| 摘要 |
PURPOSE: A shock absorbing device for a gymnasium floor is provided to make work simple and to reduce working hours since a bracket is formed as a flat plate and is firmly fastened. CONSTITUTION: A shock absorbing device for a gymnasium floor comprises a buffer(10), and lumber(30). The buffer comprises a support(11), anti-vibration rubber(12), and a flat bracket(20). A cylindrical anti-vibration rubber is integrally formed on the center of the support. A nut(13) is fixed to the upper part of a vertical hole(12a) of the anti-vibration rubber. The flat bracket comprises a bolt(21). The bolt is screwed to the nut(13). The bolt comprises a nut hole(21a). The nut hole passes through an elongated bolt(22), the lumber and the flat bracket. The buffer is continuously installed on the gymnasium floor. Plywoods are continuously installed on the lumber. Wood floor-members are continuously installed on the upper parts of the plywoods. |
