JP2002190180A - Disk cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk cleaner which efficiently prevents shavings from entering a motor room. SOLUTION: A disk-polishing room (20S) in which a turntable on which a disk (1) is put is arranged and a motor room (12S) in which motors (35A and 35B) provided with polishing tools (5A and 5B) for polishing the surface to be polished of the disk 1 are installed in the output shaft (35a) through a polishing-tool holding tools (50A and 50B) are arranged to be next to each other. The output shaft (35a) of the motors (35A and 35B) is inserted in the disk-polishing room (20S) through shaft-play apertures (12c and 12c) formed in the bottom plate (12C) of the motor room (12S), and a cylindrical elastic body (200) consisting of gum or the like, which is extendable in the direction of height, is arranged so that the output shaft (35a) can be surrounded and the blockade between the bottom plate (12C) and the motors (35A and 35B) can always be made in order to prevent the shavings (K) from entering the motor room (12S) through the shaft-play apertures (12c and 12c).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing method using a buff or the like on a surface to be polished of a disk such as an optical disk or a magneto-optical disk as an information recording medium, in order to remove scratches and stains on the surface of the disk. The present invention relates to a disk cleaner adapted to polish the surface to be polished by pressing and rotating a tool.

[0002]

2. Description of the Related Art In recent years, as information recording media for audio / video or computers, laser disks (registered trademark), CDs (compact disks), CD-ROMs,
Discs such as DVDs are generally widely used, but if such discs have scratches or dirt on the surface, particularly the recording surface, they not only have a bad appearance but also have scratches and dirt. The recorded information of the part becomes unreadable,
Playback cannot be performed properly.

[0003] For this reason, in the past, a cloth or the like was used to manually remove the scratches and dirt on the disk. However, the manual operation requires time and effort, and the scratches and dirt are sufficiently removed. Cannot be removed. In particular, used C
D Where a large number of discs such as stores and libraries are held and frequently replaced or rented, a great deal of effort will be devoted to removing scratches and dirt on the discs.
It is strongly desired that the scratches and dirt on the disc can be removed mechanically and automatically rather than manually.

In order to meet such demands, for example, Japanese Patent Application Laid-Open No. Hei 7-122038 discloses that a disk-shaped polishing tool such as a buff is applied to a polished surface (recording surface) of a disk while rotating the disk. There has been proposed a disk cleaner in which the peripheral surface is pressed to rotate the polishing tool to polish the surface to be polished.

[0005] Also, as disclosed in Japanese Patent No. 3007566, the applicant of the present invention presses a polishing tool made of a buff or the like on a surface to be polished of a disk, and rotates the polishing tool to produce the polishing. The surface of the disk is made to be polished, and the axis of rotation of the polishing tool is arranged perpendicular to the surface to be polished at the time of polishing. The polishing tool is pressed to rotate the polishing tool to polish the surface to be polished, and when polishing a disk, the rotation axis of the polishing tool is arranged perpendicular to the surface to be polished, There has been proposed a disk cleaner in which the disk is rotated by a frictional force between the disk and the surface to be polished (Japanese Unexamined Patent Application, First Publication No. H11-146,197).
000-11601).

[0006]

By the way, in the proposed disk cleaner, a disk polishing chamber in which a turntable on which a disk is mounted is arranged, and a polishing tool for polishing a surface to be polished of the disk are a polishing tool. And a motor chamber in which a motor attached to the output shaft of the motor chamber is disposed via a holder, and the motor chamber is defined side by side, and the output shaft of the motor is formed through a shaft play insertion hole formed in a bottom plate of the motor chamber. It is inserted into the disk polishing chamber.

More specifically, it has a lower housing, and an upper housing that can be opened upward with a hinge member provided on the back side of the lower housing as a fulcrum. The disc polishing chamber is formed between the top plate of the housing and the bottom plate of the upper housing, that is, by closing the upper housing toward the lower housing, thereby forming the motor chamber in the upper housing. Have been.

Further, the motor and the polishing tool are movable in a direction perpendicular to the surface to be polished of the disk, and when polishing the disk, the polishing tool is moved to the surface to be polished of the disk. After the polishing, the polishing tool is separated from the surface to be polished.

In the disk cleaner having such a structure, shavings, abrasive powder, and the like that come out when the disk is polished with the polishing tool are free from the shaft free insertion formed on the bottom plate of the motor chamber. There is a problem that the motor enters the motor chamber via a gap formed between the hole and the output shaft (grinding tool holder) of the motor.

When the shavings and the like enter the motor chamber, not only does the motor chamber become dirty, but also malfunctions occur in the mechanical components (elevating mechanism for moving the motor and the polishing tool) disposed therein. Sometimes. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a disk cleaner capable of effectively preventing entry of shavings and the like into a motor room. is there.

[0011]

In order to achieve the above object, a disk cleaner according to the present invention basically includes a disk polishing chamber in which a turntable on which a disk is mounted is disposed, and a disk polishing chamber for the disk. A polishing chamber for polishing the surface to be polished, a motor chamber in which a motor mounted on an output shaft thereof is mounted via a polishing tool holder, and a motor chamber in which the output shaft of the motor is defined as the motor chamber. Is inserted into the disk polishing chamber through a shaft insertion hole formed in the bottom plate.

[0012] In order to prevent shavings and the like from entering the motor chamber through the shaft play insertion hole, the output shaft is surrounded and the space between the bottom plate and the motor is always sealed. As described above, a cylindrical elastic body made of rubber or the like that can expand and contract along the rotation axis of the polishing tool holder is provided.

In a preferred aspect of the present invention, the motor and the polishing tool are movable in a direction perpendicular to a surface to be polished of the disk. Further, the cylindrical elastic body,
Preferably, it has a barrel shape or a bellows shape, and more preferably, flange portions are provided at upper and lower ends thereof, and at least one of the flange portions is fixed to the motor or the bottom plate.

In another preferred embodiment of the disk cleaner according to the present invention, a lower housing and an upper housing adapted to be opened upward with a hinge member provided on the back side of the lower housing as a fulcrum. ,
Wherein the disk polishing chamber is formed between the top plate of the lower housing and the bottom plate of the upper housing, and the motor chamber is formed in the upper housing.

In another preferred embodiment, the polishing tool has a plurality of polishing tool holders, and the polishing tool held by the plurality of polishing tool holders is selectively brought into contact with the surface to be polished. To be released. In still another preferred aspect, when polishing the disk, the rotation axis of the polishing tool is disposed perpendicular to the surface to be polished, and the frictional force between the polishing tool and the surface to be polished, The disk is caused to rotate in one direction.

In a preferred embodiment of the disk cleaner according to the present invention having the above-described configuration, a barrel-like, for example, barrel-shaped, which can extend and contract in the direction along the rotation axis between the bottom plate of the motor chamber and the motor. A bellows-like cylindrical elastic body is provided so as to surround the output shaft and always seal the gap between the bottom plate and the motor. Specifically, when the polishing tool is separated from the surface to be polished of the disk (at the time of non-polishing), the cylindrical elastic body has, for example, an upper end portion (upper flange portion). A state in which the lower end (lower flange) is elastically pressed against the bottom plate, that is, the whole is slightly compressed, is fixed to the lower surface of the motor with an adhesive, a double-sided tape, or the like. In this state, it is interposed between the motor and the bottom plate.

When the disc is polished, the motor and the polishing tool are lowered vertically toward the surface to be polished by an elevating mechanism provided in the motor chamber (upper housing). Is pressed against the surface to be polished and rotated by the motor. At this time, the cylindrical elastic body is pressed by the motor and compressed in the height direction, and also functions as a cushion material when the motor is lowered most.

As described above, in the disk cleaner of the present invention, since the upper and lower ends of the cylindrical elastic body are always sealed without separating from the motor and the bottom plate, the disk is ground by the polishing. The shavings, abrasive powder, and the like that come out when polished with a tool are interposed between the shaft play insertion hole formed in the bottom plate of the motor chamber and the output shaft of the motor (the polishing tool holder). It is possible to effectively prevent the motor chamber from invading through the formed gap.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an appearance of a disk cleaner according to an embodiment of the present invention. The disk cleaner 10 of the illustrated embodiment is a disk cleaner for CDs, DVDs and the like.
As shown in FIG. 2, a lower housing 11 and hinge members 14, 1 provided on the back side of the lower housing 11, as shown in FIG.
The upper housing 12 which can be opened upward with the fulcrum 4 as a fulcrum (FIG. 2 shows the fully opened state).
The lower housing 11 has a semi-elliptical side peripheral plate 11 as can be clearly understood from FIGS.
A, bottom plate 11B, and top plate 11C having a trapezoidal concave portion
And an inner holding plate 11D. The upper housing 12 has a semi-elliptical side peripheral plate 12A,
B and a bottom plate 12C having an inverted trapezoidal concave portion.

Here, the upper plate 11C of the lower housing 11 and the bottom plate 12C of the upper housing 12
C, a disk polishing chamber 20S is formed, and a motor chamber 12S is formed in the upper housing 12. In the lower housing 11, a rotation shaft 25 is provided on the internal holding plate 11D via a holding sleeve.
Are held vertically, and a spindle 26 is screwed and fixed to the upper end of the rotating shaft 25. The spindle 26
Is made to protrude above the upper surface plate 11C, and the disc 1 is mounted on the spindle 26 via a table holding member 27 so that the recording surface (polished surface) 1A is on the non-recording surface (label surface) 1B. Substrate 2 placed in a state where it is placed down
A turntable 20 composed of a rubber plate 1 and a rubber plate 23 is mounted and fixed. Further, between the table holding member 27 and the rotary shaft 25, ball bearings 86 and 87 that can cope with thrust are arranged.

A predetermined number of slits are formed, for example, at equal angular intervals below the lower ball bearing 87 on the rotary shaft 25 to detect the number of rotations of the turntable 20. A plate 81 is arranged so as to be rotatable integrally, and a rotation detector 80 such as a Hall IC for detecting the number of rotations of the rotation detection disk 81 is provided on one side of the rotation detection disk 81.

A cylindrical spacer 84 and a fan drive wheel 90 are externally fitted to the rotation shaft 25 below the rotation detection disk 81, and the rotation detection disk 8
1. The cylindrical spacer 84 and the fan drive wheel 90 are fastened and fixed so as to rotate integrally with the rotary shaft 25 by a nut 85 screwed to the lower end of the rotary shaft 25.

Outer peripheral groove 9 of the fan drive wheel 90
An exterior 1 is provided with an elastic ring 92 made of an elastic material such as rubber in a state of being elastically fitted. Beside the fan drive wheel 90, the internal holding plate 11
The fan 1 rotatably supported by a support member 95 held by a mounting member 94 fixed to D via a pivot 94a.
00 is provided.

As will be described later, the fan 100 is for sucking and removing shavings of the disk D and abrasive powder, and the rotating shaft 101 has the elastic ring of the fan driving wheel 90 mounted thereon. A meshing portion 102 such as a serration tooth is formed such that the pressing force of a biasing spring 94b disposed around the pivot 94a presses the base 92 appropriately. Therefore, when the turntable 20 is rotated, the rotation driving force of the fan 100 is transmitted to the rotation shaft 101 via the rotation shaft 25 and the fan drive wheel 90, thereby being driven to rotate.

On the other hand, in the upper housing 12, four guide rods 41, 42, 43, and 44 are vertically disposed so as to bridge the top plate 12B and the bottom plate 12C. Of these guide rods 41 to 44,
The guide rods 41, 4 located on the left side in FIG.
2, a left sliding elevating member 31 including a geared motor 35A for rotationally driving a polishing tool 5A for scratching (rough cutting) described later is supported and guided slidably up and down, and is located on the right side in FIG. On the guide rods 43 and 44, a right sliding elevating member 32 including a geared motor 35B for rotating and driving a polishing tool 5B for polishing, which will be described later, is supported and guided slidably up and down.

The left sliding elevating member 31 includes, in addition to the geared motor 35A, a pair of sliding sleeves 37, 37 which are slidably fitted on the guide rods 41, 42, respectively. A left-side mounting plate 66 mounted to connect the sleeves 37, 37 to the geared motor 35A; a U-shaped left cam lift plate 67 mounted to the left-side mounting plate 66; And a polishing tool holder 50A that holds the scratch-removing polishing tool 5A disposed on the lower side.

On the other hand, the right side sliding elevating member 32 includes the guide rod 43,
44, a pair of sliding sleeves 37, 37 respectively slidably fitted to the outside, and these sliding sleeves 37, 3
7, a right-side mounting plate 68 mounted to connect the geared motor 35B, a U-shaped right cam lift plate 69 mounted on the right-side mounting plate 68, and a lower side of the geared motor 35B. A polishing tool holder 50B for holding the polishing tool 5B for polishing,
It has.

The geared motors 35A, 3A
5B, the output shafts 35a, 35a are projected downward from the lower end surface (front end surface) of the lower shaft 12a.
C is inserted into the disc polishing chamber (20S) through the circular shaft play insertion holes 12c, 12c formed in C. The polishing tool holder 50 is attached to the lower ends of the output shafts 35a, 35a.
The polishing tools 5A and 5B are attached via A and 50B.

Each of the polishing tool holders 50A, 5 provided on the left sliding elevating member 31 and the right sliding elevating member 32
0B has the same configuration, and as can be clearly understood with reference to FIGS.
A and 35B, a stepped connecting shaft 47 fixed to the output shaft 35a so as to be integrally rotated by a set screw 29, and the connecting shaft 47 is externally fitted to the connecting shaft 47 so as to be vertically slidable by spline fitting. Set screw 24 screwed into the lower part of 47
And a flange 55b connected to the lower end of the torso 55a. Part 55
a, and a coil spring 52 contracted between a stepped portion of the sliding shaft 5a and the upper stepped portion of the connecting shaft 47.
5 is constantly urged downward by the coil spring 52.

The polishing tool holders 50 arranged on the left and right sides
A, 50B, the collar-shaped portion 5 of the slide holder 55
On the lower surface side of the polishing tool holder 5A, a hollow cylindrical scratching polishing tool 5A and a polishing polishing tool 5B are respectively provided so that the rotation axes Oa and Ob of the polishing tool holders 50A and 50B are the center axes. It is detachably attached via an attachment 57 made of a hook-and-loop fastener or the like which is commercially available under the trade name Velocro.

The polishing tool 5A for polishing and the polishing tool 5B for polishing are attached with a polishing material for flaw removal (roughing) and a polishing material for polishing, respectively, and their rotation axes Oa and Ob are aligned with each other. , When polishing the disc 1
Are arranged perpendicular to the surface to be polished 1A, and their bottom surfaces 5C are pressed against the surface to be polished 1A. As can be clearly understood from FIG. Oa and Ob are arranged on a straight line passing through the rotation axis Oc of the turntable 20 on which the disk 1 is mounted and the rotating shaft 25 (the spindle 26), and the scratching polishing tool 5A and the The rotating diameters Ds and Dt of the polishing tool 5B are set larger than the radial width Ls of the recording area 1b to be polished on the recording surface (polished surface) 1A of the disk 1, and a part of the outer peripheral portion thereof. Are projected out of the non-recording area 1a located at the center of the disk 1 and the disk 1.

In the present embodiment, the polishing tool 5A and the polishing tool 5B are individually pressed against the polished surface 1A of the disk 1 so that the polishing tool 5A and the polishing tool 5B can be individually pressed. Tool holders 50A, 50
The cam-elevating mechanism 60 selectively moves the left sliding elevating member 31 and the right sliding elevating member 32 provided with B toward and away from the polished surface 1A.

As shown in FIGS. 4 and 5 in addition to FIG. 3, the cam type lifting mechanism 60 includes a selection dial 61 disposed on the right side surface of the upper housing 12.
An operation shaft 65 bridged in the left-right direction of the upper housing 12, the right end of which is connected to and fixed to the selection dial 61 so as to rotate integrally therewith; and the selection dial on the right end side of the operation shaft 65. 61
A click stop 62 mounted inside the upper housing 12 and an eccentrically attached and fixed eccentrically to the left side portion from the center of the operation shaft 65. The click stop 62 is attached to the left cam lift plate 67 of the left sliding lifting member 31. Left disk cam 7 whose lift surface (outer peripheral surface) is in sliding contact.
1 and a phase difference of 180 degrees with respect to the left disk cam 71, and is eccentrically attached to and fixed to the right side of the center of the operation shaft 65, and the right side cam lift plate 69 of the right side sliding elevating member 32 is fixed. And a right disc cam 72 whose lift surface (outer peripheral surface) is in sliding contact with the cam.

In the cam-type elevating mechanism 60, the left sliding elevating member 31 and the right sliding elevating member 32 are alternately lowered every time the selection dial 61 is turned by 180 degrees. Polishing tool holder 50A, 5
0B, the polishing tool 5A and the polishing tool 5B, which are held at 0B,
A alternately, and the selection dial 6
1 by adjusting the operation angle of the first sliding position, the lowering position of the left sliding lifting member 31 and the right sliding lifting member 32,
That is, the pressing force of the polishing tools 5A and 5B against the surface 1A to be polished of the disk 1 can be adjusted. FIG. 6 shows a state in which the polishing tool 5A is at the lowest position and the polishing tool 5B is at the highest position.

A handle 15 having a hook 15a for opening and closing the upper housing 12 is attached to a lower part of the front of the upper housing 12, and the hook 1 of the handle 15 is provided.
5a is adapted to bend inward and outward when the upper housing 12 is opened and closed.
The upper surface holding plate 11C is inserted into a locking hole 11a provided at the front end of the upper surface holding plate 11C and locked.
Also, as shown in FIG. 4, the lower housing 11 has a buffer-type locking member 79, 79 for locking the hinge members 14, 14 when the upper housing 12 is opened to the maximum, as shown in FIG. Is provided.

Further, an operation panel 19 is mounted on the outer peripheral front surface of the lower housing 11, and a start switch 16, an operation lamp 17, a timer dial 18 for setting a polishing time, and the like are arranged on the operation panel 19. ,Also,
As shown in FIG. 2, the upper housing 1 is provided at the left end of the upper surface holding plate 11C of the lower housing 11.
When the cover 2 is closed, a safety switch 75 is provided which is pressed by the bottom plate 12C to switch a power supply circuit (not shown) from an OFF state to an ON state. The disk cleaner 10 of the present embodiment includes the safety switch 75
Is not in the ON state, that is, the upper housing 12
The geared motors 35A and 35B do not start even if the start switch 16 is pressed unless the shutter is closed.

The upper plate 11C and the inner holding plate 11D of the lower housing 11 are provided on the lower housing 11 as shown in FIGS.
As can be understood from the above, the shavings and abrasive powder that come out when the disc 1 is polished with the polishing tool 5A and the polishing tool 5B are placed in the lower housing 11. Numerous outlets 13, 1 for discharging
Are formed in the lower housing 11, and the shavings and the powder of abrasives are discharged into the lower housings 11.
The fan 100 is provided for suction through the lower housing 1 and the lower housing 1 as shown in FIG.
On one side surface, an exhaust port 130 with a filter for collecting the shavings and abrasive powder in the air sucked by the fan 100 is provided.

In addition to the above configuration, in the disk cleaner 10 of the present embodiment, the motor chamber is inserted through the shaft play insertion holes 12c formed in the bottom plate 12C of the upper housing 12 (the motor chamber 12S). In order to prevent shavings and the like K (see FIG. 6) from entering the 12S, a height (as shown in FIG. 8) between the bottom plate 12C and the geared motors 35A and 35B, Extendable in the directions (along the rotation axes Oa, Ob, Oc);
A pair of barrel-shaped rubber (CR rubber) cylindrical elastic bodies 200, 200 having a central portion bulging in the radial direction are provided with the motor 3.
5A, 35B surrounding the output shafts 35a, 35a, the bottom plate 12C and the motors 35A, 35B.
Are always sealed.

Specifically, the cylindrical elastic body 200 is provided with large and small upper flange portions 210 and lower flange portions 220 at the upper and lower ends thereof, and the upper end portion (the upper flange portion). The portion 210) is fixed to the lower end portion (front end portion) of the motors 35A and 35B with an adhesive, a double-sided tape 230 or the like 230, and the lower end portion (the lower flange portion 220) is attached to the polishing tool 35A, 35B. Is the polished surface 1 of the disk 1
Even when being pressed by A (during polishing),
The motor 35 is slightly compressed so that the motor 35 is elastically pressed against the bottom plate 12C.
A, 35B and the bottom plate 12C.

When removing the scratches and dirt on the disk 1 by using the disk cleaner 10 of the present embodiment having such a configuration, the upper housing 12 is usually opened first (shown in FIG. 2). (State), the disc 1 is placed on the turntable 20 with its polished surface 1A facing up, and the upper housing 12 is closed. Then, in consideration of the presence / absence of scratches on the disc 1, the selection dial 61 is turned to select which of the scratching polisher 5A and the polishing polisher 5B is used for polishing (when there is no scratch due to dirt alone). Selects the polish polishing tool 5B), adjusts the pressing force of the polishing tool 5A or 5B against the disk 1, further sets the timer dial 18 appropriately and presses the start switch 16.

As a result, the polishing tool 5A or 5B selected by the selection dial 61 descends and is pressed against the surface 1A to be polished of the disk 1, and FIGS.
As shown in FIG. 5, the rotational axes O of the polishing tools 5A and 5B
In a state where a and Ob are arranged perpendicular to the surface to be polished (1A), the polishing tool 5A or 5B pressed against the surface to be polished 1A of the disk 1 rotates, and accordingly, The disc 1 is rotated by the frictional force between the polishing tool 5A or 5B and the polished surface 1A, and the polished surface 1A of the disc 1 is polished. The rotational driving force due to the frictional force between the turntable 20 and the turntable 20,
The rotation is transmitted to (the rotation shaft 101 of) the fan 100 via the rotation shaft 25 and the fan drive wheel 90, and the fan 100 is mechanically linked to the turntable 20 to be rotationally driven. As a result, shavings, abrasive powder, and the like are removed by suction from the upper surface holding plate 11C side.

Next, when the polishing tool to be used is changed from the scratching polishing tool 5A to the polishing polishing tool 5B, the above operation is repeated by turning the selection dial 61 about 180 degrees.
When the work of polishing the disk 1 is completed, the upper housing 12 is opened to take out the disk 1, and thereafter, the above operation is repeated.

As described above, in the disk cleaner 10 according to the present embodiment, the rotation axes Oa and Ob of the scratching polisher 5A and the polishing polisher 5B are aligned with the polished surface 1A during polishing. Because it is arranged vertically,
The contact of the polishing tools 5A, 5B with the polished surface 1A is made uniform. As a result, uneven wear is less likely to occur on the polishing tools 5A, 5B, and the polishing surface (bottom surface) 5C of the polishing tools 5A, 5B is reduced. The flatness is maintained, and the disk 1 hardly suffers from undulations and other problems.

The disk 1 is rotated by the frictional force between the polishing tools 5A and 5B and the surface 1A to be polished of the disk 1, so that the disk 1 (the turn on which the disk 1 is mounted) is rotated. As compared with a case where the table 20) is forcibly rotated by a motor or the like, the finish becomes finer and an excessive force is not applied to the disk 1, so that the disk 1 by the polishing tools 5A and 5B is not used. Can be prevented, and the polishing tools 5A and 5B are formed in a hollow cylindrical shape.
The force for rotating the disk 1 in the direction opposite to the predetermined rotation direction R due to the frictional force with the disk 5B can be reduced. In addition, since a motor or the like for rotating the disk 1 is not required, it is possible to suppress a rise in the temperature of the disk due to heat generated by the motor and the like, and to make the apparatus compact and reduce the apparatus cost. Can be

The disk 1 is provided with the polishing tool 5
A, a predetermined load for suppressing the rotation of the disk 1 due to a frictional force between the polished surface 1A and the polished surface 1A,
The fan 100 for sucking and removing shavings and abrasive powder of the disc 1 is mechanically linked to the turntable 20 on which the disc 1 is mounted, and is rotationally driven. The polishing tool 5A,
A required frictional force can be easily obtained between 5B and the polished surface 1A of the disk 1, and the polished surface of the disk 1 can be more effectively polished.

The two polishing tool holders 50
A and 50B are selectively brought into contact with and separated from the disk 1 by the cam type lifting mechanism 60, and the polishing tools 5A and 5B held by the polishing tool holders 50A and 50B, respectively. Polished surface 1A of the disk 1
When performing scratch removal and polishing on the disk 1, which of the polishing tool 5A for scratch removal and the polishing tool 5B for polishing is used. It is only necessary to select whether or not to press the disk 1, and it is not necessary to replace them. Therefore, handling becomes easy and convenience is improved.

Further, the pressing force of the polishing tools 5A, 5B against the polished surface 1A of the disk 1 can be adjusted by the cam type lifting mechanism 60, so that the polishing tools 5A, 5B can be adjusted. Even if it is worn or deformed by the polishing operation, a required pressing force can be applied to the polishing tools 5A and 5B, so that scratches and dirt can be properly removed.

Further, each of the polishing tools 5A and 5B is formed in a hollow cylindrical shape, and the bottom surface 5C of the polishing tools 5A and 5B is
, The pressing force or the like of each part of the polishing tools 5A and 5B against the disk 1 is easily equalized, and the polished surface 1 of the disk 1 is
A can be polished more evenly.

The rotational diameter D of the polishing tools 5A, 5B
Since s and Dt are larger than the radial width Ls of the region 1b to be polished on the surface 1A to be polished of the disk 1, the polishing tools 5A and 5B and / or the disk 1 The entire area to be polished on the polished surface 1A of the disk 1 can be polished without the need to move the disk 1 in the radial direction, and the structure and mechanism of the apparatus are simplified.

Further, since the polishing tools 5A and 5B are urged toward the disc 1 by the coil spring 52 during polishing, the polishing tools 5A and 5B are pressed against the disc 1 by the contact surfaces of the polishing tools 5A and 5B. The contact force is uniform,
The polished surface 1A of the disk 1 can be more evenly polished.

In addition to the above-described functions and effects, in the disk cleaner 10 of the present embodiment, a barrel-like cylindrical tube that can expand and contract in the height direction is provided between the bottom plate 12C of the motor chamber 12S and the motors 5A and 5B. An elastic body 200 surrounds the output shaft 35a of the motors 5A and 5B, and is fixed or pressed to the bottom plate 12C and the motors 35A and 35B so as to always seal between them. ing.

The cylindrical elastic body 200 is provided with the motor 3
5A and 35B and the polishing tools 5A and 5B are raised in the direction away from the polished surface 1A of the disk 1 during non-polishing, the polishing tool 5B side in FIGS. The upper and lower flanges 210 and 220 are fixed or pressed against the motor 35B and the bottom plate 12C in an extended state, and when the disk 1 is polished, , The motors 35A and 35B and the polishing tool 5
A and 5B are lowered, and the polishing tools 5A and 5B are pressed against the polished surface 1A of the disk 1. At this time, the cylindrical elastic body 200 is provided as shown in FIGS. Like the polishing tool 5A for roughing, it is pressed by the motor 35A so as to be compressed in the height direction, and the central portion thereof protrudes in the radial direction. The part 220 is provided with the motor 35B.
And, it is more firmly fixed or pressed against the bottom plate 12C, and also functions as a cushion material when the motor 5A descends most.

As described above, in the disk cleaner 10 of the present embodiment, the upper and lower end portions 210 of the tubular elastic body 200,
220 is the motor 35A, 35B and the bottom plate 1
Since the gap between them is always sealed without leaving from 2C, as shown in FIG. 6, shavings and abrasives that come out when the disc 1 is polished with the polishing tools 5A and 5B are removed. The powder K or the like is between the shaft play insertion holes 12c, 12c formed in the bottom plate 12C of the motor chamber 12S and the output shafts 35a (the polishing tool holders 50A, 50B) of the motors 35A, 35B. Intrusion into the motor chamber 12S through the formed gap can be effectively prevented.

As described above, one embodiment of the present invention has been described in detail. However, the present invention is not limited to the above-described embodiment, and may be designed without departing from the spirit of the invention described in the appended claims. , Various changes can be made. For example, the disk cleaner 10 of the embodiment is
A single-sided surface of a 5-inch disk such as a CD is polished, but the present invention is not limited to this. A disk polished to another disk of a different size such as a laser disk, or a disk polished to both sides. Also, those skilled in the art can easily apply the same technical idea.

[0055]

As will be understood from the above description, the disk cleaner according to the present invention is provided with the tubular elastic body so as to always seal between the motor and the bottom plate of the motor chamber. The shavings and abrasive powder that come out when the disc is polished with a polishing tool are moved between the shaft insertion hole formed in the bottom plate of the motor chamber and the output shaft of the motor (the polishing tool holder). Intrusion into the motor chamber through the formed gap can be effectively prevented. Further, the cylindrical elastic body also functions as a cushion material.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a disk cleaner according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where an upper housing of the disk cleaner shown in FIG. 1 is opened.

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1;

FIG. 5 is a sectional view taken along the line VV of FIG. 1;

FIG. 6 is an enlarged cross-sectional view around the polishing tool holder shown in FIG. 3;

FIG. 7 is a diagram showing an arrangement relationship between a polishing tool and a disk of the disk cleaner shown in FIG. 1;

FIG. 8 is a partially cutaway perspective view showing a cylindrical elastic body used in the disk cleaner shown in FIGS. 1 to 7;

[Explanation of symbols]

 Reference Signs List 1 disc (CD) 1A surface to be polished 5A polishing tool for scratching 5B polishing tool for polishing 10 disk cleaner 11 lower housing 11C upper plate 12 upper housing 12C bottom plate 12c shaft play insertion hole 12S motor room 14 hinge member 20 turntable 20S disk Polishing chamber 35A, 35B Geared motor 35a Output shaft 50A, 50B Polishing tool holder 200 Cylindrical elastic body 210 Upper flange 220 Lower flange Oa, Ob Rotation axis of polishing tool K Shavings, etc.

 ────────────────────────────────────────────────── ─── Continued on front page (72) Inventor Fumiki Tezuka 1-7-2 Suehirocho, Ome-shi, Tokyo F-term (reference) 3C058 AA06 AA18 AC05 CB06 DA17

Claims (7)

[Claims] 1. A disk polishing chamber (20S) in which a turntable (20) on which a disk (1) is placed is arranged.
And polishing tools (5A, 5B) for polishing the polished surface (1A) of the disk (1) are polishing tool holders (50A, 50A).
B), a motor room (1) in which motors (35A, 35B) attached to the output shaft (35a) are arranged.
2S) are defined side by side, and the motor (3
The output shaft (35a) of the disk polishing chamber (20) is formed through a shaft play insertion hole (12c, 12c) formed in the bottom plate (12C) of the motor chamber (12S).
In the disc cleaner (10) inserted into the S), in order to prevent shavings (K) from entering the motor chamber (12S) through the shaft play holes (12c, 12c), Surrounding the output shaft (35a), the polishing tool holders (50A, 50A, 50A, 50A, 35B) are always sealed between the bottom plate (12C) and the motors (35A, 35B).
0B) A disk cleaner characterized by comprising a tubular elastic body (200) made of rubber or the like which can expand and contract in a direction along the rotation axis (Oa, Ob). 2. It is assumed that the motors (35A, 35B) and the polishing tools (5A, 5B) are movable in a direction perpendicular to the polished surface (1A) of the disk (1). The disk cleaner according to claim 1, wherein: 3. The disk cleaner according to claim 1, wherein the cylindrical elastic body (200) has a barrel shape or a bellows shape. 4. The tubular elastic body (200) is provided with flanges (210, 220) at upper and lower ends thereof, and at least one of the flanges (210, 220) is provided with the motor (35A, 220). The disc cleaner according to any one of claims 1 to 3, wherein the disc cleaner is fixed to the bottom plate (35B) or the bottom plate (12C). 5. A lower housing (11) and an upper housing (11) which can be opened upward with a hinge member (14, 14) provided on the back side of the lower housing (11) as a fulcrum. 12), and the disk polishing chamber (20S) is formed between an upper surface plate (11C) of the lower housing (11) and the bottom plate (12C) of the upper housing (12). The disk cleaner according to any one of claims 1 to 3, wherein the motor chamber (12S) is formed in the upper housing (12). 6. A plurality of polishing tool holders (50A, 50B), and a plurality of said polishing tool holders (50A, 50B).
The polishing tool (5A, 5B) held at 0B) can be selectively brought into contact with or separated from the surface to be polished (1A). The disk cleaner according to any one of the above. 7. When polishing the disk (1), the rotation axes (Oa, Ob) of the polishing tools (5A, 5B) are
The disc (1) is arranged perpendicular to the surface to be polished (1A), and rotates the disk (1) in one direction by a frictional force between the polishing tool (5A, 5B) and the surface to be polished (1A). The disk cleaner according to any one of claims 1 to 6, wherein: