| 摘要 |
<p>PURPOSE: To reduce an impact on a player by forming a pattern of same sized and repeated crossed bodies and connecting modular tiles of square plastic grid of which four corners are surrounded by peripheral walls detachably at the edge of a floor. CONSTITUTION: A flat surface 11 is supported by a plastic supporting grid which is surrounded by four sides of a peripheral side 12 and forms a square including repeated crossed bodies 13 having a common height and a common width. Then, a projected loop 20 having an opening part 30 is formed consistently in a peripheral wall 12 of the grid, and an inserting body 21 of the grid to be connected is inserted into it. In addition, the inserting body 21 is formed of a spring bias grip 31 and a stabilizer 32. Thus, an impact on a player who performs an abrupt motion can be reduced.</p> |
