Patent attributes
A fueling device comprises a filler neck that is configured to form a fuel flow path, a cover member, and a restraint portion. An engagement projection provided as an engagement portion of the cover member is engaged with an engaged recess provided as an engaged portion of the filler neck, so that the cover member is mounted to the filler neck on an opening side of the fuel flow path. The restraint portion is configured to restrain the cover member including an engagement extension portion downstream of the engagement projection in the fuel flow path to an outer circumferential wall of the filler neck. This configuration suppresses expansion and deformation of the cover member and avoids separation of the cover member from the filler neck, while maintaining the mounting property of the cover member.
