CN104554123A - Knitting molding gasbag - Google Patents
Knitting molding gasbag Download PDFInfo
- Publication number
- CN104554123A CN104554123A CN201510043918.9A CN201510043918A CN104554123A CN 104554123 A CN104554123 A CN 104554123A CN 201510043918 A CN201510043918 A CN 201510043918A CN 104554123 A CN104554123 A CN 104554123A
- Authority
- CN
- China
- Prior art keywords
- airbag
- air bag
- knitting
- section
- gasbag
- 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
-
- 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
-
- 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
- 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
- B60R2021/23533—Inflatable members characterised by their material characterised by the manufacturing process
- B60R2021/23542—Weaving
- B60R2021/23547—Weaving one piece weaving
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention relates to the technical field of automotive passive safety devices, in particular to a knitting molding gasbag comprising a gasbag body. The gasbag body is formed by warp yarn knitting integrally, the section of the yarns is in a special shape, the special-shaped sections of two adjacent yarns are fitted tightly, an outer cavity fixing bag is arranged outside the gasbag body, and warp and weft directional stripes are arranged on the outer cavity fixing bag in the warp and weft directions. Compared with the prior art, the knitting molding gasbag has the advantages that the one-step forming gasbag structure by warp yarn knitting is designed, the manufacture process is simpler, and the production cost is reduced; the section of the yarn is in the special shape, the tightness of the yarns is improved, the gas leakage is controlled after the gasbag is inflated, the outer cavity fixing bag is arranged outside the gasbag body to control the shape of the gasbag body and limit the drawing degree of the fabric of the gasbag body during operation, and the passenger restraint performance can be guaranteed accordingly.
Description
Technical field
The present invention relates to vehicle passive safety device technique field, specifically a kind of knitting shaping air bag.
Background technology
Usually, the airbag method for making of traditional safe automobile air bag is as follows: first, becomes airbag fabric by nylon66 fiber or polyester filament by tatting (woven) plain weave craft woven; Then, then by specific cutting airbag fabric is made cut-parts; Finally, by the mode of sewing, sewing panels is become airbag.
See Fig. 1, common safety air bag cloth precursor is round section 1, and the girth of round section 1 is circumference.Fig. 2 is that common safety air bag launches schematic diagram, and safety air bag 3 is when normally launching, and airbag 4 can protect occupant 5.Fig. 3 is common safety air bag structural representation.Airbag 4 is made up of a main leaf 7 and two lateral plates 6, two lateral plates 6 is respectively equipped with a deflation hole 8.
In recent years, also there is the integral structure OPW airbag of integral weaving, namely obtain the design of one-time formed airbag by the mode of tatting (woven) plain weave.
Tatting is it is essential that by orthogonal one group of warp thread and one group of weft yarn, crisscross according to certain rules on loom.
Knitting is by one or more groups yarn, and cover lopping that loom is gone here and there according to certain rules is each other formed by connecting.Common knit goods is as T-shirt, sweater, underwear etc.
Through the yarn that volume is by a group or several groups of arrangement in parallels, be arranged in respectively on knitting needle, longitudinally braiding forms simultaneously.Laddering and the extensibility of general WARP-KNITTING are less than weft-knitted fabric, and the stability of its structure and profile is better.Common knitted tricot fabric is as mosquito net, curtain etc.
The safety air bag fabric of tatting braiding, processing step is more, and equipment is more complicated.And the equipment investment of tatting integral weaving safety air bag is larger, application is not general, and cost is also higher.The web process of knitting braiding is simple, but is not applied on the airbag fabric of safety air bag.
Compare traditional tatting (woven) plain weave airbag fabric sewing or the design of one-shot forming airbag, the technique of knitting warp one-time formed airbag design is simpler.But meanwhile, also there is the problem of following two in the design of knitting warp one-time formed airbag: 1, knit fabric stretchability is large, and airbag is not easily qualitative after launching.2, between yarn, gap is large, and permeability to air is high, easily leaks gas.
Therefore, need design a kind of can reduce knit fabric stretchability and avoid leak gas knitting shaping air bag.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of can reduce knit fabric stretchability and avoid leak gas knitting shaping air bag.
In order to achieve the above object, the present invention devises a kind of knitting shaping air bag, comprise airbag body, it is characterized in that: airbag body adopts yarn knitting to form and one-body molded through compiling, the precursor cross section of yarn is odd-shaped cross section, fit tightly between the odd-shaped cross section of two adjacent yarns, airbag this externally there is an exocoel fix bag, exocoel is fixed in the radial direction of bag and broadwise and is respectively equipped with radial drawstring and broadwise drawstring.
The girth of described odd-shaped cross section is and 2 of the girth of the round section of odd-shaped cross section same diameter times or more.
Described odd-shaped cross section is non-circular and bending close-shaped of circumference.
The fabric of described airbag body is under the static force of 100N, and tensile property is less than 120%.
Described airbag body, when knitting warp, adopts the mode adding pin or subtract pin to change airbag shape.
It is described that to add pin specific as follows: the yarn of having tied a knot is ticked one and and in addition one yarn tie a knot, increase by 1 pin.
Described to subtract pin specific as follows: hooked together by two strands of yarns, 2 pins are merged into 1 pin, reduces by 1 pin.
The length of described radial drawstring is the radial border length of airbag body, and width is 50 ~ 200mm, and quantity is no less than 1.
The length of described broadwise drawstring is the broadwise border length of airbag body, and width is 50 ~ 200mm, and quantity is no less than 1.
It is that tatting airbag cloth or nonwoven fabrics are made that described exocoel fixes bag.
Described airbag body is the air bag of driver airbag or occupant-side safety airbag or knee airbag or seat airbag or curtain air bag.
The present invention compared with the existing technology, devise the one-shot forming air bag structure of knitting warp, manufacturing process is simpler, reduce productive costs, the precursor Cross section Design of yarn is odd-shaped cross section, improves the tightness degree between yarn, thus the situation of leaking gas after control air bag inflator, an exocoel is set outside airbag and fixes bag, the level of stretch of airbag fabric during to control the shape of airbag and to limit airbag work, thus guarantee the restraint performance of occupant.
Accompanying drawing explanation
Fig. 1 is the safety air bag cloth cutaway view of prior art.
Fig. 2 is that the safety air bag of prior art launches schematic diagram.
Fig. 3 is the safety air bag structural representation of prior art.
Fig. 4 is the schematic diagram one in airbag precursor cross section in embodiments of the invention 1.
Fig. 5 is the schematic diagram two in airbag precursor cross section in embodiments of the invention 1.
Fig. 6 is uniaxially knitting warp structural representation in embodiments of the invention 1.
Fig. 7 is biaxially knitting warp structural representation in embodiments of the invention 1.
Fig. 8 be in embodiments of the invention 1 multiaxis to knitting warp structural representation.
Fig. 9 subtracts needle construction schematic diagram one in embodiments of the invention 1.
Figure 10 subtracts needle construction schematic diagram two in embodiments of the invention 1.
Figure 11 adds needle construction schematic diagram one in embodiments of the invention 1.
Figure 12 adds needle construction schematic diagram two in embodiments of the invention 1.
Figure 13 is airbag functional schematic in embodiments of the invention 1.
Figure 14 is that in embodiments of the invention 1, airbag exocoel fixes bag schematic perspective view.
Figure 15 is that in embodiments of the invention 1, airbag exocoel fixes bag front view.
Figure 16 is that in embodiments of the invention 1, airbag exocoel fixes bag lateral plan.
Figure 17 is that in embodiments of the invention 2, airbag exocoel fixes bag front view.
Figure 18 is that in embodiments of the invention 2, airbag exocoel fixes bag lateral plan.
Detailed description of the invention
Now by reference to the accompanying drawings the present invention is described further.
Embodiment 1
In this example, as shown in Figure 4 and Figure 5, safety air bag cloth precursor cross section is odd-shaped cross section 2, and described odd-shaped cross section 2 is non-circular and bending close-shaped of circumference.The girth of odd-shaped cross section 2 yarn grows up more than 100% than the circumference with diameter.In this enforcement, the tightness degree when odd-shaped cross section 2 of yarn can improve braiding between yarn, controls the situation that airbag body 9 inflates rear gas leakage.For ensureing the permeability to air of airbag body 9, the girth of odd-shaped cross section 2 is required to be and 2 times of the girth of the round section 1 of odd-shaped cross section 2 same diameter or more.
See Fig. 6-8; in the present embodiment; airbag body 9 fabric is the knitting warp structure that tensile property is little; for fabric development length when guarantee airbag body 9 works is restricted; thus guarantee protective value; airbag body 9 fabric of knitting warp structure is under the static force of 100N, and tensile property is less than 120%.
In the present embodiment, airbag body, when carrying out knitting warp, adopts the mode adding pin or subtract pin to change airbag shape, to meet occupant space.See Fig. 9 and Figure 10, subtract stitching suddenly specific as follows: hooked together by two strands of yarns, 2 pins are merged into 1 pin, reduces by 1 pin.By this kind of method, can according to airbag shape, that carries out necessity when needed subtracts needle knitting.
See Figure 11 and Figure 12, add stitching suddenly specific as follows: the yarn of having tied a knot ticked one and tie a knot with one yarn other, increasing by 1 pin.By this kind of method, can according to airbag shape, that carries out necessity when needed adds needle knitting.
Figure 13 is that the safety air bag of the present embodiment launches schematic diagram, and safety air bag 3 airbag body 9 when normal expansion can protect occupant 5.Airbag body 9 in the present embodiment forms and integrated airbag through compiling for adopting yarn knitting, and deflation hole is not mated in the surface of airbag body 9.
Figure 14-16 fixes bag functional schematic for the present embodiment safety air bag exocoel.Overall airbag body 9 has a front contacted with occupant 10 and two sides 11 for supporting.
Have an exocoel outside overall airbag body 9 and fix bag 12, exocoel is fixed bag 12 and is used for controlling the shape of airbag body 1 and limits the level of stretch of airbag fabric when airbag body 1 works.Exocoel is fixed in the radial direction of bag 12 and broadwise and is respectively equipped with radial drawstring 13 and broadwise drawstring 14.
Exocoel fixes the radial drawstring 13 of bag 12 and the length of broadwise drawstring 14 is this place's airbag body 9 radial border length or broadwise border length.
Embodiment 2
See Figure 17-18, in actual applications, according to the shape of airbag body 9, the width of radial drawstring 13 and broadwise drawstring 14 that exocoel fixes bag 12 can within the scope of 50 ~ 200mm, and quantity is no less than 1, can adjust in radial direction or broadwise border length range.
Exocoel fixes bag 12 can adopt conventional tatting airbag cloth, nonwoven fabrics etc.
Overall knitting warp airbag in the present invention can be used for the air bags such as driver airbag, occupant-side safety airbag, knee airbag, seat airbag or curtain air bag.
Claims (10)
1. a knitting shaping air bag, comprise airbag body, it is characterized in that: airbag body (9) adopts yarn knitting to form and one-body molded through compiling, the precursor cross section of yarn is odd-shaped cross section (2), fit tightly between the odd-shaped cross section (2) of two adjacent yarns, there is outside airbag body (9) exocoel and fix bag (12), exocoel is fixed in the radial direction of bag (12) and broadwise and is respectively equipped with radial drawstring (13) and broadwise drawstring (14), the girth of described odd-shaped cross section (2) is and 2 times of the girth of the round section (1) of odd-shaped cross section (2) same diameter or more.
2. a kind of knitting shaping air bag according to claim 1, is characterized in that: described odd-shaped cross section (2) is bending close-shaped of non-circular and circumference.
3. a kind of knitting shaping air bag according to claim 1, is characterized in that: the fabric of described airbag body (9) is under the static force of 100N, and tensile property is less than 120%.
4. a kind of knitting shaping air bag according to claim 1, is characterized in that: described airbag body (9), when knitting warp, adopts the mode adding pin or subtract pin to change airbag shape.
5. a kind of knitting shaping air bag according to claim 4, is characterized in that: described to add pin specific as follows: the yarn of having tied a knot is ticked one and and in addition one yarn tie a knot, increase by 1 pin.
6. a kind of knitting shaping air bag according to claim 4, is characterized in that: described to subtract pin specific as follows: hooked together by two strands of yarns, 2 pins are merged into 1 pin, reduces by 1 pin.
7. a kind of knitting shaping air bag according to claim 1, is characterized in that: the length of described radial drawstring (13) is the radial border length of airbag body (9), and width is 50 ~ 200mm, and quantity is for being no less than 1.
8. a kind of knitting shaping air bag according to claim 1, is characterized in that: the length of described broadwise drawstring (14) is the broadwise border length of airbag body (9), and width is 50 ~ 200mm, and quantity is no less than 1.
9. a kind of knitting shaping air bag according to claim 1, is characterized in that: described exocoel is fixed bag (12) for tatting airbag cloth or nonwoven fabrics and made.
10. a kind of knitting shaping air bag according to claim 1, is characterized in that: the air bag that described airbag body (9) is driver airbag or occupant-side safety airbag or knee airbag or seat airbag or curtain air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043918.9A CN104554123B (en) | 2015-01-28 | 2015-01-28 | A kind of air bag of knitting shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043918.9A CN104554123B (en) | 2015-01-28 | 2015-01-28 | A kind of air bag of knitting shaping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104554123A true CN104554123A (en) | 2015-04-29 |
| CN104554123B CN104554123B (en) | 2017-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510043918.9A Active CN104554123B (en) | 2015-01-28 | 2015-01-28 | A kind of air bag of knitting shaping |
Country Status (1)
| Country | Link |
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| CN (1) | CN104554123B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450051A (en) * | 2022-08-30 | 2022-12-09 | 兰州中科聚润新材料有限公司 | Gas storage bag, preparation method thereof and application thereof in compressed air energy storage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB567378A (en) * | 1943-04-06 | 1945-02-12 | George Frederick Rayner | Gas container and process of making the same |
| FR2156983A5 (en) * | 1971-08-10 | 1973-06-01 | Ichikawa Keori | |
| CN101189375A (en) * | 2005-05-17 | 2008-05-28 | Bst安全纺织品股份有限公司 | Flat woven textile structure |
| CN101336321A (en) * | 2005-12-06 | 2008-12-31 | Nexis纤维股份公司 | Coated woven fabric or knit fabric for a safety air bag |
| CN101365840A (en) * | 2005-12-06 | 2009-02-11 | Nexis纤维股份公司 | Threads, fibres and filaments for weaving without sizing |
| CN204488723U (en) * | 2015-01-28 | 2015-07-22 | 延锋百利得（上海）汽车安全系统有限公司 | A kind of knitting shaping safety air bag |
-
2015
- 2015-01-28 CN CN201510043918.9A patent/CN104554123B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB567378A (en) * | 1943-04-06 | 1945-02-12 | George Frederick Rayner | Gas container and process of making the same |
| FR2156983A5 (en) * | 1971-08-10 | 1973-06-01 | Ichikawa Keori | |
| CN101189375A (en) * | 2005-05-17 | 2008-05-28 | Bst安全纺织品股份有限公司 | Flat woven textile structure |
| CN101336321A (en) * | 2005-12-06 | 2008-12-31 | Nexis纤维股份公司 | Coated woven fabric or knit fabric for a safety air bag |
| CN101365840A (en) * | 2005-12-06 | 2009-02-11 | Nexis纤维股份公司 | Threads, fibres and filaments for weaving without sizing |
| CN204488723U (en) * | 2015-01-28 | 2015-07-22 | 延锋百利得（上海）汽车安全系统有限公司 | A kind of knitting shaping safety air bag |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450051A (en) * | 2022-08-30 | 2022-12-09 | 兰州中科聚润新材料有限公司 | Gas storage bag, preparation method thereof and application thereof in compressed air energy storage |
| CN115450051B (en) * | 2022-08-30 | 2023-12-15 | 兰州中科聚润新材料有限公司 | Gas storage bag, preparation method thereof and application thereof in compressed air energy storage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104554123B (en) | 2017-06-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191217 Address after: 200120 Building 8, No. 88, Shengrong Road, Pudong New Area, Shanghai Co-patentee after: Yanfeng Automobile Intelligent Safety System Co., Ltd. Patentee after: Shanghai Lingang Junsheng automobile safety system Co., Ltd Address before: 201315 No. 426 Pu Pu Road, Cambridge Industrial Zone, Shanghai, Pudong New Area Patentee before: Yanfeng Bailide (Shanghai) Automobile Safety System Co., Ltd. |