| 摘要 |
A rim for a wheel of a seeder machine, comprising: a main body (21,22) provided with a central hub (3) for associating the rim to a rotation axis (Ro), and with a channel (4), positioned on a periphery of the main body (2) and predisposed to receive a tyre (40). The main body (21,22) comprises an internal portion (22) and an external portion (21) removably coupled to one another, the internal portion (22) being provided with an external surface (22a) which, on a section plane containing the rotation axis (Ro), exhibits a curved concave profile.
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