GB2262486A - Vehicle air bag mounting. - Google Patents
Vehicle air bag mounting. Download PDFInfo
- Publication number
- GB2262486A GB2262486A GB9226119A GB9226119A GB2262486A GB 2262486 A GB2262486 A GB 2262486A GB 9226119 A GB9226119 A GB 9226119A GB 9226119 A GB9226119 A GB 9226119A GB 2262486 A GB2262486 A GB 2262486A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air bag
- retainer
- holding ring
- convex portion
- mounting structure
- 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.)
- Granted
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
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Description
2j 262486
TITLE OF THE INVENTION
Air Bag Mounting Structure for Air Bag System FIELD OF THE INVENTION
The present invention relates to an air bag mounting structure in an air 11-jag system to protect an oc-cu-pant by extending an air bag during a vehicle collision DE"CRIPTION OF THE RELATED ART An air bag system mounted in a stationary por tion in front of a vehicle seLat has an air bag inflated instantly in an emergency such as a collision by gas -,,ihj-.chisdischarge-d from a gas generator.
Fig. 3 is a section showing an air bag system for a driver's seat according to the prior art, and Fig. 4 is an enlarged section showing a portion A of Fig. 3.
In these Figures, reference nemeral 10 denotes 1 a member, called the "retainer", for holding an air bag 16. The retainer 10 has a mounting opening 12 at a center thereof where an inflater 14 is mounted.
The air bag 16 receives a leading end of the inflater 14 and is equipped with a gas introduction port 18 for introducing gas generated by the inflater 14 into the air bag 16. The introduction port 18 is arranged at the peripheral edge of the mounting opening 12. The air bag 16 is retained on the retainer 10 by clamping its gas introduction port 18 between a holding ring 20 and the peripheral edge of the mounting opening 12.
The air bag 16 is folded in an extendable manner and covered with a module cover 22. This module cover 22 is torn by extension pressure of the air bag 16 when the air bag 16 is inflated by gas discharged from the inflater 14.
The holding ring 20 is f ixed in the prior art to the retainer with rivets (especially blind rivets) 24 or screws (not shown).
The holding ring 20 may be fixed with stud bolts which are extended downward of Fig. 3 through bolt holes of the retainer 10. These bolts also attach the inflater 2 to the retainer.
In the air bag mounting structure of the air bag system according to the prior art, the holding ring '10 has a flat face, at which it abuts against the air bag 16. Moreover,the retainer 10 has a flat face, at which it abuts against the air bag 16. As a result, the gas introduction port 18 of the air bag 16 is liable to have its peripheral edge coming out of the clamping portion between the retainer 10 and the holding ring 20. Thus, counter-measures are required to increase the number or diameter of the riveLs 24 and a great deal of time is required for rtiounting the air bag.
D SUMMARY OF THE INVE,,TION
OBJECT A" An object of the present invention is to provide a structure having a high air bag mounting strength.
According to the present invention, there is provided an air bag mounting structure for an air bag system, which is constructed by applying the peripheral edge of a gas introduction port of an air bag to an air bag holding member, by laying a doubling plate over the peripheral edge, and by clamping the peripheral edge of the gas introduction port of the air bag between the doubling plate and the air bag holding member, wherein one of the air bag holding member and i said doubling plate is formed with a convex portion whereas the other is formed with a concave portion.
In the air bag mounting structure for an air bag system according to the present invention, the air bag is firmly clamped by the convex and concave portions which are formed in the doubling plate and the' air big holding member.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a section showing a structure according to an embodiment of the present invention; Fig. 2 is a section showing a structure according to another embodiment of the present invention; Fig. 3 is a section showing the air bag system of the prior art;
Fig. 4 is a section showing the air bag mounting structure of the prior art;
Fig. 5 is a section showing an air bag mounting structure according to still another embodiment of the present invention; and Fig. 6 is an exploded perspective view showing a further embodiment of the present invention.
DESCRIPTION OF.THE PREFERRED EMBODIMENTS
The present invention will be described in the 4 following in connection with its embodiments with reference to the accompanying drawings. Fig. 1 is an enlarged section showing an essential poi-t-ion of an air bag mounting structure for an air bag system according to an embodiment of the present invention.
In the present embodiment, the holding ring 20 is formed in its periphery with a convex portion 26, which is extended toward the retainer 10. The retainer 10 is formed concentri- cally with the mounting opening 12 in its periphery with a concave portion 28 for fitting the convex portion therein. The air bag 16 is fitted between the holding ring 20 and the reainer 10 so that it is firmly clamped between the convex portion 26 and th concave portion 28 and is prevented from coming out without fail. The holding ring 20 is fixed to the retainer 10 by means of rivets or bolts.
Fig. 'I is an enlarged section showing an air bag mounting structure according to another embodiment of the present invention. In the present embodiment, the holding ring 20 is formed in its periphery with a concave portion 30 whereas the retainer 10 is formed in its periphery with a convex portion 32. The holding is fixed to the retainer 10 by means of rivets ring. or bolts. As also in this embodiment, the air bag e 16 is clamped between the convex portion 32 and the concave portion 30 and prevented from coming out without fail.
Fig. 5 is an enlarged section showing an essential portion of an air bag mounting structure according t'o still another embodiment of the present. inven7 tion. In the present embodiment, the holding ring 20 is formed in its outer periphery with a flanged convex portion 34, which is to be fitt6d in the concave portion 28 of the retainer 10. The holding ring 20 is fixed to the retainer 10 by means of rivets or bolts. In the present embodiment, too, the air bag 16 is clamped between the convex portion 34 and the concave portion 28 and prevented from coming out without fail.
In any of the foregoing embodiments, the convex portions 26, 32 and 34 and the concave portions 28 and 30 are formed continuously in the peripheral direction. According to the present invention, those convex and concave portions may be formed discontinuously, as shown in Fig. 6. In Fig. 6, the holding ring 20 is formed with four arcuate convex portions 26A, 26B, 26C and 26D. On the other hand, the retainer 10 is formed with concave portions 28A, 28B, 28C and 28D which correspond to those convex portions 26A to 26D. Incidentally, numeral 36 designates a reinforcing 6 cloth laid over the air bag 16. Numeral 38 designates bolts which are fixed in the holding ring 20 and inserted into holes 40 of -the air bag 16, L-oles 42 of the retainer 10, and holes 44 of the inflater 15. By fastening nuts on those bolts 38 individually, the air bag 16 and the inflater 14 are individually fixed on the retainer 10.
According to the present invention, as described above, the convex portion and the concave portion are formed in the holding ring 20 and the retainer 10 so that the air bag 16 is blocked from coming out -without fail. As a result, all the rivets 24 used in the prior art can be eliminated, as shown in Fig. 6. In order to achieve more reliable fixing of the air bag 16, however, less rivets may be adopted. These rivets may have a smaller diameter than that of the prior art.
In the present invention, the holding ring 20 may be formed with both a convex portion and a concave portion, and the retainer 10 may be formed with a concave portion and a convex portion which can be fitted on and in the foregoing concave and convex portions. In the embodiment shown in Fig. 6, for example, the convex portions 26A and 26C may be replaced by concave portions, and the concave portions 28A and 228C of the 7 retainer 10 may accordingly be replaced by convex portions.
The foregoing embodiments are directed to an air bag system for a driver's seat, but the present invention may be applied to an air bag system for a passenger's seat.
According to the air bag mounting structure of the present invention, as has been described herein before, the air bag is fixedly clamped between the holding ring and the air bag holding member such as the retainer by forming the convex portion and the concave portion formed in those members. It is possible to decrease the number or diameter of fixtures such as rivets for connecting the holding ring and the air bag holding member.
This decrease makes it possible to facilitate the as sembly of the air bag system.
In the present invention, the bending rigidity of the holding ring can be enhanced by forming the convex portion or the concave portion in the holding ring.
8
Claims (6)
1. An air bag mounting structure for an air bag system, comprising: a retainer having an inflater mounting opening; C1 an air bag having a gas introduction port ar ranged on a ing; peripheral edge of said mounting open a holding ring for clampIng the peripheral edge of the gas introduction port of said air bag between itself and the peripheral edge of the mounting opening of said retainer; fixing means for fixing said holding ring on said retainer; a convex portion formed in one of said holding ring and said retainer; and a concave portion formed in the other of said holding ring and said retainer, said convex portion being fitted together with the peripheral edge of the gas introduction port of said air bag in said concave portion, whereby the peripheral edge of the gas introduction port of said air bag is firmly held between said holding ring and said retainer.
9
2. An air bag mounting structure according to Claim 1, wherein said f ixing means includes at least one of a rivet and a bolt.
3. An air bag mounting structure according to Claim 1, wherein said convex portion and said concave portion are formed to extend in the peripheral direction in said holding ring and the mounting opening of said retainer.
4. An air bag mounting structure according to Claim 1, wherein said convex portion is a flange rising from the outer periphery of said holding ring.
5. An air bag mounting structure according to Claim 1, wherein said holding ring is formed with both a convex portion and a concave portion whereas said retainer is formed with a concave portion and a convex portion which are sized and positioned to engage with the convex portion and the concave portion of said holding ring, respectively.
6. An air bag mounting structure substantially as hereinbefore described with reference to the accompanying description and Figures 1; 2; 5; or 6 of the drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3333414A JPH05162602A (en) | 1991-12-17 | 1991-12-17 | Air bag fitting structure for air bag device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9226119D0 GB9226119D0 (en) | 1993-02-10 |
| GB2262486A true GB2262486A (en) | 1993-06-23 |
| GB2262486B GB2262486B (en) | 1995-02-22 |
Family
ID=18265847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9226119A Expired - Fee Related GB2262486B (en) | 1991-12-17 | 1992-12-15 | Air bag mounting structure for air bag system |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH05162602A (en) |
| CA (1) | CA2084724A1 (en) |
| DE (1) | DE4242137A1 (en) |
| FR (1) | FR2684942A1 (en) |
| GB (1) | GB2262486B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672561A1 (en) * | 1994-03-15 | 1995-09-20 | Morton International, Inc. | Method and apparatus for retaining an airbag within a passenger-side airbag module |
| EP0687598A1 (en) * | 1994-06-15 | 1995-12-20 | General Motors Corporation | Air bag module |
| US5496065A (en) * | 1994-04-26 | 1996-03-05 | Breed Automotive Technology, Inc. | Inflator assembly |
| DE19539164A1 (en) * | 1994-10-20 | 1996-04-25 | Trw Inc | Vehicle safety device with inflatable restraint devices |
| WO1997024241A1 (en) * | 1995-12-28 | 1997-07-10 | Precision Fabrics Group, Inc. | Attachment device for an inflatable protective cushion |
| CN101456398B (en) * | 2007-12-13 | 2012-10-10 | 高田株式会社 | Airbag apparatus |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2795154B2 (en) * | 1993-12-17 | 1998-09-10 | 池田物産株式会社 | Airbag device |
| US5484165A (en) * | 1994-08-12 | 1996-01-16 | Trw Vehicle Safety Systems Inc. | Air bag module |
| JP2000043666A (en) * | 1998-07-27 | 2000-02-15 | Nippon Plast Co Ltd | Airbag system |
| DE20315347U1 (en) | 2003-09-30 | 2003-12-18 | Takata-Petri Ag | Arrangement for fastening an airbag in a driver airbag module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5141247A (en) * | 1990-12-18 | 1992-08-25 | Trw Inc. | Air bag inflator assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3787074A (en) * | 1971-05-28 | 1974-01-22 | Allied Chem | Multiple pyro system |
| DE2319147A1 (en) * | 1973-04-16 | 1974-10-31 | Daimler Benz Ag | INFLATABLE GAS CUSHION TO PROTECT VEHICLE OCCUPANTS |
-
1991
- 1991-12-17 JP JP3333414A patent/JPH05162602A/en active Pending
-
1992
- 1992-12-07 CA CA002084724A patent/CA2084724A1/en not_active Abandoned
- 1992-12-14 DE DE4242137A patent/DE4242137A1/de not_active Withdrawn
- 1992-12-15 FR FR9215078A patent/FR2684942A1/en not_active Withdrawn
- 1992-12-15 GB GB9226119A patent/GB2262486B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5141247A (en) * | 1990-12-18 | 1992-08-25 | Trw Inc. | Air bag inflator assembly |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672561A1 (en) * | 1994-03-15 | 1995-09-20 | Morton International, Inc. | Method and apparatus for retaining an airbag within a passenger-side airbag module |
| US5496065A (en) * | 1994-04-26 | 1996-03-05 | Breed Automotive Technology, Inc. | Inflator assembly |
| EP0687598A1 (en) * | 1994-06-15 | 1995-12-20 | General Motors Corporation | Air bag module |
| DE19539164A1 (en) * | 1994-10-20 | 1996-04-25 | Trw Inc | Vehicle safety device with inflatable restraint devices |
| WO1997024241A1 (en) * | 1995-12-28 | 1997-07-10 | Precision Fabrics Group, Inc. | Attachment device for an inflatable protective cushion |
| US5845928A (en) * | 1995-12-28 | 1998-12-08 | Precision Fabrics Group, Inc. | Attachment device for an inflatable protective cushion |
| CN101456398B (en) * | 2007-12-13 | 2012-10-10 | 高田株式会社 | Airbag apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2684942A1 (en) | 1993-06-18 |
| GB9226119D0 (en) | 1993-02-10 |
| CA2084724A1 (en) | 1993-06-18 |
| JPH05162602A (en) | 1993-06-29 |
| GB2262486B (en) | 1995-02-22 |
| DE4242137A1 (en) | 1993-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19961215 |