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Hammer for physical exercises

a technology for physical exercises and hammers, which is applied in the field of hammers for physical exercises, can solve the problems of dangerous playing with hammers of this design, and achieve the effect of keeping the body in balance, being practical and safe to us

Inactive Publication Date: 2006-11-23
CHEN SUNG YENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] The present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a hammer, which is practical for exercising the muscles of the hands and the waist. It is another object of the present invention to provide a hammer, which is practical and safe in use for exercising the skill of keeping the body in balance. To achieve these and other objects of the present invention, the hammer comprises ball, which comprises a spherical outer shell, two inflatable inner tubes mounted inside the spherical outer shell, and a rigid center tube fixedly fastened to the spherical outer shell, and an operating cord member fixedly fastened to the center tube of the ball for operation with the hands to swing the ball or to hit the ball against a wall.

Problems solved by technology

It is dangerous to play with a hammer of this design.

Method used

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  • Hammer for physical exercises
  • Hammer for physical exercises
  • Hammer for physical exercises

Examples

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Embodiment Construction

[0011] Referring to FIGS. 1 and 2, a ball 10 for hammer in accordance with the present invention is shown comprising a spherical outer shell 13, two inflatable inner tubes 11 and 11′ mounted inside the spherical outer shell 13, a rigid center tube 14 fixedly fastened to the spherical outer shell 13 at the center, and an air valve 12 extending from one inner tube 11′ to the periphery of the spherical outer shell 13. Through the air valve 12, an inner tube 11′ is inflatable with forced air. According to this embodiment, the center tube 14 is a ferrous tube formed integral with the spherical outer shell 13 upon vulcanization of the spherical outer shell 13.

[0012] The spherical outer shell 13 has a predetermined thickness and weight so that the ball 10 can be made in, for example, 2 KG, 4 KG, or 10 KG.

[0013] An operating cord member 20 is inserted through the center tube 14 of the ball 10, and made to have a first knot 21 stopped at one end of the center tube 14 and a second knot 21′ ...

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Abstract

A hammer for physical exercise is disclosed to include a ball, which has two inflatable inner tubes surrounded by a spherical outer shell and a rigid center tube fixedly fastened to the spherical outer shell, and an operating cord member fixedly fastened to the center tube of the ball for operation with the hands to swing the ball so as to exercise the muscles of the hands and the waist.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates a hammer for physical exercises and more particularly to such a hammer that is practical for exercising the muscles of the hands and the waist and practicing the skill of keeping the body in balance. [0003] 2. Description of the Related Art [0004] A conventional hammer for physical exercises comprises a ball, a handle, and a connecting wire connected between the ball and the handle. The ball is stuffed with metal weights, ferrous sands, water or any of a variety of heavy substances to increase the weight. This ball does not rebound when hit a wall. Further, the center of the gravity of the ball may be not at the true center of the ball. It is dangerous to play with a hammer of this design. SUMMARY OF THE INVENTION [0005] The present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a hammer, which is practical for exerc...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63K3/00A63B21/06
CPCA63B21/072A63B69/0079A63B43/007
Inventor CHEN, SUNG-YENG
Owner CHEN SUNG YENG
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