Ashimori Industry Co., Ltd.

Sanski Engineering Co., Ltd.

Katsuhiko Azuma

Yasuhiro Ueda

Isaburo Yagi

Koji Aso

Fumiaki Tsuchiya

Ichiro Seto

Nobuyasu Kishibe

Izumi Taniguchi

Provided is a fire-fighting system that has a very simple structure with only a hose and a water discharge nozzle mounted on a vehicle, can bring the vehicle close to the fire site by automatic operation or remote control, and minimizes the occurrence of a water hammer when water is supplied. A hose reel is installed on a base which is installed on a vehicle, so as to be rotatable around a rotary shaft extending vertically, a hose having shape retaining property is spirally wound around the hose reel and around the rotary shaft, the lower end of the hose is connectable to a water discharge pump installed behind the vehicle, and the upper end of the hose passes through the rotary shaft of the hose reel and is connected to a water discharge nozzle installed at the upper position of the vehicle.

Water-discharging machine

A laying method for laying communication cables () is provided which allows to lay optical fiber cables () in an underground pipeline such as a sewage pipe neither placing direct tension nor allowing slack on them, and for a main pipe in which a plurality of optical fiber cables () are to be laid, the method also allows to lay optical fiber cables () in the upper space of inside the pipeline and to obviate the need of an expensive robot for the laying operation. In the proposed laying method, a high-strength low-elongation tension member is disposed to be slidable in the lengthwise direction along each optical fiber cable (), and the tension members () are drawn into the underground pipeline () to tension the trunk tension member () thereby stretching the trunk tension member () substantially straight in the underground pipeline (), and thus the optical fiber cables () are laid in the upper space of inside the underground pipeline (). Also the branch tension member () is tensioned in the branch pipe () to lay the optical fiber cables () in the branch pipe without allowing slack.

Method and structure for laying communication cable in underground line, and members used for laying

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Osaka, Japan

Katsuhiko Azuma