JPH04128769U - Golf ball - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention relates to a golf ball, and provides a pattern that allows the pattern on the golf ball to be recognized from all directions.
To provide a golf ball that has a pattern as simple as possible and can form such a pattern with deep grooves. [Construction] The golf ball of this invention is made of soft rubber, plastic, polyurethane foam, or other materials to form a sphere.
A concave groove circle is formed at the top of the sphere and a bottom portion opposite thereto, and a plurality of concave stripes are formed extending outward from the periphery of these concave groove circles and communicating with the concave groove circle.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to golf balls, and in particular, to the surface of the golf ball, no matter which direction it is viewed from, Designed with an identifiable pattern, it can be played on a golf course that is smaller than a regular golf ball playing field. This invention relates to a golf ball that can be suitably used for golf and does not have a long flight distance.

0002

[Prior art and its problems]

Golf balls have many dimples on their spherical surface to improve flight distance. It is being Generally, a spherical surface with such dimples has an initial A symbol, symbol, or number is printed on the golf ball to identify each player's golf ball. It is made possible to separate.

0003 By the way, because the display area of these initials etc. is small, For example, if the initials are placed on the grass on the fairway with the printed side facing down. It is said that if the golf ball is left behind, it becomes difficult to tell who the golf ball belongs to. There was a problem.

0004 In order to solve such problems, the inventor of this invention has recently proposed what kind of positional relationship. A golf ball with a pattern that can be easily recognized even when the golf ball is placed on it. We are proposing a golf ball that is drawn over the entire spherical surface. In addition, our country's land and Taking artificial circumstances into consideration, the current golf course Golf is a sport that allows you to enjoy playing on a small golf course without requiring a large area. They are also proposing competitions called ``semi-golf'' and ``OK golf.''

[0005] However, a golf ball with only a printed pattern that spans the entire spherical surface cannot compete. Over time, the printed pattern becomes damaged due to the impact from the shot and the friction from rolling on the green. The golf ball may become damaged or worn out, and the ability to identify the golf ball is lost.

[0006] Therefore, recently, golf balls have been developed that do not lose their distinguishing ability even after long-term use, and A golf ball with grooves forming a pattern that spans the entire spherical surface of the ball to suppress flight distance. Ruff ball is suggested.

[0007] However, when manufacturing such golf balls, it is difficult to create complex patterns. As a result, it was difficult to remove the golf ball from the mold, and deep grooves could not be formed. In addition, there were problems in that the cost required for manufacturing the mold increased.

[0008]

[Purpose of invention]

The present invention takes into account the problems of the conventional technology and allows the pattern to be applied to the golf ball from all directions. Make patterns as simple as possible while still being recognizable, and add depth to those patterns. An object of the present invention is to provide a golf ball that can be formed with grooves.

[0009]

[Key points of the idea]

According to the present invention, the above object is to be applied to soft rubber, plastic, polyurethane foam, etc. A sphere is formed from other material, and a concave groove circle is formed on the top of the sphere and the opposite bottom. A plurality of grooves extend outward from the periphery of these groove circles and communicate with the groove circles. This is accomplished by providing a golf ball characterized by the following:

0010

【Example】

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the golf ball of the present invention.

[0011] In the figure, the golf ball 1 has a diameter of 41.15 mm to 42.67 mm, for example. It is a sphere formed within each range of weight 25g to 28g. In addition, the golf ball The materials that form the rubber 1 are soft rubber, plastic, and foamed polyurethane. A round concave groove 4 is formed on the top 2 of the golf ball 1 and the bottom 3 facing the top 2. .

0012 A plurality of grooves extend outward from the periphery of these grooves 4 and communicate with the grooves 4. A strip 5 is formed. In this embodiment, this grooved line 5 extends in all directions from the periphery of the groove 4. The grooves are formed so that they extend out at approximately equal intervals, and the grooves on the upper hemisphere and the grooves on the lower hemisphere It communicates with the groove 5. In addition, an appropriate number of discs are placed between the grooves 5 and 5. A sample 6 is formed. Note that the grooves 5 may be formed into three or five grooves. Sometimes. Further, FIG. 2 shows a partially omitted cross section of the golf ball 1. .

[0013] FIG. 3 is a perspective view showing another embodiment of the present invention. In the same figure, the upper hemisphere and the lower The hemisphere is formed in the same way as shown in Figure 1, but the upper hemisphere is formed in the equatorial plane. Make sure that the tip of the grooved line 7 is located approximately in the center of the part sandwiched between the grooved lines 7 and 7 in the lower hemisphere. It has been formed. In this embodiment, four grooves 7 are formed in each of the upper and lower hemispheres. However, two grooves 7 may be provided in each of the upper and lower hemispheres. configured like that In this case, get a golf ball with the simplest pattern that is recognizable from all sides. can In order to make the golf ball, steps are taken to form the grooves 4 and grooves 5 on the inner surface. Two hemispherical molds with convex parts are put together and liquid plastic is injected inside. do. After a certain period of time, the liquid plastic solidifies and when the mold is separated, the plastic becomes solid. The ruff ball is completed.

[0014]

[Effect of the idea]

As explained in detail above, according to the present invention, the pattern on the golf ball can be changed in all directions. It is possible to create a very simple pattern while still being recognizable from the outside, and Such a pattern can be formed with deep grooves, reducing flight distance due to air resistance. In addition, the displayed pattern is hard to erase, and it is easy to remove from the mold, making manufacturing easy. You can get a golf ball easily.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the golf ball of the present invention.

FIG. 2 is a partially omitted sectional view of the golf ball of the present invention.

FIG. 3 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

1 golf ball 2 Top part 3 Bottom 4 Concave groove 5 Concave line 6 dimples 7 Concave stripes

Claims (3)

[Scope of utility model registration request] Claim 1: A sphere is formed from soft rubber, plastic, foamed polyurethane, or other material, and a concave groove circle is formed at the top and the opposite bottom of the sphere, and from the periphery of these concave groove circles there is a A golf ball characterized in that a plurality of grooves are formed extending in the groove and communicating with the groove circle. 2. The golf ball according to claim 1, wherein the grooves are formed to extend from the periphery of the groove circle at substantially equal intervals in all directions. 3. The golf ball according to claim 1, wherein the tip of the groove on one hemisphere is located approximately at the center of the portion sandwiched between the grooves on the other hemisphere in the equatorial plane of the sphere.