JPS601612A - Production of magnetic head - Google Patents

Abstract

PURPOSE:To improve the quality and performance of a magnetic head with reduction of cost by joining the magnetic core assembling materials processed into semi-oval forms with a fixed space to a magnetic head block and cutting this joined material to obtain a magnetic head. CONSTITUTION:The semi-oval forms are previously formed continuously with a fixed space for magnetic cores of write/read head assembling material 12 and erasion head assembling materials 13 respectively. These materials are combined to have the materials 12 and 13 containing ovals with fixed intervals. Then a magnetic head block 14 is produced with the glass junction so that the write/ read head gap is positioned at the center part of a recording medium along with the erasion head gaps positioned at both ends of the recording medium respectively. This block 14 is cut along the broken lines to obtain magnetic heads 15. In such a way of production, the quality and performance of the magnetic head are improved with reduction of cost.

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention - A magnetic head for a floppy disk device that combines a write/read head and an erase head that record/reproduce and erase information by sliding on a recording medium. Relating to a manufacturing method.

(b) Background of the Technology Recently, floppy disk devices have come into widespread use as magnetic recording devices. Generally, the magnetic head is 1
However, a magnetic head for a floppy disk device is characterized in that an erasing head is incorporated at the same time as a writing/reading head into one structure.

Magnetic heads generally require individual adjustments to tilt the head gap so that they always face perpendicularly to the recording medium, and they are made up of numerous components with strict dimensional standards. Since it is assembled, there is a need for manufacturing time, and improvements in these areas are desired.

(C) Prior Art and Problems A conventional method of manufacturing a magnetic head for a Fronbi disk device will be described with reference to the drawings.

Figure 1 shows an example of a method for manufacturing a magnetic head for a floppy disk device having head gaps whose inclinations are individually adjusted. A top view and (C) show an enlarged view of section E in (B), respectively.

In the figure, 1 is an individually tilt-adjusted write/read head core, 2 is a write/read head core,
3 is a write/read head coil; 4 is an individually tilt-adjusted erase head gap; 5 is an erase head core; 6 is a write/read head coil;
7 shows the erase head coil, 7 shows the slider, and a to j show the bonding locations of each element, respectively.

A conventional magnetic head for a floppy disk device has a write/read head gap 1 and an erase head gap 4 whose inclinations are individually adjusted, respectively, which are made in a write/read magnetic core 2 and an erase magnetic core 5, respectively. A write/read head coil 3 and an erase head coil 6 are similarly wound around the write/read head core 2 and the erase head core 5.

Both the write/read head magnetic core 2 and the erase head magnetic core 5 are bonded to each other at 10 locations a to j shown in FIG. 1(C), and are fixed by sliders 7 made of ceramic. .

As described above, the conventional magnetic head for a Freonbi disk device is manufactured by bonding together more than ten elements processed according to strict dimensional standards. In addition, the write/read head and erase head are individually tilted so that the surfaces in contact with the recording medium are always perpendicular, which increases manufacturing costs and makes it difficult to achieve consistent performance and quality. be.

(d) Purpose of the Invention The purpose of the present invention is to provide a novel method for manufacturing a magnetic head that eliminates the above-mentioned drawbacks, and in particular, the head magnetic core of the magnetic head is continuously processed to have a predetermined shape (semi-ellipse). By adopting a manufacturing method in which magnetic core assemblies are made from magnetic core pieces and the magnetic core assemblies are cut and used according to the purpose of use, the number of head elements in the final manufacturing stage of magnetic heads for floppy disk drives can be reduced. Another object of the present invention is to realize a method of manufacturing a magnetic head for a floppy disk device that does not require adjusting the inclination of each individual hemlock.

<e> Structure of the Invention The present invention provides a floppy disk comprising a write/read head and an erase head each having an individually adjusted inclination such that the gap between the magnetic cores for magnetizing the recording medium is perpendicularly opposed to the recording medium. In a magnetic head for a device, the magnetic core pieces in which semi-elliptical shapes are continuously machined at regular intervals are combined to form the magnetic core block body with gaps between the ellipses at regular intervals, and a write/read head facing the central portion of the recording medium is formed. The magnetic core blocks are combined and fixed so that a gap and an erase head gap are arranged at both ends thereof, and the number of head elements in the final manufacturing stage of the magnetic head for the Fronbi disk device is reduced, and the individual headgear, This can be achieved by a method of manufacturing a magnetic head, which is characterized in that it does not require adjustment of the inclination of the magnetic head.

(f) Examples of the invention The present invention will be explained below with reference to the drawings.

FIG. 2 shows an embodiment of the method for manufacturing a magnetic head for a floppy disk device according to the present invention, in which (A) is a configuration diagram of the contact surface in contact with a recording medium, and (B) is a diagram showing the configuration of the contact surface in contact with the recording medium, and (B) is a diagram showing the configuration of the contact surface in contact with the recording medium. A cross-sectional view as seen from each direction is shown.

In the figure, 8 is the write/read head gap, 9
10 is a write/read head core assembly, 10 is an erase head gap, 11 is an erase head core assembly, and k and m are bonding points of each core assembly, respectively.

Write/read head gap 8 and erase head gap 10. Write/read head core assembly9. The erase head magnetic core assembly 11 is processed by the method described later in FIG. 3, and is bonded at two points k and m, and is fixed with a slider 7 made of ceramic.

FIG. 3 shows an embodiment of the manufacturing process of a magnetic head for a floppy disk device according to the present invention, in which (A) shows a write/read head assembly, (B) shows an erase head assembly,
(C) is a magnetic hend block body in which a write/read head assembly and an erase head assembly are combined and fixed; (D)
1 and 2 respectively show the steps of cutting a magnetic head block body into one magnetic head.

In the figure, 12 is a write/read head assembly;
3 is an erase head assembly, 14 is a magnetic block body,
Reference numeral 15 indicates a magnetic head.

The magnetic head 15 is manufactured in steps (A) to (D). As shown in the drawings (A) and (B), the magnetic cores of the write/read head assembly 12 and the erase head assembly 13 have semi-elliptical shapes continuously machined at regular intervals in advance, and these are combined to form a uniform elliptical shape. A write/read head assembly 12 and an erase head assembly 13 are prepared at intervals. 3. Next, the write/read head assembly 12 is moved toward the front side when viewed from the running direction of the recording medium, and the erase head assembly 13 is moved toward the rear side. Then, a magnetic head block body 14 as shown in FIG. 3(C) is prepared by arranging the write/read head gap at the center of the recording medium and the erase head gap at both ends.

This magnetic head block body 14 is cut to form a magnetic head 1.
5.

Both the write/read head gap 9 and the erase head gap 10 are created by glass bonding as shown in (D) at the stage of proceeding to the magnetic hand block body process in (C), but individual tilt adjustment is not performed.

(g) Effects of the Invention As described above, a manufacturing method is adopted in which a magnetic core assembly machined into a semi-elliptical shape at regular intervals is joined and assembled to a magnetic hend block, and then cut to form a magnetic head. This reduces the number of head elements in the final manufacturing stage of magnetic heads for floppy disk drives, eliminates the need to adjust the inclination of individual head gaps, simplifies the manufacturing process, and creates an inexpensive head that ensures a certain level of performance quality. This has the effect of providing a magnetic head.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of a method for manufacturing a magnetic head for a Fronbi disk device having individually adjusted tilt gabs, and FIG. 2 shows an embodiment of a method for manufacturing a magnetic head for a Fronbi disk device according to the present invention. For example, FIG. 3 shows an embodiment of the manufacturing process of a magnetic head for a floppy disk device according to the present invention. In the figure, ■ is an individually tilt-adjusted write/read head gap, 2 is a write/read head core,
3 is a write/read head coil; 4 is an individually tilted erase head gap; 5 is an erase head core; 6 is a write/read head coil;
is an erase head coil, 7 is a slider, 8 is a write/read head gap, 9 is a write/read head magnetic core assembly, 10 is an erase head gap, 11 is an erase head magnetic assembly, 12 is a write/read head assembly, 1
3 is an erase head assembly, 14 is a magnetic hend block body,
Reference numeral 15 indicates a magnetic head.兇 1 Figure (B) % 2 Figure ζ8)

Claims (1)

[Claims] A gear knob of a magnetic core for magnetizing a recording medium is composed of a write/read throat and an erase throat with individually adjusted inclinations so as to face perpendicularly to the recording medium. In a magnetic head for a floppy disk device, the magnetic core pieces, which are continuously machined into semi-elliptical shapes at regular intervals, are combined to form the magnetic core block body with caps between the ellipses at regular intervals, and the write/read head faces the central portion of the recording medium. with the head gap. A method of manufacturing a magnetic head, characterized in that the magnetic core blocks are combined and fixed so that a gap of the erase head is arranged at both ends thereof.