| 摘要 |
Grate device which may be opened comprising a set of vertical rods (2) hollow and parallel, associated to a casing (3) in a sliding manner between a closing condition, in which such vertical rod (2) are at the maximum mutual distance preventing the passage through the casing, and an opening condition, in which they are at the minimal mutual distance, and vice versa. Such device (1) further comprises a set of connecting rods (4) for the connection of the adjacent vertical rods. Each one of said connecting rods (4) having a first end (5) bound inside the longitudinal end central cavity (6) and through a respective first slot (7)of vertical rod (2) made in such vertical rod (2). The second end (8) of each connecting rod (4) is bound inside the cavity (6) of a vertical rod (2) adjacent to that one of the first end, through a respective second slot (9) of this latter vertical rod (2). At least the first end (5) of each connecting rod (4) is connected in a rotating manner, by means of a respective mobile pin (10), to a closing means (11) sliding within the longitudinal cavity (6) of the respective vertical rod (2) and fit, in the closed condition of the device (1), to close the correspondent first slot (7).
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