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Airbag and airbag apparatus

An airbag and base fabric technology, which is applied in the directions of transportation and packaging, pedestrian/occupant safety arrangement, vehicle safety arrangement, etc., can solve the problem of reduced air tightness of seams, cracked seams, fillers that do not act as hot melt adhesives, etc. problem, to achieve the effect of high air tightness

Inactive Publication Date: 2006-05-03
TAKATA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the airbag of the above-mentioned Japanese Patent Application Laid-Open No. 8-301036, since the inner peripheral side is sewn by the hot-melt adhesive part between the base fabrics, and the seamed part itself does not serve as the filler for the hot-melt adhesive, so when the inside of the airbag When the pressure of the seam increases, the seams will split, causing the seams to be less airtight against each other

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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  • Airbag and airbag apparatus
  • Airbag and airbag apparatus
  • Airbag and airbag apparatus

Examples

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Embodiment Construction

[0018] Embodiments will be described below with reference to the drawings. figure 1 is a front view of the airbag in the embodiment, figure 2 is along figure 1 The sectional view of line II-II in image 3 is a cross-sectional view of the base cloth.

[0019] The airbag 1 is an airbag of a curtain airbag device installed near a roof side sill of an automobile, and deploys downward along the interior side of a door or a pillar of an automobile when inflated.

[0020] The structure of the airbag 1 is as follows: two pieces of base fabrics 2, 2 are overlapped and sewn together by a sewing thread 3, thereby forming a chamber 4 between the base fabrics 2, 2. A gas inlet 5 is provided at one end side of the airbag 1, and an inflator (not shown) is connected to the gas inlet 5. As shown in FIG. Tabs 6 for fastening to roof side rails or A-pillars are provided on the airbag 1 . The airbag 1 is folded into an elongated shape and arranged along a roof side sill. As described above...

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PUM

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Abstract

Provided are an airbag having excellent airtightness of a seamed portion and an airbag device using the same. The structure of the airbag (1) is as follows: two pieces of base fabrics (2, 2) are overlapped and sewn together by sewing thread (3), thereby forming a chamber (4) between the base fabrics (2, 2). One end of the air bag (1) is provided with a gas introduction port (5). A base fabric (2) has a base fabric main body (2a) made of woven fabric and a thermoplastic resin coating layer (2b) formed on one surface of the base fabric main body (2a). When sewing the base cloths (2), the base cloths (2, 2) are overlapped so that the coatings (2b) of the respective base cloths (2) are in contact with each other, and the portion to be sewn is heated and pressurized as necessary to The base fabrics (2, 2) are bonded to each other.

Description

technical field [0001] The present invention relates to an airbag device installed in an automobile or the like and an airbag constituting the airbag device. Background technique [0002] An airbag device installed in an automobile or the like includes an airbag and an inflator for inflating the airbag. In the event of a vehicle collision or the like, the inflator blows out gas, and the airbag is inflated by the gas. [0003] As the airbag, an airbag in which two base fabrics are overlapped and sewn together to form an inflatable chamber between the base fabrics is often used. [0004] In order to improve the airtightness between the seamed parts of the base fabric, a sealant made of silicone resin or the like is applied to the base fabric to act as a filler, but since the sealant takes a long time to dry, the air pocket is reduced. manufacturing efficiency. [0005] Japanese Unexamined Publication No. 8-301036 describes as follows: the two circular base fabrics constitut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/235B60R21/16B60R21/26
CPCB60R21/235B60R2021/23514B60R2021/23576B60R2021/23595
Inventor 辻本庆中泽亘松井义贵
Owner TAKATA CORPORATION