| 摘要 |
<p>PURPOSE:To provide a floating device which is constituted such that the container and the cover of a containing body in which a floating body is contained are maintained in a tightly fastened closed state by means of a rope on which a tension is exerted through the force of an energized fastening spring, the rope is cut by a water-responding cutting device operated responding to water to open the cover, the floating body in the containing box is expanded through the working of an air-filling device, the floating body gradually floats out from the containing box and is completely expanded. CONSTITUTION:A container 1 and a cover 2, which a containing box comprises, are maintained in a watertight and fastened state by a fastening device. The fastening device is formed such that a spring containing cylinder 10 in which a fastening spring is contained ad a water-responding cutting device B', which is operated responding to water, are mounted in a state to be intercoupled by means of a rope, and the spring containing cylinder 10 and the water-responding cutting device B' are pulled in a direction in which they are positioned facing each other. An expansion type floating device is constituted such that, with this state, the rope 8 is cut by the water- responding cutting device B', a fastened state is released, and a gas-filling device attached to the floating body is automatically operated to expand the floating body.</p> |
