JPH03150759A - Magnetic recording/reproducing device - Google Patents

Abstract

PURPOSE:To stabilize a medium set near a sliding part over a wide range and to effectively prevent the occurrence of spacing between a magnetic head and the medium by providing a stabilizer having a surface part around the magnetic head in order to stabilize the medium. CONSTITUTION:A stabilizer 16 having a surface part 16a opposite to medium 7 is provided around a shielding ring 5 of a magnetic head 1 of a lower magnetic head device 1b. Then the device 1b is combined with an upper magnetic head device 1a, and both devices are fixed together with a fixing screw 15. Thus a magnetic head is obtained. In such a way, a recording or reproducing operation is carried out and therefore the waving vibration of the medium 7 are suppressed via the part 16a of the stabilizer 16. Then the medium 7 set near a sliding part is stabilized over a wide range and the spacing cause between the head 1 and the medium 7 can be effectively suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic recording and reproducing apparatus, and particularly to a magnetic recording and reproducing apparatus that performs warm recording or reproduction of information on a magnetic recording medium.

(Prior Art) Conventionally, a magnetic recording/reproducing device (hereinafter referred to as a device) has been used as an external storage device for a computer, etc., and this type of device has been used to magnetically record or record h-news on a flexible magnetic disk of a magnetic recording medium. There is a flexible disk device (hereinafter referred to as FDD) that performs tn recording.In recent years, FDDs have been rapidly becoming smaller and larger in capacity, and accordingly, there is a demand for higher recording quality. It has been found that it is an advantageous method to narrow the width of the magnetic gap of the magnetic head. However, when the gap width is narrowed, the l!iI between the magnetic recording medium (hereinafter referred to as the medium) and the magnetic head is (hereinafter referred to as spacing) changes significantly in the output of the magnetic head.For this reason, the state of contact between the magnetic head and the medium is important, and it is necessary to stably keep the spacing small. .

With the above in mind, in a conventional FDD, a configuration as shown in FIG. 2 is used as a magnetic head support section.

FIG. 2 is an exploded perspective view of a conventional FDD magnetic head device, in which FIG. 2a shows an upper magnetic head device, FIG. 2 shows a lower magnetic head device, and FIG. 2C shows a magnetic recording medium, 2
Figure d is a perspective view of each of the fixing screws.

In FIG. 2, 58 is a carriage for transporting the magnetic head, and is driven along the radial direction of the medium 7 (in the direction of the arrow in FIG. 2) by a driving means (not shown).

Further, as shown in FIG. 2, a first magnetic head 1 is mounted on the upper surface of the leading end of the carriage 8 through a support plate 3 for recording or reproducing information on the lower surface of the medium 7 (FIG. 2 C). Supported and fixed. or,! ! A shield ring 5 for preventing noise from entering the magnetic head 1 is attached to the magnetic head 1.
It is fixed to surround the area.

Further, as shown in FIG. 2a, an arm 9 is cantilever-supported on the carriage 8 by a leaf spring 12 via a support member 13 so as to be elastically displaceable in the vertical direction. In FIG. 2, it is fixed to the carriage 8 with the fixing screw 15 (FIG. 2 d) while being urged downward.

A medium 7 (FIG. 2C) is attached to the upper surface of the tip of the arm 9.
A second magnetic head 2 for recording or reproducing information is supported at its periphery by an elastic gimbal plate 4 fixed to an arm 9. Further, a shield link 6 is fixed to surround the magnetic head 2 in order to prevent noise from entering the magnetic head 2. The magnetic head 2 is arranged facing the magnetic head 1, and the arm 9
The position in the L direction in FIG. 2a is regulated by a pivot 10 provided at the gimbal plate 4, and the gimbal plate 4 is swingably disposed about the pivot 10 as a fulcrum through the elasticity of the gimbal plate 4.

Next, the operation of this conventional example will be explained using FIG. 2.

In Figure 2 of the drawing, during recording and reproduction, the pressing spring 1
4 presses the arm 9 downward in FIG. The magnetic head l is driven to rotate in the direction of arrow B in FIG.

2 are in sliding contact to perform recording or reproduction.

This a! The magnetic head 1 is connected to the FDD's recording/reproducing circuit (not shown) via a flexible printed circuit board (hereinafter referred to as FPC) 11 (not shown), while the magnetic head 2 is connected to the FDD's recording/reproducing circuit (not shown) via the FPCll. It is connected to a reproduction circuit (not shown) and information is exchanged.

In the configuration of the conventional example as described above, each of the magnetic heads 1.2 is brought into pressure contact with the medium 7 by the pressing force of the pressing spring 14, and the magnetic head 2 is supported swingably so as to follow the medium 7. By doing so, we were able to reduce spacing.

(Problems to be Solved by the Invention) As described above, in the conventional example, when recording or reproducing, negative pressure is generated by the grooves provided in each of the magnetic heads 1. I'm trying to keep them close. However, since the areas around each of the magnetic heads 1 and 2 are completely free, the medium 7 vibrates like a wave, and this movement may be suppressed by pressure or rocking during navigation. In this case, there is a problem in that spacing occurs between each of the magnetic heads 1 and 2 and the medium 7, and as a result, the recording and reproducing characteristics of the device are significantly deteriorated.

There is also a method of increasing the pressing force to suppress the occurrence of spacing as described above, but in that case, the pressing force on the sliding contact portion of each of the magnetic heads 1 and 2 of the medium 7 may become abnormal. There was a problem that the medium 7 could be damaged due to the large size.

This invention was made in order to solve the problems of the conventional example as described above, and a stabilizer having a surface part for the purpose of stabilizing the medium is provided around the magnetic head, and the stabilizer is used to close the area near the sliding part. It stabilizes the medium over a wide range, effectively suppresses the occurrence of spacing between the magnetic head and the medium, improves and stabilizes the output characteristics of the magnetic head, and enables efficient, good, and stable magnetic recording and reproduction. The purpose is to obtain a magnetic recording/reproducing device.

[Means to solve the problem]

For this reason, the present invention includes a magnetic head, a support member that swingably supports the magnetic head, and a magnetic recording medium, and presses the support member toward the supplementary magnetic recording medium. A magnetic recording/reproducing device for magnetically recording or reproducing information by pressing a magnetic head against the magnetic recording medium and sliding it relative to the magnetic recording medium, the magnetic recording/reproducing device having a surface portion around the magnetic head for stabilizing the magnetic recording medium. The object is to be achieved by a magnetic recording/reproducing device equipped with a stabilizer.

[For production]

The magnetic recording/reproducing device of the present invention magnetically records or reproduces information by pressing a support member toward a magnetic recording medium, pressing a magnetic head against the magnetic recording medium and sliding it relative to the magnetic recording medium, and With surrounding stabilizers,
The surface portion of the stabilizer suppresses and stabilizes the waving vibration of the magnetic recording medium.

(Example) Hereinafter, a practical example of the present invention will be described based on the drawings.

Figure 1 shows a magnetic recording IT system which is an embodiment of the present invention.
FIG. 1a is an exploded perspective view of the magnetic head device of the raw device;
1 is a perspective view of an upper magnetic head device, FIG. 1 is a perspective view of a lower magnetic head device, FIG. 1C is a perspective view of a magnetic recording medium (hereinafter referred to as medium), and FIG. 1D is a perspective view of a fixing screw.

In FIG. 1 of the drawings, the same or equivalent components as in the conventional example are represented by the same reference numerals, and redundant explanation will be omitted.

In addition, as shown in FIG. 1 of the drawings, this embodiment
In addition to having the same configuration as the conventional example shown in the figure, a stabilizer 16 having a surface portion 16a facing the medium 7 is disposed around the shield ring 5 of the magnetic head 1.

Next, the operation of this embodiment will be explained using FIG. 1.

In FIG. 1 of the drawing, the lower magnetic head device 1 shown in FIG.
b via the medium 7 to the upper magnetic head device 1 of FIG. 1a.
When a magnetic head device (not shown) is assembled and recorded or reproduced by fixing with the fixing screw 15 shown in FIG. The medium near the sliding portion is stabilized over a wide range, effectively suppressing the occurrence of spacing between the magnetic head and the medium.

In the above embodiment, the stabilizer 16 is provided on the lower magnetic head device only on the bottom surface of the medium 7, but a similar stabilizer (not shown) is provided on the upper magnetic head device on the top surface of the medium 7. If provided, the medium 7 can be further stabilized.

Further, in the embodiment described above, the stabilizer 16 is provided around the shield ring 5, but a surface portion (not shown) for stabilizing the movement of the medium 7 may be provided on the upper part of the shield ring 5.

According to Kowa, a compact design can be achieved without increasing the number of parts.

〔Effect of the invention〕

As explained below, according to the present invention, a stabilizer having a surface portion for stabilizing the medium is disposed around the magnetic head, and the stabilizer prevents the medium near the sliding portion from spreading over a wide area. It is stable, can effectively suppress the occurrence of spacing between the magnetic head and the medium, improves and stabilizes the output characteristics of the magnetic head, and enables efficient, good, and stable magnetic recording and reproduction. There is an effect that can be done. Furthermore, since the pressure can be reduced, damage to the medium can be prevented, resulting in an excellent magnetic recording and reproducing device.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a magnetic head device of a magnetic recording/reproducing apparatus which is an embodiment of the present invention, FIG. 1a is an upper magnetic head device, FIG. 1 is a lower magnetic head device, and FIG. C is a perspective view of a medium, and FIG. 1D is a perspective view of a fixing screw. FIG. 2 is an exploded perspective view of a conventional FDD magnetic head device, in which FIG. 2a is an upper magnetic head device, FIG. 2 is a lower magnetic head device, and FIG. Medium in perspective view of each of the screws. be. 1, 2---Magnetic head 1a=...Upper magnetic head device 1b---Lower magnetic head device 5.6---Shield ring 7---Magnetic recording medium 8 ...Carriage 9...Arm 16---Stabilizer 16a"...Surface

Claims (1)

[Claims] It has a magnetic head, a supporting member that swingably supports the magnetic head, and a magnetic recording medium, and the supporting member is pressed toward the magnetic recording medium to move the magnetic head to the magnetic recording medium. A magnetic recording and reproducing device that magnetically records or reproduces information by pressing against the magnetic field and sliding it relative to the magnetic field.
A magnetic recording/reproducing device comprising: a stabilizer having a surface portion surrounding the magnetic head to stabilize the magnetic recording medium.