| 摘要 |
This invention provides a fuel filler cap that can release an outer cap from an inner cap without influences of direction of the external force when it applied. The fuel filler cap 1 comprises the outer cap 11 constructed by an upper face portion 112 , a skirt portion 113 extending from the outer circumference of the upper face portion 112 and a plurality of wedge-shaped projection 111 formed on the inner face of the skirt portion 113 ; the pressing plate 15 ; and the inner cap 13 constructed by a supporting plate 14 having an annular slant 142 , a seal ring 12 and annular groove 146 defined by the lower face of the pressing plate 15 laid over the supporting plate 14 and by the annular slant 142.
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