IMPROVED VALVE UNIT FOR INFLATING WHEELS

摘要

The invention relates to a valve unit (1) with a single-piece valve body (4) comprising the cylindrical collar (5), the valve seat (7) and the main duct (9) and the auxiliary duct (10). The cylindrical collar (5) projects from a reference plane (12) obtained in the valve body (4) and configured so that it can be arranged against the rim (2) when the cylindrical collar (5) is inserted in the hole (6). The cylindrical collar (5) has its end (5a) configured so that it can be deformed and can define a flared portion (13) of the main duct (9) which interferes with the rim (2) at the level of the hole (6) thus obtaining means (11) for fixing the valve unit (1) to the rim (2).