JPH0729362A - Floppy disk device - Google Patents

Abstract

PURPOSE:To reduce the thickness of the floppy disk device by equipping a printed circuit board packaged with the highest electric parts in a position where the parts are inserted into a space which is made at the time of opening a shutter of a floopy disk. CONSTITUTION:The highest electric parts out of packaged electric parts 8 on the printed circuit board 6 are packaged in the position to be inserted into the space of a case 3, made by opening the shutter 2 after loading the floppy disk. By this constitution, the printed circuit board 6 can be disposed to be adjacent to the floppy disk, and hence the thickness of the floppy disk device 10 can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floppy disk device for housing a recording medium in a case and mounting a floppy disk for recording or reproducing information, and more particularly to means for thinning the same.

[0002]

2. Description of the Related Art FIG. 4 is a cross-sectional view showing a state before a floppy disk is mounted, which is an example of a conventional floppy disk device.

A conventional floppy disk device for accommodating a recording medium in a case and mounting a floppy disk for recording or reproducing information is as follows: When the floppy disk 1 is pushed in the direction of arrow X in FIG. FIG. 2 is a diagram showing a first embodiment of the present invention, but in a part common to the conventional floppy disk device, description will be given with reference to FIGS. 1 and 2), in case 3 After opening the shutter 2 that can be opened and closed at a position corresponding to the contact portion between the recording medium 4 housed in the disk and the magnetic head 31 of the floppy disk device 30, recording is performed on the spindle motor 25 by the mounting mechanism (not shown). The medium is mounted and rotated to move the magnetic head 31 held by the magnetic head support portion 29 to a specified position on the recording medium, and the magnetic head 31 moves the recording medium to the recording medium. It is doing the recording or reproduction of information Te. These operations are controlled by an electronic circuit composed of electric components 28 mounted on the printed wiring board 26.

The relationship between the floppy disk 1 and the floppy disk device 30 after the floppy disk 1 is mounted is as shown in FIG. 2 (a), in which the shutter 2 is housed in the case 3 by moving to the right. A part of the recording medium 4 is exposed, and subsequently, as shown in FIG. 4, the floppy disk 1 moves downward and is held by the floppy disk receiving portion 27, and the recording medium 4 is mounted on the spindle motor 25. The mounting operation is completed when the magnetic head 31 contacts the exposed portion of the recording medium 4.

The conventional floppy disk device 30 is arranged such that the upper limit position of the electric component 28 mounted on the printed wiring board 26 is not higher than the lowermost surface of the mounted floppy disk 1. Therefore, depending on the size of the highest electrical component, the printed wiring board 2
6 mounting position, that is, floppy disk device 30
Is limited in thickness.

[0006]

As described above, since the thickness of the conventional floppy disk device is limited by the height of the electric components mounted on the printed wiring board, there is a limit to the thinning of the floppy disk device. Has the drawback that there is.

[0007]

A floppy disk drive of the present invention has a shutter which can be opened and closed at a position corresponding to a contact portion between the recording medium and the magnetic head of the case, the recording medium being housed in the case. A floppy disk device for mounting information on a floppy disk for recording or reproducing information, the magnetic head for recording or reproducing information on the recording medium, and a magnetic head support for holding and moving the magnetic head. Section, a spindle motor for rotating the recording medium, an attachment mechanism section for attaching the recording medium to the spindle motor after opening the shutter, and an opening of the shutter when the recording medium is attached to the spindle motor. The electrical components with the highest height are mounted at the position where they are inserted into the space of the case caused by It is those in which a preparative wiring board,
Further, the printed wiring board is provided in which the electric component is embedded by penetrating a portion corresponding to the highest electric component.

[0008]

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

FIG. 1 is a view showing a state before mounting a floppy disk of a first embodiment of the present invention, (a) is a plan view, (b) is a cross-sectional plan view taken along the line AA, and FIG. 2 is It is a figure which shows the state after mounting the floppy disk in the Example of FIG. 1, (a) is a top view, (b) is a BB sectional drawing.

In FIG. 1, a floppy disk device 1
0 pushes the floppy disk 1 in the direction of arrow X,
After the shutter 2 is moved to the right to open it to expose a part of the recording medium 4 housed in the case 3, the mounting mechanism (not shown) causes the spindle motor 5 to move the recording medium 4 (see FIG. 2) and rotate it,
The magnetic head 11 held by the magnetic head support 9 is moved to a designated position on the recording medium 4, and the magnetic head 11 records or reproduces information on or from the recording medium 4. These operations are controlled by an electronic circuit configured by the electric components 8 mounted on the printed wiring board 6.

The relationship between the floppy disk 1 and the floppy disk device 10 after the floppy disk 1 is mounted is as shown in FIG. 2 (a), the shutter 2 is moved to the right to be housed in the case 3. A part of the recording medium 4 is exposed, and subsequently, as shown in FIG. 2B, the floppy disk 1 moves downward and is held by the floppy disk receiving portion 7, and the recording medium 4 is set by the spindle motor 5. When the magnetic head 11 is mounted and comes into contact with the exposed portion of the recording medium 4, the mounting operation is completed.

In the floppy disk device 10, among the electric components 8 mounted on the printed wiring board 6, the electric component having the highest height is inserted into the space in the case 3 generated by opening the shutter 2. It is mounted at the position Therefore, since the printed wiring board 6 can be arranged closer to the floppy disk 1 by that amount,
It is possible to reduce the thickness of the floppy disk device 10.

3A and 3B are views showing a state before mounting the floppy disk of the second embodiment of the present invention, FIG. 3A is a plan view and FIG. 3B is a sectional view taken along line CC.

The structure of this embodiment is almost the same as the structure of the embodiment shown in FIG. 1, but only the relationship between the highest electric component 18 and the printed wiring board 16 is different.

That is, the electric component 18 mounted at a position to be inserted into the space in the case 3 generated by opening the shutter 2 has a terminal shape of that of the electric component 8 of the embodiment of FIG. On the other hand, the printed wiring board 16 is mounted in such a manner that the portion corresponding to the electric component 18 is hollowed out and the electric component 18 is embedded.

With this structure, the printed wiring board 16 can be arranged closer to the floppy disk 1 than in the embodiment of FIG. 1, and therefore the thickness of the floppy disk device 20 can be further reduced. It becomes possible.

[0017]

As described above, in the floppy disk device of the present invention, when the recording medium is mounted on the spindle motor, the highest electric component is located in the space of the case caused by opening the shutter of the floppy disk. By mounting the electric components on the printed wiring board so that the printed wiring board is inserted, the printed wiring board can be arranged close to the floppy disk, and thus the thickness of the floppy disk device can be reduced. There is an effect.

[Brief description of drawings]

1A and 1B are views showing a state before a floppy disk according to a first embodiment of the present invention is mounted, wherein FIG. 1A is a plan view and FIG.
Is a cross-sectional plan view taken along the line AA.

2A and 2B are views showing a state after mounting a floppy disk in the embodiment of FIG. 1, in which FIG. 2A is a plan view and FIG. 2B is a sectional view taken along line BB.

3A and 3B are diagrams showing a state before mounting a floppy disk of a second embodiment of the present invention, FIG. 3A is a plan view, and FIG.
Is a sectional view taken along line CC.

FIG. 4 is a cross-sectional view showing a state before mounting a floppy disk of an example of a conventional floppy disk device.

[Explanation of symbols]

 1 Floppy Disk 2 Shutter 3 Case 4 Recording Medium 5 ・ 15 ・ 25 Spindle Motor 6 ・ 16 ・ 26 Printed Wiring Board 7 ・ 27 Floppy Disk Receiver 8 ・ 28 Electric Parts 9 ・ 29 Magnetic Head Support 10 ・ 20 ・ 30 Floppy Disk unit 11.31 Magnetic head

Claims (2)

[Claims] 1. A recording medium is housed in a case, and a floppy disk having an openable shutter at a position corresponding to a contact portion between the recording medium and the magnetic head of the case is mounted to record or reproduce information. A floppy disk device for performing the above, wherein the magnetic head records or reproduces information on or from the recording medium, a magnetic head supporting portion for holding and moving the magnetic head, and a spindle motor for rotating the recording medium. A mounting mechanism that mounts the recording medium on the spindle motor after opening the shutter, and is inserted into the space of the case caused by opening the shutter when the recording medium is mounted on the spindle motor. And a printed wiring board on which an electric component having the highest height is mounted at a position. Disk device. 2. A floppy disk device according to claim 1, further comprising a printed wiring board mounted by embedding the electric component by hollowing out a portion corresponding to the highest electric component.