| 摘要 |
PROBLEM TO BE SOLVED: To provide a new product that is a base-isolation implement for a gravestone for preventing a collapse on the occurrence of earthquakes.SOLUTION: A support 1 with a required height is positioned in a central part of an annular balance weight 2 with a plane assuming a shape of a perfect circle. The annular balance weight 2 is provided in a suspended state at the upper end of the support 1 in such a manner as to be nondirectionally swingable on the plane. The support 1 is fixed to a central part of a top surface of a pole stone A of a gravestone. |
