JPS6228913A - Magnetic head for floppy disk device - Google Patents

Abstract

PURPOSE:To increase track density double and to secure the same reading/ writing operation for variation in the track density by installing two magnetic head cores which differ in track width in a magnetic head slider. CONSTITUTION:The magnetic head cores 2 and 3 are installed on the magnetic head slider 1 whose floppy disk contacting surface 4 contacts a floppy disk when writing or reading is performed. The cores 2 and 3 correspond to track width 5a when the track density is 96 TPI and track width 5b when 48 TPI. Thus, the cores 2 and 3 which differ in track width are provided in the slider 1 to secure the same reading/writing operation for a floppy disk having original track density when the track width is doubled and the inside of each track is halved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head for a floppy disk device.

[Conventional technology]

Conventionally, the magnetic head of this type of floppy disk device has a structure in which one magnetic head core is provided within the same magnetic head slider.

[Problem that the invention seeks to solve]

The magnetic head of the conventional floppy disk drive described above has a structure in which the same magnetic head writer has only one magnetic head core, so when the track density of the floppy disk drive is doubled, the floppy disk's When the track width of write data is halved, there is a drawback that compatibility is not perfect when reading and writing data on a floppy disk with a conventional track density.

The present invention provides a device that can guarantee the same read/write performance even when the track density changes.

[Means for solving problems]

The magnetic head of the floppy disk device of the present invention is characterized in that it has two magnetic head cores with different track widths in one magnetic head slider.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings.

・FIG. 1 is a schematic diagram of a magnetic head according to an embodiment of the present invention. ・In FIG. 1, the magnetic head slider 1 comes into contact with the floppy disk contact surface 4 when writing/reading from/to the floppy disk. The magnetic helad core 2 has a track rl]5a when the track density is 96 TPI.
It is a head core that corresponds to. magnetic helad core 3
is a blank helad core corresponding to the track width 5b in the case of 48 TPI.

FIG. 2 shows the correspondence of the magnetic helad core to each track density. 4S for 96TPI magnetic herad core 2
The magnetic head core 3 for TPI has a track density of 96TPI.
[Effects of the Invention] As explained above, the present invention improves the track density by having two magnetic cores with different track widths in the slider of the magnetic head of a floppy disk device. 2
Even when the track density is doubled and the track density is halved, the same reading/writing performance can be guaranteed for the floppy disk with the previous track density.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a schematic diagram showing a magnetic head according to an embodiment of the present invention;
FIG. 2 is a diagram showing the correspondence of the magnetic head core to each track density based on FIG. 1. 1... Magnetic head slider 12... Magnetic head core for 96 TPI, : 3... Magnetic head core for 4STPT, 4... Floppy 0 disk contact surface, 5a, 5b
...Truck lJ0 patent applicant NEC Corporation 77, agent patent attorney Naka Kanno 1′′□″
,,7) Ward 1, Figure 2

Claims (1)

[Claims] (1) In the magnetic head of a floppy disk device,
Two different track widths in one magnetic head slider
A magnetic head for a floppy disk device, characterized in that a magnetic head core is installed.