JPS6125812Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a ball for gateball.

Gateball is a ball game that is loved by older people, and has rapidly become popular all over the world in recent years.

The balls used in gateball are made of wood or synthetic resin. Among these, synthetic resin balls may shrink due to temperature changes due to the nature of the material, and if this happens repeatedly and there is a hole inside the ball, the internal synthetic resin may become uneven in thickness and the center of the ball may shift. or the external shape may change. As a matter of course, the ball does not roll straight, and even if you hit the ball with great aim, it will curve midway and the ball will not roll as expected.

In addition, the ball must be marked with a designated number according to the rules. This number is engraved on the ball so that it does not disappear even after long-term use, but since gateball enthusiasts are mainly elderly people, there is a problem that it is difficult to see if it is small. For this reason, there is a desire to make the numbers as large as possible to make them easier to read, but as the numbers are made larger, the grooves between the numbers become wider, so when the ball rolls on the ground, dirt and pebbles can get stuck there, causing the ball to bend. There is a problem with storing it away.

Conventionally, a plastic outer sphere was formed around the outer periphery of a plastic inner sphere.
55-8544), but because the numbers formed on the outer periphery of the outer sphere are concave, there are problems such as sand and pebbles getting stuck inside the numbers, and the numbers being thin and difficult for elderly people to see. It was hot.

Conventionally, the numbers were made of plastic (Utility Model Publication No. 1981-81859). This is because the middle ball is made of wood, and when a plastic umbrella-shaped fitting is fitted into the middle ball, and an outer ball is made of plastic around the outer periphery of the middle ball, the number grooves are formed in the umbrella-shaped fitting. The plastic was poured into the plastic numerals to form plastic numbers.

However, this requires a structure that allows the umbrella-shaped fitting to be inserted into the wooden inner sphere, which complicates the structure of the inner sphere and is troublesome to process. Since a guide hole must be formed to allow the plastic to flow into the groove, the structure becomes complicated and processing is troublesome.

Furthermore, since the middle ball is made of wood and the outer ball is made of plastic, the adhesion between the two is poor, and when used for a long period of time, the middle and outer balls separate, causing noise inside the outer ball. Since the plastic umbrella-shaped fitting is inserted into the middle sphere, the adhesion between the middle sphere and the umbrella-shaped fitting is poor, and the umbrella-shaped fitting easily comes off from the middle sphere.

In order to solve the above-mentioned problems, this invention makes the ball double with the inner ball and the outer circumferential part that covers the outside, and instead of having numbers engraved, the numbers are molded separately from the inner ball and the outer circumferential part. is embedded in the outer periphery. The present invention will be described in detail below based on illustrated embodiments.

1 is a synthetic resin middle ball, 2 is a number inserted into the middle ball, and 3 is a synthetic resin outer periphery that covers the outer periphery of the middle ball.

The middle sphere 1 is made of PH resin or other suitable hard resin and is molded into a spherical shape so that it is not easily affected by temperature changes.

The numeral 2 is molded by cutting out plastic, and its protrusion 4 is inserted into a small hole 5 formed in the middle ball 1 so as to project to the outside of the middle ball 1.

The outer periphery 3 covers the outer periphery of the inner sphere 1 spherically with PP (polypropylene) resin or other appropriate synthetic resin, and has a thickness such that the outer periphery is approximately equal to the surface 6 of the number 2.

If the number 2 protrudes outward from the outer circumferential surface of the outer circumferential portion 3, its surface is polished so that it becomes the same surface as the outer circumferential surface. The color of the number 2 is different from the color of the outer peripheral part 3.

As mentioned above, the present invention has a double structure of the inner sphere 1 and the outer circumferential part 3, so the diameter of the inner sphere is small, and therefore it is difficult to form water inside the inner sphere, which reduces the temperature. There is almost no uneven thickness due to changes. Furthermore, since the middle ball 1 does not have uneven thickness, the outer circumferential portion 3 is not easily deformed, and therefore the ball rolls straight in the direction in which the ball is hit.

Furthermore, in the present invention, instead of carving numbers, plastic numbers are embedded in the outer peripheral part 3 so that the surface is flush with the outer peripheral surface of the outer peripheral part, unlike conventional recessed numbers. There is no problem of sand, pebbles, etc. clogging the device during use, and even if the numbers are made larger, this does not occur at all, so the numbers can be made larger to make it easier for elderly people to see.

In addition, since the gateball of the present invention has the center ball, numbers, and outer periphery all made of plastic, the adhesion between the three parts is very good. Moreover, unlike the conventional ball made in 1985-81859, there is no need for an umbrella-shaped fitting with a complicated structure, which simplifies the overall structure of the ball, providing a gate ball that is easy to manufacture, has good quality, and is inexpensive. I can do things.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of the present invention, FIG. 2 A is a front view of the numbers, B is a sectional view of the numbers, and FIG. 3 is an explanatory external view showing an example of the present invention. 1 is the center ball, 2 is the number, and 3 is the outer periphery.

Claims (1)

[Scope of utility model registration request] In the insertion hole formed in the plastic inner ball,
Separately molded plastic numbers are inserted so as to protrude to the outside of the inner sphere, and the outer periphery of the inner sphere is covered with plastic to form the outer periphery, and the surface of the numbers protruding from the inner sphere is used as the outer periphery. A gateball ball that is exposed so that it is flush with the outer circumferential surface of the ball.