CN101954896A - Curtain type gas bag - Google Patents
Curtain type gas bag Download PDFInfo
- Publication number
- CN101954896A CN101954896A CN2010102260185A CN201010226018A CN101954896A CN 101954896 A CN101954896 A CN 101954896A CN 2010102260185 A CN2010102260185 A CN 2010102260185A CN 201010226018 A CN201010226018 A CN 201010226018A CN 101954896 A CN101954896 A CN 101954896A
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- CN
- China
- Prior art keywords
- type gas
- curtain type
- gas bag
- guiding chamber
- chamber
- 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.)
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Classifications
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- 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
- B60R21/231—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
-
- 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
- B60R21/201—Packaging straps or envelopes for inflatable members
-
- 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
- B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
A kind of curtain type gas bag that is installed in the roof beam zone of self-propelled vehicle; described curtain type gas bag comprises the air bag skin; described air bag leatherware has two sidewalls; described two sidewalls are connected to each other and seal air chamber along fringe region; described air chamber comprises at least one protection zone and at least one guiding chamber; flow and are communicated with and described guiding chamber is arranged between the upper part and described protection zone of described fringe region in described guiding chamber and described protection zone; is expandable in described guiding chamber under the installing condition of described curtain type gas bag between the inner structure of described protection zone and self-propelled vehicle; the parcel that roll and/or folding of described guiding chamber and described protection zone is adjoining under the quiescence of described curtain type gas bag; wherein; under the quiescence of described curtain type gas bag; the air bag skin of guiding chamber shows at least one folding line, so that described guiding chamber under static state is bent.
Description
Technical field
The present invention relates to a kind of curtain type gas bag that is installed in the roof beam zone of self-propelled vehicle.
Background technology
Curtain type gas bag is widely used in automobile technical field.These curtain type gas bags mainly are used for the head of protection passenger when side collision or roll-over accident take place.The air bag skin of curtain type gas bag normally comprises two sidewalls of sealing air chamber.The air bag skin is folded and/or is rolled up parcel, and is installed in the inner structure in roof beam zone of vehicle.In order to realize this purpose, air bag is equipped with installation component, mainly is the installation contact pin that is arranged in air bag skin top edge zone.
Commonly known in the art is like this air bag to be installed in the vehicle: the upper limb directed downwards and the air bag skin of air bag skin are rolled up parcel at outside left.This geometry of two types is common, be called as sometimes " p type " (p-role) and " b type " (b-role).This set has the following advantages: the air bag skin of expansion demonstrates low impact to the passenger, particularly when the passenger is not positioned at his normal place.The installation of this air bag and the shortcoming of rolling are: if do not adopt extra measure, the danger with exist taking place on the parts that the air bag skin is stuck in vehicle particularly occurs on the B post upon deployment.
In order to address this problem, document DE 10 2,005 011 676 A1 have proposed curtain type gas bag and have been equipped with the guiding chamber of extending from the main region of air chamber, thereby air chamber has main region (perhaps protection zone) and guiding chamber.Under static state, the part of sealing the protection zone of air bag skin is rolled into parcel, and the partial sum parcel of sealing the guiding chamber of air bag skin is adjacent.
In the geometry shown in document DE 10 2,005 011 676 A1, in the circumference scope that the height of guiding chamber is limited in wrapping up.Since in the self-propelled vehicle spendable space seldom, the diameter of the curtain type gas bag that wraps up and circumference need very little.Yet the geometry of some self-propelled vehiclees needs the guiding chamber of quite big height.
Summary of the invention
Thereby, for addressing this problem, the present invention improves common curtain type gas bag in the following manner: can increase the diameter of the curtain type gas bag that wraps up fully, also need not consider the expansion mode of curtain type gas bag, leave bigger height just can for one or several guiding chambers.
This problem can be by having technical solution of the present invention 1 the curtain type gas bag of feature solve.
Under the quiescence of curtain type gas bag of the present invention, the air bag skin of at least one guiding chamber shows at least one folding line, so that the guiding chamber under static state is bent.
In the size of the parcel that does not increase the air bag skin under the quiescence, and do not lose under the situation of the development rate of guiding chamber and whole curtain type gas bag and accuracy rate, this layout makes that the air bag with higher guiding chamber is set becomes possibility.
Preferred embodiment is produced by the subordinate technical scheme, and produces from the embodiment that the reference accompanying drawing is described.
Description of drawings
Fig. 1 a: the schematic top plan view of curtain type gas bag;
Fig. 1 b: along the section drawing of the A-A line of Fig. 1 a and be attached to outer cover on the air bag skin;
Fig. 1 c: the situation of the structure shown in Fig. 1 b after air bag is fully assembled and is installed on the self-propelled vehicle;
Fig. 1 d: the situation of the structure shown in Fig. 1 c behind airbag deployment;
Fig. 2 a: the identical schematic top plan view of the representation with Fig. 1 a of second embodiment of air bag;
Fig. 2 b: along the section drawing of the B-B line of Fig. 2 a and the outer cover that is attached to the air bag skin;
Fig. 2 c: the situation of the structure shown in Fig. 2 b after air bag is fully assembled and is installed on the self-propelled vehicle;
Fig. 3: the identical schematic top plan view of the representation with Fig. 1 a of the 3rd embodiment of air bag, and;
Fig. 4: the contact pin-outer cover part of one.
Description of reference numerals:
10 curtain type gas bags
12 the first side walls
14 second sidewalls
16 edge joints
18 upper limbs
18a, b, the upper part of c upper limb
20a, b, the lower part of c upper limb
22 left hand edges
24 right hand edges
26 lower edges
30 air chambers
32a, 32b protects the chamber
33 parcels
34 fill areas
36a, b, c guides the chamber
37a, b, c fold line
38 folding lines
40a, b, c installs contact pin
42a, b, c installs connecting piece perforation
44a, b, c contact pin seam
50 outer covers
50a first edge
52 outer cover holes
60 gas generators
70 inner structures
72 screws
80 contact pin-outer cover part
The specific embodiment
To do detailed elaboration by first embodiment to the present invention in conjunction with Fig. 1 a, 1b, 1c and 1d now.At first with reference to figure 1a and 1b.Below regulation be suitable for the accompanying drawing shown in all: a) in section drawing, the lines depicted as solid lines of Xiang Jiaoing directly, and the drafting of the lines with dashed lines outside section.B) accompanying drawing is not fully proportionally drawn.C) gas generator is not shown in the section drawing.
Air bag 10 comprises the air bag skin with two sidewalls 12 and 14.Sidewall 12 and 14 is sealed air chamber 30, and sidewall 12 is connected with 14 edge region, by edge joint 16 this fringe region is shown in an embodiment.It is emphasized that the air bag skin also can weave processing by one and make, thereby necessity useless is in this case used edge joint.
Fringe region by edge joint 16 definition has four parts herein, refers to left hand edge 22, right hand edge 24, lower edge 26 and jagged upper limb here.Described lower edge 26 has slope or Ω shape, and this is because described air chamber 30 has two protection zone 32a and the 32b that constitutes the protection zone.Described jagged upper limb has upper part 18a, 18b and 18c and lower part 20a, 20b, 20c and 20d.The zone of part 18a, 18b, 18c is positioned with guiding chamber 36a, 36b, 36c in the above.The height h of guiding chamber 36a, 36b, 36c is by upper part 18a, 18b, 18c and lower part 20a, the 20b of upper limb, the distance definition between 20c, the 20d.With the contiguous zone of lower part 20a, the 20b of upper limb and 20c as fill area 34; this fill area 34 is used for using gases and fills guiding chamber and protection zone; chamber 32a and 32b are just protected in described protection zone, and described gas is from the gas generator 60 that extends into to air chamber.
On top in the zone of lower part 20a, 20b, 20c and the 20d of edge, contact pin 40a, 40b and 40c are installed pass through edge joint 16 attached on the air bag skin.These are installed contact pin 40a, 40b and 40c and as being used for air bag 10 are installed in installation component on the self-propelled vehicle.Contact pin 40a, 40b and 40c are installed are provided with the hole, be respectively 42a, 42b and 42c.Shown in Fig. 1 c, under the state of installation, clip, screw, screw rod or other similar objects extend through hole 42a, 42b and 42c.By directly being set, mounting hole is provided with replacement that contact pin is installed also is possible in the air bag skin.
Further, outer cover 50 is attached on the air bag skin.Described outer cover is only shown in Fig. 1 b, 1c and the 1d, and not shown in Fig. 1 a.Among picture first embodiment, outer cover 50 can extend beyond the whole length of air bag, and perhaps it can be made up of a plurality of cover part.In the embodiment shown, the first edge 50a of outer cover 50 similarly utilizes the part of edge joint 16 to be connected with the air bag skin with installation contact pin 40a, 40b, 40c.Outer cover 50 has the outer cover hole.Because Fig. 1 b, 1c and 1d are section drawing, therefore an outer cover hole 52 only is shown.
Can see directly that in Fig. 1 a guiding chamber 36a, 36b and 36c have higher relatively height h.To see that with reference to Fig. 1 c under installing condition, the guiding chamber all demonstrates along the folding line 38 of fold line 37a, 37b on same straight line and 37c, and described fold line 37a, 37b and 37c are parallel to upper rim.The guiding chamber that folding line 38 will be in quiescence is divided into the 36a ' of first, 36b ', 36c ' and second portion 36a ", 36b ", 36c ".Under deployed condition, the guiding chamber is not separated.
Fig. 1 c has shown the section drawing according to the air bag under the installing condition of Fig. 1 b.Curtain type gas bag 10 is installed on the inner structure 70 in roof beam zone of self-propelled vehicle.The air bag skin portion that belongs to protection chamber 32a and 32b is rolled into parcel 33.Lower part 20a, the 20b of upper limb, 20c and 20d directed downwards, and the coiling direction of protection chamber 32a and 32b is set to the direction expansion to the inner structure 70 of self-propelled vehicle.This structure is exactly a known outside type structure.Belong to the rolled-up parcel 33 of the air bag skin portion of guiding chamber 36a, 36b and 36c, extend out from the position of lower part 20a, 20b, 20c and the 20d of upper limb along protection chamber 32a and 32b.The 36a ' of first, the 36b ' of guiding chamber 36a, 36b and 36c and 36c ' are positioned at directly and rolled-up parcel 33 position adjacent.Along fold line 37a, 37b and 37c, guiding chamber 36a, 36b and 36c are about 180 ° of folding line bent around (what show in Fig. 1 c is the folding line 38 of the first guiding chamber 36a), thus the second portion 36a of guiding chamber ", 36b " and 36c " separate with its 36a ' of first, 36b ' and 36c ' separately by folding line 38.Therefore, the 36a ' of first, 36b ' and the 36c ' of guiding chamber are positioned at second portion 36a ", 36b " and 36c " and rolled-up parcel 33 between.Shown in present embodiment in, upper part 18a, the 18b of upper limb and 18c be directed downwards fully.Can be readily seen that by using folding line in each guiding chamber, guiding chamber 36a, 36b and 36c are can be than the circumference of rolled-up parcel 33 higher and do not lose guiding chamber function simultaneously.
Also can see from Fig. 1 c, each hole 42a, 42b, the 42c of contact pin are installed, and screw 72 or other similar articles that each hole of outer cover or a plurality of outer covers (only having shown hole 42a and 52 among Fig. 1 c) is extended out from self-propelled vehicle inner structure 70 are fixed, so that outer cover 50 fully surrounds the air bag skin, rolled-up parcel 33 and guiding chamber 36a, 36b, 36c.
When air generator 60 is triggered and gas when being filled to air chamber 30, outer cover 50 (for example along the set break line that is not shown) breaks, and curtain type gas bag is expanded to the state shown in Fig. 1 d.
Fig. 2 a and 2c show the second embodiment of the present invention in the expression mode of Fig. 1 a and 1c.The difference of second embodiment and first embodiment is, be positioned at the zone of guiding chamber 36a, 36b and 36c as installation contact pin 40a, the 40b of installation component and 40c, and by independent contact pin seam 44a, 44b and 44c will install contact pin 40a, 40b and 40c is fixed on the air bag skin.These contact pin seams 44a, 44b and 44c also necessarily make two side 12 and 14 be connected to each other.These functions that contact pin are installed and geometry are identical with relevant first embodiment's described above.It is emphasized that in this embodiment that has the installation component that shows among the installation component that shows and second embodiment simultaneously in first embodiment also is possible.Contact pin seam 44a, 44b and 44c also can be used to connect the first edge 50a of outer cover 50.
Fig. 3 shows the 3rd embodiment.Here shown single guiding chamber 36, thereby upper limb 18 do not have zig-zag.Therefore, upper limb 18 is corresponding to upper part 18a, 18b and the 18c of the upper limb of two initial embodiment.Except this point, this 3rd embodiment strictly turns round as second embodiment, and along the section drawing of Fig. 3 C-C line to similar along the section drawing of Fig. 2 aB-B line.Here the height h that guides chamber 36 is by the distance regulation between contact pin seam 44a, 44b, 44c and the upper limb 18.
In the above-described embodiments, outer cover 50 and installation contact pin 40 are independent parts, and normally are the sections (cuttings) that fabric is made into.Contact pin-the outer cover part 80 that it should be noted that use one as shown in Figure 4 also is possible, and usually is preferred.Contact pin-the outer cover part 80 of one is section (cutting) (being made by fabric usually) like this, and it has the hole respectively at relative two ends, promptly is hole 42a and the outer cover hole 52 that contact pin 40 is installed.This contact pin-outer cover part 80 attached on the air bag skin, for example passes through the described contact pin seam of the second and the 3rd embodiment attached on the air bag skin by seam.Figure 4 illustrates the position P of this seam.In the time of on being attached to the air bag skin, this seam is divided into contact pin-outer cover part 80 installs contact pin 40 and outer cover 50.
Claims (7)
1. curtain type gas bag that is installed in the roof beam zone of self-propelled vehicle; described curtain type gas bag (10) comprises the air bag skin; described air bag leatherware has two sidewalls (12; 14); described two sidewalls are connected to each other and seal air chamber (30) along fringe region; described air chamber comprises at least one protection zone (protection chamber 32a; 32b) with at least one guiding chamber (36; 36a; 36b; 36c); flow and are communicated with and described guiding chamber is arranged in the upper part (18 of described fringe region in described guiding chamber and described protection zone; 18a; 18b; 18c) and between the described protection zone; described guiding chamber (36 under the installing condition of described curtain type gas bag; 36a; 36b; between the inner structure (70) of described protection zone and self-propelled vehicle, be expandable 36c); described guiding chamber (36 under the quiescence of described curtain type gas bag (10); 36a; 36b; 36c) adjoining with the parcel (33) that roll and/or folding of described protection zone
It is characterized in that under the quiescence of described curtain type gas bag (10), the air bag skin of guiding chamber (36,36a, 36b, 36c) shows at least one folding line (38), (36,36a, 36b, 36c) under static state are bent so that described guiding chamber.
2. curtain type gas bag as claimed in claim 1 is characterized in that, the circumference height of the parcel (33) that roll and/or folding of the described protection zone of aspect ratio of described guiding chamber (36,36a, 36b, 36c).
3. curtain type gas bag as claimed in claim 1 or 2; it is characterized in that; under the installing condition of curtain type gas bag (10), the described folding line (38) of described guiding chamber (36,36a, 36b, 36c) is positioned at the side of sensing interior of motor vehicles direction of the described parcel (33) of described protection zone.
4. curtain type gas bag as claimed in claim 3 is characterized in that, a folding line (38) accurately is set, and makes upper part (18,18a, 18b, the 18c) directed downwards of fringe region of described guiding chamber (36,36a, 36b, 36c).
5. each described curtain type gas bag in the claim as described above, it is characterized in that, extend along the whole length of described curtain type gas bag (10) described guiding chamber (36), thereby described at least one folding line (38) also extends along the whole length of described curtain type gas bag (10).
6. as each described curtain type gas bag in the claim 1 to 4, it is characterized in that having two guiding chambers (36a, 36b, 36c) at least.
7. each described curtain type gas bag in the claim as described above; it is characterized in that; have at least one contact pin (40a, 40b, 40c) is installed; described installation contact pin (40a, 40b, 40c) is connected to the inwall of the inner structure towards described self-propelled vehicle (70) of described air bag skin, and in the transitional region in the zone of described guiding chamber or between described guiding chamber and described protection zone.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009033375.4 | 2009-07-16 | ||
| DE102009033375.4A DE102009033375B4 (en) | 2009-07-16 | 2009-07-16 | Curtain airbag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101954896A true CN101954896A (en) | 2011-01-26 |
| CN101954896B CN101954896B (en) | 2013-05-01 |
Family
ID=43482571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102260185A Active CN101954896B (en) | 2009-07-16 | 2010-07-06 | Curtain type air bag |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101954896B (en) |
| DE (1) | DE102009033375B4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054280A (en) * | 2016-01-19 | 2017-08-18 | 福特全球技术公司 | Side curtain airbag air bag |
| CN115210115A (en) * | 2020-02-26 | 2022-10-18 | 奥托立夫开发公司 | Side airbag device and method for manufacturing airbag module |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009041335B4 (en) * | 2009-09-15 | 2015-04-09 | Autoliv Development Ab | airbag device |
| US9156427B2 (en) * | 2014-01-08 | 2015-10-13 | Autoliv Asp, Inc. | Cost-effective use of one-piece woven fabric for curtain airbags |
| DE102017210660A1 (en) | 2017-06-23 | 2018-12-27 | Joyson Safety Systems Germany Gmbh | An airbag assembly for a vehicle occupant restraint system and method of manufacturing an airbag assembly |
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| JP2000168483A (en) * | 1998-12-01 | 2000-06-20 | Toyota Motor Corp | Head part protecting air bag device |
| US20030188979A1 (en) * | 2002-04-09 | 2003-10-09 | Davin Saderholm | Shrink wrap for inflatable curtain package |
| US6830262B2 (en) * | 2002-07-11 | 2004-12-14 | Autoliv Asp, Inc. | Inflatable airbag deployment guide |
| CN2717769Y (en) * | 2003-02-20 | 2005-08-17 | 日产自动车株式会社 | Air bag device |
| CN101208223A (en) * | 2005-03-11 | 2008-06-25 | 奥托立夫开发公司 | Curtain airbag and vehicle |
| DE102006061968A1 (en) * | 2006-12-21 | 2008-07-03 | Autoliv Development Ab | Curtain airbag |
| CN101410276A (en) * | 2006-06-07 | 2009-04-15 | 高田-彼得里公开股份有限公司 | Airbag device for a motor vehicle |
Family Cites Families (4)
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| US116947A (en) | 1871-07-11 | Improvement in sewing-machines for boots and shoes | ||
| US6758490B2 (en) * | 2001-04-25 | 2004-07-06 | Autoliv Asp, Inc. | Apparatus and method for inflatable combination curtain fold |
| US7163232B2 (en) * | 2001-11-26 | 2007-01-16 | Nihon Plast Co., Ltd. | Curtain airbag and its folding method and system |
| US7185913B2 (en) * | 2002-11-22 | 2007-03-06 | Trw Vehicle Safety Systems Inc. | Inflatable windshield curtain |
-
2009
- 2009-07-16 DE DE102009033375.4A patent/DE102009033375B4/en active Active
-
2010
- 2010-07-06 CN CN2010102260185A patent/CN101954896B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000168483A (en) * | 1998-12-01 | 2000-06-20 | Toyota Motor Corp | Head part protecting air bag device |
| US20030188979A1 (en) * | 2002-04-09 | 2003-10-09 | Davin Saderholm | Shrink wrap for inflatable curtain package |
| US6830262B2 (en) * | 2002-07-11 | 2004-12-14 | Autoliv Asp, Inc. | Inflatable airbag deployment guide |
| CN2717769Y (en) * | 2003-02-20 | 2005-08-17 | 日产自动车株式会社 | Air bag device |
| CN101208223A (en) * | 2005-03-11 | 2008-06-25 | 奥托立夫开发公司 | Curtain airbag and vehicle |
| CN101410276A (en) * | 2006-06-07 | 2009-04-15 | 高田-彼得里公开股份有限公司 | Airbag device for a motor vehicle |
| DE102006061968A1 (en) * | 2006-12-21 | 2008-07-03 | Autoliv Development Ab | Curtain airbag |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054280A (en) * | 2016-01-19 | 2017-08-18 | 福特全球技术公司 | Side curtain airbag air bag |
| CN115210115A (en) * | 2020-02-26 | 2022-10-18 | 奥托立夫开发公司 | Side airbag device and method for manufacturing airbag module |
| CN115210115B (en) * | 2020-02-26 | 2023-09-19 | 奥托立夫开发公司 | Side airbag device and method for manufacturing airbag module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101954896B (en) | 2013-05-01 |
| DE102009033375A1 (en) | 2011-03-03 |
| DE102009033375B4 (en) | 2019-04-25 |
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