Patent ID: 11919384
Assignee: HONDA MOTOR CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. A manufacturing method for manufacturing the resin filler tube according to claim 1, the manufacturing method comprising:
extruding a tubular material having a plurality of layers by an extruder; and
forming the resin filler tube by bringing the tubular material into close contact with an inner face formed by a plurality of split molds while sequentially moving each of the plurality of split molds in a direction in which the tubular material is extruded, such that the resin filler tube has an outer face corresponding to the inner face, wherein
the tubular body has a predetermined thickness by setting moving speeds of the split molds to a first speed when the tubular material is brought into close contact with a portion of the split molds for forming the tubular body, in the forming of the resin filler tube,
the flange has the thickness greater than the thickness of the tubular body by setting moving speeds of the split molds to a second speed lower than the first speed when the tubular material is brought into close contact with a portion of the split molds for forming the flange, in the forming of the resin filler tube; and
a thickness of the base-end-side reverse tapered portion is increased by reducing moving speeds of the split molds from the first speed to the second speed when the tubular material is brought into close contact with a portion of the split molds for forming the base-end-side reverse tapered portion, in the forming of the resin filler tube.