| 摘要 |
An extensible arm mechanism according to the present embodiment has a first structure group (20) formed by linking a plurality of first structures (22) together and a second structure group (21) formed by linking a plurality of second structures (23) together. Each of the first structures (22) has a lock section (22b1, 22b2) for securing the second structures (23). When the first structure group (20) and the second structure group (21) are extended, the lock sections (22b1, 22b2) secure the second structures (23) to the first structures (22). |
