| 摘要 |
A cover mechanism is provided that includes a first assembly having: a first flexible cover (12), a first pivot arm unit (14) engagable with a trailer (10) or other open container, and a first roller (16); and a second assembly having a second flexible cover (18), a second pivot arm unit (20) securable to said trailer (10) between the first assembly and a second end of the trailer, a second roller (22). The first pivot arm unit (14) is operative to pull the first flexible cover (12) over the trailer (10) from one end of the trailer toward a central portion of the trailer and the second pivot arm unit (20) is operative to pull the second flexible cover (18) over the trailer (10) from the opposite end of the trailer toward a central portion of the trailer.
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