To provide a resin filler tube which can be made equal to or larger than an inner diameter of a cylindrical body whose inner diameter is a reference in the vicinity of a flange.SOLUTION: A resin filler tube 30 includes: a tubular body 32a; a flange 32b which is formed into a diameter greater than an outer diameter Doa of the tubular body 32a, formed into a thickness greater than a thickness of the tubular body 32a, has a predetermined width in an axial direction, and has a first axial end face 32b1 forming a weld surface to be welded to an outer circumferential edge of an opening hole 21 of a fuel tank 20; and a base-end-side tapered portion 32c which connects an end of the tubular body 32a on a side of the fuel tank 20 and an end of an outer circumferential surface 32b2 of the flange 32b on a side opposite to the fuel tank 20, and which is formed into a tapered shape so as to increase a diameter toward a side of the flange 32b. An inner diameter of the base-end-side tapered portion 32c is formed into a diameter equal to or larger than an inner diameter of the tubular body 32a over an entire range in the axial direction.SELECTED DRAWING: Figure 3
【課題】フランジの近傍において、内径が基準となる筒状本体の内径以上にすることができる樹脂製フィラーチューブを提供する。【解決手段】樹脂製フィラーチューブ30は、筒状本体32aと、筒状本体32aの外径Doaよりも大径に形成され、筒状本体32aの厚みよりも厚く形成され、軸方向に所定幅を有し、軸方向の第一端面32b1が燃料タンク20の開口穴21の外側周縁との溶着面を構成するフランジ32bと、筒状本体32aにおける燃料タンク20側の端とフランジ32bの外周面32b2における燃料タンク20とは反対側の端とを接続し、フランジ32b側に向かって拡径するテーパ状に形成される基端側テーパ部32cとを備える。基端側テーパ部32cの内径は、軸方向の全範囲において、筒状本体32aの内径以上に形成されている。【選択図】図3
RESIN FILLER TUBE AND MANUFACTURING METHOD FOR THE SAME
樹脂製フィラーチューブ及びその製造方法
2021-07-01
Patent
Electronic Resource
Japanese
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 / F16L PIPES , Rohre |