Patent ID: 6305568
Filing Date: 2001-10-23
Classification: B60K

Abstract:
A resin fuel tank comprising:a tank main body constructed by laminating a resin inner shell and a resin outer shell via a fuel permeation preventing layer, said tank main body being opened with a tapered component attaching hole formed such as to enlarge toward the external surface of said tank main body; anda resin auxiliary component welded to an external surface of said tank main body in such a manner as to cover said component attaching hole, said auxiliary component comprising:a tapered boss portion formed such as to fit in said component attaching hole; anda fuel permeation preventing layer laminated such as to extend from an internal surface of said auxiliary component over an external surface of said boss portion,whereby said fuel permeation preventing layer on the external surface of said boss portion is tightly joined to said fuel permeation preventing layer of said tank main body which is exposed at said component attaching hole.