JPS6283526A - Vibration isolating device - Google Patents

Abstract

PURPOSE:To make it possible to absorb the vibration transferred from one end of a base to the other end efficiently by constituting a shock absorption mechanism in the specified position of the base. CONSTITUTION:In a supporting pedestal 1 provided with a shock absorption mechanism 17, the vibration of a driving mechanism 12 resulting from the reaction force of a movable mechanism 11 at the time of start-up and stoppage is concentrated, when transmitted from one end of the supporting pedestal 1 to a spindle motor 2, on a part 1a whose sectional area is reduced by a groove 14. Therefore, the vibration is transmitted to a shock absorbing member 15 making tight contact with the side wall of the groove 14 in the transmitting direction of the vibration and the vibration is absorbed by the shock absorbing member 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibration isolating device that absorbs vibrations transmitted from one end of a base to the other end.

[Conventional technology]

For convenience of explanation, the conventional and previous embodiments of the invention will be described below.

In each case, the case of a storage device used in an electronic computer, a computer peripheral terminal, etc. will be explained.

FIGS. 5 and 6 show conventional magnetic disk devices used as storage devices. In Figure 8, (1) is a support stand,
(2) is a mode f on the shind installed on the support stand (1).
The rotating device fl, +3) such as i is a disk attached to the spindle motor (2), and (4) is the disk attached to the spindle motor (2).
) and a shaft attached to the support base (1) at a predetermined interval, (5) l;! An arm is swingably supported on a shaft (4) at a predetermined distance from the support base (1), and (6) is a pressure spring whose one end is fixed to the arm (5) at a predetermined angle. , a head (7) is attached to the other end. (8) is a moving coil wound around one end of arm (5), (9) is a yoke arranged so as to face one end of arm (5),
It is attached to a support stand (1). QQ is York (9)
A pair of magnets fixed to the arm 15) are placed opposite each other.

In addition, the arm (5), force a pressure plate (6), head (7)
) and the movable coil (8) form a movable mechanism Qυ, and the yoke (9) and the magnet σq form a drive mechanism @. An actuator (to) is formed by the base ζ, the movable mechanism αυ, and the drive mechanism @.

Next, the operation will be explained. When the spindle motor (2) is driven to rotate the disk (3), buoyancy is generated on the head (1) due to the viscous air flow generated on the surface of the disk (3). This buoyancy balances the pressure force of the pressure spring (6) that pressurizes the head (7), and the disk (3) and head (7)
) The disk (3) is rotated while maintaining a small gap between the disk (3) and the disk (3).

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). This≦
Therefore, the drive mechanism (6) moves the movable coil (8) in a predetermined direction according to Fleming's left hand rule.

In response to the current base supplied to the movable mechanism αυ, the drive mechanism generates a driving force to swing the movable mechanism αη again in a predetermined direction about the axis (4),
The head (7) is positioned relative to the disk (3).

[Problem that the invention attempts to solve]

Since the conventional storage device is configured as described above, during the positioning operation of the head that drives the movable mechanism, there is a reaction force transmitted from the movable coil to the drive.

Since vibrations are transmitted to the spindle motor and the disk via the support base, errors occur in the positioning of the head, which poses a problem in that errors are likely to occur in recording and reproduction.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a vibration isolating device that can absorb vibrations transmitted from one end of a support base to the other end.

[Means for solving problems]

The vibration isolator according to the present invention is provided with a damping mechanism capable of absorbing vibrations transmitted from one end to the other end of a support base at a predetermined position.

[For production]

In the vibration isolating device of the present invention, the vibration generated by the reaction when the movable mechanism starts and stops is absorbed by the damping mechanism.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
S in the figure, [1) to a3 are the same as the conventional one.

α4 is a groove provided at a predetermined position I on the support base (1),
The support base (1) is configured to have a predetermined width and a predetermined depth with a predetermined thickness remaining. αG is a buffer member fitted into the groove α, and is made of, for example, rubber having a predetermined hardness. Note that the width of the buffer member (to) is configured to be a predetermined value wider than the width of the collapse α4, and is fitted onto the waterfall α4 in a compressed state in the 1@ direction. .alpha. is a holding plate attached to the support base (1) so that the buffer member .alpha. is pressed against the bottom of the groove .alpha. A buffer mechanism ση is formed that can absorb the imaging at α4 to σ·.

The support base (1) provided with the buffer mechanism αη in this way is designed so that the vibration of the drive mechanism @ caused by the reaction when the movable mechanism 0υ starts and stops is transmitted from one end of the support base [1] to the other end, that is, the spindle motor (2). When it propagates in this direction, it concentrates in the section (1a) where the cross-sectional area is reduced by the groove α4. At this time, the vibration is transmitted to the buffer member (to) which is in strong contact with the side wall of the groove α4 in the direction of transmission of the image, and the image is absorbed by the buffer member αQ. It should be noted that the captured image remaining in the buffer member α0 from the side wall of the groove 0 is transmitted from the portion (1a) to the buffer member (g).

2 to 4 show buffer mechanisms according to other embodiments, and the one in FIG. From F)r
The buffer member a5 having a larger size is press-fitted into the buffer member a5. In the case shown in Fig. 3, the substantially parallel f-shaped side walls constitute a groove 04) that is perpendicular to the bottom surface, and the bottom surface of this groove α4 and the predetermined surfaces of both side walls and the buffer member (toward) are connected to each other. I'm looking forward to seeing you. Furthermore, the one in Figure 4 has a hollow shape in which the opening of the edge has a predetermined width and is wider than the side wall, bottom, or opening, and a semi-vulcanized rubber material mixed with a foaming agent is inserted into this groove. After filling and attaching the holding plate αQ, foaming and vulcanization treatment is performed to form a buffer member (i!19) that is in strong contact with each part of the groove α under a predetermined pressure.

In addition, in the third embodiment described above, the buffer mechanism αη is mounted on a support stand (
Although the case in which the buffer mechanism is configured on one side of the support base (1) has been described, the same operation as in the above embodiment can be expected even if the buffer mechanism is configured on the other side or both sides of the support base.

〔Effect of the invention〕

As described above, according to the present invention, since the buffer mechanism is provided at a predetermined position of the base, one vibration transmitted from one end of the base to the other end is absorbed by the buffer mechanism.

[Brief explanation of drawings]

FIG. 1 shows a vibration isolating device according to an embodiment of the present invention.
2 to 4 are front views showing other embodiments, FIG. 5 is a plan view showing a conventional one, and FIG. 6 is a front view. In the figure, (1) is the base, αΦ is the groove, and (to) is the buffer member. α is the presser plate. Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims (1)

[Claims] (1) The thickness of the base is reduced to a predetermined thickness by forming a groove with a predetermined cross section in the longitudinal direction at a predetermined position of a base having a predetermined thickness; A vibration isolating device, wherein a shock absorbing mechanism is formed by press-fitting an elastic shock absorbing member, and the shock absorbing mechanism absorbs vibrations transmitted from one end of the base to the other end.