JPS61233483A - Disc cartridge - Google Patents

Abstract

PURPOSE:To automate assembling of a spring by providing a tentative lock part locking tentatively an end of a spring locked by a shutter to a spring storage part of a case to perform the assembling of the spring as the combination of simple operations. CONSTITUTION:A linear is stuck to upper and lower shells 4, 5, the spring 3 is fitted and the edge of the spring 3 is fitted tentatively to a lock groove 8 and a tentative lock part 10. Then the upper shell 4 and the lower shell 5 are overlapped while clipping a disc, they are welded to form the case 1 and the shutter 2 is fitted. Then the shutter 2 is moved to the spring 3 fitted tentatively and the end of the spring 3 is locked to a locking claw 9 of the shutter 2. In this state, the end of the spring 3 latched to the locking claw 9 is pushed down to the lower shell 5 to override the tentative locking part 10 and the shutter 3 is detached, then one end of the spring 3 is locked to the locking claw 9 of the shutter 2, the shutter 2 is moved in a direction to close the heat slot 6 of the case 1 by the energyzing force of the spring 3 to complete the assembling of the cartridge.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a disk cartridge such as a portable disk containing a magnetic disk or the like serving as a recording medium.

``Prior Art'' Conventionally, there is a disk cartridge (hereinafter abbreviated as a cartridge) shown in Figures D to L5.This cartridge consists of a case 1 and a sliding shutter (hereinafter abbreviated as a shutter). ) 2 and a spring 3. Case l consists of an upper shell 4 and a lower shell 5 as shown in Figure 84. Case l
The upper and lower shells 4.5 contain a circular recess [4a*Sa] formed in the center thereof to form a space for accommodating the disc. Further, a head slot 6.6 is provided on the front edge side (upper side in FIG. 6) of each shell 4, 5 so as to penetrate through the circular four parts 4a, 5a. Furthermore, each shell 4.
Spring accommodation portion forming portions 4b, 5b are formed at one corner of the front end edge of the spring 5, that is, on the outside of the four circular portions 4a, 5a. These spring accommodating portion forming portions 4b and 5b are
When shells 4.5 are combined to form case l,
The shutter 2 forming the spring housing portion 7 opens and closes the head slot 6.6 of the case l.
The upper and lower shells are formed in a cross-sectional shape so as to sandwich the upper and lower shells. This shutter 2 is configured to slide along the front edge of the case l. As shown in FIG. 7, this shutter 2 is biased by a spring 3 in the direction of closing the head slot 6.6 of the case l. A torsion spring is used as the spring 3. The spring 3 is housed in a spring accommodating portion 7 of the case I, and one end of the spring 3 is locked in a locking groove 8 formed on the front edge side of the upper shell 4. Also, spring 3
The other end is attached to the front surface 2a of the shutter 2 and the next image stopper 9.
It is locked down.

To assemble a disk cartridge with such a configuration, first attach the liner (not shown) to the upper shell 4 and lower shell 5KV4, and then place the disk etc. in the circular recess @4a*5a. Upper/Lower Sheet/L/
4.5 are combined and welded to form case l. Next, the shutter 2 is fitted to the front edge of the case 1, and then the spring 3 is connected to the locking claw 9 of the shutter 2 and the case 1.
The conventional method was to store the spring in the spring accommodating portion 7 while locking it in the locking groove 8 of the spring.

``Conventional problems'' With such conventional disk cartridges,
At the time of assembly, there was a problem in that the assembly of the spring 30 required skillful manual labor. That is, in the conventional disk cartridge, as shown in FIG. At this time, since the spring 3 must be deformed and its end portions locked in the engagement groove 8 of the case 1 and the engagement claw 9 of the shutter 2, delicate movements are required to assemble the spring 30.

For this reason, it was difficult to automate the assembly of the spring 30, and the assembly of the spring 30 had to be done manually. Well,
The problem was solved by providing a temporary locking part in the spring accommodating part of the case, which temporarily locks the end of one spring that is locked to the shutter.

``Function'' For disk cartridges with this type of configuration,
Store the spring in the spring accommodating part of the case with one end of the spring temporarily locked in the temporary locking part, then remove one end of the spring from the temporary locking part and insert it into the locking claw of the shutter. By locking the spring, the spring can be easily installed.

``Embodiment'' The disk and cartridge of the present invention will be explained in detail below with reference to the embodiment shown in FIG. Incidentally, in the embodiment, the same reference numerals are not given to the parts having the same configuration as the conventional example.The explanation is simplified. ◎ Figures 1F14 to 3 show the first embodiment of the disk cartridge of the present invention. It is. In this cartridge, there is a temporary locking portion lO on the upper shell 4 of the case l.
is provided.

This temporary locking glO is L-shaped and is provided from the plate surface 4C of the upper shell 4 toward the lower shell 5. This temporary locking portion 10 is provided to temporarily lock one end of the spring 3, and is provided so as to face the locking groove 8 in which the other end of the spring 3 is locked. This temporary locking part 10 is
The middle shell in FIG. 2 is also provided in the center (toward the left in FIG. 2) of the position of the locking pawl 9 when the shutter 2 is moved to the right. In addition, this temporary locking portion lO is formed so that the locking claw 9 of the shutter 2 can pass through it, as shown in Fig. 11g2.
It is formed at a height so that the locking pawl 9 does not come into contact with it. Furthermore, this temporary locking part 10 is placed at a position further back than the position where the front surface 2a of the shutter 2 moves so that the shutter 2 does not collide with the end gK of the spring 3 that is locked in the temporary locking part 10. In this example, since the front surface 2a of the shutter 2 moves along the front surface 1a of the case 1, the temporary locking!l5IQ is provided on the front surface of the case 1 as shown in FIG. It is provided slightly further back than the front edge 4d of the upper shell 4, which has a length of 1 m.

Next, the procedure for assembling the cartridge of this embodiment will be explained.

First, liners and the like are attached to the upper and lower shells 4 and 5 as in the conventional case. Next, the spring 3 is attached to the upper shell 4. At this point, the end of the spring 3 is temporarily fixed to the locking groove 8 and the temporary locking portion IO.

Next, the upper shell 4 and the lower shell 5 are brought together while sandwiching the disk or the like, and then melted to form the case 1.

Next, fit the shutter 2 into the case 1 <t
Refer to figure ai 1° Next, move the spring 3fiil which is temporarily attached to the shutter 2. Then, temporary locking f%I
The end of the spring 3 that is locked to Q is connected to the shutter 2
It hangs on the locking claw 9 of the.

In this state, push down the lower shell 5tmK so that the end of the spring 3 hanging on the locking pawl 9 goes beyond the temporary locking part 10, and then close the shutter 3. Then, one end of the spring 3 is locked to the locking pawl 9 of the shutter 2, and the shutter 2 is moved by the urging force of the spring 3 to the head slit 6 of the case l.
is moved in the direction of closing. This completes the assembly of the cartridge.

FIG. 4I shows a second embodiment of the car/injector of the present invention. In the cartridge of this example, a spring insertion notch 11 is formed in the lower shell 5. This notch 11 is formed larger than the spring 3 in a small compressed state. Further, this notch 11 is formed at 5 so as to communicate between the spring housing @7 of the case 1 and the outside.

In the cartridge of this example, the upper and lower shells 4, 5
After welding and assembling the case l, the spring 3 is inserted into the spring housing f%7 from the notch t11. At this point, the end of the spring 3 is locked into the locking groove 8 of the case 1 and the locking claw 9 of the shutter 2. In the first embodiment, the temporary locking glo may be provided on the lower shell 5.

In this case, the spring 30 is installed in the upper and lower shells 4.
5 to assemble the case 1.

"Effects of the Invention" In the disc cartridge of the present invention, the spring receptacle 94 of the case has a temporary locking portion in which the end of one spring that is locked to the sliding shutter is temporarily locked. Since the spring is temporarily locked in the case, one end of the spring can then be moved from the temporary locking part to the locking part of the sliding shutter.
Therefore, the cartridge can be assembled. Therefore,
In the cartridge of the present invention, the spring can be installed by a simple combination of operations, and as a result, the spring can be installed easily and it is also possible to automate the installation.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the main parts of the first embodiment of the disk cartridge of the present invention, Fig. 2 is a plan view showing the upper shell and lower shell of the same embodiment, and Fig. 3 is a plan view showing the upper shell and lower shell of the same embodiment. Fig. 1 is a perspective view showing the second embodiment of the disk cartridge, *! Figure r is a front view showing a conventional example of a disk cartridge, Figure 84 is a plan view showing the upper shell and lower shell of the conventional example, and Figure 7 is a vI! of the conventional example. FIG. l・0...e case, 2...sliding shutter (
Shutter J, 3...Spring, 6...
・・Head thrower F17・・・Spring housing product, 8・・・Latching groove, 9・・・・・Latching claw, l
O...Temporary locking part.

Claims (1)

[Claims] A case that houses a disk serving as a recording medium and is provided with a head slot, and a head slot of this case.
A sliding shutter is provided to be slidable along the edge of the case to open and close the slot, and a spring accommodating portion formed in a corner of the case houses a sliding shutter that is installed in each of the case and the sliding shutter. a disk having a spring that is engaged and biases a sliding shutter toward closing the head slot of the case;
A disc cartridge in which a temporary locking portion is provided in the spring housing portion of the case to temporarily lock an end of one spring that is locked to the sliding shutter.