OPEN-AND-CLOSE STRUCTURE FOR CAP AND CHARGING CONNECTOR

An open-and-close structure A for a cap includes a housing , a cap rotatably supported on the housing , and a biasing member configured to apply a biasing force near a rotation shaft of the cap , wherein open position-maintaining means configured to maintain the cap at an open position by a biasing force of the biasing member and reaction force application means configured to apply a reaction force in a closing direction by the biasing member to the cap in response to a further movement of the cap in an open direction from the open position are provided on at least one of a support portion that is a cap-side sliding contact portion or a sliding contact member that is a biasing member-side sliding contact portion.