JP2002144799A - Facet ornament and processing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a facet ornament wherein a geometric pattern having a gradation or a feel of three dimensions appears on the surface of crystal glass in a facet. SOLUTION: In the body of double-plated crystal glass, transparent glass 1 of the surface layer is formed in the shape of an elliptic sphere of a cabochon type, while colored glass 2 of the rear layer is carved in the shape of the letter V. Thereby the facet ornament whereon the geometric pattern appears is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a geometric pattern formed by engraving a back layer in a V-shape on a crystal glass surface of a facet so that a geometric pattern having a gradation and a three-dimensional appearance is raised. The present invention relates to a face decoration and a processing method thereof.

[0002]

2. Description of the Related Art The face of a facet has a long history, such as engraving a geometric pattern or the like on a transparent or colored glass fabric with a polishing machine, and polishing the cut (carved) surface to finish the shine of glass by refraction of light. It is a traditional technique to make geometric patterns look beautiful. Satsuma Kiriko is commonly known as one of the facets, and it is characterized by the fact that the cut surface is translucent and pale because the surface is thickly covered using colored cover glass as a material. Is what it is.

[0003] Further, the conventional facet processing is a technique of engraving on the surface layer of a pattern in which various patterns are combined by changing the shape and depth of a cut surface by changing the angle and shape of the cross section of a blade of a polishing machine. Met. By using crystal glass as the glass material used for the facet, the transparency of the glass and the pattern engraved on the surface layer made it a popular glass product with a sense of quality, exclusively for decorative articles and tableware.

[0004]

However, since the above-mentioned conventional facets have a cut surface of a pattern on the surface layer, they tend to be flawed and require careful handling. Also, when a facet for carving a pattern on a surface layer is used as a jewelry item, if a slight flaw occurs on the surface layer, the refractive index of light on the cut surface changes, and the beauty of the carved surface layer due to the refraction of light is reduced. A problem arises in that complexity is reduced. For this reason, there is a demand for facet ornaments having a geometric pattern exhibiting luminance that cannot be expressed by conventional facets.

[0005]

According to the present invention, a facet layer is a colorless transparent crystal glass and a back layer is a color glass double-covered crystal glass, and a geometric pattern is engraved on the back layer. Accordingly, an object of the present invention is to provide a facet ornament having a pattern and a three-dimensional effect by a gradation on the face of the facet, and a processing method therefor. That is, (1) it is composed of two layers of transparent glass and colored glass, the surface layer is made of transparent glass and formed into a hemispherical or semi-elliptical spherical shape, and the colored glass of the back layer is engraved with a geometric pattern. This is a face decoration item. (2) The facet decoration according to (1), wherein the surface layer is made of a colorless and transparent crystal glass molded into a cabochon type, and the back layer is made of a substantially flat colored glass. (3) The face decoration according to the above (1) or (2), wherein the colored glass of the back layer is engraved in a V-shape to form a star-shaped pattern. (4) A process of forming two layers of colorless and transparent glass and colored glass, the surface layer being colorless and forming a hemispherical or semi-elliptical sphere, and the backing layer being formed of colored glass and a V-shaped engraving process. The present invention is a method for processing faceted jewelry, which is characterized in that it is formed through the following.

[0006]

Embodiments of the present invention will be described with reference to the drawings showing examples. FIG. 1A is a perspective view of a double-covered crystal glass cloth made of a transparent glass 1 and a colored glass 2, and FIG. 1B is a perspective view of a piece piece cut out of the cloth. FIG. 2A is a perspective view in which a gripping bar 3 is attached to the facet piece, and FIG. 2B is a cabochon type rough cutting of the transparent glass 1 of the facet piece using a rotating disk 4 made of iron and sand. FIG. 2C is a perspective view in which the surface of the cabochon-shaped transparent glass 1 is polished with a finely polished sand 5A using a wooden turntable 4A. FIG. 3A is a perspective view of a facet piece formed by forming the surface transparent glass 1 into a cabochon shape. FIG. 3B is a perspective view when the surface of the transparent glass 1 of the facet piece is polished and polished. FIG. 4 is a perspective view of engraving the colored glass 2 of the back layer of the facet piece with the diamond foil 6, and engraving the colored glass 2 of the back layer of the facet piece as shown in FIGS. FIG. 7B is a cross-sectional view taken along the line AA of FIG. 7A. (A) of FIG.
(B), (c) is a plan view of a facet piece as seen from the transparent glass 1 on the surface layer of the geometric pattern engraved on the colored glass 2 as described above.

Hereinafter, the manufacturing process of the present invention will be described with reference to the flowchart shown in FIG. The manufacturing process is roughly divided into a forming process of the transparent glass 1 of the surface layer, which is cut, formed, polished and polished from the cloth, and a colored glass 2 of the back layer, as shown in the flow chart shown in FIG. It consists of a backside process of engraving the backside to apply a geometric pattern, engraving the backside, engraving the backside, polishing the backside and polishing the backside. In the cutting step, the cloth of the cylindrical cup as shown in FIG. 1A is cut into pieces as shown in FIG. 1B. The cutting is done by adding a processing allowance (margin) to the size of the workpiece with a diamond cutter of No. 100 to No. 140,
When the workpiece is a cabochon having an elliptical sphere, the back layer is a rectangular parallelepiped piece having a two-layer structure composed of a colored glass 2 and a transparent glass 1 as shown in FIG.

The processing steps of the surface transparent glass 1 will now be described. As shown in FIG. 2 (a), after the gripping bar 3 is adhered to the colored glass 2 of the piece, the gripping bar of the piece is cut off. 3 is gripped by hand, and the outer periphery of the colored glass 2 of the back layer is processed with a diamond foil (No. 180 to No. 220) to form an oval sphere. Then, as shown in FIG. 2 (b), the facet piece is attached to an iron turntable 4 with diamond sand 5 (particle size No. 100 to No. 140), and the surface transparent glass 1 is formed into a cabochon type. Turn the turntable 4 into a turntable 4 made of wood such as a tub, and rotate it.
The surface layer is polished and smoothed while attaching 5 to the turntable 4. For further smoothing, as shown in FIG. 2 (c), polished sand (particle size 600 to 700)
No.) After polishing and smoothing the surface while applying 5A,
Further, a cloth buff rotating plate (not shown) is rotated at a high speed to buff and polish. Fig. 3
The rough surface of the transparent glass 1 as shown in FIG. 3A has a high transparency and a smooth surface as shown in FIG. 3B. In order to make the gradation effect more effective, it is preferable to make the transparent glass 1 thicker than the colored glass 2 and further increase the transparency.

Next, the processing steps of the colored glass 2 as the back layer will be described. Remove the grip bar 3 from the colored glass 2,
On the colored glass 2, draw a marker of a U-shaped reference line. The transparent glass 1 of the facet piece is grasped by hand, and along the reference line, as shown in FIG.
No. 220) 6 is applied from below, and carved into a cross shape with a small cut, and the face is changed so that the back surface has a U-shaped pattern. In addition, the depth of the engraving is shallow at first, and gradually increases. In the first engraving, the grain size of the diamond foil 6 is set to about 200, and the grain size is gradually reduced to be smooth. The number of the diamond foil can be properly used according to the fineness of the engraved geometric pattern.

In the engraving process of the colored glass 2 of the back layer, as shown in FIGS. 5, 6, and 7A, as the engraving proceeds, a V-shape is formed from the center of the colored glass 2 to the edge. The cutting angle of the engraving 7 increases,
A ridge line 7a between the valleys of the V-shaped engraving 7 extends to the outer periphery, and finally has a shape as shown in FIG.

FIGS. 8 (a), 8 (b) and 8 (c) show a star-shaped geometric pattern of the V-shaped engraving 7 of the back layer viewed from the surface of the facet piece as the engraving step of the back layer proceeds. And correspond to the engraving process of FIGS. 5, 6 and 7A, respectively. Since the angle of the V-shaped engraving 7 is increased toward the edge and the back layer of the colored glass 2 is engraved, the star-shaped pattern expands toward the edge, and the engraving surface of the star-shaped pattern gradually increases. At the same time as it emerges, a gradation that shifts to a star-like pattern appears.

After the engraving process shown in FIG.
Is adhered to the transparent glass 1 and an abrasive is attached to the tip of the rubber body of the rubber disk to further polish and engrave the engraved surface and edge surface of the colored glass 2. At this stage, the face piece for jewelry is completed.

The geometrical pattern formed on the colored glass 2 on the back side is not limited to the star-like geometrical pattern, but may be any shape as long as it gives an aesthetic effect.

Crystal glass was selected as a facet material in order to make the transparent glass 1 more transparent with the aesthetic effect of the geometric pattern applied to the back layer. The material is not limited to this as long as the material is high.

[0015]

9 (a) and 9 (b) show an embodiment in which a piece is used as a ring as a facet for jewelry. It is mounted on the holding stand 8 with a ring for holding the piece of jewelry piece, and the piece of piece made into a product is sandwiched between the claws 8a to obtain a piece of jewelry as shown in FIG. 9B. A star-shaped pattern rises three-dimensionally on the surface of the facet piece, and gradation is observed near the star-shaped edge.

[0016]

As described above, in the double-covered crystal glass in which the surface layer of the facet piece is a cabochon type and the back layer is colored, the cabochon type crystal glass of the surface layer and the V-shaped engraving of the back layer are colored. The geometric pattern emerges three-dimensionally on the surface due to the light transmission and refraction of the glass, and at the same time, a gradation appears, giving the beauty of the back layer engraving, which could not be expressed with conventional facets.

In addition, since the back layer is engraved and the surface is smooth, it is possible to prevent injuries and flaws on the engraved surface.

[Brief description of the drawings]

FIG. 1 (a) is a perspective view of a double-glazed crystal glass fabric. (B) It is a perspective view of the piece piece cut off from the cloth.

FIG. 2A is a perspective view showing a state in which a gripping bar is attached to a piece of facet. (B) It is a perspective view which shows the process of shape | molding a piece of piece into a cabochon type | mold. (C) It is a perspective view which shows the process of grinding and polishing the surface of a facet piece.

FIG. 3A is a perspective view of a facet piece formed into a cabochon type. (B) It is a perspective view of the piece of the face which polished the surface.

FIG. 4 is a perspective view showing a process of engraving a back layer.

FIG. 5 is a plan view of a process of engraving a back layer.

FIG. 6 is a plan view of a process of engraving a back layer.

FIG. 7A is a plan view of a process of engraving a back layer. (B) It is sectional drawing of AA of FIG.7 (a).

FIG. 8 (a) is a plan view of FIG. 5 viewed from the surface. (B) It is the top view which looked at FIG. 6 from the surface. (C) It is the top view which looked at FIG. 7 (a) from the surface.

FIG. 9A is a perspective view of a holding stand with a ring. (B) It is the perspective view which used the face decoration item concerning this invention for a ring.

FIG. 10 is a flowchart showing a manufacturing process of a face decoration item.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transparent glass 2 Colored glass 3 Grasping rod 4, 4A turntable 5 Diamond sand 5A Polishing sand 6 Diamond foil 7 V-shaped engraving 7a Ridge line 8 Holder with ring 8a Claw

Claims (4)

[Claims] 1. A transparent glass and a hemispherical or semi-elliptical spherical surface are formed from transparent glass and colored glass, and a geometrical pattern is engraved on the colored glass of the back layer. Kiriko jewelry. 2. The face piece decoration according to claim 1, wherein the surface layer is made of a colorless and transparent crystal glass molded into a cabochon type, and the back layer is made of substantially flat colored glass. 3. The face decoration according to claim 1, wherein the colored glass of the back layer is subjected to a V-shaped engraving process to form a star-shaped pattern. 4. A process of forming a colorless transparent glass and a colored glass into two layers, the surface layer being made colorless and being formed into a hemispherical or semi-elliptical sphere, and the backing layer being made of colored glass and V-shaped engraving. A facet decoration processing method characterized by being formed through a processing step.