The Yokohama Rubber Co., Ltd.

Akihiro Iemoto

Shu Yamada

Michito Kaneko

Minami Izumi

Shigeki Sakakibara

Gang Hou

Yoshiaki Hara

Kouko Tsuchiya

Satoshi Shibayama

Shunichi Ono

Keiichi Hasegawa

Satoshi Shimanoe

Minami Shibuya

In a pneumatic fender, reinforcing layers of a body portion and reinforcing layers of a predetermined range in the longitudinal direction of a fender near a boundary between each hemispherical portion and the body portion are formed by aligning cords of reinforcing layers of the body portion and that of the predetermined range in parallel, and in a neutral state without expansion, the cords of the reinforcing layers of the body portion meet each other and the cords of the reinforcing layers of the predetermined range meet each other, and cord angles A and B are each set to from 15&#xb0; to 45&#xb0; with respect to the longitudinal direction of the fender. When the interior of the fender is set to a specified internal pressure, the cord angles A and B increase to extent of a static angle, and the body portion and the predetermined range expand.

Pneumatic fender

A vertical pneumatic fender includes a bob connected to a lower hemispherical portion, an internal space containing a predetermined amount of ballast water, a body portion constituted by reinforcing layers layered between an inner rubber layer and an outer rubber layer, cords of adjacently layered upper and lower reinforcing layers disposed intersecting each other at a predetermined cord angle with respect to a cylinder axial direction, and intermediate rubber layers interposed between the reinforcing layers, where the cord angle in a neutral state is set to at least 15&#xb0; and no more than 45&#xb0;.

Vertical pneumatic fender

Provided is a pneumatic fender that suppresses damage to a flexible hollow body and an energy-absorbing body and exhibits improved ship sway reduction effects. A pneumatic fender is provided with an orifice that allows for communication between an interior space of a flexible hollow body and the interior space of the casing, and a safety valve that opens and allows for communication between the internal space of the flexible hollow body and the internal space of the casing by opening when the internal pressure of the flexible hollow body reaches a predetermined pressure.

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Hiratsuka, Japan

Akihiro Iemoto