A resin filler pipe is provided with: a cylindrical body (32a); a flange (32b) which has an outer diameter larger than the outer diameter (Doa) of the cylindrical body (32a), is formed thicker than the thickness of the cylindrical body (32a), has a predetermined width in the axial direction, and has a first end surface (32b1) in the axial direction constituting a welded surface welded to the outer peripheral edge of the opening hole (21) of the fuel tank (20); and a base end-side inverted tapered section (32c) that connects the fuel tank (20)-side end of the cylindrical body (32a) and the fuel tank (20)-opposite end of the outer peripheral surface (32b2) of the flange (32b), and that is formed in an inverted tapered shape that expands in diameter toward the flange (32b) side. The inner diameter of the base-end-side inverted-tapered portion (32c) is formed so as to be equal to or greater than the inner diameter (Dia) of the cylindrical body (32a) over the entire range in the axial direction.
树脂制加油管具备:筒状主体(32a);凸缘(32b),其形成为外径比筒状主体(32a)的外径(Doa)大,且形成为比筒状主体(32a)的厚度厚,在轴向上具有规定宽度,轴向上的第一端面(32b1)构成与燃料箱(20)的开口孔(21)的外侧周缘熔接的熔接面;以及基端侧倒锥形部(32c),其将筒状主体(32a)中的燃料箱(20)侧的端部和凸缘(32b)的外周面(32b2)中的与燃料箱(20)相反侧的端部连接,形成为朝向凸缘(32b)侧扩径的倒锥状。基端侧倒锥形部(32c)的内径在轴向上的整个范围内形成为筒状主体(32a)的内径(Dia)以上。
RESIN FILLER TUBE AND MANUFACTURING METHOD FOR THE SAME
树脂制加油管及其制造方法
2021-07-09
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand |