A PRESSURE RELIEF VALVE

摘要

A wheel rim for use with an inflatable tyre for a vehicle comprises a pressure relief valve or a weakened section in the rim (11). The valve may comprise a main body (1) having flanges (2, 3) sealing against opposite faces of the rim (11) and legs to retain the valve in the rim. The weakened section may comprise a number of fingers radiating out from a central point. When the pressure inside a tyre on the rim exceeds a certain value the valve or weakened section releases the pressure to prevent over inflation and possible injury.