SE469121B - Foerfarande foer framstaellning av en oevertaeckning foer en gaskuddeenhet - Google Patents

Foerfarande foer framstaellning av en oevertaeckning foer en gaskuddeenhet

Info

Publication number
SE469121B
SE469121B SE9000334A SE9000334A SE469121B SE 469121 B SE469121 B SE 469121B SE 9000334 A SE9000334 A SE 9000334A SE 9000334 A SE9000334 A SE 9000334A SE 469121 B SE469121 B SE 469121B
Authority
SE
Sweden
Prior art keywords
tear line
foil
cover
foam
wall thickness
Prior art date
Application number
SE9000334A
Other languages
English (en)
Other versions
SE9000334L (sv
SE9000334D0 (sv
Inventor
M Mueller
W Henseler
E Katz
A Bossenmaier
D Hamm
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/sv
Publication of SE9000334L publication Critical patent/SE9000334L/sv
Publication of SE469121B publication Critical patent/SE469121B/sv

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Air Bags (AREA)
  • Molding Of Porous Articles (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Claims (1)

1. 469 m Uppfinningen beskrivs närmare nedan under hänvisning till bifogade ritning, på vilken fig 1 visar en perspektivvy av en övertäckning enligt uppfinningen och fig 2 i förstorad skala visar en sektion tagen längs linjen ll-ll i fig 1. Den folie 2, som bildar utsidan av en övertäckning 1, bearbetas i uppvärmt tillstånd medelst ett djupdragningsför- farande, t ex genom ett vakuumdragningsförfarande, på sådant sätt att en indragen ränna 3 bildas, som har en rännbotten 4. I denna botten A utförs nu genom högfrekvensprägling en minsk- ning 5 av väggtjockleken, som bildar rivlinjen. Därvid skall bredden och djupet av rännan 3 väljas på sådant sätt att tjock- leksminskningen 5 åtminstone för en ytlig betraktare icke blir iögonenfallande. Den djupdragna folien 2 införs sedan i en skumform och förses med en bakre skumbeläggning 6, som vid rivlinjen analogt med folien 2 likaså uppvisar ett område 7 med redu- cerad väggtjocklek. P a t e n t k r a v Förfarande för framställning av en med en rivlinje försedd övertäckning för en gaskuddeenhet i ett motorfordon, vilken övertäckning uppvisar en med skumbelagd baksida utförd folie, vars skumbeläggning vid rivlinjen är utformad med mindre väggtjocklek än övriga områden av övertäckningen, k ä n n e- t e c k n a d a v att den vid den planerade rivlinjen konti- nuerliga,uppvärmda folien (2) djupdras på sådant sätt, att i området för rivlinjen bildas en gentemot angränsande ytor indragen ränna (3), att i botten (4) av rännan utförs genom högfrekvensprägling en väggtjockleksminskning hos folien (Z), vilken bildar rivlinjen, och att folien på känt sätt placeras i en form och belägga med skum på baksidan. x!
SE9000334A 1989-02-18 1990-01-31 Foerfarande foer framstaellning av en oevertaeckning foer en gaskuddeenhet SE469121B (sv)

Applications Claiming Priority (1)

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

Publications (3)

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

Family

ID=6374390

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000334A SE469121B (sv) 1989-02-18 1990-01-31 Foerfarande foer framstaellning av en oevertaeckning foer en gaskuddeenhet

Country Status (6)

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

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO1992014632A1 (en) * 1991-02-13 1992-09-03 Allied-Signal Inc. Air bag door with unzipping seam
JPH0544714U (ja) * 1991-08-09 1993-06-15 大同化成工業株式会社 膨張式乗員拘束装置のケーシング構造
CA2100286A1 (en) * 1992-08-13 1994-02-14 James Carter Hidden door for an air bag restraint system
DE4411283C1 (de) * 1994-03-31 1995-05-24 Daimler Benz Ag Verfahren zur Herstellung einer dehnungselastischen, als Deckschicht einer Abdeckung für einen aufblasbaren Gassack von Fahrzeugen vorgesehenen Folie
US6001295A (en) * 1995-03-31 1999-12-14 Toyoda Gosei Co., Ltd Manufacturing method of an air bag cover
DE19516230C2 (de) * 1995-05-03 1999-04-01 Eldra Kunststofftechnik Gmbh Airbag-Abdeckung sowie Verfahren zu seiner Herstellung
EP0749872B1 (en) * 1995-06-21 2003-04-23 Toyoda Gosei Co., Ltd. Air bag cover and method of manufacturing the same
JPH09156445A (ja) * 1995-12-12 1997-06-17 Toyoda Gosei Co Ltd エアバッグカバー
DE19636428B4 (de) * 1996-09-07 2004-06-17 Jenoptik Ag Fahrzeuginnenverkleidungsteil mit integrierter Airbag-Abdeckung
DE19648138A1 (de) * 1996-11-21 1998-05-28 Opel Adam Ag Luftsackabdeckung
DE19653797A1 (de) * 1996-12-21 1998-06-25 Mst Automotive Gmbh Abdeckung für ein Airbag-Modul
DE10051836A1 (de) * 2000-10-19 2002-04-25 Bayerische Motoren Werke Ag Herstellverfahren für ein Fahrzeug-Innenausstattungsteil mit einer Airbag-Aufreißnaht
DE10164528A1 (de) * 2001-12-18 2003-07-10 Jenoptik Automatisierungstech Verfahren zum Einbringen einer Reißnaht in Folien und dünne Formteile

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053565A1 (de) * 1970-10-31 1972-05-04 Volkswagenwerk Ag, 3180 Wolfsburg Sicherheitsvorrichtung
JPS5213701Y2 (sv) * 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 (de) * 1983-04-29 1984-03-22 Daimler-Benz Ag, 7000 Stuttgart Abdeckung fuer ein aufblasbares gaskissen
DE8713154U1 (de) * 1987-09-30 1987-11-12 TRW Repa GmbH, 7077 Alfdorf Abdeckung einer fahrerseitigen Gassack-Aufprallschutzeinrichtung in Kraftfahrzeugen
JPH01122753A (ja) * 1987-11-05 1989-05-16 Sekisui Chem Co Ltd エアバッグ収納ケース
JPH0694266B2 (ja) * 1989-02-20 1994-11-24 タカタ株式会社 エアバッグ収納用カバー

Also Published As

Publication number Publication date
IT1239593B (it) 1993-11-10
SE9000334L (sv) 1990-08-19
DE3904977C1 (sv) 1990-01-18
GB2228714A (en) 1990-09-05
IT9047635A0 (it) 1990-02-15
JPH02248238A (ja) 1990-10-04
SE9000334D0 (sv) 1990-01-31
FR2643306B1 (sv) 1994-08-19
FR2643306A1 (fr) 1990-08-24
IT9047635A1 (it) 1990-08-19
GB9002146D0 (en) 1990-03-28
JPH0645184B2 (ja) 1994-06-15
GB2228714B (en) 1992-09-16

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