| 摘要 |
PROBLEM TO BE SOLVED: To reduce the load on a worker when opening or closing an engine cover. SOLUTION: To the upper surface plate 8b of a building cover 8, a roller 11 is provided along the front and rear of an opening section 9; a guide rail 15 guided in horizontal direction by the roller 11 is provided for the right and left division covers 13 constituting the engine cover 12; and each division cover 13 moves horizontally in left and right direction thereby opening and closing the opening section 9 of the building cover 8 in the configuration. In this way, the weight of each division cover 13 moving horizontally can be received by the building cover 8 through the guide rail 15, roller 11 or the like, by which the worker's load can be reduced when opening and closing the opening section 9 of the building cover 8.
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