EP0809581A1 - Protection unitaire composite pour airbag et procede pour la fabriquer - Google Patents

Protection unitaire composite pour airbag et procede pour la fabriquer

Info

Publication number
EP0809581A1
EP0809581A1 EP96905200A EP96905200A EP0809581A1 EP 0809581 A1 EP0809581 A1 EP 0809581A1 EP 96905200 A EP96905200 A EP 96905200A EP 96905200 A EP96905200 A EP 96905200A EP 0809581 A1 EP0809581 A1 EP 0809581A1
Authority
EP
European Patent Office
Prior art keywords
air bag
bag cover
outer layer
mold
contact surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96905200A
Other languages
German (de)
English (en)
Inventor
Darius J. Preisler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0809581A1 publication Critical patent/EP0809581A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0053—Moulding articles characterised by the shape of the surface, e.g. ribs, high polish
    • B29C37/0057—Moulding single grooves or ribs, e.g. tear lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3038—Air bag covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • B60R21/21656—Steering wheel covers or similar cup-shaped covers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Air Bags (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention décrit une protection unitaire composite pour airbag (20) comportant un corps (16) d'un seul tenant fait d'un élastomère thermoplastique et une couche extérieure (30) d'un seul tenant moulée dans un matériau thermoplastique compatible avec l'élastomère thermoplastique du corps, de sorte qu'une surface de contact inférieure (32) de la couche extérieure (30) est unie à une surface de contact avant (22) de la face avant par diffusion entre leurs surfaces de contact. Dans un procédé de la présente invention, la protection pour airbag obtenue est refroidie en deçà du point de ramollissement des deux plastiques, de sorte qu'un gradient de concentration moléculaire se forme à une interface entre les premier et second plastiques pour lier ces derniers par diffusion à l'intérieur d'un creux de moule séparé d'un creux de moule d'un autre moule utilisé pour mouler par injection soit le corps élastomère soit la couche extérieure.
EP96905200A 1995-02-14 1996-01-22 Protection unitaire composite pour airbag et procede pour la fabriquer Withdrawn EP0809581A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US38913595A 1995-02-14 1995-02-14
US389135 1995-02-14
PCT/US1996/000928 WO1996025308A1 (fr) 1995-02-14 1996-01-22 Protection unitaire composite pour airbag et procede pour la fabriquer

Publications (1)

Publication Number Publication Date
EP0809581A1 true EP0809581A1 (fr) 1997-12-03

Family

ID=23536974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96905200A Withdrawn EP0809581A1 (fr) 1995-02-14 1996-01-22 Protection unitaire composite pour airbag et procede pour la fabriquer

Country Status (4)

Country Link
EP (1) EP0809581A1 (fr)
AU (1) AU4901996A (fr)
CA (1) CA2212863A1 (fr)
WO (1) WO1996025308A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761940B1 (fr) * 1997-04-11 1999-06-04 Afe Plasturgie Couvercle frangible a deux couches pour coussin gonflable de vehicule automobile
DE10329380A1 (de) * 2003-06-30 2005-01-20 Kunststoff-Technik Scherer & Trier Gmbh & Co Kg Spritzgießverfahren zur Herstellung eines Gussteils

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246213A (en) * 1978-08-02 1981-01-20 Nissan Motor Company, Limited Method of producing a cover member for a safety air-cushion
JPH03254919A (ja) * 1990-03-06 1991-11-13 Takata Kk エアバッグのモジュールカバーの製造方法
JPH0428515A (ja) * 1990-05-24 1992-01-31 Takata Kk エアバッグ装置のモジュールカバーの成形方法
JPH0453717A (ja) * 1990-06-22 1992-02-21 Takata Kk エアバッグ装置のモジュールカバーの成形方法
JP3006069B2 (ja) * 1990-10-26 2000-02-07 タカタ株式会社 エアバッグ装置のモジュールカバー
JPH05193434A (ja) * 1991-06-03 1993-08-03 Taisei Plus Kk エアバッグ用カバー及びその製造方法
JPH07108540B2 (ja) * 1991-09-21 1995-11-22 日本プラスト株式会社 樹脂成形品の製造方法
JPH05293850A (ja) * 1992-04-03 1993-11-09 Takata Kk エアバッグ装置のモジュールカバーの製造方法
GB2270884B (en) * 1992-09-29 1995-11-22 Autoliv Dev Improvements in or relating to an air-bag cover
JP2972057B2 (ja) * 1993-06-18 1999-11-08 株式会社ブリヂストン エアバッグ用収納パッドおよびその製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9625308A1 *

Also Published As

Publication number Publication date
WO1996025308A1 (fr) 1996-08-22
AU4901996A (en) 1996-09-04
CA2212863A1 (fr) 1996-08-22

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