JPH0855369A - Repair device for disk body surface - Google Patents

Abstract

PURPOSE:To restore the surface of a disk body after polishing to a prescribed smooth surface by offcentering the extending direction of a pressurized contact surface of a main roll with respect to the radial direction of this disk body and setting the extending direction of the sliding contact surface of a wiper in the radial direction of the disk body. CONSTITUTION:This repair device has an arm 1 which attachably, detachably and rotatably holds the disk body D, the main roll 2 which has the pressurized contact surface to be brought into pressurized contact with the surface of the disk body D held at this arm 1 and is rotationally driven around its axial center and the wiper 3 which has the sliding contact surface to be brought into sliding contact with the surface of the disk body D held to the arm 1. The extending direction of the pressurized contact surface of the main roll 2 is offcentered from the radial direction of the disk body D and the extending direction of the sliding contact surface of the wiper 3 is set in the radial direction of the disk body D. Fine flaws are erased from the surface of the disk body D by polishing this surface by using a proper polishing material between the pressurized contact surface of the main roll 2 and the surface of the disk body D. In addition, the surface of the disk body D is restored to the smooth surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk body surface repairing device used for repairing scratches on the surface of a disk body such as a laser disk or a compact disk.

[0002]

2. Description of the Related Art In recent years, disc bodies such as laser discs and compact discs have been widely used as record carriers for voices and images. When using the disc bodies, dust or the like is attached to the surface thereof. And the surface is required to be kept smooth.

Therefore, the disc body after use is stored in a state in which the dust is removed from the surface thereof and then the disc body is inserted into the storage case or the like to protect the surface.

[0004] The removal of dust on the surface of the disc body has been conventionally performed by a manual wiping operation using cloth or the like, but since the distribution direction of the information tracks on the disc body is the circumferential direction. The wiping direction at the time of the wiping operation is the radial direction which is the radial direction of the disc body.

Therefore, it takes a lot of time to remove dust from the surface of the disc body.
There is a tendency that dust is not removed sufficiently.

On the other hand, if the disc body is repeatedly used or stored with dust left on the surface without sufficient dust removal, fine scratches are formed on the surface of the disc body.
The scratch may make it difficult to read the information track by the reproducing head.

Incidentally, the depth of the scratch that affects the reading is about 10 μm at the maximum, and when the depth is about 0.2 μm, the reading can be performed.

Therefore, it is said that the scratch formed on the surface of the disk body is repaired by so-called polishing, and this repairing work, that is, the polishing work of the surface of the disk body is carried out manually by using an appropriate polishing material. Moreover, it is supposed that it is performed in the radial direction of the disk body, similarly to the dust removal operation described above.

As the abrasive used at that time, there is, for example, a mixture of components in which a surface lubricant mainly composed of silicon and wax is mixed with a hydrocarbon solvent, an antistatic agent, abrasive grains and the like. .

However, among the disc bodies, the surface body of the laser disc is made of acrylic resin, and therefore a predetermined restoration is compared even in the manual polishing work using the above-mentioned abrasive. Easy to do,
Since the surface of the compact disc is made of polycarbonate resin, it is difficult to perform a predetermined repair by the manual polishing work using the above-mentioned abrasive.

In the past, in the case of compact discs, it has not been generally considered that the scratches formed on the surface should be repaired.

However, with a compact disc,
Nowadays, it is considered to be used as a record carrier in a computer, and therefore, when a scratch is formed on the surface of a compact disc, it cannot be left as it is.

The present invention was devised in view of the present situation as described above, and its purpose is to automatically and automatically create a disc body such as a laser disc or a compact disc without manual operation. The object of the present invention is not only to remove dust on the surface, but also to provide an apparatus for repairing the surface of the disk body, which is optimal for repairing scratches formed on the surface of the disk body.

[0014]

In order to achieve the above-mentioned object, the structure of the disk body surface repairing apparatus according to the present invention has an arm for holding the disk body detachably and rotatably, and an arm for holding the disk body. Wipe having a main roll that has a pressure contact surface that is in pressure contact with the surface of the disk body that is rotated and is driven to rotate about its axis, and a sliding contact surface that is in sliding contact with the surface of the disk body that is held by the arm. Has a body,
The extending direction of the pressure contact surface of the main roll is eccentric with respect to the radial direction of the disk body, and the extending direction of the sliding contact surface of the wiping body is the radial direction of the disk body.

More specifically, it is assumed that the main roll is formed of a fibrous composition in a columnar shape, and the cylindrical outer peripheral surface is set as a continuous pressure contact surface.

Further, the wiping member is made of a fiber composition and has a blade shape having a strip-shaped sliding contact surface, a roll shape having a cylindrical sliding contact surface, or a flat pad shape having a polygonal or circular sliding contact surface. It is assumed that it is formed in either one. Furthermore, it is assumed that the wiping body and the main roll are positioned on the opposite sides so as to sandwich the central portion of the disc body.

Further, it is preferable that the arm is formed so as to swing the disc body in the radial direction with a slight width.

It is assumed that a plurality of main rolls and wiping bodies are arranged so as to sandwich the disk body held by the arm from both sides.

[0019]

Therefore, the disk body can be attached to and detached from the arm when the arm is swinging out, and is held by the arm when the arm is in the so-called set state. The main roll can be pressed against the surface of the existing disk body and the wiping body can be slid on.

When the main roll is rotationally driven about its axis while the main roll is pressed against the surface of the disk body, the pressure contact surface of the main roll slides on the surface of the disk body. Ready to go.

The sliding of the main roll on the surface of the disk body forcibly rotates the disk body held by the arm. At this time, for example, dust adhering to the surface of the disk body is removed. It will be removed by the main roll.

At this time, since the length of the main roll is set to be larger than the radius of the disc body, the pressure contact surface of the main roll is combined with the rotation of the disc body so that the pressure contact surface of the main roll is the entire surface of the disc body. Therefore, the above-mentioned dust removal is evenly performed on the surface of the disk body.

When the main roll is driven to rotate, the surface of the disc can be polished by, for example, disposing an appropriate abrasive between the pressure contact surface of the main roll and the surface of the disc. By distributing a coating material instead of the above-mentioned abrasive material, the surface of the disk body is coated,
That is, it can be repaired.

When the main roll is rotationally driven, the extending direction of the pressure contact surface of the main roll is eccentric with respect to the radial direction of the disc body, and the disc body is forcibly rotated. The locus of pressure contact with the surface of the disc body of the main roll is in the radial direction of the disc body.

The pressure contact locus in the radial direction of the disk body is
Since it is orthogonal to the circumferential direction, which is the distribution direction of the information tracks on the disc body, and coincides with the arrangement direction of the reproduction head on the reproduction deck, there is no obstacle during reproduction.

The disc body is forcibly rotated by the rotational drive of the main roll, so that the wiping body slidingly in contact with the surface of the disc body slides relative to the disc body.

By the sliding of the wiping body, the surface of the rotating disk body is wiped by the wiping body. For example, in addition to the dust removal by the main roll, further dust removal is realized and the main roll is used. The polishing slag that may remain on the surface of the disk body due to the polishing is wiped off.

By disposing an appropriate abrasive or coating material between the sliding contact surface of the wiping member and the surface of the disk member, the surface of the disk member is polished or coated in addition to the main roll. You will get it.

At this time, since the extending direction of the sliding contact surface of the wiping member is the radial direction of the disk member, the sliding contact locus of the wiping member with respect to the disk member surface is the circumferential direction of the disk member.

Therefore, while the pressure contact locus by the main roll is expressed in the radial direction of the disc body which is one direction, the sliding contact locus by the wiping body is in the circumferential direction of the disc body, that is, in the direction orthogonal to the pressure contact locus. Therefore, the sliding contact locus of the wiping body tends to eliminate the unidirectionality of the pressure contact locus.

Therefore, for example, when the surface of the disc body is polished or coated by the main roll, the pressure contact locus of the main roll is expressed in the radial direction on the surface of the disc body, while the sliding contact locus of the wiping body is It is expressed in a direction orthogonal to the pressure contact locus, and the unidirectionality in the pressure contact locus is corrected.

Further, the main roll is formed of a fibrous composition into a columnar shape, and its cylindrical outer peripheral surface is set as a continuous pressure contact surface, and a drive shaft connected to a drive source is interposed at its shaft core portion. Since it is mounted, it can smoothly rotate the disk body by its rotational drive and can be replaced wholly or partially when it cannot perform a predetermined function due to dirt or wear. .

The wiping member is made of a fiber composition and has a blade shape having a strip-shaped sliding contact surface, a roll shape having a cylindrical sliding contact surface, or a flat pad shape having a polygonal or circular sliding contact surface. The wiping efficiency can be changed by appropriately selecting one formed in any of the above.

When the wiping member and the main roll are positioned on the opposite sides so as to sandwich the central portion of the disc body, the main roll and the wiping body function so as to fix the disc body against the arm.

Further, when the arm is formed so as to swing the disc body to a slight width in the radial direction, it is possible to avoid the concentration of the pressure contact locus by the main roll and the sliding contact locus by the wiping member. It is possible to avoid the heat generation phenomenon due to the pressure contact friction and the sliding contact friction in advance.

When a plurality of main rolls and wiping bodies are provided so as to sandwich the disk body held by the arms from both sides, that is, two main rolls and two wiping bodies are used to form the disk. When the body is arranged so as to be sandwiched from both sides, dust removal on both sides of the laser disk as a disk body and restoration on both sides of the laser disk can be performed simultaneously.

[0037]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a detailed description of a disk body surface repairing apparatus according to the present invention based on an illustrated embodiment.
As shown in FIG. 1, the disk body surface repairing apparatus comprises an arm 1, a main roll 2, and a wiping body 3.

The arm 1 has at its tip a holder 11 fitted into the central opening D1 (see FIG. 2) of the disc body D, and the disc body D can be attached and detached and rotated via the holder 11. It is formed so as to hold.

Although not shown, the arm 1 has its base end pivotally attached to an appropriate other portion, for example, a casing forming the present apparatus or a support shaft planted in the casing. The tip side, that is, the side having the holder 11 is formed so as to be swingable as shown by a virtual arrow 1a in the drawing.

In the illustrated example, the arm 1 is set so as to hold the disk body D horizontally and to swing the tip end side in the horizontal direction, that is, the so-called set state and its released state. However, as long as the holder 11 holds the disc body D in the fitted state, it may be swung in the vertical direction, and the disc body D may also be held in the vertical state. Is advantageous in that the plane area occupied when the arm 1 swings in the restoration device can be set small.

Although not shown, the arm 1 is provided with an operating rod and the like, and is formed so as to realize the so-called manual swing, that is, the set state and the released state described above. In this case, it is advantageous in that the equipment for swinging the arm 1 can be omitted.

Further, the arm 1 may be set so as to be slightly swung in the horizontal direction by an appropriate means when the disk body D is rotated in the set state shown in the drawing.

In this case, when the main roll 2 and the wiping member 3, which will be described later, are pressed against the surface of the disk body D and slidingly contacted with each other, the pressure contacted portion and the sliding contacted portion are slightly changed. .

As a result, it is possible to avoid the concentration of the pressure contact and the sliding contact by the main roll 2 and the wiping member 3, so that the so-called uneven pressure contact and the uneven sliding contact are not caused on the surface of the disc body D, and the pressure contact and the sliding contact are prevented. Disk body D due to centralization
This is advantageous in that it is possible to prevent the heat generation phenomenon on the surface of the.

The main roll 2 is formed so as to have a strip-shaped pressure contact surface 2a (see FIG. 2) which is in pressure contact with the surface of the disk body D held by the arm 1, and in the illustrated example. It is formed so as to have a cylindrical outer peripheral surface which is formed of a fibrous body in a cylindrical shape and forms a continuous pressure contact surface 2a.

Further, the main roll 2 is placed in a so-called horizontal position so as to be rotationally driven about its axis, that is, the axis is connected to a drive source (not shown). The drive shaft 21 is also formed so as to be separably inserted.

In the illustrated example, the main roll 2 is in the diametrical direction in which the extending direction of the pressure contact surface 2a, that is, the extending direction of the axis is the left-right direction in the plan view of the disk body D. It is supposed to be eccentric (see FIG. 2).

Therefore, when the main roll 2 is rotationally driven with the pressure contact surface 2a being in pressure contact with the surface of the disk body D, the main roll 2 rubs the surface of the disk body D with the pressure contact surface 2a. A predetermined wiping action will be performed.

Further, the main roll 2 also rotates the disc body D in the horizontal direction by the rotation drive thereof.

As a result, when the main roll 2 is driven to rotate,
Since the surface of the disk body D is wiped in a pressure contact tendency and the disk body D is rotated, the wiping action is evenly performed over the entire surface of the disk body D.

The pressure contact locus at that time is expressed in the radial direction of the disk body D in the illustrated example.

That is, as shown in FIG. 2, the pressure contact surface 2a is
The wiping direction of the main roll 2 at an arbitrary point D2 on the surface of the disc body D with which the press contact is made is the direction G1 in which the press contact surface 2a is about to move due to the rotation drive of the main roll 2 and the disc body due to the rotation drive of the main roll 2. Direction G2 in which D moves
And the resultant force direction G3.

The resultant force direction G3 is the radial direction of the disc body D, that is, the radial direction of the disc body D. Therefore, the pressure contact locus appearing on the surface of the disc body D is the information track on the disc body D (see FIG. A reproducing head (not shown) in the reproducing deck, which is exposed in a state orthogonal to the circumferential direction, which is the distribution direction of (not shown).
Will be the same as the arrangement direction of, and this will not be an obstacle.

When the pressure contact surface 2a of the main roll 2 is pressed against the surface of the disc body D, the tip end of the pressure contact surface 2a, which is the left end in the figure, of the disc body D is, as shown in FIG. It is positioned so as not to come into contact with the central portion D3, and care is taken so that the central portion D3 is not worn or the like.

When the pressure contact surface 2a of the main roll 2 is pressed against the surface of the disk body D, the left end of the pressure contact surface 2a in the figure is a flat surface of the disk body D as shown in FIG. It is preferably positioned so as to slightly project from the center line D4 which is the vertical direction in the visual sense. In this case, the pressure contact surface 2a of the main roll 2 is uniformly pressed against the surface of the disk body D. It will be.

Incidentally, the main roll 2 in this embodiment is formed by stacking so-called buffs in multiple layers to form a columnar shape. A large number of circular cloths cut so as to have an opening for inserting 21 are laminated to have an appropriate thickness, and for example, a fixed portion is formed by sewing a sewing machine from its central portion toward the outer peripheral side. The outer peripheral side is left as an appropriate width as a non-sewn portion, and the outer peripheral surface of the non-sewn portion is formed as a soft pressure contact surface 2a.

When the main roll 2 is formed, that is, when the buffs are laminated in multiple layers to form a cylindrical shape,
A spacer (not shown) may be appropriately interposed between the buffs. In this case, the softness of the cylindrical outer peripheral surface of the main roll 2 can be adjusted appropriately.

In the illustrated example, the main roll 2 is supposed to be detachably held by the drive shaft 21, but this is because the outer peripheral surface of the cylinder serving as the pressure contact surface 2a is worn or soiled. And when it can no longer function effectively,
This is to enable the exchange.

Therefore, instead of the main roll 2 being separably held by the drive shaft 21 as in the illustrated example, the main roll 2 is constructed integrally with the drive shaft 21, and therefore the main roll 2 is formed. 2 may be configured to be replaced together with the drive shaft 21, and in this case, it is advantageous in that only the attaching / detaching operation of the drive shaft 21 with respect to the drive source is sufficient.

Further, although not shown, the main roll 2 has a pipe material previously inserted through its shaft core portion, and is constructed so that the drive shaft 21 can be easily inserted through the pipe material as a guide hole. Yes, in this case, the main roll 2
This is advantageous in that the attachment / detachment operation to / from the drive shaft 21 is facilitated.

Further, although not shown, the main roll 2 spreads a wiping member formed into a sheet shape such as napped fibers or felt on a cylindrical outer peripheral surface of a core body formed of an aluminum material or the like in a closed cylinder. Then, the opening may be opened in the shaft core portion of the core body so that the drive shaft can be inserted therethrough,
In this case, it is advantageous in that the main roll 2 can be formed lightweight.

The wiping member 3 is formed so as to have a strip-shaped sliding contact surface 3a (see FIG. 2) which is in sliding contact with the surface of the disk member D held by the arm 1. In the illustrated example, The fiber composition is formed into a blade shape.

The upper end of the wiping member 3 has a holder 31.
It is held adjacent to the surface of the disk body D by being set to move to the surface side of the disk body D, that is, set to be lowered in the illustrated example. 31 is positioned at a predetermined position by an appropriate means.

The wiping member 3 has the sliding contact surface 3 in the illustrated example.
The arrangement state is set so that the extending direction of a coincides with the diametrical direction which is the left-right direction in a plan view of the disc body D, that is, the radial direction of the disc body D.

Therefore, when the sliding contact surface 3a of the wiping member 3 is in sliding contact with the surface of the rotating disk member D,
The sliding contact surface 3a is in a state of moving on the surface of the disk body D, and therefore the surface of the disk body D is wiped.

Then, the wiping member 3 is the disc member D.
In the illustrated example, the sliding contact locus with respect to the surface of the disk is expressed in the circumferential direction of the disk body D, as indicated by the dashed arrow in FIG.

That is, as shown in FIG. 2, the sliding contact surface 3a is formed.
The wiping direction of the wiping body 3 at an arbitrary point D5 on the surface of the disk body D with which the sliding contact is, as shown by a solid arrow in FIG.
The direction is orthogonal to the radial direction of the disc body D.

This orthogonal direction is the circumferential direction of the disk body D because the disk body D is rotating, and the pressure contact locus by the main roll 2 is expressed in one direction which is the radial direction of the disk body D. On the other hand, so to speak, the sliding contact locus is expressed in the direction in which this is corrected.

As a result, the disposition of the wiping body 3 eliminates the unidirectionality of the pressure contact locus by the main roll 2, and the so-called uneven pressure contact by the main roll 2 on the surface of the disk body D is eliminated. become.

In the illustrated example, the wiping member 3 is arranged to be a so-called fixing type, but instead of this, as shown by an imaginary line arrow 3b in FIG. May be set to be movable in the diametrical direction which is the left-right direction in the plan view of the disk body D, which is the extending direction of the disk body D. In this case, the so-called sliding contact of the wiping body 3 on the surface of the disk body D in the circumferential direction is performed. The unevenness will be eliminated.

Further, in the illustrated example, the wiping body 3 is arranged so as to face the main roll 2 so as to sandwich the central portion D3 of the disk body D, so that the arm 1 together with the main roll 2 is disposed. The disk body D is pressed against the disk 1, and the disk body D functions to be held by the arm 1 in a stable state.

Therefore, in the restoration device of this embodiment formed as described above, by swinging the arm 1,
The disc body D can be attached to and detached from the arm 1, and the main roll 2 can be pressed against the surface of the disc body D and the wiping body 3 can be slid on.

Then, when the main roll 2 is rotationally driven around the axis of the main roll 2 in pressure contact with the surface of the disc body D, the main roll 2 slides on the surface of the disc body D in the pressure contact state. .

As a result, the surface of the disc body D is wiped by the main roll 2 to remove dust adhering thereto, and the disc body D is forcibly rotated.

Therefore, the length of the main roll 2 is equal to the disc body D.
By setting the radius to be larger than the radius of .circleincircle., The dust removal on the surface of the disc body D is evenly performed in cooperation with the rotation of the disc body D.

At this time, since the main roll 2 is eccentric with respect to the diametrical direction in which the pressing surface 2a extends in the left-right direction in plan view of the disk body D, the main roll 2
The wiping direction of the surface of the disc body D by
In the radial direction, that is, the radial direction in the disk body D.

As a result, the wiping trace of the main roll 2, that is, the pressure contact locus is orthogonal to the circumferential direction in which the information tracks are distributed on the disc body D, and the audio and video recorded on the disc body D are reproduced. This is the same as the arrangement direction of the reproducing head in the case of, and this does not become an obstacle during reproduction.

Then, by disposing an appropriate abrasive between the pressure contact surface 2a of the main roll 2 and the surface of the disc body D, or by changing the composition of the main roll 2,
The surface of the disc body D can be polished.

By distributing an appropriate coating material instead of the above-mentioned abrasive material, it becomes possible to form a coating film on the surface of the disk body D, that is, to perform coating.

When the repairing device is constructed so as to be able to swing the arm 1 in the horizontal direction with a slight width, the main roll 2 and the wiping member 3 are pressed against the surface of the disk body D. Also, it is possible to avoid the concentration of the sliding contact, so that the so-called uneven pressure contact and uneven sliding contact on the surface of the disk body D are not caused, and the heat generation phenomenon on the surface of the disk body D due to the concentration of the pressure contact and the sliding contact is not caused. Will be possible.

On the other hand, since the wiping body 3 is slidably in contact with the surface of the disc body D together with the main roll 2, when the disc body D is rotated by the rotation drive of the main roll 2, the wiping body 3 is wiped. The surface is also wiped by the wiping body 3.

Therefore, the wiping body 3 has a further wiping action in addition to the wiping action by the main roll 2, and for example, the dust removal on the surface of the disc body D by the main roll 2 is more effective. Will be.

At this time, in the wiping body 3, the extending direction of the sliding contact surface 3a coincides with the diametrical direction which is the left-right direction in the plan view of the disc body D, that is, the radial direction of the disc body D. Therefore, the wiping trace, that is, the sliding contact locus is in the circumferential direction of the disc body D.

As a result, the wiping body 3 shows the pressure contact locus by the main roll 2 in one direction, which is the radial direction of the disc body D, while the so-called wiping body 3 shows the sliding contact locus in the direction in which it is corrected. Therefore, the unidirectionality of the pressure contact locus by the main roll 2 is eliminated, and so-called uneven pressure contact by the main roll 2 on the surface of the disk body D is eliminated.

Then, an appropriate abrasive material is distributed between the sliding contact surface 3a of the wiping member 3 and the surface of the disk member D,
Alternatively, by changing the composition of the wiping body 3, further polishing can be realized in addition to the polishing of the surface of the disk body D by the main roll 2, and so-called uniform polishing can be realized. Become.

Further, when the wiping body 3 is simultaneously brought into sliding contact with the surface of the disk body D at the time of coating by the main roll 2, the unidirectionality of the pressure contact locus by the main roll 2 is corrected, and accordingly, Therefore, a so-called uniform coating can be realized.

In the illustrated example, the wiping member 3 is set so as to be disposed on the opposite side of the main roll 2 with the central portion D3 of the disc member D interposed therebetween.

As a result, the disk body D held by the holder 11 of the arm 1 is held by the main roll 2 in the holder 1
1 is pressed against the holder 1 by the wiping body 3
Therefore, the disk body D is pressed against the disk 1, and the disk body D is not separated from the holder 11 of the arm 1 and drops.

FIG. 3 shows another embodiment of the disk body surface repairing apparatus according to the present invention. The wiping body 3 in this embodiment, like the main roll 2, has a sliding contact surface 3a. (See FIG. 2) is assumed to be formed in a roll shape having a cylindrical outer peripheral surface in a continuous form.

The wiping member 3 is held by the drive shaft 32 inserted through the shaft core portion thereof, like the main roll 2, and is rotationally driven through the drive shaft 32. .

In the case of this embodiment, it is necessary to dispose a drive source for rotationally driving the wiping body 3 in addition to the drive source for the main roll 2, or the drive shaft 32 is not Either measure of connecting to the drive source for the roll 2 is indispensable.

However, in the case of this embodiment, the blade-shaped wiping member 3 of the embodiment shown in FIG.
As compared with the above case, the effective sliding contact surface 3a is significantly increased, which is advantageous in that a wiping action for a long period can be expected.

Even in this embodiment, it is preferable that the tip of the wiping body 3, which is the right end in the figure, is set so as not to contact the central portion D3 of the disc body D.

FIG. 4 shows still another embodiment of the disk body surface repairing apparatus according to the present invention. The wiping body 3 in this embodiment has a circular sliding contact surface (not shown).
It is supposed to be formed in the shape of a flat pad made of a buff that has

The wiping body 3 has a drive shaft 33 which is continuously provided in the center of the wiping body 3 and which is vertically arranged with respect to the surface of the disk body D. The drive shaft 33 is an appropriate means. It is set to be so-called horizontal rotation by being rotationally driven by.

Further, the wiping body 3 is set so as to be movable in the diametrical direction which is the left-right direction in the plan view of the disc body D, that is, the radial direction of the disc body D, as indicated by the solid arrow 3c in the figure. It is supposed to be done.

Therefore, in the case of this embodiment, the sliding contact locus of the wiping body 3 with respect to the surface of the disc body D is basically in the circumferential direction of the disc body D, while the wiping body 3 moves. In the radial direction of the disc body D, like the main roll 2,
Further, it is also expressed in multiple directions that are inclined in a polygonal manner, and in comparison with the embodiment of FIGS. 2 and 3, the sliding contact in which so-called unidirectionality due to the main roll 2 is almost eliminated. It is advantageous in that it will be expressed as a trajectory.

Further, in the case of this embodiment, the buff forming the wiping body 3 is sufficient by diverting the circular buff forming the main roll 2, and the embodiment shown in FIG. 2 and FIG. In comparison with the above, since the so-called wiping body 3 having a different structure is not provided, it is advantageous in that the so-called consumable item number does not have to be increased.

The buff may have a polygonal shape such as an octagon or a hexagon, instead of the circular shape.

Although not shown, a plurality of main rolls 2 and wiping bodies 3 are respectively arranged so as to sandwich the disk body D from both sides, that is, two main rolls 2 and two wiping bodies. The body 3 may be provided, and the disk body D may be arranged so as to sandwich the disk body D from both sides.

In this case, the main roll 2 pressed against the back side of the disc body D is rotationally driven in the opposite direction to the main roll 2 pressed against the front side of the disc body D with the disc body D sandwiched therebetween. Of course.

In the case of this embodiment, there is an effect when the laser disk is selected as the disk body D, and the dust removal and repair on both sides of the disk body D can be simultaneously executed without so-called inside out operation. Is advantageous in that

Further, according to this embodiment, since the main rolls 2 are adjacent to each other on both sides of the disc body D in a pressure contact tendency, the rotation of the disc body D by the rotation drive of the main roll 2 is more reliably performed. It is also advantageous in that respect.

In the above-described embodiment, the arm 1 is slightly swung in the so-called set state to avoid concentration of pressure contact and sliding contact of the main roll 2 and the wiping member 3 with respect to the surface of the disc member D. Although it may be set as follows,
Instead of this, the main roll 2 and the wiping body 3 may be set back and forth along the axial direction by a slight width so as to avoid the concentration of the pressure contact and the sliding contact.

In the above description, the restoration device according to the present invention is provided as a so-called single unit. However, according to the configuration of the present invention, the restoration device is different from other devices. For example, it may be set so as to constitute a device that reproduces audio and video recorded on the disc body D, or a part of a device that stores the disc body D.

[0106]

As described above, according to the present invention, it is possible to wipe the surface of the disk body by swinging the arm holding the disk body and setting it in a so-called set state. Since the pressing locus as the wiping trace by the pressing surface of the main roll is expressed in the radial direction on the surface of the disc body, the pressing locus is orthogonal to the circumferential direction which is the distribution direction of the information track on the disc body, Since it corresponds to the direction in which the reproducing head is arranged on the reproducing deck, it does not hinder the reproduction of the audio and video recorded on the disc body.

As a result, by disposing an appropriate abrasive between the pressure contact surface of the main roll and the surface of the disc body, the surface of the disc body can be polished to eliminate fine scratches, and the pressure contact surface of the main roll can be erased. By distributing an appropriate coating material between the surface of the disk body and the surface of the disk body, there is an advantage that the surface of the disk body after polishing can be restored to a predetermined smooth surface, that is, restoration can be performed.

Further, according to the present invention, the wiping body is further brought into sliding contact with the surface of the disk body rotated by the rotation drive of the main roll, so that in addition to the wiping with the main roll, further wiping with the wiping body is possible. At the same time, the sliding contact locus as the wiping trace of the wiping body is expressed in the circumferential direction on the surface of the disc body by the rotation of the disc body, and the unidirectionality of the pressure contact locus by the main roll is corrected.

As a result, the occurrence of so-called uneven pressure contact due to the pressure contact of the main roll is prevented in advance, and the wiping efficiency of the wiping member is improved by appropriately selecting the configuration of the wiping member. It is possible to efficiently correct the one-way property of the pressure contact locus, and there is an advantage that the above-mentioned restoration of the surface of the disk body is efficiently realized.

Further, according to the present invention, since the main roll, which is adjacent to the surface of the disc body in a pressure contact tendency, is rotated, not only the predetermined dust removal but also the rotation of the disc body is possible. There is no need to separately equip a device for rotating the disc body, and there is an advantage that the weight of the entire apparatus can be reduced and the cost can be reduced by reducing the number of parts.

Further, according to the present invention, when the main roll and the wiping member are positioned on the opposite sides so as to sandwich the central portion of the disc member, the wiping member and the main roll are fixed to the mode of pressing the disc member to the arm. Therefore, there is an advantage that the problem that the disc body is separated from the arm is prevented in advance.

Further, according to the present invention, when the arm is formed so as to slightly swing the disk body in the radial direction, the pressure contact locus by the main roll and the sliding contact locus by the wiping body are concentrated. There is an advantage that it is possible to avoid the heat generation phenomenon due to the pressure contact friction and the sliding contact friction in advance.

Furthermore, according to the present invention, when a plurality of main rolls and wiping bodies are provided so as to sandwich the disc body from both sides, an effect is obtained when a laser disc is selected as the disc body. However, there is an advantage that the dust removal and restoration on both sides of the surface can be realized simultaneously without the so-called turning operation.

Furthermore, according to the present invention, it is of course possible to use this as a single unit, and it is also possible to form it as a part of other devices, and it is possible to expect an improvement in its versatility. is there.

[Brief description of drawings]

FIG. 1 is a partial plan view showing a main part of a disk body surface repairing apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of the disc body showing the positional relationship between the pressure contact surface of the main roll and the sliding contact surface of the wiping body with respect to the surface of the disc body.

3 is a plan view showing a disk body surface repairing apparatus according to another embodiment of the present invention, similar to FIG.

FIG. 4 is a plan view showing a disk body surface repairing apparatus according to still another embodiment of the present invention, similar to FIG.

[Explanation of symbols]

 1 Arm 2 Main Roll 2a Pressure Contact Surface 3 Wiping Body 3a Sliding Contact Surface D Disk Body

Claims (6)

[Claims] 1. A main roll which has an arm for holding a disk body detachably and rotatably and a pressure contact surface which is in pressure contact with the surface of the disk body held by the arm and which is rotationally driven about its axis. And a wiping body having a sliding contact surface that is in sliding contact with the surface of the disk body held by the arm, and the extending direction of the pressure contact surface of the main roll is relative to the radial direction of the disk body. A disk body surface repairing device which is eccentric and whose sliding contact surface of the wiping body extends in the radial direction of the disk body. 2. The apparatus for repairing a disk body surface according to claim 1, wherein the main roll is formed of a fibrous composition into a cylindrical shape, and the cylindrical outer peripheral surface is set as a continuous pressure contact surface. 3. The wiping body is made of a fiber composition and has a blade shape having a strip-shaped sliding contact surface, a roll shape having a cylindrical sliding contact surface, or a flat pad shape having a polygonal or circular sliding contact surface. 2. The disk body surface repairing device according to claim 1, wherein 4. The apparatus for repairing the surface of a disk body according to claim 1, wherein the wiping body and the main roll are positioned on opposite sides of each other so as to sandwich the central portion of the disk body. 5. An apparatus for repairing a disk body surface according to claim 1, wherein the arm is formed so as to swing the disk body in the radial direction by a small width. 6. The apparatus for repairing the surface of a disk body according to claim 1, wherein a plurality of main rolls and wiping bodies are provided so as to sandwich the disk body held by the arm from both sides.