JPH0617226Y2 - Holding device for cleaning information recording disk - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a holding device for holding an information recording disk in order to clean and clean the recording surface of an information recording medium formed in a disk shape. More specifically, regarding the device, the information recording disk can be securely fixed during cleaning, and the player cannot remove the cleaned information recording disk from its place without touching it directly with the player or the case. The present invention relates to a holding device for cleaning an information recording disk that can be placed on a table.

[Conventional technology]

Various optical recording type information recording media such as a laser disk and a compact disk are provided. In the case of such an optical information recording disk, for example, a compact disk, information is read by the difference between the spot diameter of the laser beam used for reading and the beam diameter on the disk surface, and because it is a non-contact type, it is strong against scratches and dust, Since it can withstand home use,
In particular, it has become remarkably popular recently as a recording medium for music information.

That is, the spot diameter of the laser beam used for reading is about 1 μmφ, but the beam diameter on the disk surface is 1 mmφ.
The area difference is about 1 million times. This is
This means the same as reducing the effect of scratches and dirt on the surface of the disk to one millionth. Further, since it has an error correction function, even if dust adheres within the limit where error correction is effective and bit loss occurs, it is possible to restore the bit at the time of recording at the time of reproduction. In other words, even if the recording density is increased, it is possible to minimize the influence of dust attached to the surface of the recording surface, so that the recording medium can be used regardless of the usage environment.

However, even if the compact disc is not easily affected by dust as described above, if dust of a size that cannot be error-corrected is attached, the sound quality is deteriorated or noise is generated. In particular, the pit tracing direction, that is,
If dust or scratches occur in the circumferential direction, even a relatively small object will cause an error. Therefore, to clean the surface of the compact disc, a method of wiping with a soft cloth such as chamois is used.

When the surface of the compact disc is wiped in this way, conventionally, the compact disc is generally placed on a soft cloth, chamois, cushion, or the like to perform the work.

[Problems to be solved by the device]

By the way, when cleaning compact discs, conventionally, a soft cloth or chamois with a large coefficient of friction as described above is used, or a convex part is provided in the center part of the center hole of the compact disc. Although the compact disc is inserted so as to make it difficult to move, the compact disc is imperfectly fixed in these methods, so that the compact disc moves during cleaning and eventually needs to be pressed by hand. Then, there was a problem that fingerprints were attached to the disc surface when pressed by hand. Further, as another method, a recess is formed on the support surface of the disk, and there is also a structure in which the disk is placed and wiped in the recess, but even with this configuration, when performing the wiping operation,
In addition to the radial force, the circumferential force is always applied, so
Since the disk moves in the circumferential direction, the disk cannot be reliably supported, and there is a possibility that the disk may be unevenly wiped or scratched in the circumferential direction.

Furthermore, no matter which cleaning method is adopted, when mounting it on the disc player, it must be held by hand and placed on the turntable.
There was no possibility of eliminating fingerprints.

The present invention has been made in view of the circumstances of the prior art as described above, and an object thereof is to securely hold an information recording disk without directly holding it when cleaning the information recording disk. An object of the present invention is to provide a holding device for cleaning an information recording disk that allows the disk to be removed without touching the disk.

[Means for Solving the Problems]

The above-mentioned object is to form a holding device for holding and fixing the information recording disk when cleaning the information recording disk, in which a mounting surface having a diameter slightly smaller than the outer circumference of the information recording disk on which the information recording disk is mounted is formed. The support base, the grip provided on the surface opposite to the mounting surface of the support base, and the projection on the mounting surface of the support base, each fitted into the center hole of the information recording disk, A plurality of protrusions each having an engaging portion that engages with the upper surface of the peripheral edge portion, an urging means for elastically urging at least one of these protrusions toward the outer peripheral direction of the information recording disk on the grip portion side, and the grip portion side It is achieved by comprising an operation lever provided on the base plate and urged by the urging means to move toward the center of the support base.

[Action]

According to this means, the information recording disk to be cleaned is placed on the mounting surface of the support, and the protrusion is fitted in the center hole. At this time, the projections elastically biased by the biasing means can be easily fitted by pushing them toward the center of the peripheral portion of the center hole or by pushing the manipulation levers toward the center. Can be fitted into the center hole. When the information recording disk is mounted on the mounting surface in this manner, the engaging portion of the protrusion engages with the upper surface of the peripheral edge of the center hole, so that the information recording disk is reliably fixed on the mounting surface. On the other hand, when removing the information recording disk from the mounting surface, the projection is separated from the edge of the disk by operating the operation lever to move the projection biased by the biasing means toward the center of the support base. It moves in the direction and the engagement relationship between the center hole and the engagement portion of the projection is released, so that the disc can be removed. Therefore, hold the grip by hand,
This holding device is placed on the player or case installation part of the information recording disk with the placing surface facing down, and the player can operate the operating lever without touching the cleaned information recording disk at all. It can be set in the installation section of.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings, taking cleaning of a compact disc as an example.

1 and 2 are for explaining a first embodiment of the present invention, and FIG. 1 is a compact disc (hereinafter, referred to as
FIG. 2 is a vertical cross-sectional view of a holding device (hereinafter simply referred to as a disk), and FIG. 1 and 2, the holding device 1 has a support base 4 on which a mounting surface 3 having substantially the same shape as the disk 2 is formed so that the disk 2 can be mounted thereon. An insertion hole 5 is formed in the center of the support base 4, and a projection 6 obliquely inclined in the outer peripheral direction is formed in a part of the peripheral edge of the insertion hole 5 so as to be integrated in a circumferential direction with a gap 7 therebetween. Is formed in. Since the disk 2 comes into contact with the mounting surface 3, a relatively soft protective mat 10 made of synthetic resin is attached.

A disk-shaped cover portion 8 is provided on the back surface of the support base 4 so as to cover the back surface with a gap. A cylindrical grip portion 9 is integrally formed at the center of the cover portion 8.

Sliding protrusions 11 are fitted in the insertion holes 5 of the support base 4 so as to face the pair of protrusions 6. The circumferential length of the sliding projection 11 is set to be substantially equal to the circumferential length from one end to the other end of the pair of projections 6 and shorter than the peripheral length of the insertion hole 5. That is, the sliding protrusion 11 can move in the insertion hole 5 toward the center thereof. The sliding projection 11 is also configured to be inclined from the peripheral edge of the insertion hole 5 in the outer peripheral direction. A sliding piece 12 that extends in the center direction of the insertion hole 5 and is located in the gap 7 between the pair of projections 6 is integrally provided at a substantially middle portion of the sliding projection 11 in the circumferential direction. Has been. A notch 13 is formed at the lower end of the tip of the sliding piece 12, so that when the sliding piece 12 moves fully in the direction of the protrusion 6,
The tip of the sliding piece 12 can be moved without being disturbed by the support 4. The sliding piece 12 is provided at the tip of a slide member 14 housed in the gap between the support base 4 and the cover portion 8 so as to be movable in the radial direction. Slide member
The lower surface of the outer peripheral side of 14 has slits formed in the cover portion 8.
It has an operation lever 16 protruding downward from 15. The slide member 14 also has a locking projection 17, which is a locking projection.
One end of a coil spring 18 is locked to the coil 17. The other end of the coil spring 18 is locked by a locking projection 19 formed on the back surface of the support base 2 in the outer circumferential direction,
As a result, the slide member 14 is always elastically biased in the outer peripheral direction.

In the disk holding device 1 configured as described above, as shown by an arrow A in FIG.
When pushed in the direction of, the sliding protrusion 11 is biased toward the center of the insertion hole 5. As a result, the outermost space between the protrusions 6 and 11 becomes smaller than the inner diameter of the center hole 20 of the disc 2,
The center hole 20 of the disk 2 is fitted into the outer peripheral portions of the projections 6 and 11 and placed on the placing surface 3, and the finger is released from the operating lever 16. Then, the slide member 14 returns to the outer peripheral direction of the support base 4, which is the direction opposite to the arrow A, by the elastic force of the coil spring 18. As a result, the sliding protrusion 11 pushes the inner edge of the center hole 20 of the disk 2 in the outer peripheral direction, and the both protrusions 6, 11 push the inner edge sides of the center hole 20 in mutually opposite directions. In this way, the disk 2 is placed on the mounting surface 3 of the support base 4.
It is held and fixed on. At this time, since the contact portions of the projections 6 and 11 with the center hole 20 are formed at an acute angle θ with respect to the mounting surface 2, the disk 20 faces the mounting surface 2 side when pushed outward in the radial direction. A component force is generated, so that the disk 20 can be more reliably pressed and held on the mounting surface 2.

Then, after the disk 20 is set on the support base 4 as described above, if the holding portion 9 is held, the disk 2 can be cleaned while the disk 2 is securely held. After the cleaning is completed, the holding device 1 is carried on the disc mounting portion of the disc player, and the holding device 1 is turned upside down so that the cleaned recording surface faces the mounting portion and the operation lever 16 is pulled to project. The engagement state between the center holes 20 and 6 and 11 is released, the disc 2 drops to the mounting portion side, and cleaning and setting on the disc player can be performed without touching the disc 2 with hands.
In order to make the dropping operation more reliable at this time, a sliding piece 12 is formed on the protrusion 8, and as can be seen from FIG. 1, when the operating lever 16 is operated, the space between the protrusions 6 on the fixed side is increased. The sliding piece 12 projects into the gap 7 so that the inner peripheral edge of the center hole 20 of the disk 2 can be pushed.

Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4. FIG. 3 is a plan view of the holding device main body according to the second embodiment, and FIG. 4 is a sectional view taken along line IV-IV in FIG. In this second embodiment, the same reference numerals are given to the components that are the same as or considered to be the same as those of the first embodiment described above, and the duplicated description will be omitted.

In the second embodiment, the support 4, the grip 9 and the projection 6 are integrally molded with a resin material.
In the figure, the holding device main body 31 integrally including these is
The grip 5 includes a resin elastic portion 32 formed integrally with the holding device main body 31 in a curved shape, and an operation lever 33 continuous with the resin elastic portion 32. Further, the upper end of the operation lever 33 has a movable side. Sliding protrusions 34 are formed. The outer corners of the tip ends of the sliding protrusion 34 and the protrusion 6 are obliquely inclined downward. The operation lever 33 is located in the grip portion 9, and the operation lever 33 is operated by inserting a finger from the open bottom portion of the grip portion 9. Further, the fixed side projection 6 is also formed so as to extend from the upper surface of the holding device main body 31, and only one is formed in the second embodiment. The protective mat 10 is attached to the mounting surface 3 of the holding device body 31. In addition, all other parts not specifically described are configured in the same manner as in the first embodiment.

To mount the disc 2 in the case of the second embodiment, after the center hole 20 of the disc 2 is positioned on the protrusions 6 and 34, a force is applied to push the disc 2 in. Protrusion 6,
Since the outer corner portion of the tip of 34 is inclined obliquely downward, a force is exerted on the protrusions 6 and 34 to bring them closer to each other, and only the movable sliding protrusion 34 has a resin elastic portion 32. The protrusions 6 and 34 are inserted into the center hole 20 of the disk 2 since they approach the fixed protrusion 6 side against the elastic force of the sliding protrusions, and thereafter the protrusions 6 and 34 are slid by the elastic force of the resin elastic portion 32. 34 is pulled in the direction opposite to the fixing projection 6, and the disk 2 is fixed on the holding device main body 31. When removing the disc 2 from the holding device body 31, the operation lever 33
When a finger is hung on the lower end of the slider and is swung in the direction of arrow B in FIG. 4, the sliding protrusion 34 tilts to the right in FIG. 4, and the engaging portion of the sliding protrusion 34 disengages from the surface of the disk 2, so In this state, the disc 2 may be removed. When the finger is released from the operation lever 33, the elastic force of the resin elastic portion 32 causes the sliding protrusion 34 to return to the position shown in FIG. With this configuration, the coil spring 18 as in the first embodiment is unnecessary, and a holding device having a simple structure can be provided.

In the first and second embodiments described above, the protrusion is composed of the fixed protrusion 6 and the sliding protrusions 11 and 34, but the fixed protrusion 6 also has the sliding protrusions 11 and 34. Needless to say, both protrusions may be movable. Further, in each of the above-mentioned embodiments, these protrusions are inserted into the center hole 20 of the disk 2 and the peripheral edges of the center hole 20 are engaged and fixed. However, one protrusion is the protrusion inserted into the center hole 20. Even if it is engaged with the outer peripheral edge of the disk 2 that is opposed to the disk 2 with the disk 2 sandwiched therebetween, both the fixed-side protrusion and the sliding protrusion are engaged with the outer peripheral edge of the disk 2 with a space of approximately a half circumference thereof. Of course, it may be provided so as to engage only with the outer peripheral edge of the disk 2.

[Effect of device]

As is clear from the above description, the support base on which the mounting surface having a diameter slightly smaller than the outer circumference of the information recording disk on which the information recording disk is mounted is formed, and the surface facing the mounting surface of the support base. A grip provided, and a plurality of protrusions protruding from the mounting surface of the support base, each of which is fitted into the center hole of the information recording disk and has an engaging portion which engages with the upper surface of the peripheral edge of the center hole. , A biasing means for elastically biasing at least one of these projections toward the outer peripheral direction of the information recording disk on the gripping part side, and a projection provided on the gripping part side and biased by the biasing means on the support base. According to the holding device of the present invention, which is composed of the operation lever for moving the center of the information recording disk, the protrusion is biased toward the center of the mounting surface against the elastic biasing force. Insert it outside the protrusion to release the biasing force. In the information recording disk can be easily held and fixed to a mounting on the surface, the cleaning of the information recording disc can be reliably performed. When removing the information recording disk after cleaning and setting it on the player or case, by operating the operation lever to move the protrusion biased by the biasing means toward the center of the support base,
Since the protrusion moves in a direction away from the edge of the disc and the engagement relationship between the center hole and the engaging portion of the protrusion is released, the disc can be removed. Therefore, hold the grip by hand,
Position this holding device on the player or case installation part with the mounting surface facing down, and simply operate the operating lever to place the cleaned information recording disk on the player or case installation part without touching it at all. Can be set.

[Brief description of drawings]

FIGS. 1 and 2 are for explaining a first embodiment of the present invention. FIG. 1 is a perspective view of a holding device for a compact disc, FIG. 2 is a longitudinal sectional view thereof, FIG. Fourth
The drawing is for explaining the second embodiment, FIG. 3 is a plan view of the holding device main body according to the second embodiment, and FIG.
FIG. 4 is a cross-sectional view taken along line IV-IV in the figure. In the drawings, 1 is a holding device, 2 is a disc, 3 is a mounting surface, 4 is a support base, 5 is an insertion hole, 6 is a protrusion, 7 is a gap, and 8
Is a cover portion, 9 is a gripping portion, 10 is a protective mat, 11 and 34 are sliding protrusions, 12 is a sliding piece, 13 is a cutout portion, 14 is a sliding member, 15 is a slit, 16 and 33 are operating levers, Reference numerals 17 and 19 are locking protrusions, 18 is a coil spring, 20 is a center hole, 31 is a holding device body, and 32 is a resin elastic portion.

Claims (1)

[Scope of utility model registration request] 1. A holding device for holding an information recording disk when cleaning the information recording disk, wherein a mounting surface having a diameter slightly smaller than the outer circumference of the information recording disk on which the information recording disk is mounted is formed. A support base, a grip portion provided on a surface of the support base opposite to the mounting surface, and projecting on the mounting surface of the support base, each fitted into a center hole of the information recording disk, A plurality of protrusions having engaging portions that engage with the upper surface of the peripheral portion of the center hole, and an elastic member that elastically biases at least one of these protrusions in the outer peripheral direction of the information recording disk on the side of the grip portion. A cleaning of an information recording disk, comprising: a biasing means; and an operation lever which is provided on the grip portion side and moves the projection biased by the elastic biasing means toward the center of the support base. Protection Apparatus.