JPS6231080A - Cartridge for optical disk - Google Patents

Abstract

PURPOSE:To always make clean the surface of a disk and the space in a cartridge by planting fibers on the inner surface of the cartridge. CONSTITUTION:Fibers 4 are planted vertically with respect to the inner surface 2b of a cartridge 2 on the inner surface 2. By mounting the cartridge 2 on a player, initially, dust sticking on the surface of an optical disk 1 is wiped out by the fibers 4. However, as the number of revolution of the disk is increased, an air flow of the direction shown by an arrow 5 is produced in the cartridge 2 and by air flow, the fibers are waved and separated from the surface of the disk. Accordingly, during a high speed rotation which may possibly make a flaw on the surface of the optical disk 1 by the friction of the fibers 4, the fibers 4 are separated from the surface of the disk and contact during a low speed rotation to clean the surface. Thereby, the inside of the cartridge 2 is constantly clean and the surface of the disk is also cleaned.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention relates to an optical disc cartridge, and more specifically, fibers are implanted inside the cartridge and "dust" etc. attached to the disc surface is removed using disc rotation. Regarding cartridges that can be used.

(b) Conventional technology Optical discs use light to extract information accumulated through unevenness on their surfaces as images and sounds, but since the medium to be extracted is light, erroneous signals and This resulted in incorrect information and became a major obstacle to the spread of optical discs.

Conventionally, this dust was wiped by hand using a special cloth or deerskin, but with cartridge types, the only exposed surface of the disc is the opening for reading information, making it time-consuming and difficult to wipe it completely. There was a problem that it could not be removed.

Furthermore, even a slight scratch on the surface of an optical disk causes an error as a signal, and there are problems that are extremely difficult to solve, such as the selection of dust wiping tools and the amount of force applied.

(c) Purpose of the Invention This invention was made in view of the above circumstances, and there is no need to take any special steps; simply installing a cartridge containing an optical disc into a player; The present invention provides an optical disc cartridge that can clean the disc surface.

(D) Structure of the Invention The present invention provides an optical disc cartridge which stores an optical disc therein, has an opening for reading information on at least one of the upper and lower surfaces, and is configured such that the opening can be opened and closed by a sliding door. This is an optical disc cartridge characterized in that the inner surface of the cartridge is flocked with fibers.

(e) Examples The present invention will be described below based on illustrated embodiments.

FIG. 1 is an explanatory cross-sectional view showing the outline of the structure of the cartridge of the present invention, FIG. 2 is an explanatory overall perspective view, FIG. 3 is an explanatory view of the action of fibers, and FIG. 4 is an explanatory view of the arrangement of flocked fibers.

In the figure, a cartridge (2) stores therein an optical disc (1) supported by a disc supporter (1a), and has an information reading opening (2a) on at least one of the upper and lower surfaces; The opening (2a) can be opened and closed by a sliding door (3) having a similar opening (3a).

Fibers (4) are flocked on the inner surface (2b) of the cartridge (2) in a direction perpendicular to the inner surface (2b) (see FIG. 1.2).

The length of the fiber (4) may be long enough to sweep the surface of the optical disc (1) with its tip. Since the optical disc cartridge of the present invention is constructed as described above, by installing the cartridge (2) in the player,
Initially, the fiber (4) wipes off the dust attached to the surface of the optical disc (1), but as the disc rotation speed increases,
An air flow occurs in the direction of the arrow (5) inside the cartridge (2), and the fibers (4) flutter and become disassembled due to this air flow.
move away from the surface.

Therefore, the fibers (4) separate from the disk surface during high-speed rotation when the surface of the optical disk (1) may be damaged by the friction of the fibers (4), and come into contact with and sweep away when the disk rotates at low speed.

Furthermore, dust entering through the opening (2a) and dust raised by the airflow also adheres to the fibers, so the inside of the cartridge (2) is always clean and the disk surface is clean, meaning that no signal due to dust can be detected. No errors occur.

The fibers used in this invention include feathers, natural fibers (
(cotton, silk, wool), thin synthetic fibers, etc., and feathers are preferably used.

Flocking the fibers can be done by attaching them directly to the inside of the cartridge with an adhesive, in addition to general flocking, or by planting the fibers on a sheet-like material and then pasting that sheet-like material on the inside of the cartridge. .

The fibers (4) may be planted uniformly over the entire inner surface of the cartridge, but it is sufficient as long as they can completely cover the information recording area (1b) of the optical disc (1). For example, as shown in FIG.
The rectangular fiber bundle (41) may be attached perpendicular to the disk rotation direction as shown in (a), or a part of the information recording area (1b) (A> only) as shown in Fig. 4 (b). You can also have hair transplanted.

(f) Effects of the Invention As explained above, this invention has fibers implanted on the inside of the cartridge so that the surface of the disk is swept only when the disk rotates at low speed, and the surface of the disk is not touched when it rotates at high speed. Therefore, the disk surface can be cleaned without damaging it, and since the fibers catch dust entering from the outside, it has the effect that not only the disk surface but also the space inside the cartridge can be kept clean at all times.

[Brief explanation of the drawing]

FIG. 1 is an explanatory cross-sectional view showing the outline of the structure of the cartridge of the present invention, FIG. 2 is an explanatory overall perspective view, FIG. 3 is an explanatory view of the action of fibers, and FIG. 4 is an explanatory view of the arrangement of flocked fibers. 1... Optical disc, 2... Cartridge, 3...
Door 4...I! Maintenance

Claims (1)

[Claims] In an optical disc cartridge that stores an optical disc inside, has an opening for reading information on at least one of the upper and lower surfaces, and is configured such that the opening can be opened and closed with a sliding door, fibers are implanted on the inner surface of the cartridge. An optical disc cartridge featuring: