WHEEL CONSTRUCTION

摘要

A wheel (11) having a wheel rim (13) and a centre portion configured as a central disc (15). A tyre (17) is mounted on the rim (13). The wheel rim (13) comprises a generally annular body (21) incorporating a rim well (25). The rim well (25) defines a radially inner portion (27) which presents a radially inner face (29). The radially inner face (29) is of an annular configuration centred about the axis of rotation of the wheel. The centre disc (15) comprises a generally circular plate (31) having an outer periphery (35). The plate (31) incorporates a centre hole (37) and circumferentially spaced mounting holes (39) for receiving wheel studs. The outer periphery (35) is of a diameter which allows the plate (31) to be snugly received within the confines of the annular face (29) of the rim (13).The annular inner face (29) of the rim (13) has an axial extent (in the direction of rotation of the wheel) which is significantly greater than the thickness of the plate (31). In this way, the plate (31) can be positioned within the confines of the annular inner face (29) at any one of a plurality of available positions. The plurality of available positions includes three positions identified by reference characters A, B and C. The plate (31) can be secured to the rim (13) at the selected available position by being welded thereto.