JPS6254883A - Disc cartridge - Google Patents

Abstract

PURPOSE:To record and reproduce while removing dusts from the surface of a disc while it is rotating during by providing a cleaner part inside a head- inserting hole. CONSTITUTION:The disc cleaner part 7 is fixed on a case 1 and 2. As the disc 3 rotates in the cartridge, its surface is kept clean at all time by the said cleaner part 7. As a result, errors due to dusts can be prevented from occurring during recording/reproducing. The fixing and removing of the cleaner part 7 is made simple, therefore it can be replaced easily when it becomes too dirty.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a disk cartridge, and in particular, a brush, a brush, etc. are provided inside a head insertion hole formed in a cartridge case.
This relates to a disk cartridge made of non-woven fabric or resin with a certain degree of rigidity.

[Background of the invention]

It is desirable to use a high-density recording/reproducing disk such as an optical disk by storing it in a cartridge in order to protect its surface from scratches and dust.

However, this type of cartridge requires openings such as a head insertion hole for opposing the optical head to the disk surface during recording and playback, and a spindle insertion hole for rotating the disk, and is completely sealed. It is impossible to do so, and there is a possibility that foreign substances such as dust may enter the inside of the cartridge during a long period of use and adhere to the disk surface, causing errors during recording and reproduction. Incidentally, as this type of technology, for example, Japanese Patent Application Laid-Open No. 57-7152
There is Publication No. 8.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a cartridge that prevents the occurrence of errors due to dirt or the like entering the disc cartridge.

[Summary of the invention]

In order to achieve the above object, the cartridge according to the present invention is provided with a cleaning member made of a brush, non-woven fabric, resin having a certain degree of rigidity, etc., located inside the cartridge inner surface, particularly inside the head insertion hole. The present invention is characterized in that recording and reproduction can be performed while removing foreign matter adhering to the disk surface when the disk rotates.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

FIG. 1 is an exploded perspective view of a disk cartridge according to an embodiment of the present invention, in which a disk 3 is shown in upper and lower cases 1.
The case 1.2 has a head insertion hole 5 and a spindle insertion hole 6, and a shutter 4 is attached to keep these openings closed at all times. be. 7 indicates a disk cleaning member provided inside the case 1.2, particularly around the head insertion hole 50.

FIG. 2 shows a detailed cross section of the mounting portion of the disk cleaning member 7, and 11 is an optical head. In this example, the disk cleaning member 7 is fixed to the case 1.2, but as shown in FIG. 5, the disk cleaning tool 7 is fixed to the mounting bracket 8, and as shown in FIG. The recess 9 of the metal fitting 8 may be fitted into the protrusion 10 of the case 1.2. In this way, the disk cleaning member 7 can be easily attached and detached, so that when the disk cleaning member 7 becomes abnormally dirty, it can be easily removed and replaced or cleaned. Therefore, the fixed cartridge shown in Figure 2 is suitable for use in a clean environment such as a computer room, and the replaceable cartridge shown in Figures 3 and 4 is relatively clean. Suitable for poorly opened offices.In the above example, the disk cleaning members 7 were arranged in one row,
As shown in FIG. 5, brushes, nonwoven fabrics, resins having a certain degree of rigidity, etc. may be provided in multiple rows. Also,
If the cleaning member 7 is made of non-woven fabric or resin, it can be bent into a corrugated shape as shown in Fig. 6. Fig. 7 shows another embodiment of the present invention, in which the cleaning member 7 is made of non-woven fabric or resin. A configuration is shown in which a disk cleaning member 7 that contacts over a relatively large area is pressed against the disk surface.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, when the disk 3 rotates within the cartridge, the disk cleaning member 7
Since the surface of the disk 30 is always kept clean, it is possible to prevent errors caused by dust during recording and reproduction.

[Brief explanation of the drawing]

Figure 1: Schematic structural diagram of the disc cartridge Figure 2: Detailed sectional view of the installation of the disc cleaning tool Figure 5: Detailed sectional view when the disc cleaning tool can be removed Figure 4: The disc cleaning tool shown in Figure 3 Detailed cross-sectional view when installed Figure 5.6 Other application examples 1...Cartridge case 2...Cartridge case 3...Disk 4...Shutter 5...Head insertion hole 6...Spindle Insertion hole 7...Disc cleaning tool 8...Mounting bracket 9...Mounting bracket recess 10...Case protrusion 11...Recording/playback head I Section 1 2nd quality 3I21 Fig. 5 16 Sai 7 l Procedure moss n official book (method) September 24, 1939

Claims (1)

[Claims] A case including a head insertion hole and a spindle insertion hole;
In a disk cartridge comprising a disk-shaped recording medium rotatably housed inside the case, and a shutter for opening and closing the head insertion hole and the spindle insertion hole, the disk-shaped recording medium is located inside the head insertion hole. A disk cartridge characterized in that a cleaning member that contacts the surface of the medium is provided so that the surface of the recording medium is cleaned by the cleaning member when the recording medium rotates.