Abstract: A pneumatic fender and a mouth piece metal for a pneumatic fender with an open/close valve fixed at a position in which a through hole formed in a dividing wall constituting a receiving chamber, where the valve is closed by closed position fixing members. A safety valve is isolated from a cavity of a fender bladder by a receiving chamber, the safety valve being able to be detached and attached while the pneumatic fender is in use. A confirmation test of a valve opening pressure of the safety valve is performed by opening a receiving chamber open/close valve and raising an internal pressure of a cavity of the receiving chamber to a pressure threshold via a receiving chamber communication passage. The open/close valve is fixed at a position in which the through hole is open by open position fixing member.

Abstract: A pneumatic fender and a mouth piece metal with an open/close valve is biased by a resilient member toward a closing direction of a through hole formed on a dividing wall constituting a receiving chamber. A safety valve is isolated from a cavity of a fender bladder by a receiving chamber, thus allowing the safety valve to be able to be detached and attached while the pneumatic fender is in use. A confirmation test of a valve opening pressure of the safety valve is performed by opening a receiving chamber open/close valve and raising an internal pressure of a cavity of the receiving chamber to a pressure threshold (Pm) via a receiving chamber communication passage. Upon an internal pressure (P) of the cavity being less than the pressure threshold (Pm) and greater than a standard pressure (Pc), the open/close valve opens the through hole, thus allowing the safety valve to function.

Abstract: A pneumatic fender and a mouth piece metal with an open/close valve is biased by a resilient member toward a closing direction of a through hole formed on a dividing wall constituting a receiving chamber. A safety valve is isolated from a cavity of a fender bladder by a receiving chamber, thus allowing the safety valve to be able to be detached and attached while the pneumatic fender is in use. A confirmation test of a valve opening pressure of the safety valve is performed by opening a receiving chamber open/close valve and raising an internal pressure of a cavity of the receiving chamber to a pressure threshold (Pm) via a receiving chamber communication passage. Upon an internal pressure (P) of the cavity being less than the pressure threshold (Pm) and greater than a standard pressure (Pc), the open/close valve opens the through hole, thus allowing the safety valve to function.

Abstract: A pneumatic fender and a mouth piece metal for a pneumatic fender with an open/close valve fixed at a position in which a through hole formed in a dividing wall constituting a receiving chamber, where the valve is closed by closed position fixing members. A safety valve is isolated from a cavity of a fender bladder by a receiving chamber, the safety valve being able to be detached and attached while the pneumatic fender is in use. A confirmation test of a valve opening pressure of the safety valve is performed by opening a receiving chamber open/close valve and raising an internal pressure of a cavity of the receiving chamber to a pressure threshold via a receiving chamber communication passage. The open/close valve is fixed at a position in which the through hole is open by open position fixing member.

Abstract: 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° and no more than 45°.

Abstract: 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.

Abstract: 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.

Abstract: A computer 11 of a ship monitoring device 1 arranges one kind of transmission data between two consecutive start control codes and two consecutive termination control codes. The computer 11 also 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.

Abstract: 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° to 45°, 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.

Abstract: A sensor accommodation container, attached to a cap member of a pneumatic fender and installed inside a fender bag, includes a container body attached to a through hole penetrating the cap member so as to be able to move and protrude out of the fender bag and held at a predetermined protruded position, a lid for closing the through hole, a first seal member for sealing a gap between the container body and the through hole, a communication hole for communicating inside and outside of the container body when the container body has been installed inside the fender bag and a second seal member for shutting off the communication between the inside and the outside of the fender bag via the communication hole when the container body has been held at a predetermined protruded position.

Abstract: A position of a target ship alongside is displayed in animation on a display unit 17 by the computer 11 based on any one of the positional information on the target ship alongside, which is transmitted from an automatic identification system (AIS) of a target ship alongside and is obtained by an AIS communication unit 13, positional information on the target ship alongside, which is obtained by the GNSS communication unit 14 from a global navigation satellite system, and positional information on the target ship alongside, which is manually inputted via an operation unit 18. Therefore, the latest position of the target ship alongside can be always displayed in animation.

Abstract: 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° and no more than 45°.

Abstract: 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.

Abstract: 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.

Abstract: A position of a target ship alongside is displayed in animation on a display unit 17 by the computer 11 based on any one of the positional information on the target ship alongside, which is transmitted from an automatic identification system (AIS) of a target ship alongside and is obtained by an AIS communication unit 13, positional information on the target ship alongside, which is obtained by the GNSS communication unit 14 from a global navigation satellite system, and positional information on the target ship alongside, which is manually inputted via an operation unit 18. Therefore, the latest position of the target ship alongside can be always displayed in animation.

Abstract: A computer 11 of a ship monitoring device 1 arranges one kind of transmission data between, two consecutive start control codes and two consecutive termination control codes. The computer 11 also 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.

Abstract: A pneumatic fender having a body portion is configured by laminating a plurality of reinforcing layers between the inner layer rubber 4 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° to 45°, 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.

Abstract: A sensor accommodation container, attached to a cap member of a pneumatic fender and installed inside a fender bag, includes a container body attached to a through hole penetrating the cap member so as to be able to move and protrude out of the fender bag and held at a predetermined protruded position, a lid for closing the through hole, a first seal member for sealing a gap between the container body and the through hole, a communication hole for communicating inside and outside of the container body when the container body has been installed inside the fender bag and a second seal member for shutting off the communication between the inside and the outside of the fender bag via the communication hole when the container body has been held at a predetermined protruded position.

Abstract: The transmission device is constituted by transmitting units which are accommodated within a case in a state so that, in an xyz orthogonal coordinate system, in the z axis direction only two transmitting units are disposed adjacently and so that planar conducting plates are opposed to each other; in the x axis direction, two adjacent transmitting units are disposed so that one end portion of one unit and the other end portion of the other unit are adjacent; and in the y axis direction, two adjacent transmitting units are disposed so that one end portion of one unit and the other end portion of the other unit are adjacent.

Abstract: Numeric values “a” representing a respective order of transmission by a plurality of transmitting units, and a numeric value N representing the total number of transmitting units, are set for each of the transmitting units. At startup, a transmitting unit for which the value “a” representing the order of transmission of the unit has been set to 1 sets a trigger value to N and transmits information about the value “a” of the unit and detection information from a sensor, and, when the value N is detected from a received signal, transmits the value “a” of the unit and detection information. When a value of a?1 is detected from a received signal, the transmitting unit for which the value “a” representing the order of transmission of the unit has been set to other than 1 transmits the information of the value “a” of the unit and detection information.