Air intake hose for vehicle and production method thereof

Patent metadata

Field	Value
Publication number	US-9868246-B2
Application number	US-201414285284-A
Country	US
Kind code	B2
Filing date	May 22, 2014
Priority date	Dec 7, 2011
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

An air intake hose for a vehicle may include a blow molding portion formed in a hollow hose shape by blow molding, an injection molding portion formed in a hollow hose shape by injection molding, and a coupling portion formed at one end of the blow molding portion, wherein the blow molding portion and the injection molding portion may be coupled with each other by injecting a material forming the injection molding portion into an injection mold in a state in which the coupling portion may be inserted in the injection mold.

First claim

What is claimed is:

1. A method of manufacturing an air intake hose for a vehicle, the air intake hose having a blow molding portion formed in a hollow hose shape by blow molding and an injection molding portion formed in a hollow hose shape by injection molding, the method comprising:
preparing materials of the blow and injection molding portions and an injection mold used for the injection molding;
forming the blow molding portion;
inserting a part of the blow molding portion into the injection mold through one end of the injection mold;
injecting the material of the injection molding portion into the injection mold through the other end of the injection mold; and
separating and removing the injection mold,
wherein a plurality of protrusions are protruded from a coupled surface of the blow molding portion coupled with the material of the injection molding portion,
wherein a width of the protrusions is gradually widened along a protruding direction, and
wherein the material of the injection molding portion is injected between the plurality of the protrusions so as to obtain a strong coupling force.

2. The method of claim 1 , wherein the blow molding portion inserted into the injection mold is coupled with the material of the injection molding portion injected into the injection mold such that the blow molding portion and the injection molding portion are integrally formed with each other.

3. The method of claim 1 , wherein thermoplastic materials having the same polarity are used for forming the blow molding portion and the injection molding portion.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Jang Young Hak
• Jun Je Hui
• Shin Jinwoong

Classifications

• B29C45/14598

  Coating tubular articles · CPC title

• B29L2023/22

  Tubes or pipes, i.e. rigid (bent tubes not for use as pipe couplings B29L2023/004) · CPC title

• B29C69/00

  Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore {(B29C48/001 takes precedence)} · CPC title

• B29L2031/30

  Vehicles, e.g. ships or aircraft, or body parts thereof {(vanes or blades B29L2031/08, air bags B29L2022/027)} · CPC title

• F02M35/1036

  by welding, bonding or the like (welding plastic materials together in general B29C65/02) · CPC title