JP2008027515A - Magnetic head device and magnetic card reader - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnetic head device which requires no specialist in charge of welding and which does not require inventory management nor adjustment of processes, and to provide a magnetic card reader thereof. <P>SOLUTION: The magnetic head device is provided with a magnetic head 24 which reads magnetic information recorded on a magnetic card; a head holder 1 which has an upper opening part 1a for inserting the magnetic head 24, a lower opening part having curl parts 1b which catch the core surface 24a of the magnetic head 24 inserted from the upper opening part 1a while the core surface 24a is exposed, and a peripheral wall part holding the peripheral surface of the magnetic head 24; and a head support 2 which holds the head holder 1 holding the magnetic head 24 inside a device main body. Protrusion parts 1c are formed at mutually facing side parts of the head holder 1. When the head holder 1 is mounted to the opening part 2a of the head support 2, the protrusion parts 1c are fitted into recessed parts 2d to be fixed. Thus, the magnetic head 24 becomes easy to assemble, and precision in assembling and reading performance are improved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a magnetic head device for reading a magnetic card and a magnetic card reading device using the magnetic head device.

  First, the configuration of a conventional magnetic card reader will be described.

  11 is an exploded perspective view of a card reading device including a conventional magnetic head device, FIG. 12 is a perspective view of the conventional card reading device, and FIG. 13 is a perspective view of the card reading device mounted on a panel of a host device. It is.

  In FIG. 11, reference numeral 21 denotes a magnetic card reading device main body (hereinafter referred to as a main body case), and 22 denotes a card insertion portion provided at an insertion port of the magnetic card reading device 23. Reference numeral 24 denotes a magnetic head, reference numeral 25 denotes a head support plate for holding the magnetic head 24, and reference numeral 25a denotes a pin hole provided in the head support plate 25 into which the guide pins 29 and 30 of the main body case 21 are inserted. Reference numeral 26 denotes a magnetic head device in which a magnetic head 24 for reading information on the magnetic card 32 is fixed by spot welding to the tip of the head support plate 25. A winding spring 27 applies an urging force to the magnetic head 24 via the head support plate 25. Further, the main body case 21 detects that the hemispherical convex portion 28 serving as a rotation fulcrum of the magnetic head device 26 and the guide pins 29 and 30 for controlling the operation direction of the magnetic head device 26 and the magnetic card 32 have entered a predetermined position. Card detection switch 31 is provided.

  The guide pin 29 is inserted into the apex of the hemispherical convex portion 28 at the rear portion of the main body case 21, and the other guide pin 30 is inserted into the central portion of the main body case 21.

  Guide pins 29 and 30 are inserted into the two pin holes 25a of the head support plate 25, and a mounting screw having a winding spring 27 inserted into a nut portion in the vicinity of the guide pin 30 is screwed to a set height. A magnetic card reader 23 shown in FIG. 12 is an assembly of these components.

  When the magnetic card 32 is inserted from the card insertion unit 22 of the magnetic card reader 23 mounted on the panel 33 of the host device shown in FIG. 13, the magnetic card 32 is inserted into the magnetic head 24 in the magnetic head device 26 shown in FIG. The magnetic card 32 pushes up the magnetic head device 26 against the urging force of the winding spring 27. The center of rotation of the magnetic head 24 is the base of the hemispherical convex portion 28 and the guide pin 29, and is lifted along the front guide pin 30.

  Then, by inserting the magnetic card 32 into the back side of the main body case 21, the magnetic head 24 incorporated in the magnetic head device 26 reads the magnetic information on the magnetic stripe of the magnetic card 32 and sends it to the host device. The information is sent to the CPU of the main printed board 35 via the head printed board 34, and the encrypted information is sent to the host computer via the telephone line.

  In recent years, the mass production assembly process of information equipment products and home appliances including card readers has shifted from a conventional line assembly production system using a conveyor to a cell production system for individual assembly.

  Incidentally, fixing of the magnetic head and the head support plate in a magnetic head device mounted on a conventional magnetic card reader is performed by spot welding, an adhesive, or the like.

  If there is a dent or protrusion on the outer periphery of the magnetic head 24, the head support plate 25 can be easily fixed to the magnetic head 24.

The shield case covering the outer periphery of the magnetic head 24 is made by deep drawing a steel material. However, in the head assembly process, in order to facilitate the insertion of the bobbin assembly which is an internal component of the magnetic head, there is no dent in the shield case inner surface direction. In addition, when a plurality of R-polishing processes on the core surface are performed simultaneously on the processed surface, the shield that is the outer periphery of the magnetic head due to the fact that it is easier to hold the head if there is no protrusion on the outer peripheral surface of the shield case. Each surface of the case is made of a flat surface. Therefore, the fixing method of the magnetic head to the head support plate in the magnetic head device is generally spot welding or fixing with an adhesive (for example, see Patent Document 1 and Non-Patent Document 1).
JP-A-10-198752 (FIG. 1) “Matsushita Electric Industrial Product Catalog 2004”, Matsushita Industrial Information Equipment Co., Ltd., 2004, p. 3

  As described above, in the conventional magnetic head device, the magnetic head is sandwiched between both side surfaces of the head support plate and fixed by spot welding from the outside of the bent portions on both side surfaces. It is difficult to adjust the height of the magnetic head due to the displacement of the welding tip, and a special welding person is required.

  In addition, the magnetic head device needs to be prepared in a separate process prior to the main assembly as an assembly part to be supplied to the assembly line in the same way as other card reader parts. There is a problem that time cannot be shortened.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic head device that does not require specialized welding personnel and that does not require inventory management or process adjustment, and a magnetic card reader using the magnetic head device.

  The magnetic head device of the present invention has a head holder interposed between the magnetic head and the head support means. The magnetic head is inserted through the upper opening of the head holder having openings at the upper and lower parts, and the lower part. The main feature is that the magnetic head is held with the core surface of the magnetic head exposed from the opening, and the head holder is held by the head support means.

  The magnetic head device of the present invention has a head holder interposed between the magnetic head and the head support means. The magnetic head is inserted through the upper opening of the head holder having openings at the upper and lower parts, and the lower part. Since the magnetic head is held with the core surface of the magnetic head exposed from the opening and the head holder is held by the head support means, the magnetic head can be easily attached to the head support without using a tool. The head holder into which the magnetic head is inserted can be easily fitted to the head support.

  In addition, since the magnetic head and the head support are not spot welded, the magnetic head device can be assembled in cell production, which is effective in reducing man-hours and stagnating stock during the production process.

  The present invention eliminates the need for specialized welding personnel, allows a general worker to engage in the assembly of the magnetic head assembly, and eliminates the need for inventory management and process adjustment, and a magnetic head using the same. The purpose of providing a card reader is a magnetic head in which a head holder is interposed between the magnetic head and the head support means, and the magnetic head is inserted from the upper opening of the head holder having openings at the upper and lower portions. The magnetic head is held with the core surface of the magnetic head exposed from the lower opening, and the head holder is held by the head support means.

  According to a first aspect of the present invention, there is provided a magnetic head for reading magnetic information recorded on a magnetic card, an upper opening for inserting the magnetic head, and a magnetic head inserted from the upper opening. A lower opening having a holding portion for receiving the core surface in an exposed state, a head holder having a peripheral wall portion for holding the peripheral surface of the magnetic head, and a head support for holding the head holder holding the magnetic head inside the apparatus main body And a magnetic head device.

  According to this configuration, a special welding person is not required, and a general worker can engage in assembling the magnetic head assembly. In addition, since the assembly process is not a separate process but can be performed consistently, inventory management and process adjustment are not required.

  According to a second invention for solving the above-described problems, the head holder and the head support means are engaging means for engaging a projection formed on one of the head holder and the head support means and a recess formed on the other. Therefore, both are engaged only by mounting the head holder on the head support means, welding is not required, and assembly can be easily performed.

  According to a third aspect of the present invention for solving the above-described problem, the engaging means includes a protrusion provided on the opposite side of the head holder and a recess provided in the head support of the head support. Thus, the head holder can be securely fixed to the head support means by the engagement between the protrusion and the recess.

  According to a fourth aspect of the present invention for solving the above-mentioned problems, the engaging means is formed by bending the concave portion provided in the opposite side portion of the head holder and the head supporting portion of the head supporting means into the concave portion. The head holder can be reliably fixed to the head support means by pushing the thin plate portion into the recess of the head holder with a tool.

  The fifth invention made to solve the above problems is that the head holder is made of a synthetic resin molded product, so that the assembly accuracy is higher than that of a magnetic card reader equipped with a spot-welded magnetic head assembly. The defect rate can be reduced even when reading a magnetic card.

  A sixth invention made to solve the above problems is recorded on a main body case on which the magnetic head device having the above-described configuration is mounted, a magnetic card insertion portion inserted from the outside, and the inserted magnetic card. And a means for reading the magnetic information with the magnetic head device and communicating with a host computer via a communication line. The magnetic head is spot welded directly to the head support. In comparison, since the magnetic head is accurately inserted into the head holder, which is a resin molded product, and is mounted on the head support without play, the tilt of the magnetic head is eliminated and the reading performance is improved.

(Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to FIGS.

  1 is an exploded view showing the overall configuration of the head support according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing the components of the magnetic head according to Embodiment 1, and FIG. 3 is this embodiment. FIG. 4 is a perspective view showing a constituent part of a head support in the first embodiment, and FIG. 5 is a perspective view showing a magnetic head device in the first embodiment. FIG.

  In FIG. 1, 1 is a head holder, 2 is a head support, and 24 is a magnetic head. The magnetic head 24 is inserted into the head holder 1 from the core surface 24a (see FIG. 2), and the core surface 24a of the magnetic head 24 is protruded from the curled portion 1b (see FIG. 3) on the bottom surface of the head holder 1. The tip of the support 2 is fitted.

  In FIG. 2, 24 is a magnetic head, 24a is a core surface that directly contacts the card, and 24b is a terminal surface having electrodes. The core surface 24 a is on the bottom surface of the magnetic head 24, and the terminal surface 24 b is on the top surface of the magnetic head 24. Note that the four side surfaces of the magnetic head 24 are flat surfaces having no irregularities.

  3A is an overall overview of the head holder, and FIG. 3B is a partially enlarged sectional view thereof. 1 is a head holder for mounting the magnetic head 24, 1a is an upper opening portion, 1b is a curled portion having a shape that holds the head toward the center of the magnetic head 24 in a lower opening portion, and 1c is an outer side of the head holder 1. The protrusion part installed in the side is shown.

  In FIG. 4, 2 is a head support for holding the head holder 1, 2a is an opening for inserting the head holder 1, 2b is a bent portion for increasing the rigidity of the head support 2 and holding the head holder 1, and 2c is A support convex surface extended from the bent portion 2b, 2d is a concave portion (square hole) provided in the support convex surface 2c for fitting with the projection 1c of the head holder 1, and 2e is magnetic with the head holder 1 inserted. It is an L-shaped bent portion that presses the terminal surface 24b of the head 24 downward, and is bent at an angle of about 90 ° and a length of about 2 mm toward the center from both side surfaces of the head support 2.

  As shown in FIG. 5, the magnetic head 24 is inserted into the head holder 1, and the head support 2 is fitted and integrated to form a magnetic head device.

  Hereinafter, an assembly method of the above configuration will be described.

  First, as described above, the shape of the magnetic head 24 is a substantially rectangular parallelepiped, and several head terminals protrude from the terminal surface 24b on the top surface, and the bottom surface is a substantially R-shaped core surface 24a having a core for reading magnetic data. The four side surfaces are flat surfaces with no irregularities.

  The magnetic head 24 is inserted from the core surface 24a side through the upper opening 1a of the head holder 1 until it is in close contact with the curled portion 1b on the bottom surface. The inner radius R of the curled portion 1b is the same as the R dimension of the core surface 24a of the magnetic head 24, and the outer radius R increases from the side surface toward the center, and the thickness of the curled portion 1b decreases as it goes to the central portion. is doing. This is because the inserted magnetic card comes into contact with the core surface 24a of the magnetic head 24 after coming into contact with the curled portion 1b, so that the outer surface of the curled portion 1b continuously contacts the core surface 24a of the magnetic head 24 as smoothly as possible. .

  The head holder 1 may be made of a resin material such as POM (polyacetal), PP (polypropylene), ABS (acrylonitrile butadiene styrene).

  Next, the magnetic head 24 inserted into the head holder 1 is inserted in the downward direction toward the opening 2a made of a square hole for inserting the head holder 1 in the head support 2.

  As described above, the head support 2 is formed with the support convex surface 2c from the bent portions 2b on both side surfaces, and is provided with a concave portion 2d (square hole) therein. The head holder 1 is inserted into the square hole 2d from the lower side of the supporting convex surface 2c, and the protrusions 1c provided on the two opposing surfaces of the side surface of the head holder 1 are fitted. As an example of the protrusion 1c, the cross section may have a substantially triangular shape. The reason why the protrusion 1c is tapered is to facilitate insertion.

  Further, as described above, the L-shaped bent portion 2e is provided on the upper side of the support convex surface 2c of the head support 2 toward the center. The bent portion 2e presses the terminal surface 24b of the magnetic head 24 downward.

  Further, by moving the starting point of the L-shaped bending position of the bending portion 2e and the hole position of the square hole 2d in an interlocking manner, this mechanism can be used for other models having different set heights of the magnetic head 24. .

  Further, in order to eliminate the looseness of the fitting dimension, Δ-shaped ribs are provided at several places on each side surface of the protrusion 1c of the head holder 1, and the shape is such that the apex of the Δ-shaped ribs is crushed when fitted. Also good.

  Further, by providing a snap fit claw at the upper end of the upper opening 1a of the head holder 1, the L-shaped bent portion 2e of the head support 2 may be substituted.

  As described above, according to the first embodiment, by fitting the head support 2 to the head holder 1, the magnetic head 24 and the head holder 1 are reliably integrated and held on the head support 2. Can do.

(Embodiment 2)
The second embodiment of the present invention will be described below with reference to FIGS.

  6 is a perspective view showing a head holder according to the second embodiment of the present invention, FIG. 7 is a perspective view showing a head support in the second embodiment, and FIG. 8 is a head holder according to the second embodiment. FIG. 9 is a perspective view showing a magnetic head device according to the second embodiment. FIG. 9 is a perspective view showing a method of fixing the support body by plastic deformation.

  As shown in FIG. 6, the head holder 3 has an upper opening 3 a and a curled portion 3 b having a shape that holds the head toward the center of the magnetic head 24, and two outer surfaces facing each other. Is provided with a substantially rectangular recess 3c.

  Further, as shown in FIG. 7, on the support convex surface 4d provided on the extended portion of the bent portion 4b on both sides of the head support 4 having the square hole 4a, a thin plate portion 4c is formed by punching both sides. Yes.

  Hereinafter, an assembly method of the above configuration will be described.

  First, the magnetic head 24 (see FIG. 2) is inserted from the core surface 24a side through the upper opening 3a of the head holder 3 until it is in close contact with the curled portion 3b on the bottom surface.

  Next, the magnetic head 24 inserted into the head holder 3 is inserted from the lower side toward the upper side toward the square hole 4 a for inserting the magnetic head holder at the tip of the head support 4. That is, the head holder 3 is inserted from the lower side of the support convex surface 4d of the head support 4 toward the square hole 4a, and the head support 4 is directly above the concave portions 3c provided on the two opposite sides of the head holder 3. The thin plate portion 4c is set so as to match.

  Next, as shown in FIG. 8, with the head holder 3 set on the head support 4, the punch 9 is driven to the head side simultaneously from both sides, and the thin plate portion 4 c of the head support 4 is provided on the head holder 3. They are integrated by being plastically deformed and embedded so as to bite into the upper opening 3a.

  Further, the width of the thin plate portion 4c is slightly larger than the width dimension of the upper opening (square hole) 3a provided in the head holder 3 so as not to cause backlash during fitting. This slightly larger portion may be a part to be fitted or the whole.

  Further, an L-shaped bent portion 4e is provided on the upper side of the support convex surface 4d of the head support 4 toward the center. The bent portion 4e presses the terminal surface 24b of the magnetic head 24 downward.

  As described above, according to the second embodiment, the magnetic head 24 and the head holder 3 are reliably integrated with the head support 4 by plastically deforming and fixing the head support 4 to the head holder 3. Can be held.

  FIG. 9 shows a magnetic head device in which these are integrated in this way.

(Embodiment 3)
The third embodiment of the present invention will be described below with reference to FIG.

  FIG. 10 is an exploded perspective view showing the magnetic card reader according to the third embodiment of the present invention including the magnetic head device according to the first embodiment.

  In addition, about the structure similar to Embodiment 1, the same number is attached | subjected and detailed description is abbreviate | omitted.

  In FIG. 10, 21 is a body case, 22 is a card insertion part, 23 is a magnetic card reader, 24 is a magnetic head for reading data, 1 is a head holder for inserting the magnetic head 24, 2 is fitted to the head holder 1 at the tip. The head support 2 to be combined is a magnetic head device 10 combining three points.

  In the third embodiment, a head printed circuit board 34 is attached to the terminal surface on the upper surface of the magnetic head constituting the magnetic head device 10, and magnetic information taken out from the magnetic head 24 is sent to the main printed circuit board 35 on which the CPU is mounted. It is a high-order device, that is, a magnetic card reader.

  As a configuration, the magnetic head device 10 is inserted into two guide pins 29 and 30 projecting from the main body case 21, and a winding spring 27 that biases the magnetic head 24 downward between the guide pins 29 and 30. Is attached.

  When the magnetic card 32 is inserted into the main body case 21, the magnetic head 24 incorporated in the magnetic head device 10 rides on the magnetic card 32 and reads the magnetic information on the magnetic card.

  The operation of the magnetic card reader configured as described above will be described below.

  As shown in FIG. 10, when the magnetic card 32 is inserted from the card insertion portion 22 on the front surface of the main body case 21, the magnetic head 24 of the magnetic head device 10 that reads the information on the magnetic card 32 becomes the magnetic card 32. Lifts upon insertion. The core surface 24a of the magnetic head portion of the magnetic head device 10 contacts the magnetic stripe of the magnetic card 32 to read magnetic information. The read magnetic information is sent to the CPU of the main printed circuit board 35 via the head printed circuit board 34, and the encrypted information is communicated to the host computer through the telephone line.

  As described above, the magnetic card reader is equipped with the magnetic head device in which the magnetic head 24 is inserted into the head holder 1 without play and is securely fitted to the head support. The inclination of is reduced. Therefore, magnetic information can be read accurately.

  The same effect as that of the third embodiment can be obtained when the magnetic card reader is mounted on the magnetic card reader mounted with the magnetic head device according to the second embodiment.

  INDUSTRIAL APPLICABILITY The present invention is used for information equipment products and household appliances including a card reader as a magnetic head device and a magnetic card reader that do not require specialized welding personnel and do not require inventory management or process adjustment. can do.

1 is an exploded view showing the overall configuration of a head support according to Embodiment 1 of the present invention. The perspective view which showed the structure part of the magnetic head in this Embodiment 1. FIG. The perspective view which showed the structure part of the head holder in this Embodiment 1. FIG. The perspective view which showed the structure part of the head support body in this Embodiment 1. FIG. The perspective view which showed the magnetic head apparatus in this Embodiment 1. FIG. The perspective view which showed the head holder in Embodiment 2 of this invention The perspective view which showed the head support body in this Embodiment 2. The perspective view which showed the method of fixing the head holder in this Embodiment 2 to a head support body by plastic deformation. The perspective view which showed the magnetic head apparatus in this Embodiment 2. FIG. An exploded perspective view of a card reader according to a third embodiment of the present invention including the magnetic head device according to the first embodiment. An exploded perspective view of a card reader including a conventional magnetic head device A perspective view of a conventional card reader A perspective view of a card reader mounted on a panel of a host device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Head holder 1a Upper opening part 1b Curl part 1c Projection part 2 Head support body 2a Opening part 2b Bending part 2c Support convex surface 2d Recessed part (square hole)
2e bent part 3 head holder 3a upper opening 3b curl part 3c recessed part 4 head support 4a square hole 4b bent part 4c thin plate part 4d support convex surface 4e bent part 9 punch 10 magnetic head device 21 main body case 22 card insertion part 23 magnetic Card reader 24 Magnetic head 24a Core surface 24b Terminal surface 25 Head support plate 25a Pin hole 26 Magnetic head device 27 Winding spring 28 Hemispherical convex portion 29 Guide pin 30 Guide pin 31 Card detection switch 32 Magnetic card 33 Upper device panel 34 Head printed circuit board 35 Main printed circuit board

Claims (6)

A magnetic head for reading magnetic information recorded on a magnetic card;
An upper opening for inserting the magnetic head, a lower opening having a holding portion for receiving the core surface of the magnetic head inserted from the upper opening in an exposed state, and a peripheral wall for holding the peripheral surface of the magnetic head A head holder having
Head support means for holding the head holder holding the magnetic head inside the apparatus main body;
A magnetic head device comprising: The head holder and the head support means are fixed by engagement means for engaging a projection formed on one of the head holder and the head support means and a recess formed on the other. Item 2. A magnetic head device according to Item 1. The said engaging means is comprised by the projection part provided in the side part which the said head holder opposes, and the recessed part provided in the head support part of the said head support means, It is characterized by the above-mentioned. Magnetic head device. The engaging means includes a concave portion provided on the opposite side portion of the head holder and a thin plate portion provided in the head support portion of the head support means and pushed into the concave portion by bending. The magnetic head device according to claim 2. The magnetic head device according to any one of claims 1 to 4, wherein the head holder is formed of a synthetic resin molded product. A main body case on which the magnetic head device according to any one of claims 1 to 5 is mounted;
An insertion portion of a magnetic card inserted from the outside,
Means for reading magnetic information recorded on the inserted magnetic card with the magnetic head device and communicating with a host computer via a communication line;
A magnetic card reader comprising:

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