JPH04155683A - Small-sized memory - Google Patents

Abstract

PURPOSE:To suppress an off-track to a minimum limit by clamping and mounting one of two positions of both sides of substantially at the center of a stroke of a head, and mounting the other in a universal joint type to mount fixedly a small-sized memory in a system. CONSTITUTION:A memory 1 is clamped at a mounting member 6a with a screw 8 at a base 20 at one side of substantially a center of a stroke of a moving head 3 and secured at a mounting member 6b at the base 20 in a form of pressing to a universal joint type via a protrusion 11 of a pressing member 10 at the other. Thus, when the memory 1 is mounted fixedly in a system, a useless force is scarcely applied. Even if an external force for bending the entirety is applied at the time of using the system, its shape is easily self-held at two mounting parts in a seesaw manner. Accordingly, its off-track is suppressed, and reliability, stability are improved.

Description

[Detailed Description of the Invention] [Summary] The present invention relates to a small storage device, and provides a small storage device in which the device itself is not easily deformed during installation or when the system is used after installation, and therefore, off-track is unlikely to occur. For the purpose of installing and fixing a small storage device in a system, one of the two locations on both sides sandwiching approximately the center of the stroke of the moving head of the storage device is fastened to one side, and the other is attached using a universal joint type. It is configured so that it is attached to the

[Industrial application field]

The present invention relates to a small storage 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, their delicate structure makes it difficult to install them, and the storage devices can become distorted (twisted) as a whole during harsh use after installation. ), there is a disadvantage that so-called off-track is likely to occur.

An object of the present invention is therefore to provide a practical and practical compact storage device that is not particularly different from conventional devices in terms of fixation, but can minimize off-track.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides a method for attaching and fixing a small storage device to a system by fastening one of the two locations on both sides of the storage device across the approximate center of the stroke of the moving head of the storage device. , and the other is attached in a universal joint type.

[For production]

Of the two locations on both sides of the center of the head stroke,
One side is fastened and the other is attached using a universal joint to securely attach the small storage device to the system, so the device can be attached securely at all four corners even if external forces are applied during the installation or when the system is in use. Since it is not fixed, it is difficult to apply excessive force.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of a small-sized storage device according to an embodiment of the present invention, and FIG. 2 is a front view of the small-sized storage device of FIG. 1.

Referring to these figures, l is a small storage device such as an FDD or an HDD, which includes a disc-shaped disk 2 for recording information, a head 3 for accessing information, and a drive mechanism 4 for driving the head 3. It has a box-shaped external shape.

This storage device 1 has an extremely slender frame structure made by bending an aluminum plate due to the need for a smaller size and lighter weight.
Since a system is adopted in which the position of the head 3 is guaranteed only by the feeding accuracy (not shown in detail), the structure of its installation poses a major problem.

Hereinafter, the characteristic part of this embodiment that solves this problem will be explained. The storage device 1 is attached to the base 20 of the system via irregularly shaped attachment members 6a and 6b on both sides thereof. To explain this in more detail, storage device 1
is fixed to the base 20 at two locations on both sides of the moving head 3, which is substantially at the center of its stroke. That is, on one (left) side, the mounting member 6a is fastened to the base 20 with screws 8, and on the other (right) side, the mounting member 6b is the conical protrusion of the suppressing member 10 screwed to the base 20. The storage device 1 is fixed to the base 20 by being pressed against the base side by a universal joint 11.

Therefore, when installing or fixing the storage device 1 to the system, unnecessary force is not applied to it, and even if an external force that bends (or twists) the entire system is applied, the above two attachment points will not be affected. It can easily maintain its shape in a seesaw manner around the center. Therefore, great effects can be expected in terms of reliability and stability, such as suppression of off-track.

Here, FIG. 3 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. If the conventional structure is used, the track deviation is extremely large as shown in (b), but according to the structure of this embodiment, the track deviation is generally small (b).
In other words, this means that the device itself is less likely to be distorted during installation or even when the system is used after installation. In other words, off-track can be suppressed to a minimum and system reliability can be improved.

The mounting member 6b is mounted by inserting the conical protrusion 11 of the suppressing member 10 into the through hole for screws, and instead of pressing the conical protrusion 11 of the suppressing member 10, a recess is provided in the mounting member 6b and the recess is inserted from above at a single point (pivot). It is also possible to apply pressure (formula).

〔Effect of the invention〕

As described above, according to the present invention, a small storage device is supported at two points with the part where off-track occurs as a boundary,
Since the structure is such that one side is fastened and the other side is attached as a universal joint, external forces are less likely to act on the inside, thereby minimizing off-tracking and improving the reliability of the system.

[Brief explanation of drawings]

FIG. 1 is a plan view of a small storage device according to an embodiment of the present invention, FIG. 2 is a front view of the small storage device, and FIG. 3 is a diagram illustrating the experimental effects of the embodiment. 1...Storage device, 2...Disk, 3
...Head, 4...Drive mechanism, 5a,
6b...Mounting member, 8...Screw.

Claims (1)

[Claims] 1. In order to attach and fix the small storage device (1) to the system, one of the two locations on both sides sandwiching approximately the center of the stroke of the moving head (3) of the storage device (1) is fastened, and the other is fixed. A small storage device that is attached in a joint type.