| 摘要 |
PROBLEM TO BE SOLVED: To provide an antifreezing structure capable of being easily installed in new and existing automatic door devices and capable of preventing freezing of snow and water making an entry into a groove part of a guide rail.SOLUTION: An antifreezing structure 1A prevents freezing of snow and water making an entry into a groove part 23a of a guide rail 23 provided below a door body 21 for opening/closing an opening formed in a wall part for partitioning the inside 11 and outside 12 of a room. A heat introduction mechanism 3A for introducing heat on the inside 11 of the room is provided in the groove part 23a of the guide rail 23. |
