JPS6093667A - Magnetic disc driving device - Google Patents

Abstract

PURPOSE:To reduce the number of parts and to assemble a cassette storage body easily by forming flanges having guide holes for moving the cassette storage body vertically in one body with chassis on both the sides of an upper part of the chassis. CONSTITUTION:The flanges 22 to be also used as right and left side plates are formed in one body on both the sides of the chassis 16 and the guide holes 23 are formed on the front and back parts. The cassette storage body 24 into which a cassette 5 is to be inserted is provided with rotating rollers 25 elastically fitted to the sides and moved in the guide holes 23 by the rotating rollers 25.

Description

DETAILED DESCRIPTION OF THE INVENTION [Original Field of the Invention] The present invention relates to magnetic disk drives, and more particularly to improvements in device assemblability.

[Background of the invention]

A conventional configuration will be explained with reference to FIG.

A shaft 3 directly connected to the drive device 2 is provided in the center of the chassis 1 on which each component of the device is attached, and this shaft 3 has a magnetic disk 4? The cassette 5 with built-in is the cassette storage body 6.
The hub 7 provided at the center of the air disk 4 is also mounted on the chassis l. On both sides of the chassis 1, there are a right side plate 8, a left side plate 9, and a right side cover plate 11, a left side cover plate 12, and a mounting screw 13, respectively, to prevent the rotary row 210 from coming off when the cassette storage unit 6 is moved up and down. are fixed to both sides of the chassis l. Furthermore, although the front panel 14 is attached to the front surface, there are many parts that are fixed to both sides of the chassis l, making it difficult to assemble. There is a possibility that the guide hole 15 may shift when the right side plate 8 and left side plate 9 are fixed with the mounting screws, and if this guide hole 15 is scratched, the cassette storage body 6 containing the cassette 5 will not fall evenly when it is installed on the chassis l side. Therefore, the contact between the magnetic disk 4 and the magnetic head (not shown in FIG. 1) is poor, resulting in a drawback that desired characteristics cannot be obtained.

As described above, the conventional example has a large number of parts, is difficult to assemble, is expensive, and has problems in terms of characteristics.

[Purpose of the invention]

The purpose of the present invention is to solve the above-mentioned drawbacks of the prior art. This has the advantage of simplifying the configuration.

[Keystone of invention]

The feature of the present invention is that on both sides of the upper part of the chassis,
It is formed integrally with a flier/jikesher 7 having a guide hole for vertically moving the cassette storage body.

[Embodiments of the invention]

Hereinafter, embodiments will be described based on the drawings.

16 is a shear 7 to which each component of the device is attached.

Reference numeral 17 denotes a boss formed integrally with the chassis, and a housing 19 that supports a drive device 18'ir for rotating the magnetic disk 4 contained in the cassette 5 is attached to the inner diameter side of the boss. . A shaft 20 directly connected to the drive device 18 is provided with a hub receiver 21 on which a hub 7 provided at the center of the magnetic disk 4 is placed. The magnetic disk 4 is solidly layered on a hub 7, and is configured to be mounted on the tip of a shaft 20 and centered.

On the other hand, as shown in FIG. 5, the chassis 16 has flanges/jigs made of 22 metal metal on both sides, which serve as both the right side plate and the left side plate shown in the conventional example. A guide hole 23 is provided in the.

The cassette storage body 24 into which the cassette 5 is inserted has a rotating roller 25 attached to the side surface thereof, and the rotating roller 225 allows the guide hole 23 to be moved vertically.

A collet 26 is rotatably attached to the tip of the conduit support 27, and is used to press the hub 7 at the center of the magnetic disk 4 with an appropriate load.

Reference numeral 28 denotes a carriage, and a lower magnetic head 29 for writing and reading all data on the magnetic disk 4 is provided at the tip of the carriage 28. At the top there is 1
When the cassette 5 is inserted, data is loaded onto both sides of the magnetic disk 4, and the upper S magnetic head 3 is used to read the data.
0 is provided at the tip of the helad arm 31. Normally, the centers of the read/write cores of the lower magnetic head 29 and the upper magnetic head 30 are positioned offset by 8 trunks in the case of a track density of 100 lines per 100'l'pj11 inch). Reference numeral 32 denotes a head arm spring for applying an appropriate load when the upper magnetic head 3° is placed in the IM position on the magnetic disk 4.

The carriage 28 and helad arm 3 configured in this way
1e Magnetism No. 74244 hv via the steel belt 35 attached to the motor 330
Let's move 1 along with the recorder VC of the concentric internal law +
1 has been completed.

[Moving body of invention-]

In addition to the above construction, according to the present invention, flanges 22 having guide holes 23 at the front and rear are formed integrally with the seven beams 16 on both sides of the upper part of the shear 716. Compared to the example, the number of parts is small and it is not a cheap groove or scale, and the cassette storage body 24 can be easily installed, and the guide hole 23 does not slide from side to side, so 5 cassettes can be stored L, /yarn 16 side. When loading the magnetic disks 4, the cassette storage bodies 24 fall uniformly, so that stable loading of the magnetic disks 4 can be achieved.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing a conventional example, Figs. 2 and 3 are sectional views showing the present invention when the cassette is not inserted and when it is inserted, Fig. 4 is a top view, and Fig. 5 is a cassette of the present invention. FIG. 2 is an exploded perspective view of essential parts of the invention.

Claims (1)

[Claims] 1. A drive device that rotates the entire rotation of the magnetic disk, and a magnetic head that performs all of the writing and reading operations on the magnetic disk.
In a magnetic disk drive device that is equipped with a knob holder at the tip of the drive device to accommodate cassettes, flanges with guide holes for vertically moving the cassette storage body on both sides of the upper part of the chassis are integrated with the chassis. A magnetic disk drive device characterized in that it is formed as follows.