Patent ID: 7600650
Filing Date: 2009-10-13
Classification: B60K

Abstract:
1. A cap device that closes a tank opening and engages with an opening engagement element formed in a periphery of the tank opening, the cap device comprising: a closer that closes the tank opening wit air-tight sealing and has a cap engagement element that engages with the opening engagement element by rotation of the closer at a predetermined angle; a handle mechanism that is mounted on the closer in a rotatable manner and rotates the closer in either of a closing direction and an opening direction to close and open the tank opening wherein the handle mechanism includes a cover that surrounds an upper portion of the closer and a handle that is formed on the cover; and a torque mechanism having a torque plate that is located between the handle mechanism and the closer and selectively transmits a rotational torque in the closing direction and the opening direction to the closer, wherein the torque mechanism includes: an opening direction transmission mechanism having a guide mechanism that guides the torque engagement projection to reduce a lap of the engagement of the first engagement element with the torque engagement projection when the handle mechanism rotates in the opening direction, wherein the guide mechanism includes (i) a guide projection that is formed on an end of the torque arm, and (ii) a guide groove that is formed on a bottom face of the cover to guide the guide projection in response to rotational force applied to the handle mechanism so that the torque engagement projection is led in a direction away from the first engagement element, thereby reducing the lap.