Stretching the plumb bob with the spring, the earthquake reduction device which utilizes the doctrine of inertia

摘要

Topic Being cheap to the residence, and the like it offers the effective earthquake reduction device.SolutionsRaising plumb bob 1 to the waypoint of cylinder and beam 2 etc such as residence with spring 3 and leaving, utilizing the doctrine of the inertia which works in the plumb bob it is the mechanism which increases the earthquake reduction effect vis-a-vis the swinging of earthquake, it pulls plumb bob 1 with the spring 3 which is stretched from the cylinder and beam 2 around and it puts in a state where it floats. Choice figure Drawing 1