To provide a fuel filler tube including a screw thread having an excellent catching state of a screw by reducing decrement of a board thickness, when forming the screw thread.SOLUTION: There is provided a fuel filler tube 5 including a screw thread 51, in which the screw thread is a projection having a shape formed by denting the fuel filler tube to the inside of the fuel filler tube, as a view from the outside of the fuel filler tube, and a cross section of the projection has such a shape that its apex is shifted to a shorter direction from a midship part of the projection. The fuel filler tube further includes an elliptical convex part 52, in which the convex part has a shape formed by denting the fuel filler tube to the inside of the fuel filler tube, as a view from the outside of the fuel filler tube.SELECTED DRAWING: Figure 1
【課題】螺子山を形成する際の板厚の減少率を低減し、螺子の掛かり具合も良好な螺子山を備える燃料給油管を提供する。【解決手段】螺子山51を備える燃料給油管5であり、螺子山は、燃料給油管の外側から見たときに燃料給油管の内側に対して燃料給油管を凹ませた形状を有する突条であり、突条の断面は、その頂部が突条の中央部から短手方向に対してずれた形状であり、楕円状の凸部52をさらに備えており、凸部は、燃料給油管の外側から見たときに燃料給油管の内側に対して燃料給油管を凹ませた形状である燃料給油管である。【選択図】図1
FUEL FILLER TUBE
燃料給油管
2019-04-11
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 |