Patent ID: 7757880
Filing Date: 2010-07-20
Classification: B60K

Abstract:
1. A tank cap, comprising: a closer that opens and closes a tank opening with air-tight sealing, wherein the closer includes an outer tubular member and a valve chest forming-member formed on the outer tubular member to form a valve chest, the valve chest connecting a tank with atmosphere; and a pressure regulating valve that is received in the valve chest and opens and closes a valve flow path formed in the valve chest to regulate inner pressure of the tank, wherein the pressure regulating valve includes a valve plug that opens and closes the valve flow path, a spring that has an end pressing the valve plug in a closing direction, and a spring stopper mechanism that supports an other end of the spring, wherein the spring stopper mechanism includes a stopper support member that is formed on the outer tubular member, and a spring support member that is held by the stopper support member and supports the other end of the spring, wherein the spring support member includes a support body and a mating lock element integrally formed on the support body, the mating lock element being configured to be inserted in an axial direction of the closer against a pressing force of the spring by a predetermined distance to be not in contact with the stopper support member and then is rotated by a preset angle relative to the stopper support member at a position of the predetermined distance, so as to engage with the stopper support member, and being configured to be pressed against the stopper support member by the pressing force of the spring.