JPH0210564Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a disk cleaner, and particularly to a disk cleaner for wiping the surface of an optical or grooveless capacitance type audio or video disk.

[Technical background of the invention and its problems]

In recent years, a digital recording and playback system has been developed, and so-called compact discs have become commercially available as software for this system.

This compact disc has an aluminum signal surface on which digital signals are recorded and is protected by covering it with transparent plastic.The compact disc player's laser reading device extracts and reproduces the digital signal as the intensity of reflected light from the laser. It is.

Since the signal surface of compact discs is protected with transparent plastic, it was initially thought that they would be unaffected by dirt and dust.

However, if the transparent plastic gets dirty with fingerprints or hand marks, the dirt changes the intensity of the light reflected by the laser, causing noise or missing playback sound.

Therefore, it is necessary to wipe off the dirt on the surface of the disc, but unlike normal analog audio discs, the surface of compact discs does not have sound grooves, but because the surface is covered with transparent plastic and is smooth, the circumference of the disc There is no need to wipe the dirt along the direction. Rather, pulse codes of 0 and 1 are engraved with high density in a spiral pattern around the circumference of the compact disc, which is read by a laser reader, and even if there are some signal errors, the context of the missing signals can be determined. Since the error is corrected based on the judgment from As a result, scratches occur in the transparent plastic, and the laser beam is diffusely reflected by the scratches, resulting in continuous signal dropouts, and because the dropouts are so long, it may become impossible to correct the error due to the context of the dropped signals.

In addition, in the case of an analog audio disc, the disc surface can be wiped by placing the disc on the turntable of an analog disc player, making cleaning work relatively easy. There are two types of disk supports: vertical and horizontal.In either case, they are unsuitable for wiping the disk surface, so generally, one hand holds the compact disk directly and the other hand holds it. I have to hold the cleaner and wipe the disk surface, and my other hand gets in the way, making it difficult to wipe.

[Purpose of invention]

The present invention has been devised in view of the above points, and it is an object of the present invention to provide a disk cleaner that makes it easy to wipe the disk surface and is less likely to cause scratches in the circumferential direction of the disk surface, that is, in the signal recording direction of the disk.

[Summary of the idea]

In order to achieve the above object, the disk cleaner of the present invention includes a pedestal on which the disk is placed, and a lid that can be opened and closed with respect to the pedestal, and the lid has an outer frame having a circular inner periphery. , a rotating body that is rotatably provided within the outer frame and has a circular outer periphery; a rotating shaft that is sandwiched between the inner periphery of the outer frame and the outer periphery of the rotating body; and a cleaning disk which has a cleaning surface on its lower surface and rotates while revolving around the rotating body as the rotating body rotates, and the annular cleaning surface of the cleaning disk which revolves while rotating on its own axis cleans the disk surface. The wiper wipes the disk in a manner that crosses the signal recording direction of the disk while moving in the circumferential direction.

[Example of idea]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Figure 1 shows a disk cleaner.
This disk cleaner includes a rectangular dish-shaped pedestal 1 and a rectangular lid 3 that is attached to the pedestal 1 via a hinge 2 provided on one side of the pedestal 1 so as to be openable and closable. There is.

As shown in FIGS. 2 and 4, the pedestal 1 has a circular recess 1 on its upper surface for placing and positioning a compact disk 11 as a disk.
2 is formed, and a circular mat 13 for receiving the data display surface of the compact disk 11 is laid within this recess 12. These circular recesses 12 and circular mats 13 are formed to have approximately the same diameter as the compact disk 11, and the circular mats 13 have a large friction so that the compact disk 11 does not slip and do not scratch the data display surface. Moreover, it is made of a soft material, such as rubber.

The lid body 3 includes an outer frame 22 having a circular inner circumferential edge 21, a rotating body 24 rotatably provided within the outer frame 22 and having a circular outer circumferential edge 23, an inner circumferential edge 21 of the outer frame 22, and a rotating body 24 having a circular outer circumferential edge 23. The rotating body 24 has a rotating shaft 25 sandwiched between the outer circumferential edge 23 of the rotating body 24 at the center of the upper surface, and an annular cleaning surface 26 on the lower surface. It is equipped with a circular cleaning disk 27 that rotates on its own axis.

The circular inner peripheral edge 21 of the outer frame 22 has a central axis that coincides with the circular recess 12 of the pedestal 1, and an annular fitting recess 31 along the inner peripheral edge 21 is provided at the upper part.
is formed, and this inner peripheral edge 2 is formed at the bottom.
An inner peripheral gear 32 is formed along 1.

The rotating body 24 has a central axis of a circular outer circumferential edge 23, which is the center of rotation, which coincides with a central axis of the circular recess 12 of the pedestal 1 and a circular inner circumferential edge 21 of the outer frame 22. The diameter of the upper part of the peripheral edge 23 is formed to be approximately the same as the diameter of the upper part of the inner peripheral edge 21 of the outer frame 22, and a fitting recess 31 is formed in the upper part of the inner peripheral edge 21 of the outer frame 22. An annular fitting convex portion 33 that is slidably fitted inside the outer peripheral edge 23
It is formed along the Further, the lower part of the outer peripheral edge 23 is formed to have a smaller diameter than the lower part of the inner peripheral edge 21 in order to form a certain gap between the lower part of the inner peripheral edge 21 of the outer frame 22 and the lower part of the inner peripheral edge 21 of the outer frame 22. An outer gear 34 having the same shape as the inner gear 32 formed at the lower part of the inner peripheral edge 21 of the outer frame 22
is formed. Further, an outer circumferential gear 34 is provided at the lower end of the outer circumferential edge 23 below the outer circumferential gear 34.
An annular protrusion 35 is formed with a diameter slightly larger than that of the portion. A circular recess 36 is formed on the upper surface of the rotating body 24, and a knob 38 whose base is supported by a shaft 37 so as to be movable up and down is provided at one corner of the recess 36. In addition, the outer frame 22
The diameter of the inner circumferential edge 21 of the compact disk 1 and the diameter of the outer circumferential edge 23 of the rotating body 24 is such that the gap formed between them is the diameter of the compact disk 1 placed in the circular recess 12 of the pedestal 1.
It is set to be located approximately at the center of the signal recording band No. 1.

The cleaning board 27 includes a disc-shaped cleaning board main body 41, the rotating shaft 25 protruding from the center of the top surface of the cleaning board main body 41, and a circular cleaning body 42 attached to the bottom surface of the cleaning board main body 41. have. and,
The rotating shaft 25 is inserted into a gap between the inner circumferential edge 21 of the outer frame 22 and the outer circumferential edge 23 of the rotating body 24 and is held therebetween, and has a gear 43 on its outer circumference that meshes with the inner circumferential gear 32 and the outer circumferential gear 34. It is designed to revolve around the rotating body 24 while rotating along with the rotation of the rotating body 24. Further, the cleaning body 42 has a circular cleaner recess 44 at the center of the lower surface, so that the lower surface has an annular cleaning surface 2.
It is set at 6. This cleaning body 42
is made of sheepskin etc.

Next, the operation of this embodiment will be explained.

First, the lid 3 is opened and the compact disc 11 with a dirty surface is placed on the circular mat 13 in the recess 12 of the pedestal 1 with the signal recording side facing up.

Next, close the lid 3, hold the disk cleaner with your left hand, and use your right hand to raise the knob 38 on the top surface of the rotating body 24 of the lid 3 to rotate the rotating body 24 clockwise. Then, the cleaning plate 27 held between the inner circumferential edge 21 of the outer frame 22 and the outer circumferential edge 23 of the rotating body 24
The rotational force of the rotating body 24 is transmitted to the rotating shaft 25 through the inner gear 32, the outer gear 34, and the gear 43 of the rotating shaft 25, and the rotating shaft 25 rotates around the rotating body 24 together with the cleaning plate 27 in the right direction. It rotates while orbiting.

Therefore, as shown in FIG. 4, while the cleaning disk 27 revolves in the circumferential direction along the signal recording surface of the compact disk 11, its rotation causes the annular cleaning surface 26 of the cleaning body 42 on the lower surface to rotate. The surface of the compact disk 11 made of transparent plastic is wiped in the signal recording direction, that is, in the direction intersecting the circumferential direction. At this time, since the cleaning surface 26 is formed in an annular shape, its center does not wipe the surface of the compact disc 11. This is because if the surface of the compact disk 11 is wiped at the center of the cleaning surface 26, which has a small radius of rotation, it is likely to be scratched in the circumferential direction.

Note that the rotational force of the rotating body 24 is transmitted to the rotating shaft 25 via the inner gear 32, the outer gear 34, and the gear 43 of the rotating shaft 25.
2, 34, and 43, at least the outer periphery of the rotating shaft 25 may be covered with rubber to form a friction wheel that revolves and rotates.

Furthermore, since the rotating body 24 has a fitting convex portion 33 on the outer circumferential edge 23 slidably fitted into a fitting recess 31 on the inner circumferential edge 21 of the outer frame 22, the rotation thereof does not deviate vertically or horizontally. There is no. Further, the rotating body 24 may be rotated by a motor or the like instead of manually.

In addition, in the above embodiment, the compact disk 11
Although we have described a disk cleaner that wipes the disk, this invention can wipe any disk without grooves, for example, it can also be used for optical laser disks or capacitive VHD disks without grooves. Can be done.

Further, the cleaning surface 26 is connected to a cleaning body 4 attached to the lower surface of the cleaning board main body 41.
The cleaning body 4 is formed into an annular shape by forming a cleaner recess 44 in the center of the lower surface of the cleaning body 4.
2 itself may be formed into a ring shape.

[Effect of idea]

According to the present invention, since the disk can be wiped not only in the circumferential direction but also in a direction crossing the circumferential direction, the total area that can be wiped per unit time is large, and the cleaning effect is large and the work is easy. Can be done quickly.

In addition, due to the rotation of the cleaning board, the
That is, since the cleaning surface can be wiped from a direction crossing the signal recording direction and the cleaning surface is annular, continuous long scratches are not made on the disk surface along the signal recording direction, and no signal loss occurs.

Furthermore, the disk is sandwiched between the pedestal and the lid, making cleaning easier as there is no need to hold it directly in your hand and wipe it. Dust will not adhere to the disk due to static electricity from nearby areas.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the disk cleaner of the present invention, Fig. 2 is a partial vertical sectional view thereof, and Fig.
The figure is a longitudinal cross-sectional view showing the rotating shaft of the cleaning plate held between the inner circumferential edge of the outer frame and the outer circumferential edge of the rotating body.
The figure is a plan view showing a cleaning disk that rotates on its own axis while revolving on a disk. 1... pedestal, 3... lid body, 11... disk,
21... Inner peripheral edge, 22... Outer frame, 23... Outer peripheral edge, 24... Rotating body, 25... Rotating shaft, 26...
Annular cleaning, 27...cleaning board.

Claims (1)

[Scope of Claim for Utility Model Registration] It comprises a pedestal on which a disk is placed, and a lid that can be opened and closed with respect to the pedestal, and the lid has an outer frame having a circular inner periphery and a portion inside the outer frame. A rotary body that is rotatably provided in the housing and has a circular outer circumferential edge, a rotating shaft that is sandwiched between the inner circumferential edge of the outer frame and the outer circumferential edge of the rotary body at the center of the upper surface, and an annular cleaning surface on the lower surface. A disk cleaner comprising: a cleaning plate that rotates on its own axis while revolving around the rotating body as the rotating body rotates.