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Exercise tool and weight member thereof

a technology of exercise tool and weight member, which is applied in the field of exercise tools, can solve the problems of high manufacturing cost, large error in the actual weight of manufactured dumbbells, and damage to the floor or injury of users

Inactive Publication Date: 2009-04-09
WANG WEN CHING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]Therefore, an object of the present invention is to provide a weight member for exercise that can overcome at least one of the aforesaid drawbacks associated with the prior art.

Problems solved by technology

The conventional metal-cast dumbbell is disadvantageous in that, due to its rigidity, damage to a floor or injury to the user can occur when the dumbbell is accidentally dropped.
Moreover, different molds are required to manufacture dumbbells having different weights, thereby resulting in high manufacturing costs.
Furthermore, since it is difficult to control the amount of impurities in the raw material for making the dumbbells, the specific weight of the raw material can vary from one batch to another, thereby resulting in large errors in the actual weights of manufactured dumbbells.

Method used

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  • Exercise tool and weight member thereof
  • Exercise tool and weight member thereof

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0023]Referring to FIG. 1, an exercise tool 200 according to this invention is shown to be in the form of a dumbbell, and includes a handle 201 and a pair of weight members 100, each of which is attached to a respective one of two opposite ends of the handle 201.

[0024]Each weight member 100 includes a resilient shell 2 that defines an inner chamber 22, and a filling 4 that is contained in the inner chamber 22 and that has shock-absorbing and weighting properties. The shell 2 is made of a resilient material, such as rubber, thereby imparting the shell 2 with deformable and shape-restorable properties. In this embodiment, the shell 2 includes an inner lining layer 21 defining the inner chamber 22, an outer skin layer 23 enclosing the inner lining layer 21, and a carcass 26 disposed between the outer skin layer 23 and the inner lining layer 21 to enhance the strength of the shell 2. It is noted that the carcass 26 is optional and may be omitted in other embodiments of the invention. Mo...

third embodiment

[0035]It is noted that the stoppers 33 may be provided directly on the opposite ends of the handle 201 in a possible modification of the

[0036]FIG. 4 illustrates the fourth embodiment of the exercise tool 200 of this invention. Like the third embodiment, the shell 2 of each weight member 100 only includes the outer skin layer 23 that defines the inner chamber 22. The shell 2 of each weight member 100 has the appearance of a disc in this embodiment, and further has a tubular extension 32 that defines the hole 31. The tubular extension 32 has an inner surface formed with an annular groove 311 proximate to the inner chamber 22. In this embodiment, the stopper 33 of each weight member 100 is in a form of a plate that is inserted into the tubular extension 32 and that has a periphery engaging the annular groove 311. The handle 201 is made of a rigid material (such as rigid plastic or metal), may be a solid or hollow bar, and has opposite ends inserted fittingly into the tubular extensions...

fourth embodiment

[0037]It is noted that the stoppers 33 can be provided directly on the opposite ends of the handle 201 in a possible modification of the

[0038]In yet another possible modification of the fourth embodiment, in case the tubular extensions 32 of the shells 2 of the weight members 100 are sufficiently thick and strong, the handle 201 can be omitted, and the tubular extensions 32 can be coupled to each other to serve as a handle of the exercise tool 200 (i.e., the handle is formed integrally with the shells 2 of the weight members 100).

[0039]FIG. 5 illustrates the fifth embodiment of the exercise tool 200 of this invention. Compared to the first embodiment, the stopper 33 of each weight member 100 is configured with an air inflation hole 331 that permits charging of a suitable amount of air into the inner chamber 22 via an air inflating pin (P) for improving resiliency of the weight member 100.

[0040]FIG. 6 illustrates the sixth embodiment of the exercise tool 200 of this invention. Compar...

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Abstract

A weight member for exercise includes a resilient shell that defines an inner chamber. The inner chamber contains a filling having weighting and shock-absorbing properties. The filling includes a high specific weight material and one of a foamable low specific weight material and a non-foamable low specific weight material. An exercise tool including a handle and at least one weight member attached to the handle is also disclosed.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority of Taiwanese application no. 096137253, filed on Oct. 4, 2007.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates to an exercise tool, such as dumbbells, barbells and kettle bells used in bodybuilding, weightlifting and other sports, more particularly to an exercise tool including a weight member that is safe to use.[0004]2. Description of the Related Art[0005]Exercise tools, such as dumbbells, barbells and kettle bells, are often used in bodybuilding and weightlifting.[0006]Conventional dumbbells are formed using metal casting techniques, and the weight of a conventional dumbbell is controlled through the size thereof.[0007]The conventional metal-cast dumbbell is disadvantageous in that, due to its rigidity, damage to a floor or injury to the user can occur when the dumbbell is accidentally dropped. Moreover, different molds are required to manufacture dumbbells having dif...

Claims

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Application Information

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IPC IPC(8): A63B21/06
CPCA63B21/0603A63B2225/62A63B21/072
Inventor WANG, WEN-CHING
Owner WANG WEN CHING
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