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Design method of one-step molded gas bag, and one-step molded safe gas bag

A design method and technology for airbags, which are applied to vehicle safety arrangements, pedestrian/occupant safety arrangements, fabrics, etc., can solve problems such as inability to carry out industrialized production, large investment in production equipment and raw materials, and cumbersome and complicated weaving and processing processes. The effect of gas barrier properties, improved breaking strength and good damage resistance

Inactive Publication Date: 2012-07-25
HMT XIAMEN NEW TECHN MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sewn airbag is made by superimposing and sewing two pieces of fabrics cut into various shapes, while the fully formed airbag is directly formed on the loom by using the processing principle of double-layer fabric, and the middle part is a hollow made of double-layer fabric. The body of the bag is used to store the working air, surrounded by a single-layer fabric edge banding, so that the middle double-layer fabric forms a closed air bag through the surrounding edge banding, because the fully formed air bag overcomes the shortcomings of the sewn air bag , is the development direction of airbag fabrics, but its production equipment and raw materials are heavily invested, the entire weaving process is cumbersome and complicated, and the production cost cannot be effectively reduced, and industrial production cannot be carried out in China.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Design method of one-step molded gas bag, and one-step molded safe gas bag
  • Design method of one-step molded gas bag, and one-step molded safe gas bag
  • Design method of one-step molded gas bag, and one-step molded safe gas bag

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0026] Concrete embodiment: following examples all carry out under following raw material and weaving process condition:

[0027] Raw materials: Select high-strength nylon industrial filaments with warp and weft yarn numbers of 470Dtex, single strength of 7-9CN / Dtex, and elongation at break of 18-24%;

[0028] Weaving process: Jacquard air-jet loom is used for weaving. The warp density on the upper machine is 44 threads / cm, the weft density is 38 threads / cm, and the tension on the upper machine is 110CN / loom.

Embodiment 1

[0029] Embodiment 1: airbag bag body 1 adopts figure 1 The shown double layer plain weave, airbag double edge banding 2 adopts figure 2 , 3 For any one of the double-layer plain weave stitches, the width of the edge banding is 3 mm, and the edge banding of the airbag and the cutting line area 4 and the border area 5 between adjacent airbags are separately woven with a double-layer weave and a single-layer weave.

[0030] During the weaving process, when the edge banding of the airbag and the cutting line area 4 and the border area 5 between adjacent airbags are woven with double-layer weaving, its warp and weft density is basically consistent with that of the airbag body 1, and the warp openings in the entire width direction are clear, and the weaving The mouth is parallel, which is good for beating up and the surface of the cloth is smooth and smooth, and the appearance effect is good. When single-layer weaving is used, the latitude and longitude density of the edge bandin...

Embodiment 2

[0032] Embodiment 2: Airbag bag body 1 adopts figure 1 Double-layer plain weave, airbag edge banding and cutting line area 4 and the junction area 5 between the connected airbags adopt double-layer plain weave or other double-layer fabric weaves with joints, and airbag double edge banding 2 adopts figure 2 , 3 Any one of the two-layer plain weave joints is the surface warp sinking and inner weft jointing ( figure 2 ) or inside warp lifting and table weft connection ( image 3 ), and the edge widths are 3mm and 1mm respectively for weaving.

[0033]The airbag fabric obtained by designing the width of the above-mentioned airbag edge banding was tested for the relevant performance of the airbag edge banding, and the test results are shown in Table 1.

[0034] Table 1 Embodiment 2 adopts the comparative results of different edge banding widths

[0035]

[0036] It can be seen from the above table that when the airbag edge is used with a large edge width, when the fabric s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a design method of a one-step molded gas bag, wherein the gas bag is designed to be weaved by a one-step molded gas bag fabric; the weave structure of a gas bag body part adopts a double-layer plain base weave; sealing edges of the gas bag form a double-layer plain tying weave by a surface warp stitching method and an inner warp stitching method; the sealing edges of the gas bag adopt a double-sealing-edge design; each sealing edge is independently woven. The invention also discloses the one-step molded gas bag designed by the design method. After the technical scheme is adopted, the design method is suitable for weaving the one-step molded gas bag fabric with a square shape, a polygonal shape, a round shape and other mixed curve pattern shape by the technical design of a sealing edge weave, the sealing edge number, widths and area weave layouts of the one-step molded gas bag fabric integrally woven by a large patterning device, and enables the one-step molded gas bag fabric to have good gas resistance, good anti-damaging performance and good weaving performance.

Description

technical field [0001] The invention belongs to the field of airbags, and in particular relates to a design method of a one-time forming airbag and a one-time forming safety airbag. Background technique [0002] Airbag devices for automobiles play an important role in saving the lives of drivers and passengers, and have been widely used at home and abroad. Especially in many developed countries, legislation has stipulated that front row drivers and passengers must use seat belts and safety airbag devices. With the upgrading of the development of the airbag device, as an important part of the airbag device, the airbag has also developed from a coated and sewn type to a non-coated and fully formed type. The sewn airbag is made by superimposing and sewing two pieces of fabrics cut into various shapes, while the fully formed airbag is directly formed on the loom by using the processing principle of double-layer fabric, and the middle part is a hollow made of double-layer fabric....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B60R21/231D03D13/00
Inventor 李新军王向中王银海
Owner HMT XIAMEN NEW TECHN MATERIALS
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