JPS627632B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic disk pack for use in a computer storage file in which the storage medium can be exchanged, a so-called exchangeable magnetic disk device.

There are two types of conventional devices of this type: In one method, a disk pack containing several magnetic disks is housed in a dust-proof case, and is latched with a spring onto the spindle of the storage device body to which the magnetic head and its positioning device are attached. Cleaning air was constantly flowing into the shroud surrounding the pack.
For this reason, a blower and a filter are required, and the eccentricity of the disk pack that occurs when replacing the disk pack cannot be removed, resulting in the disadvantage that the density of the recording track cannot be increased. The other type is a so-called contact start/stop disk pack that incorporates a magnetic head that can start and stop the disk while in contact with the recording disk, and a carriage that is equipped with this magnetic head and moves linearly. in,
Although the eccentricity of the magnetic disk was removed and high track density was achieved, a complex mechanical device was required to connect the carriage and the linear motor, and a dust-proof slide shutter was required for the disk pack. The disadvantage is that both the pack itself and the magnetic disk storage device itself are expensive and complicated.

In order to solve these drawbacks, this invention
A contact start/stop type magnetic head and a rotating magnetic head positioning device are housed in the disk pack, making it completely sealed, and a simple filter installed inside to remove dust, eliminating the need for an external blower or external filter. This was designed to simplify the device.

FIG. 1 shows one embodiment of the present invention, in which (1) is a magnetic disk, 2 is a spindle, 3 is a magnetic head, 4 is a rotary positioning device, and 5 is a spindle 2.
6 is a dust removal filter, 7 is a spindle pulley, 8 is a joint for connecting the positioning device 4 and an external drive device,
9 is a sealed case equipped with a handle for transportation and an air passage. 10 is a connector for reading and writing data. 11 is an air passage, and 12 is a handle. FIG. 2 is a plan view of FIG. 1.

In FIGS. 1 and 2, the disk pack and the drive device are connected only by the spindle pulley 7, the coupling joint 8 of the positioning device, and the data connector 10, and 7 and 8 are rotating shafts.
The inside and outside of the sealed case 9 can be almost completely sealed against dust. Furthermore, when the magnetic disk 1 rotates, dynamic pressure is applied to the filter 6 provided after the positioning device 4, and since the air path 11 leads from the filter 6 to the center of the disk 1, a shadow is generated in this center. The pressure causes air to circulate inside the sealed case 9 through the filter 6, and dust is automatically removed.
Therefore, a filter and blower are not required in the external drive.

As described above, in the disk pack according to the present invention, the only mechanical connection between the inside and outside of the sealed case 9 is the rotating shaft, which not only simplifies the disk pack itself, but also has the advantage of simplifying the driving device for this pack. Moreover, since it has a built-in magnetic head positioning device, there is no eccentricity of the disk, and there is an advantage that a high track density can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing an embodiment of the present invention;
FIG. 2 is a plan cross-sectional view of what is shown in FIG.
In the figure, 1 is a magnetic disk, 2 is a spindle, 3 is a magnetic head, 4 is a rotary positioning device, 5 is a base, 6 is an air filter, 7 is a spindle pulley, 8 is a joint of the positioning device, 9 is a sealed case,
10 is a signal connector, 11 is an air passage, and 12 is a carrying handle. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1. In a magnetic disk pack for use in a replaceable magnetic disk storage device, which incorporates a magnetic head and a carriage portion of a magnetic head positioning device, the carriage portion of the magnetic head positioning device is of a rotating type. a base on which the rotating shaft and the magnetic disk rotating spindle are integrally mounted;
A sealed magnetic disk pack characterized by comprising a sealed case that covers the base so that only the spindle pulley of the rotating spindle and the connecting joint of the positioning device are exposed to the outside.