| 摘要 |
PROBLEM TO BE SOLVED: To improve the visibility of a door and habitability by forming a door with a pane of glass, openably fitting the door to a cabin via hinges, holding the closed state of the door with a door lock, and locking the opened door with a striker. SOLUTION: The left side of a cabin 7 is expanded outward along the rotating locus of a swivel base 4, the rotation center of a door 13 is located near the apex of an expansion section, and the door 13 is made rotatable over 180 deg. around the center. When the door 13 is fully opened, a striker 29 is engaged with a receiver 30 with the door 13 stored inside, and the fully opened attitude can be held. A metal plate extended in the longitudinal direction is fixed to the inner face, a door lock 28 and the striker 29 are arranged on it, and the metal plate serves as the reinforcing material of glass and the fitting member of the door lock 28 and the striker 29. A handrail for alighting and boarding is fixed to the metal plate, and upper and lower hinges 27 are connected together by a metal band plate. The brace-like handrail is provided between the metal band plate and the metal plate, and the pane of glass door 13 can be reinforced.
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