| 摘要 |
PURPOSE:To improve durability by improving the heat radiation of bumper rubber, by providing an exposed part on a metallic component which is built in the bumper rubber. CONSTITUTION:A bumper rubber 11 consists of an elastic body 12 and a metallic component 13, such as a metallic spring to be built in the elastic body 12. The bumper rubber 11 is made difficult to fell down by a metallic component 13 consisting of an incorporated part 13a and an exposed part 13b. As the exposed part radiates heat of the elastic body outward, the bumper rubber 11 does not become a high temperature and its durability is improved. |
