The Yokohama Rubber Co., Ltd.

Minami Izumi

Shu Yamada

Shigeki Sakakibara

Michito Kaneko

Koji Nakatani

Akihiro Iemoto

Masahiko Miyamoto

Kazunori Ono

Yoshiaki Hara

Shigehiko Amano

A vertical pneumatic fender comprises a fender body having bowl-shaped hemispherical portions joined to both ends in the axial direction of a cylindrical body portion, and a weight that is connected to the bottom of the fender body. The vertical pneumatic fender accommodates ballast water in an interior space of the fender body, and is provided with a backup chain. One end of the backup chain is connected to the fender body in a position that is offset with respect to the axial line of the fender body, and the other end is connected to the weight. The fender body and the weight are connected with the backup chain in a sack state. The slope of an axial orthogonal reference line and an axial parallel reference line are detected by way of a reference line detector.

Vertical pneumatic fender and monitoring method for same

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

The present technology provides a system for detecting the tensile force of a guy rope in a pneumatic fender capable of preventing the breakage of the guy rope, and a pneumatic fender. Tensile force data detected by a tensile force sensor detecting the tensile force of a guy rope is transmitted by a wireless transmitter, and is inputted to a computation device through a receiver. An alerting device issues an alert when the tensile data is at least equivalent to reference data previously inputted to the computation device.

System for detecting tensile force of guy rope in pneumatic fender and 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.

Pneumatic fender

A computerof a ship monitoring devicearranges one kind of transmission data between two consecutive start control codes and two consecutive termination control codes. The computeralso arranges information indicating a type of the transmission data between the transmission data and the start control codes and between the termination control codes and the transmission data. In this way, the transmission data is transmitted in form of packet data. Therefore, transmission data in information communication between ships and sensed information in information communication of fenders can be easily distinguished from each other. In addition, a type of information transmitted as the transmission data can be easily identified.

Ship monitoring device

A pneumatic fender having a body portion is configured by laminating a plurality of reinforcing layers between the inner layer rubber and the outer layer rubber. Cords of reinforcing layers are laminated adjacent to each other. The cords intersect and are arranged at a predetermined cord angle with respect to the body axial direction. An intermediate rubber layer is interposed between each of the reinforcing layers. In an uninflated, neutral state, the thicknesses of the intermediate rubber layers are 1 mm to 5 mm, and the cord angle is set from 15&#xb0; to 45&#xb0;, so when the interior of the fender is filled with air to the prescribed internal pressure, the cord angle increases to a static angle while the intermediate rubber layers deform in shear, and the body portion increases in diameter and inflates.

A pneumatic fender is configured to improve workability during folding up, be conveniently secured during transport, and suppress damage during folding up and during transport, thus increasing durability. A method for transporting the pneumatic fender also has these characteristics. In the, pneumatic fender, at least one crease is formed extending in the lengthwise direction at the outer surface of a torso body section in the pneumatic fender. After the air has been discharged from the pneumatic fender, a bag is pushed flat with mirror body sections as the upper surface of the torso body section and then with the crease as a boundary, the bag is folded towards the upper surface. In this folded state, the pneumatic fenders are loaded into a container and transported.

Growing community of inventors

Hiratsuka, Japan

Minami Izumi