| 摘要 |
In a fuel tank filler cap, a pair of semicircular shell members surround and overlie the upper end of a threaded body member. A torque limiting coupling is provided between the shell members and the body member through a plurality of fingers, formed as part of the body member, which are biased outwardly to engage a serrated circular track formed by the shell members. A pair of latch members are disposed in arcuate guideways also formed by the shell members and are biased to extend under a flange on the fuel tank filler neck, thus preventing unauthorized removal of the filler cap. A cam driven by a lockable member pulls the latch members out from under the filler neck flange to permit removal of the cap. |
