CN104828008B - A kind of air bag with drawstring and its processing method - Google Patents
A kind of air bag with drawstring and its processing method Download PDFInfo
- Publication number
- CN104828008B CN104828008B CN201510113852.6A CN201510113852A CN104828008B CN 104828008 B CN104828008 B CN 104828008B CN 201510113852 A CN201510113852 A CN 201510113852A CN 104828008 B CN104828008 B CN 104828008B
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- Prior art keywords
- drawstring
- film
- fabric
- air bag
- silica gel
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- 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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- 238000003672 processing method Methods 0.000 title claims description 9
- 239000004744 fabric Substances 0.000 claims abstract description 112
- 239000010408 film Substances 0.000 claims abstract description 81
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000741 silica gel Substances 0.000 claims abstract description 39
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 39
- 108010025899 gelatin film Proteins 0.000 claims abstract description 12
- 239000010409 thin film Substances 0.000 claims abstract description 11
- 238000004026 adhesive bonding Methods 0.000 claims description 15
- 238000012805 post-processing Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 238000009958 sewing Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000002775 capsule Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920004933 Terylene® Polymers 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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
-
- 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
- B60R21/18—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags the inflatable member formed as a belt or harness or combined with a belt or harness arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The present invention relates to a kind of air bag with drawstring, drawstring is combined using fabric drawstring and film drawstring, film drawstring is placed between two fabrics and bonded with two fabric drawstrings, length of the film drawstring between two fabric drawstrings is 5~10cm, the length of film drawstring and fabric stick portion is 5cm~10cm, film drawstring uses organic silica gel film, the thickness of film is 0.3~0.7mm, thin film strength is 100~160N/cm, elongation is 200~400%, and it is the combination drawstring that 40~120N/cm, elongation are 100~200% that can obtain intensity.The invention further relates to the manufacture method of the air bag with the combination drawstring.
Description
Technical field
The present invention relates to a kind of air bag, more particularly, to a kind of air bag with drawstring, and its processing method.
Background technology
At present, a large amount of gases for producing are rushed to air bag sewing position when part air bag is for buffer gas generator explosion
Power is hit, using drawstring.Drawstring is mainly cut and sewed on air bag using fabric.Because drawstring is fabric, its elastic extension
Low, Young's modulus is big, it is not easy to stretcher strain, so when air bag explosion, under the impact of a large amount of gases, drawstring and air bag
The pin at other sewing positions of the sewing gentle capsule in position grabs strength and requires especially high.And obtain principle of readjustment, restructuring, consolidation and improvement grab strength approach be improve knit
Warp tension when making, improve post-processing refining temperature and use special material.High warp tension can cause warp thread during weaving
Rise with reed friction aggravation, fluffing rate;Improve post-processing refining temperature and cause cost to improve using special material, be unfavorable for
The inexpensive development trend of air bag.And the present invention mainly uses a kind of new drawstring, during the gas impact that air bag explosion is produced,
Elongation deformation can be produced, part of impact force is offset, weakens a large amount of gases to other seams of the gentle capsule in the sewing position of drawstring and air bag
The destructive power at position processed.
The content of the invention
Generally, the present invention relates to a kind of air bag with drawstring and its processing method.
The drawstring of the air bag with drawstring of the present invention is placed on two using combination fabric drawstring and film drawstring, film drawstring
Bonded between fabric drawstring and with two pieces of fabric drawstrings, combine the tensile break strength of drawstring in 40~120N/cm, stretching is disconnected
Elongation is split 100~200%.If the N/cm of tensile break strength < 40 of overall drawstring, drawstring holds under external force
Easily break, it is impossible to play and be reasonably resistant to a large amount of gases to air bag impulsive force.If the tensile break strength > of overall drawstring
120N/cm, then must use the film of high intensity, while, cost increase very big as the viscosity of the silica gel of adhesive.If drawn
Elongation at break < 100% is stretched, then the elongation strain of drawstring is small, other sewing positions of the gentle capsule in sewing position of drawstring and air bag
Yarn be more easily damaged.If tension fracture elongation rate is in > 200%, combination drawstring elongation strain is excessive, under external force
It is easily deformed, does not have cushioning effect.
In the air bag with drawstring of the present invention, the separation strength of film drawstring and fabric drawstring bonding place is 100~200N.
If separation strength > 200N, the organic silica gel viscosity to jointing material requires high, while causing production cost to rise, applies
Glue will also result in uneven.Such as separation strength < 100N, silica gel thin film and fabric bonding force are too low, and gas is rushed in by air bag
When hitting, film drawstring is easily separated from fabric drawstring.
In the air bag with drawstring of the present invention, film drawstring is preferred to use organic silica gel film, the thickness of film for 0.3~
0.7mm, thin film strength is 100~160N/cm, and tension fracture elongation rate is 200~400%.If the thickness < of film
0.3mm, the tensile break strength < 100N of film, elongation < 200%, the tensile break strength of film drawstring is low, elongation strain
It is small, it is easily destroyed when being impacted by gas in air bag.If the thickness G T.GT.GT 0.7mm of film, the tensile break strength > of film
160N, tension fracture elongation rate > 400%, on the one hand because film thickness is excessive, space-consuming is larger after airbag fold, is not inconsistent
Close the development trend that air bag occupies little space;Material requirements of the still further aspect to film is high, causes cost increase.
In the air bag with drawstring of the present invention, length of the preferred film drawstring between two fabric drawstrings is 5~10cm,
The length of film drawstring and each fabric drawstring stick portion is in 5cm~10cm.If film drawstring two pieces of fabric drawstrings it
Between length < 5cm, film drawstring elongation deformation it is too small.If length > of the film drawstring between two pieces of fabric drawstrings
10cm, film drawstring elongation deformation is excessive, is unfavorable for percussion of a large amount of gases to air bag during buffer air bag explosion.Film is drawn
The length of band and each fabric drawstring stick portion is in 5cm~10cm, to ensure to obtain foot between film drawstring and fabric drawstring
Enough bonding strengths.
In the air bag with drawstring of the present invention, film drawstring and fabric drawstring stick portion are preferred to use organic silicone adhesive
Close, the viscosity of organic silica gel is 20000~60000mPa.S.If the mPa.S of viscosity > 60000 of organic silica gel, on the one hand have
The cost increase of machine silica gel, causes gluing uneven while viscosity is excessive.If the mPa.S of viscosity < 20000 of organic silica gel,
Then viscosity is too low, and the bonding force of film drawstring and fabric drawstring is smaller, and film drawstring easily departs from from air bag fabric.
In the air bag with drawstring of the present invention, the density of preferably described air bag fabric is 41~60 pieces/inch, long filament
Fineness is 350dtex~700dtex, and the long filament is Tynex or polyester filament.Fabric is not particularly limited, gluing and non-painting
Glue surface material may be used to the present invention.
Another object of the present invention is to provide a kind of processing method of the air bag of novel belt drawstring, the processing method bag
Include:Film drawstring is bonded between two fabric drawstrings combination drawstring is made;The combination drawstring and air bag are sutured;And
Carry out post processing sizing.In a preferred embodiment, in described film drawstring is bonded between two fabric drawstrings be made group
In the step of closing drawstring, 10~20m/min of application rate;The post processing fixating shape step that carries out is included in after gluing using hot pressing
Machine is post-processed, and the temperature of hot press is 150~190 DEG C, and the pressure time is 6~10min, and pressure is 0.02~0.1MPa.
If application rate < 10m/min, operating efficiency is influenceed.Because at present using organic silica gel is applied by hand, if speed >
20m/min, can cause silica gel addition not in time, influence gluing quality.The purpose of hot press be under certain condition, silica gel is thin
Film and fabric are effectively bonded together.If 150 DEG C of the temperature < of hot press, time < 6min, handed over inside organic silica gel
Connection agent is not sufficiently reacted, the poor adhesion between fabric and silica gel thin film.If 190 DEG C of the temperature > of hot press, time
> 10min, fabric is more in the inscribed received heat of hot press, and one side fabric turns to be yellow, is hardened, and another aspect fabric physical property is deteriorated.
Pressure is 0.02~0.1MPa, if the MPa of pressure < 0.02, insufficient contact between fabric and silica gel thin film, bonding force
It is small.If pressure > 0.1MPa, pressure is excessive, organic silica gel can penetrate into the other side of fabric, film drawstring and fabric
Drawstring is hardened, and causes stress concentration at film drawstring and fabric drawstring bond edge, is easily damaged.
Brief description of the drawings:
Fig. 1 is the structural representation of the combination drawstring of the air bag with drawstring of the present invention.
Embodiment
The following examples are only used to illustrate the invention, and limitation of the present invention should not be interpreted as in any way.
As shown in figure 1, the combination drawstring 10 of the air bag with drawstring of the present invention includes two fabric drawstrings 1, is bonded in two
Film drawstring 2 between individual fabric drawstring 1, and the stick portion 3 between fabric drawstring and film drawstring.
For simplicity, do not showed that in figure and combine the air bag that drawstring links together with described.But the technology of this area
Personnel know, can realize the connection using any known technology, are such as attached using sewing.
The physical property being explained in more detail by following examples and comparative example in the present invention, embodiment is surveyed by following method
It is fixed.
Separation strength
With reference to ISO 13934 method of testing, the silica gel thin film peeled away and fabric are placed on to the upper and lower jaws of tensilometer
In.Draw speed:200mm/min, jaws distance:100mm, the maximum, force that record stripping process is produced.
Silica gel thin film thickness
Tested according to the methods of ISO 5084.Thickness gauge pressure foot diameter 10.5mm, pressure are 1KPa.
Tensile break strength-film, fabric
Tested according to the testing standard of ISO 13934-1 tensile strengths.Specific method is, the handle on Tensile Tester
5cm × 30cm sample clips to tensile strength and tested on special device, and the chuck spacing of Tensile Tester is 20cm, with
20cm/min speed is tested.
Embodiment 1
It is 136 for 35Odtex, monofilament radical that fabric drawstring, which uses total fiber number with fabric, section is circular polyamide fibre 66
Raw yarn, tensile break strength is 8.0cN/dtex, and tension fracture elongation rate is 21.5% non-gluing fabric, the weft density of fabric
Spend for 60 pieces/inch.The thickness of film drawstring is 0.3mm, and tensile break strength is 100N/cm, and tension fracture elongation rate is
400% organic silica gel film.The viscosity of organic silica gel is 50000mPa.S, and application rate is 20mm/min, film drawstring and face
It is 60g/m to expect the glue-spread between drawstring2, length of the film drawstring between fabric drawstring is 5cm, film drawstring and fabric drawstring
Unilateral bond length is 5cm, and hot press temperature is 150 DEG C, and processing time is 6min, and pressure is 0.05MPa.Evaluate the material
Characteristic, and be shown in Table 1.
Embodiment 2
It is 136 for 47Odtex, monofilament radical that fabric drawstring, which uses total fiber number with fabric, section is circular polyamide fibre 66
Raw yarn, tensile break strength is 8.3cN/dtex, and tension fracture elongation rate is 21.5% non-gluing fabric, the weft density of fabric
Spend for 46 pieces/inch.The thickness of organic silica gel film drawstring is 0.4mm, and tensile break strength is 120N, tension fracture elongation rate
For 200%.The viscosity of organic silica gel is 40000mPa.S, and application rate is 18mm/min, between film drawstring and fabric drawstring
Glue-spread is 60g/m2, length of the film drawstring between fabric drawstring is the unilateral bonding of 7cm, film drawstring and fabric drawstring
Length is 7cm, and hot press temperature is 160 DEG C, and processing time is 7min, and pressure is 0.03MPa.The characteristic of the material is evaluated, and
It is shown in Table 1.
Embodiment 3
Fabric drawstring uses total fiber number former for the terylene that 550dtex, monofilament radical are 140, section is circle with fabric
Yarn, tensile break strength is 8.0cN/dtex, and tension fracture elongation rate is 21.5% gluing fabric, fabric thread count 46/
Inch, gluing weight 25g/m2.The thickness of organic silica gel film drawstring is 0.4mm, and tensile break strength is 140N/cm, stretching
Elongation at break is 300%.The viscosity of organic silica gel is 32000mPa.S, and application rate is 15mm/min, film drawstring and fabric
Glue-spread between drawstring is 60g/m2, length of the film drawstring between fabric drawstring is 8cm, film drawstring and fabric drawstring
Unilateral bond length is 8cm, and hot press temperature is 190 DEG C, and processing time is 9min, and pressure is 0.07MPa.Evaluate the material
Characteristic, and be shown in Table 1.
Embodiment 4
Fabric drawstring uses total fiber number to be that 105, section is that circular nylon66 fiber is former for 700dtex, monofilament radical with fabric
Yarn, tensile break strength is 9.0cN/dtex, and tension fracture elongation rate is 20.5% non-gluing fabric, fabric thread count 41
Piece/inch.Organic silica gel film drawstring uses 0.6mm, and tensile break strength is 160N/cm, and tension fracture elongation rate is 400%
Film.The viscosity of organic silica gel is 60000mPa.S.Application rate is 10mm/min, between film drawstring and fabric drawstring
Glue-spread is 60g/m2, and length of the film drawstring between fabric drawstring is the unilateral bonding of 9cm, film drawstring and fabric drawstring
Length is 9cm, and hot press temperature is 190 DEG C, and processing time is 8min, and pressure is 0.09MPa.The characteristic of the material is evaluated, and
It is shown in Table 1.
Comparative example 1
It is 136 for 35Odtex, monofilament radical that fabric drawstring, which uses total fiber number with fabric, section is circular polyamide fibre 66
Raw yarn, tensile break strength is 8.0cN/dtex, and tension fracture elongation rate is 21.5% non-gluing fabric, the weft density of fabric
Spend for 60 pieces/inch.The thickness of organic silica gel film drawstring is 0.2mm, and tensile break strength is 80N/cm, tension failure elongation
Rate is 120%.The viscosity of organic silica gel is 50000mPa.S, and application rate is 20mm/min, between film drawstring and fabric drawstring
Glue-spread be 60g/m2, length of the film drawstring between fabric drawstring is the unilateral bonding of 4cm, film drawstring and fabric drawstring
Length is 5cm, and hot press temperature is 200 DEG C, and processing time is 11min, and pressure is 0.05MPa.The characteristic of the material is evaluated, and
It is shown in Table 1.
Comparative example 2
It is 136 for 47Odtex, monofilament radical that fabric drawstring, which uses total fiber number with fabric, section is circular polyamide fibre 66
Raw yarn, tensile break strength is 8.3cN/dtex, and tension fracture elongation rate is 21.5% non-gluing fabric, the weft density of fabric
Spend for 46 pieces/inch.The thickness of organic silica gel film drawstring is 0.8mm, and tensile break strength is 170N/cm, and tension failure is stretched
Long rate is 200%.The viscosity of organic silica gel is 70000mPa.S, and application rate is 18mm/min, film drawstring and fabric drawstring it
Between glue-spread be 60g/m2, length of the film drawstring between fabric drawstring is that 7cm, film drawstring and fabric drawstring are unilateral
Bond length is 12cm, and hot press temperature is 160 DEG C, and processing time is 7min, and pressure is 0.03MPa.Evaluate the spy of the material
Property, and be shown in Table 1.
Comparative example 3
Fabric drawstring uses total fiber number former for the terylene that 550dtex, monofilament radical are 140, section is circle with fabric
Yarn, tensile break strength is 8.0cN/dtex, and tension fracture elongation rate is 21.5% gluing fabric, fabric thread count 46
Piece/inch, gluing weight be 25g/m2.The thickness of organic silica gel film drawstring is 0.4mm, and tensile break strength is 140N/cm,
Tension fracture elongation rate is 300%.The viscosity of organic silica gel is 32000mPa.S, and application rate is 15mm/min, film drawstring and
Glue-spread between fabric drawstring is 60g/m2, length of the film drawstring between fabric drawstring is 8cm, film drawstring and fabric
The unilateral bond length of drawstring is 8cm, and hot press temperature is 130 DEG C, and processing time is 5min, and pressure is 0.07MPa.Evaluating should
The characteristic of material, and be shown in Table 1.
Comparative example 4
Fabric drawstring fabric uses total fiber number to be that 105, section is circular nylon raw yarn for 700dtex, monofilament radical, draws
Fracture strength is stretched for 9.0cN/dtex, and tension fracture elongation rate is 20.5% non-gluing fabric, fabric thread count is 41/
Inch.The thickness of organic silica gel film drawstring is 0.6mm, and tensile break strength is 160N/cm, and tension fracture elongation rate is
400%.The viscosity of organic silica gel is 16000mPa.S, and application rate is 10mm/min, the glue-spread between silica gel thin film and fabric
For 25g/m2, length of the film drawstring between fabric drawstring is 9cm, and film drawstring and the unilateral bond length of fabric drawstring are
9cm, hot press temperature is 190 DEG C, and processing time is 10min, and pressure is 0.12MPa.The characteristic of the material is evaluated, and is shown in table
In 1.
Table 1
"○" represents that operation possibility is good.
As shown in Table 1:Combined using fabric drawstring and film drawstring, film drawstring is placed between two fabric drawstrings simultaneously
With two fabric drawstring bondings, length of the film drawstring between two fabric drawstrings is 5~10cm, film drawstring and fabric
The length of drawstring stick portion is 5cm~10cm, and film drawstring uses organic silica gel film, the thickness of film for 0.3~
0.7mm, thin film strength is 100~160N/cm, and elongation is 200~400%, can obtain combining the intensity of drawstring 40~
120N/cm, excellent properties of the elongation 100~200%.
Claims (6)
1. a kind of air bag with drawstring, it is characterized in that:Using combination fabric drawstring and film drawstring, film drawstring is placed on two faces
Expect between drawstring and and the bonding of two fabric drawstrings, length of the film drawstring between described two fabric drawstrings is 5~
The length of 10cm, the film drawstring and each fabric drawstring stick portion is 5cm~10cm, the combination drawstring
Tensile break strength is 40~120N/cm, and tension fracture elongation rate is 100~200%, and the film drawstring and the fabric are drawn
Band bonding place separation strength is 100~200N.
2. the air bag according to claim 1 with drawstring, it is characterized in that:The film drawstring uses organic silica gel film,
The thickness of film is 0.3~0.7mm, and thin film strength is 100~160N/cm, and elongation is 200~400%.
3. the air bag according to claim 1 with drawstring, it is characterized in that:Film drawstring and fabric drawstring stick portion are used
Organic silica gel is bonded, and the viscosity of organic silica gel is 20000~60000mPa.S.
4. the air bag according to claim 1 with drawstring, it is characterized in that:The density for the fabric that the fabric drawstring is used for
41~60 pieces/inch, the fineness of long filament is 350dtex~700dtex, and the long filament is Tynex or polyester filament.
5. a kind of processing method of air bag with drawstring according to claim any one of 1-4, the processing method includes:
Film drawstring is bonded between two fabric drawstrings combination drawstring is made, wherein the film drawstring is drawn in described two fabrics
Length between band is 5~10cm, the length of the film drawstring and each fabric drawstring stick portion for 5cm~
10cm;The combination drawstring and air bag are sutured;And carry out post processing sizing.
6. the processing method of the air bag according to claim 5 with drawstring, it is characterized in that:Film drawstring is bonded described
In the step of combination drawstring is made between two fabric drawstrings, application rate is 10~20m/min;It is fixed that the progress is post-processed
Type step is included in after gluing to be post-processed using hot press, and the temperature of hot press is 150~190 DEG C, and the pressure time is 6~
10min, pressure is 0.02~0.1MPa.
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JP6722817B2 (en) * | 2017-03-16 | 2020-07-15 | 本田技研工業株式会社 | Occupant protection device |
CN110936916A (en) * | 2019-12-19 | 2020-03-31 | 江苏惠太汽车科技有限公司 | One shot forming driver air bag |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1771850A (en) * | 2004-02-18 | 2006-05-17 | 因维斯塔技术有限公司 | Fabric seams formed by radiation welding method |
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US6315324B1 (en) * | 2000-04-14 | 2001-11-13 | Milliken & Company | Air bag tether construction |
US6733037B1 (en) * | 2000-11-13 | 2004-05-11 | Milliken & Company | Multi-segment air bag tether construction |
JP2002370597A (en) * | 2001-06-13 | 2002-12-24 | Asahi Kasei Corp | Air bag |
KR20050076028A (en) * | 2004-01-19 | 2005-07-26 | 현대모비스 주식회사 | Tether structure for an airbag |
US20100295282A1 (en) * | 2009-05-21 | 2010-11-25 | Hyundai Motor Company | Seat with side airbag for vehicles |
EP2520469B1 (en) * | 2009-12-30 | 2014-05-07 | Kolon Industries, Inc. | Air bag cushion, and system containing same |
US10801134B2 (en) * | 2012-02-10 | 2020-10-13 | Php Fibers Gmbh | Ribbon yarn |
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CN1771850A (en) * | 2004-02-18 | 2006-05-17 | 因维斯塔技术有限公司 | Fabric seams formed by radiation welding method |
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