JPS63880A - Disk carrying tray - Google Patents

Abstract

PURPOSE:To exactly perform the curing process of a coating material for protection on the surface of a disk, by setting the position of the peripheral part of the disk placed on a tray having an aperture by two rings, and forming slanting planes on the rings, respectively. CONSTITUTION:Two rings 16 and 17 are placed on the base 13 of a tray 12 having the aperture, and a disk 17 is positioned at the aperture part of the ring 17 by supporting the peripheral part of the disk 17 in the periphery of the inner diameter of the ring 16. The slanting planes 18 and 19 are provided on the upper planes of the rings 16 and 17. At the time of coating the coating material as a protecting film on the recording plane of the disk, a part of it sags at the outer peripheral plane of the disk. A coating film 20 is cured by projecting an infrared ray from the upward direction, but, the coating film formed extending to the outer periphery of the disk is also projected by reflection on the slanting plane 19. Therefore, the outer plane of the disk can be exactly coated by the protecting film 20, thereby, it is possible to carry the disk safely.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a disc transport device used in the process of forming a protective film on the surface of, for example, a compact disc on which acoustic information is recorded. Regarding the tray.

[Prior Art] For example, in the case of a compact disc on which acoustic information is digitally recorded, digital recorded information is formed by unevenness on the surface of the disc body made of synthetic resin (1M). .

An aluminum vapor-deposited film is formed on this surface, and the recorded information formed on the surface of this vapor-deposited film corresponding to the disk recording surface is converted into digital data as reflected light using, for example, laser light. so that it can be read. In this case, in order to protect the information recording section protected by the aluminum vapor deposited film, a protective film is formed on the surface of the disc body where the aluminum vapor deposited film is present.

This protective film is formed by, for example, applying a paint that hardens by irradiation with ultraviolet rays to the surface of the disc body, and then irradiating the coated surface with ultraviolet rays using, for example, a mercury lamp to cure the paint. I have to.

In the process of forming such a protective film, a tray is used to transport the disc body on which the information recording surface is formed to the paint application area. In addition, after the above-mentioned paint is applied, the coated surface must be reliably protected and transported, and the paint must be cured. In the ultraviolet irradiation process, it is required to ensure that the necessary portions of the disc are irradiated with the light.

[Problems to be Solved by the Invention] This invention has been made in view of the above points, and is particularly effective in the process of forming a protective film on the surface of a disk, so as not to cause unnecessary damage to the disk. In addition, the present invention aims to provide a tray for transporting disks that reliably protects the paint applied to the surface and allows the curing process using ultraviolet rays to be reliably performed.

Means for Solving Problem L] That is, the disc transport tray according to the present invention has a base having an opening in the center, and a first ring that supports the peripheral portion of the disc to be transported at a coaxial position. a second ring having an opening corresponding to the diameter of the disk and overlapping the first ring;
The first ring has a first tapered surface that extends downward toward the center, and the inner surface of the opening of the second ring has a first tapered surface that extends downward toward the center. A second Taber surface is formed so as to spread out.

"Operation" - 3 With a tray 1 like the one above, the disk to be transported is fitted into the opening of the second ring, and the first
The disk is supported around the opening of the ring, and the disk is supported in a very limited area around the disk by the first taper surface, and the second taper surface supports the disk in a very limited area around the disk. Curing light such as ultraviolet rays is effectively irradiated to the outer periphery of the disk supported by the surface, and the disk is transported safely and the applied coating is cured. Effect control of f4 can now be executed with certainty.

[Embodiments of the invention] Hereinafter, an example of the present invention will be described with reference to the drawings.

1 and 2 show a tray 12 for transporting a disk 11 used, for example, in the process of forming a surface protective film.
Equipped with 3. The base 13 has an opening formed in the center that is approximately equal to the diameter of the disk 11, and a straight line on the periphery that serves as a guide mechanism when the tray 12 is transported by a transport mechanism. Guide edge 14a
-14d is formed. Guide edges 14a and 14b are used for determining the stop position of this tray 12, etc.
Lock plate 1 having notches 151 in each part
5a and 15b are attached.

A first ring 16 is attached to the base 13 so as to be coaxially aligned with the opening, and a second ring 17 is attached to the base 13 so as to be stacked on the first ring 16.
is provided. Here, the inner diameter of the opening of the second ring 17 is f'? which is slightly larger than the diameter of the disk 11 to be transported. The inner diameter of the opening of the first ring 1G is set to be smaller than the diameter of the disk. That is, the peripheral edge of the disk 11 is supported by the area around the opening of the first ring 6,
It is configured to be positioned within the opening section of the second ring 17.

The supporting portion of the disk 11 in the vicinity of the opening of the first ring 16 is tilted downward at an angle θ1 in order to set a distance from the back surface of the supported disk 11.
(-3°) to form the first tapered surface 18,
The disk 11 is made to contact and be supported by the first ring 16 only in a very limited area around the outer periphery of its back surface. In other words, the surface of the disk 11 is not unnecessarily brought into contact with the tray support portion, and is reliably protected from damage.

Further, in the second ring 17, a second tapered surface 19 that opens upward is formed on the inner circumferential surface of the opening 13fJ. In this case, if the thickness of the disk 11 is 1.2 mm, a vertical surface is formed on the inner surface of the opening in the second ring 17 in a range of 0.6 mm, and the remaining upper part is formed with a vertical surface on the inner surface of the opening of the second ring 17. The opening angle θ2 of this tapered surface 19 is set to, for example, 45''.

In the case of forming a protective film on the disk 11, a coating film is formed by applying a paint that is cured by irradiating the recording area of the disk 11 with ultraviolet rays, as described above. This coating film 20 is formed by rotating the disk 11 at low speed, for example.
It is formed by dropping a predetermined paint onto this rotating disk 11, and then by rotating the disk at high speed, the dropped paint is formed as a uniform thin film on the disk surface. It is. In this case, some of the dropped paint is transferred to the disk 11.
The coating film 20 hangs down to the outer circumferential surface of the disk 11, and the coating film 20 is extended and formed on the outer circumferential surface of the disk 11 while the disk 11 is supported by the tray 12. The second tapered surface 19 prevents the disk supports F and 1j (13) from coming into contact with the outer peripheral surface of the disk II.

When the disc 1 is placed on such a tray 12 and the coating film 20 is irradiated with ultraviolet light using a mercury lamp or the like, the light source is usually set above the disc 11. Therefore, the coating film 20 on the surface of the disk 11 is well irradiated with ultraviolet rays, and the coating film irradiated with the ultraviolet rays is cured. However, the coating film formed on the outer periphery of the disk 11 is not well irradiated with ultraviolet rays from the lamp light source above, and the coating film in this area may not be cured. However, if the tray 12 as described above is used, the light from the lamp light source is reflected by n·1 at the second tapered surface 19, and even the outer peripheral side surface of the disk 11 can be irradiated with ultraviolet rays. That is, disk 11
Even the coating film 20 extending to the outer periphery of the disc is subjected to a reliable hardening process, and the work of forming a protective film on the disc can be carried out smoothly and reliably. be.

The tray 12 further includes a stopper 211 and a stopper 211 located at the front end of the tray 12 in the conveying direction.
12 are provided. These stoppers 211 and 21
2 is set so as to be planted in accordance with the position of the inner wall of the opening of the second ring 17 by, for example, a leaf spring, and the tray 12 that is being transported with the disk 11 placed thereon suddenly This is to prevent the disc II from coming off the tray 12 when the disc II is stopped.

[Effects of the Invention] According to the present invention, the disk can be transported in a securely protected state and transported to various work processes, and the surface of the disk can be hardened by ultraviolet irradiation. Even if the disc is transported to the ultraviolet irradiation process after coating with a coating material, it will be possible to reliably irradiate the coating film with the above amount of UV rays.For example, if the surface of a compact disc is It is possible to safely and reliably perform the work of forming a protective film on the surface of the material.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a disk transport tray according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line 2--2 in FIG. DESCRIPTION OF SYMBOLS 11... Disk, 12... Tray, 13... Base, 14a-14d... Guide edge, 15a, 1
5b--Lock plate, 16--First ring,
17...Second ring, 18...First note,
19...Second Theba. Applicant's agent Patent attorney Takehiko Suzue 2nd D-1

Claims (1)

[Claims] A base having an opening in the center and forming a guide surface on the periphery, and a periphery of a disk to be transported supported by a portion of the base corresponding to the opening. a first ring supporting the portion from below, and an opening corresponding to the diameter of the disk to be transported, which is set coaxially with the first ring and is set to be stacked on the first ring. A second ring is formed in the peripheral portion of the opening of the first ring on which the disk is placed, and only the peripheral edge portion of the disk is placed in contact with the first ring. The first thing I did was
a tapered surface of the ring, and an inner circumferential surface of the opening of the second ring, and a tapered surface of the first ring.
a second tapered surface formed to open upward except for a portion close to the ring, and the disk to be conveyed is set within the opening of the second ring, and the second ring has a peripheral edge. A disc transport tray characterized in that a portion of the tray is supported.