JP2000268310A - Magnetic head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the precision of holding position of a magnetic head core against a slider. SOLUTION: In magnetic head provided with sliders for holding a magnetic head core for a standard capacity and a magnetic head core for a high capacity, one A of side surfaces that form sliders 15, 16 is defined as a reference surface. The magnetic head core 11 for a standard capacity and the magnetic head core 12 for a high capacity are positioned at respective predetermined distances from the reference surface A. The sliders 15, 16 are configured to hold the magnetic head cores 11, 12, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head for a magnetic disk having a magnetic head core for a standard capacity (low density) and a magnetic head core for a high capacity (high density). The present invention relates to a magnetic head for a magnetic disk which is suitable for accurately holding a slider on a slider.

[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 an inner peripheral side and an outer peripheral side of a floppy disk (magnetic disk). I have. In recent years, high-density recording and reproduction have been performed, and floppy disk devices having a recording capacity of 1 MB (megabyte) or 2 MB to 100 MB or more have been developed.

The magnetic head has a standard capacity (low density).
And a high-capacity (high-density) magnetic head core. These magnetic head cores are held by a slider made of a non-magnetic material such as a ceramic material.

[0004]

If the holding positions of the magnetic head cores for the standard capacity (low density) and the magnetic head cores for the high capacity (high density) on the slider vary, the recording / reproducing position on the floppy disk becomes inadequate. The head carriage that forms the dispersion and the floppy disk drive is
If the upper and lower magnetic heads, which are composed of an upper carriage and a lower carriage, do not correspond to the upper and lower carriages, there is also a problem in that recording and reproduction on a floppy disk will be inconvenient.

[0005]

An object of the present invention is to provide a magnetic head for a magnetic disk having a slider for holding magnetic head cores for a standard capacity and a high capacity, wherein one side forming the slider is used as a reference plane. This problem can be solved by positioning the magnetic head core for standard capacity and the magnetic head core for high capacity at a predetermined distance from the reference plane, and holding the respective magnetic head cores on the slider.

According to the above arrangement, the holding positions of the magnetic head core for the standard capacity and the magnetic head core for the high capacity on the slider are made precise. Also, if the positions of the magnetic heads to be attached to the upper and lower carriages are aligned with each other, for example, the position of the magnetic head core for the standard capacity,
On the other hand, there is no need to position the magnetic head core for high capacity.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. 1, 2 and 3. FIG. 1 and 2 are a plan view and a side view, respectively, showing a first embodiment of a magnetic head according to the present invention.

1 and 2, reference numeral 11 denotes a low density (standard capacity) having gaps 11a and 11b of a head core for erasing and a gap 11c of a head core for recording and reproducing.
A high-density magnetic head core 12 having a head core gap 12a for performing recording and reproduction;
13, 13 are coils mounted on the magnetic head core 11,
Reference numeral 14 denotes a coil mounted on the magnetic head core 12, and reference numeral 15 denotes one side of the coil bonded to the magnetic head core 11 by bonding.
a, 15b, 15c, and a slider having a notch-shaped opening 15d for fixing the magnetic head core 12 with the glass 17, a slider 16 having one side adhered to and joined to the magnetic head core 11, and a spacer 20 made of a magnetic material It is.

Next, the assembly of the magnetic head having the above configuration will be described. First, the magnetic head cores 11 and 12 are formed in advance. Next, the gap 11c of the magnetic head core 11 is first set with one side A of the sliders 15 and 16 as a reference plane.
Is positioned at a distance X from the reference plane A, and then is fixedly adhered to the sliders 15 and 16. Next, the gap 12a of the magnetic head core 12 is set to a distance Y from the reference plane A.
And then adhesively fixed in the opening 15d of the slider 15.

As described above, the assembly of the magnetic head cores 11 and 12 to the sliders 15 and 16 is completed. The magnetic head core 11 is assembled such that the gap 11c of the magnetic head core 12 and the gap 12a of the magnetic head core 12 are both at a predetermined distance from the reference surface A forming the side surfaces of the sliders 15, 16. In addition, the gap distance between the gap 11c for recording / reproducing the magnetic head core 11 and the gap 12a of the magnetic head core 12 is accurately maintained.

FIG. 3 is a view showing a state where the magnetic head is mounted on a carriage constituting a floppy disk drive. In the figure, reference numeral 21 denotes a resin upper carriage;
Is a spring for urging the upper carriage 21, and 23 is a gimbal made of a plate-like metal material for fixing the spacer 20 surrounding the coil 13 of the magnetic head.

Reference numeral 25 denotes a lower carriage made of resin, 26 is fixed to the lower carriage 25, and the spacer 2 of the magnetic head is used.
This is a gimbal made of a plate-shaped metal material for fixing 0.

In the above construction, the carriages 21, 25
The mounting position of the magnetic head to be mounted is determined by the relationship with the floppy disk. In this case, if the distance L from the end of the carriage to the gap 11c for recording / reproducing the magnetic head core 11 is measured and attached, the distance from the end of the carriage to the gap 12a of the magnetic head core 12 is determined, and the distance is measured again. No need. If the distance from the carriage end to the gap 12a of the magnetic head core 12 is measured and attached, the distance from the carriage end to the gap 11c for recording and reproduction of the magnetic head core 11 is determined, and it is not necessary to measure the distance again. .

[0014]

As described above, according to the present invention, in a magnetic head for a magnetic disk provided with a slider for holding a magnetic head core for a standard capacity and a magnetic head for a high capacity, one side forming the slider is described. A magnetic head core for the standard capacity at a predetermined distance from the reference plane,
By positioning the magnetic head core for high capacity and the high-capacity magnetic head core and holding the respective magnetic head cores on the slider, the magnetic head core for standard capacity and the holding position of the high-capacity magnetic head core to the slider with high accuracy,
Also, if the upper and lower magnetic heads are attached to the carriage at one position, for example, the position of the standard capacity magnetic head core is aligned, the other, that is, the position of the high capacity magnetic head core, must be performed. There are advantages such as disappearance.

[Brief description of the drawings]

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

FIG. 2 is a side view of FIG.

FIG. 3 is a diagram showing a state in which the magnetic head according to the present invention is mounted on a carriage.

[Explanation of symbols]

 11 Magnetic Head Core for Low Density 12 Magnetic Head Core for High Density 13, 14 Coil 15, 16 Slider 15a 15b, 15c Groove 20 Spacer 21 Upper Carriage 23, 26 Gimbal 25 Lower Carriage

Claims (1)

[Claims] 1. A magnetic head for a magnetic disk, comprising a slider for holding magnetic head cores for standard capacity and high capacity, wherein one side surface on which the slider is formed is used as a reference surface, and a predetermined surface is defined from the reference surface. A magnetic head, wherein the magnetic head core for standard capacity and the magnetic head core for high capacity are positioned at a distance, and the magnetic head cores are held by the slider.