| 摘要 |
A multi-piece wheel structure (16) permits inflation of a tire (10) mounted thereon only when components constituting the wheel structure (16) are locked together. The wheel structure (16) includes an annular rim base (18) having an outer periphery (30) with an indentation (36), an annular restraining flange (22) arranged about the rim base (18) which prevents axial movement of the tire (10) mounted on the rim base (18), a locking ring (24) which is insertable in the indentation (36) between the restraining flange (22) and the rim base (18) and on one axial side of the restraining flange (22), a conduit structure (44, 46) which extends through the rim base (18), at least one connection hole (52) in the rim base (18) connecting the conduit structure (44, 46) to the indentation (36), and a sealing plug (26) located in the hole (52) in sealing engagements with the rim base (18) and properly assembled locking ring (24). If the locking ring (24) is improperly assembled in the indentation (36) the sealing plug (26) escapes from the connection hole (52), passes into the indentation (36), and permits escape of air from the tire's interior (10a). |
