Patent ID: 9746107
Date: 2017-08-29
CPC Classifications: B60H,F16L,F24F

Claim:
1. A resin duct, comprising: a first wall section and a second wall section welded via parting lines, wherein: a mean thickness of the entire duct is 1 mm or less, and the duct comprises projections formed by projecting the resin on inner surface sides of the duct on the parting lines; and wherein the duct includes an opening, and wherein the opening includes a connecting section to connect to an other member and a trumpet-shaped section having a diameter larger than the connecting section; wherein the connecting section is female-type and configured to receive the other member so that the other member is inserted into the opening and connected to the connecting section, and wherein the projections are formed at least on an inner surface side of the trumpet-shaped section.