Patent ID: 7984781

Claim:
An under-seat structure of a road vehicle for supporting an engine on a vehicle body frame wherein an oil level gauge and an engine oil supply pipe are mounted on the engine comprising: at least one seat being detachably mounted on the vehicle body frame with the engine being mounted below the at least one seat; an inner cover disposed between the at least one seat and the engine, said inner cover defining a heat shield for reducing heat from the engine to the at least one seat; wherein the oil level gauge is mounted on a side portion of a crankcase and the engine oil supply pipe extends in substantially the frontward direction of the vehicle body from the crankcase of a rear left corner portion of a power unit and crosses a main frame by being gradually bent in a lateral direction, a distal end portion and a cap portion of the engine oil supply pipe being positioned at the outside of the main frame, and a maintenance lid for allowing the maintenance of the oil level gauge and the engine oil supply pipe, said maintenance lid being formed in the inner cover, and the inner cover being detachably mounted on the vehicle body frame, said maintenance lid providing access to said oil level gauge and said oil supply pipe without detaching the inner cover.