WO2003013913A1 - Procede de pliage et d'emballage dans une housse d'un sac gonflable d'un airbag rideau - Google Patents

Procede de pliage et d'emballage dans une housse d'un sac gonflable d'un airbag rideau Download PDF

Info

Publication number
WO2003013913A1
WO2003013913A1 PCT/ES2001/000320 ES0100320W WO03013913A1 WO 2003013913 A1 WO2003013913 A1 WO 2003013913A1 ES 0100320 W ES0100320 W ES 0100320W WO 03013913 A1 WO03013913 A1 WO 03013913A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
folding
curtain airbag
folded
wrapping
Prior art date
Application number
PCT/ES2001/000320
Other languages
English (en)
Spanish (es)
Inventor
Manuel PEÑA MORADILLOS
Original Assignee
Dalphi Metal España, S.A.
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 Dalphi Metal España, S.A. filed Critical Dalphi Metal España, S.A.
Priority to PCT/ES2001/000320 priority Critical patent/WO2003013913A1/fr
Publication of WO2003013913A1 publication Critical patent/WO2003013913A1/fr

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
    • B60R21/23—Inflatable members
    • B60R21/237—Inflatable members characterised by the way they are folded
    • 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
    • B60R21/23—Inflatable members
    • B60R21/237—Inflatable members characterised by the way they are folded
    • B60R2021/2375—Folding devices
    • 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
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge

Definitions

  • the present invention relates to a method for folding and wrapping an inflatable bag of a curtain airbag.
  • curtain airbags thus complement the airbags oriented towards protection against frontal impacts such as those located on the steering wheel and on the front panel, opposite, respectively, of the driver and the front passenger.
  • the curtain airbags are fixed to the roof of the vehicle and have a bag that, when a side impact is detected, receives gas from a generator at one end that allows it to quickly inflate to fulfill its function.
  • a generator at one end that allows it to quickly inflate to fulfill its function.
  • curtain airbags with bags configured differently and with different vehicle fastening systems are known.
  • WO 96/26097 describes a compartmentalized sack in various cells so that cylindrical tubes are formed in the deployment.
  • WO 99/10207 describes a curtain airbag that includes a special zone for gas transfer between several compartments that inflate at different time points.
  • EP 0 900 704 A2 describes a compartmentalized curtain airbag in inflatable and non-inflatable areas.
  • EP 0 978 421 Al describes a curtain airbag with several chambers and with means to ensure that the lower edge of the airbag has the appropriate tension to protect the user.
  • the present invention relates to a method of folding and wrapping an inflatable bag of a curtain airbag.
  • the procedure is applicable to any type of sack of a curtain airbag that must be fixed to the vehicle by its upper part by appropriate means and that is structured so that it requires an accordion-shaped fold.
  • the bag is folded in an accordion shape using a multi-stage cam device.
  • the bag is folded, starting at the bottom, alternatively applying the vertical slats of cam devices located above and below the bag.
  • the folded part of the bag is kept in that state between the slats of the devices of cams and a retention stop that moves as the folded portion increases.
  • the folded bag is compressed until reaching the necessary dimension for its sheathing.
  • the folded bag is inserted into a sheath, located in a position aligned with the folded bag, in a coiled arrangement and fixed to one of its ends, simultaneously dragging the bag through the inside of the sleeve and the free end of is.
  • the final result of the procedure is therefore a folded bag wrapped (except in its upper part) in a sheath of a lightweight plastic material.
  • An advantage of the process is that it can be carried out by mechanical means. Another advantage is that although the bag is not uniform as a result of having a compartmentalized structure, the folds are substantially straight.
  • Figure 1 shows a schematic plan view of a sack of an unfolded curtain airbag.
  • Figure 2 shows a schematic side view of an inflated curtain airbag.
  • Figure 3a is a schematic perspective view of the airbag cover.
  • Figures 3b and 3c are schematic views of the curtain airbag sack within the perspective and profile sheath, respectively.
  • Figure 4 shows a schematic plan view of a device for folding and wrapping the sack of a curtain airbag according to the method object of the present invention.
  • Figures 5a to 5g schematically show the folding procedure of the sack of a curtain airbag by side views by the Y-Y 'axis of the state of the device shown in Figure 2 in its most significant stages.
  • Figures 6a to 6e show schematically the procedure of sheathing the sack of a curtain airbag by means of plan views of the state of the device used in its most significant stages.
  • a curtain airbag is formed by a sack 2 that has an elongated rectangular shape in an unfolded state.
  • the upper part 22 is fixed to the roof of the vehicle and is therefore not completely straight as the lower part 21.
  • the curtain airbag is attached to the roof of the vehicle by appropriate means applied to the holes 20 located in the upper part 22 inside projections 25.
  • a generator 28 provides gas that produces the inflation of the bag creating a means of protection of, especially, the heads of the occupants of the vehicle.
  • this type of airbag there is usually an upper duct 23 that receives the gas and distributes it, where appropriate, to the different compartments of the bag.
  • Figure 3a shows the cover 8 of the bag with holes 26 in its upper part to allow the projections 25 of the upper part of the bag that carry the holes 20 to which appropriate means for fixing the airbag to the ceiling of the roof of the bag will be applied. vehicle.
  • the curtain airbag referred to in the present invention can be seen with its accordion-folded sack 2 inside a sheath 8 which, although for simplicity is represented in rectilinear tubular form as if constituted by a rigid material, it is a cover of a flexible material as will be well understood by the person skilled in the art.
  • Said device consists of the following elements:
  • a table 1 to place the bag 2 on top of it and perform the various folding and wrapping operations.
  • a funnel 3 in which the cover 8 is arranged which will contain the bag 2 after folding.
  • a retaining block 4 which has the function of keeping the bag 2 folded, preventing it from unfolding towards the other side and which also serves to finally compress it so that it can pass through the funnel 3.
  • Tweezers 5 which, once folded the bag 2, they take it, through the funnel 3 together with the end of the cover 8, to pull it leaving it thus inside the cover 8.
  • a clamping device 9 that keeps one end of the cover 8 fixed to the funnel when the clamps 5 pull the other end of the cover 8 and the bag 2.
  • the initial state is shown in Figure 5a corresponding to Figure 4: the operator 15 proceeds to place the sack 2 on the table 1 and places the sheath 8 on the "neck" of the funnel 3. Once the sheath is located 8, the clamping device 9 fixes the inner end of the funnel 3. On the other hand, the guide rods 6 are introduced into the fixing holes 20 of the bag 2 to keep it stretched.
  • Figure 5f shows the withdrawal of the guide rods 6 and the continuation of the folding, the folded bag 2 accumulating between the cam devices 7 and the retention block 4, which continues to move to prevent the deployment of the bag.
  • Figure 5g shows the end of the folding in which the retaining block 4 moves towards the cam devices 7 by slightly compressing the folded bag 2.
  • Figure 6a shows the folded bag 2, the cover 8 in the funnel 3 and the clamps 5 in their initial position at the right end of the table 1.
  • Figure 6e shows the bag 2 folded and inserted into the cover 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

L'objet de l'invention est un procédé consistant à plier et à emballer un sac gonflable d'un airbag rideau, ce procédé pouvant être effectué par des moyens mécaniques. Dans une première étape, on plie le sac en forme d'accordéon, en lui appliquant alternativement les lames verticales de dispositifs à cames, et en maintenant la partie pliée entre les lames des dispositifs à cames et une butée de retenue. Dans une seconde étape, le sac plié est comprimé jusqu'à ce qu'il ait les dimensions adéquates pour le mettre dans une housse. Dans une troisième étape, on introduit le sac plié dans la housse, laquelle est alignée avec le sac plié, enroulée et fixée à l'une de ses extrémités. Le sac est entraîné simultanément vers l'intérieur de la housse et l'extrémité libre de celle-ci.
PCT/ES2001/000320 2001-08-10 2001-08-10 Procede de pliage et d'emballage dans une housse d'un sac gonflable d'un airbag rideau WO2003013913A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2001/000320 WO2003013913A1 (fr) 2001-08-10 2001-08-10 Procede de pliage et d'emballage dans une housse d'un sac gonflable d'un airbag rideau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2001/000320 WO2003013913A1 (fr) 2001-08-10 2001-08-10 Procede de pliage et d'emballage dans une housse d'un sac gonflable d'un airbag rideau

Publications (1)

Publication Number Publication Date
WO2003013913A1 true WO2003013913A1 (fr) 2003-02-20

Family

ID=8244370

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2001/000320 WO2003013913A1 (fr) 2001-08-10 2001-08-10 Procede de pliage et d'emballage dans une housse d'un sac gonflable d'un airbag rideau

Country Status (1)

Country Link
WO (1) WO2003013913A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004048158A2 (fr) * 2002-11-26 2004-06-10 Berger Gmbh & Co. Holding Kg Procede et dispositif d'insertion d'un coussin gonflable de securite dans une enveloppe
WO2004094198A1 (fr) * 2003-04-24 2004-11-04 Autoliv Development Ab Ameliorations apportes a un procede d'emballage de sacs gonflables
EP2174844A1 (fr) * 2008-10-08 2010-04-14 TRW Automotive GmbH Procédé et dispositif pour disposer un airbag dans une gaine protective
CN104608733A (zh) * 2015-02-02 2015-05-13 上海东方久乐汽车安全气囊有限公司 一种帘式气囊包裹布套装装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5669204A (en) * 1995-09-18 1997-09-23 Automated Solutions, Inc. Bag folding system
US5746690A (en) * 1996-06-28 1998-05-05 Omega Automation, Inc. Method and apparatus for folding an inflatable cushion
US5775733A (en) * 1997-05-06 1998-07-07 Autoliv Asp, Inc. Airbag cushion folding process
WO1999020492A1 (fr) * 1997-10-17 1999-04-29 Trw Occupant Restraint Systems Gmbh & Co. Kg Dispositif pour plier un sac d'air gonflable
WO1999026813A1 (fr) * 1997-11-21 1999-06-03 Trw Occupant Restraint Systems Gmbh & Co. Kg Procede pour plier un sac gonflable pour un systeme de retenue des occupants d'un vehicule et dispositif approprie pour plier un sac gonflable de ce type

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5669204A (en) * 1995-09-18 1997-09-23 Automated Solutions, Inc. Bag folding system
US5746690A (en) * 1996-06-28 1998-05-05 Omega Automation, Inc. Method and apparatus for folding an inflatable cushion
US5775733A (en) * 1997-05-06 1998-07-07 Autoliv Asp, Inc. Airbag cushion folding process
WO1999020492A1 (fr) * 1997-10-17 1999-04-29 Trw Occupant Restraint Systems Gmbh & Co. Kg Dispositif pour plier un sac d'air gonflable
WO1999026813A1 (fr) * 1997-11-21 1999-06-03 Trw Occupant Restraint Systems Gmbh & Co. Kg Procede pour plier un sac gonflable pour un systeme de retenue des occupants d'un vehicule et dispositif approprie pour plier un sac gonflable de ce type

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004048158A2 (fr) * 2002-11-26 2004-06-10 Berger Gmbh & Co. Holding Kg Procede et dispositif d'insertion d'un coussin gonflable de securite dans une enveloppe
WO2004048158A3 (fr) * 2002-11-26 2004-07-22 Berger Seiba Technotex Gmbh & Procede et dispositif d'insertion d'un coussin gonflable de securite dans une enveloppe
WO2004094198A1 (fr) * 2003-04-24 2004-11-04 Autoliv Development Ab Ameliorations apportes a un procede d'emballage de sacs gonflables
EP2174844A1 (fr) * 2008-10-08 2010-04-14 TRW Automotive GmbH Procédé et dispositif pour disposer un airbag dans une gaine protective
CN104608733A (zh) * 2015-02-02 2015-05-13 上海东方久乐汽车安全气囊有限公司 一种帘式气囊包裹布套装装置

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