| 摘要 |
Sheet metal plate (10) for creating flooring, particularly of industrial vehicles, over which trucks are to run, having a plurality of patterns, the maximum height of said reliefs ranging between 0.2 and 1.5 mm, said reliefs having a friction surface which has a mean width of at least 1 mm, in which said reliefs are arranged in a plurality of aligned groups of reliefs all of the same shape, the same orientation, and with their centres of gravity substantially aligned in one and the same given direction (D), the minimum distance, measured in said direction (D), between two adjacent reliefs of one and the same aligned group being less than 6 mm. The direction (D) in which the aligned groups are aligned advantageously coincides with the direction (De) in which the trucks run. A test measuring vibration can be used to characterize the ability of the sheet metal plate to emit noise of low intensity without the need to resort to acoustic pressure measurements on industrial vehicles. For preference, this is a sheet metal plate produced by rolling with a final pass over an engraved cylinder. |
