Gymnastic ball

Abstract

A gymnastic ball is constructed to have a spherical rubber wall, an inflatable inner tube mounted inside the spherical rubber wall, and two rubber handles adhered to and vulcanized with the spherical rubber wall, each rubber handle having a rigid support embedded therein to reinforce the structural strength.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a ball for the training of the body and more particularly, to a durable gymnastic ball, which has reinforced handles for the gripping of the hands during exercise. [0003] 2. Description of the Related Art [0004]FIGS. 1 and 2 show an inflatable ball constructed according to U.S. Pat. No. 2,115,926 for gymnastics. According to this design, the inflatable ball 10 comprises rubber walls 11, and at least one handle structure fastened to the rubber walls 11. Each handle structure comprises thin marginal edges 14, hemispherical recesses 12, and a handle 15. Each hemispherical recess 12 has a concave-convex bottom joined to the rubber walls 11. This design of inflatable ball has numerous drawbacks as outlined hereinafter: [0005] 1. The design of the handle 15 hemispherical recesses 12 is not orthopedically engineered for convenient and positive gripping of the hand. [0006] 2. The limited bon...

AI Technical Summary

Benefits of technology

[0009] The present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a gymnastic ball, which has handles for comfort and positive gripping of the hands. It is another object of the present invention to provide a gymnastic ball, which has the handles thereof respectively reinforced with an embedded rigid support against breaking. It is still another object of the present invention to provide a gymnastic ball, which has the handles formed integral with the ball body so that the handles do not fall from the ball body. To achieve these and other objects of the present invention, the gymnastic ball comprises a ball body and at least one handle fastened to the ball body. The ball body comprises a spherical rubber wall, an inflatable inner tube mounted inside the spherical rubber wall, and an air valve extended from the inflatable inner tube to the outside of the spherical rubber wall for enabling the user to drive forced air into the inflatable inner tube to inflate the inflatable inner tube. The at least one handle is respectively molded from raw rubber and adhered to the spherical rubber wall and vulcanized with the spherical rubber wall. Each handle has a rigid support embedded therein.

Problems solved by technology

Each handle structure tends to be broken or permanently deformed.

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