| 摘要 |
A covering apparatus, for a receptacle having an open top, including a cover having a first end and a second end and a length and width sufficient to cover the open top, a spring loaded roller, rotatably mounted at one end of the receptacle, and to which the first end of the cover is attached, the roller being adapted for retracting and winding the cover about the roller, a cable having a first end and a second end, the first end of the cable attached to said second end of the cover and adapted for unwinding said cover from the roller, a cable spool, rotatably mounted at one end of the receptacle and attached to which is the second end of the cable, the cable spool being adapted for spooling and unspooling the cable, and an energizing means for causing the cable spool to rotate. The apparatus has a first covered configuration in which the cover is unwound from the roller and extends over the top of the receptacle, and a second uncovered configuration in which the cover is wound about the spring loaded roller and the top of the receptacle is uncovered.
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