Frame structure

Abstract

A frame structure of a straddle-type vehicle in which a vehicle body frame is used as an oil tank. The frame structure includes a head pipe located at a front portion of the vehicle body frame, a rear plate connecting left and right tank rails, at an upper rear side of the head pipe, a down frame having a tubular shape and extending downward from a lower rear side of the head pipe, a reinforcement connected to a rear surface of the down frame, below the rear plate, and an oil inlet attached to the rear plate and forming an oil injection port. An oil storage space is formed on inner sides of the down frame and the reinforcement. The oil inlet penetrates the rear plate and enters the storage space.

Dependencies are inferred from the claim text.