JPH103626A - Magnetic head and reader/writer for magnetic recording medium using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a durable magnetic head having a structure without excessively sliding a magnetic recording medium and a reader/writer using it. SOLUTION: A head moving means separating a gap part 3 from a magnetic card 2 when magnetic recording information isn't transferred for the magnetic card 2 is provided on the magnetic head 1. The head moving means it constituted of a rotary shaft 8 penetrated through the magnetic head 1 main body, a hold plate 12 fixed to the side surface of the magnetic head 1 main body, a solenoid coil 7 generating a magnetic field when the magnetic recording information isn't transferred and an engagement shaft 13 moving in the solenoid coil 7 in the one axial direction according to the magnetic field, engaging with the hold plate 12 and tilting the hold plate 12 so as to form a variable acute angle between with the one axial direction. At this time, by fixing a small screw to the engagement shaft 13 through the guide groove 12a of the hold plate 12, the small screw is moved along the guide groove 12a when the magnetic head 1 main body is rotated around the rotary shaft 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a long-life magnetic head and a reader / writer for a magnetic recording medium equipped with the same.

[0002]

2. Description of the Related Art A conventional type reader / writer for a magnetic recording medium has a configuration as shown in FIG. This reader /
The writer is for the magnetic card 2, and the magnetic head 1 having the gap portion 3 is fixed to the frame 11,
The magnetic card 2 is conveyed within 0. When reading and writing magnetic recording information, the magnetic card 2 is guided by a roller 9 provided opposite to the magnetic head 1, and every time the magnetic card 2 slides on the magnetic head 1, a magnetic change is converted into an electric signal at the time of reading in the gap 3. However, at the time of writing, it is performed by converting an electric signal into a magnetic change.

In a magnetic head 1, a pair of magnetic cores provided with a winding coil are butted against each other to form a butting portion, and a gap material 3 is formed by inserting a gap material into one of the butting portions. It is composed.

In general, the magnetic head 1 cannot be used because the gap portion 3 is worn by sliding of the magnetic card 2 and the output of an electric signal is reduced, or the amount of magnetic flux leakage at the time of writing magnetic recording information is changed. (Life), but
If there is no wear on the gap and no chemical corrosion, it can be used semi-permanently.

FIGS. 6 (a) to 6 (d) show an operation of rewriting magnetic recording information on a magnetic card 2 by a magnetic card reader / writer equipped with a combination type magnetic head according to another conventional example. It is. The combination type magnetic head 4 used here is formed by integrating a writing section 4a and a reading section 4b.

In the rewriting operation, first, FIG.
As shown in FIG. 6B, in the reading step, the magnetic recording information previously recorded by the reading unit 4b is read from the magnetic recording unit of the magnetic card 2 conveyed in one direction in the conveyance path 10, and then, as shown in FIG. As shown in the drawing, as the writing step, new magnetic recording information is written by the writing section 4a to the magnetic recording section of the magnetic card 2 transported in the transport path 10 in the direction opposite to one direction.

Subsequently, as shown in FIG. 6 (c), as a read check step, the magnetic recording section of the magnetic card 2 which has been conveyed again in one direction in the conveyance path 10 from the magnetic recording section to the read section 4
b, the newly recorded magnetic recording information is read out. Finally, as shown in FIG. 6D, as a card discharging step, the magnetic card 2 is moved in a direction opposite to one direction in the transport path 10.
Is conveyed again and discharged.

That is, in the case of the rewriting operation by the magnetic card reader / writer, when one magnetic card 2 is targeted, the magnetic card 2 slides on the combination type magnetic head 4 a total of four times in each step. Will be.

FIGS. 7A to 7D show the rewriting operation of magnetic recording information on the magnetic card 2 by a magnetic card reader / writer equipped with a conventional independent magnetic head according to another conventional process. It is. The independent magnetic head used here refers to a read-only head 5 and a write-only head 6 that are separated from each other.

In this rewriting operation, first, FIG.
As shown in (a), as the reading step, the transport path 1
0, magnetic recording information previously recorded by the read-only head 5 is read from the magnetic recording portion of the magnetic card 2 conveyed in one direction, and then, as shown in FIG. New magnetic recording information is written by the write-only head 6 to the magnetic recording section of the magnetic card 2 that has been conveyed in one direction in the same manner.

Further, as shown in FIG. 7 (c), as a card transporting step, the magnetic card 2 is transported in a direction opposite to one direction in the transport path 10, and finally as shown in FIG. 7 (d). As a read check discharge step, newly read magnetic recording information is read by the read-only head 5 from the magnetic recording section of the magnetic card 2 continuously conveyed in the conveyance path 10 in the opposite direction, and the content is checked. 2 is conveyed and discharged.

That is, in the case of the rewriting operation by the magnetic card reader / writer, the magnetic card 2 slides on the read-only head 5 once, that is, a total of two times in the read step and the read check discharge step. Also, in the writing step and the card transporting step, the magnetic card 2 is moved once on the write-only head 6, that is,
Slide twice in total.

[0013]

In the case of the above-described rewriting operation by the magnetic card reader / writer having the various magnetic heads, the magnetic card is magnetically moved at an extra timing when no magnetic recording information (electric signal) is exchanged. Since the magnetic head slides on the head, there is a problem that the magnetic head is easily worn and the life of the magnetic head is shortened.

For example, in the rewriting operation by the magnetic card reader / writer equipped with the combination type magnetic head shown in FIGS. 6A to 6D, an extra one time in the card discharging step shown in FIG. 6D. A magnetic card slides on the magnetic head. Therefore, if there is no sliding for one time, the life of the combination type magnetic head can be extended 1.25 times.

In the rewriting operation by the reader / writer for the magnetic card equipped with the independent magnetic head shown in FIGS. 7A to 7D, an extra time is required in the card transporting step shown in FIG. 7C. A magnetic card slides over the write-only head. Therefore, if there is no sliding for one time, the life of the write-only head can be doubled.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its technical object a long-life magnetic head having a structure in which a magnetic recording medium is not excessively slid, and a magnetic recording medium using the same. To provide a reader / writer for use.

[0017]

According to the present invention, in a magnetic head having a gap in which a magnetic recording medium slides, the gap is formed when the magnetic recording information is not exchanged with the magnetic recording medium. A magnetic head provided with head moving means for moving the magnetic head main body so as to be separated from the recording medium is obtained.

According to the present invention, in the above magnetic head, the head moving means is provided when the magnetic recording information is not exchanged with the rotating shaft penetrated by the magnetic head main body and the holder fixed to the magnetic head main body. Magnetic field generating means for generating a predetermined magnetic field, and moving in a uniaxial direction according to the predetermined magnetic field, and engaging with the holder to form a variable acute angle between the holder and the uniaxial direction. And a magnetic head including an engaging body inclined to a predetermined angle.

Further, according to the present invention, a reader / writer for a magnetic recording medium using any one of the above magnetic heads can be obtained.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the magnetic head of the present invention and a reader / writer for a magnetic recording medium using the same.
The writer will be described in detail with reference to the drawings.

FIG. 1 shows a main configuration of a magnetic card reader / writer including a magnetic head according to an embodiment of the present invention in one use state. FIG. 2 shows another configuration of the magnetic card reader / writer. 2 shows a main part configuration in a use state of FIG. Here, the one use state indicates a state in which the magnetic head 1 is in contact with the magnetic card 2, and the other use state indicates a state in which the magnetic recording information is not exchanged.

As is clear from the comparison between FIG. 1 and FIG. 2, in the case of this magnetic head 1, the magnetic head 1 having the gap portion 3 in the frame 11 is fixed similarly to the conventional one shown in FIG. The magnetic card 2 is transported in the transport path 10. However, as another configuration, the gap 3 is separated from the magnetic card 2 when magnetic recording information is not exchanged with the magnetic card 2. The head moving means for moving the main body of the magnetic head 1 as described above is provided in the magnetic head 1.

The head moving means includes a rotating shaft 8 penetrating substantially in the center of the main body of the magnetic head 1, a holding plate 12 fixed to the side surface of the main body of the magnetic head 1, and a predetermined position when magnetic recording information is not exchanged. A solenoid coil 7 as a magnetic field generating means for generating a magnetic field of the type described above moves in a uniaxial direction in the solenoid coil 7 in accordance with a predetermined magnetic field, and engages with the holding plate 12 to move the holding plate 12 with the uniaxial direction. The engagement shaft 1 that rotates the magnetic head 1 body about the rotation shaft 8 by inclining so as to form a variable acute angle between them.
It consists of three.

Here, the holding plate 12 and the engagement shaft 13 fix the small screw to the engagement shaft 13 through the guide groove 12a provided in the holding plate 12, and the small screw is movable along the guide groove 12a. It is configured as follows. Thus, when the main body of the magnetic head 1 rotates about the rotation shaft 8, the small screw moves along the guide groove 12a.

That is, in the magnetic head 1 provided with the head moving means, when the magnetic recording information is not exchanged, the gap portion 3 is swung in an arc shape and the gap portion 3 is separated from the magnetic card 2. 2 is no longer slid. As a result, the life of the magnetic head 1 is extended.

FIGS. 3A to 3D show the rewriting operation of magnetic recording information on the magnetic card 2 by a magnetic card reader / writer equipped with a combination type magnetic head according to another embodiment of the present invention for each process. It is shown. However, the combination type magnetic head 4 used here is also formed by integrating the writing unit 4a and the reading unit 4b as shown in FIGS. 6 (a) to 6 (d). 4 is provided with the head moving means described above.

In the rewriting operation, first, FIG.
As shown in FIG. 3, as a reading step, the magnetic recording information previously recorded by the reading unit 4b is read from the magnetic recording unit of the magnetic card 2 conveyed in one direction in the conveyance path 10, and then, as shown in FIG. As shown in the drawing, as the writing step, new magnetic recording information is written by the writing section 4a to the magnetic recording section of the magnetic card 2 transported in the transport path 10 in the direction opposite to one direction.

Subsequently, as shown in FIG. 3 (c), as a read check step, the magnetic recording section of the magnetic card 2 transported in the transport path 10 again in one direction from the magnetic recording section to the read section 4
3b, the newly recorded magnetic recording information is read, and finally, as shown in FIG. 3D, as a card ejection step, the gap 3 of the combination type magnetic head 4 is separated from the magnetic card 2 by the head moving means. Then, in the transport path 10, the magnetic card 2 is moved in the direction opposite to one direction.
Is conveyed again and discharged.

In the case of the rewriting operation by the magnetic card reader / writer, when one magnetic card 2 is targeted, the magnetic card 2 slides on the combination type magnetic head 4 a total of three times in each step. Therefore, FIG.
Compared with the conventional case described in (d), since one slide in the card ejection process is reduced, the life of the combination type magnetic head 4 is extended by 1.25 times.

FIGS. 4A to 4D show the rewriting operation of magnetic recording information on the magnetic card 2 by the magnetic card reader / writer equipped with the independent magnetic head according to another embodiment of the present invention for each process. It is shown. However, the independent magnetic head used here also has the configuration shown in FIGS.
The read-only head 5 and the write-only head 6 are separated from each other in the same manner as described above, and the write-only head 6 of these heads is provided with the above-described head moving means.

In this rewriting operation, first, FIG.
As shown in (a), as the reading step, the transport path 1
0, the magnetic recording information previously recorded by the read-only head 5 is read from the magnetic recording section of the magnetic card 2 conveyed in one direction, and then, as shown in FIG. New magnetic recording information is written by the write-only head 6 to the magnetic recording section of the magnetic card 2 that has been conveyed in one direction in the same manner.

Further, as shown in FIG. 4C, as a card transporting step, after the gap 3 of the write-only head 6 is separated from the magnetic card 2 by the head moving means, it is moved in one direction in the transport path 10. Is the magnetic card 2 in the opposite direction
Finally, as shown in FIG. 4 (d), as a read check and discharge step, a new recording is performed by the read-only head 5 from the magnetic recording section of the magnetic card 2 which has been conveyed in the opposite direction in the conveyance path 10. After reading the magnetic recording information and checking its contents, the magnetic card 2 is transported and ejected.

In the case of the rewriting operation by the magnetic card reader / writer, the magnetic card 2 slides on the read-only head 5 once, that is, twice in total in the read step and the read check discharge step. In the writing step, the magnetic card 2 slides once on the write-only head 6, but in the card transport step, the magnetic card 2 does not slide on the write-only head 6.
Therefore, as compared with the conventional case described with reference to FIGS. 7A to 7D, the sliding of one time in the card transport process is reduced, so that the life of the write-only head 6 is doubled.

[0034]

As described above, according to the present invention, the magnetic head is provided with the head moving means for separating the gap from the magnetic recording medium when the magnetic recording information is not exchanged with the magnetic recording medium. Therefore, a long-life magnetic head having a structure in which the magnetic recording medium is not excessively slid can be obtained. As a result, also in the magnetic recording medium reader / writer equipped with the magnetic head, the wear of the magnetic head is suppressed to the minimum necessary, the labor for replacing the head is reduced, and the reliability in use is improved. In particular, regarding the rewriting operation of the magnetic recording information, the life of the combination type magnetic head can be extended 1.25 times, and that of the stand-alone magnetic head can be extended twice as long. Become.

[Brief description of the drawings]

FIG. 1 is a simplified diagram showing a main configuration of a magnetic card reader / writer including a magnetic head according to an embodiment of the present invention in one use state (state in which magnetic recording information is exchanged).

FIG. 2 is a simplified diagram showing a main part configuration of the magnetic card reader / writer shown in FIG. 1 in another use state (a state in which magnetic recording information is not exchanged).

FIG. 3 shows the rewriting operation of magnetically recorded information on a magnetic card by a magnetic card reader / writer equipped with a combination type magnetic head according to another embodiment of the present invention for each process, and FIG. Showing the process, (b)
Shows a writing step, (c) shows a reading check step, and (d) shows a card discharging step.

4A and 4B show the rewriting operation of magnetic recording information on a magnetic card by a magnetic card reader / writer equipped with a stand-alone magnetic head according to another embodiment of the present invention for each process, and FIG. 4B shows a process, FIG. 4B shows a writing process, FIG. 5C shows a card transport process, and FIG. 5D shows a read check discharge process.

FIG. 5 is a simplified diagram showing a main configuration of a magnetic card reader / writer including a magnetic head according to a conventional example.

6A and 6B show a rewriting operation of magnetically recorded information on a magnetic card by a magnetic card reader / writer equipped with a combination type magnetic head according to another conventional example, in which steps (a) show a reading step. , (B) shows a write step, (c) shows a read check step,
(D) shows a card discharging step.

FIG. 7 shows a step-by-step operation of rewriting magnetic recording information on a magnetic card by a magnetic card reader / writer equipped with a conventional independent magnetic head according to another conventional example.
(A) shows a read step, (b) shows a write step, (c) shows a card transport step, and (d) shows a read check discharge step.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnetic head 2 Magnetic card 3 Gap part 4 Combination type magnetic head 4a Write part 4b Read part 5 Read-only head 6 Write-only head 7 Solenoid coil 8 Rotary shaft 9 Roller 10 Transport path 11 Frame 12 Holding plate 12a Guide groove 13 Engage axis

Claims (3)

[Claims] 1. A magnetic head having a gap in which a magnetic recording medium slides, such that the gap is separated from the magnetic recording medium when magnetic recording information is not exchanged with the magnetic recording medium. A magnetic head, comprising: a head moving means for moving the magnetic head main body. 2. The magnetic head according to claim 1, wherein said head moving means includes: a rotating shaft penetrated by said magnetic head main body; a holder fixed to said magnetic head main body;
A magnetic field generating means for generating a predetermined magnetic field when not exchanging the magnetic recording information, and moving in a uniaxial direction in accordance with the predetermined magnetic field, engaging with the holding body and moving the holding body in the uniaxial direction; And an engaging body that inclines so as to form a variable acute angle between the magnetic heads. 3. A reader / writer for a magnetic recording medium, wherein the magnetic head according to claim 1 is used.