| 摘要 |
An emergency escape door device includes a primary door panel having an entrance formed in an inner peripheral surface inclined between a greater peripheral side contour a smaller peripheral side contour, and an auxiliary door panel pivotally secured to the primary door panel to selectively enclose the entrance of the primary door panel and having an inclined outer peripheral surface to mate with the inclined inner peripheral surface of the primary door panel. The auxiliary door panel may be disengaged from the primary door panel in such as an earthquake.
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