| 摘要 |
A grate (1) and its production method; the grate comprising a grid (12) equipped with a plurality of first and second bars (14,15) connected together by at least one lever (18) so that it can be freely switched between a first open position, in which the grid (12) presents its maximum extension in the direction (17), and a second position, of minimum longitudinal extension, in which the first and second bars (14,15) are arranged close together; the first connecting levers (18) being coupled to the respective first and second bars (14,15) exclusively by means of turning pairs (19); the turning pairs (19) of each first and second bars (14,15) being respectively aligned with each other. |
