JP2008012777A - Ornamental body and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ornamental body which has a feel like metallic luster and depth without using a metallic material and also enables design of a high degree of freedom, and a manufacturing method thereof. <P>SOLUTION: The ornamental body has a reflective thin film part 2 formed inside a main body part 1 consisting of a transparent resin material. The reflective thin film part 2 is formed in a shape obtained by cutting the upper part of a regular hexagonal pyramid, and when viewed from above, the surface of the reflective thin film part 2 makes total reflection and presents the metallic luster like silver according to an angle of view. Besides, the upper half of the main body part 1 is transparent, while the lower half is transparent and colored. A transparent material constituting the reflective thin film part 2 has a smaller refractive index than the transparent resin material of the main body part 1 and the surface making the total reflection according to the angle of view is brought about. Therefore the feel like the metallic luster can be obtained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a decorative body in which a reflecting surface of a predetermined shape is designed in a transparent main body.

Jewels and precious metals have been used as ornaments since ancient times, but in addition to these natural products, various artifacts have been developed. Many decorations have been created so far by devising the design, color, texture, etc. using materials such as metal, ceramic or plastic. For example, in the field of eyeglasses, Patent Document 1 describes that a stained decorative body is formed by fitting a resin plate having an uneven pattern into a through-hole of a non-decorative member and injecting a resin material in a fluid state into the resin plate. Has been. Further, Patent Document 2 describes a method for forming a resin decoration part in which a base material is attached to a hole formed through a part of spectacles, a liquid resin material is injected, and the base material is released after the resin material is cured. Has been. Patent Document 3 describes that a decorative part is formed by applying an acrylic epoxy resin to the surface of a base material of a spectacle frame and studded with a screw. Patent Document 4 describes that a color length change is expressed by appropriately removing the surface layer of a laminated synthetic resin spectacle component including a plurality of synthetic resin layers having different color tones. Further, Patent Document 5 describes that a sheet in which an opening of a spectacle frame is filled with a resin and a pattern or characters are formed in the resin layer is embedded. Further, in Patent Document 6, a hollow is provided on the surface of the spectacle frame, a resin material in a fluid state is injected and solidified to form a decorative body, and a concave portion is formed on the surface of the decorative body to inject and solidify resin materials of different colors. A method for decorating a spectacle frame is described.
JP 2005-338316 A JP 2005-199534 A JP 2004-177909 A JP 2000-292553 A JP 09-090294 A Japanese Patent Application Laid-Open No. 06-034922

  In the above-mentioned prior art documents, the decorative effect of glasses is enhanced by utilizing the ease of processing of resin materials and the variety of colors. Because it is difficult, the luster and texture are enhanced by using screws and metal materials.

  However, when embedding decorative materials such as metal materials in resin materials, processing of the decorative materials themselves must be performed, and processing for embedding the decorative materials is necessary. Is done. For this reason, it has been impossible to create a decorative product that makes full use of the ease of processing of the resin material.

  Therefore, an object of the present invention is to provide a decorative body that has a texture and depth such as metallic luster without using a metal material, and enables a highly flexible design, and a method for manufacturing the decorative body.

  A decorative body according to the present invention includes a main body portion made of a transparent resin material, and at least one made of a transparent elastomer that is provided in the main body portion in a predetermined shape and has the same refractive index as that of the transparent resin material. It is provided with a decorative block portion and a reflective thin film portion formed of a transparent material having a refractive index smaller than that of the transparent resin material and formed in close contact with at least a part between the main body portion and the decorative block portion. It is characterized by. Further, the transparent resin material is a polyamide-based resin material, and the transparent material is silicon oil. Furthermore, the transparent resin material is colored.

  A spectacle frame according to the present invention is characterized in that the decorative body is embedded.

  A method of manufacturing a decorative body according to the present invention includes: a main body molding step of molding a plurality of main body dividing members that form at least one internal space of a predetermined shape on a joint surface that is in close contact with each other using a transparent resin material; A block forming step of forming a decorative block having a shape matching the internal space using a transparent elastomer having the same refractive index as the material, and at least a part of a surface defining the internal space and / or a surface of the decorative block An attachment step of attaching a liquid transparent material having a refractive index smaller than that of the transparent resin material, and after attaching the transparent material, the decoration block is accommodated in the internal space and the joining surface of the main body dividing member is adhered And an adhering step. Further, the main body forming step is characterized in that the main body dividing member is colored in different colors.

  The decorative body according to the present invention is a reflection made of a transparent material having a refractive index smaller than that of the transparent resin material between the main body portion made of the transparent resin material and the decorative block portion made of a transparent elastomer having the same refractive index as the transparent resin material. Since it has a thin film part, when the internal reflective thin film part is viewed from the outside of the decorative body, total reflection of light occurs in the reflective thin film part depending on the angle so that a metallic luster such as silver appears. Become. Moreover, since the main body part and the decoration block part are formed of a resin material and an elastomer, the shape thereof can be easily processed into various designs, and can be formed into a three-dimensional shape such as a diamond cut. Since the main body part and the decorative block part are both transparent and have the same refractive index, the distinction between the two cannot be visually recognized from the outside of the decorative body, and the reflective thin film part is also made of a transparent material. Only the surface appears to appear inside the decorative body, making it possible to bring out the texture and depth of metallic luster.

  Further, by using a polyamide-based resin material as the transparent resin material and silicon oil as the transparent material, a highly transparent decorative product can be obtained. Further, by using liquid silicone oil, a thin film can be reliably formed on the surface of various shapes of decorative block portions.

  In addition, when the transparent resin material is colored, color shading appears due to the total reflection of light from the reflective thin film portion, and the decoration effect can be further enhanced.

  In the method for manufacturing a decorative body according to the present invention, a plurality of main body dividing members that form at least one internal space of a predetermined shape are formed, and the decorative block formed to match the internal space using an elastomer is formed into the internal space. The decorative block comes into close contact with the surface that delimits the inner space due to the elasticity of the elastomer, and the liquid transparent material adhering between the two spreads over the entire adhering surface. As a result, a substantially uniform thin film is formed, and a reflective surface faithfully corresponding to the design shape of the decorative block can be exposed.

  Hereinafter, embodiments according to the present invention will be described in detail. The embodiments described below are preferable specific examples for carrying out the present invention, and thus various technical limitations are made. However, the present invention is particularly limited in the following description. Unless otherwise specified, the present invention is not limited to these forms.

  FIG. 1 shows a plan view (FIG. 1 (a)), a front view (FIG. 1 (b)), and a bottom view (FIG. 1 (c)) according to an embodiment of the present invention. The decorative body has a reflective thin film portion 2 formed inside a body portion 1 made of a transparent resin material. The reflective thin film portion 2 is formed in a shape obtained by cutting the upper part of a regular hexagonal pyramid, and when viewed from above, the surface of the reflective thin film portion 2 is totally reflected to exhibit a metallic luster such as silver. become. The upper half of the main body 1 is transparent, but the lower half is transparent and colored.

  FIG. 2 is an enlarged cross-sectional view of one reflective thin film portion 2 in the AA sectional view of FIG. The reflective thin film portion 2 is formed between the main body portion 1 and the decorative block portion 3, and when viewed from above, the reflective thin film portion is totally reflected to show a metallic luster as shown by the light beam L1, but the horizontal plane is upward. When viewed from above, the light beam passes through the reflective thin film portion 2 and appears transparent as indicated by the light beam L2. Since the surface that expresses the metallic luster due to such total reflection varies depending on the viewing angle, the metallic luster texture, three-dimensionality, and depth of design can be brought out.

  On the contrary, when the ornamental body is viewed from the bottom side, it appears black on the inclined surface where the reflective thin film portion 2 is totally reflected, and the central horizontal surface has a clear translucency due to the color transmitted through the light. An unprecedented design is displayed inside the decorative body.

  The reason why the decoration effect by total reflection can be obtained is that the refractive index of the material constituting the main body 1 and the decoration block 3 is set larger than the refractive index of the material constituting the reflective thin film portion 2. Is based. If the main body part 1 and the decoration block part 3 are made of a transparent material with the same refractive index and the reflective thin film part 2 is also a transparent material, only the total reflection surface is visually recognized and appears to float inside the decoration body. And since the total reflection surface changes according to the viewing angle, an interesting decoration effect can be obtained.

  Examples of the main body 1 include transparent resin materials such as polyester resins, polyolefin resins, polyamide resins, polyvinyl chloride resins, polyurethane resins, polycarbonate resins, acrylic resins, and fluorine resins. Moreover, it is good to use the elastomer of such a transparent resin material as the decoration block part 3, and it becomes easy to set to the same refractive index by using the same kind of resin material. The resin material used for the main body part 1 and the decoration block part 3 may be mixed with additives such as colorants and decoration materials such as gold and silver fine powders so as not to affect the transparency and refractive index. .

  Examples of the reflective thin film portion 2 include liquid transparent materials such as silicon oil, and the refractive index is set to be smaller than that of the transparent resin material of the main body portion 1. Since such a transparent material has characteristics of low viscosity and high fluidity, it can be spread evenly between the main body portion 1 and the decorative block portion 3 to realize a shape as designed.

  Next, the manufacturing method regarding this embodiment is demonstrated. When manufacturing a decorative body, first, the main body division member which comprises the main-body part 1 is shape | molded. FIG. 3 is a perspective view showing the main body dividing members 1 a and 1 b constituting the main body 1. The main body dividing member 1a is formed into a rectangular parallelepiped shape by injection molding using a transparent resin material as a raw material. A plurality of concave portions 1c having the same shape as the decorative block 3 are formed on the joint surface. Further, the main body dividing member 1b is formed into a rectangular parallelepiped shape by injection molding using a material obtained by uniformly mixing a colorant in the same transparent resin material as the main body dividing member 1a. The joint surface of the main body dividing member 1b is formed in a flat shape.

  The main body dividing member can be formed in a shape other than the rectangular parallelepiped shape as in this example, and may be formed in various shapes according to the shape of the decorative body. Further, the joining surfaces of the main body dividing members may be in any shape as long as they are in close contact with each other, and are not particularly limited. In addition, for the concave portion that accommodates the decorative block formed on the joint surface, it is sufficient that the inner space of the concave portion combined when formed and joined on both joint surfaces matches the decorative block, and matches the shape of the decorative block. The concave portions may be formed as appropriate. Furthermore, you may make it form a recessed part by cutting, after shape | molding a main body division member.

  Next, a decorative block is formed. FIG. 4 is a perspective view showing the decorative block 3a. The decorative block 3a is molded by injection molding using a transparent elastomer as a raw material. As described above, the elastomer as the raw material has the same refractive index as that of the transparent resin material used for the main body dividing member. And the shape of the decoration block 3a is shape | molded in the shape corresponding to the recessed part formed in the joint surface of a main body division member.

  FIG. 5 is an explanatory diagram illustrating a process of creating a decorative body by combining a main body dividing member and a decorative block. When combining the members, first, an appropriate amount of a liquid transparent material to be a reflective thin film portion is attached to the surface of the decorative block 3a. The liquid transparent material may be attached by a method such as spraying with a spray or the like, application with a brush or the like, or immersion. When the decoration block is small, the spraying method can be applied almost uniformly to the whole.

  When a liquid transparent material is attached to the surface of the decoration block 3a, it may be attached to the surface on which the reflective thin film portion is formed, and may not be attached to the entire surface. Moreover, when making a liquid transparent material adhere, you may adhere to the inner surface of the recessed part 1c, and you may adhere to both the surface of the decoration block 3a, and the inner surface of the recessed part 1c.

  And the decoration block 3a to which the liquid transparent material adhered is fitted and accommodated in the recessed part 1c formed in the joint surface of the main body division member 1a. A transparent adhesive is applied in advance to the joining surface of the main body dividing member 1b, and the joining surface of the main body dividing member 1b is joined to the joining surface of the main body dividing member 1a in which the decoration block 3a is accommodated in a vacuum environment. Then press the two together with a press machine.

  As an adhesive for bonding the main body dividing member, it is preferable to use a transparent resin adhesive. Examples of such adhesives include adhesives such as polyamide-based resins, polyester-based resins, polyethylene-based resins, polyvinyl chloride-based resins, and polyolefin-based resins, and the same type of adhesive as the transparent resin material of the main body dividing member is used. Is preferred.

  When the main body dividing member is bonded and pressure-bonded, the decorative block 3a is formed in the same shape as the recess 1c. Therefore, when the liquid transparent material is attached and accommodated in the recess 1c, the liquid transparent material is attached. Although it protrudes slightly from the recessed part 1c, since the decoration block 3a consists of elastomer, it will be in the state crimped | contacted by the main body division | segmentation member 1b and crimped | compressed in the recessed part 1c. Therefore, the liquid transparent material adhering to the surface of the decoration block 3a spreads evenly over the entire surface and is held in close contact with the inner surface of the recess 1c. In addition, since bonding and pressure bonding are performed in a vacuum state, bubbles do not remain between the concave portion 1c and the decorative block 3a, and a uniform reflective thin film portion is formed.

  FIG. 6 is a perspective view of a spectacle frame to which a rectangular parallelepiped decorative body according to this embodiment is attached. In this example, the decorative body 10 is embedded in the temple 11a of the resin spectacle frame 11, which is suitable as a one-point decorative body. Moreover, since the decorative body is also made of a resin material, the embedding process can be easily performed. The size and shape of the decorative body can also be easily changed, and can be easily changed and embedded according to the embedded portion of the modern or rim portion other than the temple.

  Using a polyamide-based resin material (manufactured by Daicel Degussa Co., Ltd.) as the raw material for the main body dividing member, and using a polyamide-based resin elastomer (manufactured by EMS Co.) as the raw material for the decorative block, injection into a shape as shown in FIG. Molded. Next, an appropriate amount of silicon oil (manufactured by Kozai Co., Ltd.) was attached to the surface of the decorative block by spraying, and was fitted into the recess of the main body dividing member and accommodated. Next, a transparent adhesive made of a polyamide-based resin was applied to the joint surface of the main body dividing member, the main body dividing members were bonded together in a vacuum, and both were pressure bonded by a press machine.

  The finished decorative body was formed so that the main body dividing members were bonded and joined, and a reflective thin film portion corresponding to the design of the decorative block was raised inside. In the reflective thin film part, the totally reflecting surface changes depending on the viewing angle, creating a metallic luster texture and depth.

It is the top view, front view, and fixed view regarding embodiment which concern on this invention. It is a partially expanded sectional view regarding the AA cross section of FIG. It is a perspective view which shows a main body division member. It is a perspective view which shows a decoration block. It is explanatory drawing which shows the manufacturing process regarding this embodiment. It is a perspective view which shows the spectacles frame which embedded the decoration body of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body part 2 Reflecting thin film part 3 Decoration block part

Claims (6)

  A main body portion made of a transparent resin material, at least one decorative block portion made of a transparent elastomer having a refractive index the same as that of the transparent resin material provided inside the main body portion in a predetermined shape, and the transparent resin A decorative body comprising a reflective thin film portion made of a transparent material having a refractive index smaller than that of the material and formed in close contact with at least a part between the main body portion and the decorative block portion.   The decorative body according to claim 1, wherein the transparent resin material is a polyamide-based resin material, and the transparent material is silicon oil.   The decorative body according to claim 1 or 2, wherein the transparent resin material is colored.   An eyeglass frame in which the decorative body according to any one of claims 1 to 3 is embedded.   A main body molding step of molding a plurality of main body dividing members that form at least one internal space of a predetermined shape on the joint surfaces that are in close contact with each other using a transparent resin material; and a transparent elastomer having the same refractive index as the transparent resin material And a block forming step for forming a decorative block having a shape matching the internal space, and a refractive index smaller than that of the transparent resin material on a surface defining the internal space and / or at least a part of the surface of the decorative block. An adhesion step of adhering a liquid transparent material, and an adhesion step of adhering a bonding surface of the main body dividing member by accommodating the decoration block in the internal space after the transparent material is adhered. A method for manufacturing a decorative body.   The manufacturing method according to claim 5, wherein in the main body forming step, the main body dividing member is colored and formed in different colors.

Images