| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a takeoff board for jumping gymnastics, the takeoff board being excellent in safety, resiliency and impact absorbency and being particularly suitable for practice of unskilled junior athletics. <P>SOLUTION: The takeoff board includes: a base board 1 that is formed substantially in a rising gradient in the upper surface toward the front; and a top mat 2 that is superposed on the base board 1 and integrally joined. The base board 1 is composed of half-hard synthetic resin low foam. The top mat 2 is composed of a flat bag body that is made to form a regulated space 24 of a prescribed height inside by stretching a large number of coordinated yarns 23 between two upper and lower flexible airtight sheets 21, 22, wherein compressed air is filled in the flat bag body, with a high resiliency provided. <P>COPYRIGHT: (C)2013,JPO&INPIT |
