| 摘要 |
PROBLEM TO BE SOLVED: To provide a door having a device for preventing an accident of being injured by pinching fingers or nipping the body in a motor-driven rotary door, in the door strongly pressed to a door stop without causing impact without accelerating when closed. SOLUTION: The door continuously rotates up to closing when closed a little by fully opening when opened a little, for preventing the accident by keeping a rotatable state in the opening direction for a little time just before closing, by stopping once by rotating in the opening direction before closing, by reducing a speed by contracting over time without contracting a spring instantly. COPYRIGHT: (C)2009,JPO&INPIT
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