A tubular vibration-damping device including: an inner shaft member extending vertically; an outer tube member arranged so as to be externally about the inner shaft member; a connecting rubber elastic body elastically connecting the two members with each other; and a plurality of hollow parts formed in the connecting rubber elastic body so as to open onto an axially lower face thereof, at least one of the hollow parts being a drain hole penetrating through the connecting rubber elastic body vertically, wherein the hollow parts are formed at an odd number of locations which are not less than three and are positioned at regular intervals in a circumferential direction of the connecting rubber elastic body, and the hollow parts are arranged so as not to overlap mutually as viewed in a diametrical direction of the outer tube member.
TUBULAR VIBRATION-DAMPING DEVICE
2017-06-01
Patent
Electronic Resource
English