JPH08255328A - Method of manufacturing magnetic head - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a method of manufacturing a magnetic head capable of simplifying a slider mounting process. [Structure] Two cores 4 and 7 and a spacer 9 of the head unit 2
A pair of left and right sliders 1 of the slider portion 10 on both left and right sides of the
1 and 12 are attached by adhesion, coils 5 and 8 are attached to the cores 4 and 7, respectively, and the sliders 11 and 12 are fitted in the holder 18. 11 and 12 are formed by connecting portions 14 and 15 so as to be integrally coupled in a state of being spaced apart from each other and facing each other, and the head portion 2 is inserted between the left and right sliders 11 and 12 of the slider portion 10 for alignment Then, the left and right sliders 11 and 12 are simultaneously pressed, the connecting portions 14 and 15 are automatically cut, and the left and right sliders 11 and 12 are simultaneously adhered to the head portion 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a magnetic head used in a magnetic recording / reproducing apparatus using a magnetic disk as a recording medium.

[0002]

2. Description of the Related Art As is well known, a magnetic recording / reproducing apparatus such as a word processor uses a magnetic disk such as a 3.5-inch floppy disk as a recording medium, and magnetic heads are arranged so as to slide on both front and back surfaces of the magnetic disk. Has been done. The magnetic head in this case has a composite head structure including a recording head and a reproducing head, or a combined recording and reproducing head and an erasing head.

Conventionally, this type of magnetic head has been shown in FIG.
And as shown in FIG. That is, the magnetic head 1
Includes a head portion 2 having a composite head structure of a recording head 3 and a reproducing head 6, and a slider portion 10. In the head part 2, ferromagnetic cores 4 and 7 of the recording head 3 and the reproducing head 6 are formed in a thin plate T shape, and these two cores 4 and 7 sandwich the nonmagnetic spacer 9 in the front-back direction. Are bonded and bonded in a straight line. The coils 5 and 8 are attached to the cores 4 and 7, respectively, so that the core 4 writes information by magnetic action and the core 7 reads the written information.

In the slider section 10, a pair of left and right sliders 11 and 12 made of a non-magnetic material such as ceramic is formed in a semicircular shape having the same width as the entire length of the head section 2, and one slider 12 catches dust on the disk surface. A collecting groove 13 is provided. A pair of sliders 11 and 12 are attached integrally to the left and right sides of the two cores 4 and 7 and the spacer 9 along the entire length thereof, and the sliders 11 and 12 are fitted into a rectangular holder 18 serving as a shield material. The magnetic head 1 is composed of. Further, after the slider is attached, the sliding contact sides of the cores 4, 7, the spacer 9 and the sliders 11, 12 are ground and processed into the same plane.

The mounting state of the magnetic head 1 will be described. As shown in FIG. 4, a gimbal 21 is attached to the tip of the carriage 20. The gimbal 21 is provided with a slot 23 in a main body 22 of a thin metal plate, and is capable of three-dimensionally swinging a central portion 22b back and forth and left and right with respect to an outer peripheral portion 22a. Therefore, the magnetic head 1 is fixed to the central portion 22b of the gimbal 21 by adhering the holder 18 thereto.

With the above construction, when a magnetic disk (not shown) is rotated and the magnetic head 1 is slidably brought into contact with this magnetic disk by the carriage 20, the gimbal 21 functions to make the magnetic head 1 three-dimensional. The magnetic head 1 always follows the bending of the magnetic disk and is held in sliding contact. Information is then written on the surface of the magnetic disk by the recording head 3, and the written information is read and reproduced by the reproducing head 6.

Next, the slider mounting of the magnetic head 1 will be described. The pair of left and right sliders 11 and 12 of the slider portion 10 are formed of two separate members as shown in FIG. When these sliders 11 and 12 are attached to the left and right sides of the two cores 4 and 7 of the head portion 2 and the spacer 9, first, one slider 11 is placed on one side of the head portion 2 in the height and length directions. Adhere while aligning and pressing so that they match. Then the other slider 12
Is also attached to the other side of the head portion 2 by adhering it while aligning and pressing so that the height and the length direction are the same.

[0008]

However, in the above-described conventional magnetic head 1, the pair of left and right sliders 11 and 12 are formed of two members, and these sliders 11 and 12 are
12 are aligned and bonded to the head portion 2 one by one. For this reason, there are problems that the number of parts is increased, two steps of alignment and adhesion are required, and the number of steps is increased, and further the positional displacement of the left and right sliders 11 and 12 is likely to occur. An object of the present invention is to obtain a method of manufacturing a magnetic head that can simplify the slider mounting process in view of the problems of the conventional magnetic head manufacturing as described above.

[0009]

To achieve this object, according to the present invention, a pair of left and right sliders of a slider part are attached to both the left and right sides of a core of a head part and a spacer, and coils are respectively mounted on the cores. Then, in a magnetic head in which the slider is fitted in a holder, the slider parts are formed so as to be integrally coupled in a state where a pair of left and right sliders are spaced apart by a connecting part and face each other. The head part is inserted and aligned between the two, and then the left and right sliders are simultaneously pressed,
It is proposed to cut the connecting portion and simultaneously bond the left and right sliders to the head portion.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a slider portion of a magnetic head according to the present invention. The slider portion 10 is formed as one member by previously connecting a pair of left and right sliders 11 and 12 with front and rear connecting portions 14 and 15. . That is, since the pair of sliders 11 and 12 are attached so as to face each other at the same position on both the left and right sides of the head portion of the magnetic head, the two sliders 11 and 12 have the bonding surfaces 11a and 12a respectively a predetermined distance from the thickness of the head portion. They are spaced apart from each other, and are arranged in parallel to each other in parallel with each other in height and length direction. And the two sliders 11, 12
Two joints 1 between the front and rear sides 11b, 12b
4, 4 and 15 are hung in a U-shape and integrally coupled, and two connecting portions 14 and 15 are configured to always hold the two sliders 11 and 12 at the same position facing each other.

The two connecting portions 14 and 15 form the slider 1
The joint portions 14 and 15 are integrally formed of the same ceramic or resin as those of 1 and 12 or formed of a metal member.
The breaking strength is set low due to the brittleness of the material itself and the U-shaped shape with a thin wall thickness. When the width is U-shaped and the width is extremely narrow, the two joints 1
Both 4 and 15 are outwardly deformed into a chevron shape, and a portion in the middle is brittlely fractured and cut automatically, so that no extra force is applied to the bonded portion. In this case, the connecting portion 14,
A cut or the like may be provided in advance so that cutting can be easily performed in the middle of 15.

Next, the slider mounting process will be described with reference to FIG. First, the adhesive S is applied in advance to both the bonding surfaces 11a and 12a of the left and right sliders 11 and 12, or both surfaces of the two cores 4 and 7 and the spacer 9 of the head portion 2. Then, as shown in (a), the left and right sliders 11 and 1 integrated by the connecting portions 14 and 15 of the slider portion 10.
The head portion 2 is inserted orthogonally between the two, and one slider 12 having a large shape is aligned with the head portion 2 so that the height and the length direction thereof coincide with each other. Then, since the other slider 11 is in the same position as the slider 12 by the two connecting portions 14 and 15, the slider 11 is immediately aligned accurately with the head portion 2 without separately aligning the slider 11 and this state. Held in.

After that, when the left and right sliders 11 and 12 are simultaneously pressed toward the head portion 2, both adhesive surfaces 11a and 12a come into contact with the right and left regular positions of the head portion 2 as shown in (b). At this time, each of the two connecting portions 14 and 15 is deformed so as to have an extremely narrow width due to the slider pressing force and project outward in a mountain shape, and accordingly, is automatically cut at the breaking portion A on the way. . Therefore, no extra force such as peeling is applied to the adhesive portion, whereby the left and right sliders 11 and 12 are properly adhered to the head portion 2 by the adhesive S, respectively. In this way, the left and right two sliders 11, 1
2 are simultaneously attached and attached to both left and right sides of the head portion 2 in a single attaching step. And after mounting the slider,
The broken joints 14 and 15 are cut and polished together with the sliding contact side, so that they are neatly removed.

[0014]

As is apparent from the above description, according to the present invention, since the pair of left and right sliders are formed so as to be integrally coupled with each other with the connecting portions spaced apart from each other, the slider portions are integrally coupled. Will be halved and handling will be easier.
Insert the head part between the left and right sliders of the slider part for alignment, and then press the left and right sliders at the same time,
Since the method is to cut the connecting part and bond the left and right sliders to the head part at the same time, the two sliders can be aligned and bonded at the same time in a single slider mounting process, and the number of man-hours required is significantly increased. The number of sliders is reduced, and the positional deviation between the sliders is eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view of a slider portion subjected to a magnetic head manufacturing method of the present invention.

FIG. 2 is a perspective view showing a mounting state of a slider portion with respect to a head portion.

FIG. 3 is a perspective view of a slider portion subjected to a conventional magnetic head manufacturing method.

FIG. 4 is a perspective view showing a mounted state of a magnetic head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 magnetic head 2 head part 4,7 core 5,8 coil 9 spacer 10 slider part 11,12 slider 14,15 connecting part 18 holder

Claims (1)

[Claims] 1. A magnetic head in which a pair of left and right sliders of a slider portion are bonded and attached to both the left and right sides of a core of a head portion and a spacer, coils are respectively attached to the cores, and the sliders are fitted in a holder. The slider part is molded so as to be integrally coupled in a state where a pair of left and right sliders are spaced apart by a connecting part and face each other, and the head part is inserted between the left and right sliders of the slider part for alignment, Press the left and right sliders at the same time,
A method of manufacturing a magnetic head, wherein the connecting portion is cut and the left and right sliders are simultaneously adhered to the head portion.