| 摘要 |
PROBLEM TO BE SOLVED: To prevent the falling accidents of walkers due to scattering of game balls and to block the game balls from flowing out of a hall at the time of an earthquake or a fire. SOLUTION: Structures B11, B12, B13, B21a, B21b, B22a and B22b for paths whose upper surfaces function as the paths for walking are spread on a floor inside the hall and the level of the floor is slightly raised. Recovery grooves are formed at prescribed parts and the game balls scattered on the upper surfaces of the structures for the paths are dropped and recovered. The recovery grooves G11a and G11b are arranged at both sides of an island-like structure 11 for attaching game stands and a player sitting in a chair 30 facing the game stand can place feet inside the grooves. The recovery grooves G21 and G22 are formed at positions to interrupt the flow path of the game balls which roll on the upper surfaces of the structures B21a and B22a for the paths and turn to an entrance E1 and an emergency exit E2 and the game balls are blocked from blowing out of the hall. On the upper surfaces of the recovery grooves G21 and G22, mesh-like lid plates are fitted. COPYRIGHT: (C)2005,JPO&NCIPI
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