Patent ID: 7896405

Claim:
A connector for connecting a fuel tank with a delivery pipe, comprising: a base member having a flange and a passage, the flange having a size to cover an opening formed in the fuel tank, the passage being adapted to communicate with the delivery pipe; an outer melt-bonding projection integrally formed with at least a projecting end of the flange of the base member; a cylindrical member adapted to house a float, the cylindrical member being unitarily formed with the flange of the base member; an inner melt-bonding member formed in a ring shape and having a size to house the opening formed in the fuel tank, the inner melt-bonding member having an upper side unified to a lower surface of the flange of the base member and configured to have an outer lateral side unified to an inner lateral side of a projecting end of the outer melt-bonding projection; the outer melt-bonding projection being formed of a first synthetic resin, which is melt-bondable to an outer layer of the fuel tank; the base member being formed of an alloy of the first synthetic resin and a second synthetic resin difficult to pass a gas produced from fuel therethrough, or the second synthetic resin difficult to pass a gas produced from fuel therethrough and adaptable to the first synthetic resin; and the inner melt-bonding member being formed of the first synthetic resin; wherein the connector is configured to be molded by insert-molding with the inner melt-bonding member used as an insert; and the second synthetic resin has a higher melting point than the first synthetic resin.