| 摘要 |
<p>The invention relates to an apparatus for opening and closing covering means for a furniture raising/lowering type floor equipment employable for a building such as a hall, a theater, a gymnasium or the like wherein the covering means in the form of a rigid cover plate (12) is accommodated in a cover plate accommodating gap with the aid of a link mechanism when a plurality of furniture pieces (7) accommodated in a furniture accommodating chamber (4) in an inoperative state are to be raised up to stand upright above the floor surface of the building thereby to assume an operative state. The link mechanism comprises an opposing pair of links (13) each having cutouts (14, 15) formed at the opposite ends thereof and an opposing pair of slide links (11) pivotally connected to one end of the cover plate (12). A flexible cover plate adapted to be laid across the furniture accommodating chamber may be substituted for the solid cover plate (12). The flexible cover plate includes an opposing pair of chains with a flexible cover portion comprising a plurality of plate pieces bridged therebetween at the central part thereof while hollow spaces are formed in front of and behind the flexible cover portion. Alternatively, the flexible cover plate may include a single hollow space in one half region thereof. <IMAGE></p> |
