釣橋（Drawbridge）、跳ね橋（はねばし）可動橋。撥ね橋。跳開橋。桔橋。刎橋。

 

“Open” and “One Billion Americans” offer big ideas about globalisation, past and future

ECONOMIST.COM

Two books expound the virtues of open societies

Lowering the drawbridge

A drawbridge or draw-bridge is a type of moveable bridge typically at the entrance to a castle or tower surrounded by a moat. In some forms of English, including American English, the word drawbridge commonly refers to all types of moveable bridges, such as bascule bridges, vertical-lift bridges and swing bridges, but this article concerns the narrower, more historical definition of the term.

釣橋（Drawbridge）是一種可動橋，常用於護城河上的橋，若城外有警可挽起釣橋以斷其路。

葡萄牙拉古什一座釣橋

中國明代釣橋以檜槐木為橋體，並以鐵環與鐵索混麻繩繫於城樓上。

跳ね橋（はねばし）とは城門によく見られるような可動橋。撥ね橋。跳開橋。桔橋。刎橋。