| 摘要 |
A fuel flap of plastic material for automobiles comprising an outer visible surface and an inner surface, first fastening means being formed at the inner surfac e for the attachment to a hinge arm, the hinge arm having second fastening means on th e side facing the fuel flap, the second fastening means co-acting with the first fastening means in order to attach the fuel flap to the hinge arm at a predetermined position, characterized in that the first fastening means include at least two approximately parallel fastening ribs, at least one of the ribs having two spaced holes an d the other has at least one hole, with the axes of the holes being parallel, the second fastening means include at least three projections having a cross-section complementar y to that of the holes in order to provide a positive fit of the projections in t he holes when the first and second fastening means cooperate in order to position the fuel flap to the hinge arm with. respect to two orthogonal directions, with the axes of t he projections being parallel so that upon assembly the holes can be aligned to the projection which upon a relative movement of fuel flap and hinge arm may engage each other in the plane of the axes, and a resilient portion being formed to the hinge arm which upon engagement of the projection in holes is temporarily deformed and after the engagement of the projections in the hole is somewhat deformed bac k and cooperates with a locking portion of the fuel flap so that the fuel flap is secured also with respect to a third direction which is orthogonal to the first and secon d direction. |
