Piolax, Inc.

Ryo Nishino

Hirozou Uejou

Yoshie Sato

Atsushi Ohshiro

A connector includes a housing having a connecting portion, an insertion portion, and slits, and a retainer having arms, and engaging portions. The engaging portions are engaged with a flange portion of a first pipe member so as to retain the first pipe member. An inclinatory contact portion is provided between inner circumferential surfaces of the slits and outer surfaces of the, such that the pair of arms are urged in directions of approaching each other when a force to pull out the first pipe member from the insertion portion is exerted.

Connector

In a fuel vapor pipe structure including a plurality of cut valves for passing or cutting a fuel vapor at inside of a fuel tank, a pipe joint connected to the cut valves for communicating the fuel vapor to a canister, and a resin tube for connecting the cut valve and the pipe joint, the resin tube is bent to pipe by making a length of the resin tube longer than a length of connecting connection tube portions of the cut valve and connection tube portions of the pipe joint and arranging the connection tube portion of the cut valve to shift from a straight line of connecting a center of the cut valve and a center of the pipe joint by a predetermined angle in a horizontal direction.

Fuel vapor pipe structure of fuel tank

Nylon 6 having viscosity number within a range of 170-340 in a measurement of a 98% concentrated sulfuric acid solution at 25&deg; C. and a plasticizer are mixed in advance, and then the mixture is mixed with Nylon 66 having viscosity number within a range of 240-370 in the measurement, thus a resin composite is prepared. Then, the resin composite is formed into a tube by extrusion molding. The resin tube thus obtained is used as a resin tube for automotive piping, such as vapor fuel piping to be incorporated into a fuel tank or as oil piping to be incorporated into an engine room.

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Yokohama, Japan

Ryo Nishino