GB2328650A - Welded airbag cushion - Google Patents
Welded airbag cushion Download PDFInfo
- Publication number
- GB2328650A GB2328650A GB9718143A GB9718143A GB2328650A GB 2328650 A GB2328650 A GB 2328650A GB 9718143 A GB9718143 A GB 9718143A GB 9718143 A GB9718143 A GB 9718143A GB 2328650 A GB2328650 A GB 2328650A
- Authority
- GB
- United Kingdom
- Prior art keywords
- seam
- airbag cushion
- cushion according
- join
- break
- 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- Withdrawn
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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
- B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- 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
- B60R21/2334—Expansion control features
- B60R21/2342—Tear seams
-
- 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
- B60R21/235—Inflatable members characterised by their material
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/133—Fin-type joints, the parts to be joined being flexible
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2313/00—Use of textile products or fabrics as reinforcement
-
- 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
- B29L2022/00—Hollow articles
- B29L2022/02—Inflatable articles
-
- 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
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
- B60R2021/23571—Inflatable members characterised by their material characterised by connections between panels
- B60R2021/2359—Welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
An airbag cushion (1) comprising at least two pieces of fabric having a seam (2) fastening them together around their peripheries and a number of joins (4) fastening them away from their peripheries where either or both of the seam (2) or joins (4) are formed by welding.
Description
AIRBAG
The present invention relates to an airbag for use in a vehicle safety restraint.
Aiffiags comprise folded fabric cushions connected to a source of inflation gas which is activated when an emergency situation is detected, for example by a crash sensor. The cushion is inflated within a few milliseconds to protect the vehicle occupant from the adverse effect of impact with interior parts of the vehicle such as the steering wheel, the instrument panel and side door panels.
Most cushions are formed from two pieces of woven fabric stitched together around their periphery. Sometimes additional stitch patterns are used in the body of the cushion to attach the two sides. These are arranged to break during airbag deployment to control the inflation kinematics of the cushion. When pressure in the cushion reaches a predetermined level, the stitches break and release more of the cushion volume for the inflation gases.
However, stitches weaken the fabric of the cushion and provide high stress to small areas of fabric adjacent the stitching. Also stitching is costly, time consuming and manpower intensive.
It is an object of the invention to provide an improved airbag.
According to the present invention there is provided an airbag cushion formed of at least two pieces of fabric having a seam to fasten them together around their peripheries and at least one join fastening them together in a region away from the periphery, wherein either or both of the seam and the join, is formed by welding. Preferably both the seam and the join are welds. Alternatively, the outer seam may be stitched and the inner joins formed by welding, or vice versa.
There may be a second seam around the periphery, spaced from the first seam by a small margin and generally coaxial with it. This second seam is adapted to open under a predetermined load and thus make available to the inflating gas the extra cushion space of the margin. The force needed to break the second seam is advantageously less than the force needed to break the primary outer seam.
The second seam may be made with indentions at intervals so that small sections of the seam are at a smaller radius from the centre of the cushion. These will break first and will thus absorb more energy and protect the outer seam from the high loads. In this way the inflation characteristics of the cushion can be controlled and peak loads on the fabric reduced. The shape of the cushion as it is inflating can also be influenced by including a pattern of welds across its surface, for example a pattern of dots spread over the surface, which may be in a random pattern or in a regular one.
Weld lines in radial lines, a star shaped pattern, u-shapes or other geometric patterns are
another possibility. The weld dots or lines should be relatively weak joins, so to avoid
damage to the fabric during rupture of the weld, so small dots and/or thin lines are preferable. It would also be possible to apply a very low energy weld over the whole
surface of the cushion. Rupture of this join would be similar in effect to the process of
opening a plastic bag.
Preferably the outer seam is formed of a relatively wide weld with the strength of the
weld decreasing from the outer to the inner edge. Under predetermined stress this will
partially break from the weaker inner edge outwardly, and will thus release a larger
volume of cushion for the gas to occupy, reducing potential peak loads, as for example,
the mechanical load arising when the vehicle occupant impacts the cushion. Such a weld
line would typically be between 2mm and 50mm thick. With a thicker weld line it is
possible to use a lower weld force and hence a lower breaking force for the seam. Of
course the force required to break the welded seam should be less than the force required
to break the fiibric of the cushion.
For a better understanding of the present invention and to show how the same may be candied into effect, reference will now be made, by way of example, to the accompanying drawings, in which:
Figure 1 is a schematic plan view of an airbag cushion according to one embodiment of the invention.
Figure 2 is a graph illustrating the force required to break the welds of the cushion of figure 1 as viewed along the diameter of the cushion along the line X-X.
Figure 3 is a schematic plan view of an airbag cushion according to a second embodiment of the invention.
Figure 4 is a schematic plan view of an airbag cushion according to a third embodiment ofthe invention.
Figure 5 is a schematic plan view of an airbag cushion according to a fourth embodiment of the invention.
Figures 1 and 3 to 5 show a driver's side airbag cushion 1 made from two circular pieces of fabric placed one on top of the other and fastened together at their periphery by at least one weld line 2. The peripheral seam may instead be a stitch line. The cushion has a central inflator hole 3 through which inflation gas is input. A pattern of additional welded joins 4 is arranged on the surface of the cushion.
In the embodiment of figure 1 the peripheral seam line 2 is relatively wide and of quite high strength. The additional welded joins 4 are low energy dots spread across the surface of the cushion in a generally regular aray A random pattern could alternatively be used.
The force needed to break the peripheral seam line 2 and the dot joins 4 is indicated by the graph of figure 2 wherein a typical cushion rupturing force A is indicated by the broken line. Breaking of the high energy peripheral seam line 2 requires a force higher than the typical cushion rupturing force A, as indicated by the higher outer force peaks shown in solid line, and thus the peripheral seam remains intact during airbag deployment. The low energy dot joins 4 however, require a force lower than A to break as indicated by the lower central force peaks and thus these do break during deployment.
Welding tends to weaken the cushion fabric directly adjacent to the weld due to thermal conduction. The effect of this can be reduced using welding in which the energy used to form the join is higher in the middle than at the edges of the weld line.
In figure 3 the additional joins 4 are four radial lines. These joins will break from the inside towards the outside releasing more cushion volume and reducing the deployment speed in the direction of the occupant and thus, once the maximum extension of the cushion is reached , reducing peak loads on the peripheral seam and on the cushion mounting arrangement Figure 4 shows the additional join 4 as a double circular seam. The inside one is of a lower weld energy and both are of lower weld energy than the peripheral seam 2.
Figure 5 has a plurality of radial indentation joins 4, in the form of fingers extending inwardly from the peripheral seam 2. This form of pattern can be used to decrease the speed of opening of the cushion as deployment progresses, ie to impart a form of braking on the kinematics of the deployment sequence. The finger joins 4 can be constructed so that the force needed to rupture them increases with the cushion radius, ie with the distance from the cushion inlation inlet hole 3.
Many other patterns ofjoin are of course envisaged. The extract pattern is chosen to suit the inflation characteristics required for the cushion.
The welds may be made by the known techniques of ultrasonic or vibration or temperature welding. This invention applies equally to passenger side airbags and side impact airbags but has only been illustrated here for driver's side airbags.
Claims (15)
1. An airbag cushion comprising at least two pieces of fabric having a seam fastening them together around their peripheries and at least one join fastening them together in a region away from the peripheries, wherein either or both of the seam and the join, is formed by welding.
2. An airbag cushion according to claim 1 wherein both the seam and the join are welds.
3. An airbag cushion according to claim 1 wherein one of the seam and the join is stitched and the other is formed by welding.
4. An airbag cushion according to claim 3 wherein the seam is stitched and the join is formed by welding.
5. An airbag cushion according to any one of the preceding claims comprising a second seam around the periphery, spaced from the first seam by a small margin and generally coaxial with it and adapted to open under a predetermined load to make available to the inflating gas the extra cushion space of the margin.
6. An airbag cushion according to claim 5 wherein the force needed to break the second seam is less than the force needed to break the first seam.
7. An airbag cushion according to any one of claims 5 or 6 wherein the second seam is formed with indentations at spaced intervals so that some sections of the seam are at a smaller radius from the centre of the cushion, than other sections.
8. An airbag cushion according to any one of the preceding claims comprising a pattern of dot welds across its surface.
9. An airbag cushion according to claim 8 wherein the dot welds are arranged in a random pattern.
10. An airbag cushion according to claim 8 wherein the dot welds are arranged in a regular pattern.
11. An airbag cushion according to claim 7 comprising a geometric pattern of weld lines.
12. An airbag cushion according to claim 7 comprising a low energy weld over the whole surface of the cushion.
13. An airbag cushion according to any one of claims 1 to 3 and 5 to 12, wherein the first seam is formed of a relatively wide weld with a strength which decreases from the outer to the inner edge of the weld.
14. An airbag cushion according to any preceding claim wherein the force required to break the or each welded seam is less than the force required to break the fabric of the cushion.
15. An airbag cushion substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9718143A GB2328650A (en) | 1997-08-27 | 1997-08-27 | Welded airbag cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9718143A GB2328650A (en) | 1997-08-27 | 1997-08-27 | Welded airbag cushion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9718143D0 GB9718143D0 (en) | 1997-10-29 |
| GB2328650A true GB2328650A (en) | 1999-03-03 |
Family
ID=10818099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9718143A Withdrawn GB2328650A (en) | 1997-08-27 | 1997-08-27 | Welded airbag cushion |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2328650A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2331955A (en) * | 1997-12-03 | 1999-06-09 | Christopher Paul Kavanagh | Welded inflatable impact protection device |
| GB2339738A (en) * | 1998-07-16 | 2000-02-09 | Rover Group | Airbag with initially uneven surface |
| EP1163998A2 (en) * | 2000-06-16 | 2001-12-19 | Eul & Günther GmbH | Process and apparatus for making multilayered products and products obtained thereby |
| EP1216168A1 (en) * | 1999-09-24 | 2002-06-26 | Milliken & Company | Welded airbag cushion comprising sewn reinforcement seams |
| EP1514743A1 (en) * | 2003-09-10 | 2005-03-16 | HONDA MOTOR CO., Ltd. | Airbag device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257950A (en) * | 1991-07-24 | 1993-01-27 | Daimler Benz Ag | Inflatable impact protection cushion |
| GB2301565A (en) * | 1995-06-01 | 1996-12-11 | Trw Vehicle Safety Systems | Air bag tether stitching |
| GB2314051A (en) * | 1996-06-11 | 1997-12-17 | Bridgestone Corp | Airbag joint construction |
-
1997
- 1997-08-27 GB GB9718143A patent/GB2328650A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257950A (en) * | 1991-07-24 | 1993-01-27 | Daimler Benz Ag | Inflatable impact protection cushion |
| GB2301565A (en) * | 1995-06-01 | 1996-12-11 | Trw Vehicle Safety Systems | Air bag tether stitching |
| GB2314051A (en) * | 1996-06-11 | 1997-12-17 | Bridgestone Corp | Airbag joint construction |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2331955A (en) * | 1997-12-03 | 1999-06-09 | Christopher Paul Kavanagh | Welded inflatable impact protection device |
| GB2339738A (en) * | 1998-07-16 | 2000-02-09 | Rover Group | Airbag with initially uneven surface |
| EP1216168A1 (en) * | 1999-09-24 | 2002-06-26 | Milliken & Company | Welded airbag cushion comprising sewn reinforcement seams |
| EP1216168A4 (en) * | 1999-09-24 | 2005-04-27 | Milliken & Co | Welded airbag cushion comprising sewn reinforcement seams |
| EP1163998A2 (en) * | 2000-06-16 | 2001-12-19 | Eul & Günther GmbH | Process and apparatus for making multilayered products and products obtained thereby |
| EP1163998A3 (en) * | 2000-06-16 | 2002-02-06 | Eul & Günther GmbH | Process and apparatus for making multilayered products and products obtained thereby |
| EP1249182A2 (en) * | 2000-06-16 | 2002-10-16 | Eul & Günther GmbH | Multilayered product |
| EP1249182A3 (en) * | 2000-06-16 | 2003-03-12 | Eul & Günther GmbH | Multilayered product |
| EP1514743A1 (en) * | 2003-09-10 | 2005-03-16 | HONDA MOTOR CO., Ltd. | Airbag device |
| US7401811B2 (en) | 2003-09-10 | 2008-07-22 | Honda Motor Co., Ltd. | Airbag device |
| US7581755B2 (en) | 2003-09-10 | 2009-09-01 | Honda Motor Co., Ltd. | Airbag device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9718143D0 (en) | 1997-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |