COMPONENT-ENCLOSED EXPANSION BAG BODY, THROWING RECOVERY TYPE NATURAL DISASTER OBSERVATION DEVICE USING THE SAME, AND NATURAL DISASTER OBSERVATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a natural disaster observation device that can be recovered even in winter, that is not buried even when snowslide occurs, and that can be easily installed even on a steep mountain slope where a snowslide is expected to occur.;SOLUTION: A space part enveloping components 30 and 31 is provided, the components are installed roughly on the center of a through-hole 12 penetrating the rough gravity center of a component-enclosed expansion bag body 11 comprising a flexible sheet expanded from a roughly flat state during contraction due to air entry from a suction/exhaust port, and the bag body expands so as to close the through-hole forming the space part when it is filled with a gas from the suction/exhaust port. Thus, the components installed in the through-hole are pressed so as to be wrapped in the flexible sheet, and held/fixed at the positions. Therefore, the components are prevented from falling even when they are thrown down from the sky.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2018,JPO&INPIT