this research is the first traction component (10) a second traction component (20) of the link (33). the first combination of means (30) of the link (44). the second coupling means on the cable (40), (50), including the structure....the first traction component (10) such as the neck of the body of the second part in order to protect the good, and the trailer for the body work, first coupling means (30) of the coupling part (31) combined. the opposite of the second coupling means (40) the first coupling part (41) are combined.the second traction component (20) of the human brain in the body to the body of the dress is a part of the first pad to protect the good, to the trailer body, in order to work in the first coupling means (30) of the lower coupling part (32) combined with the \ub418\uace0, the opposition. the second coupling means (40 the lower part of the coupling part (42)) bond.the first coupling means (30) and the second coupling means (40) in the upper and the lower part of the body of each coupling part, the first traction component (10) of both sides of the first coupling means (30) and the second coupling means (40) of the coupling part 41) (31, each of coupling, and the second traction component (20) of the both sides of the first coupling means (30) and the second coupling means (40) of the coupling part (32,42), respectively, are combined, and the first coupling means (30) and the second coupling means (40) of the coupling part (31, 41) and the lower part of the joint part (32, 42) of the opposition in the independent link (33, 44) each equipped with, the the cable (50) is formed to connect with the body, it will for the first coupling means (30) of the link (33) to be connected together.the opposite of the second coupling means (40) of the link (44) connected with it, the foreign body is fixed on the coupling, the coupling devices and equipment (55) and including the neck muscles to strengthen sports equipment (100) technology opening.according to t