JPH0632195B2 - Disk Cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is a disk cleaner that effectively wipes dust, fingerprints, and other dirt adhering to, for example, a digital audio disk (product name compact disk), an optical disk, and the like. Regarding

[Conventional technology]

For example, as a method of cleaning a digital audio disk, wiping in the circumferential direction is taboo, and wiping in the radial direction is the correct cleaning method. This is because the pits engraved on the disc are elliptical and lined up in a circular shape, and even if the surface is scratched and wiped in the radial direction, the pits cross the pits. This is because wiping in the circumferential direction easily scratches the pits in the form of longitudinal cuts, and this scratching may cause signal loss and may damage adjacent pits all at once.

Therefore, conventionally, as shown in FIG. 12 and FIG. 13, generally, the disk 3 is placed on a mat 6 made of rubber or the like laid on the mounting surface 5, and a circle on the signal surface of the disk 3 is placed. An annular or disk-shaped cleaning body 55 that is partially circumferential
Is used to wipe off dirt on the signal surface (for example, Japanese Utility Model Laid-Open No. 60-116604 and Japanese Patent Laid-Open No. 60-234276).

[Problems to be solved by the invention]

However, in the above-described conventional disk cleaner, the center O ₁ of the disk 3, which is the center of revolution of the cleaning body 55, is not the cleaning body 5.
Since the disk 3 is located outside the rotation area of No. 5 and is held by the cleaning body 55 only within this radial area, the disk 3 is tilted as shown in FIG. The portion 3b at the symmetrical position with respect to the center O ₁ floats up from the mat 6 and is therefore free from the mat 6, so that the cleaning body 55 is pressed on the surface of the disk 3 which is held by the cleaning body 55.
There was a portion where the contact was too strong (a portion close to the floating portion of the disk) and a portion where the cleaning was weak and the cleaning effect was low (a portion away from the rising portion of the disk), and uneven wiping was likely to occur.

This invention pays attention to such a fact and devises the arrangement setting of the cleaning body with respect to the signal surface of the disk, so that the disk is constantly pushed in the horizontal state without tilting on the mounting surface and evenly wiped evenly. The purpose is to be able to be cleaned.

[Means for solving problems]

In the present invention, as shown in FIG. 1, the disc 3 is placed on the placing surface 5 of the main body case 1. The cleaning member 21 rotates while revolving with respect to the upper signal plane of the disk 3, to a position where the rotation center O ₂ is polarized from the center O ₁ of the disc 3, respectively located the center O ₁ of the disc 3 in the automatic area Arrange and set to.

Specifically, the drive gear 27 is projected upward in the center of the mounting surface 5 of the main body case 1. On the other hand, a fixed internal gear 46, which is concentric with the drive gear 27, is arranged on the inner surface side of the lid 2 which covers the mounting surface 5 and the one side of the support plate 49 is located at the center of the fixed internal gear 46. The end of the cleaning plate base 39 is rotatably pivotally attached to the other end of the support plate 49. Fix it. On the lower surface side of the cleaning body base 39, an input internal gear 45 that meshes with the drive gear 27 is fixed in the center of the cleaning body base 39, and the cleaning body 21 is connected to the diameter of the input internal gear 45. Prepare to exist outside the direction.

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

The cleaning body 21 is formed to have a plurality of protruding cleaning portions 21a extending radially from the rotation center O ₂ .
It does not matter whether each of the protruding cleaning portions 21a has a shape in which they are integrally connected to each other or an independent shape. Further, the cleaning body 21 may be of a single body type, which is formed in a ring shape or a disk shape as a whole.

The disk 3 may be positioned and fixed stationary on the mounting surface 5 or may be rotated.

When positioning and fixing the disk 3 on the mounting surface 5, it is necessary to lay on the mounting surface 5 a mat 6 made of a flexible material having a large friction coefficient, such as chamois or rubber. It is preferable in order to prevent slippage and scratches in No. 3, but it is not always necessary.

[Action]

At this time, the cleaning element 21 revolves around the center of the fixed internal gear 46 on the signal surface of the disk 3 while rotating around the center of the cleaning element base 39, so that the disk 3 is rotated.
The signal surface of will be cleaned in the radial direction.
At this time, the center O of the disk 3 is placed in the rotation area of the cleaning body 21.
₁ is located, that is, the cleaning body 21 presses and abuts on the signal surface so as to straddle the center O _{1 of the} disk 3 in the radial direction, so that the disk 3 is always horizontal with respect to the mounting surface 5. Since the cleaning can be performed under the maintained state, the pressure contact force of the cleaning surface of the cleaning body 21 with respect to the disk 3 is not uneven in strength and weakness, and the cleaning can be efficiently performed with the uniform pressure contact force.

〔Example〕

An embodiment of the disk cleaner according to the present invention will be described with reference to FIGS. 1 to 10.

In FIG. 2 and FIG. 3, this disk cleaner has a main body case 1 formed by abutting upper and lower cases 1a and 1b.
And a lid 2, and the main body case 1 has a disc 3 which is a digital audio disc on the upper surface of the upper case 1a.
A circular recess 4 for mounting and positioning the disk is formed, and a mat 6 made of chamois or the like for receiving the label surface of the disc 3 is laid on the circular recess 4 as the mounting surface 5 using the inner bottom surface of the recess 4. is doing. Further, as shown in FIG. 1, a groove 7 is formed on the upper surface of the main body case 1 so as to communicate with the left and right sides of the recess 4, and a finger is inserted through the groove 7 to insert the disc 3 in the recess 4. Makes it easy to take in and out.

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

As shown in FIGS. 5 and 6, the lid 2 and the main body case 1
A lid closing lock means and an opening urging means are provided side by side between them. The opening biasing means constantly biases the eject pin 10 from the front end part of the upper surface of the main body case 1 by a spring 11 while projecting a pressing pin 12 on the inner surface side of the lid 2 to completely cover the lid 2. When closed, the pressing pin 12 pushes down the eject pin 10 against the spring 11.
The lid closing lock means mounts a claw 14 of a lock piece 15 having a claw 14 on a part of the front wall 13 of the main body case 1 so as to be retractable and retractable via a spring 16 while facing 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. When the lid 2 is completely closed, the claw 14 of the lock piece 15 engages with the recess 18, and when the lock piece 15 is pushed in the direction of the arrow in FIG. 14 disengages from the recess 18, and at the same time, the eject pin 10 pushes up the pressing pin 12 so that the lid 2 opens slightly upward.

An output end 19 and a driving source 20 are housed in the main body case 1, while a cleaning body 21 is provided on the lid 2 side, and a cleaning body rotating mechanism 22 that receives the rotation from the output end 19 to revolve and rotate the cleaning body 21. I am wearing it.

As shown in FIGS. 2 and 3, on the main body case 1 side, a motor is used as the drive source 20, and the motor 20 is housed in the battery box portion 8 of the main body case 1 side by side with the battery 23 that is its power source. is doing. An opening 24 is formed in the center of the mounting surface 5 of the main body case 1, and the drive shaft 26 is attached to the boss 25 on the inner bottom surface of the case below the opening 24.
Is rotatably vertically inserted and supported, and a drive gear 27 is fixed to the upper end of the drive shaft 26. Drive gear 2
7 has a small diameter tooth 27a on the outer periphery of the upper end and a tooth 27b of a larger diameter on the outer periphery of the lower end. The tooth 27a of the drive gear 27, which is the output end 19, extends from the opening 24 to the mat 6 Protruding above. The drive gear 27 is transmitted by a timing belt 30 spanning a worm gear 29 meshing with a worm 28 on the shaft of the motor 20 and a tooth 27b at the lower end of the drive gear 27, and is decelerated and rotated.

The control of the motor 20 is performed by a drive source on / off switch 31 and a disc set detection switch 32 which are incorporated in series in a motor drive circuit as shown in FIG. The drive source on / off switch 31 is built in the main body case 1 as shown in FIG. 8, and is turned on by being pressed by the operation knob 34 which is constantly biased toward the lid 2 side by the spring 33 so as to project outside the lid. It has become. The positional relationship between the operation knob 34 and the on / off switch 31 is set so that the tip 34a of the operation knob 34 matches the position of the switch 31 only after the lid 2 is completely closed, and the operation knob 34 is closed after the lid 2 is closed. The switch 31 is turned on only after the pressing operation. In addition, the disk set detection switch 32, as shown in FIG.
From the opening 35 provided on a part of the mounting surface 5 of the detection pin 3
6 is constantly biased by a cantilevered leaf spring 37,
The detection pin 36 is pushed down by the weight of the disk 3 and the free end portion 37 of the spring 37 is not provided until the disk is placed on the mat 6 on the mounting surface 5 in a normal horizontal state.
When a is flexed and deformed, the movable contact 32a of the switch 32 comes into contact with the fixed contact 32b along with this deformation.

On the lid 2 side, as shown in FIGS. 1 and 4, the cleaning body 21 has four projecting cleaning portions 21a which are arranged independently from each other in the radial direction from the rotation center O ₂ thereof. 21a is the rotation center O ₂ of the cross-shaped cleaning body base 39.
All are provided on the lower surface side of the respective arm portions 39a extending radially from so as to be arranged at equal angles on the same circle. More specifically, each projecting cleaning portion 21a is composed of an annular pad made of napped urethane and sponge and is fitted and fixed to a disc-shaped pad receiver 41. The pad receiver 41 is provided on the lower surface side of the arm portion 39a. It is supported by a protruding boss 42 so as to be vertically movable and freely rotatable, and is constantly urged downward by a spring 43 wound around the boss 42. The length between the protruding cleaning portions 21a and 21a facing each other is set larger than the radius of the disk 3.

The cleaning body rotating mechanism 22 is configured as follows. An annular planetary gear 44 is formed at the center of the upper surface of the cleaning body base 39, and an input internal gear 45 is formed at the center of the lower surface. On the other hand, the transparent window portion 2a provided for confirming the cleaning status on the window 2
The fixed internal gear 46 is coupled and fixed to the inner surface side of the with screws 47,
The planetary gear 44 is meshed with the fixed internal gear 46, one end of a support plate 49 is rotatably fitted to the central boss 48 of the fixed internal gear 46, and the other end of the plate 49 is attached to the cleaning body base 39. A pin 51 is connected to a central boss 50 surrounded by the planetary gear 44.

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

Further, regarding the positional relationship between the cleaning body 21 and the disk 3 on the mounting surface 5, when the lid 2 is closed, the rotation center O _{2 of the} cleaning body base 39 is changed.
There together present in a position obtained by partially from the center O ₁ of the disc 3, the center O ₁ of the disc 3 is set so as to be positioned between the protruding cleaning portion 21a · 21a opposed to each other.

At that time, as shown in FIG. 3, the lid 2 is opened, the disc 3 is placed horizontally on the mat 6 on the placing surface 5, and the disc 3 is placed.
The cleaning liquid is sprayed onto the signal surface of No. 2 by a spray or the like, and then the lid 2 is completely closed as shown in FIG. Then, the input internal gear 45 of the cleaning body rotating mechanism 22 on the lid 2 side is
Is obtained to be engaged with the output end 19, and at this time, when the operation knob 34 is pressed to turn on the switch 31, the motor 22 is rotated. The output end 19 is rotated by the rotation of the motor 22, and the cleaning body 21 revolves 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 locus differs depending on the ratio of the planetary gear 44 and the fixed internal gear 46,
The locus shown in FIG. 7 is when the gear ratio is about 1: 3. In the figure, arrow B indicates the direction of revolution, and arrow C indicates the direction of rotation. As can be seen by looking at this locus, each protruding cleaning unit 21
a moves radially on the signal surface of the disk 3 for cleaning. Further, according to the cleaning body 21, the disk 3 is pressed and abutted so as to straddle the center O _{1 of the} disk 3, so that the disk 3 is always kept in a horizontal state on the mat 6 during cleaning, and the entire signal surface of the cleaning surface 21 of the protruding cleaning portion 21a. The uniform pressing contact force results in uniform cleaning.

[Another embodiment]

FIG. 11 shows a modified embodiment of the cleaning body 21, in which the cleaning body 21 is formed in a single body shape in which it is formed in an annular shape.

〔The invention's effect〕

As described above, according to the present invention, the cleaning body 21 that revolves while revolving revolves uniformly on the signal surface while the disk 3 is constantly pressed horizontally against the mounting surface 5. There is an advantage that cleaning can be performed by abutting force and uneven wear of the cleaning body 21 can be eliminated.

In particular, the center of the fixed internal gear 46 (revolution center O ₁ ) provided concentrically with the drive gear 27 on the inner surface side of the lid 2 and the center of the planetary gear 44 fixed to the center of the upper surface of the cleaning body base 39 (rotation center). The axial distance to O ₂ ) is kept constant by the support plate 49. Therefore, the meshing between the planetary gear 44 and the fixed internal gear 46, and the meshing between the input internal gear 45 fixed to the center of the lower surface side of the cleaning element base 38 and the drive gear 27 ensure smooth and self-revolving drive transmission. It has the effect of being performed reliably.

[Brief description of drawings]

1 to 10 show an embodiment of a disk cleaner according to the present invention. FIG. 1 is an internal plan view showing a lid removed, and FIG. 2 is a longitudinal sectional view showing a lid in a closed state. FIG. 3 is a vertical sectional view showing the lid in an opened state, FIG. 4 is an exploded perspective view of a drive system of the cleaning body, FIG. 5 is a sectional view of a lid closing lock mechanism portion, and FIG. 6 is a lid opening urging mechanism portion. Fig. 7 is a cross-sectional view of the cleaning body, Fig. 8 is a cross-sectional view of the switch operation mechanism portion, and Fig. 9
FIG. 10 is a sectional view of the disk set detection mechanism portion, 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 and 13 schematically show an example of a conventional disk cleaner, FIG. 12 is a plan view, and FIG. 13 is a side view. 1 ... Main body case, 3 ... Disk, 5 ... Mounting surface, 21 ... Cleaning body, 21a ... Projection cleaning section, 39 ... Cleaning body base.

Claims (1)

[Claims] 1. A main body case 1 having a mounting surface 5 on which a disk 3 is mounted, a lid 2 which covers the mounting surface 5 from above, and a cleaning body 21 which revolves on the surface of the disk 3 while revolving. The drive gear 27 is projected upward in the center of the mounting surface 5 of the main body case 1, and the fixed internal gear 46 concentric with the drive gear 27 is disposed on the inner surface side of the lid 2. , One end side of the support plate 49 is rotatably and pivotally attached to the center of the fixed internal gear 46, and the center portion of the upper surface of the cleaning body base 39 is coupled to the other end side of the support plate 49 to form the upper surface of the cleaning body base 39. A planetary gear 44 that meshes with a fixed internal gear 46 is fixed to the center, and an input internal gear that meshes with the drive gear 27 with the lid 2 closed at the center of the lower surface of the cleaning body base 39. 45
And the cleaning body 21 is input to the internal gear 4
5. A disk cleaner provided so as to be present radially outward of 5.