JP2965477B2 - Ball ball - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball for ball games used in soccer games, rugby games and the like.

[0002]

2. Description of the Related Art A ball for a ball game used in a soccer game, a rugby game, or the like, has a ball body formed by sewing a plurality of panels having a geometrical shape that forms a sphere, and compressed air inside the ball body. A ball having a configuration in which a rubber tube of a spherical hollow body enclosing a hollow tube is inserted, and a plurality of panels having a geometric shape for forming a sphere on the surface of the rubber tube of a spherical hollow body enclosing compressed air are bonded. The former is a "sew ball" and the latter is a "tension ball"
Is commonly referred to as

[0003] The present invention relates to the latter "sewing ball", which requires that the ball retain its original shape even after repeated use and does not deform. Therefore, the back surface of the skin of the panel is shown in FIG. As shown, a reinforcing member or the like is stuck to prevent deformation. However, soccer competitions and rugby competitions are outdoor competitions, which are carried out not only in fine weather but also in rainfall.If the ball of the conventional method is used during rainfall, the skin of the panel absorbs water and deforms, There is a problem that the weight of the ball changes and hinders play. Therefore, it is conceivable to increase the number of reinforcing members attached to the back surface of the skin of the panel.However, the weight increases, or the surface of the ball becomes too hard, which hinders the control of the ball, or the resilience is poor. Problems have arisen.

[0004] For example, regarding the standard of a ball used in a soccer game, "The ball is spherical, and the outer cover is made of leather or other recognized material. Materials that could harm the athlete by construction shall not be used. The outer circumference of the ball should be at least 68 cm. The weight of the ball at the start of the competition must be between 396 grams and 453 grams. The air pressure of the ball is 0,0 at sea level.
6 to 1.1 atm (600 to 1,100 g / cm ² ). The ball must not be changed during the competition without the referee's approval. ] Has been established. For this purpose, various proposals have been made to provide a ball which does not cause deformation within these rules. One example of this is proposed in Japanese Utility Model Laid-Open No. 5-5157 having a configuration as shown in FIG. .

[0005]

However, the method of the present invention has a problem in that the ball is deformed when used in the rain or the weight of the ball is changed, which hinders play. The biggest reason is that the "packing material" interposed between the cloth layers to reinforce the artificial leather panel is an "elastic foam layer". As a result, the weight of the ball is changed and the panel is deformed.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a ball body formed by sewing a plurality of panels each having a geometrical shape forming a sphere, and a spherical body inserted into the ball body and enclosing compressed air. In a ball for a ball game formed of a hollow rubber tube, the panel includes a leather member, a synthetic leather member, and a skin member formed of a material having the same effect as those described above, and a physical property value of the material on the back surface of the skin member. 0.2-1.2mm Tensile strength 150-200 kg / cm ² or more (JIS K6301) Elongation rate 400% or more (JIS K6301) High elastic member whose stress at 10% elongation is 1-10 kg / cm ² A panel in which a skin member, a high elastic member, and a reinforcing member are integrated with a reinforcing member made of a cotton cloth, a nylon cloth, a polyester cloth, or another material having the same effect as those described above. , To form a ball body by stitching the panel, it is intended to solve the conventional problems.

[0007]

Since the panel of the ball game ball body of the present invention has a skin member, a highly elastic member and a reinforcing member integrated with each other, the panel itself has a waterproof property, and the panel itself has an appropriate flexibility and can be used at the time of kicking. In addition to having good control of the ball and having elasticity, the ball also has the effect of improving the flight distance of the ball when kicking.

[0008]

An embodiment of the present invention will be described with reference to the drawings. 1 (a) and 1 (b) are perspective views of a ball game ball, FIG. 2 is a cross-sectional end view of a main portion of a ball game ball of the present invention, FIG. 3 is a cross-sectional end view of a main portion of a conventional ball game ball, and FIG. FIG. 5 is a drawing comparing the resilience of the ball of the present invention with the conventional ball, and FIG. 6 is a diagram showing the panel used for the ball of the present invention and the conventional ball. It is drawing which compared the water absorption with the panel used for the ball for ball games.

In the ball for ball games (A) according to the present invention, the surface of a ball having a sphere is divided into a plurality of panels, a seam is provided on each panel, and the panels are sewn to form a hollow sphere. This is a ball for ball games having a structure in which a rubber tube is inserted into a hollow portion of the sphere, air at a predetermined pressure is injected into the rubber tube, and an injection port is closed to be used. The shape of the panel (2) forming the surface of the ball body (1) is arbitrary, and the ball shown in FIG.
And a panel (2B). The ball shown in (b) is a sphere formed by combining panels ( 2C ), and combinations of these various other panel shapes are known, and it is possible to arbitrarily determine which panel shape to use. It is.

First, a skin member (3) is formed from leather, synthetic leather, and other materials having the same effect. Next, a highly elastic member (4) is provided on the back surface of the skin member (3). The physical properties of the high elastic member (4) are at least 0.2-1.2 mm in thickness, 150-200 kg / cm ² or more in tensile strength (JIS K6301), and 400% or more in elongation (JIS K6301) at 10% elongation. Desirably, the stress is between 1 and 10 kg / cm ² . As the applicable material, a natural rubber, a synthetic rubber, or a material formed of a rubber plate material having the same effect as these is used.

The adhesive (7) used for integrating the skin member (3) and the highly elastic member (4) is preferably an adhesive (7A) made of a natural latex rubber material. The natural latex-based adhesive (7A) is in contact with the ball without impairing the flexibility of the skin member (3) in bonding the skin member (3) and the highly elastic member (4) as compared with the synthetic rubber-based adhesive. The feeling is very good.

Next, a reinforcing member (5) is provided on the back surface of the high elastic member (4). As the reinforcing member (5), a cotton cloth, a nylon cloth, a polyester cloth, or a material having the same effect as these is used. The adhesive (7) used for bonding the skin member (3) and the high elastic member (4) is natural. An adhesive (7A) made of a latex-based rubber material or the like is suitable, but can be arbitrarily selected, such as another adhesive (7B). The material used for the reinforcing member (5), such as cotton cloth, nylon cloth or polyester cloth, and other materials having the same effect can be arbitrarily used, such as woven or knitted cloth, and the number used is not limited to one. It is also possible to use a stack of sheets. In the case of woven materials, the length direction (warp direction) and width direction (weft direction)
Since there is a difference in strength between them, they can be arbitrarily implemented such that they are crossed vertically and horizontally.

Further, the panel (2) is formed by integrating the skin member (3), the highly elastic member (4) and the reinforcing member (5) in the state of a raw material, and punching a single panel from the raw material. Etc., or can be arbitrarily implemented by cutting the skin member (3), the highly elastic member (4), and the reinforcing member (5) separately from the raw material with a die or the like and then integrating them. It is. or,
As means for providing the highly elastic member (4) on the back surface of the skin member (3), a stock solution of the highly elastic member (4) is applied to the back surface of the skin member (3) to a constant thickness to stabilize the rubber plate. Means can also be selected. Further, the sewing of the panel (2) is performed by sewing with a sewing machine, hand sewing, or a combination thereof.

[0014]

As described above, the ball for ball games according to the present invention has a ball body formed by sewing a plurality of panels having a geometrical shape forming a sphere, and is inserted into the ball body.
In a ball for ball games consisting of a rubber tube of a spherical hollow body for enclosing compressed air, the panel comprises at least a skin member formed of leather, synthetic leather or another material having the same effect as these, and at least physical properties on the back surface of the skin member. Value Thickness 0.2 to 1.2 mm Tensile strength 150 to 200 kg / cm ² or more (JIS K6301) Elongation rate 400% or more (JIS K6301) Stress at 10% elongation High elasticity with 1 to 10 kg / cm ² A member is provided, and a reinforcing member made of a cotton cloth, a nylon cloth, a polyester cloth, or another material having the same effect is provided on the back surface of the member. Since the skin member, the high elastic member, and the reinforcing member are integrated, the ball rebounds. The property becomes good. FIG. 5 shows a comparison of the examples. or,
Regarding the waterproof property, since the skin member, the high elasticity member and the reinforcing member of the present invention are integrated, the waterproof property of the ball is good. FIG. 6 shows a comparison of the examples. As described above, the ball for use in ball games of the present invention has good resilience and good waterproofness even in a game during rain, and has an effect of ensuring accurate play.

[Brief description of the drawings]

FIGS. 1A and 1B are perspective views of a ball for ball games.

FIG. 2 is a sectional end view of a main part of the ball for ball games of the present invention.

FIG. 3 is a cross-sectional end view of a main part of a conventional ball for ball games.

FIG. 4 is a cross-sectional end view of a main part of a conventional ball for ball games.

FIG. 5 is a drawing comparing the resilience of the ball for ball games of the present invention and a conventional ball for ball games.

FIG. 6 is a drawing comparing the water absorption of the panel used for the ball for ball game of the present invention and the panel used for the conventional ball for ball game.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ball main body 2 Panel 2A panel 2B panel 2C panel 3 Skin member 4 High elastic member 4A Foamable elastic member 5 Reinforcement member 6 Tube 7 Adhesive 7A Adhesive 7B Adhesive A Ball for ball games

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A63B 41/00

Claims (1)

(57) [Claims] 1. A ball game comprising a ball body formed by sewing a plurality of panels having a geometrical shape forming a sphere, and a spherical hollow rubber tube inserted into the ball body and filled with compressed air. In the ball for use, the panel has a thickness of 0.2 to 1.2 mm and a tensile strength of 150 to 200 kg / cm on a skin member formed of leather, synthetic leather or another material having the same effect as the above , and a back surface of the skin member. ² or more (JIS K6301) elongation rate 400% or more (JIS K6301) Stress at 10% elongation 1 to 10 kg / cm ² A high elastic member having the following physical property values is provided, and a reinforcing member made of a cotton cloth, a nylon cloth, a polyester cloth, or the like, is provided on the back surface thereof, and the skin member, the high elastic member, and the reinforcing member are integrated. A ball for ball games, characterized in that: