JP2008305489A - Dust removing disk - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent read and write errors when a slip occurs due to dust such as dirt and hair accumulated between a disk and a turntable or a clamper to cause abnormal rotation of the disk. <P>SOLUTION: A tacky adhesive material is applied on the surface of a dust removing disk 1 and the dust 5 such as the dirt and the hair around an inner bottom part of a pickup mechanism and on the surfaces 7 and 9 of the turntable 6 and the clamper 8 in contact with the disk is adhered to the tacky adhesive material and removed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is intended to remove dust, dust, hair, and other dust on the disk surface by applying an adhesive to the surface of the inner surface of the pickup mechanism and the contact surface between the turntable and the crumbers and the disk. is there.

  If dust accumulates inside the pickup mechanism, an information read / write error occurs during playback or dubbing by inserting a commercially available disc such as a CD or DVD. In particular, during high-speed dubbing, the disc slides due to the action of rollers such as dust, dust, hair, etc. stacked between the disc and the turntable or crumbler, causing abnormal rotation of the disc.

  The disc is sandwiched between the turntable and the opposite clamper opposite to the turntable, and the disc is rotated or rotated at high speed by a spindle motor. The disc is regenerated or dubbed. , Slip is generated by the action of the roller of dust such as hair (hereinafter referred to as “dust”). A playback or dubbing error occurs due to the slip.

  Normally, the inside of a pickup mechanism equipped with a disc is a sealed type in which dust is difficult to enter from the outside. Therefore, once the dust enters, it is not discharged and is accumulated around the inner bottom of the pickup mechanism.

  Also, if dust is attached to the disk, if it is inserted, mounted, and activated inside the pickup mechanism, the dust will be wiped off inside the pickup mechanism and will be further accumulated inside.

  In addition, the accumulated dust is pressure-accumulated and accumulated at the disk contact portion with the turntable and the crumb every time the disk is mounted, and the dust causes a roller action, causing the disk to slide and an error.

  As a method for stopping the sliding of the disk, Japanese Patent Application Laid-Open No. 63-201916 “Disc” discloses a disk characterized by scribing the surface of the disk in order to increase the friction coefficient. Yes.

  Japanese Patent Application Laid-Open No. 62-239439, “Disc-shaped Recording Medium”, provides that the portion contacting the turntable is roughened.

  Japanese Laid-Open Patent Publication No. 9-17102 “Disc Drive Device and Method” discloses a method of removing dust on the turntable by rotating the turntable itself.

Japanese Patent Laid-Open No. 2003-30902 “Disk recording medium” provides a lens cleaning device using a brush, a sponge, and a nonwoven fabric.
JP-A-63-201916 JP-A-62-239439 Japanese Patent Laid-Open No. 9-17102 JP 2003-30902 A

  However, in the method for preventing slipping by scrubbing or roughing the disk in contact with the turntable as described above, the surface of the turntable and the crumbers is generally damaged. When a widely used disc is inserted, the contact area becomes smaller due to the unevenness of the scratches, and further slipping is likely to occur. Therefore, on the contrary, a generally popular disk cannot be used. In addition, the dust that has been pressure-bonded and laminated between the turntable and the disk cannot be removed by shaking off by simply rotating the turntable. Moreover, the cleaning found in Japanese Patent Application Laid-Open No. 2003-30902 “Disc Recording Medium” merely cleans the lens and does not prevent the disc from slipping.

  In order to prevent slippage between the inner bottom of the pickup mechanism and the turntable / clamper / disk, the contact area for increasing the frictional resistance should be roughened, or the dust that has entered the lens should be removed with a brush, etc. A method for cleaning only the lens is also disclosed.

  However, this also only moves the dust adhering to the lens to a place other than the lens around the inner bottom of the pickup mechanism. It does not remove the dust around the inner bottom of the pickup mechanism, but rises due to the rotation of the disk. The dust will reattach to the lens.

  Further, it reattaches to the contact surface of the turntable or the surface of the clamper with the disk and is pressure-bonded and laminated, and slippage occurs due to the action of the roller, and normal reproduction or dubbing cannot be performed.

  Dust is absolutely a major enemy for normal regeneration and dubbing, and it is necessary to remove the dust. However, the suction port of the vacuum cleaner cannot be inserted from the entrance / exit of the disc tray, and wipe with a cloth. It is also impossible to prevent slipping by increasing the frictional resistance, but it is also impossible to remove the dust fundamentally, and finally the roller action by the dust A slip occurs and an error occurs during playback or dubbing.

  Once slipping occurs, the only way to remove the dust is to ask the manufacturer to disassemble and assemble it for repair, and the user himself has a complicated structure for removing the dust by disassembling and assembling. So it is very difficult.

  In addition, repairs after the occurrence of slips are often caused by scratches on the surface of the contact area between the turntable and the crumbers and the disc. become.

  This is a dust removing disc in which dust is removed from the contact surface between the turntable, the crumbers and the disc and the inner bottom of the pickup mechanism by applying an adhesive material to the disc surface.

  Further, the present invention is a dust removing disk characterized in that radial protrusions are provided on the back surface of the disk.

  According to the present invention, since the adhesive material is applied to the contact portion of the disk that contacts the turntable or the clamba, the pressure-bonded dust can be removed by adhering to the adhesive material. It has become possible to prevent the disc from slipping due to the action of the roller by the dust laminated on the contact surface.

  Further, by applying an adhesive material to the disk surface other than the contact portion and rotating it at high speed, dust floating inside the pickup mechanism can be attached to and removed from the disk surface. The bottom area can be kept clean.

  By maintaining a clean and dust-free condition around the inner bottom of the pickup mechanism, the contact between the turntable / clamper and the disk is ensured because of the clean condition without dust being laminated on the contact area between the turntable / clamper and the disk. The part could be securely held and no slip occurred.

  In addition, by attaching a radial protrusion to the dust removal disc and rotating the dust removal disc, the dust around the inner bottom of the pickup mechanism rises due to the wind pressure generated by the radial protrusion of the removal disc, and the raised dust is transferred to the dust removal disc. It can be removed by attaching to the adhesive material.

  Dust is removed around the inner bottom of the pick-up mechanism and the contact surface between the turntable and the clamper and the disk, eliminating slippage due to the action of the rollers due to pressure lamination and scratching on the contact surface with the turntable and the clamper. It is now possible to revive the close rotation and prevent errors during playback and dubbing.

  Therefore, by regularly removing dust with the dust removal disc, it is possible to easily maintain a clean condition free of dust around the inner bottom of the pickup mechanism and the contact surface between the turntable, the crumbler and the disc. Became.

  By removing the dust accumulated on the inner bottom of the pickup mechanism and pressed and laminated on the surface of the clamber opposite to the turntable surface, it is now possible to prevent the occurrence of slipping due to the action of rollers during reproduction or dubbing. .

  FIG. 1 is a cross-sectional side view showing an outline of installation of a dust removing disk for removing dust such as dust, dust and hair according to the present invention, and FIG. 2 is a plan view of the surface of the dust removing disk. In the figure, reference numeral 1 denotes a dust removing disk for removing dust such as dust, dust and hair. On the surface 1A of the dust removing disc 1, an adhesive material is applied to the contact portion 2 and the peripheral portion 4 with the clamper 8.

Reference numeral 5 denotes dust such as dust, dust, and hair. The dust 5 floats on the turntable 6, the clamper 8, or the inside of the pickup mechanism 13. In order to remove the dust 5, the contact portion 2 of the front surface 1A and the contact portion 3 of the back surface 1B of the dust removal disc 1 respectively facing the contact surface 7 of the turntable 6 that sandwiches the disc 1 and the contact surface 9 of the clamper 8 The adhesive 5 is applied to remove the dust 5 adhering to these contact surfaces 7 and 8. Further, adhesive material is also applied to the entire surface of the front surface 1A of the dust removal disc 1 and the peripheral portions 4 and 10 of the back surface 1B, and the dust 5 inside the pickup mechanism 13 where the dust removal disc 1 has swung up during rotation is also removed. It is made to adhere to the adhesive applied to the peripheral portions 4 and 10 on the surface of the disk 1 so that it can be removed.
In the present embodiment, the surface 1A and the back surface 1B of the dust removing disk 1 are provided with an adhesive material. However, it may be applied to one side, for example, only the front surface 1A or only the back surface 1B.

  On the other hand, the following cases can be considered for the accumulation of the dust 5 in the pickup mechanism 13. When a commercially available disc for dubbing or playback is set and the disc tray 14 is put in and out, the dust 5 adhering to the surface of the disc is swung away around the bottom of the pickup mechanism inside 13 by high speed rotation and accumulated. The

  In addition, it naturally invades and accumulates due to air convection (movement from a warm place to a cold place and vice versa) and air convection by a cooling fan of the main device.

  In addition, the dust 5 accumulated around the bottom of the pickup mechanism interior 13 rotates at a high speed during reproduction and dubbing, so that it rises by the air flow of the disc. The raised dust 5 is accumulated on the contact surfaces 7 and 9 of the turntable 6 and the clamper 8 with the disc after the disc has been extracted, and is pressed and laminated each time the disc is inserted.

  Thus, even if the turntable 6 is rotated at a high speed, the dust pile 5 that has been pressure-bonded and stacked cannot shake off the dust 5 stacked on the contact surfaces 7 and 9 of the turntable 6 and the disc of the clamper 8. These dusts 5 are removed by adhering to the adhesives 2 and 3 applied to the dust removal disk 1 by mounting the dust removal disk 1.

  By removing the dust 5 accumulated in the vicinity of the bottom of the pickup mechanism inside 13 and pressure-bonded and laminated on the surface of the clamper opposite to the surface of the turntable, it is possible to prevent the occurrence of slip due to the action of rollers during reproduction or dubbing. It is a thing.

  FIG. 3 is a back plan view showing another embodiment of the dust removing disk 1 according to the present invention, and FIG. 4 is a cross-sectional side view taken along line YY in FIG. As shown in the figure, in this embodiment, a plurality of wing-like protrusions 11 are radially provided on the back surface 1B of the dust removing disk 1.

  When the dust removal disc 1 is mounted on the pickup and operated, the dust 5 accumulated around the bottom of the pickup mechanism interior 13 is caused by the wind pressure caused by the flow of wind from the inside to the outside by the projection 11 on the back surface 1B of the dust removal disc 1. Soar.

  By removing the sooted dust 5 attached to the adhesive material applied to the contact portion 2 and the peripheral edge portion 4 of the front surface 1A of the dust removal disc 1 and the adhesive material applied to the contact portion 3 and the peripheral edge portion 10 of the back surface 1B. It is possible to easily maintain a neat situation without dust 5 around the bottom of the pickup mechanism 13 and around the disk contact portions 7 and 9 of the turntable 6 and the clamper 8.

  Although the above-mentioned protrusion 11 has shown an arc shape, it goes without saying that it may be linear, bent or spiral as long as it has the same technical idea.

  Needless to say, the dust removal disc 1 can be applied to various types of dust removal such as CD players, DVD players, DVD recorders, PCs, game machines and the like.

It is a schematic explanatory drawing which shows the state which installed the dust removal disk, such as garbage, dust, and hair, by this invention. It is a surface top view which shows the dust removal disc by this invention. It is a back surface top view which shows the other Example of the dust removal disk by this invention. It is a cross-sectional side view in the YY line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust removal disk 1A Front surface 1B Back surface 2 Contact part 3 Contact part 4 Peripheral part 5 Dust 6 Turntable 7 Contact surface 8 Clamper 9 Contact surface 10 Peripheral part 11 Protrusion 12 Spindle motor 13 Pickup mechanism inside 14 Disc tray

Claims (2)

  A dust removing disc characterized by removing dust, dust, hair and other dust around the adhesive surface between the turntable and the crumber and the disc and the inner bottom of the pickup mechanism by applying an adhesive material to the disc surface.   2. The dust removing disk according to claim 1, wherein radial protrusions are provided on the back surface of the disk.

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