| 摘要 |
PROBLEM TO BE SOLVED: To provide a trench cover which can be fixed to a receiving frame of a trench cover suspension portion without creating a gap or shaking even though a motor vehicle or the like runs over the trench cover in the connecting direction of trench covers when isosceles triangle-shaped main trench covers and right angled triangle sub-trench covers used for the U-shaped trench are employed. SOLUTION: The trench cover comprises isosceles triangle-shaped main trench covers 1 used as trench cover for the U-shaped trench and right angled triangle-shaped sub-trench cover 2 with the main trench cover 1 divided into right and left ones with linking pieces 18 protruded for linking the rear surfaces of the neighboring trench covers when connected continuously, from both ends of the trench covers connected to cover plates along bottomside 16'; 16 between leg pieces 8, 9; 5, 6 at the bottom side of the main trench cover 11 located adjacently with the sub-trench cover 2 located at the end portion, bolt attaching shelves 11 having bolt holes 10 at equal spacing respectively are provided.
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