JP2556284Y2 - Cleaning device for information recording disk - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for cleaning a compact disk or the like with a cleaning liquid, and more particularly, to cleaning the entire surface of the disk by rotating the disk by vibration and sequentially immersing the disk in the cleaning liquid. The present invention relates to an information recording disk cleaning device.

[0002]

2. Description of the Related Art Information recording discs such as compact discs and laser discs record audio, video, character, and numerical information on the disc surface or surface layer, and read and reproduce the recorded information as appropriate. is there.
Therefore, if the surface is dirty or scratched, the reproduction of information becomes uncertain and a reading error may occur.
When a reading error occurs in this way, noise or image distortion may occur, or character or numeric information may be completely unreadable, or an incorrect character or number may be read, which is not useful as information. It can happen.

Therefore, when the surface of the information recording disk becomes dirty, it is necessary to clean it. As a cleaning method, a so-called primitive method of wiping with a cloth soaked with a cleaning liquid is generally widely used, but an ultrasonic cleaning device is also provided as a device for more reliably removing dirt. This ultrasonic cleaning apparatus is for immersing an information recording disk in a cleaning liquid to apply ultrasonic vibration to the cleaning liquid and cleaning the disk surface by the vibration energy.

[0004]

However, in the ultrasonic cleaning apparatus, since the disk is stored in a plane and the cleaning is performed, a laser disk as large as 30 cm can be cleaned. Then, there is a disadvantage that the floor area occupied by the apparatus becomes large, and at present, the apparatus is used for cleaning compact discs at most. Further, there is a disadvantage that the ultrasonic generator is relatively expensive and cannot be provided at low cost.

[0005] The purpose of the present invention has been made in view of such a technical background. The purpose of the invention is to simplify the structure of the information recording disk and to effectively clean the information recording disk. An object of the present invention is to provide a cleaning device that can perform cleaning without increasing the size.

[0006]

SUMMARY OF THE INVENTION The present invention provides an information recording disk cleaning device for cleaning the surface of an information recording disk with a liquid cleaning liquid. A rotating member having a cylindrical outer shape for inserting and holding an information recording disk along an inner peripheral edge of the hole, and a circumferential surface of the disk rotating member being asymmetric with respect to a plane parallel to gravity passing through the axis of the disk rotating member. A support base for supporting the disk rotating member on both sides of the information recording disk by these two support projections that linearly support the axis parallel to the axis;
A cleaning liquid reservoir provided on the support table and capable of storing at least the information recording portion of the information recording disk so as to be immersed in the cleaning liquid, and applying vibration to the support table,
And vibrating means for converting the force into the rotational direction force of the vibrating disk rotating member via the support protrusion.

[0007]

According to the above-mentioned means, the entire supporting table is vibrated by the vibrating means, and this vibration generates a rotational force on the rotating member via the projection. This force is generated due to the difference in the direction of the component force of the force acting on the rotating member from the two projections. That is, the projection supports the rotating member, but the weight of the rotating member and the information recording disk is added to the projection, and the direction of rotation is defined by the moment generated by the reaction force applied to the two projections of this weight, Each time the rotating member separates from the projection due to the vibration of the support base due to
It rotates a little according to the moment, and the rotation will continue as long as the vibration continues. Thus, the information recording disk rotates while being immersed in the cleaning liquid, and the surface is cleaned by the cleaning liquid during the rotation.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIG. 1 is a sectional view of a cleaning device according to the embodiment. In FIG. 1, a cleaning device 1 has a first support 5 provided with a first concave portion 2 for storing water, a second concave portion 3 for storing cleaning liquid, and an eccentric motor 4 as a vibration means.
And a first support base 5 via an elastic support column 6 made of rubber material.
A compact disk (hereinafter, referred to as an information recording disk) having a substantially cylindrical shape as shown in the sectional view of FIG. , CD) 8 are provided.

The first and second concave portions 2 and 3 of the first support table 5 each have a substantially V-shaped cross section, and the information recording area of the CD 8 is immersed in the cleaning liquid 10 and the label attaching portion is not immersed. It is set to such a depth. At the side of the first support 5 adjacent to the first and second recesses 2 and 3 and at the boundary between the first and second recesses 2 and 3,
Three support portions 11a, 11b, 11c for passing the rotating member 9 between any of the first and second concave portions 2, 3 are provided. These support portions 11a, 11b, 11c
As shown in FIG. 2, the supporting portions 11a, 11b, and 11c are provided from the center O of the rotating member 9 with respect to a horizontal line H passing through the center O, respectively. First and second projections 12 and 13 are formed at positions lowered by angles θ1 and θ2, respectively, along a direction perpendicular to the paper surface.

The second support 7 is provided with a battery holder 14 for holding a power supply for driving the eccentric motor 4 and support legs 15 made of rubber or the like.

As shown in detail in FIG. 3, the rotating member 9 includes a first member 9a provided with a male screw 16a,
The second member 9b is provided with a female screw 16b. The ends 17a and 17b on the side where the screws 16a and 16b are not formed have slightly larger diameters, and the support portions 11a, 11b, 11c can be restricted from moving in the axial direction when mounted. The base 16c of the male screw 16a is formed to have a diameter such that the mounting hole 8a at the center of the CD 8 can be fitted outside. The CD 8 is inserted into the base 16c, and the second member 9b is screwed into the two members 9a, 9b. Edge 18 of
CD8 is sandwiched between a and 18b. Thus C
The rotating member 9 holding the D8 has small diameter portions 19a, 19b.
Are adjacent to each other with the second recess 3 interposed therebetween.
It is supported by. As a result, the rotating member 9 applies a reaction force W1 from the first protrusion 12 toward the center O to the weight W of the rotating member 9 and the CD 8 and a reaction force W2 of gravity from the second protrusion 13 toward the center O. Will receive each.

The cleaning device 1 having the above-described structure collects the water 20 in the first concave portion 2 and the cleaning liquid 10 in the second concave portion 3 up to the position indicated by the dashed line in FIG. The information recording portion of the CD 8 is placed on the second and third support portions 11 b and 11 c and is immersed in the cleaning liquid 10 stored in the second concave portion 3. Next, when a switch (not shown) for driving the motor is pressed, the eccentric motor 4 rotates and the first support base 5 vibrates. Thereby, the rotating member 9 separates from or contacts one or both of the first and second protrusions 12 and 13. These projections 12,
13, the rotating member 9 receives the reaction forces W1 and W2 as described above, and these reaction forces further increase the angles θ1 and θ2.
2 has a horizontal component and a vertical component. In the case of this embodiment, the angle θ1 is set to 15 °, and the angle θ2 is set to 45 °. Therefore, the rotation member 9 is provided with W1co from the first protrusion 12 in the horizontal direction.
A force of s45 ° acts in the vertical direction, and a force of W1 sin15 ° acts in the vertical direction.
A force of s45 ° and a force of W2 sin45 ° in the vertical direction act respectively. These forces cause a moment when the rotating member 9 floats from one of the protrusions 12 or 13 due to vibration. In this embodiment, the rotating member 9 rotates counterclockwise in FIG. The rotation direction and the rotation speed are defined by the difference between the angles of the two projections from the horizontal. That is, when the angle θ2 is equal to the angle θ1, the moments are balanced and rotation does not occur. In this embodiment, if the angle θ2 is less than 45 °, the rotation speed decreases. Therefore, it is important to set the angles so that the angles θ1 and θ2 are not equal, and to set the difference between the two so that the optimum rotation speed is obtained. The rotation speed can also be adjusted by the mass of the rotating member 9.

By rotating the CD 8 at least once, the entire recording area of the CD 8 is sequentially immersed in the cleaning liquid 10 to clean the entire peripheral surface of the recording area. When the cleaning of the recording area is completed, the CD 8 is immersed in the same way in the first recess 2 in which the water 20 is stored, and the rotating member 9 is moved to the first and second support portions 11a and 11a.
By rotating the cleaning liquid 10 while supporting it, the cleaning liquid 10 can be flushed. C cleaned in this way
The cleaning operation is completed when D8 is taken out and dried.

Since the cleaning liquid 10 and the water 20 are contained in the first support 5 which is vibrated by the eccentric motor 4, the cleaning liquid 10 and the water 20 also vibrate, so that the cleaning effect is extremely high. . In addition, a similar cleaning effect can be exerted with a very simple mechanism as compared with a device utilizing ultrasonic vibration.

In the above embodiment, a laser disk or a compact disk has been described as an example. However, it is needless to say that the present invention can be applied to cleaning of a sound groove of an analog record in which a sound is recorded by adjusting a groove depth. . Further, the members 9a and 9b of the rotating member 9 are connected by screwing. However, the members 9a and 9b of the rotating member 9 may be connected by press-fitting an end of the other member 9b into an end of the one member 9a or an end of the one member 9a. The end of the other member 9b may be fitted to the portion, and the two may be connected by slightly rotating one of them, or both may be connected so that the CD8 does not come off due to vibration or rotation.

[0017]

As is clear from the above description, the outer circle inserted into the disc mounting hole formed in the center of the information recording disk and holding the information recording disk along the inner peripheral edge of the hole. A columnar disk rotating member, a support for supporting the disk rotating member on both sides of the information recording disk by a horizontal plane passing through the axis of the disk rotating member and a circumferential surface of the disk rotating member; A cleaning liquid reservoir that can store the information recording portion of the recording disk so as to be immersed in the cleaning liquid;
According to this invention, a vibration means is provided to apply vibration to the support base and convert the vibration into a force in the rotation direction of the disk rotating member via the support protrusion. The vibration energy is converted into a rotational moment to the rotating member via the support protrusion, and the information recording portion is immersed and cleaned while rotating the information recording disk in a state where the cleaning liquid and the information recording disk are both vibrating. Therefore, the information recording disk can be easily and effectively cleaned. Furthermore, since the information recording disk is held upright, the area occupied by the cleaning device for a large-diameter disk can be reduced.

Further, the disk cleaned with the cleaning liquid is rinsed by providing the cleaning water on the support table and providing the cleaning water reservoir with the support projection formed at the upper end thereof. You can also.

[Brief description of the drawings]

FIG. 1 is a sectional view of an information recording disk cleaning device according to an embodiment of the present invention.

FIG. 2 is a side view of the information recording disk cleaning device according to the embodiment.

FIG. 3 is a sectional view of a rotating member holding an information recording disk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cleaning device 3 2nd recessed part 4 Eccentric motor 5 1st support stand 6 2nd support stand 7 CD 9 Rotating member 11a, 11b, 11c Support part 12 1st projection 13 2nd projection

Claims (2)

(57) [Scope of request for utility model registration] In an information recording disk cleaning apparatus for cleaning the surface of an information recording disk with a liquid cleaning liquid, the information recording disk is inserted into a disk mounting hole formed in the center of the information recording disk. A disk rotating member having a cylindrical outer shape for holding the information recording disk along a peripheral edge thereof, and a circumferential surface of the disk rotating member being parallel to the axis at two positions asymmetric with respect to a horizontal plane passing through the axis of the disk rotating member. A support base for supporting the disk rotating member on both sides of the information recording disk by means of the support projections, and at least an information recording portion of the information recording disk is provided on the support base for cleaning. A cleaning liquid reservoir that can be stored so as to be immersed in a liquid, and a vibration is applied to the support base, and the vibration is generated through the support protrusion. And a vibrating means for converting the force into a force in the direction of rotation of the disk rotating member. 2. The information recording disk according to claim 1, wherein the support base is capable of storing cleaning water, and further has a cleaning water reservoir formed with the support protrusion at an upper end thereof. Cleaning device.