JP3222041B2 - Packaging for optical products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container for optical products, which can be safely transported, because optical products which are easily damaged due to scratches, chips or the like, and whose optical characteristics are impaired by the attachment of dust, can be safely transported.

[0002]

2. Description of the Related Art In recent years, optical filters such as video cameras have been used. Such an optical filter is provided on both sides of an infrared cut glass, for example, as shown in Japanese Patent Application Laid-Open No. Hei 6-313811 filed by the present applicant in April 1993 and published in November 1994. It is known that a thin film of magnesium oxide is formed, and both sides of the thin film are sandwiched between quartz plates and formed into a substantially cubic shape. This type of optical product is used as being incorporated in an optical device such as a video camera.
Optical products alone are subject to commercial transactions. Therefore, it is desired that the manufactured optical product can be safely transported after being packed in a packaging container.

[0003] However, such optical products are easily damaged by careless handling, and in particular, magnesium fluoride thin films are easily scratched and unusable due to low mechanical strength. In addition, substances such as glass or quartz are liable to be broken or chipped due to, for example, impact or vibration during transportation, and if damaged, cannot be used as an optical product and must be discarded. There was a problem.

Conventionally, as a packaging container for transporting optical products such as optical filters, for example, a plastic container as shown in FIG. 4 has been used. In this container, a transparent vinyl chloride sheet is heated and press-molded with a press die, for example, a hexagonal recess 11 having a depth slightly larger than the dimension of the optical product to be packed is formed on one side of each other. Are connected and formed continuously. The optical products 12 each having a substantially cubic shape are fitted and fixed one by one into each of the recesses 11 of the container, and the optical products 12 are transported by covering them.
Accordingly, the ridge portion of the optical product is elastically held by the elasticity of the wall of the recess 11 of the container.

However, in the case of such a product, for example, in order to streamline the processing step, in the case of a product in which the chamfering of the ridge portion of the optical product is omitted, the ridge portion of the product is sharpened, so that the product is not transported. The wall of the container is scraped off by the vibration, shock, etc. of the container, generating fine plastic dust. When such dust adheres to the main surface of an optical product, its optical characteristics may be impaired and the optical product may not be usable. Further, if a large impact or the like acts during transportation, a ridge line portion of the optical product may be cracked or chipped, resulting in a defective product and being unusable.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to safely transport an optical product that is easily damaged, and to impair the optical characteristics of the product during transportation. It is an object of the present invention to provide an optical product packaging container having a simple structure.

[0007]

According to the present invention, an adhesive sheet is attached to a plate-like base made of a flexible plastic, and the optical product to be held is adhered to the position where the optical product is adhered to the adhesive sheet. A cushioning material was provided between the adhesive and the adhesive sheet, and a cover formed with a convex portion for protecting and storing each optical product in a separately defined space by molding a flexible plastic was put on the base. It is characterized by the following.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the packing container of the present invention will be described in detail with reference to a side sectional view of a main part shown in FIG. 1, a sectional view of a base and a cover shown in FIG. 2, and a plan view shown in FIG. explain. In the figure, reference numeral 1 denotes a base formed by forming a flexible plastic plate into a substantially rectangular shape. Such processing can be easily performed, for example, by heating the material of the base to an appropriate temperature and performing heat molding using a mold. And base 1
For example, a double-sided adhesive sheet 2 is adhered to substantially the entire inner surface. A cushion material 3 such as a thin sponge is disposed between the base 1 and the double-sided adhesive sheet 2.

Therefore, after the cushion material 3 is provided, the cushion material 3 can be easily fixed by attaching the double-sided adhesive sheet 2. Then, the optical product 4 is adhered and held on the double-sided adhesive sheet 2 from above the cushioning material 3 at a predetermined position.
, And a cellophane tape or the like is adhered and fixed to the peripheral edges of both to make a packaging container. In the cover 5, for example, in a state where the optical product 4 is stuck to the double-sided adhesive sheet 2, a concave portion 6 slightly larger than the outer shape of the optical product is formed in order to hold the optical product 4 in a space defined for each individual product. The optical product 4 is positioned at 6.

[0010] In this case, the optical product 4 is placed in the packing container.
Is stored, the optical product 4 does not directly contact the plastic of the container, but can be held by bonding one side surface to the double-sided adhesive sheet 2. Therefore, it is possible to transport safely and with good yield without being damaged by vibration, impact or the like during transportation or scraping the container to generate fine dust and the like. Even if the optical product 4 comes off the double-sided adhesive sheet 2 due to an unexpected impact or the like, each optical product 4 is held in the space defined separately, so that the optical product 4 held adjacently can be used. It is possible to prevent direct damage to each other and damage to each other, thereby preventing the damage from spreading in a chain.

Therefore, the optical product 4 that is damaged even in such a case can be limited to only the one that is detached from the double-sided adhesive sheet 2, so that the damage can be prevented from spreading and the damage can be minimized. The optical product 4 is adhered to and held by the double-sided adhesive sheet 2 during transportation. Therefore, even if a large impact is applied, the optical product 4 is damaged as long as the optical product 4 does not come off the double-sided adhesive sheet 2. Can be safely transported without

The present invention is not limited to the above embodiment. For example, if both sides of the cushion material have an adhesive function, the adhesive function of the adhesive sheet may be only one side.

As described above in detail, according to the present invention, there is provided a packaging container for optical products which can transport optical products which are easily damaged and easily damaged such as cracks and the like with good yield. can do.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a main part of one embodiment of a packing container of the present invention.

FIG. 2 is a sectional view of a base and a cover of the embodiment shown in FIG. 1 of the present invention.

FIG. 3 is a plan view of the packing container of the embodiment shown in FIG. 1 of the present invention.

FIG. 4 is a side sectional view showing an example of a conventional surface mount type crystal oscillator.

──────────────────────────────────────────────────の Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 85/86

Claims (4)

(57) [Claims] 1. A plate-shaped base made of a flexible plastic, an adhesive sheet stuck to one side of the base, and the base and the adhesive sheet corresponding to an adhesion position of an optical product to be held. A cushion material disposed between the adhesive sheets, and an optical product having one side adhered and held to the adhesive sheet corresponding to the position where the cushion material is fixed; and a flexible plastic molded. A cover formed with a concave portion corresponding to the optical product to cover the base and cover the optical product in a space defined separately, and a packaging container for the optical product. 2. An optical product packaging container according to claim 1, wherein the cushioning material is arranged in a plurality of strips. 3. An optical product packaging container according to claim 1, wherein bent portions overlapping each other are formed on the peripheral edges of the base and the cover. 4. A packaging container for an optical product according to claim 1, wherein the action material has an adhesive function.