JPS62149086A - Magnetic head device for floppy disk unit - Google Patents

Abstract

PURPOSE:To obtain the stable state of contact between a head and a disk at all times and to realize the stable state of read and write by suppressing vibration generated by the resonance phenomenon of a gimbals when a magnetic head contacts with a disk. CONSTITUTION:Each of S1 side and S0 side of upper and lower heads 10 is held to gimbals 11 and gimbals are attached to the body 12 of a carriage and fixed. A damper member 20 made of an elastic member is installed in the space of the carriage of S1 side of the head 10. The upper and lower heads 10 are brought into contact with a magnetic disk 13 rotated by a spindle motor, and read/write operation is performed. Vibration caused when the heads 10 contacts with the disk 13 is transmitted to the gimbals 11, and vibration generated by resonance phenomenon of the gimbals 11 is suppressed by the damper member 20. Thus, the state of contact between the heads 10 and the disk 13 is made stable at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a magnetic head device for a floppy disk drive, and particularly relates to improvements in the structure of a magnetic head support.

[Technical burden of the invention and its problems 1 Conventionally, in a floppy disk device, a magnetic recording medium (
(hereinafter referred to as the disk), the upper and lower magnetic fields.

A read/write operation is performed by the contact between the two heads.

Here, as shown in FIG. 2, the magnetic head 10 is held by a gimbal 11 formed from a thin metal plate. The gimbal 11 is fixed to the carriage main body 12, and is a member that enables the magnetic head 10 to perform a following operation such that it is always in stable contact with the disk.

By the way, in the read/write operation state, as shown in FIG. 3, the upper and lower magnetic heads To (SO side and S1 side) come into contact with the rotating disk 13. In this case, a frictional force acts between the magnetic head 10 and the disk 13, and when the surface of the disk 13 changes, the magnetic head 10 moves according to the drag force with the gimbal 11. If this variation is transmitted to the gimbal 11 and coincides with the inherent imaging of the gimbal 11, a situation will arise in which resonance occurs in the gimbal 11. This resonance of the gimbal 11 causes the magnetic head 10 to vibrate, making the state of contact with the disk 13 unstable. Therefore, there is a problem in that the contact condition of the gap portion of the magnetic head 10 with the disk 13 deteriorates, leading to malfunctions in read/write operations.

[Objective of the Invention] An object of the present invention is to suppress the vibration of the magnetic head that occurs due to the gimbal symbiotic phenomenon when the magnetic head is in contact with the disk, and to maintain a stable contact state between the magnetic head and the disk. An object of the present invention is to provide a magnetic head device for a floppy disk device that can be obtained at all times.

[Summary of the Invention] The present invention provides a magnetic head device for a floppy disk device, which includes a damper means made of an elastic member that suppresses vibrations acting on a gimbal that holds a magnetic head.

This damper means is arranged in the space of the carriage body so as to be in contact with the surface of the gimbal opposite to the surface on which the magnetic head is attached.

With such a configuration, resonance generated in the gimbal can be suppressed, and as a result, vibration generated in the magnetic head can be suppressed.

[Embodiment 1 of the Invention An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a side cross-sectional view showing the configuration of a magnetic head device according to an embodiment. In FIG. 1, upper and lower magnetic heads 10
(SO side and S1 side) are each gimbal 11
It is maintained by Each cymbal 11 is attached and fixed to a carriage body 12. Damper member 20
is provided in the space of the carriage main body 12 on the upper side (Sl side), that is, on the gimbal 11 on the opposite side from the magnetic head 10. The damper member 20 is made of, for example, urethane or a sponge-like elastic member.

Next, the effects of this embodiment will be explained. When a read/write operation of the floppy disk device is started, the disk 13 is rotated by a spindle motor (not shown). As shown in FIG. 1, the upper and lower magnetic heads 10 come into contact with this rotating disk 13, thereby executing a read/write operation.

During such read/write operations, disk 1
3 and the magnetic head 10 due to friction etc.
3 changes from its normal rotational state, the change is transmitted to the gimbal 11 through the magnetic head 10. For this reason,
Although the gimbal 11 will vibrate, since the gimbal 11 is in contact with the damper member 20, the vibration will be suppressed by the damper member 20. That is, since the elasticity of the damper member 20 acts as a force in the opposite direction to the vibration of the gimbal 11, the photographing that occurs in the gimbal 11 is suppressed. Therefore, it is possible to suppress a situation where the fluctuation of the disk 13 transmitted to the gimbal 11 and the unique motion of the gimbal 11 match, causing resonance in the gimbal 11.

It goes without saying that the damper member 20 used in the above embodiment suppresses the vibration of the gimbal 11 and has sufficient elasticity to overcome the original flexible effect of the gimbal 11.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to suppress a state in which the gimbal vibrates and resonates during read/write operations. Therefore, it is possible to prevent the magnetic head from vibrating and making contact with the disk unstable. Thereby, the state of contact of the magnetic head with the disk can be stabilized at all times, and stable read/write operations can be realized.

[Brief explanation of drawings]

FIG. 1 is a side cross-sectional view showing the configuration of a magnetic head device of a floppy disk device according to an embodiment of the present invention, FIG. 2 is a perspective view showing a partial configuration of a conventional magnetic head device, and FIG. 3 is a conventional magnetic head device. FIG. 2 is a side sectional view showing the configuration of the magnetic head device of FIG. 10...Magnetic head, 11...Gimbal, 12...
・Main 11 rigid body, 20... damper member.

Claims (1)

[Scope of Claims] A magnetic head device for a floppy disk drive comprising a gimbal fixed to a carriage body and a magnetic head held by the gimbal, wherein the side of the gimbal opposite to the surface on which the magnetic head is attached. A magnetic head of a floppy disk device, characterized in that the magnetic head is provided with a damper means made of an elastic member, the damper means being arranged in the space of the carriage body so as to be in contact with the surface of the carriage body, and comprising a damper means made of an elastic member for suppressing vibrations acting on the gimbal. Device.