SE9000334L - PROCEDURES FOR PREPARING A COVERAGE FOR A GAS CUSHION UNIT - Google Patents

PROCEDURES FOR PREPARING A COVERAGE FOR A GAS CUSHION UNIT

Info

Publication number
SE9000334L
SE9000334L SE9000334A SE9000334A SE9000334L SE 9000334 L SE9000334 L SE 9000334L SE 9000334 A SE9000334 A SE 9000334A SE 9000334 A SE9000334 A SE 9000334A SE 9000334 L SE9000334 L SE 9000334L
Authority
SE
Sweden
Prior art keywords
tear
foil
open line
region
foam
Prior art date
Application number
SE9000334A
Other languages
Swedish (sv)
Other versions
SE469121B (en
SE9000334D0 (en
Inventor
M Mueller
Original Assignee
Daimler Benz Ag
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 Daimler Benz Ag filed Critical Daimler Benz Ag
Publication of SE9000334D0 publication Critical patent/SE9000334D0/en
Publication of SE9000334L publication Critical patent/SE9000334L/en
Publication of SE469121B publication Critical patent/SE469121B/en

Links

Classifications

    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B29C44/146—Shaping the lining before foaming
    • 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
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • 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

Abstract

A cover equipped with a tear-open line and intended for an airbag unit in a motor vehicle, the cover comprising a foil (2) backed with foam (6) is produced by a) deep drawing a heated foil 2 continuous in the region of the intended tear-open line in such a way that a channel 3 drawn-in in relation to the adjoining face is formed in the region of the tear-pen line; b) making a reduction in wall thickness of the foil, which defines the tear-open line, on the channel bottom 4 by high- frequency embossing; and c) introducing the foil 2 into a mould and foam-backing the foil, the foam backing being produced with a smaller wall thickness in the region of the tear-open line than in other regions.
SE9000334A 1989-02-18 1990-01-31 PROCEDURES FOR PREPARING A COVERAGE FOR A GAS CUSHION UNIT SE469121B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3904977A DE3904977C1 (en) 1989-02-18 1989-02-18

Publications (3)

Publication Number Publication Date
SE9000334D0 SE9000334D0 (en) 1990-01-31
SE9000334L true SE9000334L (en) 1990-08-19
SE469121B SE469121B (en) 1993-05-17

Family

ID=6374390

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000334A SE469121B (en) 1989-02-18 1990-01-31 PROCEDURES FOR PREPARING A COVERAGE FOR A GAS CUSHION UNIT

Country Status (6)

Country Link
JP (1) JPH0645184B2 (en)
DE (1) DE3904977C1 (en)
FR (1) FR2643306A1 (en)
GB (1) GB2228714B (en)
IT (1) IT1239593B (en)
SE (1) SE469121B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03254919A (en) * 1990-03-06 1991-11-13 Takata Kk Manufacture of module cover of air bag
WO1992014632A1 (en) * 1991-02-13 1992-09-03 Allied-Signal Inc. Air bag door with unzipping seam
JPH0544714U (en) * 1991-08-09 1993-06-15 大同化成工業株式会社 Casing structure for inflatable occupant restraint system
CA2100286A1 (en) * 1992-08-13 1994-02-14 James Carter Hidden door for an air bag restraint system
DE4411283C1 (en) * 1994-03-31 1995-05-24 Daimler Benz Ag Method for mfr. of outer foil for vehicle airbag
US6001295A (en) * 1995-03-31 1999-12-14 Toyoda Gosei Co., Ltd Manufacturing method of an air bag cover
DE19516230C2 (en) * 1995-05-03 1999-04-01 Eldra Kunststofftechnik Gmbh Airbag cover and process for its manufacture
US5698283A (en) * 1995-06-21 1997-12-16 Toyoda Gosei Co., Ltd. Air bag cover and manufacturing method for same
JPH09156445A (en) * 1995-12-12 1997-06-17 Toyoda Gosei Co Ltd Air bag cover
DE19636428B4 (en) * 1996-09-07 2004-06-17 Jenoptik Ag Vehicle interior trim part with integrated airbag cover
DE19648138A1 (en) * 1996-11-21 1998-05-28 Opel Adam Ag Airbag cover
DE19653797A1 (en) * 1996-12-21 1998-06-25 Mst Automotive Gmbh Cover for an airbag module
DE10051836A1 (en) * 2000-10-19 2002-04-25 Bayerische Motoren Werke Ag Manufacturing process for a vehicle interior part with an airbag tear seam
DE10164528A1 (en) * 2001-12-18 2003-07-10 Jenoptik Automatisierungstech Process for making a tear seam in films and thin molded parts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053565A1 (en) * 1970-10-31 1972-05-04 Volkswagenwerk Ag, 3180 Wolfsburg Safety device
JPS5213701Y2 (en) * 1973-12-03 1977-03-28
JPS5243233A (en) * 1975-09-30 1977-04-05 Nissan Motor Co Ltd Cushion cover for air cushion device
CH628564A5 (en) * 1978-03-31 1982-03-15 Hoffmann Ag Geb Method for applying a predetermined breaking point in the form of a groove which weakens the cross-section to a sealing diaphragm intended for use in a can
DE3315535A1 (en) * 1983-04-29 1984-03-22 Daimler-Benz Ag, 7000 Stuttgart Cover for an inflatable gas bag
DE8713154U1 (en) * 1987-09-30 1987-11-12 Trw Repa Gmbh, 7077 Alfdorf, De
JPH01122753A (en) * 1987-11-05 1989-05-16 Sekisui Chem Co Ltd Air-bag storage casing
JPH0694266B2 (en) * 1989-02-20 1994-11-24 タカタ株式会社 Airbag storage cover

Also Published As

Publication number Publication date
IT1239593B (en) 1993-11-10
IT9047635A0 (en) 1990-02-15
GB9002146D0 (en) 1990-03-28
JPH0645184B2 (en) 1994-06-15
FR2643306B1 (en) 1994-08-19
SE469121B (en) 1993-05-17
SE9000334D0 (en) 1990-01-31
DE3904977C1 (en) 1990-01-18
GB2228714A (en) 1990-09-05
GB2228714B (en) 1992-09-16
IT9047635A1 (en) 1990-08-19
FR2643306A1 (en) 1990-08-24
JPH02248238A (en) 1990-10-04

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