| 摘要 |
PROBLEM TO BE SOLVED: To provide a retaining structure of a door shaft member capable of preventing doors, from falling over because the door shaft member comes off, even when excessive force and displacement such as vibration caused by a large earthquake are applied.SOLUTION: A retaining structure of a door shaft member prevents a door 5 from falling over because a shaft member 6 for supporting a folding door 1 as a door comes off. An enlarged diameter part 62a is formed in a shaft body part 62 which is a projection portion of the shaft member 6 provided on an upper face part of the door 5 to be projected upward. A tip of the shaft member 6 is fitted into a bearing hole 41 within an upper rail 3 provided in a door frame 21 on an upper side, and also the shaft body part 62 of the shaft member 6 is fitted into a cutout part 8a of an upper side come-off prevention member 8 fixed to the door frame 21 on the upper side to make the enlarged diameter part 62a be upward, and thereby regulating a movement of the enlarged diameter part 62a toward the lower side of the cutout part 8a. |
