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Hollow Plastic Ball

a hollow plastic ball and ball technology, applied in the field of balls, can solve the problems of deformation, uneven structural strength inconvenience for users to manipulate hollow plastic balls, etc., and achieve the effects of strengthening structural strength, enhancing stability of hollow plastic balls, and keeping weight balan

Inactive Publication Date: 2017-12-14
CHEN REN HAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a hollow plastic ball with enhanced stability and strength. It has two semi-spherical shells with horizontal and vertical ribs that keep it weight balanced during flight and prevent it from moving or swaying freely. This allows for smooth manipulation of the hollow plastic ball by the user. The horizontal and vertical ribs also reinforce the structural strength of the hollow plastic ball, preventing it from being deformed or distorted due to hitting or treading. In summary, the hollow plastic ball has improved stability and strength.

Problems solved by technology

However, the connecting ribs of the two semi-spherical shells decrease the weight balance of the hollow plastic ball, so that the hollow plastic ball will sway freely due to a deflection of the center of gravity and cannot be maintained stably along a determined movement trace, thereby causing inconvenience to the user in manipulation of the hollow plastic ball.
In addition, the hollow plastic ball only has the connecting ribs of the two semi-spherical shells so that the hollow plastic ball has an uneven structural strength and will be deformed due to hitting or treading.

Method used

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Embodiment Construction

[0015]Referring to FIGS. 1-5, a hollow plastic ball in accordance with the preferred embodiment of the present invention comprises two semi-spherical shells 10 arranged symmetrically and combined together. Each of the two semi-spherical shells 10 has a surface provided with a plurality of holes 11. Each of the two semi-spherical shells 10 has an inner circumferential face provided with a horizontal rib 12 and a semi-circular vertical rib 13. The horizontal rib 12 of each of the two semi-spherical shells 10 has an annular shape and presents an angle of 360 degrees. The vertical rib 13 of each of the two semi-spherical shells 10 has a cruciform arcuate arrangement and presents an angle of 180 degrees.

[0016]In fabrication, each of the two semi-spherical shells 10 is initially provided with the holes 11 and the semi-circular vertical rib 13. Then, the two semi-spherical shells 10 abut each other and are welded. Then, the two semi-spherical shells 10 are pressed by a pressing die to form...

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Abstract

A hollow plastic ball includes two semi-spherical shells combined together. Each of the two semi-spherical shells has a surface provided with a plurality of holes and has an inner circumferential face provided with a horizontal rib and a semi-circular vertical rib. Thus, each of the two semi-spherical shells is provided with the horizontal rib and the semi-circular vertical rib, so that the hollow plastic ball will not move or sway freely during flight. In addition, the horizontal rib and the vertical rib of each of the two semi-spherical shells reinforce the structural strength of the hollow plastic ball to prevent the hollow plastic ball from being deformed.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present invention relates to a ball and, more particularly, to a hollow plastic ball.2. Description of the Related Art[0002]A conventional hollow plastic ball comprises two semi-spherical shells combined together. Each of the two semi-spherical shells has a surface provided with a plurality of holes and has an inner circumferential face provided with a connecting rib. The connecting ribs of the two semi-spherical shells are melted and connected during the molding process so that the two semi-spherical shells are combined together. When the hollow plastic ball is thrown, it will rotate during flight. However, the connecting ribs of the two semi-spherical shells decrease the weight balance of the hollow plastic ball, so that the hollow plastic ball will sway freely due to a deflection of the center of gravity and cannot be maintained stably along a determined movement trace, thereby causing inconvenience to the user in mani...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B39/00A63B43/00
CPCA63B39/00A63B2039/003A63B43/002
Inventor CHEN, REN-HAU
Owner CHEN REN HAU