Fuel filler cap
AssigneeAsteer Co., Ltd.
InventorsHiromitsu Yoshida, Takami Ono
Life of this patent
Estimating the term…
Abstract
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.
Claims7
A fuel filler cap comprising:
- an inner cap of a substantially cylindrical member;
- and an outer cap of a cover member mounted on said inner cap:
- wherein the outer cap includes an upper face portion having a circular shape, a skirt portion integrally extending downward from an outer circumference of the upper face portion, and a plurality of a wedge-shaped projection having a triangular section formed circumferentially intermittently on an inner face of the skirt portion;
- wherein a pressing plate is a member having a circular shape, as viewed in a top plan, and having a smaller diameter than the internal diameter of the skirt portion;
- wherein the inner cap includes a supporting plate having a circular shape, as viewed in a top plan, and having an annular slant formed radially downward by chamfering a peripheral edge of an upper face thereof, a seal ring fitted between a lower face of the supporting plate and an outer face of an inner cap body, and an annular groove defined by a lower face of the pressing plate laid over the supporting plate and by the annular slant of the supporting plate and to thereby form into a sectional shape corresponding to a sectional shape of the wedge-shaped projection;
- wherein the outer cap and the pressing plate are provided with a cap engagement means for engaging in a closing direction of the fuel filler cap;
- and wherein the pressing plate and the supporting plate are provided with a plate engagement means for turning integrally in opening/closing direction of the fuel filler cap and for releasing an engaged state of the pressing plate with the supporting plate when a releasing load is applied upward to the pressing plate.
Dependencies are inferred from the claim text.