WO2003072400A1 - Procedimiento y dispositivo para el montaje de un modulo de airbag lateral - Google Patents
Procedimiento y dispositivo para el montaje de un modulo de airbag lateral Download PDFInfo
- Publication number
- WO2003072400A1 WO2003072400A1 PCT/ES2002/000083 ES0200083W WO03072400A1 WO 2003072400 A1 WO2003072400 A1 WO 2003072400A1 ES 0200083 W ES0200083 W ES 0200083W WO 03072400 A1 WO03072400 A1 WO 03072400A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bag
- folding
- housing
- airbag module
- side airbag
- Prior art date
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
Definitions
- the present invention relates to a method and a device for mounting a side airbag module, consisting of a housing that has a folded gas bag inside and attached to a gas generator at one of its ends. More specifically, the invention relates to a side airbag intended to protect the thorax of the occupants of a vehicle.
- the first airbags offered by the technique to protect the occupants of motor vehicles were intended to retain them during frontal collisions. To this end, once the collision has been detected, the front airbag bag inflates quickly and retains the vehicle occupant, preventing it from coming into contact with the steering wheel and the instrument panel.
- airbags have been proposed placed on the vehicle door in which the inflation means produce an upward deployment so that the bag extends over the vehicle window, thereby preventing the occupant from colliding with elements of the door. and holding his head so he doesn't go out the window.
- the inflation means produce an upward deployment so that the bag extends over the vehicle window, thereby preventing the occupant from colliding with elements of the door. and holding his head so he doesn't go out the window.
- the invention relates to a new method of mounting side air bag modules in which the bag, oval or other rounded shapes, must be folded and inserted into a housing located on one of the edges of the bag where the gas generator is also located.
- the method comprises a first stage of folding the lateral parts of the bellows-shaped bag so that the width of the folded bag is slightly less than the width of the casing, a second stage of rolling it onto itself. starting from the opposite end of the casing and keeping the other end fixed, thereby producing a spiral-shaped winding and a third stage of introducing the rolled sack into the casing.
- folding is carried out so that the folded bag and the unfolded bag have the same axis of symmetry and that this coincides with the direction of deployment of the bag.
- the two sides of the bag are folded in a different way, so that, if desired, the winding is carried out in a different direction from the axis of symmetry of the bag. In this way, starting from the same starting material, They can mount side airbag modules intended to be located in different places of the vehicle and therefore must be deployed differently.
- the invention relates to an apparatus for effecting the assembly of side air bag modules according to the aforementioned procedure and which is constituted by the following means.
- means for folding the lateral parts of the bellows-shaped bag consist, in the first place, of lower swords arranged on the fixed plate, and below the bag, which cooperate with a folding presser located on a mobile upper plate and which descends until it is located at a convenient height of the bag for said swords to cause the first turning movement of said lateral parts of the bag, delimiting the base of the folded bag with a width less than that of the casing.
- said folding means also include upper swords arranged on the movable upper plate, which carry out the second movement of rotation of the folding, leaving the movable plate below the folding clamp.
- means for winding the folded bag consisting of clamps equipped with opening and closing means to hold the bag at the beginning of the winding and release it at the end of it, turning means on its axis to carry out the winding of the bag and means of translation to bring them closer and separate them from the bag.
- the mentioned means of turning means have regulation and control elements that allow the bag to have the desired number of turns.
- Figures 1a and 1b show in schematic views in plan and cross section the bag of the side airbag module object of the present invention in the deployed state.
- Figures 2a and 2b show in schematic views in plan and cross section the bag of the side airbag module object of the present invention in a folded state, before proceeding to the winding step.
- Figures 3a and 3b show in schematic views in elevation and plan, the apparatus used for mounting a side airbag module according to the invention.
- Figures 4a, 4b and 4c show schematic views of the apparatus used for mounting a side airbag module according to the present invention, at different times during the folding step.
- the elevation view of Figure 4a shows the beginning of the folding step by moving the folding clamp downward.
- the plan views of Figures 4b and 4c show the action of the lower swords to make the sack folds and their shape.
- Figures 5a and 5b show schematic elevational and plan views of the apparatus used for mounting a side airbag module according to the present invention during the start of the bag rolling step, and Figures 6a and 6b do the same at the end of that stage.
- Figures 7a and 7b show schematic elevational and plan views of the apparatus used for mounting a side airbag module according to the present invention during the last stage of the process.
- Figure 1a shows a plan view of a sack 12 of rounded shape with a lower edge 16, an upper edge 17 and lateral edges. 18, 19. This bag would be integrated into the airbag module through edge 16 through which it would receive gas from a generator (not shown).
- Figure 1b shows a schematic cross-sectional view of bag 12 consisting of a thick dashed line without showing, for simplicity, the two walls of bag 12 and the space between them.
- FIGS 2a and 2b show the same views of the bag 12 'after the folding step in which its width A is slightly less than the width of the carcass.
- the turning movements G1 and G2 that must take place to achieve the desired bends have been outlined.
- the folded sack 12 ' is then wound on itself starting from edge 17 and up to edge 16 forming a spirally wound band. Once placed on top of the casing, it would be inserted into it.
- Said device is made up of the following elements: - A fixed lower plate 1 and a movable upper plate 2 that support the other elements that make up the device.
- a folding clamp 4 that moves vertically with the movable upper plate 2 in the ZZ 'direction and that has means 7 to move in the X-X' direction. Cooperate with Swords 3A, 3B, and 3C to perform bag folding operations.
- - A clamp 5 to carry out bag winding operations. It has an opening and closing mechanism 9, a turning mechanism 8 and translation means 7 in the X-X 'direction.
- a packer 6 that serves to push the bag and introduce it inside the housing 13 around the generator 11.
- a clamping foot 14 to hold the bag 12 once it is inserted into the casing 13.
- a U-shaped retention element 15 to prevent the withdrawal of the clamp 5 from dragging the bag 12.
- the casing 13 and the gas generator 11 are placed in the cradle 10 and the sack 12 is extended on the fixed plate 1, above the swords 3A and 3B.
- the housing 13 is firmly attached to the cradle 10 by means not shown, such as, for example, an electromagnet arranged in the cradle 10.
- the airbag is arranged so that its central axis has the direction XX 'as it is perfectly appreciated in Fig. 3b, but the placement of the cradle 10 or the fixing to it of the casing 13 so that the bag was angularly displaced with respect to the direction of the X-X ', thereby achieving different effects on the opening of the bag 12.
- the housing 13 has the gas generator 11 fastened inside it by means of two studs, not shown.
- the bag 12 wraps around the gas generator and is in turn attached to the casing 13 since the two studs also pass through it.
- the cradle 10 is provided with two detectors not shown, one to detect the presence of the casing 13 and the other to detect the whole of the airbag module by detecting the presence of one of the mentioned studs.
- Figure 4a represents the state of the apparatus after beginning the folding process. Firstly, the movable upper plate 2 is released from a pneumatic interlock, by means of stop cylinders, not shown, which the keep them secure in the top position. The lowering of the mobile upper plate 2 then takes place, the folding clamp 4 approaching the vicinity of the bag 12.
- This movement is produced by pneumatic actuation by cylinders provided with a rod block in both directions of their stroke, and is guided by linear bearings on four calibrated bars, to increase the reliability of the movement.
- the end of the movement of this plate is brought to a mechanical stop and this point produces a pneumatic interlocking, by stop cylinders, of the mobile plate 2 with respect to the fixed plate 1 that maintains an appropriate distance between both plates.
- the non-representation of the mentioned means in Figure 4a should not suppose any difficulty for the expert in the matter to understand.
- the clamps 5 are closed around the end of the folded bag 12 ', by operating the opening-closing mechanism 9 which is pneumatically operated by cylinder, and consists of an eccentric lever that allows the relative displacement of two long fingers, which when closed leave the end of the bag between them but without pinching it.
- the swords 3A, 3B are removed as indicated by the arrows F2A, F2B and also the upper sword 3C and the folding clamp 4 from the area of influence of the folded bag 12 'and the casing 13.
- the folded bag 12 ' is wound with the clamp 5 by means of twisting movements in the direction indicated by arrow F3.
- the clamp moves in direction XX 'as indicated by date F4 until it is positioned on top of cradle 10.
- the translation means 7 of the aforementioned elements are composed of servo-controlled motorization and the transmission of the movement is carried out by means of a pulley and toothed belt, and the movements are also guided by ball bearings and guides.
- the turning mechanism 8 it is composed of a servo-controlled motorization, toothed belt transmission, and a set of bearings to allow the necessary relative turns between the clamp 5 and its opening-closing mechanism 9. All these movements, in addition to servo-controlled, have programmable linear and angular interpolation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES02702420T ES2271214T3 (es) | 2002-02-26 | 2002-02-26 | Procedimiento y dispositivo para el montaje de un modulo de airbag lateral. |
DE60213668T DE60213668T2 (de) | 2002-02-26 | 2002-02-26 | Verfahren und vorrichtung für die montage eines seitenairbagmoduls |
PCT/ES2002/000083 WO2003072400A1 (es) | 2002-02-26 | 2002-02-26 | Procedimiento y dispositivo para el montaje de un modulo de airbag lateral |
AT02702420T ATE334851T1 (de) | 2002-02-26 | 2002-02-26 | Verfahren und vorrichtung für die montage eines seitenairbagmoduls |
AU2002235954A AU2002235954A1 (en) | 2002-02-26 | 2002-02-26 | Method and device for the assembling of a lateral airbag module |
EP02702420A EP1479569B1 (en) | 2002-02-26 | 2002-02-26 | Method and device for the assembling of a lateral airbag module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2002/000083 WO2003072400A1 (es) | 2002-02-26 | 2002-02-26 | Procedimiento y dispositivo para el montaje de un modulo de airbag lateral |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003072400A1 true WO2003072400A1 (es) | 2003-09-04 |
Family
ID=27763504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2002/000083 WO2003072400A1 (es) | 2002-02-26 | 2002-02-26 | Procedimiento y dispositivo para el montaje de un modulo de airbag lateral |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1479569B1 (es) |
AT (1) | ATE334851T1 (es) |
AU (1) | AU2002235954A1 (es) |
DE (1) | DE60213668T2 (es) |
ES (1) | ES2271214T3 (es) |
WO (1) | WO2003072400A1 (es) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5240282A (en) * | 1992-05-22 | 1993-08-31 | Allied Signal Inc. | Air bag and folding technique |
US5348341A (en) * | 1993-11-01 | 1994-09-20 | General Motors Corporation | Method of folding an air bag |
US5471817A (en) * | 1993-04-07 | 1995-12-05 | Automated Solutions Inc. | Bag folding system |
WO1997021564A1 (en) * | 1995-12-13 | 1997-06-19 | General Motors Corporation | Air bag fold and method |
US5694737A (en) * | 1995-03-31 | 1997-12-09 | Morton International, Inc. | Method and apparatus for packing an inflatable air bag in a housing of an air bag module assembly |
US5755078A (en) * | 1996-12-04 | 1998-05-26 | Omega Automation, Inc. | Method and apparatus for folding an inflatable cushion |
EP0968887A2 (en) * | 1998-06-30 | 2000-01-05 | Nihon Plast Co., Ltd. | Airbag apparatus, folding method for airbag, and folding apparatus for airbag |
-
2002
- 2002-02-26 EP EP02702420A patent/EP1479569B1/en not_active Expired - Lifetime
- 2002-02-26 AU AU2002235954A patent/AU2002235954A1/en not_active Abandoned
- 2002-02-26 WO PCT/ES2002/000083 patent/WO2003072400A1/es active IP Right Grant
- 2002-02-26 DE DE60213668T patent/DE60213668T2/de not_active Expired - Lifetime
- 2002-02-26 AT AT02702420T patent/ATE334851T1/de not_active IP Right Cessation
- 2002-02-26 ES ES02702420T patent/ES2271214T3/es not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5240282A (en) * | 1992-05-22 | 1993-08-31 | Allied Signal Inc. | Air bag and folding technique |
US5471817A (en) * | 1993-04-07 | 1995-12-05 | Automated Solutions Inc. | Bag folding system |
US5348341A (en) * | 1993-11-01 | 1994-09-20 | General Motors Corporation | Method of folding an air bag |
US5694737A (en) * | 1995-03-31 | 1997-12-09 | Morton International, Inc. | Method and apparatus for packing an inflatable air bag in a housing of an air bag module assembly |
WO1997021564A1 (en) * | 1995-12-13 | 1997-06-19 | General Motors Corporation | Air bag fold and method |
US5755078A (en) * | 1996-12-04 | 1998-05-26 | Omega Automation, Inc. | Method and apparatus for folding an inflatable cushion |
EP0968887A2 (en) * | 1998-06-30 | 2000-01-05 | Nihon Plast Co., Ltd. | Airbag apparatus, folding method for airbag, and folding apparatus for airbag |
Also Published As
Publication number | Publication date |
---|---|
EP1479569B1 (en) | 2006-08-02 |
AU2002235954A1 (en) | 2003-09-09 |
ATE334851T1 (de) | 2006-08-15 |
DE60213668T2 (de) | 2007-08-09 |
EP1479569A1 (en) | 2004-11-24 |
ES2271214T3 (es) | 2007-04-16 |
DE60213668D1 (de) | 2006-09-14 |
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