JPH08111079A - Repairing device for disk plate surface - Google Patents

Abstract

PURPOSE: To automatically repair flaws formed on the surface of a disk plate of an LD, CD, etc., by setting a swing arm in such a manner that this arm can be brought near to or further from a roll body by an operation to adjust a supporting mechanism. CONSTITUTION: The base end of the swing arm 1 of the supporting mechanism 3 is pushed downward by the energizing force of a spring 33 and is eventually brought near to a base plate B when an adjusting screw 36 is screwed down. Consequently, the front end of the swing arm 1, i.e., receiving base 4, is brought near to the upper roll body 2. Conversely, the base end of the swing arm 1 is pushed upward by the energizing force of the spring 33 and is eventually brought near to the base plate B when the adjusting screw 35 is unscrewed. Consequently, the front end of the swing arm 1, i.e., the receiving base 4, is brought near to the roll body 2. Then, the bringing of the disk plate D near to or further from the roll body 2 is made possible and the pressurizing contact force of the disk plate with the roll body 2 is changeable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc surface for use in repairing scratches on the surface of a disc such as a laser disc (hereinafter abbreviated as LD) and a compact disc (hereinafter abbreviated as CD). Repair device.

[0002]

2. Description of the Related Art In recent years, disk discs such as LDs and CDs have come to be widely used as record carriers for audio and video. When using the disc discs, dust or the like is attached to the surface thereof. And it is required that the surface be kept smooth.

For this reason, after use, the disc board is stored in a state in which dust and the like are removed from the surface thereof and then the disc board is inserted into a storage case to protect the surface.

The removal of dust and the like from the surface of the disc disk has been conventionally done manually by using cloth or the like. However, the distribution direction of the information tracks on the disk disk is the circumferential direction. Therefore, the wiping direction at the time of the wiping operation is the direction intersecting the distribution direction of the information tracks, that is, the radial direction which is the radial direction on the disc board.

On the other hand, when the disc is repeatedly used or stored with dust left on the surface, fine scratches may be formed on the surface of the disc. Particularly, the scratches are formed in the circumferential direction. In some cases, it may be difficult for the reproducing head to read the information track.

Therefore, it is said that the circumferential scratches formed on the surface of the disk board are repaired by polishing or the like. For this repair work, that is, the polishing work of the disk board surface, an appropriate abrasive material is used. It is supposed to be carried out manually by the above, and as mentioned above, in the radial direction of the disk.

However, among the discs, the LD is
Since the surface body is made of acrylic resin, predetermined polishing can be performed relatively easily even by manual polishing work in which an appropriate polishing material is used in combination.
Since the surface body is made of a polycarbonate resin, the polishing work by the above method cannot easily carry out a predetermined polishing.

Not only the CD has so far,
When a scratch was formed on the surface, there was no general idea to repair it.

However, in the case of a CD, it is considered that the CD is used as a record carrier in a computer today. Therefore, when a scratch is formed on the surface of the CD, it is left as it is. Will not go.

The present invention was devised in view of the present situation as described above, and its purpose is to automatically and automatically set the surface of a disc board such as an LD or a CD without manual operation. It is an object of the present invention to provide an apparatus for repairing a surface of a disc that is most suitable for repairing a scratch formed.

[0011]

In order to achieve the above-mentioned object, the structure of the disk disk surface repairing apparatus according to the present invention is as follows. First, the base end is rotatably connected to the base and the disk is attached to the front end. A swing arm that rotatably supports a pedestal that holds the disk detachably, and a pressure contact surface that is pressed against the surface of the disk disk that is disposed on the base and is held by the pedestal And a rotatively driven roll body, and the base end of the swing arm is rotatably connected to the base through a support mechanism disposed on the base, and the swing operation is performed by adjusting operation of the support mechanism. It is assumed that the arm is set to approach the roll body.

Secondly, a swing arm having a base rotatably connected to the base and rotatably having a pedestal for detachably holding a disc at the tip, and a swing arm provided on the base. And a roll body that has a pressure contact surface that is in pressure contact with the surface of the held disc disk and that is driven to rotate about its axis, and the pedestal integrally houses the disk disk. A circular concave portion to be mounted, and a flange portion that is adjacent to the outer periphery of the circular concave portion and is formed in an annular shape with an appropriate width,
It is assumed that the surface of the flange portion is set to be flush with the surface of the disc disk housed in the circular recess.

Thirdly, a swing arm having a base rotatably connected to the base and rotatably having a pedestal for detachably holding a disk disk at the tip, and a swing arm provided on the base and attached to the pedestal. And a roll body that has a pressure contact surface that is in pressure contact with the surface of the held disc and that rotates around its axis, and the swing arm tends to reduce the rotation speed of the pedestal. It is assumed to have a control mechanism for controlling.

More specifically, it is assumed that the roll body is formed of a fibrous composition into a columnar shape, and the cylindrical outer peripheral surface is set as a continuous pressure contact surface. In the restoration device, it is assumed that the pressure contact surface is set to be in pressure contact with the surface of the flange portion of the pedestal.

Further, it is preferable that the swing arm is formed so as to swing the pedestal at the tip end slightly in the substantially radial direction.

[0016]

Therefore, when the swing arm is so-called outside and is in an offset state, the disc board can be attached to and detached from the pedestal of the swing arm, and the swing arm is so-called inside and set. At a certain time, it becomes possible to press the pressure contact surface of the roll body to the surface of the disk body that is integrally held by the pedestal.

The roll body slides on the surface of the disk body by the rotational drive about the axis of the roll body while the pressure contact surface is in pressure contact with the surface of the disk body.

At this time, when the roll body is formed of a fiber composition such as a buff or a non-woven fabric into a columnar shape, its cylindrical outer peripheral surface is set as a continuous pressure contact surface.

By the sliding of the roll body with respect to the surface of the disk board, the disk board held on the pedestal of the swing arm is forcibly or automatically rotated, and the rotation speed at that time is adjusted by the support mechanism. The speed is adjusted to be slower by the operation.

That is, when the swing arm is brought closer to the roll body by the adjusting operation of the supporting mechanism, the pressure contact surface of the roll body tends to be strongly pressed against the surface of the disc board, and the swing arm is moved by the adjusting operation. When moving away from, the pressure contact surface of the roll body tends to be weakly pressed against the surface of the disk.

The rotational speed at the time of forcible rotation of the disk by the rotational drive of the roll body described above is also reduced by the control operation of the control mechanism provided on the swing arm.

That is, in the control operation of the control mechanism, the rotation speed of the disc board is immediately adjusted to be slowed down, and the press-contact time of the press-contact surface of the roll body per unit area of the disk board surface becomes long. .

On the other hand, when the length of the roll body is appropriately selected, sliding of the roll body with respect to the surface of the disc board causes the press contact surface of the roll body to be an effective surface of the disc board in combination with the rotation of the disc board. It is crimped evenly.

When the roll body is driven to rotate, an appropriate abrasive material is distributed between the pressure contact surface of the roll body and the surface of the disc board so that the surface of the disc board can be polished and the above-mentioned abrasive material can be used. In place of the above, by distributing a finishing material, the surface of the disc board can be finished and polished.

At this time, by changing the pressure contact force of the roll body with respect to the disk board by adjusting operation in the support mechanism, and by controlling operation in the control mechanism, the rotation speed of the cradle holding the disk board is controlled to be low. By doing so, the polishing efficiency can be improved.

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

The pressure contact locus in the radial direction of the disk is
This is orthogonal to the circumferential direction, which is the distribution direction of the information tracks on the disc board, and also coincides with the arrangement direction of the reproduction head on the reproduction deck, which does not hinder the reproduction.

When the press contact surface of the roll body is pressed against the surface of the disk board, the pedestal has a circular recess for accommodating the disk board integrally and is provided adjacent to the outer periphery of the circular recess with an appropriate width. In the case where the flange portion is formed in an annular shape and the surface of the flange portion is set to be flush with the surface of the disc disk housed in the circular recess, the roll body is pressed against the roll body. The radius of the disc that is used is apparently longer.

Therefore, the position where the rotation speed of the roll body and the rotation speed of the disc board match is moved to the outer circumference side of the disc board, and as a result, the rotation speed on the inner circumference side of the disc board is changed. The rotation speed of the body becomes slower, and the pressure contact efficiency of the roll body on the surface of the disk, which is the inner peripheral side, that is, the polishing efficiency is improved.

When the swing arm is formed so as to swing the disc disk slightly in the radial direction, the pressure contact locus is prevented from being concentrated by the roll body, and for example, a heat generation phenomenon due to pressure contact friction is caused. Can be avoided in advance.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk disk surface repairing apparatus according to the present invention will be described in detail below with reference to an illustrated embodiment.
As shown in FIGS. 1 and 2, the disk disk surface repairing device comprises a swing arm 1 and a roll body 2.

The swing arm 1 is rotatable at its base end on the base B under the support mechanism 3, that is, in the illustrated example,
A pedestal 4 that is rotatably connected in the horizontal direction and that detachably holds a disc D (see FIG. 1) at its tip is rotatably provided under the control mechanism 5, that is, in the illustrated example, It has a rotatability in a horizontal direction.

The swing arm 1 is, as shown in the figure,
It is sufficient if the tip end is in a set state when it is swung inward, and is in an offset state when it is swung outward, as shown in a virtual diagram in FIG. 1. An arbitrary shape may be selected for the shape, particularly the shape in plan view.

Further, in the illustrated example, the swing arm 1 is set so as to hold the disk disk D horizontally and to swing the disk disk D in the horizontal direction, but the pedestal 4 is fixed. As long as the disc disc D is held in this state, the swing arm 1 may be vertically swung and the disc disc D may be held in a so-called upright state. In this case, in the restoration device, This is advantageous in that the plane area occupied when the swing arm 1 swings can be set small.

In the illustrated example, the swing arm 1 has an operating rod portion 11 (see FIG. 1) on the tip side thereof, and is operated by the so-called manual operation using the operating rod portion 11. Since the swing arm 1 can be realized, the equipment for swinging the swing arm 1 can be omitted.

The support mechanism 3 is set so that the swing arm 1 is moved toward and away from the roll body 2 by an adjustment operation in the support mechanism 3, and in this embodiment, it is shown in FIG. As described above, the support shaft 31 that is integrally connected to the lower surface of the base end of the swing arm 1 and extends downward, and the support shaft 31 that is formed in a tubular shape and that is connected to the base B can project and retract on the lower half side of the support shaft 31. And a spring 33 that is accommodated in the lower bottom portion of the holder 32 and biases the support shaft 31 so as to project from the holder 32.

As shown in FIG. 1, the support mechanism 3 is provided with a bracket 34 which is continuously provided on the base B and which is arranged so as to cover the base end of the swing arm 1 from above, and the bracket 34. The adjusting screw 35 is screwed and has its tip abutted against the upper end of the base end of the swing arm 1.

In the illustrated example, the lower end of the holder 32 is closed by a cap 32a so as to lock the lower end of the spring 33, as shown in FIG.

Therefore, in the support mechanism 3 according to this embodiment, when the adjusting screw 35 is screwed in, the base end of the swing arm 1 is pushed downward against the biasing force of the spring 33. As a result, the tip of the swing arm 1, that is, the pedestal 4 tends to separate from the upper roll body 2 as a result of approaching the base B.

On the contrary, when the adjusting screw 35 is pulled out, the base end of the swing arm 1 is the spring 3
It is pushed up by the urging force of 3 and is separated from the base B, and as a result, the tip of the swing arm 1, that is,
The pedestal 4 tends to approach the upper roll body 2.

Therefore, according to the support mechanism 3, the disc disk D held on the pedestal 4 at the tip of the swing arm 1
Can be moved closer to the roll body 2, and as a result, the pressure contact force of the disc D with respect to the roll body 2 can be changed.

In particular, when the pressure contact force of the disc board D against the roll body 2 becomes large, the roll body 2 will be described later.
Therefore, the rotational speed of the disc disk D due to the rotational drive is adjusted to be low.

The pedestal 4 basically needs only to be formed so as to hold the disc D in a detachable and rotatable manner, but in this embodiment, it has a disc shape with an appropriate thickness. And a body portion 41 formed on the upper surface thereof so as to mount the disc D in a fixed state.

The main body 41 has a circular recess 41a for accommodating the disc D integrally and a circular recess 41a.
A collar portion 4 adjacent to the outer periphery of a and formed in an annular shape with an appropriate width.
1b and.

In the illustrated example, as shown in FIG. 3, an anti-slip material, specifically, a sheet material 42 made of sponge is laid on the lower bottom surface of the circular recess 41a. The disc disk D housed in the
Care is taken to prevent so-called idle rotation within 1a.

As described above, the idling of the disc disk D in the circular recess 41a is prevented, that is, the disc disk D is integrally housed in the circular recess 41a. By integrating with D, it becomes possible to control the rotation speed of the disk board D through the control of the rotation speed of the pedestal 4 by the control mechanism 5 described later.

Although not shown, the disc board D may be integrated with the pedestal 4 by screwing a screw penetrating the center hole of the disc board D into the central portion of the pedestal 4. In this case, This is advantageous in that the disc board D can be more completely integrated with the pedestal 4.

By the way, in the illustrated example, the pedestal 4 is assumed to have a collar portion 41b which is provided adjacent to the outer periphery of the circular recess 41a and is formed in an annular shape with an appropriate width.
Is set so that the surface thereof is flush with the surface of the disc disk D housed in the circular recess 41a.

Therefore, in the pedestal 4, a circular recess 41 is formed.
When the disk disk D is accommodated in a, the diameter of the disk disk D is apparently increased, the significance of which will be described later.

In the pedestal 4, as shown in FIG. 3, a support shaft 43 continuously provided on the lower surface of the main body 41 is provided with a bearing 44.
It is rotatably disposed there by being pivotally attached to the tip of the swing arm 1 under the interposition of.

The control mechanism 5 functions to control the rotation speed of the pedestal 4 when it is forcibly rotated by the roll body 2 to be described later, so that the pedestal 4 tends to decrease in speed. By the control, the pressure contact time of the roll body 2 per unit area of the surface of the disk board D held on the pedestal 4 becomes long, and when the surface of the disk board D is polished, The polishing efficiency is improved.

From the above, as shown in FIG. 3, the control mechanism 5 is arranged on the upper surface side of the swing arm 1 so that the base end side is rotatably held and the tip end side is the pedestal. 4 and the operation rod 5 that is screwed onto the distal end thread portion 51a of the operation rod 51.
1 is rotated, the upper surface of the swing arm 1 is slid to receive the pedestal 4
Of the advancing / retreating member 52 and the taper surface 52a formed on the upper end side of the advancing / retreating member 52 are slidably contacted with each other so that only the vertical movement is allowed, and the upper end thereof is slidably contacted with the lower surface of the pedestal 4. And an elevating / lowering member 53.

The base end side of the operating rod 51 is a bearing 54.
It is rotatably held on the upper surface of the swing arm 1, and the elevating member 53 is a taper surface 52 of the advancing / retreating member 52.
The taper surface 53a that is slidably contacted with a is provided at the lower end, and the pad 55 that is made of felt and is slidably contacted with the lower surface of the pedestal 4 is provided at the upper end.

Therefore, in the control mechanism 5, when the operating rod 51 is rotated so as to be screwed, the advancing / retreating member 52 is retracted so as to be drawn toward the proximal end side of the operating rod 51. As a result, the advancing / retreating member 52
Then, the elevating member 53 which is in sliding contact with the upper part tends to descend, and the slidable contact of the elevating member 53 to the lower surface of the receiving table 4 with pressure is released.

Further, with respect to the above, the operation rod 51 is pivoted so as to be pulled out, whereby the advancing / retreating member 52 is moved.
Moves forward so as to be pushed toward the distal end side of the operating rod 51, and as a result, the elevating member 53 slidingly contacting the advancing / retreating member 52 from above tends to rise, and the lower surface of the pedestal 4 of the elevating member 53. A sliding contact with a pressure on is realized.

Therefore, according to the control mechanism 5, the rotational speed of the pedestal 4 is controlled to decrease by the rotational operation of the operating rod 51, that is, the rotational operation of the roll body 2 by the control operation. Will be possible.

The roll body 2 includes a swing arm 1 and a pedestal 4
It is formed so as to have a strip-shaped press-contact surface 2a (see FIG. 4) that is press-contacted to the surface of the disc disk D held via the That is, it is formed to have a cylindrical outer peripheral surface forming a continuous pressure contact surface 2a which is formed in a cylindrical shape by laminating buffs in multiple layers.

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

In the illustrated example, the roll body 2 has an extending direction of the pressure contact surface 2a, that is, as shown in FIG.
It is assumed that the extending direction of the shaft center is eccentric with respect to the diametrical direction which is the left-right direction in a plan view of the disk D.

Therefore, when the roll body 2 is rotationally driven in a state where the pressure contact surface 2a is in pressure contact with the surface of the disc board D, the roll body 2 rubs the surface of the disc board D with the pressure contact surface 2a. A predetermined wiping action will be performed.

Further, the roll body 2 is forced to rotate the disc disk D in the horizontal direction by the rotation of the roll body 2, that is, automatically, so that the motor for rotating the disc disk D, etc. It does not require a separate drive source.

As a result, when the roll body 2 is driven to rotate,
As the surface of the disk D is wiped while being placed in a pressure contact tendency and the disk D is rotated, the wiping action is automatically and evenly performed over the entire surface of the disk D. Will be.

Incidentally, the direction in which the roll body 2 is rotationally driven is set in the direction indicated by the arrow a in FIG. 1, and therefore the disc disk D is rotated in the direction indicated by the arrow b in FIG. Will be done.

As a result, the swing arm 1 which holds the disc D becomes in the state of being urged in the direction indicated by the arrow c in FIG. 1, and the roll body 2 slides on the surface of the disc D in a pressed state. When moving, it will always be kept in the set state.

The pressing locus exposed on the surface of the disk D by the rotational driving of the roll body 2 is
It will be exposed in the radial direction of the disc D.

That is, as shown in FIG. 4, the pressure contact surface 2a is
The wiping direction of the roll body 2 at an arbitrary point D1 on the surface of the disc board D with which the press contact is made is the direction G1 in which the press contact surface 2a is moved by the rotation drive of the roll body 2 and the disc board by the rotation drive of the roll body 2. The direction G2 of the direction G2 in which the pressure contact surface 2a tries to move when D moves and the direction G of the resultant force.
It becomes 3.

The resultant force direction G3 is the radial direction on the disc D, that is, the radial direction on the disc D, and therefore the pressure contact locus appearing on the surface of the disc D is the information track (FIG. (Not shown) is expressed in a state orthogonal to the circumferential direction, which is the distribution direction of
This corresponds to the disposing direction of the reproducing head (not shown) in the reproducing deck, which does not become an obstacle.

By the way, as described above, in the illustrated example, the disk board D is housed in the circular recess 41a of the pedestal 4, but the pedestal 4 has the circular recess 4a.
It has a collar portion 41b adjacent to the outer periphery of 1a and formed in an annular shape with an appropriate width.

The flange portion 41b is set so that its surface is flush with the surface of the disc D housed in the circular recess 41a.

Therefore, in the pedestal 4, the circular recess 41
When the disk disk D is accommodated in a, the diameter of the disk disk D is apparently increased.

As a result, when the disc disk D is horizontally rotated by the rotational driving of the roll body 2, the disc is rotated with reference to the position where the rotation speed of the roll body 2 and the rotation speed of the disc board D match. While the rotation speed on the outer peripheral side of the disk D becomes faster, the rotation speed on the inner peripheral side of the disk disk D becomes slower.

Therefore, when the collar 41b is provided on the pedestal 4 and the apparent total of the disc board D is large, the rotational speed of the roll body 2 and the rotational speed of the disc board D are equal to each other. The coincident position is positioned outside the outer periphery of the disc D, and therefore, the rotation speed in the portion of the disc D excluding the flange 41b is slowed.

As a result, by providing the pedestal 4 with the collar portion 41b, the rotational speed of the disc disk D can be set to be slowed down, and the efficiency of polishing the surface of the disc disk D by the roll body 2 can be improved. become.

When the press contact surface 2a of the roll body 2 is pressed against the surface of the disc disk D, the tip of the press contact surface 2a, which is the right end in the figure, of the disc disk D is, as shown in FIG. It is positioned so that it does not come into contact with the display portion D2, which is the central portion, so that wear or the like of the display portion D2 is not taken into consideration.

Incidentally, although not shown, the buff forming the roll body 2 is formed by laminating a large number of circular fabrics which are cut so as to have an opening through which the drive shaft 21 is inserted, and are made to have an appropriate thickness. For example, a fixed portion is formed by sewing with a sewing machine from the central portion toward the outer peripheral side, and the outer peripheral side is left as a non-sewn portion with an appropriate width, and the outer peripheral surface of the non-sewn portion is made into a soft pressure contact surface 2a. Is formed.

When the roll body 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, and in this case, the softness of the cylindrical outer peripheral surface of the roll body 2 can be appropriately adjusted.

In the illustrated example, the roll body 2 is supposed to be detachably held by the drive shaft 21. This is because the outer peripheral surface of the cylinder, which is 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 roll body 2 being separably held by the drive shaft 21 as in the illustrated example, the roll body 2 is configured integrally with the drive shaft 21, and therefore the roll body 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.

Although not shown, the roll body 2 is preliminarily inserted with a pipe material in its shaft core portion, and is constructed so that the drive shaft 21 can be easily inserted by using the pipe material as a guide hole. May be present, in this case, the roll body 2
This is advantageous in that the attachment / detachment operation to / from the drive shaft 21 is facilitated.

Further, although not shown, the roll body 2 has a sheet-shaped wiping member made of non-woven fabric, a brushed cloth, felt or the like spread on the outer peripheral surface of the core body formed of an aluminum material or the like in a closed cylinder. Alternatively, the shaft body of the core body may be opened to allow the drive shaft 21 to be inserted therethrough. In this case, the roll body 2 can be formed to be lightweight. Will be advantageous.

By the way, in the illustrated example, when the swing arm 1 is placed in the set state shown in FIG. 1, the tip of the swing arm 1 can be horizontally swung by the swing mechanism 6 to a slight width. It is set.

The swing mechanism 6 includes a drive source 61 disposed on the lower surface of the base B, and a drive shaft projecting from the drive source 61 and penetrating the base B toward the swing arm 1. 61a
A rotary plate 62 connected to the rotary plate 6;
The outer periphery of 2 is adjacent to a locking piece 63 that is continuously provided on the lower surface of the swing arm 1.

Therefore, in the swinging mechanism 6, when the drive source 61 is driven, the rotary plate 62 is eccentrically rotated, and at this time, the outer periphery of the rotary plate 62 is connected to the swing arm 1. Since the swing arm 1 is adjacent to the locking piece 63, the swing arm 1 swings outward.

Further, since the rotary plate 62 pivots inward by the eccentric movement, the swing for holding the disc board D when the roll body 2 slides on the surface of the disc board D as described above. Since the arm 1 tends to be pulled inward, the swing arm 1 automatically swings inward.

Therefore, in the swing mechanism 6, the drive source 61 is driven to rotate the rotary plate 62, whereby the tip of the swing arm 1 is swung, and the rotary plate 62 is rotated. By properly setting the amount of eccentricity with respect to the drive shaft 61a, the tip of the swing arm 1 can be slightly swung.

As a result, according to the swinging mechanism 6, when the roll body 2 is pressed against the surface of the disc board D, the position of the pressure contact is changed to a slight width.
Since it is possible to avoid the concentration of pressure contact by the roll body 2, it is possible to prevent so-called uneven pressure contact on the surface of the disk D, and to prevent the heat generation phenomenon on the surface of the disk D due to the concentration of pressure contact.

Further, by disposing the swing mechanism 6, it is possible to automatically set the swing amount when the swing arm 1 is set to the set state.

Therefore, in the disk disk surface restoration apparatus according to this embodiment formed as described above, by swinging the swing arm 1, the swing arm 1 is brought into the set state and the offset state. It becomes possible to do.

When the swing arm 1 is in the offset state, the disc board D can be attached to and detached from the pedestal 4 arranged on the swing arm 1, and the swing arm 1 is set. At this time, the roll body 2 can be pressed against the surface of the disc board D.

Then, when the roll body 2 is rotationally driven around its axis while the roll body 2 is in pressure contact with the surface of the disc board D, the roll body 2 is in pressure contact with the disc. It slides on the surface of panel D.

As a result, the surface of the disk D is wiped by the roll body 2, and the disk D is forcibly rotated horizontally.

Therefore, by appropriately selecting the length of the roll body 2, the wiping action on the surface of the disc D is carried out evenly together with the rotation of the disc D.

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

As a result, the pressure contact locus appearing on the surface of the disk D is expressed in a state orthogonal to the circumferential direction, which is the distribution direction of the information tracks on the disk D, and is recorded on the disk D. This corresponds to the arrangement direction of the reproducing head when reproducing audio or video, and this does not become an obstacle during reproduction.

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

By distributing an appropriate finishing material instead of the above-mentioned polishing material, it becomes possible to finish-polish the surface of the disk D, that is, to repair the surface of the disk D.

In particular, the cradle 4 for holding the disc D has a flange 41b on the outer circumference of a circular recess 41a for accommodating the disc D, and the flange 41b has a circular recess on its surface. In the case where it is set so as to be flush with the surface of the disc D housed in 41a, the roll body 2
The rotation speed of the disk disc D rotated by the sliding is slowed down as compared with the case where the flange portion 41b is not provided, and the above-mentioned polishing efficiency can be improved.

Further, when the adjustment operation of the support mechanism 3 is performed, that is, when the adjustment screw 35 is retracted to bring the swing arm 1 closer to the roll body 2, the swing arm 1 is moved.
It is possible to bring the disc board D held on the pedestal 4 at the end of the roll closer to the roll body 2, and as a result,
The pressure contact force of the roll body 2 with respect to the surface of the disc board D is increased, and the polishing efficiency can be improved.

Further, the disc board D housed in the pedestal 4 by the rotational driving of the roll body 2 by the control operation of the control mechanism 5, that is, the operation of rotating the operation rod 51 in the direction of pulling it out.
It is possible to control the rotation speed of the roll so as to decrease, and as a result, the pressure contact time of the roll body 2 per unit area of the surface of the disc board D becomes longer, and the above polishing efficiency can be improved. become.

Further, the roll body 2 is a disc D
When the swing arm 6 is slightly swung horizontally by the swinging mechanism 6 while being pressed against the surface of the disk, it is possible to avoid the concentration of the pressure contact by the roll body 2 with respect to the surface of the disk D. Therefore, it is possible to prevent the so-called uneven pressure contact on the surface of the disk D and the heat generation phenomenon on the surface of the disk D caused by the concentration of the pressure contact.

In the above-described embodiment, the swing arm 1 is set so as to be slightly swung in the so-called set state so that the pressure contact of the roll body 2 with the surface of the disk D can be prevented from being concentrated. However, instead of this, the roll body 2 may be slightly moved back and forth along the axial direction so as to avoid the concentration of the pressure contact.

In the above description, the case where the repairing device according to the present invention is provided as a so-called single unit has been described. However, according to the configuration of the present invention, the repairing device can be used for other devices such as, for example, Needless to say, it may be set so as to constitute a device for reproducing audio and video recorded on the disc D, or a part of a device for storing the disc D.

[0103]

As described above, according to the present invention, by automatically swinging the swing arm that holds the disk board on the pedestal to set it, the surface of the disk board is automatically rotated by the roll body. It will be possible to wipe it evenly,
At that time, since the pressure contact locus as the wiping locus by the roll body is expressed in the radial direction that is the radial direction on the surface of the disc board, the pressure contact locus is orthogonal to the circumferential direction that is the distribution direction of the information tracks on the disc board, It will correspond to the arrangement direction of the reproduction head on the reproduction deck,
It does not hinder the playback of audio and video recorded on the disc.

As a result, by disposing an appropriate abrasive between the pressure contact surface of the roll body and the surface of the disk body, the surface of the disk body can be automatically abraded and fine scratches can be erased. By arranging an appropriate finishing material between the pressure contact surface and the surface of the disk board, the surface of the disk board after the above polishing is automatically finish-polished, that is, a repair work for restoring a predetermined smooth surface is performed. It has the advantage of being automatically enabled.

Therefore, in the present invention, since the pedestal for rotatably holding the disc is provided with the flange having the flush surface adjacent to the outer periphery of the circular recess for accommodating the disc, It is possible to apparently reduce the rotation speed of the disk disk that is forcibly rotated by the pressure contact of the driven roll body, and it is possible to improve the above-described polishing efficiency.

In the present invention, since the swing arm, that is, the pedestal held by the swing arm can be adjusted to approach the roll body by the adjusting operation of the support mechanism, the roll for the disc disk housed in the cradle can be adjusted. There is an advantage that the pressure contact force of the body can be adjusted so that the polishing efficiency can be improved.

Further, according to the present invention, since the rotation speed of the pedestal due to the rotation of the roll body can be controlled to decrease by the control operation of the control mechanism, the rotation speed of the disk board is reduced to reduce the rotation speed of the disk board of the roll body. There is an advantage that the pressure contact time with respect to the surface can be lengthened and the polishing efficiency can be improved.

Further, according to the present invention, since the swing arm can be horizontally swung slightly by the swinging mechanism, when the roll body is pressed against the surface of the disc board, It is possible to avoid the concentration of pressure contact by the roll body on the surface, and it is possible to prevent so-called uneven pressure contact on the surface of the disk disc and heat generation phenomenon on the surface of the disc disc due to the concentration of pressure contact.

Further, according to the present invention, since the disc body can be rotated by rotating the roll body pressed against the surface of the disc body, it naturally has the function of removing dust and the like. Therefore, it is not necessary to additionally equip a device for rotating the disc board, 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.

Furthermore, according to the present invention, the repairing device can be used not only as a single unit but also as a part of other devices, so that the versatility thereof can be expected to be improved. There are also advantages.

[Brief description of drawings]

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

FIG. 2 is a front view showing the disk disk surface repair device of FIG. 1 with a part thereof cut away.

FIG. 3 is a partially enlarged sectional view showing a control mechanism together with a swing arm.

FIG. 4 is a plan view of a disc disk showing a positional relationship between pressure contact surfaces of roll bodies.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 swing arm 2 roll body 2a pressure contact surface 3 support mechanism 4 pedestal 41a circular recess 41b collar 5 control mechanism 6 swing mechanism B base D disk board

Claims (6)

[Claims] 1. A swing arm having a base rotatably connected to a base and a pedestal rotatably holding a disc disk at a tip thereof, and a disk disposed on the base and held by the pedestal. A roll body that has a pressure contact surface that is pressed against the surface of the board and that is rotated around its axis, and the base end of the swing arm is supported by a support mechanism disposed on the base. Disk disk surface restoration device rotatably connected to a base and set so that a swing arm is moved toward and away from a roll body by an adjusting operation in the support mechanism. 2. A swing arm having a base, which is rotatably connected to a base, rotatably having a pedestal for detachably holding a disk disc at the tip, and a disc arranged on the pedestal and held by the pedestal. A circular recess having a pressure contact surface that is pressed against the surface of the board and driven to rotate about its axis, and a pedestal for accommodating the disk board integrally; And a flange portion which is adjacent to the outer periphery of the circular recess and is formed in an annular shape with an appropriate width, and the surface of the flange portion is flush with the surface of the disc disk housed in the circular recess. Disk disc surface repair device that has been set 3. A swing arm having a base rotatably connected to a base and rotatably having a pedestal for detachably holding a disc at a tip thereof, and a disc arranged on the pedestal and held by the pedestal. And a roll body that has a pressure contact surface that is pressed against the surface of the board and that rotates around its axis, and a swing arm controls the rotation speed of the pedestal so that it tends to slow down. For repairing disc surface 4. The restoration of the disc surface of claim 1 or 3, wherein the roll body is formed of a fibrous composition into a cylindrical shape, and the cylindrical outer peripheral surface is set as a continuous pressure contact surface. apparatus 5. The roll body is formed of a fiber composition into a cylindrical shape, and the cylindrical outer peripheral surface is set as a continuous pressure contact surface, and the pressure contact surface is also pressure contacted with the surface of the flange portion of the pedestal. 3. The disk disk surface restoration device according to claim 2, wherein 6. The disc board surface according to claim 1, wherein the swing arm is formed so as to slightly swing the pedestal at the tip end in a substantially radial direction thereof. Repair equipment