| 摘要 |
PROBLEM TO BE SOLVED: To provide a pit ladder device of an elevator capable of securing strength of a pit ladder easily and surely.SOLUTION: A connection mechanism part 14 comprises: a connecting pin 21; and a slot formation part 23 on which a slot 22 into which the connecting pin 21 is slidably inserted is formed. A holding mechanism part 15 comprises: a fitting pin 31; and an opening part formation part 33 on which a fitting groove 32 is formed. The connecting pin 21 and the fitting pin 31 are disposed on a gangway ladder 11, and the slot formation part 23 and the opening part formation part 33 are disposed on a gangway ladder 12. The slot 22 extends in a longitudinal direction of the gangway ladder 12. When a ladder body 13 including the gangway ladders 11, 12 is an expanded state, by slide of the slot formation part 23 to the connecting pin 21, the gangway ladders 11, 12 come close to each other, thereby the fitting pin 31 is fitted to the fitting groove 32. When the fitting pin 31 is fitted to the fitting groove 32, the expanded state of the ladder body 13 is maintained. |
