| 摘要 |
An assistant ceiling device designed to shield an escape hatch installed to a ceiling of an elevator cab. The assistant ceiling device comprises two elongated rail ( 10 ) and a rectangular assistant ceiling plate ( 20 ). Each guide ( 10 ) is installed at either side of the emergency escape hatch ( 1 ), and has a length longer than that of the emergency escape hatch and shorter than that of the ceiling of the elevator cab. The assistant ceiling plate ( 20 ) is laid on the rail guides ( 10 ) to shield the emergency escape hatch ( 1 ). Each guide ( 10 ) has a latching jaw ( 12 ) so as to allow the assistant ceiling plate ( 20 ) to be installed to the rail guides ( 10 ) by laying both opposite sides of the ceiling plate on the latching jaws ( 12 ). Each guide ( 20 ) is formed, at an upper end, with a slot through which a heat of a bolt cannot pass, and with a guide recess ( 18 ) through which the head of the bolt can freely move. The rail guides ( 10 ) can be fastened to the ceiling of the elevator cab with the bolts equipped to the rail guides ( 10 ).
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