JPS62222479A - Disk cleaner - Google Patents

Abstract

PURPOSE:To uniformly and also certainly clean a disk from various directions, by constituting the center of rotation of four cleaning bodies extending in a radial direction from a center so as to be decentered from the center of rotation of the disk. CONSTITUTION:A cleaning body 21 and its rotating mechanism 22 are provided on a cover 2, and the output terminal 19 of a main body case 1 side is engaged with a part of the input inner gear of the mechanism 22, then being driven. A cleaning body 21 extends four protruding cleaning parts 21a on a base 39 in the radial direction from the center O2 of the base, and supports them independently, and also, energizes them by a spring in the downward direction. The center O2 of rotation of the cleaning body 21 is positioned at a position decentered from the center O1 of a disk 3, and the locus of a point P on the cleaning body 21 caused by rotation and revolution cleans up on the disk uniformly, and cleans up a soiled part from all directions. Therefore, the disk 3 on a placing plane 5 can be cleaned up uniformly and also efficiently and exactly from al directions.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a digital audio disc (
This product relates to a disc cleaner that effectively wipes away dirt such as chains and fingerprints adhering to optical discs (product name: Compact Disc).

[Conventional technology]

For example, the proper cleaning method for digital audio discs is to wipe them in the circumferential direction, while wiping them in the radial direction is considered to be the correct cleaning method. This is because the pits carved on the disk are oval and arranged circumferentially, and even if the surface is scratched by wiping in the radial direction, the pits cross the bit and will not have much of an effect. This is because wiping in the circumferential direction tends to cause scratches across the bit, and these scratches cause signal loss and can also damage adjacent pits at once.

Therefore, conventionally, the disk 3 is generally placed on a mounting surface 5 as shown in FIGS. 13 and 14, and then placed on a matturo made of rubber or the like.

A ring-shaped or disc-shaped cleaning body 55 is pressed against a part of the signal surface of the disk 3 in the circumferential direction to wipe away dirt on the signal surface (for example,

Utility Model Publication No. 60-116604, Japanese Patent Application Publication No. 60-234
Publication No. 276).

[Problem that the invention seeks to solve]

The first problem that this invention attempts to solve is:

In the conventional disk cleaner described above, the center 01 of the disk 3, which is the center of revolution of the cleaning body 55, is located outside the rotation area of the cleaning body 55, and the disk 3 is held down by the cleaning body 55 only within this radius area. Therefore, the disk 3 is tilted as shown in FIG.

Location 3a pressed by cleaning body 55 and disk center 01
The part 3b located in the symmetrical position with respect to the disc 3 is more likely to float than the manotoro, and therefore, on the surface of the disc 3 that is pressed by the cleaning member 55, the cleaning member 55 hits too strongly (the part near the floating part of the disc) and the part that hits weakly. There were areas where the cleaning effect was low (the areas where the disk rose and went far from the edge), and uneven wiping was likely to occur.

The second problem is that the cleaning body 55, which is of the type that rotates while revolving, has the above-mentioned positional relationship between the rotation area and the center of revolution 01 (center of the disk), and the cleaning body 55
If it is assumed that a dirty portion M is attached to the surface of the disk 3 as shown in FIG. 13 because the disk 5 consists of only a single annular or disc-shaped body, the cleaning body that rotates while revolving around the disk 3. 55 enters the soiled portion M only from one direction A, and as a result, the effect of wiping the soiled portion is not so great.

The present invention focuses on this fact, and by devising the arrangement of the cleaning body with respect to the signal surface of the disk, the disk is always pressed horizontally without tilting on the mounting surface, and wiped uniformly and evenly. The purpose is to be able to be cleaned.

Another object of the present invention is to make it possible to efficiently and reliably wipe the dirty portions on the signal surface of the disk from as many directions as possible by improving the structure of the cleaning body.

[Means for solving problems]

In this invention, the disc 3 is placed on the mounting surface 5 of the main body case l. The cleaning body 21, which rotates while revolving on the signal surface of the disk 3, is placed in a position where its rotation center 02 is offset from the center 01 of the disk 3.

The disks 3 are arranged so that the center o1 of each disk 3 is located within the rotation area. The cleaning body 21 is formed to have a plurality of protruding cleaning parts 21a extending radially from the rotation center 02.

Here, the disk 3 includes a compact disk, an optical disk, a compact disk-ROM,
Examples include magnetic disks.

Each of the protruding cleaning parts 21a has a shape that is continuous with each other.

It is not a question of independent shapes.

It does not matter whether the disk 3 is positioned and fixed on the mounting surface 5 in a stationary state or rotated once.

When positioning and fixing the disk 3 on the mounting surface 5, f2
It is preferable to lay matsuro made of a flexible material 1 such as chamois leather or rubber on the mounting surface 5 in order to prevent the disc 3 from slipping and being scratched, but it is not always necessary. It is not intended to be.

The cleaning body 21 can be driven to revolve and rotate regardless of whether it is an automatic type or a two-manual type.

[Effect]

In this case, the cleaning body 21 cleans the signal surface of the disk 3 in the radial direction by rotating while revolving on the signal surface of the disk 3. At this time, the cleaning body 21 cleans the signal surface of the disk 3 in the radial direction. 3 is located at the center 01 of the disk 3, in other words, the cleaning body 21 is in pressure contact with the signal surface while straddling the center 01 of the disk 3 in the radial direction, so that the entire disk 3 is always placed on the mounting surface 5. On the other hand, cleaning can be performed under the condition that the cleaning surface of the cleaning body 21 is maintained horizontally, and therefore, there is no unevenness in the pressure contact force of the cleaning surface of the cleaning body 21 against the disk 3, and cleaning can be performed efficiently with a uniform pressure contact force. can. Also.

The plurality of protruding cleaning parts 21a extending radially from the rotation center 02 of the cleaning body 21 that rotates while revolving each have different movement trajectories, so that they can clean the dirty portion M on the disk 3 from multiple directions. This will further enhance the wiping and cleaning effect.

〔Example〕

An embodiment of a disk cleaner according to the present invention will be explained based on FIGS. 1 to 10.

In FIGS. 2 and 3, this disk cleaner has a main body case 1 made by butting together upper and lower cases 1a and 1b.
The main case l has a lid 2 and a disc 3, which is a digital audio disc, on the top surface of the upper case 1a.
A circular recess 4 is formed for placing and positioning the disc 3, and the inner bottom surface of the recess 4 is used as a mounting surface 5, on which a matturo made of chamois leather or the like is laid to receive the label surface of the disc 3. ing. Further, as shown in FIG. 1, a groove 7 is formed on the upper surface of the main body case 1 and communicates with the left and right sides of the recess 4. It makes loading and unloading operations easy.

A battery box part 8 is formed in the rear part of the upper surface of the main body case 1 from the recess 4 so as to project upwardly, and on both sides of the battery box part 8 are the lids 2 for opening and closing the upper surface of the main body case 1. The rear end portion is rotatably connected with a pivot 9.

As shown in FIGS. 5 and 6, the lid 2 and the main case 1
A lid closing locking means and an opening biasing means are provided side by side in between. What is the opening biasing means?

The eject bin 10 is ejected from a part of the front end of the upper surface of the main body case 1.
A presser pin 12 is provided protruding from the inner surface of the lid 2, and when the lid 2 is completely closed, the presser pin 1
2 pushes down the eject bin 10 against the spring 11. The lid closing locking means includes a claw 1 of a locking piece 15 having a claw 14 on a part of the front wall 13 of the main body case 1.
A recess 18 is provided on the inner surface of the front wall 17 of the lid 2 facing the front wall 13 of the main body case 1, and when the lid 2 is completely closed, the lock piece 15 The claw 14 engages with the recess 18 and locks the lock piece 15 into the fifth position.
When pushed in the direction of the arrow in the figure, the claw 14 comes off from the four parts 18, and at the same time, the eject bottle 10 pushes up the presser bottle 12, causing the lid 2 to open slightly upward.

Inside the main body case 1 is a part that houses an output end 19 and a drive source 20, and on the lid 2 side there is a cleaning body 21, and the cleaning body 21 revolves under rotation from the output end 19.

A cleaning body rotation mechanism 22 for rotation is installed.

On the main body case 1 side, as shown in FIGS. 2 and 3, a motor is used as a drive source 20, and this motor 20 is stored in the battery box part 8 of the main body case 1 alongside a battery 23 that serves as its power source. are doing. An opening 24 is formed in the center of the mounting surface 5 of the main body case 1, and a drive shaft 26 is attached to a boss 25 on the inner bottom surface of the case below this opening 24.
is rotatably inserted and supported vertically, and a drive gear 27 is fixed to the upper end of the drive shaft 26. Drive gear 2
7 has teeth 27a with a small diameter on the outer periphery of the upper end, which becomes the output end 19, and teeth 27b with a larger diameter on the outer periphery of the lower end. protrudes upward. The drive gear 27 is driven by a timing belt 30 that extends between a worm gear 29 meshing with a worm 28 on the shaft of the motor 20 and teeth 27b at the lower end of the drive gear 27, and rotates while being decelerated.

The motor 20 is controlled by a drive source on/off switch 31 and a disk set detection switch 32, which are incorporated in series in the motor drive circuit, as shown in FIG. The drive source on/off switch 31 is built into the main body case 1 as shown in FIG. 8, and is turned on by being pressed by an operation knob 34 on the lid 2 side that is always biased to protrude outside the lid by a spring 33. It has become. The arrangement of the operating knob 34 and the on/off switch 31 is set so that the tip 34a of the operating knob 34 matches the position of the switch 31 only after the lid 2 is completely closed. The switch 31 is turned on only after a pressing operation is performed. Further, the disk set detection switch 32 is connected to one main body case 1 as shown in FIG.
The detection pin 3 is inserted through the opening 35 provided in a part of the mounting surface 5 of the
6 is constantly urged to protrude by a cantilevered leaf spring 37, and the disk 3
It is only when the disc 3 is placed in a horizontal normal state on the mounting surface 5 that the detection pin 36 is pushed down by the weight of the disc 3 and the free tip 37 of the spring 37 is pressed down.
a is bent and deformed, and with this deformation, the movable contact 32a of the switch 32 comes into contact with the fixed contact 32b.

On the lid 2 side, as shown in FIGS. 1 and 4, the cleaning body 21 has four protruding cleaning parts 21a arranged independently from each other in the radial direction from the rotation center 02, and each protruding cleaning part 21a is the rotation center 02 of the cross-shaped cleaning body base 39
All of the arms 39a are provided on the lower surface side of the arms 39a extending radially from the center so that they are arranged on the same circle at equal angles. More specifically, each protruding cleaning part 21as is made of an annular pad made of raised urethane and sponge, and is fitted and fixed to a disc-shaped pad receiver 41, and the pad receiver 41 is formed on the lower surface side of the arm part 39a. It is supported by a recessed boss 42 so as to be able to move up and down and freely rotate, and is constantly biased downward by a spring 43 wound around the boss 42 . Note that the length between the opposing protruding cleaning parts 21a and 21a is set to be larger than the radius of the disk 3.

The cleaning body rotation mechanism 22 is configured as follows.

An annular planetary gear 44 is installed in the center of the upper surface of the cleaning body base 39.
An input internal gear 45 is formed at the center of the lower surface.

On the other hand, a fixed internal gear 46 is coupled and fixed with screws 47 to the inner surface of a transparent window 2a provided in the window 2 to check the cleaning status, and the planetary gear 44 is meshed with this fixed internal gear 46. At the same time, one end of the support plate is rotatably fitted to the central boss 48 of the fixed internal gear 46, and the plate 4
The other end of the cleaning body base 39 is connected to a central boss 50 surrounded by the planetary gear 44 with a bin 51 .

The arrangement relationship between the cleaning body rotation mechanism 22 on the lid 2 side and the output end 19 on the main body case 1 side is such that when the lid 2 is closed, the output end 19 is connected to the input internal gear 45 of the cleaning body rotation mechanism 22 in the lid 2 example. It is set so that it meshes with a part of the circumference, and when the lid 2 is opened, the input internal gear 45 is separated from the output end 19.

Further, the arrangement relationship between the cleaning body 21 and the disk 3 on the mounting surface 5 is such that when the lid 2 is closed, the rotation center o2 of the cleaning body base 39 is
is located at a position offset from the center 01 of the disk 3, and the center 01 of the disk 3 is located between the opposing protruding cleaning portions 21a, 21a.

When this happens, open the lid 2 as shown in Figure 3.

Place the disc 3 horizontally on the mounting surface 5.

After spraying a cleaning liquid onto the signal surface of the disk 3, the lid 2 is completely closed as shown in FIG. Then, a state is obtained in which the input internal gear 45 of the cleaning body rotation mechanism 22 on the lid 2 side engages with the output end 19. At this time, when the operation knob 34 is pressed and the switch 31 is turned on, the motor 22 is rotated. The rotation of the motor 22 causes the output end 19 to rotate, and the cleaning body 21 rotates around the pin 51 of the cleaning body base 39 while revolving around the center of the fixed internal gear 46 .

The locus of one point P of one protruding cleaning portion 21a at this time is as shown in FIG. however.

This & mark differs depending on the ratio of the planetary gear 44 and the fixed internal gear 46, but the trajectory shown in Fig. 7 has a gear ratio of approximately 1:3.
This is the case. In the figure, arrow B indicates the direction of revolution, and arrow C indicates the direction of rotation. this! As can be seen from the 1L marks, each protruding cleaning section 2La cleans the signal surface of the disk 3 by moving in the radial direction. In addition, since the cleaning body 21 presses and contacts the disk 3 in a manner that straddles the center o1, the disk 3 is always maintained in a horizontal state on the maturo during cleaning, and the entire signal surface is uniformly covered by the protruding cleaning portion 21a. The pressure and contact force will cause uniform cleaning.

Furthermore, since each of the protruding cleaning parts 21a of the cleaning body 21 has a different starting position and a different trajectory, as shown in FIG. A
3. It will be wiped off from...

[Another example]

FIG. 11 shows a modified embodiment of the cleaning body 21, in which the protruding cleaning portion 21a is connected to the arm portion 3 of the cleaning body base 39.
It is formed into an oval shape that matches the shape of 9a.

FIG. 12 (al and (bl) shows yet another modified embodiment of the cleaning body 21, in which three or four protruding cleaning parts 21a extending in the radial direction from the center of the cleaning body 21 are provided. They are formed in such a way that they are connected to each other.

〔Effect of the invention〕

As explained above, according to the present invention, the cleaning body 21, which rotates while revolving, applies uniform pressure on the signal surface while the disk 3 is always pressed horizontally against the mounting surface 5. There is an advantage that cleaning can be performed by contact force, and that the dirty portion M on the surface of the disk 3 can be efficiently and reliably wiped off from multiple directions using the plurality of protruding cleaning portions 21a.

[Brief explanation of drawings]

1 to 10 show an embodiment of the disk cleaner according to the present invention, in which FIG. 1 is an internal plan view with the lid removed, FIG. 2 is a vertical sectional view with the lid closed, FIG. 3 is a longitudinal sectional view showing the lid in a closed state. Figure 4 is an exploded perspective view of the drive system of the cleaning body, Figure 5 is a sectional view of the lid closing locking mechanism, Figure 6 is a sectional view of the lid opening biasing mechanism, and Figure 7 is a trajectory diagram of the cleaning body. . FIG. 8 is a sectional view of the switch operation mechanism, FIG. 9 is a sectional view of the disk set detection mechanism, and FIG. 10 is a circuit diagram. FIG. 11 is a plan view showing another embodiment of the cleaning body of the disk cleaner according to the present invention. 12(al) and (b) are both plan views showing still another embodiment of the cleaning body of the disk cleaner according to the present invention. FIGS. 13 and 14 schematically show an example of a conventional disk cleaner. Fig. 13 is a plan view, and Fig. 14 is a side view. 1. Main body case. 3. Disc. 5. Placement surface. 21. Cleaning. Body. 21a... Protruding cleaning part. 39... Cleaning body base. Inventor: Masaaki Nagao Masaya Terayama 11th
Figure 12 (a) Figure 12 (b) Figure 13 Figure 14

Claims (4)

[Claims] (1) The disk 3 is placed on the above-described placement surface 5 of the main body case 1 having the placement surface 5, and the cleaning body 21, which rotates while revolving on the signal surface of the disk 3, sets the rotation center O_2 of the disk 3. The cleaning body 21 is arranged at an eccentric position of No. 3 so that the center O_1 of the disk 3 is located within the rotation area, and the cleaning body 21 is formed to have a plurality of protruding cleaning parts 21a extending in a radial direction from the rotation center O_2. A disc cleaner characterized by: (2) The cleaning body 21 is connected to the cleaning body base 39 and the rotation center O_
A plurality of protruding cleaning parts 21 arranged independently in the radial direction from 2
a, and each protruding cleaning part 21a is connected to the cleaning body base 39.
2. A disk cleaner according to claim 1, wherein the disk cleaner is supported independently from the disk and is constantly biased toward the disk signal surface. (3) The disk cleaner according to claim 2, wherein each protruding cleaning portion 21a is supported on the cleaning body base 39 so as to be vertically movable and freely rotatable. (4) The disk cleaner according to claim 3, wherein each protruding cleaning portion 21a is formed in an annular shape, and a boss 42 protruding from the cleaning body base 39 is fitted into the center of the protruding cleaning portion 21a.