| 摘要 |
PROBLEM TO BE SOLVED: To provide an anti-slip device for a grating preventing the positional shift of the grating for covering a gutter caused by passage of an automobile because of the fact that the problem becomes more serious when the gutter is inclined in the longitudinal direction of the gutter and that it sometimes results in noises. SOLUTION: In order to solve the problem, a fixed shaft 10 is made to pass through a frame material 5 of the grating 4 for covering the gutter 1 or a locking piece 15 connected thereto, and the front end of the fixed shaft 10 is press-contacted to an interior wall of the gutter 1.
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