| 摘要 |
PROBLEM TO BE SOLVED: To provide a single swing door mounting structure enabling a door to be detached easily when the door cannot be opened as the result of a strong earthquake causing deformation of a door frame while the door is closed or when the door obstructs transportation of devices, a desks or the like into a building or room. SOLUTION: The single swing door includes a door frame 1 and a single swing door 2 to be loosely fitted into the door frame 1, which are connected together via hinges B comprising joint panels A oppositely installed at a joint position between the door frame 1 and the single swing door 2, the joint panels A comprising trapezoidal panels having their door-opening-side edges longer than their door-closing-side edges C and provided with inward grooves on both the upper and lower edges of diagonals thereof, with trapezoidal pivoting blade 7 provided in the inward grooves 4 of the joint panels A.
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