| 摘要 |
PURPOSE: To enhance the impact resistance of the heel part of a safety shoe. CONSTITUTION: A groove part 24 opened outside is formed in the heel part 21b of the front rubber bottom 21 of a safety shoe while it is formed by vulcanization, and an impact absorbing material 25 such as sponge is insertedly fitted in this groove part 24. Thus, the impact resistance of the heel part 21b can be enhanced, and also the forming volume of the heel part 21b can be reduced, and further the forming time can be shortened and the quality and moldability can be enhanced. |
