JPS6262484A - Memory device - Google Patents

Abstract

PURPOSE:To absorb an oscillation generated when activating and stopping a movable mechanism and to prevent the transmission of the oscillation to a disk by disposing a buffer member at least one between a magnet and a yoke or between the yoke and a support base. CONSTITUTION:An oscillating member 14 is disposed between a support base 1 and a yoke 9 and a buffer member is made of, for instance rubber having a prescribed hardness. In such a memory device, the oscillation of a drive mechanism 12 according to a reaction when activating and stopping a movable mechanism 11 is absorbed by the buffer member 14 disposed between the support base 1 and the drive mechanism 12. Thereby, the oscillation generated in the drive mechanism 12 is prevented from being transmitted to a disk 3. A buffer member 16 is disposed between a yoke 15 and a magnet 10, thereby, the oscillation generated when activating and stopping the movable mechanism 11 is absorbed by a drive mechanism 17 consisting of the yoke 15 and the magnet 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Applications] The present invention relates to a storage device used in electronic computers, computer peripheral terminals, and the like.

[Conventional technology]

FIGS. 7 and 8 show conventional magnetic disk devices used as storage devices. In the figure (11 is a support stand, (
2) is a rotating device such as a spindle motor attached to the support base (1), (3) is a disk attached to the spindle motor (2), and (4) is a rotating device installed at a predetermined distance from the spindle motor (2). The shaft attached to the support stand (1), (5
) is an arm swingably supported by a shaft (4) at a predetermined distance from the support stand (11), and (6) is an arm with one end attached to the arm (5).
and a pressure spring fixed at a predetermined angle, and a head (
7) is installed. (8) is a moving coil wound around one end of the arm (5), and (9) is a yoke arranged to face one end of the arm (5), which is attached to the support base (1). 0 [ is a pair of magnets fixed to the yoke (9), and is arranged facing the arm (5).

Note that the arm (5), pressure spring (6), head (7), and moving coil (8) form a movable mechanism (It), and the yoke (9) and the magnet coil form a drive mechanism (12). has been done. Furthermore, an actuator (+3) is formed by the movable mechanism (11) and the drive mechanism (actuator).

Next, the operation will be explained. When the spindle motor (2) is driven and the disc (3) rotates, the disc (
3) by the viscous air flow generated on the surface.

A buoyant force is generated on the do (7). This buoyancy balances the pressure force of the pressure spring (6) that pressurizes the head (7), and the disk (
The disk (3) is rotated while maintaining a small gap between the disk (3) and the head (7).

In this state, when a predetermined command is sent from the electronic computer to the magnetic disk device, a predetermined current is supplied to the movable coil (8) by a control circuit (not shown). Thereby, the drive mechanism (r4) moves the movable coil (8) in a predetermined direction according to Fleming's left hand rule.

In this way, in response to the current supplied to the movable mechanism 01), a driving force is generated to swing the drive mechanism (rumored to be a movable mechanism) in a predetermined direction at a predetermined angle around the axis (4), The head (7) is positioned with respect to the disk (3).

[Problem that the invention seeks to solve]

Since conventional storage devices are configured as described above, during the positioning operation of the head that drives the movable mechanism, the reaction force transmitted from the movable coil to the drive mechanism causes vibrations to the spindle motor and disk via the support base. This causes an error in the positioning of the head, which causes recording and
There was a problem in that errors were likely to occur during playback.

The present invention was made to solve the above-mentioned problems, and it is an object of the present invention to provide a storage device that can prevent head positioning errors from occurring.

[Means for solving problems]

In the storage device according to the present invention, a buffer member capable of absorbing vibrations is disposed between the magnet and the yoke or between the yoke and the support base.

[For production]

In the storage device according to the present invention, the vibration generated by the reaction when the movable mechanism starts and stops is absorbed by the buffer member.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (1) to (13) are the same as the conventional one. Reference numeral 04 denotes a buffer member disposed between the support base (1) and the yoke (9), and is made of, for example, rubber having a predetermined hardness.

In such a storage device, the vibration of the drive machine #ll1 (rumored to be
1) and the drive mechanism (12), it is absorbed by the buffer member θ. Therefore, vibrations generated in the drive device (b) are prevented from being transmitted to the disk (3).

Figure 2 shows another embodiment, in which a driving mechanism (+
7) to absorb vibrations when the movable mechanism (11) is started and stopped.

Figures 3 to 6 each show still other embodiments, and the one in Figure 3 is a movable mechanism (one
1) is supported by a support stand (1), and is expected to operate in the same way as the one shown in Figure 2. In addition, the one in Fig. 4 has a moving mechanism (+9
) supports the movable mechanism 01), and the yoke 05) and magnet (10
The damping member placed between the two is designed to absorb the amount of water. Furthermore, in the one in FIG. 5, the movable mechanism (11) having the moving mechanism (Fl) is made to be able to move on the support base (1) via the yoke (to), and the same operation as in the above embodiment is expected. ing. In addition, in the case shown in Fig. 6, vibrations of the yoke (2) are transmitted to the support stand (1) by providing a buffer member (2) in the gap (B) supported by the support stand (11). is prevented.

In the above embodiment, a buffer member for absorbing vibrations was placed either between the magnet and the yoke or between the yoke and the support base, but if the buffer members were placed on both sides, vibration absorption would be further promoted. be done.

〔Effect of the invention〕

As described above, according to the present invention, since the buffer member is arranged at least between the magnet and the yoke or between the yoke and the support base, the vibrations generated when starting and stopping the movable mechanism are reduced. Absorbed. This prevents vibrations from being transmitted to the disk.

[Brief explanation of the drawing]

FIG. 1 is a front view of a storage device according to an embodiment of the present invention;
2 to 6 are front views showing other embodiments of the present invention, FIG. 7 is a plan view of a conventional storage device, and FIG. 8 is a front view of the conventional storage device. In the figure, (1) is a support base, (2) is a rotating device, and (3) is a rotating device.
) is the disk, (7) is the head, (8) is the moving coil,
(9) is the yoke, Ql is the magnet, (+2) is the drive mechanism, (
→ is a buffer member. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] (1) The disk is rotated by a rotating device placed on a support base, and the head, which is positioned facing the recording surface of the disk, is supported by an arm, and is magnetically coupled to a movable coil provided on the arm. A drive mechanism for driving the head to a predetermined position is arranged on the support base,
A storage device characterized in that the drive mechanism is composed of a magnet and a yoke, and a buffer member capable of absorbing vibrations is provided between at least one of the magnet and the yoke or between the yoke and the support base. Device.