TANK CAP

摘要

A tank cap, comprising a cap body (20) fitted to a filler tube, a cap shell (22) connected to the upper part of the cap body, and a packing (23) installed on the cap body (20) and fitted to the filler tube. (I) In on type of the tank cap, a fuel tank, the cap shell, and the packing (23) are formed conductive, and an elastic contact piece (38) in slidable contact with the inner peripheral surface of the cap shell (22) is projectedly installed on the packing (23). (II) In the other type of the tank cap, a ratchet mechanism (35) is interposed between the cap shell (22) and the cap body (20) to connect them to each other and so that a cap knob (19) can be axially moved relative to the cap body (20) between a pressing releasing position and a pressing position, and an engagement means (40, 41) is installed to directly couple the cap knob (19) to the cap body (20) in the rotating direction when the cap knob (19) is moved to the pressing position. Thus, static electricity charged on a worker can be released to the fuel tank by a simple structure.