JPH0810892Y2 - Disk cartridge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a disk cartridge, and more specifically, when a cartridge body is assembled, a part of the liner (peripheral end edge, etc.) is frayed, and the liner scraps and dust from the liner. The present invention relates to a disk cartridge that is free from the problems such as the above.

[Conventional technology]

Traditional disc cartridge, eg 2 inch or 3.
The 5-inch disk cartridge accommodates a disk rotatably, has an upper shell and a lower shell joined to each other at their outer peripheral portions, and has the magnetic disk by the liners provided on the inner surfaces of the upper shell and the lower shell, respectively. It is designed to be sandwiched between and cleaned.

Here, in the cartridge body, the upper shell and the lower shell are joined and integrated by an ultrasonic welding method.

[Problems to be solved by the device]

However, in the disc cartridge, the upper shell and the lower shell are joined and integrated by ultrasonic welding, so that vibration occurs in the upper shell and the lower shell at the time of joining, and the vibration causes the upper vibration to occur. It may be transmitted to the liner provided on the inner surface of the shell and the liner provided on the inner surface of the lower shell, and some of the liner (outer peripheral edge, etc.) may be frayed, and liner scraps, dust, etc. may be generated from the liner. The liner waste remains in the cartridge body and adheres to the magnetic disk, causing an error.

Therefore, an object of the present invention is to provide a disc cartridge in which a part of the liner is not frayed during the assembly of the cartridge body to generate liner scraps from the liner, and an error is not generated from the liner scraps. To do.

[Means for solving the problem]

The present invention relates to a disc cartridge in which a disc 4 is rotatably accommodated and an upper shell 2 and a lower shell 3 are joined at their outer peripheral portions. In the outer cartridge 2a of the upper shell 2 and the outer peripheral portion 3a of the lower shell 3, The mounting holes 2b and 3b are provided at the respective required positions of the connecting hole 7b and the connecting tool 7 is attached to the mounting hole 2b or 3b.
The mounting hole in which the connector 7 is not inserted and the connector 7 is not inserted
The upper shell 2 and the lower shell 3 are joined to each other by fitting and inserting the connected tool 8 into 2b or 3b, and connecting the connecting tool 7 and the connected tool 8 to each other. A head portion 7a that is locked in the mounting hole 2b or 3b, and a connecting shaft portion 7b that is integrally provided on the head portion 7a. It is configured by providing an engaging groove 7c over the circumference, and the connected tool 8 is provided integrally with the head 8a and the head 8a that is engaged with the mounting hole 2b or 3b. The connecting cylinder portion 8b into which the shaft portion 7b is fitted is provided, and the engaging ridge 8c that engages with the engaging groove 7c is provided on the inner peripheral surface of the connecting cylinder portion 8b at the axially intermediate position over the entire circumference thereof. The above object is achieved by providing a disk cartridge characterized by being configured as follows.

[Action]

According to the disc cartridge of the present invention, a connecting tool or a connected tool is provided at each of the required locations on the outer peripheral portion of the upper shell and the outer peripheral portion of the lower shell, and the connecting tool and the connected tool are connected to each other, Since the upper shell and the lower shell are joined, vibration does not occur as in the case of joining by ultrasonic welding, and a part of the liner (outer peripheral edge, etc.) is frayed due to the vibration, and liner dust, dust, etc. from the liner Is not generated, and there is no possibility that an error will occur due to the liner scraps and the like.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of the present invention.
FIG. 1 is a perspective view of the entire disc cartridge, FIG. 2 is a partially enlarged cross-sectional view of an essential part, and FIG. 3 is an exploded enlarged perspective view showing a connecting tool and a connected tool partially cut away.

The disk cartridge (3.5-inch magnetic disk cartridge) of this embodiment has an upper shell 2 and a lower shell 3.
The magnetic disk 4 is rotatably housed in the cartridge body 1 made of, and the magnetic disk 4 is cleaned by the liners 5 and 6 provided on the inner surfaces of the upper shell 2 and the lower shell 3, respectively. .

Stepped mounting holes 2b and 3b are respectively provided at required locations on the outer peripheral portion 2a of the upper shell 2 and the outer peripheral portion 3a of the lower shell 3 (on the left and right sides of the upper edge and on the left and right sides of the lower edge in FIG. 1). It is provided so as to penetrate in the thickness direction. And the upper shell 2
Insert the connecting pin 7 as a connecting tool into the mounting hole 2b on the side,
Further, a connected pin 8 as a connected tool is fitted and inserted in the mounting hole 3b on the lower shell 3 side. The cartridge body 1
By connecting the connecting pin 7 and the connected pin 8 and joining the upper shell 2 and the lower shell 3 to each other,
It is assembled.

The connecting pin 7, as shown in FIG. 2 and FIG.
A disk-shaped head 7a that locks to the step 2b ₁ of the mounting hole 2b,
The connecting shaft portion 7b is provided integrally with the head portion 7a and protrudes from the mounting hole 2b to the back surface side of the upper shell 2, and the connecting shaft portion 7b has an outer periphery near the lower end over the entire circumference. An engaging groove 7c is provided and configured. In addition, the connected pin 8
Also, as shown in FIG. 2 and FIG.
A disk-shaped head portion 8a to be engaged with the stepped portion 3b ₁ of 3b, provided integrally with the head portion 8a, linking tube for the connecting shaft portion 7b is fitted
8b, and an engaging protrusion that engages with the engaging groove 7c on the inner peripheral surface of the connecting cylinder portion 8 at an axially intermediate position over the entire circumference thereof.
It is configured with 8c.

In the disk cartridge of this embodiment configured as described above, the connecting pin 7 is fitted in the mounting hole 2b in advance, and the connected pin 8 is fitted in the mounting hole 3b, or the upper shell 2 and When the lower shell 3 and the lower shell 3 are overlapped with each other, the connecting pin 7 is fitted into the mounting hole 2b, the connected pin 8 is fitted into the mounting hole 3b, and the connecting shaft portion 7b of the connecting pin 7 is connected to the connected pin 8. By being pushed into the cylindrical portion 8b, the engaging groove 7c and the engaging ridge 8c
Are engaged with each other to connect the connecting pin 7 and the connected pin 8,
As a result, the upper shell 2 and the lower shell 3 are joined together to assemble the cartridge main body 1. Therefore, ultrasonic welding need not be performed, and the liners 5, 6 can be shaken by the ultrasonic welding.
There is no possibility that a part of the edge (outer peripheral edge, etc.) will be frayed, and liner scraps, dust, etc. will be generated from the liners 5, 6, and the liner scraps, etc. will adhere to the magnetic disk 4 and cause an error such as dropout. There is no.

Further, the upper shell 2 is pressed toward the lower shell 3 by the head 7a of the connecting pin 7, and the lower shell 3 is moved to the head of the connected pin 8.
Since the upper shell 2 and the lower shell 3 are joined to each other while being pressed to the upper shell 2 side by the 8a, there is no possibility of forming a gap between the upper shell 2 and the lower shell 3.

Furthermore, since the connecting pin 7 and the connected pin 8 are used for joining, the connecting pin 7 and the connected pin 8 are damaged even after the upper shell 2 and the lower shell 3 are once joined. The upper shell 2 and the lower shell 3 can be disassembled with only
It is not necessary to damage the upper shell 2 and the lower shell 3 themselves as in the case of welding the upper shell 2 and the lower shell 3 by ultrasonic welding.

Furthermore, it is possible to reduce production costs without installing special equipment.

The disc cartridge of the present invention is not limited to the one shown in the above embodiment, and for example, a connecting pin 7 or a connected pin 8 having a hexagonal head may be used, and the upper shell 2,
The connecting pin 7 and the connected pin 8 may be integrally provided in the upper shell 2 and the lower shell 3 without providing the mounting holes 2b and 3b in the lower shell 3, and the connecting pin 7 and the connected pin 7 may be further connected to the upper shell 2. Pin 8
May be attached, and the connected pins 8 and the connecting pins 7 may be attached to the corresponding positions of the lower shell 3. The point is that the connecting tool or the connecting pin is attached to each of the required portions of the outer peripheral portion of the upper shell 2 and the outer peripheral portion of the lower shell 3. It suffices that the upper shell 2 and the lower shell 3 be joined by providing a connecting tool and connecting the connecting tool and the connected tool.

Further, the present invention is not limited to the 3.5-inch disk cartridge shown in the above embodiment, but can be widely applied to a 2-inch disk cartridge and the like.

[Effect of device]

In the disk cartridge of the present invention, there is no risk that a part of the liner will be frayed when the cartridge body is assembled, and liner scraps, dust, etc. will not be generated from the liner, and no error will occur due to the liner scraps.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a perspective view of the entire disc cartridge, FIG. 2 is a partially enlarged cross-sectional view of a main portion, and FIG. It is a disassembled expansion perspective view which notched and showed a one part connection tool. 1; Cartridge body 2; Upper shell 3; Lower shell 2b, 3b; Mounting hole 4; Magnetic disks 5, 6; Liner 7; Connecting tool (connecting pin) 8; Connected tool (connected pin)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-33383 (JP, A) Actually open 61-145384 (JP, U) Actually open 2-11573 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A disc cartridge in which a disc 4 is rotatably accommodated and an upper shell 2 and a lower shell 3 are joined at their outer peripheral portions, wherein an outer peripheral portion 2a of the upper shell 2 and an outer peripheral portion of the lower shell 3 are provided.
Provide mounting holes 2b and 3b at the required locations of 3a,
The connector 7 is fitted into the mounting hole 2b or 3b, and the connector 7
The upper shell 2 and the lower shell 3 are joined to each other by inserting and connecting the connected tool 8 into the mounting hole 2b or 3b on which one is not inserted, and connecting the connecting tool 7 and the connected tool 8 to each other. The connecting tool 7 is a head that is locked in the mounting hole 2b or 3b.
7a and a connecting shaft portion 7b integrally provided on the head portion 7a, and an engaging groove 7c is provided all around the outer periphery of the connecting shaft portion 7b near the lower end, The connected tool 8 is provided integrally with the head 8a and the head 8a which is engaged with the mounting hole 2b or 3b, and the connecting shaft 7b is provided.
And the engaging groove 7c on the inner circumferential surface of the axial direction intermediate position of the connecting tubular portion 8b over the entire circumference thereof.
A disc cartridge characterized by being provided with an engaging ridge 8c for engaging with.