JPH0514369Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Summary] The clearance of the center hole of a cartridge is increased so that information recording media (hereinafter referred to as a disk) having the same diameter can be shared by a quick disk and a disk card stored in cartridges with different shapes. In addition, the cartridge has a structure in which a cut-off groove is formed so that the end of the cartridge can be freely separated, and the cartridge can be used as a disk card in its original shape, or as a quick card by separating the end of the cartridge from the cut-off groove. It has been made possible. [Industrial Application Field] The present invention relates to a general-purpose disk cartridge that can be used commonly for quick disks and disk cards. Although both the quick disk and the disk card use the same diameter disks, the cartridges that house the disks have different shapes, so they cannot be used in common between both devices. It is hoped that a disk cartridge that can be used in common will be developed. [Prior Art] Information media called quick disks and disk cards, which have cartridge shapes as shown in FIGS. 2 and 3 and can be used on both sides, have heretofore been used. The quick disk shown in FIG. 2 is often used as a media for OA equipment, and the disk card shown in FIG. 3 is often used as a media for family computers and the like. In addition, the required dimensions of the above-mentioned quick disk and disk card are compared in the table.

【table】

[Problem that the invention attempts to solve]

The above-mentioned conventional disk cartridges had a problem in that even though the disks housed inside were the same, the cartridges themselves had different external shapes and could not be shared between devices. . The present invention has been devised to solve the above-mentioned problems, and it is an object of the present invention to provide a general-purpose disk cartridge that can be used both as a quick disk and as a disk card. [Means for solving the problem] In order to absorb the structural inconvenience caused by the difference in external dimensions between the quick disk and the disk card,
In addition to increasing the clearance of the center hole provided in the cartridge, a cutting groove is provided to allow the end of the cartridge opposite to the deck insertion side to be freely brought into contact with and separated from it, and is shared by the above-mentioned quick disc and disc card. It has a cartridge structure that can be used. [Function] By increasing the clearance of the center hole provided in the cartridge, it is possible to prevent the deck from shifting due to the difference in distance between the front edge of the cartridge (deck insertion end) and the center of the disk between the quick disk and the disk card. It can accommodate displacement of the drive shaft, and by cutting off the end of the cartridge from the cutting groove, it can be used as a quick disk, which is smaller in size than a disk card. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1, in which the same parts as in FIGS. 2 and 3 are denoted by the same reference numerals. As mentioned above, the distance L ₂₁ from the front edge of the cartridge 1 (the deck insertion end side) to the center of the disk 2 housed in the cartridge 1 in the quick disk shown in FIG. 2 is 38.6 mm. On the other hand, the distance _L22 in the disk card shown in FIG. 3 is 40 mm, and the dimensional difference between the two is 1.4 mm. Therefore, in the present invention, the shape of the center hole 30 is made different from the conventional one, and the shape of the center hole 30 has enough clearance to absorb the above-mentioned 1.4 mm difference in size.
It is possible to cope with the displacement of the drive shaft of the deck due to the center movement of the disk 2. In other words, the shape of the center hole 30 has enough clearance to accommodate the displacement of the deck drive shaft when the center of the disk 2 moves by the above-mentioned dimensional difference (1.4 mm) in the deck insertion direction of the cartridge 1. I'm leaning on it. In addition, cutting grooves 10 formed in the form of V-shaped grooves are provided on both sides of the cartridge 1 to enable the end 11 of the cartridge 1 opposite to the end on the deck insertion side to be freely separated, and the form shown in FIG. 1 is maintained. When used, it can be used as a disk card, and by cutting off the end 11 of the cartridge 1 using the cutting groove 10, it can be used as a quick disk. Furthermore, if the thickness of the exterior finish of the cartridge 1 is around 4 mm, a positioning recess 12 for the quick disk can be provided in a position lined up with the positioning recess 9 for the disk card. It is possible to more stably insert the disk into the deck. [Effects of the invention] According to the invention described above, the cartridge structure is adopted to absorb the dimensional difference between the quick disc and the disc card due to the difference in external shape, so it can be used for both the quick disc and the disc card. At the same time, effects such as reduction in manufacturing costs can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram of a general-purpose disk cartridge showing an embodiment of the present invention, FIG. 2 is a structural diagram of a conventional quick disk, and FIG. 3 is a structural diagram of a conventional disk card. 1... Cartridge, 2... Disk, 10...
... Cutting groove, 11 ... End, 30 ... Center hole.

Claims (1)

[Claims for Utility Model Registration] A center hole 30 having a clearance sufficient to accommodate the displacement of the drive shaft of the disk 2 housed in the cartridge 1 due to center movement of the disk 2 in the deck insertion direction of the cartridge 1. and a cutting groove 10 that allows the end 11 of the cartridge 1 facing the deck insertion side to be freely separated, so that it can be used commonly for the same disk housed in two cartridges having different external shapes. A general-purpose disk cartridge that is characterized by: