Molten Corporation

Yukinori Nagao

Kazuyuki Wakibayashi

Hidesuke Kuriki

Hideomi Shishido

Masayuki Tanaka

Ryo Kurahashi

Norihiro Yuki

Naoyuki Fujiwara

Mitsuo Koyama

Katsumi Kobayashi

Yosuke Sato

The ball of the present invention is characterized by including at least one skin layer having water absorbability. The at least one skin layer may be formed of a water absorbent material, or may be formed so as to include a surface portion and a water absorbent outer skin adhered to at least a part of the surface portion. According to the ball of the present invention, a ball for competitions that can easily maintain water absorbency is provided while remaining durable even when used for a long time and not requiring man-hours during the manufacturing process.

Ball

[Problem] To make a ball easy to be grabbed. [Solution] In a skin bodywhich covers a ball main body, a skin partand a circumferential wall partprotruding from a peripheral edge part of the skin partto a back side are integrally formed by molding of injecting a soft material made of resin or rubber into a mold. Alternatively, a structure is such that a step part or flat surface part where a finger is hung is provided on a front surface of the ball main bodyor a front surface of the skin bodywhich covers the ball main body. Alternatively, a front surface of one of adjacent skin bodiesand a front surface of the other thereof configure a step part in a radial direction of a ball. With this, even in a ball game where the ballis grabbed with hand such as a handball game, when a person grabs the ball, the skin partof the skin bodyis easily recessed, a finger is hung on the step part, or the flat surface part is touched with a finger to make the person feel that the ballhas a small outer diameter. With this, the ballbecomes easy to be grabbed, thereby making it easy to throw or catch the ball

Skin body structure for ball

A producing method of ball for ball game including a ball cover and a bladder is disclosed. The method includes steps of (a) inflating a bladder and providing a web layer by coating at least a thread on an outer surface of the bladder thereafter, (b) fabricating a plurality of panels in a predetermined shape, (c) sewing the plurality of panels edge to edge together excluding a portion thereof by a sewing machine to form a ball cover including an inlet opening, (d) inserting the bladder obtained at step (a) into the ball cover obtained at step (c) through the inlet opening, (e) sewing the inlet opening of the ball cover, and (j) inflating the ball for ball game to a predetermined pressure within a shaping mold.

Producing method of ball for ball game

The present invention provides a ball for ball games which has equivalent or increased cushioning properties when compared conventional balls. The ball for ball games of the present invention includes a bladder made of rubber or elastomer, and a foamed layer covering the outside of the bladder, in which a skin layer is provided on each surface sectionalized by partition portions extending from the surface of the foamed layer, the partitions having a lesser degree of expansion than the main portion of the surface which is sectionalized by the portions.

Ball for ball game

Display apparatus for use in athletic games

Growing community of inventors

Hiroshima, Japan

Yukinori Nagao