JPH03214Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to the improvement of balls conventionally used in games such as gateball, which are popular among the elderly as a light sport. The objective is to provide a ball that is made of synthetic resin material, has a brake when it rolls, and can be enjoyed even in narrow indoor facilities.

Conventional technology Conventionally, the balls used for gateball and other games are generally made of wood, and because they are hit with a mallet, they need to be hard and strong. It's difficult.
Furthermore, since gateball is a sports game, standards have been set for the size, weight, etc. of the ball, and in order to meet these standards, there are many problems in manufacturing the ball using wood. For this reason, some balls have recently been made of synthetic resin, but as mentioned above they hit hard, so they have to be thick to maintain strength, and they also have to be thick to add weight. must be made thicker. Therefore, there are many problems in manufacturing, such as sinking of the meat during molding and insufficient strength of the bonded portion. In addition, in recent years, people in cold regions have begun to enjoy games indoors during the long winter months, but conventional balls have the disadvantage of rolling too much in a small indoor space and causing damage to the ball.
There is nothing that can naturally apply a brake to a ball that is hit hard, and for this reason, the reality is that balls are formed into polyhedrons, or balls with chamfered portions of the spherical surface are used.

Problems to be Solved by the Invention This invention solves the above-mentioned conventional problems by making it possible to mass-produce thick balls of uniform quality using synthetic resin materials, and in particular, by making it possible to mass-produce thick balls of uniform quality. This system automatically applies braking force to the ball, allowing you to fully enjoy playing the ball even in a small indoor space. To explain its structure in detail below, as shown in FIG. A load material 2 such as iron powder is charged in a flowable manner, and an outer sphere 3 is integrally molded and fixed to the outer peripheral surface of the inner sphere, using the inner sphere as a core material.

Function The ball according to this invention is constructed as described above, that is, since synthetic resin is used as the material, it is possible to obtain a ball with uniform external shape, weight, etc. Since the inner and outer balls are molded separately, the inner and outer balls are formed into a thick ball, but when the inner and outer balls are molded individually, the walls are thin, so there is no sinkage, etc., and the inner ball is not the outer ball. Since the wrapped outer ball has material welded to the entire surface of the inner ball, it is strong and there is no risk of it breaking even if it is hit hard. In particular, when using this ball, load materials such as iron powder are charged inside it, so
When the ball rolls, the load material flows and applies a brake to the ball, preventing it from rolling over long distances.
Therefore, the game can be fully enjoyed even in a narrow facility such as indoors.

Embodiment The illustrated ball is a ball commonly used for gate balls, in which a pair of hemispheres 1 and 1 have corresponding protrusions 4 and grooves 5 formed on the mating surfaces of the pair of hemispheres 1, 1 to form the inner ball. These are then fitted together and then welded. In order to integrally mold and fix the outer sphere to the inner sphere, in the case shown in Figs. The outer sphere is molded by holding the sphere, but in the case shown in Fig. 3, a numeral 7 is set on the outer surface of the inner sphere in place of the projection 6, and the outer sphere is welded while holding this. It is something. Of course, instead of the numbers, a pattern or the like can be set and embossed on the outer spherical surface.

Effects of the invention As detailed above, the ball according to this invention is stronger than conventional products, and because it automatically applies a brake when rolling, it does not roll far, and is therefore suitable for use in narrow spaces such as indoors. You can enjoy the game no matter where you are.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the ball according to this invention, FIG. 2 is a perspective view of the inner ball thereof, and FIG. 3 is a perspective view of the inner ball of another embodiment. 1... Hemisphere, 2... Loading material, 3... Outer sphere.

Claims (1)

[Claims for Utility Model Registration] (1) A hollow thick-walled inner sphere is constructed by bonding a pair of hemispheres 1 and 1 made of synthetic resin material, and a load material 2 such as iron powder is flowed inside the sphere. This thick-walled ball used for gate balls, etc. is formed by integrally molding and fixing an outer ball 3 made of a synthetic resin material to the outer peripheral surface of the inner ball, using the inner ball as a core material. (2) A request for registration of a utility model in which a character 7, etc. is attached to the outer circumferential surface of the inner sphere, and when the outer sphere is molded, the inner sphere is supported by the character 7, and this is fixed by the outer sphere 3. Thick-walled balls used for gate balls, etc. described in range (1).