JPS6182372A - Magnetic head device - Google Patents

Abstract

PURPOSE:To improve the operability of temporary fixing with a jig, to make the dislocation of a magnetic head and slider minimal and to facilitate winding work by making the length of either one of two projections divided with a magnetic head core assembly groove shorter in projections for forming the winding groove of the magnetic recording medium outlet of the slider. CONSTITUTION:In a projecting part for forming the winding groove at the magnetic recording medium outlet side of a slider 9, a length (f) of one projection 18 out of two projections 17 and 18 divided with the assembly groove of a magnetic head core 2 is made smaller than a length (e) of the projection 17. Then the slider 9 is inserted into a jig 11 to temporarily fix the slider 9 and head core 2 through a screw 12 and corrosion plate 13, and a glass bar 14 is installed at the side opposite to the recording medium between the slider 9 and core 2 and heated in a furnace to weld the slider 9 and core 2. Since the projection 18 is made shorter, the core 2 will not move at welding and winding is facilitated.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides magnetic recording and reproducing in grooves formed on the outflow end of a magnetic recording medium of a core slider made of a non-magnetic material for giving levitation force to a magnetic head. This invention relates to a composite type magnetic head device in which a magnetic 5-magnetic head core is shrunken.

(Prior Art) As a magnetic recording/reproducing magnetic head that flies approximately parallel to a rotating magnetic recording medium, in recent years a slider 1 made of a non-magnetic material as shown in FIG. 2(a) has been used with a magnetic head as shown in FIG. For example, a composite type magnetic head incorporating a magnetic head core 2 for recording and reproducing is disclosed in U.S. Pat.
173.

The conventional composite type magnetic head is slider 1.
and the magnetic head core 2 are bonded together using inorganic glass as shown in FIG. 2(c). In that case, Fig. 4 (a), (b
In order to regulate the gap depth d of the Pfi head core 2 as shown in ), the magnetic head shown in FIG. 3 is manufactured by machining the surface 4 facing the magnetic recording medium.

In order to finish the gap depth d, which is an important dimension for performing magnetic recording and reproducing during this machining, with high precision and with little variation, it is necessary to 5 and the magnetic head core 2 on the side opposite to the surface facing the magnetic recording medium, the magnetism of the magnetic head core 2, and the step a between the surface 6 on the side opposite to the surface facing the recording medium must be fixed with an accuracy of several microns or less. . As a means to prevent the movement of the magnetic head core 2 when the slider 1 and the magnetic head core 2 are welded together, a spacer 7 with good appearance and high heat resistance is placed in the gap between the slider 1 and the magnetic head core 2 to record magnetic information, as shown in FIG. A method is used in which the slider 1 and the magnetic head core 2 are temporarily fixed by placing them in a gap located on the side opposite to the medium facing surface, or a method is used in which the slider 1 and the magnetic head core 2 are temporarily fixed using an inorganic adhesive 8 as shown in FIG.

(Problems to be Solved by the Invention) However, the former method involves inserting an extremely small spacer 7 into a narrow gap, resulting in very poor workability and is a practical problem; 2, the adhesive 8 flows out to the side 51 of the slider 1 opposite to the surface facing the magnetic recording medium, which causes a problem when processing the surface 4 facing the magnetic recording medium.

(Means for Solving the Problems) In order to solve the above-mentioned drawbacks of the prior art, the present invention provides that among the protrusions forming the depth of the winding grooves provided on the outflow end side of the magnetic recording medium of the slider, Of the two protrusions located on the opposite side to the surface facing the magnetic recording medium, which are separated by an S for incorporating a magnetic head core, one of the protrusions is separated by the length of the other protrusion, or By changing the shape, we have made it possible to use a jig to fix the slider and magnetic head core in a predetermined position when heat-bonding the slider and magnetic head core.

(Function) As detailed above, since the slider and magnetic head core can be temporarily fixed using a pressure bonding jig, it is possible to set them accurately and easily, and glass bonding can be performed by heating them while they are set in the jig. Therefore, the dimension a in FIG. 3 can be easily controlled to 5 μm or less.

(Example of the invention) The present invention will be explained in detail below based on examples.

FIG. 1 is a schematic perspective view of a slider 9 made of a non-magnetic material according to the present invention. As shown in FIG. 1, a winding 3 is provided on the magnetic recording medium outflow end side of the slider 9.

Among the protrusions that form the depth of the groove, the protrusion is located on the opposite side to the surface facing the magnetic recording medium, and is further divided into two protrusions 17.1 by a groove for embedding the magnetic head core.
8, the length f of one of the protrusions 18 is longer than the length e of the remaining protrusion. FIG. 7 shows a state in which the slider 9 and the magnetic head core 2 are crimped and fixed using a substantially U-shaped jig 11. The jig 11 is approximately U-shaped, and one protrusion of the jig 11 is pressed against one side of the magnetic head core 2 incorporated in the slider 9.
Screw 12 from the remaining opposing protrusion of the jig 11
The slider 9 and the magnetic head core 2 are connected via the patch plate 13.
It is temporarily fixed by sandwiching it. A glass rod 14 is installed on the side facing the magnetic recording medium in the gap created between the edge slider 9 and the magnetic head core 2, and the glass is melted in a furnace to weld the slider 9 and the magnetic head core 2 together. The shape of the slider in the above embodiment (shown in FIG. 1) is an example of the slider of the present invention, and is shown in FIGS. 9, 10, 11, and 12.

It goes without saying that the same effect can be obtained even with the shape shown in Fig. 13.

(Effects of the invention) Since the jig 11 that can be easily temporarily fixed to the punch shown in Fig. 7 can be used, it can be seen that the workability is extremely high compared to the conventional temporary fixing method using spacers or gluing. . y1
Connect the slider 9 and the magnetic head core 2 with the screw 12.
Because it is temporarily fixed, fluctuations in the magnetic head core 2 that are likely to occur during welding are extremely small, and the gap depth dimension d in the subsequent process is
management is easy. In addition, as another effect, since the shape of the slider is changed as shown in Fig. 1, the height dimension of the magnetic head core 2 can be directly read from the side surface of the slider 9 as shown in Fig. 7, as shown in Fig. 8. Therefore, even if the magnetic recording medium facing surface 4 is machined in a subsequent process, the gap depth dimension d of the magnetic head core 2 can be actually measured, making it easy to manage and produce with high yield. Furthermore, by shortening one of the protrusions of the slider 9, when winding the wire around the magnetic head core, the workability is improved and the yRf properties are excellent.

In the present invention, by changing the shape of the slider, it is possible to use a jig during welding, so the workability of temporary fixing is extremely high, and the misalignment between the magnetic head core and the slider can be kept extremely small. I can do it. Furthermore, by reducing the dimensions of one of the protrusions on the slider,
It has the excellent feature of making winding work easier.

[Brief explanation of drawings]

Figure 1 is a schematic perspective view of the slider of this embodiment, Figure 2 (a
), (b) is a schematic diagram of the slider and magnetic head core of a conventional magnetic head, Figure 2 (c) is an assembly diagram thereof, Figure 3 is a conceptual diagram of welding of the magnetic head, Figure 4 (a),
(b) is a side view of the magnetic head, FIGS. 5 and 6 are temporary fixing diagrams of the conventional magnetic head, FIG. 7 is a temporary fixing diagram of this embodiment, and FIG. 8 is a side view of the magnetic head of this embodiment. 9, 10, 11, and 12. FIG. 13 is a schematic diagram of the slider of this embodiment. 1: Conventional slider, 2: Magnetic head core. 4: Magnetic medium facing surface. The opposite surface of the 7°5 Nislider to the surface facing the magnetic recording medium. 7: Spacer, 8: Adhesive. 9: slider of this example, 11: jig. 12: Screw, 13: Backing plate. 14 Nigarasu sticks. No. 7 No. 2 Figure omitted 3 @ No. 5, No. 6, No. 4 (a)? Figure 4 (b) Figure 6 Buddha Figure 7 Procedural Amendment IM (J, 16 Q” 2” If 5II 1982
'lQ [i No. 205244';''J-Name of the invention
Person Y who corrects the magnetic head device, +! += ;5og+ 111°r, Kinzoku Co., Ltd./Shinkawa]! ``Norioyo Osamu Hitoi 1su''Toi; Town Choyo I 11 Ward 9 [person III-I'11 No. 2 etc. of the amended set line specification's ``Detailed explanation of the invention'' column amendment contents attached sheet Contents of amendment 1: The statement in the "Detailed Description of the Invention" column of the description is corrected as follows. +1) "Longer than e<j'Yr" on page 5, line 5 of the specification
Correct it to "Shorter than e."that's all

Claims (1)

[Claims] In a magnetic head in which a non-magnetic slider for giving a flying force to a recording/reproducing magnetic head and a recording/reproducing magnetic head core are combined, the depth of a winding groove formed on the magnetic recording medium outflow end side of the slider A protrusion located on the opposite side of the surface facing the magnetic recording medium among the protrusions forming the
Furthermore, the magnetic head is characterized in that one of the two protrusions divided by the groove for incorporating the recording/reproducing magnetic head core is different in length or shape from the remaining protrusion. Device.