| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automatic revolving door opening and closing in the horizontal direction and having a broad opening width, while a revolving door body is safely stopped before an obstruction, although a rotation cannot be stopped instantaneously and a stopping distance is required even when detecting the obstruction because the revolving door body has a large inertia force in the process of closing. <P>SOLUTION: A housing-side wall door 1 and an intrusion-preventive side wall door 10 are mounted in a form inscribed (or circumscribed) to both side walls 2, while a wing door 4 in a width at the stopping distance adding an allowance in the direction of rotation of the outer end of the revolving door body 3 is provided. The housing-side wall door 1 is housed in the antirotational direction when opening, and opened in the left and right directions together with the rotation of the wing door 4. When the door is closed and the opening width does not allow entering of a person, the intrusion-preventive side wall door 10 is closed in the antirotational direction and closed from both left and right directions together with the rotation of the wing door 4. The wing door 4 and the intrusion-preventive side wall door 10 are moved freely or an urging means is mounted for opening the doors while the rotation of the revolving door body 3 is stopped simultaneously by detecting the obstruction 11 in the process of the closing. <P>COPYRIGHT: (C)2010,JPO&INPIT |
