| 摘要 |
<p>PURPOSE:To reduce the weight of the above shoe sole and to prevent the thrusting up by the ruggedness of the ground surface and spikes as well as to lessen the fatigue after long-term wear of the shoes by laminating the layer of an ultra-high-hardness urethane prepolymer compd. of an adequate thickness on the rear surface of the shoe sole body consisting of rubber and polyurethane formed to a prescribed thickness. CONSTITUTION:The layer 3 of the ultra-high-hardness urethane prepolymer compd. having the thickness (0.05 to 0.5mm) of about 30g per 64cm<2> is formed via, for example, a thermoplastic polyurethane adhesive agent layer 2 over the entire rear surface of the main body 1 of the shoe sole molded integrally with spike parts 1a to the prescribed size of a prescribed thickness. Uniform hardness, strength and bendability are assured without increasing the thickness and weight of the main body of the shoe sole so much and the side of the surface installed with the main body of the shoe sole maintains resilience and is strong according to the above-mentioned constitution. In addition, the shoe sole has moderate hardness, bendability and repulsive elasticity and lessens the fatigue by absorbing the energy transmitting in the shoe sole by the shoe sole.</p> |
