Stiffener for insert molding and manufacturing method of crash pad using the same

Patent metadata

Field	Value
Publication number	US-2016107346-A1
Application number	US-201514817948-A
Country	US
Kind code	A1
Filing date	Aug 4, 2015
Priority date	Oct 15, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

A stiffener for insert-molding including a stiffening bar for insert-molding and insert setting members provided on an outer periphery of the stiffening bar at a predetermined interval. Durability of a crash pad can be significantly improved by insert-molding the stiffener during the manufacturing process of the crash pad. Manufacturing the crash pad includes setting a skin on a lower mold, setting the stiffener that matches a skin corner at the skin corner while the skin is set on the lower mold, and injecting a foam liquid between the skin set on the lower mold and a core set on an upper mold while the stiffener is set at the skin corner.

First claim

What is claimed is:

1 . A stiffener for insert-molding, comprising:
a stiffening bar for insert-molding; and insert setting members provided on an outer periphery of the stiffening bar at a predetermined interval.

2 . The stiffener of claim 1 , wherein the stiffening bar is a steel bar deployed at a skin corner.

3 . The stiffener of claim 1 , wherein the insert setting members are polyurethane (PU) foam.

4 . The stiffener of claim 1 , wherein the insert setting members include at least one of acrylonitrile butadiene styrene (ABS) and polycarbonate (PC).

5 . The stiffener of claim 1 , wherein the insert setting members fit in the outer periphery of the stiffening bar.

6 . The stiffener of claim 1 , wherein the insert setting members are molded integrally with the outer periphery of the stiffening bar.

7 . A method of manufacturing a crash pad, comprising:
setting a skin on a lower mold; setting a stiffener that matches a skin corner at the skin corner while the skin is set on the lower mold; and injecting a foam liquid between the skin set on the lower mold and a core set on an upper mold while the stiffener is set at the skin corner.

8 . The method of claim 7 , wherein the stiffener comprises a stiffening bar and insert setting members provided on an outer periphery of the stiffening bar at a predetermined interval.

9 . The method of claim 8 , wherein the stiffening bar comprises a steel bar.

10 . The method of claim 8 , wherein the insert setting members comprise polyurethane (PU) foam.

11 . The method of claim 8 , wherein the insert setting members comprise at least one of acrylonitrile butadiene styrene (ABS) and polycarbonate (PC).

12 . The method of claim 8 , wherein the insert setting members fit on the outer periphery of the stiffening bar.

13 . The method of claim 8 , wherein the insert setting members are molded integrally with the outer periphery of the stiffening bar.

14 . The method of claim 8 , wherein the insert setting members are made of the same material as the foam liquid.

15 . The method of claim 9 , wherein the stiffener is the steel bar.

16 . The method of claim 15 , wherein a magnet is insert-molded at a peripheral portion of the skin corner of the lower mold.

Assignees

• Hyundai Mobis Co Ltd
• Mdb Mold Co Ltd

Inventors

• Kang Byung Young
• Jeon Young Suk

Classifications

• B29C44/1257

  Joining a preformed part and a lining, e.g. around the edges · CPC title

• B29C44/1266 Primary

  the preformed part being completely encapsulated, e.g. for packaging purposes or as reinforcement · CPC title

• B29C44/146

  Shaping the lining before foaming · CPC title

• B29K2255/02

  ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers · CPC title

• B29K2269/00

  Use of {PC, i.e.} polycarbonates {or derivatives thereof} as reinforcement · CPC title