| 摘要 |
PROBLEM TO BE SOLVED: To equip an existing door frame with a door open-close system. SOLUTION: The door open-close system has a door 1 and an auxiliary plate 2 rotatably connected on one butt-end face side of the door 1 through hinges 3. The door 1 and the auxiliary plate 2 are opened and closed and moved in other directions respectively through an angle of 90 deg., and can be rotated when the door 1 is opened and closed and moved. A guide section 4 guiding the open-close movement of the door 1 and the auxiliary plate 2 is composed of a door frame 5 and a member capable of being installed to an adjacent wall body 6 by post attachment through the angle of 90 deg. to the door frame 5.
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