JP2002334571A - Shock absorber for storage device, and structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide effective shock absorber structure which buffers effectively large vibration and acceleration of shock transmitted from outside multi- directions and which does not prevent air cooling for radiation, for a storage device such as a hard disk drive or the like incorporated in an electronic device such as a computer. SOLUTION: Spring constant can be suppressed to a low value by stretching and fixing a shock absorber member 101 in which a wire rope is wound in a coil state in reverse directions each other, also, as it is made strong for moment, the device can buffer vibration and acceleration of shock transmitted from outside multi-directions. A high frequency at the time of shock can be suppressed by using a shock absorber member 102 of a silicone group, resonance of incorporated parts of a storage device (arm, etc.), can be prevented by two kinds of shock absorber members, and normal operation can be secured. As the shock absorber member is not attached other than in a fixed direction, space can be reduced, and as the member hindering a flow path of radiation air does not exist for radiation, high effect is obtained. Also, a shock absorber member can be selected in accordance with acceleration, the device can be applied for various purposes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is effective for a storage device such as a hard disk drive mounted on an electronic device such as a computer even for large vibrations and shock accelerations transmitted from various external directions. The present invention relates to a buffer device and a buffer structure that can buffer, and can provide a high effect because there is no member that obstructs the flow path of the radiated air with respect to space saving and heat radiation.

[0002]

2. Description of the Related Art In general, a storage device (hard disk drive) used in an electronic device such as a computer utilizes a flow of air from a magnetic disk which rotates at an extremely high speed to operate the storage device within a range of 0.05 to 0.1 microns. The magnetic head (arm) is configured to float up in the gap between the two, and the gap is not stable due to the acceleration of vibration and shock during this operation, and the writing or reading of data is erroneous or breaks (crash). There is a problem.

As a countermeasure for buffering a computer or the like mounted on a moving body (such as a ship or a car), there is a method of mounting a cushioning material between an installation surface and a computer or the like.

[0004]

However, in the above-described method, the cushioning material is compressed, and the moment characteristics and the impact resistance are reduced. In addition, since the outer surface of a commercially available computer etc. has a curved surface structure and does not have screw holes for fixing on the outer surface, the buffer material must be pressed (compressed) when fixing and cushioning measures are taken. In addition, the moment characteristic and the shock resistance are reduced.

According to the present invention, the spring constant is suppressed to be low by pulling and fixing the cushioning material from directions opposite to each other in a storage device which is weak against acceleration of large vibrations and shocks transmitted from multiple external directions. It is an object of the present invention to provide a buffer device and a buffer structure of a storage device which can operate normally and have a high effect because there is no member obstructing the flow path of the radiated air with respect to space saving and heat radiation.

[0006]

SUMMARY OF THE INVENTION The present invention has a structure in which a cushioning material is pulled and fixed from directions opposite to each other to a storage device which is vulnerable to acceleration of large vibration and impact transmitted from multiple external directions. .

[0007]

Next, embodiments of the present invention and a buffer structure will be sequentially described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the entire structure of the buffer structure of the storage device. In the following, an embodiment of the present invention will be described using a hard disk drive. However, the present invention is not necessarily limited to a hard disk drive, and includes a storage device mounted on an electronic device such as a computer.

In FIG. 1, reference numeral 10 denotes a storage device; 12, a U-shaped intermediate racket (U-shaped internal fixture) to which the storage device 10 is attached via a storage device bracket 11;
Reference numeral 13 denotes a U-shaped external fixing tool which is located outside the U-shaped internal fixing tool and is larger than the metal fitting. Reference numeral 102 denotes a high-frequency cushioning material provided on the upper surface of the storage bracket 11.
Reference numeral 1 denotes a vibration / shock buffer material interposed between the opposite sides of the U-shaped internal fixing device and the U-shaped external fixing device, and the buffer material is formed of a coil-shaped elastic material. The cushioning member 101 is configured to be attachable to and detachable from the U-shaped internal fixing tool 12 and the U-shaped external fixing tool 13.

FIG. 2 is a plan view of the buffer structure of the storage device, and shows in detail that a sufficient space is provided in front, rear, left and right of the hard disk drive 10. By attaching the hard disk drive 10 as shown, a sufficient heat radiation effect can be obtained.

FIG. 3 is an exploded explanatory view showing the parts constituting the buffer structure of the storage device of the embodiment in an exploded manner. In FIG. 3, an external fixing bracket processed from a plate material such as iron or aluminum material.
A cushioning material 101 in which a wire rope is wound in a coil shape around 13 is fixed with screws 103. The cushioning material may be ring-shaped, or a plurality of ring-shaped cushioning materials may be attached. The spring constant is suppressed to a low value by tension-fixing the cushioning material 101 in which this wire rope is wound in a coil shape to the U-shaped fixing metal fitting 12 formed by processing a plate material such as iron or aluminum material from opposite directions. This makes it possible to effectively suppress the acceleration of large vibrations and impacts transmitted from multiple external directions. The buffer effect can be adjusted by the number of turns of the buffer material. It is also highly effective for moments.

FIG. 4 is a partial view showing the details of the silicon-based cushioning material 102. A U-shaped fixing bracket 12 processed from a plate material such as iron or aluminum material and a storage device fixing bracket 11 processed from a plate material such as iron or aluminum material, and a screw formed by sandwiching a silicon-based cushioning material 102 Fixing at 103 has the effect of suppressing transmission of high frequencies generated at impact to the hard disk drive 10.

That is, an external fixing metal processed from a plate material such as iron or aluminum, a cushioning material in which a wire rope attached to the external fixing metal is wound in a coil shape, and this wire rope is wound in a coil shape. U-shaped fixing bracket processed from iron or aluminum material attached to the cushioning material
A silicon-based shock-absorbing material attached to the U-shaped fixing metal fittings, a storage device fixing metal made of a plate material such as iron or aluminum material attached to the silicon-based shock-absorbing material, and an iron or aluminum material or the like In the buffer structure of the storage device that protects the storage device (hard disk drive, etc.) attached to the storage device fixing bracket processed from the plate material from multi-directional vibration and impact acceleration transmitted from the outside, the wire rope etc. is coiled. The storage material is attached by pulling it from above and below the storage device, and a silicon-based cushioning material is also attached. With these, it is possible to buffer the acceleration up to which the storage device can operate normally. Further, by changing the wire diameter and the number of turns of the wire rope of the cushioning material in which the wire rope is wound in a coil shape, a buffer structure of the storage device according to the acceleration of vibration and impact from multiple directions transmitted from the outside is possible. .
Further, by changing the shape of the fixing bracket of the storage device, a plurality of storage devices can be mounted, and the storage device of the ISO standard or the like can be fixed. Furthermore, the front, rear, left, and right sides of the storage device become spaces and have an optimal structure for heat radiation.

As described above, according to the cushioning structure of the storage device of the embodiment, since the cushioning member in which the wire rope is wound in a coil shape is attached by pulling it up and down, the spring constant can be kept low. And the vibration and shock acceleration transmitted from multiple external directions can be buffered. In addition, by using a silicon-based cushioning material, high frequency at the time of impact can be suppressed, and normal operation of the storage device can be ensured by using two kinds of cushioning materials. Since the cushioning material is not attached in directions other than the fixing direction, a high effect can be achieved because there is no member that obstructs the flow path of the radiated air with respect to space saving and heat radiation. Further, since the cushioning material can be selected according to the acceleration, it can be applied to various uses.

[0015]

According to the present invention, since the cushioning member is mounted in a form pulled from the vertical direction, the spring constant can be suppressed low, and since the cushioning member becomes strong against a moment, the external The vibration and shock acceleration transmitted from multiple directions can be buffered.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a buffer structure of a storage device of the present invention.

FIG. 2 is a plan view showing a buffer structure of the storage device of the present invention.

FIG. 3 is a detailed perspective view showing a buffer structure of the storage device of the present invention.

FIG. 4 is a plan view of mounting a silicone-based cushioning material.

[Explanation of symbols]

 10: Storage device (hard disk drive) 11: Storage device fixing bracket 12: U-shaped fixing bracket 13: External fixing bracket 101: Cushion material wound around a wire rope in a coil shape 102: Silicon-based cushion material 103 :screw

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tomohiro Shigeno 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa F-term in Hitachi Advanced Systems, Ltd. (reference) 3J048 AA01 AC01 BC02 BC03 DA03 EA07

Claims (6)

[Claims] In a buffer structure of a recording device for protecting a storage device from external vibration and shock acceleration, a U-shaped internal fixing device to which the storage device is attached, and a U-shaped internal fixing device larger than the U-shaped internal fixing device. And between the U-shaped external fixing device located on the outer side thereof and the opposing both side surfaces of the U-shaped internal fixing device and the U-shaped external fixing device, and are tension-fixed and spatially held. And a damping material, wherein the storage device can attenuate the acceleration to an operable acceleration irrespective of the direction of up, down, left, right, front and rear. 2. The buffer device according to claim 1, wherein said buffer member is made of a coil-shaped or ring-shaped elastic member. 3. An external fixing metal processed from a plate material such as iron or aluminum, a cushioning material formed by winding a wire rope attached to the external fixing metal into a coil, and a coil obtained by winding the wire rope into a coil. U-shaped fixing bracket processed from iron or aluminum material, etc. attached to the cushioning material, silicon-based cushioning material attached to the U-shaped fixing bracket, and silicon-based cushioning material Vibration from multiple directions transmitted from the outside to the storage device fixing bracket processed from the attached plate material such as iron or aluminum material and the storage device mounted on the storage device fixing device processed from the plate material such as iron or aluminum material In a buffer structure of a storage device that protects against shock acceleration, a buffer material in which the wire rope or the like is wound in a coil shape is attached by being pulled from above and below the storage device, and a silicon-based buffer material is also attached. Buffer structure of a storage device according to claim structure storage device attenuates until operable acceleration normally by. 4. A structure in which the wire rope has a buffering function in accordance with the acceleration of vibrations and impacts from multiple directions transmitted from the outside, depending on the wire diameter and the number of turns of the wire rope of the cushioning material wound in a coil shape. 4. The buffer structure for a storage device according to claim 3, wherein: 5. The buffer structure for a storage device according to claim 3, wherein the fixing device of the storage device is detachable, and a fixing device having a shape corresponding to the buffering accuracy of the storage device can be used. 6. The buffer structure for a storage device according to claim 3, wherein said storage device is arranged so that a space is formed in front, rear, left and right of said storage device.