B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
B60C7/00—Non-inflatable or solid tyres
B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
B60C7/12—Non-inflatable or solid tyres characterised by means for increasing resiliency using enclosed chambers, e.g. gas-filled
B60C7/121—Non-inflatable or solid tyres characterised by means for increasing resiliency using enclosed chambers, e.g. gas-filled enclosed chambers defined by a distinct core