sporting tool using spring hose amp; bead

摘要

In the hose 1 of a certain diameter and length made of elastic material, an outer diameter spring 2 with the original length that is not stretched or shortened is equal to the length of the hose and fits the inner diameter 4 of the hose. After inserting the spring hose (1, 2) made of a combination, the outer diameter (6) in it is smaller than the inner diameter (5) of the spring (2) of a material having a certain weight enough to feel a sense of movement After inserting the bead (3), the ends (12, 13) of the end of the spring hose in which the beads are embedded are joined to each other (14) to be completed in a single ring shape, which is finished in the waist When the waist is turned to the spring, the bead in the annular passageway (7) formed in the spring (7) can be continuously rolled in the same direction (9) according to the movement direction (8) applied to the design. Exercise equipment