| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an open-prevention device capable of reliably preventing a door from being opened at occurrence of earthquake free from functioning failure only by closing a door.SOLUTION: An open-prevention device 10 includes: an engagement receiving base 21 one of which is attached to the front face of a door 51 as an attachment plane (positioned at the front-side of the door 51) and an engagement receiving part 23 positioned at the other side of the door; a swing bearing base 31 one of which is attached to the door plane of the door 52 (front side plane of the door 52) and a swing bearing 33 attached to the other side; and a swing shaft 43 pivoted by the swing bearing 33. The open-prevention device 10 further includes engagement arm 41 having an engagement part 44 on one end thereof to be engaged with the engagement receiving part 23.</p> |
