JPS615486A - Disk cartridge - Google Patents

Abstract

PURPOSE:To give exactly a lot number, etc., by providing stages which can fit to each other at the side of a cartridge which can be divided into two vertical parts and contains a rotatable disk-like recording medium. CONSTITUTION:Stages which can fit in and out each other are provided at sides of cartridges 1 and 2 which can be divided into two vertical parts, while a rotatable disk-like recording medium (magnetic disk) 3 is contained in the cartridges 1 and 2. Namely, a stamp area 19 is a wall for projecting the side of the cartridge 1 and higher than other parts. Moreover, a recessed part 20 is provided at the side of the cartridge 2 and is of shape where the projected shape of the stamp area 19 is fitted in. Thus the stamp area 19 can be constituted into one face, and the exact numbering of lots is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a disk cartridge using a magnetic recording disk for recording and reproducing information.

Conventional configurations and their problems In recent years, there has been a remarkable development in magnetic mezzo and magnetic recording equipment.In particular, recently, 70-tuppy disks for magnetic recording have been housed in hard case cartridges to make them easier to use. This number is increasing and is expected to increase in the future.

The above-mentioned disk cartridge will be explained below with reference to the drawings.

Figure 1 shows a conventional example, 1 and 2 are cartridges, 3 is a magnetic disk, 4 is a hub, 6 and 6 are openings, and 7 and si
j: center hole, 9 is a shutter plate, 10 is a slider, 11 is a spring, 12 is a slider groove, 13 is a slider knob, 14 is a spring insertion, and 16 is a spring hanging boss. The magnetic disk 3 has a hub 4 attached to its center, is rotatably held and housed in a cartridge 1.2, and is made of a flexible material. A head (not shown) for recording and reproducing information is inserted into the magnetic disk 3 through the opening 5.6 and brought into contact with the magnetic disk. The magnetic disk 3 is rotated when the hub 4 is fitted into an external driver device (not shown). A shutter plate 9 is attached to the openings 5 and 6 so as to cover the magnetic disk 3 from dust and dirt when not in use. A shutter plate 9 is similarly attached to the cartridge 1 side, although it is not shown since it is on the back side. The shutter plate 9 is attached around the center hole 8 and rotated along the center hole as shown by an arrow 16. The tip of the shutter plate 9 is engaged with the tip of the slider 1o, and the slider 10 is made of a flexible material, and is inserted around the magnetic disk 3 along nine slider grooves 12 provided in the longitudinal direction. Can be slid. When the slider 10 reaches the position of the tip 17 of the slider groove 12, the shutter plate 9 completely covers the opening 6.

In the slider 1o, one end of a spring 11 fits into a spring fold 14, and the other end fits into a spring hook 16, thereby urging the slider 1'0 with a force in the direction of an arrow 18. When the cartridge 1.2 is inserted into an external driver device, the slider knob 13 is hooked to open the actual opening shutter plate 9, which is opened by the biasing force of the spring 11 when it is almost used. It is closed by.

Cartridges 1 and 2 configured in this manner are stamped with a secret number, production lot number, etc. when they are produced.The stamp is placed on the side surface, which is not very noticeable from the outside, but cartridge 1 The label area 1b is not suitable for stamping because the label is pasted over the side surface 1C of the cartridge 1. still,
Slider 1o slides on both sides and Dryno (
- (not shown) is not suitable as it serves as a guide. Therefore, the suitable surface is the side surface 1a opposite to the label area 1b, and the 21L section, but as shown in Fig. 2, when mass production is carried out, the cartridge 1 and the cartridge 202 are separated. The part is misaligned due to the draft angle of the mold or manufacturing variations, and the 1u11 side 11L
, 2a are not on the same side, so even if a stamp is stamped, only half of the characters are visible, making it impossible to distinguish the lot number, which has become a major problem in mass production.

purpose of invention
6 In view of the above-mentioned drawbacks, it is an object of the present invention to enable accurate assignment of lot numbers, etc.

Structure of the Invention In order to achieve this object, the present invention provides a cartridge which is divided into upper and lower halves, with stepped portions that can be fitted into each other on the side surfaces of the cartridge.

DESCRIPTION OF THE EMBODIMENT FIGS. 3 and 4 show an embodiment of the present invention, in which 1 and 2 are cartridges, 3 is a magnetic disk, 4 is a knob, 5 and 6 are openings, 7, 8 is a center hole, 9 is a shutter plate, 1o is a slider, 11 is a spring, 12 is a slider groove, 13 is a slider knob, 14 is a hook, and 16 is a hook boss. The above configuration is the same as the configuration shown in FIG.

Furthermore, 19 is a stamp area, and 20 is a recessed portion.

This stamp area 19 is a wall projecting convexly from the side surface of the cartridge 1, and is higher than other parts. ,
Further, the recess 2o is provided on the side surface of the cartridge 2 and has a shape into which the convex shape of the stamp area 19 fits.6 FIG. 4 shows its cross-sectional state. Since it can form one surface, even if the concave part 2
Even if there is a deviation from 0, the stamp can be stamped without any problem.

Effects of the Invention As described above, according to the present invention, it is possible to stamp a clear lot number on the side surface of a disk cartridge, which is generally very thin. This makes mass production possible, and its practical effects are significant.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a conventional disk cartridge, FIG. 2 is a sectional view of its main parts, FIG. 3 is an exploded perspective view of a disk cartridge according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view of its main parts. FIG. 1.2...Cartridge, 3...Magnetic disk, 19...Pa stamp area, 20...
...concavity.

Claims (1)

[Claims] 1. A disk cartridge that houses a rotatable disk-shaped recording medium and is divided into upper and lower halves, and has stepped portions that can be fitted into each other on the side surfaces of the cartridge.