Patent ID: 9499243
Filing Date: 2016-11-22
CPC Classification: B63B,E02B,Y02A

Claim Text:
1. A vertical pneumatic fender comprising a cylindrical body portion; and hemispherical portions at both ends of the cylindrical body portion, the body portion being constituted by a plurality of reinforcing layers layered between an inner rubber layer and an outer rubber layer, the reinforcing layers being cord layers formed from a multiplicity of cords arranged in parallel to one another, cords in adjacently layered upper and lower reinforcing layers being disposed so as to intersect one another at a predetermined cord angle with respect to a cylinder axial direction, a bob being connected to the lower hemispherical portion, and ballast water being contained within an internal space of the fender, wherein the fender is characterized in that: intermediate rubber layers are interposed between the reinforcing layers, the cord angle is set to from 15° to 45° both inclusive in a neutral state, and an air injection device for injecting air is connected to the internal space.