| 摘要 |
PURPOSE:To raise the characteristic of a fender by a method in which a fender is made up of plural rubbery elastic components having different elasticity modulus by arranging the components in such a way as to vary the apparent elasticity modulus in the axial direction of the fender. CONSTITUTION:A fender 10 is made up of rubbery elastic components 11 and 12 having different elasticity modulus by arranging the components 11 and 12 in such a way as to vary the apparent elasticity modulus in the axial direction of the fender 10. The elasticity modulus of the components 11 and 12 is set up to N1>N2. The component 12 is set on the periphery of a cylindrical core A formed of the component 11 and they are integrally vulcanized and bonded to each other. By varying the apparent elasticity modulus in the axial direction by using the same shape of molds in this way, desired reaction characteristics curves can be obtained. |
