JPH04155894A - Electronic device - Google Patents

Abstract

PURPOSE:To obtain a practical electronic device which can easily absorb shocks and displacement by a method wherein a mounting female thread is provided to a board for mounting the device on a system, and slits are radially engraved at the center of a male screw to enable it to have elasticity. CONSTITUTION:This fixing disk device 1 is formed of a flexible case 5 structure formed of an aluminum plate through a bending work to be lightweight and miniature, and two female threads 7 are provided to each of the sides of the case 5. Four slits 9a, 9b, 9c, and 9d are radially provided to the center of the female thread 7 as long as prescribed. Therefore, as the part of the flexible case 5 fastened to a mounting member 11 by mounting machine screws 13 is elastic, it works as a buffer, in result shocks or displacement induced from a system side or distortion caused by the fastening of the mounting machine screw are effectively absorbed by the part concerned. Furthermore, a joggle is formed on a part adjacent to the female thread 7 of the case 5, whereby the merits of the case 5 are effectively promoted by the elasticity of the joggle concerned.

Description

[Detailed Description of the Invention] [Summary] An object of the present invention is to provide an electronic device in which shocks, external forces, etc. are less likely to be applied to the device itself when the electronic device is installed or when the system is used after installation. A female screw portion is formed on the plate portion of the electronic device for attachment to the system, and a plurality of slits are carved radially from the center of the female screw portion so that the portion can have elasticity. Configure.

[Industrial application field]

The present invention relates to an electronic device installed in a system.

[Conventional technology]

In recent years, as systems such as information processing devices have become more portable, the compact storage devices installed therein, such as floppy disk drives (FDD) and fixed disk drives (HDD), have become significantly smaller and lighter.

Generally, these FDDs and HDDs are securely fixed to the system with screws at their four corners from the viewpoint of operational reliability and stability.

[Problem to be solved by the invention]

However, if these storage devices are firmly fixed at the four corners as in the conventional method described above, due to their delicate structure, the storage devices may become distorted as a whole during installation or severe use after system installation. There is a disadvantage that off-track tends to occur.

Therefore, an object of the present invention is to provide a practical and practical electronic device that can absorb shock and displacement in a simple and convenient manner, although there is no particular difference from the conventional device in terms of fixation.

[Means to solve the problem]

In order to solve the above problems, an electronic device according to the present invention has a female screw portion formed in a plate portion of the electronic device for attachment to a system, and a plurality of slits radially carved from the center of the female screw portion. However, the structure is characterized in that the portion thereof has elasticity.

[For production]

For mounting electronic devices, multiple slits are cut radially from the center of the female threaded part, and this part is made to have elasticity, so that it can be easily mounted to the system or exposed to external force during subsequent use of the system. Even if such factors act, off-track is less likely to occur because they are relaxed and absorbed.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a side view of a small storage device according to an embodiment of the present invention, Fig. 2 is an enlarged view of a female threaded portion for mounting to a system formed on the small storage device, and Fig. 3 is a system of the small storage device. The figure shows a cross-sectional side view of the main part of the part.

First, referring to FIG. 1, reference numeral 1 denotes a small storage device, such as a box-shaped fixed disk device (HDD), which includes a disk-shaped disk 2 for recording information, and a head 3 for accessing information.
etc. are built-in.

This fixed disk device 1 consists of a slender casing 5 structure made of bent aluminum plate material in response to the request for reduction in size and weight.
Female threads 7 for attachment are formed at two locations on each side. Referring to FIG. 2, which is an enlarged view of the internal thread 7, the first characteristic point is that the internal thread 7 is extracted and enlarged.
Four slits 9 (9a, 9b,
9c.

9d) are each formed with a predetermined length. Therefore, for example, as shown in FIG.
When the screw 13 is attached to the mounting member 11, it becomes a substantial shock absorber due to its elasticity, and the impact or displacement from the system side or the tightening of the mounting screw 13 will be prevented. Time distortions etc. are effectively alleviated there.
Absorbed.

Furthermore, a second characteristic feature of this embodiment is that the vicinity of the female screw 7 portion of the housing 5 is formed with a so-called dowel in the direction of the interior of the housing, largely coaxially around the -circuit. The elasticity of this doweled portion efficiently promotes the above-mentioned first feature. Furthermore, because of this doweled portion, it can be expected that the screw 13 will be prevented from loosening during installation.

FIG. 4 shows the experimentally confirmed effects of this embodiment. This figure shows the measured track deviation in the head section when various steps are provided at any of the four corners of the device. With the conventional structure, the track deviation is extremely large as shown in (b), but with the structure of this embodiment (a), the track deviation is overall small. This means that the device itself is less distorted during use.

That is, off-track can be suppressed to a minimum, and the reliability of the system 20 is improved.

〔Effect of the invention〕

As described above, according to the present invention, even if an external force is applied when an electronic device is attached to a system or when the system is subsequently used, it can be easily and effectively alleviated and absorbed. It is possible to achieve high reliability and long life of electronic devices.

[Brief explanation of drawings]

Fig. 1 is a side view of a small storage device according to an embodiment of the present invention, Fig. 2 is an enlarged view of a female threaded portion for attachment to a system formed on the small storage device, and Fig. 3 is a system of the small storage device. FIG. 4 is a cross-sectional side view of the main part of the mounting section, and FIG. 4 is an explanatory diagram of the experimental effects of the embodiment. 1...Small storage device, 2...Disk, 3...
・Head, 5... Housing, 7... Female thread, 9 (9a, 9b, 9c, 9d) - Slit, 1
1...Mounting material, 13...Mounting with screws, 2
0...System.

Claims (1)

[Claims] 1. A female threaded portion (7) for attachment to the system (20) is formed on the plate portion of the electronic device (1), and the female threaded portion (7) is formed on the plate portion of the electronic device (1).
7) An electronic device in which a plurality of slits (9) are carved radially from the center of the electronic device so that the slits (9) can have elasticity.