Super go stone and method for producing same

Abstract

To solve the problem that a black playing piece made of Nigishiki stone and a white playing piece polished by die-cutting a clam shell are very expensive and are out of reach of general Go players.SOLUTION: According to the present invention, it is possible to provide a "go" stone made of expensive clam shells, which is not only manufactured at a low cost by using disposable clams but also has an increased frictional coefficient with respect to a "go" board due to the unevenness of the surfaces thereof, so that it is possible to provide a "go" stone which is easy to use even though it is a high-grade product, thereby greatly contributing to the spread of "go" game, by using a "go" stone which is made of many crushed pieces of clam shells crushed into a size equal to or smaller than a square of 1mm, and is formed by bonding the crushed pieces using an adhesive.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a go stone and a method for manufacturing the same. [Background technology]

[0002] Go stones are tools used in the game of Go and Rengo, and are disc-shaped and come in two colors: black and white. A set of black and white stones is placed in a container called a Go box or Go utensil. When playing Go, they are sometimes simply called "stones."

[0003] Black go stones are made from black stones, with Nachi black stones being considered a masterpiece. White go stones are generally made from cut and polished clam shells, but clam go stones are very expensive, and in the Meiji period, go stones made from ceramic or bamboo existed. Glass go stones were prototyped in the Taisho period, but at the time they were made from ordinary glass rather than hardened glass, so they were brittle and prone to breaking. Later, products made from plastic or hard glass became available, and cheaper equipment also appeared.

[0004] In recent years, lightweight, portable go stones, go boards, and magnetic go sets have appeared, making it possible to play go casually on the go, and have greatly contributed to the spread of go. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-169019 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-067863 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the black Go stones made from Nachi black stone, which are considered to be masterpieces, and the white Go stones made from cut and polished clam shells, are extremely expensive and out of reach for the average Go enthusiast.

[0007] There have been some inventions and ideas relating to go stones, but Patent Document 1 describes a go stone that has a texture and weight that resembles natural materials, while Patent Document 2 describes a go stone that contains iron powder as a raw material. These are not go stones made from expensive materials, and no consideration has been given to friction or slip resistance. [Means for solving the problem]

[0008] In order to solve the above problem, the invention of claim 1 is a go stone that is made up of many crushed pieces of Nachi black stone that have been crushed into pieces of 1 mm square or less, and is bonded and shaped using an adhesive.

[0009] The invention of claim 2 is a go stone that is made of a large number of crushed pieces of clam shells that have been crushed to a size of 1 mm square or less, and is bonded and molded using an adhesive. [Effects of the Invention]

[0010] According to the present invention, not only can expensive clam shell go stones be produced at low cost by using discarded clams, but the uneven surface increases the coefficient of friction with the go board, providing go stones that are less slippery. It is now possible to provide go stones that are easy to use despite being made from the same material as high-quality stones, which will greatly contribute to the spread of the game of Go. [Brief explanation of the drawings]

[0011] [Figure 1] 1A and 1B are a plan view and a side view, respectively, of a Go stone 1 according to an embodiment of the present invention. [Figure 2] 1A and 1B are a plan view and a side view, respectively, of a Go stone 2 according to an embodiment of the present invention. [Figure 3] 1 is a flowchart of the manufacturing process of Go stones 1 or 2 according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiments are examples for explaining the present invention, and are not intended to limit the present invention to only these embodiments. Furthermore, the present invention can be modified in various ways without departing from the gist of the present invention. Furthermore, the same components in each drawing will be designated by the same reference numerals whenever possible, and redundant explanations will be omitted.

[0013] <Embodiment 1> First, we will explain the materials that make up the black go stone 1 of embodiment 1. Go stone 1 is made by crushing Nachi black stone B in a crusher and bonding crushed pieces 11 together with adhesive 21. Figure 1 shows a) a plan view and b) a side view of go stone 1 according to an embodiment of the present invention.

[0014] Nachi no Kuroishi B is crushed in a crusher to produce crushed pieces 11. Crushers for crushing Nachi no Kuroishi B include jaw crushers, which crush stones and shells between fixed and movable jaws; hammer mills, which crush materials with high-speed rotating hammers; ball mills, which grind and crush materials by placing steel balls inside a rotating drum; roller mills, which compress and crush materials between a rotating roller and a fixed surface; disc mills, which grind and crush materials with a disc-shaped grinding surface; impact crushers, which crush materials between a high-speed rotating rotor and a fixed block; and pin mills, which grind materials with high-speed rotating pins. However, the type of crusher is not specified. Crushed pieces 11 are preferably 1 mm square or less. Excessive crushing reduces friction during molding, so preferred crushers include hammer mills, roller mills, disc mills, and impact crushers.

[0015] The adhesive 21 is used when generating the crushed pieces 11. A 3D printer may be used for molding, but the type is not particularly specified as long as it can be molded into the shape shown in Figure 1. Furthermore, H1 shown in Figure 1 is not particularly specified, but considering the standards for Go stones, it is preferable that it be 7.5 mm to 9.2 mm. Furthermore, the diameter D1 of the Go stone 1 is not particularly specified, but considering the standards, it is preferable that it be 22.2 mm.

[0016] Examples of adhesives 21 that produce pulverized fragments 11 include epoxy adhesives made by mixing resin and a hardener, hot melt adhesives that are melted by heat, silicone adhesives that are water-resistant, heat-resistant, and flexible, and organic solvent-based adhesives, but no particular adhesive is specified here.

[0017] It is preferable that one Go set contains 301 black Go stones 1 of the first embodiment, plus two extra stones as spares.

[0018] <Embodiment 2> First, we will explain the materials that make up the white go stone 2 of embodiment 2. The go stone 2 is made by grinding clam shells C in a grinder and bonding them together with adhesive 21. Figure 2 shows a) a plan view and b) a side view of the go stone 2 according to the embodiment of the present invention.

[0019] The clam shells C are crushed in a crusher to produce crushed pieces 12. Crushers for crushing the clam shells C include, similar to the crusher used to crush the Nachi Kuroishi B, jaw crushers, which crush stones and shells between fixed and movable jaws; hammer mills, which crush materials with high-speed rotating hammers; ball mills, which grind and crush materials by placing steel balls inside a rotating drum; roller mills, which compress and crush materials between a rotating roller and a fixed surface; disc mills, which grind and crush materials with a disc-shaped grinding surface; impact crushers, which crush materials between a high-speed rotating rotor and a fixed block; and pin mills, which grind materials with high-speed rotating pins. However, the type of crusher is not specified. It is preferable that the crushed pieces 12 be 1 mm square or less. Excessive crushing reduces friction during molding, so preferred crushers include hammer mills, roller mills, disc mills, and impact crushers.

[0020] Adhesive 21 is used to generate crushed pieces 12, just as when forming Nachi black stone B. A 3D printer may be used for molding, but the method and type are not particularly specified as long as it is possible to form the shape shown in Figure 2. H2 shown in Figure 2 is not particularly specified, but considering the standards for go stones, it is preferable that it be 7.5 mm to 9.2 mm. The diameter D2 of go stone 2 is also not particularly specified, but considering the standards, it is preferable that it be 21.9 mm, slightly smaller than go stone 1.

[0021] Examples of adhesives 21 that produce pulverized fragments 12 include epoxy adhesives made by mixing resin and a hardener, hot melt adhesives that are melted by heat, silicone adhesives that are water-resistant, heat-resistant, and flexible, and organic solvent-based adhesives, but no particular adhesive is specified here.

[0022] In the second embodiment, it is preferable that one Go set contains 300 white Go stones 2, plus two extra stones as spares.

[0023] <Manufacturing method> Next, an example of a method for manufacturing Go stones will be shown. Figure 1 is an image diagram of a Go stone 1 according to an embodiment of the present invention, and Figure 3 is a flowchart of the manufacturing process for Go stones 1 or 2 according to an embodiment of the present invention.

[0024] (Step S11) Nachi black stones B or clam shells C are crushed using a crusher.

[0025] (Step S12) Next, the crushed pieces 11 or 12 are molded using an adhesive 21 to produce Go stones 1 or 2. [Explanation of symbols]

[0026] 1 Go stone (black) 2 Go stones (white) 11 Shattered pieces (black) 12 Crushed pieces (white) 21 Adhesive

Claims

1. It is made from numerous pieces of Nachi black stone crushed into pieces of less than 1mm square, and is glued together and shaped using adhesive. Characteristic Go stones

2. It is made of a large number of crushed pieces of clam shells crushed to less than 1mm square, and is glued together and molded using adhesive. Characteristic Go stones

3. Nachi black stone is crushed into pieces of 1mm square or less using a crusher, and then glued together with adhesive to form the shape. A method for manufacturing go stones characterized by the above

4. Clam shells are crushed into pieces of 1mm square or less using a crusher, and then glued together with an adhesive to form a mold. A method for manufacturing go stones characterized by the above

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