To provide a multi-door type passing device preventing simultaneous opening of a door facing one room side when a door facing the other room side is opened in the multi-door type passing device formed of a box body having doors facing a plurality of rooms set to a predetermined atmosphere and allowing passage between the rooms through the box body.
This multi-door type passing device formed of the box body having the doors facing the plurality of rooms set to the predetermined atmosphere and allowing passage between the rooms through the box body, is provided with handles for opening/closing the doors; a locking means extended interlocked with the handle to fix the door; a detecting means for detecting the fixed or non-fixed state of the door by the locking means; and an interlocking mechanism having a control means for putting the door facing the one room side, into the locked state based on the detected result of the non-fixed state of the door facing the other room side detected by the detecting means.
ABE EISAKU
| JPS6149080A | 1986-03-10 | |||
| JPS5261946U | 1977-05-07 | |||
| JPS57109153U | 1982-07-06 | |||
| JPH0941763A | 1997-02-10 | |||
| JPH0710322U | 1995-02-14 | |||
| JPH0584799U | 1993-11-16 |
Shinichi Abe
Yuji Tsujida
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