KR102462262B1 - Billiard ball - Google Patents

Abstract

The present invention relates to a billiard ball, and more particularly, to a billiard ball in which a plurality of rods (16) are embedded and arranged in a spherical billiard ball main body (10) such that an end surface (16a) of the rods (16) can be indicated as a mark (14) on an outer surface (12) of the billiard ball. Each of the rods (16) is composed of a rod assembly (22) extending in a radial direction perpendicular to each side surface (20) of a central body (18), which is a regular polyhedron, disposed at an inner center of the billiard ball main body (10), and is embedded and molded in the billiard ball main body (10). The central body (18), which is a polyhedron of the rod assembly (22), is, for example, an icosahedron. According to the present invention, even if the number of marks (14) increases, the precise symmetry of the billiard ball main body (10) can be maintained and the marks (14) can be precisely displayed on the outer surface.

Description

billiard ball {BILLIARD BALL}

The present invention relates to a billiard ball, and more particularly, to a billiard ball in which a plurality of marks are displayed on the outer surface in various shapes, the precise symmetry of the billiard ball body is maintained even if the number of the marks increases, and the marks can be displayed on the outer surface will be.

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In general, on the outer surface of a billiard ball, a mark that serves as a standard for predicting the position of the restaurant is marked. Such marks are usually arranged such that one or more marks are displayed on the outer surface of the billiard ball, and it is recently known to have six marks.

Conventionally, it is known that a structure arranged to display such a mark on the outer surface of a billiard ball uses a mark by embedding a thin disk in a portion of a predetermined outer surface of the billiard ball, for example. However, when a mark is formed by embedding a thin disk in an outer surface of a billiard ball, there is a problem in that the disk constituting the mark is dropped or disappears due to impact or abrasion applied to the billiard ball.

As one of the prior art for solving this problem, a technique for displaying several marks on the outer surface of a billiard ball has been disclosed in Korean Patent Registration No. 10-0984379 (published on September 20, 2010). In the above patent document, one rod is embedded in the radial direction of the billiard ball body so that two marks are displayed on the outer surface of the billiard ball, so that both end surfaces of the rod exposed to the billiard ball outer surface form a mark. In addition, several rods are embedded in the body of the billiard ball so that six marks are formed on the outer surface of the billiard ball at positions in the up, down, left, right, and front and rear directions.

However, in this prior art, in order to embed the required number of rods in the billiard ball body for displaying or forming the billiard ball mark so that they can be integrated at the time of forming the billiard ball, above all, each end of the rods is connected to each other It is necessary that the rod be positioned very precisely in order to accurately align the ball's center of gravity.

However, the prior art only discloses that several rods are buried so that the center of gravity of the billiard ball exactly coincides with the center of the billiard ball. It doesn't offer a solution at all. This is particularly the case when the number of marks displayed on the outer surface of the billiard ball increases somewhat (eg, several to (several) tens), by precisely matching the ends of the large number of rods to the center point within the billiard ball body, the center of gravity It is almost impossible to achieve

In addition, when multiple rods are embedded in the billiard ball body, the angle between the rods is accurately maintained so that the cross-section of the rod, which is exposed to the outside surface of the billiard ball and forms a mark, can maintain a uniform distance or angle over the entire surface of the billiard ball. However, it is practically difficult to achieve this with the prior art presented so far.

1. Public Utility Model Publication 20-1996-0000538 (published on July 7, 1996) 2. Registered Patent Publication No. 10-0984379 (Announcement on Sep. 20, 2010) 3. Patent Publication No. 10-2011-0111185 (published on October 10, 2011) 4. Patent Publication No. 10-2012-0039302 (published on April 25, 2012)

The present invention has been devised in view of this in the prior art, in which a plurality of marks are displayed on the outer surface in various shapes, and even if the number of the marks is greatly increased, the marks are displayed on the outer surface while the precise symmetry of the billiard ball body is maintained. This is to provide a possible billiard ball.

The billiard ball of the present invention for solving the above problem is a billiard ball having a plurality of rods embedded in a main body, and each end surface of the plurality of rods is displayed as a respective mark on the outer surface of the billiard ball. , in particular, a central body composed of a regular polyhedron disposed at an inner center or a center of gravity of the billiard ball body separately from the plurality of rods, wherein each of the rods has a second end surface perpendicular to each side of the central body. It is attached and connected on each side and is arranged to extend in a radial direction from each side of the central body toward the outer surface of the billiard ball.

In this case, optionally, the number of the plurality of rods may be less than or equal to the number of side surfaces of the central body. Alternatively, the number of the rods may be in the range of up to 20.

Also, optionally, when the center of gravity and the inner center of the billiard ball body do not match, the center body may be disposed at the center of gravity.

Also, optionally, the centrosome may be one of a tetrahedron, a hexahedron, an octahedron, a dodecahedron, and an icosahedron. Alternatively, at least one of the plurality of rods may be a polygon having the same cross-section as the shape of each side of the central body, or at least one of the plurality of rods may be a polygon having a cross-section different from the shape of each side of the central body have. Alternatively, at least one of the plurality of rods may be a polygon having a polygonal or circular cross-section. Alternatively, at least one of the plurality of rods may have a cross section of a predetermined shape having a central point and having symmetry with respect to the central point.

Also, optionally, the central body and the plurality of rods may be made of the same material. Preferably, the material may be a phenolic resin.

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The present invention enables a plurality of marks to be displayed on the outer surface of a billiard ball, and the center of gravity of a rod assembly to which these rods are coupled is determined in a state where a plurality of rods, which are means for displaying these marks, are precisely spaced or angled from each other. Even if the number of the marks is increased by making them exactly coincide with the center of the ball, precise symmetry of the billiard ball body is maintained and the marks can be precisely displayed on the outer surface.

1 is a perspective view of a billiard ball showing a billiard ball according to the present invention, showing a plurality of marks on its outer surface;
2 is a perspective view of a central body in which a plurality of rods for displaying a mark are integrally disposed to constitute a rod assembly;
3 is a perspective view of a rod assembly showing a plurality of rods integrally extending in a radial direction perpendicular to each side of the central body shown in FIG. 2;
Fig. 4 is a cross-sectional view of a billiard ball showing that the rod assembly is embedded in the billiard ball body and the end face of each rod forms a mark on the billiard ball outer surface;

As used herein, the term "regular polyhedron" refers to a billiard ball in which all faces are congruent regular polygons among convex polyhedra and the number of faces meeting at each vertex is the same, for example, a generally spherical billiard ball as in the present invention. A shape that can form the center of gravity of These regular polyhedra are generally tetrahedron, hexahedron, octahedron, dodecahedron, and icosahedron.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 shows an outer surface 12 of a billiard ball body 10 according to the present invention. In addition, FIG. 2 is a perspective view of a central body in which a plurality of rods for displaying a mark are integrally disposed to constitute a rod assembly. In addition, FIG. 3 is a perspective view of a rod assembly showing that a plurality of rods are integrally extended in a radial direction from each side of the central body shown in FIG. It is a cross-sectional view of a billiard ball showing the end face forming a mark on the outer surface of the billiard ball.

First, referring to FIG. 1 , the outer surface 12 of the billiard ball body 10 has a generally spherical shape, and a plurality of marks 14 are displayed on the entire outer surface 12 at uniform intervals. This mark 14 is generally used as a reference mark capable of predicting the position of our shop during, for example, a billiards game. In the present invention, a plurality of such marks 14 may be displayed on the outer surface 12 of the billiard ball body 10, and 20 are indicated for convenience in the illustrated embodiment, but the present invention is not limited thereto. can be a number.

In the present invention, the mark 14 is the end face of the rod 16 (described in detail in Figs. 3 and 4) embedded in the billiard ball body 10, that is, the outer face 12 of the billiard ball body 10. ) is formed by the end face of the rod 16 exposed to.

In addition, in the present invention, the rod 16 can maintain a uniform and constant interval or angle in all directions by embedding a plurality of rods 16 in the billiard ball body 10 . is configured to

In the illustrated embodiment of the present invention, the number of rods 16 embedded in the billiard ball body 10 is 20, and in order to display 20 marks 14 on the outer surface 12 of the billiard ball body 10 The number of rods 16 extending in the radial direction from the center of the billiard ball body 10 is 20, but as described above, in the present invention, the number of rods 16 is not limited to the above 20, and the number is smaller than this. can be

In addition, in the illustrated embodiment of the present invention, the central body 18 is shown as a regular icosahedron, but the present invention is not limited thereto. It could be one of them.

In addition, in the illustrated embodiment of the present invention, the rod 16 is shown as having the same cross-section as the shape of each side 20 of the central body 18 as a regular triangle, but the present invention is not limited thereto. may be polygonal or circular, but preferably, the rod 16 may be formed in a polygonal shape having the same cross section as the shape of the side surface of the central body 18 . Further, in another example, the rod 16 may have a cross section of a specific pre-designed shape (eg, a simple logo, etc.) other than the polygonal or circular shape, but in this case the shape has its center point and is It is preferable to have symmetry as a reference.

In particular, in the present invention, the regular polyhedron as shown in FIG. 2 is first the billiard ball body so that each rod 16 whose end surface forms the mark 14 can maintain a uniform and constant spacing or angle in all directions. (10) is placed in the center. In the central body 18 of this regular polyhedron, each side 20 is congruent and the angles they make are the same.

And, as shown in FIG. 3, each rod 16 whose central axis is perpendicular to the center of each side 20 of the central body 18, which is the regular polyhedron that forms the same angle in all directions, is the central body. It is formed so as to be integrally formed with (18) and extended.

Also, in the illustrated embodiment, both of each of the rods 16 are shown as being vertically connected to every side 20 of the central body 18, but the present invention is not limited thereto, and the combined As long as the rods 16 are symmetrical with each other, they are configured to be vertically connected to only some side surfaces 20 and not to every side 20 of the central body 18, so that the rod 16 is connected to the other sides. You can also make it not Thus, in one example, the number of rods 16 may range up to 20.

In one example of the present invention, each rod 16 extending perpendicularly from the central body 18 and each side 20 thereof may be integrally configured to constitute one rod assembly 22 . The size of the central body 18 constituting the rod assembly 22 may be, for example, the diameter of the maximum diameter portion of the central body, which is a regular polyhedron, in the range of 1/3 to 1/4 of the diameter of the billiard ball, The present invention is not limited to the above range and may be in any range as long as the center of gravity of the billiard ball can be precisely maintained.

The rod assembly 22 may be manufactured by a general molding operation in the art, and may be molded after being embedded in the billiard ball body 10 to be integrated with the billiard ball body 10 . In one example, the central body 18 and the rod 16 may be made of the same material or in another example, different materials, but preferably, a rod assembly comprising the central body 18 and each rod 16 All of (22) can be molded together with the same composition of phenolic resin, which is a material of a conventional billiard ball. That is, after arranging the rod assembly 22 connected to the central body 18 and each rod 16 in a mold having a cavity corresponding to the spherical shape of the billiard ball in the center, a thermosetting or thermoplastic resin, one For example, it can be manufactured by injecting a phenolic resin-based molding liquid and molding, and when the molding liquid is cured, the billiard ball formed from the mold is separated.

As described above, in the present invention, each rod 16 integrally configured with the central body 18 and extending from the center of each side surface 20 of the central body 18, which is a regular polyhedron, has their respective end faces 16a having a true spherical shape. It is disposed on the outer surface of the billiard ball body 10 molded into a billiard ball to form a mark 14 of the billiard ball.

Thus, in one example, the rods 16 extending vertically from each side 20 of the regular polyhedral center body 18 can have the same length, and each end face 16a of these rods 16 is the billiard ball body. Forming a part of the outer surface 12 of (10) to accommodate the rod assembly 22 in a mold (not shown) and forming the billiard ball with a billiard ball material, 18) is able to exactly coincide with the center of the billiard ball body 10 .

Further, in another example, when the material of the billiard ball body 10 is non-uniform and its center of gravity and its inner center do not match, the center body 18 may be disposed at the center of gravity and thus vertically extend therefrom. Each of the rods 16 to be used may have different lengths from each other.

When the rod assembly 22 is embedded and molded in the billiard ball body 10 as described above, the central body 18 of the rod assembly 22, that is, the central body 18, which is a regular polyhedron, is located at the center inside the billiard ball body 10. and each rod extending therefrom is evenly buried in all directions at the same interval or angle, so that the internal mass distribution of the billiard ball is maintained uniformly, perfect spherical surface and symmetry can be realized, and each rod (16) The marks 14 indicated by the end surfaces 16a of the billiard ball body 10 may be uniformly disposed at the same distance from each other on the outer surface 12 of the billiard ball body 10 .

Preferred embodiments and embodiments of the present invention are disclosed for the purpose of illustration, and any person skilled in the art may make various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications, Changes, additions, etc. shall be regarded as belonging to the scope of the claims.

10: billiard ball body
12: exterior
14: mark
16: load
16a: end face
18: centrosome
20: side
22: rod assembly.

Claims (12)

A billiard ball having a plurality of rods 16 embedded in a body 10, each end face 16a of the plurality of rods 16 having a respective mark 14 on the outer surface 12 of the billiard ball In the billiard ball represented as
and a central body 18, which is disposed at the inner center or center of gravity of the billiard ball body 10 separately from the plurality of rods 16, and is composed of a regular polyhedron having a plurality of side surfaces 20;
The plurality of rods 16 are attached and connected on each side surface 20 such that each other end surface is perpendicular to each side surface 20 of the central body 18 , and each side surface 20 of the central body 18 . extending in the radial direction toward the outer surface 12 of the billiard ball from
Characterized by a billiard ball. According to claim 1,
A billiard ball, characterized in that the number of the plurality of rods (16) is less than or equal to the number of side surfaces (20) of the central body (18). According to claim 1,
The billiard ball, characterized in that the center of gravity and the inner center of the billiard ball body (10) do not match, and the central body (18) is disposed at the center of gravity. According to claim 1,
The central body (18) is a billiard ball, characterized in that one of a tetrahedron, a hexahedron, an octahedron, a dodecahedron, and an icosahedron. According to claim 1,
Billiard ball, characterized in that at least one of the plurality of rods (16) is a polygon having a cross-section identical to the shape of each side (20) of the central body (18). According to claim 1,
Billiard ball, characterized in that at least one of the plurality of rods (16) is a polygon having a cross-section different from the shape of each side (20) of the central body (18). According to claim 1,
Billiard ball, characterized in that at least one of the plurality of rods (16) is a polygonal shape or a polygon having a circular cross section. According to claim 1,
at least one of said plurality of rods (16) has a cross section of a predetermined shape having a central point and having symmetry with respect to said central point. According to claim 1,
The billiard ball, characterized in that the central body (18) and the plurality of rods (16) are made of the same material. 10. The method of claim 9,
The material is a billiard ball, characterized in that the phenolic resin. According to claim 1,
Billiard ball, characterized in that the number of rods (16) is in the range of up to 20. delete

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