CN102501821B - Air pocket of automobile side airbag and method for folding air pocket - Google Patents

Abstract

The invention discloses an air pocket of an automobile side airbag. The edges of an upper air pocket cloth and a lower air pocket cloth of the air pocket are sewn by sewing threads, an air inlet is arranged at one end of each air pocket cloth, a spacing air cloth pocket for dividing each air pocket cloth into two inflatable areas is arranged in the middle of each of the upper air pocket cloth and the lower air pocket cloth, and a vent hole is arranged on each spacing air cloth pocket. Airflow blown into each air pocket cloth from the corresponding air inlet is blown into one inflatable area and then blown into the other inflatable area through the vent hole, and the air pocket is folded in a certain mode and can be effectively and evenly unfolded when being inflated, so that safety of shoulders and heads of drivers and passengers is ensured. Besides, the unfolding effect of the air pocket is more effectively ensured by the folding mode of the air pocket, and the protection performance of the safety airbag is improved.

Description

A kind of side airbag of automobile airbag and method for folding thereof

Technical field

The present invention relates to safe automobile air bag, relate in particular air bag structure in a kind of side air bag and the method for folding of airbag thereof.

Background technology

Safe automobile air bag is safety component important on automobile, protection driver and crew traffic safety, and in the time that vehicle has an accident, safety air bag can expand in time smoothly, and to launch be very important.In side airbag of automobile, be provided with airbag, airbag is the fabric that uses the fabric of some strength to be cut into given shape instrument to be stitched into design shape, and effect under certain condition makes it the inflating expanded protection occupant that reaches, and reduces the safety device of injury.Principle of work: produce and do the used time at side air bag device, be sewn into the high pressure gas that the airbag of given shape produces by gas generator and be full of expansion, be launched into definite shape and reach protection occupant's effect.

The contour structures of airbag has important impact to the protection effect of launching; air bag structure generally adopts the formed bag shaped structure that is simply stitched together along fabric cutting edge at present; this is simple in structure; make easily; but the effect of inflating expanded airbag is undesirable; the effective protected area in side is difficult to reach designing requirement, thus the effective protection of impact to occupant.

Summary of the invention

Technical matters to be solved by this invention is to realize a kind ofly side air bag to be supportted smoothly to air bag structure and the airbag method for folding thereof of expansion while ensureing to inflate.

To achieve these goals, the technical solution used in the present invention is: a kind of side airbag of automobile airbag, the levels airbag cloth edge of this airbag is by suture and at one end have admission port, in the middle of described levels airbag cloth, be provided with by airbag cloth be separated into two inflation area between trapping cloth bag, between described, trapping cloth bag is provided with air extractor vent, and the air-flow being blown into by admission port is blown into another inflation area through air extractor vent after being blown into an inflation area.

The described inflation area without admission port is blown into air flow line along air extractor vent and is provided with the lignilite that several sews up levels airbag cloth, this inflation area is separated into several strip inflation area arranged side by side, and between each strip inflation area between have an air extractor vent at least on trapping cloth bag.

Between described, trapping cloth bag is provided with three air extractor vents of equidistantly arranging, and between every two air extractor vents, is provided with the lignilite of sewing up levels airbag cloth.

Described strip inflation area is connected in airbag end.

Described admission port edge is provided with fastening line.

Described airbag cloth two ends are all provided with extension and stretch out direction difference towards a side, and one of them extension is admission port.

A method for folding for side airbag of automobile airbag, comprises the steps:

Step 1, along the axis doubling vertical with a trapping cloth bag, makes the extension of non-admission port overlap with airbag side after airbag is paved after doubling;

Step 2, the extension of folding non-admission port, makes it edge and overlaps with the folding line of step 1 again;

Step 3, upwards turns down admission port extension, then admission port is outwards turned down admission port edge is overlapped with admission port extension folding line;

Step 4, turns down a side by the end of non-admission port one end to admission port folding, more anti-phase curling to admission port extension folding line place, then curled portion is flattened;

Step 5, the tip of admission port opposite side is to curled portion one rollover folding.

The side air bag admission port end that described step 5 is folded is installed gas filled device, afterwards by whole side air bag plastic packaging.

The invention has the advantages that this air bag structure can ensure airbag when inflation effectively, launch uniformly, protection driver and crew's shoulder and head safety, airbag folding mode can better ensure that airbag launches effect, improves the protective value of safety air bag simultaneously.

Brief description of the drawings

Below the mark in content and figure that in specification sheets of the present invention, every width accompanying drawing is expressed is briefly described:

Fig. 1 is side airbag of automobile air bag structure schematic diagram;

Fig. 2-9 are the folding schematic diagram of side airbag of automobile airbag

Mark in above-mentioned figure is: 1, levels airbag cloth; 2 airbag edge lignilites; 3, interval airbag cloth; 4, air extractor vent; 5, lignilite; 6, fastening line; 7, air-flow.

Detailed description of the invention

Known referring to Fig. 1, airbag is provided with two-layer airbag cloth, and levels airbag cloth 1 is sewed up by airbag edge lignilite 2 in edge, and is provided with admission port in airbag one end, occurs when side impact, and the air-flow 7 that is filled with airbag thus admission port is filled with, levels airbag cloth 1 is Z-shaped, two ends at airbag cloth are all provided with extension and stretch out direction difference towards a side, one of them extension is admission port, admission port is towards being approximately 45 ° of angles with airbag axis, its edge is provided with fastening line 6, another extension is circular-arc and stretches out laterally, between levels airbag cloth 1, be provided with trapping cloth bag 3 between, between trapping cloth bag 3 be horizontally placed in airbag, its edge is sutured on levels airbag cloth 1, airbag is separated into two inflation area, between trapping cloth bag 3 be provided with air extractor vent 4, the air-flow 7 being blown into by admission port like this can be blown into another inflation area through air extractor vent 4 after being blown into an inflation area, in the time there is side impact, the first inflation of inflation area of admission port one side, play protection occupant's waist, reduce occupant's side travel, reduce injury, along with air-flow 7 is through air extractor vent 4, another inflation area also expands thereupon.

This inflation area of rear expansion is blown into air flow line along air extractor vent 4 and is provided with the lignilite that several sews up levels airbag cloth, this inflation area is separated into several strip inflation area arranged side by side, these strip inflation area are connected in airbag end, and between between each strip inflation area, on trapping cloth bag 3, has an air extractor vent at least, ensure that this inflation area can be blown into air-flow 7, airbag is fully expanded, due to such spacer structure, the expansion shape of airbag, effectively protected area is more desirable, can more effectively protect occupant's shoulder and head, reduce injury.

Preferred embodiment: be laterally equidistantly provided with three air extractor vents 4 on a trapping cloth bag 3, and between every two air extractor vents 4, be provided with the lignilite of sewing up levels airbag cloth 1, the inflation area of rear expansion is separated into three strip inflation area, because safety air bag size is general fixing, carry out inflation area while being divided into trisection interval, launch effect and molding effect best thereafter.

Reach smoothly default effect when making airbag inflating expanded, before assembling airbag, airbag is folding as follows:

Step 1, along the axis doubling vertical with a trapping cloth bag, makes the extension of non-admission port overlap with airbag side after as shown in Figure 2 airbag being paved after doubling, obtain shape as shown in Figure 3;

Step 2, along the axis extension of folding non-admission port again of the extension of the non-admission port after folding, makes it edge and overlaps with the folding line of step 1, obtains shape shown in Fig. 4;

Step 3, structure as shown in Figure 5, by admission port extension is upwards turned down, more outwards turns down admission port admission port edge is overlapped with admission port extension folding line, and now admission port edge is parallel with a trapping cloth bag 3;

Step 4, turns down a side by the end of non-admission port one end to admission port folding, more anti-phase curling to admission port extension folding line place, obtains side structure as shown in Figure 7, as shown in Figure 8, then curled portion is flattened;

Step 5, the tip of admission port opposite side, to curled portion one rollover folding, by crimping portion parcel, makes airbag be rectangular square, takes up room little;

Folding complete, obtain structure as shown in Figure 9.

After completing above-mentioned folding step, side air bag admission port end is installed to gas filled device, afterwards by whole side air bag plastic packaging, thereby the good airbag of fixed fold breaks through plastic packaging surface in the time that airbag is inflated, protection driver and crew safety.

Through experiment repeatedly, so folding mode is folding, and in the time that airbag is inflated, the expansion that it can be preferably the fastest also reaches due shape.

By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.

Claims (5)

1. a side airbag of automobile airbag, the levels airbag cloth edge of this airbag is by suture and at one end have admission port, it is characterized in that: in the middle of described levels airbag cloth, be provided with by airbag cloth be separated into two inflation area between trapping cloth bag, between described, trapping cloth bag is provided with air extractor vent, and the air-flow being blown into by admission port is blown into another inflation area through air extractor vent after being blown into an inflation area;

The described inflation area without admission port is blown into air flow line along air extractor vent and is provided with the lignilite that several sews up levels airbag cloth, this inflation area is separated into several strip inflation area arranged side by side, and between each strip inflation area between have an air extractor vent at least on trapping cloth bag;

Between described, trapping cloth bag is provided with three air extractor vents of equidistantly arranging, and between every two air extractor vents, is provided with the lignilite of sewing up levels airbag cloth.

2. side airbag of automobile airbag according to claim 1, is characterized in that: described strip inflation area is connected in airbag end.

3. side airbag of automobile airbag according to claim 1, is characterized in that: described admission port edge is provided with fastening line.

4. according to the side airbag of automobile airbag described in claim 1,2 or 3, it is characterized in that: described airbag cloth two ends are all provided with extension and stretch out direction difference towards a side, and one of them extension is admission port.

5. a method for folding for the side airbag of automobile airbag as described in one of claim 1-4, is characterized in that:

Step 1, along the axis doubling vertical with a trapping cloth bag, makes the extension of non-admission port overlap with airbag side after airbag is paved after doubling;

Step 2, the extension of folding non-admission port, makes it edge and overlaps with the folding line of step 1 again;

Step 3, upwards turns down admission port extension, then admission port is outwards turned down admission port edge is overlapped with admission port extension folding line;

Step 4, turns down a side by the end of non-admission port one end to admission port folding, more anti-phase curling to admission port extension folding line place, then curled portion is flattened;

Step 5, the tip of admission port opposite side is to curled portion one rollover folding;

Step 6, installs gas filled device by side air bag admission port end, afterwards by whole side air bag plastic packaging.