| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
A timber folding bridge is developed in order to keep the trafficability in isolated village in mountain area after natural disasters. This bridge is made of timber which is in market size, and can be transported by a track because it is compact and light. The mechanical system to unfold the bridge is scissors structure (magic hand for toy or pantograph for rail way car etc.) consist of bars and hinges. To move the unfolding system by human-power, a gear box which can change the rotation movement to elongating movement is developed. It is possible to make the superstructure of the bridge to unfold by small power. And also, the model in the size that a person can walk is build and the connection of members and the unfolding movement are investigated.
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