JPH0617275Y2 - Magnetic disk drive - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a magnetic disk drive device for driving a magnetic disk such as a floppy disk or a hard disk.

[Prior art]

In a conventional floppy disk drive device used as a single unit, the drive unit is housed in an outer box, and the drive unit is directly screwed to the outer box from the outside of both the left and right sides of the outer box, or in Japanese Utility Model Laid-Open No. 61-182994. As disclosed, a bracket or the like is used to screw the front box of the outer box with a screw.

[Problems to be solved by the device]

For this reason, the heads of the screws protrude from both the left and right sides or the front of the outer box, and the horizontal type cannot be placed vertically, and the vertical type cannot be placed horizontally. It was uneconomical because the mold had to be manufactured separately. Further, since the heads of the screws were exposed on both the left and right sides or the front surface of the outer box, this was visible from the front and the appearance was bad. Furthermore, since the drive unit is screwed to the outer box itself, the drive unit receives the impact applied from the outside to the outer box as it is, the protection is not sufficient, and the drive unit is covered by the outer box during the installation work,
Positioning was troublesome, and assembly work and maintenance were troublesome. An object of the present invention is to provide a magnetic disk drive device capable of eliminating such conventional problems.

[Means for Solving the Problems]

The magnetic disk drive device according to the present invention comprises a drive unit for driving a floppy disk or a hard disk, an inner frame and an outer box. The inner frame is provided with a unit attachment / detachment port into which a drive unit can be detachably inserted, and a step portion is formed on the peripheral edge of the front face.
Further, both side plates are provided with a unit fixing concave-convex portion whose inner surface is convex and whose outer surface is concave, and screw fixing holes are formed in the unit fixing concave-convex portion. Further, the front and rear surfaces of the outer box are opened, and the outer box can be fitted and detached with the inner frame to cover it. In this magnetic disk drive device, the drive unit is inserted into the inner frame from the unit attaching / detaching port, and is screwed to the unit fixing concave-convex portion through the screw fixing hole of the unit fixing concave-convex portion, and the outer box has the front end peripheral edge of the inner frame. It is fitted with the inner frame until it comes into contact with the stepped part, and the rear end of the outer box is screwed to the rear surface of the inner frame to complete the process.

[Action]

According to such a magnetic disk drive device, the drive unit is doubly protected by the inner box and the outer box.
Assembling is easy by screwing the unit fixing irregularities on both sides of the inner frame with the drive unit exposed, then covering the inner frame with the outer box and screwing the rear end of the outer box to the rear surface of the inner frame. You can do it. Since the screws do not protrude on the front surface, left and right sides, and upper and lower sides of the outer box, it can be used horizontally or vertically.

【Example】

An embodiment of the present invention, which is a one-drive type floppy disk drive device, will be described in detail below with reference to the drawings. As shown in FIG. 1, this floppy disk drive device is completed by assembling a known drive unit 1 for driving a floppy disk, a metal inner frame 2 and a metal outer box 3. FIG. 3 is a perspective view of the completed state as seen from the rear, and FIGS. 4 and 5 are sectional views. The inner frame 2 includes a front frame 5 having a rectangular unit attachment / detachment port 4 into which the drive unit 1 can be detachably inserted and left and right front half side plates 6 as shown in FIGS. 1, 4, and 5.
And a rear frame 9 in which a rear plate 7 and left and right rear half side plates 8 are integrally provided are fixed to each other in a rectangular frame, and the upper and lower surfaces are completely open in the figure. The front half portion side plates 6 on both the left and right sides are bent at the front end portion 6a and the rear end portion 6b into an L shape. The front end portion 6a is joined (welded) to the inside of the front frame 5 as shown in FIG. 5, and a step portion 5a is formed between the peripheral edge of the front frame 5 and the side plate 6. There is. Further, the rear end portion 6b is joined (welded) to the L-shaped front end portion 8a of the rear half side plate 8 so that the front half side plate 6 and the rear half side plate 8 are continuously left and right side plates 10. ing. Since the front and rear ends 6a and 6b of the front half side plate 6 are bent in the L shape as described above, most of the space between them is left and right side plates 10.
In the unit fixing concave and convex part, the inner surface is convex and the outer surface is concave.
It is 10a. The unit fixing concave-convex portion 10a is provided with two screw holes 11 in the front and rear for fixing the drive unit 1 with screws, which are slightly long in the front-rear direction. Further, the rear side plate 8 is provided with two front and rear screw holes 13 for screwing and fixing the unit connecting board 12.
Further, screw holes 14 for screwing and fixing the outer case 3 are formed at both ends of the rear plate 7. A power switch 15 is provided on the front frame 5, a plurality of connectors 16 for external connection are provided on the outside of the rear plate 7 as shown in FIG.
17 are pulled out. The outer box 3 has a square tubular shape in which front and rear surfaces are open and upper, lower, left, and right plates are integrally formed, and a rear end frame portion 18 bent inward is integrally formed on a peripheral edge of the rear surface opening. It is provided. The screw holes of the rear plate 7 of the inner frame 2 are provided on both sides of the rear end frame portion 18.
A screwing hole 19 is formed to face 14. To assemble the drive unit 1, the inner frame 2 and the outer box 3, the unit connecting boards 12 are previously attached to the rear half side plates 8 on both sides of the inner frame 2.
After fixing with a screw 20, do as follows. As shown in FIG. 2, the drive unit 4 is inserted into the inner frame 2 from the unit attaching / detaching port 4 along the unit fixing concave and convex portions 10a on both sides, and the die cast substrate of the drive unit 4 is formed.
The screw holes 22 provided on both sides of the unit 21
The screw 23 is inserted into the screw hole 22 through the screw hole 11 so as to be aligned with the screw hole 11 of the screw hole 10a, and tightened to fix the drive unit 4 to the unit fixing concave and convex portions 10a on both sides. In this case, since the screw holes 11 are slightly longer in the front and rear, the position of the drive unit 1 can be adjusted slightly in the front and rear. The head of the screw 23 is located in the gap 24 between the unit fixing concave-convex portion 10a and the outer case 3, and is not exposed to the outer surface of the outer case 3. After fitting the female connector 26 on the unit connection board 12 side to the male connector 25 (FIG. 1) on the drive unit 1 side, these are fitted so that the outer box 3 covers the inner frame 2, and the outer box 3
The peripheral edge of the front end of is contacted with the step portion 5a of the inner frame 2. And
The screw 27 is screwed into the screw hole 14 of the rear plate 7 of the inner frame 2 through the screw hole 19 provided in the rear end frame portion 18 of the outer box 3, and the outer box 3 is fixed to the rear plate 7 for completion. To do. The floppy disk drive device thus completed is doubly protected by the drive unit 1 or the inner frame 2 and the outer box 3, and the side plates 10 on both sides of the inner frame 2 and the drive unit 1 and the unit connecting board 12 are fixed. The screws 20 and 23 are covered by the outer box 3, and only the front surface of the drive unit 1, the front frame 5 and the rear plate 7 of the inner frame 2, and the head of the screw 27 for fixing the outer box 3 are exposed. The above-mentioned embodiment is the case of the one-drive type floppy disk drive device, but in the case of the two-drive type, as shown in FIG.
Two stages of screw holes 11 may be provided in 10a. Further, the present invention can be applied not only to the floppy disk drive device but also to a hard disk drive device.

[Effect of device]

According to the present invention, the drive unit can be doubly protected by the inner box and the outer box. Assembling is easy by screwing the unit fixing irregularities on both sides of the inner frame with the drive unit exposed, then covering the inner frame with the outer box and screwing the rear end of the outer box to the rear surface of the inner frame. You can do it. Since the screws do not protrude on the front surface, left and right sides, and upper and lower sides of the outer box, it can be used horizontally or vertically.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a drive unit, an inner frame, and an outer box,
2 is a perspective view in which the drive unit and the inner frame are combined from the state of FIG. 1, FIG. 3 is a perspective view of a completed state, and FIG.
FIG. 5 is a vertical sectional view thereof, FIG. 5 is a horizontal sectional view of the same, and FIG. 6 is a perspective view of another example of the inner frame. 1 ... Drive unit, 2 ... Inner frame, 3 ... Outer box, 4
...... Unit attaching / detaching port, 5a ... Step, 7 ... Rear plate, 10 ...
… Side plate, 10a …… Unit fixing irregularities, 11 …… Screw holes, 23, 27 …… Screws.

Claims (1)

[Scope of utility model registration request] 1. A drive unit for driving a floppy disk or a hard disk, and a unit attaching / detaching port into which the unit can be detachably inserted are provided on the front surface, and a step portion is formed on the peripheral edge of the front surface, and both side plates are provided. , An inner frame having convex and concave inner surfaces and concave and convex outer surfaces, and an inner frame having screw holes formed in the concave and convex unit fixing, and a front and rear part which is removably fitted to the inner frame to cover it. It consists of an outer box with an open surface.The drive unit is inserted into the inner frame from the unit attaching / detaching port, and is screwed to the unit fixing concave / convex part through the screw fixing hole of the unit fixing concave / convex part. A magnetic disk drive device characterized in that it is fitted into the inner frame until it comes into contact with the stepped portion of the frame, and the rear end of the outer box is screwed to the rear surface of the inner frame.