磁気ヘッド
　　２０　磁気カード
　　１００　磁気記録媒体処理装置
　　Ｌ、Ｒ　コアの厚み方向 1c insertion slot 11 core 12 coil 14 case 15, 16, 17, 18, 19 magnetic body 10, 10A, 10B, 10C, 10D magnetic head 20 magnetic card 100 magnetic recording medium processing device L, R core thickness direction

Claims (13)

  1. 　コアと、
    　前記コアの周囲に配置されたコイルと、
    　前記コアおよび前記コイルを収容した金属製のケースと、を備え、
    　磁気記録媒体に対して磁気情報の読み取りまたは書き込みを行う磁気ヘッドにおいて、
    　前記ケースの内部の前記コアの側方に磁性体を設けた、ことを特徴とする磁気ヘッド。     With the core
    A coil disposed around the core;
    And a metal case accommodating the core and the coil.
    In a magnetic head for reading or writing magnetic information to a magnetic recording medium,
    A magnetic head characterized in that a magnetic body is provided on the side of the core inside the case.
  2. 　請求項１に記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの厚み方向の側方に配置され、外部からの電磁波および磁界を、前記コアに及ばないように偏在させる、ことを特徴とする磁気ヘッド。     In the magnetic head according to claim 1,
    The magnetic head is disposed laterally of the core in the thickness direction, and distributes an external electromagnetic wave and a magnetic field so as not to reach the core.
  3. 　請求項１または請求項２に記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの両側方に設けられている、ことを特徴とする磁気ヘッド。     The magnetic head according to claim 1 or 2
    The magnetic head is provided on both sides of the core.
  4. 　請求項１または請求項２に記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの一側方に設けられている、ことを特徴とする磁気ヘッド。     The magnetic head according to claim 1 or 2
    The magnetic head is provided on one side of the core.
  5. 　請求項１ないし請求項４のいずれかに記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの材質と同等以上の透磁率を有する材質で形成されている、ことを特徴とする磁気ヘッド。     The magnetic head according to any one of claims 1 to 4.
    The magnetic head, wherein the magnetic body is formed of a material having a magnetic permeability equal to or higher than that of the material of the core.
  6. 　請求項１ないし請求項４のいずれかに記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの材質より小さい透磁率を有する材質で形成されている、ことを特徴とする磁気ヘッド。     The magnetic head according to any one of claims 1 to 4.
    The magnetic head, wherein the magnetic body is formed of a material having a permeability smaller than that of the material of the core.
  7. 　請求項１ないし請求項６のいずれかに記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの厚みと同等以上の厚みを有している、ことを特徴とする磁気ヘッド。     The magnetic head according to any one of claims 1 to 6.
    The magnetic head has a thickness equal to or greater than the thickness of the core.
  8. 　請求項１ないし請求項６のいずれかに記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの厚みより薄い厚みを有している、ことを特徴とする磁気ヘッド。     The magnetic head according to any one of claims 1 to 6.
    The magnetic head has a thickness thinner than that of the core.
  9. 　請求項１ないし請求項８のいずれかに記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアと同一の側面形状を有している、ことを特徴とする磁気ヘッド。     The magnetic head according to any one of claims 1 to 8.
    The magnetic head, wherein the magnetic body has the same side shape as the core.
  10. 　請求項１ないし請求項８のいずれかに記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアと異なる側面形状を有している、ことを特徴とする磁気ヘッド。     The magnetic head according to any one of claims 1 to 8.
    The magnetic head according to claim 1, wherein the magnetic body has a side shape different from that of the core.
  11. 　請求項１ないし請求項１０のいずれかに記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの体積と同等以上の体積を有している、ことを特徴とする磁気ヘッド。     The magnetic head according to any one of claims 1 to 10.
    The magnetic head has a volume equal to or greater than that of the core.
  12. 　請求項１ないし請求項１０のいずれかに記載の磁気ヘッドにおいて、
    　前記磁性体は、前記コアの体積より小さい体積を有している、ことを特徴とする磁気ヘッド。     The magnetic head according to any one of claims 1 to 10.
    The magnetic head has a volume smaller than that of the core.
  13. 　請求項１ないし請求項１２のいずれかに記載の磁気ヘッドと、
    　磁気記録媒体が挿入される挿入口と、を備え、
    　前記挿入口から挿入された磁気記録媒体に対して、前記磁気ヘッドにより磁気情報の読み取りまたは書き込みを行う、ことを特徴とする磁気記録媒体処理装置。     A magnetic head according to any one of claims 1 to 12.
    And an insertion slot into which the magnetic recording medium is inserted,
    A magnetic recording medium processing apparatus, wherein the magnetic head reads or writes magnetic information with respect to a magnetic recording medium inserted from the insertion port.
PCT/JP2013/003523 2013-06-05 2013-06-05 Magnetic head and magnetic recording medium processing device WO2014195993A1 (en)

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CN201410232983.1A CN104239837B (en) 2013-06-05 2014-05-29 Magnetic head, magnetic recording medium processing device

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CN116030844B (en) * 2023-03-27 2023-06-16 太阳神(珠海)电子有限公司 Manufacturing method of novel SMT magnetic head and magnetic head thereof

Citations (3)

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JPS58127415U (en) * 1982-02-22 1983-08-29 ティーディーケイ株式会社 magnetic head
JPS63231712A (en) * 1987-03-20 1988-09-27 Akai Electric Co Ltd Magnetic head and its manufacture
JPH11353605A (en) * 1998-06-08 1999-12-24 Alps Electric Co Ltd Magnetic head

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JPH0654527B2 (en) * 1984-11-26 1994-07-20 ソニー株式会社 Magnetic head
JPH06103521A (en) * 1992-09-21 1994-04-15 Canon Electron Inc Magnetic recording and reproducing element
JP3851815B2 (en) * 2001-12-28 2006-11-29 アルプス電気株式会社 Magnetic head device

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS58127415U (en) * 1982-02-22 1983-08-29 ティーディーケイ株式会社 magnetic head
JPS63231712A (en) * 1987-03-20 1988-09-27 Akai Electric Co Ltd Magnetic head and its manufacture
JPH11353605A (en) * 1998-06-08 1999-12-24 Alps Electric Co Ltd Magnetic head

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