JPH0253208A - Magnetic disk recording and reproducing device - Google Patents

Abstract

PURPOSE:To make a magnetic disk recording and reproducing device capable of using a magnetic head driving device for nTPI and a magnetic head driving device for 2nTPI in common by providing two read/write heads to its magnetic head. CONSTITUTION:When a read/write core 9 in the possession of the magnetic head 2 is situated on a track T, while a read/write core (B) 9a is situated on a track T+1, and at the time of recording and reproducing information on the track T, the recording and reproducing are performed by the head/write core 9 situated on the track T, and at the time of performing the recording and reproducing on the track T+1, the magnetic head 2 is not moved, and the read/write core 9 is remained unchanged in its position on the track T, and under this condition, information is recorded and reproduced on the track T+1 by the read/write core (B) 9a. When the recording and reproducing are performed on a track T+2, the magnetic head 2 is moved, and the read/write core 9 is moved onto the track T+2, so as to carry out the recording and reproducing. By this method, the magnetic head driving device mounted on a recording and reproducing device for a low track density magnetic disk can be mounted on a recording and reproducing device for a large track density magnetic disk.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a magnetic disk recording/reproducing apparatus having a magnetic head having a lead rod core [7] and equipped with a magnetic head driving device.

[Conventional technology]

FIG. 4 is a front view of a magnetic disk recording/reproducing apparatus having a magnetic head having a conventional read/write core and a magnetic head driving device.

In the figure, (1) is a magnetic head transport device, and (2) is a magnetic head mounted on the magnetic head transport device (1).
3) is a magnetic head drive device that moves the position of the magnetic head (2) mounted on the magnetic head transport device (1);
4) is a rotating member that is rotated by the power generated by the magnetic head drive device (3) and is additionally attached to the magnetic head drive device, and (5) is a rotating member that rotates the rotation of the rotating member (4) to convey the magnetic head. A power transmission member that transmits power to the device (1) and drives the magnetic head transport device (1), (6) is a fixed member A that is fixed to the power transmission member (5) and the rotating member (4), and f force is the power A fixing member B is fixed to the transmission member (5) and the magnetic head transport device (1) (81 is a recording medium. FIG.

FIG. 2 is a cross-sectional view of the magnetic head (21) and the recording medium (8) when the magnetic head (2) is positioned on a certain track T.

In the figure, (9) is a read/write core positioned on the track width when the magnetic head (2) is positioned on the track T. FIG. 6 shows the magnetic head (2) having a read/write core (9) moved from track T to track T+1 and positioned.
2) and a cross-sectional view of the recording medium (8).

Next, the operation will be explained. A read/write core (9) possessed by a magnetic head (2) mounted on a magnetic head transport device (1) positioned on a track T,
When moving to the adjacent track T+1 and positioning it, the power transmission fixed by the fixing member B (7) to the magnetic head transport device (1) equipped with the magnetic head (2) having the read/write core (9). The power transmission member (5) is transmitted via the member (5) to the magnetic head drive device by the power generated by the magnetic head drive device (3) to which the rotating member (4) fixed by the fixed member A (6) is attached. (3
) is the rotating member (4) attached to the magnetic head (2).
is moved from track T to track T+1i and rotated by the angle necessary to be positioned.

The magnetic head (2) mounted on the magnetic head transport device (1) is moved from track T to track T+1 and positioned.

[Problem to be solved by the invention]

Since the conventional magnetic disk recording/reproducing device is configured as described above, in the magnetic head drive device mounted on the above-mentioned magnetic disk recording device.

A magnetic head drive device installed in a magnetic disk recording/reproducing device with a low track density could not be installed in a magnetic disk recording/reproducing device with a large track density.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to use a magnetic head drive device with a minimum rotation angle of α0, which is mounted on a magnetic disk recording/reproducing device with a track density of nTPI, with a track density of nTPI.

The object of the present invention is to obtain a magnetic disk recording and reproducing device that can be installed in a 2nTPI magnetic disk recording and reproducing device.

[Means to solve the problem]

A magnetic disk recording/reproducing apparatus according to the present invention has a magnetic head having two read/write heads.

[Effect]

The magnetic head in the present invention has read/write/rad f.
, it is possible to use a magnetic head drive device that can move the same minimum distance as the minimum movement distance of the magnetic head in an nTPI magnetic disk recording and reproducing device in a 2nTPI magnetic disk recording and reproducing device.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. Second
FIG. 1 is a sectional view showing a cross section of a magnetic head included in a magnetic disk recording/reproducing apparatus according to an embodiment of the present invention. In the figure, (9a) is the read/write core A located at track T+1 when the read/write core (9) is located at track T in the 2n TP I magnetic disk recording/reproducing device. FIG. 3 shows that the read/write core (9) is located at track T+2. Read/write core A
(9a) is a sectional view showing the cross section of the magnetic head (2) and the recording medium (8) when it is located on track T+3.

Next, the operation will be explained.

When the read/write core (9) of the magnetic head (2) is located on the track of the trunk T and the read/write core B (9a) is located on the track of the track T+1, information is stored on the track T. When recording and reproducing, the read/write core (9) located on track T performs recording and reproducing, and when recording and reproducing on track T-1-1, the magnetic head (2) does not move.

While the read/write core (9) remains on the track T, the read/write core B (9a) records and reproduces information on the track T+1. When recording and reproducing on track T+2, move the magnetic head (2) and read/write core (9).
) is moved onto track T+2 and recorded/reproduced.

〔Effect of the invention〕

As mentioned above, according to the present invention, the magnetic head drive device used in the nTPI magnetic disk recording/reproducing device can be used in the 2nTPI magnetic disk recording/reproducing device, and the magnetic head drive device for the nTPI device and 2
The magnetic head drive device for nTPI can be shared.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a magnetic disk recording/reproducing apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view of the magnetic head in which the magnetic head is located on tracks T and T+1, and FIG. Figure 1 is a sectional view of a magnetic head in which the magnetic head according to the present invention is located on tracks T+2 and T+3, and Figure 4 is a sectional view of a conventional magnetic disk recording/reproducing device fjj.
A front view showing t. FIG. 5 is a sectional view of a conventional magnetic head located on track T, and FIG. 6 is a sectional view of a conventional magnetic head located on track T+1. In the figure, (1) is a magnetic head transport device, (2+ is a magnetic head, (3) is a magnetic head drive device, (41 is a rotating member, (5) is a power transmission member, (6) is a fixed member A,
The force is the fixing member B, (81 is the recording medium, (9) is the read/write core. (9a) is the read/write core A.

Claims (1)

[Claims] In a magnetic disk recording/reproducing device equipped with a magnetic head having a read/write core, nTPI
1. A magnetic disk recording and reproducing device characterized in that a magnetic head drive device for a magnetic disk recording and reproducing device can be mounted on a 2nTPI magnetic disk recording and reproducing device.