UNLOCKING STRUCTURE OF SIDE SLIDING DOOR FOR ROLLING STOCK

PROBLEM TO BE SOLVED: To enable a side sliding door to be unlocked by an operation outside a rolling stock while maintaining safety of passengers when electrical supply to the rolling stock is cut off, and enhance the durability, mounting workability and maintainability of an unlocking structure of the side sliding door. SOLUTION: An electric locking means 5, which is equipped with a mechanical release mechanism 36, is annexed to the side sliding door 3. The mechanism 36 of the locking means 5 and unlocking means 7 and 8 are coupled together by wire cables 47 and 48. An operation part 9 of the unlocking means 7 is arranged near the sliding door 3 inside the rolling stock so as to be made operable outside the rolling stock. The sliding door 3 is provided with a narrow- opening-of-door operating means 25 for allowing the sliding door 3 under a fully closed state to be opened a little. The width of narrow opening of the sliding door 3 using the means 25 is in a range which allows manual operations of the unlocking means 7 and 8 outside the rolling stock and makes the entrance/exit of a person impossible. The fully closed state of the sliding door 3 is maintained by a closing-of-door urging means 24.