JPS62124685A - Disk cassette - Google Patents

Abstract

PURPOSE:To prevent the disconnection of a write protector effectively by a simple constitution by forming a slidable coupling section that couples to each other in a write protector housing section and a write protector. CONSTITUTION:Tapered parts 19a that fit to the tapered part 17a of a guide hole 17 of a lower receiving frame 15 are formed on both sides of a convex part 19 formed in a write protector 18. An upper receiving frame 14 and a lower receiving frame 15 are formed in corresponding the corners of an upper case 12 and a lower case 13, and a write protector housing section 16 is formed by the upper receiving frame 14 and lower receiving frame 15. Tapered parts 19a are formed in the convex part 19 of the write protector 18, and a tapered part 17a is formed in the guide hole 17 of the lower receiving frame 15, and these are coupled. Accordingly, the disconnection of the write protector can be prevented effectively by the simple constitution. Further, the efficiency of assembling of a disk cassette can be improved remarkably.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a disk cassette such as a floppy disk used for magnetic recording and reproduction.

[Technical background of the invention and its problems] In recent years, floppy disks have been widely used as recording media for devices such as personal computers and word processors. ing.

As such a small floppy disk, a disk cassette in which a magnetic disk is housed in a case is used.

FIG. 5 shows such a conventional disk cassette from the back side, and in the figure, reference numeral 1 indicates a case body consisting of an upper case 2 and a lower case 3. As shown in FIG. A magnetic disk 4 is accommodated within the case body 1. Further, as shown in FIGS. 6 and 7, an upper housing frame portion 5 and a lower housing frame portion 6 are formed at corresponding corners of the tenth case 2 and the lower case 3 of the case body 1, and an upper housing frame portion 5 and a lower housing frame portion 6 are formed. A light protector accommodating portion 7 is formed by the accommodating frame portion 5 and the lower accommodating frame portion 6. The upper storage frame 5 is formed with a window 5a for detecting whether recording is possible, and the lower storage frame 6 is formed with a guide hole 6a and a protrusion 6b for locking the light protector. There is. The light protector 8 shown in FIGS. 8 and 9 is placed in the light protector accommodating portion 7, with the convex portion 8a formed on the light protector 8 facing downward 11! as shown by the arrow in FIG. Fit into the guide hole 6a of the container frame 6! , further attach the bifurcated leg portion 8b of this light protector 8 to the protrusion 6b of the housing frame portion 6.
are housed in engagement with each other.

In a state where the four parts 8G formed in the opposite direction of the convex part 8a of the write protector 8 are shielding the window part 5a of the upper storage frame part 5, normal recording can be performed, and the light protector 8 has two branches. Recording cannot be performed when the leg portion 8b is placed on the side of the window portion 5a and the window portion 5a is open.

However, with such conventional disk cassettes,
When assembling the disk cassette, the lie 1 protector 8 is housed by engaging its bifurcated legs 8b with the protrusions 6b formed on the lower housing frame 6 of the lower case 3, so the lower case in this state Third, there was a problem in that the light protector 8 came off from the lower case 3 when the upper case 2 was mated or when the upper case 2 and the lower case 3 were ultrasonically welded.

[Object of the Invention] The present invention has been made to solve the problem of the conventional moving point, and is capable of effectively preventing the light protector from coming off with a simple 414 construction, and furthermore, it is possible to prevent the light protector from coming off.
The purpose of this project is to provide a diffuser cassette that can significantly improve assembly efficiency.

[Summary of the Invention] In order to achieve the above object, the present invention includes a case body consisting of a ten case and a lower case, which is provided with a light protector accommodating portion having a window in a corner, and a case body which is rotatably stored in the case body. In the disc caser i~, the disc caser i~ is equipped with a magnetic disk and a write protector for preventing accidental erasure, which is movably accommodated in the write 1~protector accommodating part of the case body and covers or opens the window part. Lie 1 to protector housing section and Lie 1 to [
By forming a slidable engagement portion that engages with each ticker, it is possible to effectively prevent the light protector from coming off with a simple structure, and it also improves the assembly efficiency of the disk cassette. This made it possible to significantly improve the

[Embodiments of the Invention] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 and 2 show the details of the write protector accommodating part and the protector of a disk cassette according to an embodiment of the present invention. In the figures, 11 is a case consisting of an upper case 12 and a lower case 13. Shows the main body. Corresponding corners of the upper case 12 and the lower case 13 (herein, an upper housing frame part 14 and a lower housing frame part 15 are formed, and the upper housing frame part 14 and the lower housing frame part 15 form a light protector housing part). 16 are formed.

A window 14a for detecting whether translation recording is possible is formed in the upper storage frame 14, and a guide hole 17 is formed in the lower storage frame 15. A tapered portion 17a is formed. Further, on both sides of the convex portion 190 formed on the light protector 18, tapered portions 19a are formed to engage with the tapered portions 17a of the guide holes 17 of the lower storage frame portion 15 described above.

When assembling the disk cassette in step (), taper portion 19a formed on convex portion 19 of write protector 18.
into the tapered part 17a of the guide hole 17 formed in the lower storage frame part 15 of the lower case 13, and roughly engage the bifurcated leg part 18a of the light protector 18 to a protrusion (not shown) of the lower case 13. The upper case 12 is then ultrasonically welded together.

In this embodiment, a tapered part 19a is formed in the convex part 19 of the light protector 18, and a tapered part 17a is formed in the guide hole 17 of the lower housing frame part 15 to engage them, so that the structure is simple. , it is possible to effectively prevent the light protector 18 from coming off. Furthermore, the efficiency of assembly into the diffuser cassette 1 can be greatly improved.

FIG. 3 and FIG. 4 show details of the write protector accommodating portion and the write protector of the disk protector i~ according to the embodiment of the present invention.

Note that the same parts as in FIG. 1 and FIG. 2 are given the same reference numerals, and the description thereof will be omitted. In this embodiment, convex portions 20 are formed on both sides of the side surfaces of the first to first tick marks 18, and convex portions 20 are formed on the side surfaces of the upper storage frame portion 11I of the upper case 12 in correspondence with the convex portions 20 of the light protector 18. A groove 21 is formed. Then, the convex portion 20 of the protector 1B is engaged with the lie 1 in this concave groove 21, and the light protector 1 is removed.
8 is accommodated in the upper housing frame portion 14 of the ten case 12, and the lower case 13 is assembled to the upper case 12 by ultrasonic welding.

In this embodiment, convex portions 20 are formed at both ends of the side surface of the light protector 18, and the upper housing frame portion 14 of the case 12 is
Since grooves 21 corresponding to the convex portions 20 are formed on the side surfaces of the light protector 18 to engage them, the light protector 18 can be effectively prevented from coming off with a simple structure, similar to the embodiment shown in FIG. This greatly improves the efficiency of assembling the disk cassette.

[Effects of the Invention] As explained above, the disk cassette of the present invention is capable of engaging and sliding in the light 1 to protector accommodating portions and the light protector of the case body, respectively. Therefore, it is possible to effectively prevent the light protector from coming off with a simple structure, and the efficiency of assembling the diffuser cassette 1 can be greatly improved.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the main parts of a disk cassette according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the assembled state shown in FIG. 1, and FIG.
4 is a sectional view of the assembled state of FIG. 3; FIG. 5 is a perspective view of a conventional disk cassette; and FIG. is the fifth
7 is a sectional view of the assembled state shown in FIG. 6, FIG. 8 is a plan view showing the lie l-protector, and FIG. 9 is a side view of FIG. 8. １１・・・・・・・・・・・・・・・Case body 12・・・・・・・・・・・・・・・Top case 1
3・・・・・・・・・・・・・・・Lower case 15
a・・・・・・・・・・・・Window part 16...
.........Light protector housing section 17... Guide holes 17a, 19a...Tapered section 18・・・・・・・・・・・・・・・・・・Light protector 20・・・・・・・・・・・・・・・Convex part 21・・・・・・・・・・・・・・・・・・Concave
Applicant: Toshiba Corporation Agent Ben Sokuto Suyama Sa - 2nd = Figure 3 Kayu 4 Figure 5 Figure 6

Claims (1)

[Claims] (1) A case body consisting of an upper case and a lower case and equipped with a light protector accommodating part having a window in the corner;
In this disk cassette, the magnetic disk is rotatably housed in a case body, and a write protector for preventing accidental erasure is movably housed in a write protector accommodating part of the case body and covers or opens the window part. 2. A disk cassette, characterized in that the light protector accommodating portion of the case body and the light protector are each formed with engaging portions that can engage and slide with each other.