| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary door preventing users from being injured or died by the catching accident when their hands, legs, or body are caught by a fine gap between the door stile and the outer frame as the door is closed. <P>SOLUTION: When one's hands, legs, or body is caught in a gap between the door stile 4 and the outer frame 3 or drawn therein when the door is in rotation, When a force larger than a predetermined figure acts on the door outer stile 4, stopper 12 comes off, and the door is folded at the middle and hence, a small gap between the door stile 4 and the outer frame 3 is widened in a wide space hence, even if hands or body is caught, a necessary space for the hands or the body can be secured, accordingly, such an accident that hands, body are caught in a narrow gap or drawn therin can be prevented. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
