CN104250869A - Buffering seal structure of one-piece-woven fabric - Google Patents
Buffering seal structure of one-piece-woven fabric Download PDFInfo
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- CN104250869A CN104250869A CN201410448121.2A CN201410448121A CN104250869A CN 104250869 A CN104250869 A CN 104250869A CN 201410448121 A CN201410448121 A CN 201410448121A CN 104250869 A CN104250869 A CN 104250869A
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- seam
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- knot
- single line
- seal structure
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Abstract
The invention relates to the field of one-piece-woven fabrics, in particular to a buffering seal structure of a one-piece-woven fabric. The buffering seal structure is applicable to automobile air bags. Due to the fact that seal seams of the one-piece-woven fabrics are uniform and firm and difficult for impact airflow to break through, weak portions at junctions of an air cavity and the seal seams always become breakthrough ports for impact airflows so as to result in breakage and failure. Single-thread seams are additionally arranged inside the junctions of the air cavity and the seal seams (multi-thread seams); on the one hand, weaving points of the single-thread seams are larger in elastic tensile deformation to absorb certain energy and buffer the impact airflows; on the other hand, leading peaks (airflow portions largest in impact force) of the impact airflows can be leaked and released through the single-thread seams to greatly cut off impact energy, so that breakage and failure can be avoided. Therefore, the buffering seal structure of the one-piece-woven fabric has the advantages of capability of buffering the impact airflows and effectiveness in sealing.
Description
Technical field
The present invention relates to inflation fabric arts, be applicable to the air bag of automobile, inflation fabric of the present invention adopts one-shaping technique manufacture, is often called one-shot forming inflation fabric or one-body molded inflation fabric.The present invention be more particularly directed to one-shot forming inflation fabric sealing crack structure, particularly relate to the cushion seal structure of one-shot forming inflation fabric.
Background technology
One-shot forming inflation fabric (one-piece-woven) is the novel fabric that developed recently gets up, weave Dual-layer surface of second order by fabric manufacture equipment simultaneously, and Dual-layer surface of second order be intertwined to form the sealing seam of stitch weave in woven process and make.Tradition cutting sewing type (cut-and-sew), is cut by cut-parts and clustered operation of sewing processes; Its operation is long, and artificial consumption is large, and fabric is subject to needle set thorn when sewing up damages, and after the impact of high pressure draught, sealing seam place easily stretcher strain occurs or fracture causes inefficacy.Compared to cutting sewing type inflation fabric, not only automaticity is high for one-shot forming inflation fabric, and production efficiency is high, and obtained product quality is consistent, and sealing seam is evenly solid, and the probability of stretcher strain or fracture is little, and failure probability is little, and safety coefficient is high.
During gas charging system work, understand at extremely short abrupt release gases at high pressure, form impact air-flow; Because the sealing seam of one-shot forming inflation fabric is evenly solid, impact air-flow is difficult to break through, and air cavity stitches with sealing the breach that the vulnerable area had a common boundary but often becomes impact air-flow, causes fracture failure.
In view of this, a kind of novel hermetically-sealed construction of necessary development, makes up impact air-flow and causes air cavity to stitch the defect of intersection fracture failure with sealing.
Summary of the invention
The object of the invention is to the structure improving the sealing of one-shot forming inflation fabric, cause air cavity to stitch the problem of intersection fracture failure with sealing to solve impact air-flow.For this reason, the present invention proposes the cushion seal structure of a kind of one-shot forming inflation fabric.
In order to reach above-mentioned purpose, technical scheme of the present invention is as follows.
The cushion seal structure of one-shot forming inflation fabric, the upper and lower two-layer surface of second order of described one-shot forming inflation fabric ties seam and the multi-thread knot seam of multi-turn is formed by connecting by organizing single line more; Described one group of single line knot seam by an one thread of multiple upper stratas surface of second order and an one thread of lower floor surface of second order vertical be interwoven knit and a little form; A described circle multi-thread knot seam by the threads of multiple upper stratas surface of second order and the threads of lower floor surface of second order vertical be interwoven knit and a little form, described single line knot seam is in the inner side that described multi-thread knot stitches.
In certain embodiments, many group single line knot seams form multi-turn dotted line ring.
In certain embodiments, many group single line knot seams form multi-turn solid line ring.
In certain embodiments, many group single line knot seams form individual pen dotted line ring.
In certain embodiments, many group single line knot seams form individual pen solid line ring.
In certain embodiments, it is characterized in that, described one group of single line knot seam and the multi-thread knot seam of a described circle are plain weaves, the multi-thread knot of a described circle stitch by 2 one threads of multiple upper stratas surface of second order vertical with 2 one threads of lower floor surface of second order be interwoven knit and a little form.
In certain embodiments, described individual pen dotted line ring or described multi-turn solid line ring to innermost circle multi-thread knot seam between distance be 2mm.
In certain embodiments, the width of described single line knot seam is 0.2 ~ 0.4mm.
The multi-thread knot seam sealing inflation fabric of the present invention, and set up single line knot seam in multi-thread knot seam inner side, when impact air-flow enters in air cavity, be first diffused into single line knot seam and be diffused into multi-thread knot seam again.The structure that the present invention improves, set up single line to tie stitch in the inner side that (multi-thread knot is stitched) intersection is stitched in air cavity and sealing, due to knitting a little only by an one thread of upper strata surface of second order with an one thread of lower floor surface of second order is vertical is interwoven of each single line knot seam, this is knitted and is a little easy to stretching; Due to single line knot seam knit a little itself be worked out by upper and lower two woven faced each one threads, compared to air cavity single layer of woven face and intensive tissue, there is larger gas permeability.In addition, each group single line is tied seam and is a little made up of multiple knitting accordingly, and the number knitted accordingly a little that many group single line knot seams comprise is enough to ensure that a little unlikely destruction by impact air-flow of knitting of arbitrary single line knot seam is ruptured.
When impact air-flow stitches through single line knot, on the one hand, a little will there is larger elastic stretching distortion in knitting of single line knot seam, absorb certain energy, shock absorbing air-flow, on the other hand, the leading peak (the air-flow part that impulsive force is maximum) of impact air-flow will tie seam leakage and release through single line, greatly chop impact energy off.Under the effect of these two aspects, the fabric tissue that (multi-thread knot is stitched) intersection is stitched in air cavity and sealing can not be damaged when making impact air-flow be diffused into sealing seam (multi-thread knot seam), thus avoid fracture failure, reach object of the present invention, make the present invention have the beneficial effect of shock absorbing air-flow effective sealing.
Also by reference to the accompanying drawings the present invention is further elaborated by the mode of embodiment below.
Accompanying drawing explanation
Fig. 1 is single line knot crack structure schematic diagram;
Fig. 2 is multi-thread knot crack structure schematic diagram;
Fig. 3 is the top view of the embodiment of the present invention one;
Fig. 4 is the top view of the embodiment of the present invention three;
Fig. 5 is the top view of the embodiment of the present invention four;
Fig. 6 is the top view of the embodiment of the present invention five.
Description of reference numerals:
10 ... lower floor's warp 11 ... lower weft yarn 12 ... binder weft 20 ... top layer warp yams 21 ... upper weft yarn
30 ... single line knot seam knits a little 31 ... single line knot seam 40 ... multi-thread knot seam knits a little 41 ... multi-thread knot seam
42 ... the multi-thread knot seam of innermost circle.
Detailed description of the invention
Single line knot seam knits a little and multi-thread knot seam is knitted a little
As shown in Figure 1, top layer warp yams 20 and upper weft yarn 21 are woven into plain weave, and form upper strata surface of second order, lower floor's warp 10 and lower weft yarn 11 are woven into plain weave, form lower floor's surface of second order.Interweave while binder weft 12 in a lower floor's surface of second order top layer warp yams 20 and lower floor's warp 10 forms a single line knot seam and knits a little 30.
As shown in Figure 2, top layer warp yams 20 and upper weft yarn 21 are woven into plain weave, and form upper strata surface of second order, lower floor's warp 10 and lower weft yarn 11 are woven into plain weave, form lower floor's surface of second order.Interweave while binder weft 12 in a Liang Gen lower floor surface of second order top layer warp yams 20 and lower floor's warp 10 forms a multi-thread knot seam and knits a little 40.
Test condition
[fracture strength of multi-thread knot seam]
According to ISO 13934-1 standard, on tester for elongation, clip in special clamp head by the test specimens cloth of 350mm × 50mm, the spacing of two clamp head is 200mm, and test speed is 200mm/min.
[the static air permeability of single line knot seam]
According to ISO 9237 standard, tested by static air permeability test instrument, sample cloth test area is 100cm
2, initial pressure is 500P, and with numerical value display on a tester, unit is L/dm to test result
2/ min(is expressed as the gas volume through fabric per minute in unit are).
Embodiment one
The present embodiment, adopt 470dtex polyamide fibre 66 yarn, utilize high-speed air-jet looms to be equipped with large jacquard head, carrying out weaving warp yarns density is 220/dm, and weft count is the one-shot forming inflation fabric of 190/dm.As shown in Figure 3, the present embodiment many groups single line knot seam 31 forms width h and is 0.2mm and diameter is the individual pen solid line ring of 680mm, the multi-thread knot seam 41 of multi-turn forms the sealing seam of the present embodiment, single line knot seam 31 is in the inner side of multi-thread knot seam 41, and be 2mm from the distance d of the multi-thread knot seam of innermost circle, prevent single line from tying seam further and excessive tensile occurs.Performance indications are in table one.
Embodiment two
The present embodiment, adopt 550dtex Polyester Yarns, utilize high-speed air-jet looms to be equipped with large jacquard head, carrying out weaving warp yarns density is 220/dm, and weft count is the one-shot forming inflation fabric of 170/dm.The present embodiment many groups single line knot seam 31 forms width h and is 0.4mm and diameter is the individual pen solid line ring of 680mm, the multi-thread knot seam 41 of multi-turn forms the sealing seam of the present embodiment, single line knot seam 31 is in the inner side of multi-thread knot seam 41, and be 2mm from the distance d of the multi-thread knot seam of innermost circle, prevent single line from tying seam further and excessive tensile occurs.Performance indications are in table one.
Table one
As can be seen from table one, the air permeability of the single line knot seam of embodiment one and embodiment two all arrives 0.5L/dm
2/ more than min, is enough to the leading peak discharging impacting with high pressure air-flow, is unlikely to again to leak.The fracture strength of multi-thread knot seam is all enough to guarantee and is unlikely to be destroyed by impact air-flow.
When impact air-flow is diffused into the single line knot seam 31 of embodiment one or embodiment two, single line knot seam 31 is stretched by impact air-flow but is unlikely to be pulled off, and single line knot seam 31 absorbs a part of impact energy.In addition, the leading peak of impact air-flow will go out discharged from unidirectional knot seam 31, can not damage, thus avoid fracture failure when making impact air-flow be diffused into multi-thread knot seam 41 to the fabric tissue of air cavity and multi-thread knot seam 41 intersection.
Embodiment three
As shown in Figure 4, the difference of the present embodiment is, many groups single line knot seam 31 of the present embodiment forms a dotted line ring.
Embodiment four
As shown in Figure 5, the difference of the present embodiment is, many groups single line knot seam 31 of the present embodiment forms two dotted line rings.
Embodiment five
As shown in Figure 6, the difference of the present embodiment is, many groups single line knot seam 31 of the present embodiment forms two solid line rings.
Above-described embodiment is only for the ease of understanding citing of the present invention, is not limitation of the present invention.The modified amendment that those skilled in the art make on the basis of above-described embodiment and replacement all do not depart from protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (8)
1. the cushion seal structure of one-shot forming inflation fabric, is characterized in that, the upper and lower two-layer surface of second order of described one-shot forming inflation fabric ties seam and the multi-thread knot seam of multi-turn is formed by connecting by organizing single line more; Described one group of single line knot seam by an one thread of multiple upper stratas surface of second order and an one thread of lower floor surface of second order vertical be interwoven knit and a little form; A described circle multi-thread knot seam by the threads of multiple upper stratas surface of second order and the threads of lower floor surface of second order vertical be interwoven knit and a little form, described single line knot seam is in the inner side that described multi-thread knot stitches.
2. the cushion seal structure of one-shot forming inflation fabric according to claim 1, is characterized in that, many group single line knot seams form multi-turn dotted line ring.
3. the cushion seal structure of one-shot forming inflation fabric according to claim 1, is characterized in that, many group single line knot seams form multi-turn solid line ring.
4. the cushion seal structure of one-shot forming inflation fabric according to claim 1, is characterized in that, many group single line knot seams form individual pen dotted line ring.
5. the cushion seal structure of one-shot forming inflation fabric according to claim 1, is characterized in that, many group single line knot seams form individual pen solid line ring.
6. the cushion seal structure of the one-shot forming inflation fabric according to any one of claim 1 to 5, it is characterized in that, described one group of single line knot seam and the multi-thread knot seam of a described circle are plain weaves, the multi-thread knot of a described circle stitch by 2 one threads of multiple upper stratas surface of second order vertical with 2 one threads of lower floor surface of second order be interwoven knit and a little form.
7. the cushion seal structure of the one-shot forming inflation fabric according to claim 4 or 5, is characterized in that, the distance between described individual pen dotted line ring or described multi-turn solid line ring stitch to the multi-thread knot of innermost circle is 2mm.
8. the cushion seal structure of the one-shot forming inflation fabric according to any one of claim 1 to 5, is characterized in that, the width of described single line knot seam is 0.2 ~ 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448121.2A CN104250869B (en) | 2014-09-04 | 2014-09-04 | The cushion seal structure of one-shot forming inflation fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448121.2A CN104250869B (en) | 2014-09-04 | 2014-09-04 | The cushion seal structure of one-shot forming inflation fabric |
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| Publication Number | Publication Date |
|---|---|
| CN104250869A true CN104250869A (en) | 2014-12-31 |
| CN104250869B CN104250869B (en) | 2016-08-24 |
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| CN201410448121.2A Active CN104250869B (en) | 2014-09-04 | 2014-09-04 | The cushion seal structure of one-shot forming inflation fabric |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991249A (en) * | 1975-01-17 | 1976-11-09 | Toray Industries, Inc. | Fabric material for producing woven air bags utilized for protecting riders in vehicles |
| US5011183A (en) * | 1990-06-08 | 1991-04-30 | Stern & Stern Industries, Inc. | Bag, airbag, and method of making the same |
| JPH0648260A (en) * | 1992-07-27 | 1994-02-22 | Toyo Tire & Rubber Co Ltd | Seamless air bag |
| CN1376219A (en) * | 1999-09-24 | 2002-10-23 | 美利肯公司 | Inflatable fabrics comprising basket-woven attachment points between fabric panels |
| KR20040040023A (en) * | 2002-11-06 | 2004-05-12 | 주식회사 코오롱 | An inflatable two-layer fabric |
| CN1643201A (en) * | 2002-03-15 | 2005-07-20 | 丰田纺织株式会社 | Hollow-weave airbag |
| JP2013216213A (en) * | 2012-04-09 | 2013-10-24 | Toyota Boshoku Corp | Hollow-woven airbag |
| CN204080275U (en) * | 2014-09-04 | 2015-01-07 | 华懋（厦门）新材料科技股份有限公司 | The cushion seal structure of one-shot forming inflation fabric |
-
2014
- 2014-09-04 CN CN201410448121.2A patent/CN104250869B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991249A (en) * | 1975-01-17 | 1976-11-09 | Toray Industries, Inc. | Fabric material for producing woven air bags utilized for protecting riders in vehicles |
| US5011183A (en) * | 1990-06-08 | 1991-04-30 | Stern & Stern Industries, Inc. | Bag, airbag, and method of making the same |
| JPH0648260A (en) * | 1992-07-27 | 1994-02-22 | Toyo Tire & Rubber Co Ltd | Seamless air bag |
| CN1376219A (en) * | 1999-09-24 | 2002-10-23 | 美利肯公司 | Inflatable fabrics comprising basket-woven attachment points between fabric panels |
| CN1643201A (en) * | 2002-03-15 | 2005-07-20 | 丰田纺织株式会社 | Hollow-weave airbag |
| KR20040040023A (en) * | 2002-11-06 | 2004-05-12 | 주식회사 코오롱 | An inflatable two-layer fabric |
| JP2013216213A (en) * | 2012-04-09 | 2013-10-24 | Toyota Boshoku Corp | Hollow-woven airbag |
| CN204080275U (en) * | 2014-09-04 | 2015-01-07 | 华懋（厦门）新材料科技股份有限公司 | The cushion seal structure of one-shot forming inflation fabric |
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| Publication number | Publication date |
|---|---|
| CN104250869B (en) | 2016-08-24 |
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