Site News  |   Monitor Keywords  |   Monitor Archive  |   Organizer  |   Account Info  |

Rubber barbell weight with at least one colored rubber belt and a method of making the same

Rubber barbell weight with at least one colored rubber belt and a method of making the same description/claims

1. Field of the Invention

The present invention relates to a rubber barbell weight and a method of making the rubber barbell weight, especially to a rubber barbell weight with at least one annular colored rubber belt and a method of making the rubber barbell weight.

2. Description of the Prior Arts

Weightlifting is widely used to build and develop a person's muscles. Weightlifting equipment is usually a barbell. The user raises and lowers the barbell to exercise the muscles. The barbell comprises a bar and at least two weight assemblies. The bar has two ends. The weight assemblies weigh the same and are mounted respectively on the ends of the bar. Each weight assembly comprises at least one replaceable disk-shaped weight. The weight has two flat surfaces and a circular outer edge. Most conventional barbell weights are iron or another heavy metal. When the metal weight is dropped on the floor, the metal weight strikes the floor and makes a huge noise. Therefore, conventional barbell weights made of rubber have been developed to reduce the noise when the weight is dropped on the floor.

Conventional rubber weights can be made of rubber in different colors to identify the weight of each rubber weight. For example, a red rubber weight weighs 25 kg, a yellow rubber weight weighs 20 kg, a green rubber weight weighs 10 kg, a white rubber weight weighs 5 kg, etc.

With reference to FIG. 9, conventional weights are stored perpendicularly on a rack (70). Because the conventional rubber weights with different weights have different colors, a person can easily distinguish the conventional rubber weights by the colors on sides of the conventional rubber weights.

Some conventional rubber weights (80) often used to practice are black and the weights of the practice rubber weights (80) are marked respectively on flat surfaces of the practice rubber weights (80). Therefore, a person cannot distinguish the practice rubber weights (80) easily when the practice rubber weights (80) are stored perpendicularly on the rack (70). If the manufacturers form a colored rubber belt around the outer edge of a practice rubber weight plate (80), the colored rubber of the colored rubber belt and the black rubber of the practice rubber weight (80) flow together and mix when the rubbers are melted. Therefore, the color of the colored rubber belt is mixed with black to make the color difficult to distinguish.

To overcome the shortcomings, the present invention provides a rubber barbell weight with at least one colored rubber belt and a method of making the rubber barbell weight to mitigate or obviate the aforementioned problems.

The main objective of the present invention is to provide a rubber barbell weight with at least one colored rubber belt and a method of making the rubber barbell weight. The method of making a rubber barbell weight with as least on colored rubber belt has acts of providing at least one annular colored rubber belt, providing a mold, placing the at least one annular colored rubber belt in the mold, placing rubber raw materials in the mold, heating and pressing the mold and releasing the mold. The mold has two middle molds. Each middle mold has at least one recess formed radially in an inside wall of the mold. The annular colored rubber belt is placed into the recesses of the middle molds. The rubber raw materials are placed into the mold. Because top and bottom flanges of each recess of the middle mold limit the annular colored rubber belt only fusing with adjacent rubber raw materials, an outside surface of the annular colored rubber belt does not mix with the color of the rubber raw materials. Therefore, the color of the annular colored rubber belt is clearly identified.

Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

FIG. 1 is a block diagram of a method of making a rubber barbell weight with at least one colored rubber belt in accordance with the present invention;

FIG. 2 is an exploded perspective view of a mold used to process the method in FIG. 1;

FIG. 3 is a cross-sectional side view of a colored rubber belt put into the mold in FIG. 2;

FIG. 4 is a cross-sectional side view of rubber raw materials put into the mold in FIG. 3;

FIG. 5 is a cross-sectional side view of the mold in FIG. 4 when the mold is heat pressed;

FIG. 6 is a side view in partial section of the rubber barbell weight in FIG. 1;

FIG. 7 is a cross-sectional side view of a mold used to process the method in FIG. 1 with two rubber color belts;

• Provisional Patent
• Utility Patent

• What Is a Patent?
• What Is a Trademark or Servicemark?
• What Is a Copyright?
• Patent Laws