A passenger airbag formed by one-time weaving

Abstract

The present invention discloses a one-time woven and formed passenger airbag, which is connected to a gas generator inside a vehicle, and includes: a one-time woven and formed airbag; the one-time woven and formed airbag includes an expansion layer connected to the gas generator; a front face-touching air layer, the middle height of the front face-touching air layer is lower than the heights of both sides; a first bending layer; a first support layer; a second bending layer; a second support layer; air chamber nodes are provided on the expansion layer, the front face-touching air layer, the first bending layer, the first support layer, the second bending layer, and the second support layer, the air chamber nodes of the second support layer are fixedly connected to the air chamber nodes of the front face-touching air layer, and the air chamber nodes of the second bending layer are fixedly connected to the air chamber nodes of the expansion layer, which can greatly reduce the volume of the gas generator, have a shorter inflation time, and can provide multi-layer and key protection for the passenger's head after inflation, greatly reducing the sewing process, while eliminating human errors and improving the reliability of the airbag.

Description

Technical Field

[0001] The present invention relates to an automotive airbag, particularly a passenger airbag formed by one-time weaving and molding. Background Art

[0002] When a vehicle is in motion, in case of certain accidents, airbags can effectively reduce some injuries. According to data, when a car collides, the inflation of the airbag can reduce the head injury rate by 25% and the facial injury rate by 80%.

[0003] In existing airbags, when a vehicle is impacted, the airbag will directly burst and inflate to cover the upper half of the body of the co-driver, directly enclosing the entire face of the passenger. And to avoid suffocation of the passenger, after inflating for a period of time, a structure for automatic deflation or manual deflation is often set up to prevent the airbag from sealing the passenger's face for a long time and causing suffocation. However, such operations are extremely unsafe when the vehicle encounters a secondary impact. The deflated airbag can no longer protect the passenger and will cause secondary injuries to the passenger.

[0004] Moreover, the existing co-driver airbag structure is a cube sewn by multiple groups of pieces (dozens of pieces), which requires more than a dozen sewing processes. Its volume is large (exceeding 100L), requiring a large amount of gas, resulting in a huge volume of the gas generator and limited installation. And although the large-volume airbag covers a large volume, it does not provide key local protection. Instead, the unloading points are dispersed, and the unloading effect on the actual impact force is not good.

[0005] Therefore, the present case aims to provide a passenger airbag formed by one-time weaving and molding, which is easy to weave, has a small inflation volume and a small occupied volume ratio, and can perform key unloading, and can provide sufficient safety protection for passengers on the basis of reducing the inflation volume. Summary of the Invention

[0006] The present invention provides a passenger airbag formed by one-time weaving and molding, which can effectively solve the above problems.

[0007] The present invention is implemented as follows:

[0008] A passenger airbag formed by one-time weaving and molding, connected to a gas generator inside the vehicle, includes: a one-time woven and molded airbag;

[0009] The one-time woven and molded airbag includes an expansion layer connected to the gas generator. After the expansion layer is inflated, an expansion air chamber is formed inside;

[0010] A front face contact air layer connected to the expansion layer. The middle height of the front face contact air layer is lower than the heights on both sides. After the front face contact air layer is inflated, a front face contact air chamber is formed inside;

[0011] A first bent layer communicating with the front face - contacting air layer;

[0012] A first support layer communicating with the first bent layer;

[0013] A second bent layer communicating with the first support layer;

[0014] A second support layer communicating with the second bent layer;

[0015] Air chamber nodes are provided on the expansion layer, the front face - contacting air layer, the first bent layer, the first support layer, the second bent layer, and the second support layer. The air chamber nodes of the second support layer are fixedly connected to the air chamber nodes of the front face - contacting air layer, and the air chamber nodes of the second bent layer are fixedly connected to the air chamber nodes of the expansion layer.

[0016] As a further improvement, the front face - contacting air layer includes a plurality of intermediate vertical air chambers corresponding to the passenger's face, and side vertical air chambers arranged on both sides of the intermediate vertical air chambers. The installation height of the intermediate vertical air chambers is lower than that of the side vertical air chambers.

[0017] As a further improvement, the intermediate vertical air chambers include middle vertical air columns. There are gaps between the middle vertical air columns, and there are also gaps between the middle vertical air columns and the side vertical air chambers.

[0018] As a further improvement, the perimeter of the side vertical air chambers is longer than that of the intermediate vertical air chambers.

[0019] As a further improvement, the expansion layer is in a trapezoidal structure, and the diameter of the expansion layer gradually increases from the side connected to the gas generator.

[0020] As a further improvement, the one - time woven - formed airbag is in a rolled - up structure both before and after inflation.

[0021] As a further improvement, the surface of the one - time woven - formed airbag is coated with a silica gel film, or a film is attached to the one - time woven - formed airbag.

[0022] As a further improvement, the one - time woven - formed airbag further includes ear pieces arranged on both sides of the front face - contacting air layer, the first bent layer, the first support layer, the second bent layer, and the second support layer. One end of the ear piece is fixed to a first pull - strap, and the other end of the first pull - strap is fixedly connected to the interior of the vehicle.

[0023] As a further improvement, the air chamber nodes of the second support layer and the air chamber nodes of the front face - contacting air layer, and the air chamber nodes of the second bent layer and the air chamber nodes of the expansion layer are all connected by sewing.

[0024] As a further improvement, the air chamber nodes of the second support layer are connected to the air chamber nodes of the front face-touching air layer, and the air chamber nodes of the second bending layer are connected to the air chamber nodes of the extension layer through second straps.

[0025] The beneficial effects of the present invention are as follows:

[0026] Firstly, in the present invention, the air chamber nodes of the second support layer of the airbag are fixedly connected to the air chamber nodes of the front face-touching air layer, and the air chamber nodes of the second bending layer are fixedly connected to the air chamber nodes of the extension layer, so that the uninflated airbag has been folded into a fixed shape. Once the airbag is inflated, the inflated shape of the airbag is restricted, its volume is reduced, thereby reducing the inflation volume by at least 30%, greatly reducing the volume of the gas generator, shortening the inflation time, and being able to provide multi-layer and key protection for the passenger's head after inflation, greatly reducing the sewing process, and at the same time eliminating the errors caused by humans, improving the reliability of the airbag. Through the multi-layer unloading structure, when the passenger's face is impacted, the impact force can be alleviated to the maximum extent, improving the riding safety of the passenger.

[0027] Then, by manufacturing the special shape of the airbag at one time, the passenger's face can be sunk into the front face-touching air layer. Due to the height difference, there is a certain ventilation space. After inflation, there is no need to deflate and there is no need to worry about the passenger suffocating, and the airbag with constant pressure can also provide long-term protection for the passenger, avoiding secondary injuries at the accident scene. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic plan view of a passenger airbag formed by one-time weaving and molding according to an embodiment of the present invention.

[0030] Figure 2 It is a schematic diagram of the internal air chamber distribution of a passenger airbag formed by one-time weaving and molding according to an embodiment of the present invention.

[0031] Figure 3 It is a schematic diagram of the external structure of a passenger airbag formed by one-time weaving and molding according to an embodiment of the present invention (the first perspective in the inflated state).

[0032] Figure 4It is a schematic external structure diagram (second perspective in inflated state) of a passenger airbag formed by one-time weaving according to an embodiment of the present invention.

[0033] Figure 5 It is a schematic plan structure diagram of a passenger airbag formed by one-time weaving according to another embodiment of the present invention.

[0034] Figure 6 It is a schematic three-dimensional structure diagram of a passenger airbag formed by one-time weaving according to another embodiment of the present invention. Specific embodiments

[0035] To make the embodiments of the present invention, all fall within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0036] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0037] Using an airbag as a buffer system for automobiles is already a relatively common technology in the automotive field. However, during the use of the airbag, the structure and durability of the airbag directly determine the protection effect on passengers. In the existing automotive airbag structures, it is often through the setting of a collision sensor to activate the gas generator, and then let the gas generator inflate the airbag. The airbag tries to cover as large an area as possible and will quickly deflate after completing the impact resistance, so as to provide comprehensive protection for passengers. However, although the covered area is large, its impact resistance is reduced, resulting in no resistance ability when receiving a large impact or a secondary impact, and the passengers protected by the airbag will still be injured. Therefore, to solve the above technical problems, the following technical solutions are proposed in this case.

[0038] Refer to Figure 1-6As shown in the figure, a one-piece woven and formed passenger airbag is connected to a gas generator inside the vehicle, and includes: a one-piece woven and formed airbag 10; the one-piece woven and formed airbag 10 includes an expansion layer 1 connected to the gas generator, and an expansion air chamber is formed inside the expansion layer 1 after inflation; a front face-touching air layer 2 connected to the expansion layer 1, the middle height of the front face-touching air layer 2 is lower than the heights of both sides, and a front face-touching air chamber is formed inside the front face-touching air layer 2 after inflation; a first bending layer 3 communicated with the front face-touching air layer 2; a first support layer 4 communicated with the first bending layer 3; a second bending layer 5 communicated with the first support layer 4; a second support layer 6 communicated with the second bending layer 5; air chamber nodes A are provided on the expansion layer 1, the front face-touching air layer 2, the first bending layer 3, the first support layer 4, the second bending layer 5, and the second support layer 6, the air chamber node A of the second support layer 6 is fixedly connected to the air chamber node A of the front face-touching air layer 2, and the air chamber node A of the second bending layer 5 is fixedly connected to the air chamber node A of the expansion layer 1.

[0039] In Figure 1 it, the blank part is a separable double-layer tissue, which can become part of the airbag after inflation, while the filled part is an inseparable single-layer tissue, serving as the center point for forming the airbag.

[0040] First of all, it should be emphasized that most airbags on the market need to deflate after inflation. The purpose of inflation is to protect passengers from impact, and the purpose of deflation is to avoid passenger suffocation. Therefore, in order to achieve the purpose of deflation, holes need to be opened on the airbag. Once the airbag has holes, its overall pressure retention effect will be affected. Currently, there is no pressure retention effect for passenger airbags on the market. Therefore, the one-piece woven and formed airbag 10 used in this embodiment is directly manufactured once by a large flower machine. Its surface not only does not need to be perforated, but also does not need to be sewn. It has good pressure retention performance after pressurization, and there is no need to worry about air leakage and explosion.

[0041] However, since the one-piece woven and formed airbag 10 only has two surfaces, its surface is flat. If it is directly attached to the passenger's face, it will cause passenger suffocation and cannot ensure the safety of passengers during the airbag pressurization stage. Therefore, the middle height of the front face-touching air layer 2 that fits the passenger's face is set lower than the heights of both sides. First of all, it can make the user's face located in the middle section and restrict it to the middle position of the entire airbag, providing better protection. Secondly, the concave design in the middle can allow the passenger's face to have a certain breathing space, making the fitting position of the passenger's face not a flat surface and having a certain movement space. In this way, there is no need to relieve pressure after the airbag is pressurized, and it can still maintain the pressurized state. Passengers can continue to be protected by the airbag and can still be protected even if they are subjected to a secondary impact before being rescued.

[0042] It directly utilizes the shape change of the disposable woven airbag 10 itself, rather than interfering through external structures (drawstrings, webbing), is suitable for smaller installation spaces, is not easily disturbed by external factors when inflated and popped out, and has higher adaptability.

[0043] In the existing airbag structure, a whole ball method is often adopted. After inflation, the airbag directly forms a large ball and is placed in front of the passenger. Its volume is large. Due to the large amount of inflation, in order to quickly fill the airbag in a short time, it is necessary to increase the volume and power of the gas generator. In this way, the gas generator occupies a large volume inside the car, and the molded airbag is huge, the protection area is not concentrated, and the unnecessary loss caused is too large. Therefore, in this embodiment, the structure that plays a major pressure-bearing role is the front face contact air layer 2, which contacts the passenger's face through the front face contact air layer 2. Afterwards, although the first support is set The supporting layer 4 and the second supporting layer 6, but in fact, the first supporting layer 4 and the second supporting layer 6 are not in direct contact with the passenger, but are rolled up on the inner side of the front face-contacting air layer 2. Specifically, the air chamber node A of the second supporting layer 6 is fixedly connected to the air chamber node A of the front face-contacting air layer 2, and the air chamber node A of the second bending layer 5 is fixedly connected to the air chamber node A of the expansion layer 1. The entire disposable woven airbag 10 is already in a fixed state when not inflated, so it can directly form a whole rolled shape after inflation, forming an inner and outer multi-layer protection structure to focus on protecting the passenger's face.

[0044] Since the expansion layer 1, the front contact air layer 2, the first bending layer 3, the first supporting layer 4, the second bending layer 5 and the second supporting layer 6 are in a connected state and are folded when laid out, after inflation, although a whole roll shape is formed, the inflation volume is actually greatly reduced, which is at most 30% smaller than that of the original airbags on the market. Therefore, a smaller and lower-power gas generator can be used, which occupies less space and is more suitable for light and household cars. Moreover, the protective effect of the airbag after molding is not inferior to the original airbag structure on the market. On the contrary, due to the whole roll structure, the impact resistance is better.

[0045] The air chamber node A exists in the disposable woven molded airbag 10 during the original weaving process and does not need to be added separately in the subsequent process, nor does it need to add a more complex structure. The air chamber node A itself is not the same as the air chamber in the airbag, so when the fixing effect occurs here, it will not affect the use effect of the air chamber in the disposable woven molded airbag 10, nor will it affect its pressure maintaining effect.

[0046] In this embodiment, the air chamber nodes A are sewn together. That is, during installation, the extension layer 1 is first connected to the gas generator, and then the air chamber nodes A between the various parts of the one-piece woven airbag 10 are sewn together in the above-mentioned manner. After inflation, each position can expand along the expected trajectory and position, so that the shape and position of the formed airbag meet the needs of the passengers and can protect the passengers' heads and faces well.

[0047] In other embodiments, the air chamber nodes A can be tightened by a second pull strap. The second pull strap is fixed to the two air chamber nodes A by adhesion, and the two air chamber nodes A are tightened and fixed. After inflation, the airbag will not expand and is tightly bound by the elasticity of the second pull strap. After inflation, each position can expand along the expected trajectory and position, so that the shape and position of the formed airbag meet the needs of the passengers and can protect the passengers' heads and faces well.

[0048] Although the above-mentioned one-piece woven airbag 10 is divided into multiple parts, in fact, the entire one-piece woven airbag 10 is in a rolled structure both before and after inflation. Although only one side of it contacts the passengers, there are actually many layers inside. In this embodiment, only the first support layer 4 and the second support layer 6 exist in the one-piece woven airbag 10. Therefore, combined with the front face-touching air layer 2, there are only three layers. In fact, according to the size of the space inside the vehicle and the distance between the passengers and the airbag, the third support layer or the fourth support layer can also be selected, but there should be at least three layers as in this embodiment, otherwise the overall stability and anti-impact ability cannot be guaranteed.

[0049] The first bending layer 3 and the second bending layer 5 provide bending spaces between different levels. There is actually no air chamber inside them, and the gas content inside is also less, which can save more inflation space and reduce the inflation volume.

[0050] In this embodiment, the one-piece woven airbag 10 can be directly transitioned rigidly between the front face-touching air layer 2, the first support layer 4, and the second support layer 6 without setting the first bending layer 3 and the second bending layer 5, and the same technical effect can also be achieved. However, in order to improve the smoothness effect of the one-piece woven airbag 10 after inflation and make the formed airbag more uniform and not protruding, the first bending layer 3 and the second bending layer 5 are provided for transition between the large air chambers, so that the one-piece woven airbag 10 is smoother at the folding part.

[0051] As mentioned above, there is a certain gap when the front face-touching air layer 2 contacts the passenger's face. Specifically: the front face-touching air layer 2 includes a number of intermediate vertical air chambers 21 corresponding to the passenger's face, and side vertical air chambers 22 arranged on both sides of the intermediate vertical air chambers 21. The installation height of the intermediate vertical air chambers 21 is lower than that of the side vertical air chambers 22. It can be seen from the figure that compared with the relatively higher side vertical air chambers 22 at both ends, the intermediate vertical air chambers 21 are significantly recessed inward. After the front face-touching air layer 2 is inflated, the position corresponding to the intermediate vertical air chambers 21 is the human face, while the side vertical air chambers 22 play a role in limiting the position, fixing the human face in the intermediate vertical air chambers 21 without deviation. Since the entire airbag is installed on the co-pilot side, the position of the right side vertical air chamber 22 corresponding to the B-pillar of the vehicle frame can exactly withstand the impact force when the vehicle frame deforms.

[0052] Although the intermediate vertical air chamber 21 is a concave surface, in order to improve its internal effect, it is not simply a complete concave surface. The intermediate vertical air chamber 21 includes a middle vertical air column 211, and there are gaps between the middle vertical air columns 211. After the front face-touching air layer 2 is inflated, several small air chambers will be formed in the intermediate vertical air chamber 21, dividing the interior into multiple spaces. At this time, if the passenger's nose gets stuck in the gap, although it is under pressure, there is still a certain amount of movement space, and air can flow in from the gaps on both sides, so as not to cause suffocation. And because the position of the face is uncertain during an accident, there is a gap between the middle vertical air column 211 and the side vertical air chamber 22 to prevent the face from being exactly located between the middle vertical air column 211 and the side vertical air chamber 22.

[0053] Compared with the design of small air chambers such as multiple intermediate vertical air chambers 21, the side vertical air chamber 22 is formed by the middle vertical air column 211 on the side and the edge of the airbag. Therefore, only one air chamber will be generated in the side vertical air chamber 22. In order to have an obvious distance between the side vertical air chamber 22 and the intermediate vertical air chamber 21 so that the passenger's face can always fall into the intermediate vertical air chamber 21, the perimeter of the side vertical air chamber 22 is longer than that of the intermediate vertical air chamber 21. Even if there are multiple intermediate vertical air chambers 21, the side vertical air chamber 22 still occupies a relatively large part, preventing the passenger's face from not being able to be located in the intermediate vertical air chamber 21 due to the too small area of the side vertical air chamber 22. And when the area of the side vertical air chamber 22 is large, the formed side vertical air chamber 22 will have high strength and higher resistance to impact force from the side.

[0054] When gas surges into the expansion layer 1 of the gas generator, the expansion layer 1 needs to quickly disperse the gas to the airbag to shorten the airbag forming time and rapidly respond to emergencies. Therefore, the expansion layer 1 is trapezoidal in structure, and the diameter of the expansion layer 1 gradually increases from the side connected to the gas generator. The gas surging in through the small opening can be quickly dispersed into the front face-touching gas layer 2 and other areas communicating with the front face-touching gas layer 2.

[0055] To improve the pressure-holding performance of the one-time woven and formed airbag 10 so that it can withstand secondary or more injuries at the accident scene, in this embodiment, the surface of the one-time woven and formed airbag 10 is coated with a silica gel film, making it not prone to air leakage or holes on its surface. In other embodiments, a film is attached to the one-time woven and formed airbag 10, which can also seal the surface of the one-time woven and formed airbag 10 to avoid air leakage caused by possible accidents during weaving, transportation, or installation.

[0056] In the above, the unfolding shapes and trajectories of the various components in the one-time woven and formed airbag 10 are restricted. However, in different vehicles, due to different installation positions, the ejection direction of the one-time woven and formed airbag 10 may be different. Therefore, to adapt to more vehicle models and respond to airbag outlets at more positions, the one-time woven and formed airbag 10 further includes lugs 7 provided on both sides of the front face-touching gas layer 2, the first bending layer 3, the first support layer 4, the second bending layer 5, and the second support layer 6. One end of the lug 7 is fixed to the first pull belt, and the other end of the first pull belt is fixedly connected to the interior of the vehicle. Among them, the lugs 7 can be directly formed during the weaving stage of the one-time woven and formed airbag 10, or can also be sewn on the outer edge of the one-time woven and formed airbag 10 at a later stage (the outer edge is airtight). The first pull belt can limit the direction of the one-time woven and formed airbag 10 after ejection to adapt to airbag installations at different positions.

[0057] In this embodiment, the one-time woven and formed airbag 10 is installed in the front-row co-pilot. The installation positions of the various structures in the one-time woven and formed airbag 10 are from top to bottom, that is, the expansion layer 1, the front face-touching gas layer 2, the first bending layer 3, the first support layer 4, the second bending layer 5, and the second support layer 6 are arranged in sequence from top to bottom after unfolding, forming a rolled airbag structure.

[0058] Refer to Figure 6, in other embodiments, the one-piece woven airbag 10 can also adopt other folding methods. For example, it can adopt a left-right folding method. After folding, the one-piece woven airbag 10 is a T-shaped structure. At this time, when it is unfolded, with the expansion layer 1 and the front face-touching air layer 2 as the center, the first bending layer 3 and the first support layer 4 extend to the left, while the second bending layer 5 and the second support layer 6 extend to the right. The air chamber node A can still adopt the fixing method of sewing or the second pull belt, and the same implementation effect as above can also be achieved.

[0059] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A passenger airbag formed by one-time weaving and connected to a gas generator inside the vehicle, characterized in that, Comprising: A one - time woven and formed airbag (10); The one - time woven and formed airbag (10) includes an expansion layer (1) connected to the gas generator. After the expansion layer (1) is inflated, an expansion air chamber is formed inside; A front face - contacting air layer (2) connected to the expansion layer (1). The middle height of the front face - contacting air layer (2) is lower than the heights on both sides. After the front face - contacting air layer (2) is inflated, a front face - contacting air chamber is formed inside; A first support layer (4) communicating with the front face - contacting air layer (2); A second support layer (6) communicating with the first support layer (4); Air chamber nodes (A) are provided on the expansion layer (1), the front face - contacting air layer (2), the first support layer (4), and the second support layer (6). The air chamber nodes (A) of the second support layer (6) are fixedly connected to the air chamber nodes (A) of the front face - contacting air layer (2), and the air chamber nodes (A) of the first support layer (4) are fixedly connected to the air chamber nodes (A) of the expansion layer (1).

2. The one-time woven and formed passenger airbag according to claim 1, characterized in that, The front face - contacting air layer (2) includes a plurality of middle vertical air chambers (21) corresponding to the passenger's face, and side vertical air chambers (22) arranged on both sides of the middle vertical air chambers (21). The installation height of the middle vertical air chambers (21) is lower than the installation height of the side vertical air chambers (22).

3. A one-time woven and formed passenger airbag according to claim 2, characterized in that, The middle vertical air chambers (21) include middle vertical air columns (211). There are gaps between the middle vertical air columns (211), and there are also gaps between the middle vertical air columns (211) and the side vertical air chambers (22).

4. A one-time woven and formed passenger airbag according to claim 3, characterized in that, The perimeter of the side vertical air chambers (22) is longer than that of the middle vertical air chambers (21).

5. A disposable woven and formed passenger airbag according to claim 1, wherein The expansion layer (1) is in a trapezoidal structure, and the diameter of the expansion layer (1) gradually increases from the side connected to the gas generator.

6. A one-time woven and formed passenger airbag according to claim 1, characterized in that, The one - time woven and formed airbag (10) is in a rolled - up structure before and after inflation.

7. The one-time woven and formed passenger airbag according to claim 6, characterized in that, The surface of the one - time woven and formed airbag (10) is coated with a silica gel film, or a thin film is attached to the one - time woven and formed airbag (10).

8. A one-time woven and formed passenger airbag according to claim 1, characterized in that, Further comprising a first bending layer (3) communicating with the front face - contacting air layer (2), and a second bending layer (5) communicating with the first support layer (4). Air chamber nodes (A) are provided on the first bending layer (3) and the second bending layer (5). The air chamber nodes (A) of the second support layer (6) and the air chamber nodes (A) of the front face - contacting air layer (2), and the air chamber nodes (A) of the second bending layer (5) and the air chamber nodes (A) of the expansion layer (1) are all connected by sewing.

9. A one-time woven and formed passenger airbag according to claim 1, characterized in that, Further comprising a first bending layer (3) communicating with the front face - contacting air layer (2), and a second bending layer (5) communicating with the first support layer (4). Air chamber nodes (A) are provided on the first bending layer (3) and the second bending layer (5). The air chamber nodes (A) of the second support layer (6) and the air chamber nodes (A) of the front face - contacting air layer (2), and the air chamber nodes (A) of the second bending layer (5) and the air chamber nodes (A) of the expansion layer (1) are all connected by a second pull - belt.

10. The one-time woven and formed passenger airbag according to claim 1, characterized in that, The disposable woven airbag (10) further includes a first bending layer (3) communicating with the front face-touching air layer (2), a second bending layer (5) communicating with the first support layer (4), and lugs (7) arranged on both sides of the front face-touching air layer (2), the first bending layer (3), the first support layer (4), the second bending layer (5), and the second support layer (6). One end of the lug (7) is fixed to a first pull belt, and the other end of the first pull belt is fixedly connected to the interior of the vehicle.

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