| 摘要 |
<P>PROBLEM TO BE SOLVED: To transmit a rotation of a cap knob directly to a cap body without utilizing a torque limiting function of a ratchet mechanism in case of rotating the cap knob while strongly pushing-in the cap knob to an oil supply port tube when mounting a tank cap in the oil supply port tube of a fuel tank. <P>SOLUTION: The cap knob 19 of the tank cap is connected to a cap body 20 so that the cap knob 19 is movable between a push position P and a push-releasing position N along the axial direction of the cap body 20. There are mounted between the cap knob 19 and the cap body 20 an urging means 20c urging the cap knob 19 to the direction of the push-releasing position N and engagement means 40 and 41 which directly connect the cap knob 19 and the cap body 20 in a rotational direction in accordance with the movement of the cap knob 19 to the push position P while resisting to the urging force of the urging means 20c. <P>COPYRIGHT: (C)2007,JPO&INPIT |
