JPH10134331A - Magnetic head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a core without being restricted by the size of a back bar by forming the side surface of a spacer into a notched shape, housing respective coils in the notched part of the spacer and fixing respective sliders onto the upper surface of the spacer. SOLUTION: This magnetic head is provided with a recording/reproducing magnetic head core 11, the back bar 12 consisting of magnetic material, the coils 13, 14 loaded on both sides of the magnetic head core 11, sliders 15, 16 arranged on both sides of the magnetic head core 11 and consisting of non- magnetic material such as the magnetic material opposite to a magnetic disk, ceramic, etc., and the spacer 17 formed the notched part 18 that two side surfaces are removed. At this time, since the spacer 17 is formed to a notched shape that side surfaces are opened, the magnetic head core 11 is housed in the spacer 17 without limited by the coils 13, 14 loaded on the magnetic head core 11 or the size of the back bar 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head used in a magnetic disk drive, and more particularly to a structure of a spacer for accommodating a magnetic head core of the magnetic head.

[0002]

2. Description of the Related Art Generally, a magnetic disk device such as a floppy disk device is configured to record and reproduce information by a magnetic head. The magnetic head is held by a head carriage, and the magnetic head is moved to an arbitrary position on the floppy disk by moving the head carriage between the inner peripheral side and the outer peripheral side of the floppy disk.

A conventional magnetic head will be described with reference to FIG. In the figure, 1 is a magnetic head core for recording and reproduction, 2 is a back bar, 3 and 4 are coils mounted on the magnetic head core 1,
Reference numerals 5 and 6 denote sliders disposed on both sides of the magnetic head core 1 and facing the magnetic disk, and reference numeral 7 denotes a spacer having openings 8 and 9 formed therein. Reference numeral 10 denotes a gimbal plate to which the spacer 7 is fixed.

In the state shown in FIG. 4, the coils 5 and 6 are housed in the openings 8 and 9 of the spacer 7, and the sliders 5 and 6 are fixed on the upper surface of the spacer 7, thereby forming a magnetic head.

[0005]

However, in the above configuration, when the sizes of the coils 5, 6 and the back bar 2 change, the size of the opening is changed in accordance with the size of the coils.
When one spacer is used, there is a problem that the sizes of the coils 5, 6 and the back bar 2 are restricted.

[0006]

The object of the present invention is to provide a magnetic head comprising a head core, a slider integrally formed on both sides of the head core, and a spacer for accommodating a coil mounted on the head core. Is formed by forming the side surface into a cutout shape of an opening.

[0007] The above-mentioned object is preferably achieved by inclining the corner of the bottom surface of the cutout shape of the spacer.

According to the above configuration, the magnetic head core can be housed in the spacer regardless of the size of the coil or the back bar mounted on the magnetic head core.

When the corner of the bottom surface of the cutout shape of the spacer is inclined, the material removal of the spacer 18 can be improved, the structure of the molding die can be simplified, and the defective rate such as chipping can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a magnetic head according to the present invention will be described with reference to FIGS. In FIG. 1, 11
Is a magnetic head core made of a magnetic material for recording and reproduction, 12 is a back bar made of a magnetic material, 13 and 14 are coils mounted on the magnetic head core 11, 15 and 16 are arranged on both sides of the magnetic head core 11, and A slider made of a non-magnetic material such as a magnetic material or a ceramic, 17
Is a spacer formed with a cut-out portion 18 in which two sides are opened, that is, the walls indicated by reference numerals A and B in FIG. 4 are removed. The structure of the magnetic head core 11 is simplified. Reference numeral 19 denotes a gimbal plate to which the spacer 17 is fixed.

From the state shown in FIG. 1, the coils 13 and 14 are housed in the cutouts 18 of the spacer 17 and the slider 1
The magnetic heads 5 and 16 are fixed on the upper surface of the spacer 17. FIG. 2 is a plan view of the magnetic head, and FIG. 3 is a side view of the magnetic head.

In FIG. 1, reference numeral 20 denotes an inclined portion formed at the corner of the bottom surface of the cutout portion 18. This inclined portion 19 improves the material removal of the spacer 18, simplifies the structure of the molding die, It is suitable for reducing the defective rate such as chipping.

[0013]

As described above, the head core, and the sliders integrally formed on both sides of the head core,
In a magnetic head comprising a spacer for accommodating a coil mounted on the head core, the spacer has a side surface formed in a cutout shape with an opening, so that the size of the coil mounted on the magnetic head core or the size of the back bar is reduced. Without limitation, the magnetic head core can be housed in the spacer.

When the corner of the bottom of the cutout shape of the spacer is inclined, the material removal of the spacer 18 can be improved, the structure of the molding die can be simplified, and the defective rate such as chipping can be reduced.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view showing an embodiment of a magnetic head according to the present invention.

FIG. 2 is a plan view showing an embodiment of the magnetic head according to the present invention.

FIG. 3 is a side view showing an embodiment of the magnetic head according to the present invention.

FIG. 4 is a partially exploded perspective view showing a magnetic head according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Magnetic head core 12 Back bar 13, 14 Coil 15, 16 Slider 17 Spacer 18 Notch

Claims (2)

[Claims] 1. A magnetic head comprising a head core, a slider integrally formed on both sides of the head core, and a spacer for accommodating a coil mounted on the head core, wherein the spacer has a side surface with a cutout opening. A magnetic head formed in a shape. 2. The magnetic head according to claim 1, wherein a corner of a bottom surface of the cutout shape of the spacer is inclined.