CN116279273A - Air guide bag, manufacturing method thereof, and vehicle safety device - Google Patents

Abstract

The present disclosure provides a gas guide bag, a method of manufacturing the same, and a vehicle safety device. The air guide bag is suitable for being placed in the air bag and comprises: the main body part is provided with an air inlet and a first air outlet, and the air inlet is suitable for being communicated with the gas generator; an extension attached to the main body portion and integrally formed with the main body portion by folding and sewing an edge along a folding line of the main body portion; the extension part is provided with a second air outlet, and the extension part is turned over and moves at an angle relative to the main body part so that the second air outlet is opposite to the first air outlet in a substantially horizontal direction. The air guide bag disclosed by the invention has the advantages that the extension part is provided, the angle of the extension part is changed so that the second air outlet of the extension part is approximately horizontal with the first air outlet of the main body part, the function of helping gas to be quickly conveyed to the tail end of the air bag is realized, and the consistency of the gas in place in the front cavity and the rear cavity of the air bag is ensured.

Description

Air guide bag, manufacturing method thereof, and vehicle safety device

technical field

The present disclosure relates to the technical field of automobile passive safety, in particular to an air guide bag used for side airbags, a manufacturing method thereof, and a vehicle safety device having the air guide bag.

Background technique

As a passive safety protection device for automobiles, side airbags are a type of airbags. As shown in Figures 1 and 2, the position of the entire airbag 10 is at the upper position of the window, specifically distributed from the entire A-pillar to the C-pillar, for example, and the gas generator (not shown) is usually arranged at the B-pillar on the side of the roof. Directly above or near it requires a certain length, width and height space. The air guide bag 20 is tightly attached to the position of the gas outlet of the gas generator or the intake position 11 of the air bag 10 , and the space required by the entire air bag module is relatively large. Compared with the gas generator inserted horizontally, the gas generator installed obliquely is smaller in the vertical direction (Z direction) of the vehicle body and can save more space, so it is more widely used. Correspondingly, the The oblique air bag came into being. In the process of side collision, after receiving the signal of ignition current, the gas generator releases the gas quickly, and inflates the airbag 10 through the air inlet 21 of the airbag 20 through the airbag 20, and the airbag can be inflated in a short time. (20-30s) Rapid deployment, forming a barrier between the window and interior parts of the car and the human body, which can absorb weakened energy and avoid damage to the human head.

During the collision, the appearance of the air guide bag can not only effectively block the damage to the main fabric of the airbag caused by the temperature rise caused by the gas generator, but also can pass the air guide bag 20 toward the air outlet 22 in the front and rear direction, 23 distributes the gas into the front and rear chambers of the airbag. At the same time, due to the huge impact generated when the gas generator is detonated, a huge local stress concentration will be generated. The air guide bag has a certain strength, which can share part of the stress and maintain the integrity of the main part of the airbag.

At present, due to the design of reading lights, water pipes, handles, etc., it not only facilitates the occupants in the car, but also greatly reduces the space layout of the airbag design. For some airbags that need to protect three rows of occupants, limited to the space layout, the gas generator can only be arranged in a position closer to the front of the vehicle, which will cause the deployment speed of the rear end of the airbag to be too slow, and the front airbag has been fully inflated. The rear air bag is still inflated. Moreover, in the interior trim subsystem experiment, the tail end is easily stuck in the interior trim and cannot be unfolded. The same is true for the case where the gas generator is arranged at a position toward the rear of the vehicle. In some ways, the above-mentioned problems are avoided by increasing the number of gas generators, but this also has space arrangement problems and will lead to increased costs.

Contents of the invention

The purpose of this disclosure is to propose an air guide bag to solve the problems in the prior art. By using an extended air guide bag, the possibility of gas diversion is increased, and the inflation of the tail end is accelerated to solve the deployment speed of the tail end of the conventional air guide bag. too slow problem.

Therefore, according to one aspect of the present disclosure, there is provided an air guiding bag, which is suitable for being placed in an airbag and includes: a main body part, the main body part is provided with an air inlet and a first air outlet, The air inlet is suitable for communicating with the gas generator; an extension part, the extension part is attached to the main part, and together with the main part is folded along the folding line of the main part and the edge is sewn to form a Integral; wherein, the extension part is provided with a second air outlet, and the extension part is folded and moved at an angle relative to the main body so that the second air outlet is substantially horizontal to the first The air outlets are arranged oppositely.

According to the technical concept above, the present disclosure may further include any one or more of the following optional forms.

In some optional forms, the extension part and the main body part are a single cut piece, and a slit extending along the folding line is provided adjacent to the joint position of the extension part and the main body part, and the extension part The portion is angularly rotated relative to the body portion through the cutout to approximately horizontal after being folded over.

In some optional forms, the extension rotates relative to the main body while moving along the cutout and forming an outwardly folded fold, the edge of the fold being in contact with the extension and the main body. The bottom is sewn as a whole.

In some optional forms, the main body part is a first cut piece, and the air guide bag further includes a second cut piece and a third cut piece, and the second cut piece and the third cut piece are respectively connected with The first cut piece is cross-stitched at an angle, the second cut piece and the third cut piece form the extension part and are folded together with the main body part along the folding line of the main body part, the The second air outlet is arranged opposite to the first air outlet in a substantially horizontal direction.

In some optional forms, the second cut piece and the third cut piece each include an overlapping portion overlapping with the first cut piece, and the overlapping portion is located on an outer surface of the main body portion.

In some optional forms, the extension is provided with an opening offset from the second air outlet.

In some optional forms, the air guide bag further includes a thermal insulation sheet, and the thermal insulation sheet is sewn on the inner surface of the main body adjacent to the air inlet.

According to another aspect of the present disclosure, there is provided a method for manufacturing the above-mentioned air-guiding bag, the method comprising: S1: providing a cut piece forming a main body portion and an extension portion; S2: folding the cut piece along a folding line; S3: making the extension part angularly move relative to the main body part to be substantially horizontal; S4: sewing the edges of the main body part and the extension part into a whole.

In some optional forms, the extension part and the main body part are a single cut piece, and before or after S2, S21 is further included: opening a section along the A cut that extends across the polyline.

In some optional forms, in S3, said extension portion is angularly rotated relative to said body portion while moving along said cut and forming an outwardly folded fold.

In some optional forms, in S1, a first cut piece forming the main body portion, and a second cut piece and a third cut piece forming the extension portion are provided; before S2, S22 is also included: The second panel and the third panel are respectively cross-stitched at an angle to the first panel.

In some optional forms, in S1, further comprising S11: forming an opening on the extension part, the opening is deviated from the second air outlet; and, in S4, the sewing does not close the Open your mouth.

In some optional forms, before S2, S23 is further included: providing a heat insulation sheet, and sewing the heat insulation sheet to the inner surface of the main body.

According to another aspect of the present disclosure, there is also provided a vehicle safety device, the vehicle safety device includes a safety airbag, a gas generator, and the above-mentioned air guide bag, the safety airbag includes an airbag cavity, and the air guide bag is arranged on The cavity of the airbag is in communication with the gas outlet of the gas generator.

The air guide bag of the present disclosure provides an extension part, and changes the angle of the extension part so that the second air outlet of the extension part is roughly level with the first air outlet of the main body, so as to realize the function of helping the gas to be quickly delivered to the tail end of the airbag, ensuring that the airbag The consistency of the air in the front and back chambers. The overall structure of the air-guiding bag is compact, the manufacture is simple, and the cost is low, so it can be applied to various occasions and meet the diversified needs of users.

Description of drawings

Other features and advantages of the present disclosure will be better understood through the following optional embodiments described in detail in conjunction with the accompanying drawings, in which the same symbols identify the same or similar components, wherein:

Fig. 1 is a schematic diagram of a vehicle side airbag, wherein the gas generator is not shown;

Fig. 2 is the enlarged schematic diagram of part A in Fig. 1;

FIG. 3 is similar to FIG. 1 , showing a schematic diagram of a vehicle safety device according to an embodiment of the present disclosure, wherein the gas generator is not shown;

Fig. 4 is a schematic diagram of the development of an air guide bag according to an embodiment of the present disclosure;

Fig. 5 is a schematic diagram of the air-guiding bag in Fig. 4 after being folded along the fold line, wherein the extension part is in a non-rotated state relative to the main body part;

Fig. 6 is a schematic diagram of the extension part rotated relative to the main part through the cutout;

7A to 7C sequentially show the schematic diagrams of the change of the notch when the extension part passes through the notch and rotates relative to the main part;

Figure 8 is similar to Figure 6, showing an embodiment of an opening on an extension;

Figure 9 is similar to Figure 6, showing another embodiment of the opening on the extension;

Fig. 10 is a schematic diagram of the development of an air guide bag according to another embodiment of the present disclosure;

Fig. 11 is a schematic diagram of the air-guiding bag in Fig. 10 folded along the folding line;

Fig. 12 is an exploded schematic diagram of the air guide bag in Fig. 10 .

Detailed ways

The making and using of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the disclosure, and do not limit the scope of the disclosure. The expression of the structural position of each component such as up, down, top, bottom, etc. in the description is not absolute, but relative. These directional expressions are appropriate when the various components are arranged as shown in the drawings, but when the positions of the various components in the drawings are changed, these directional expressions are also changed accordingly.

Herein, the expression "comprises" or its synonymous similar expressions "comprising", "containing" and "having" etc. are open-ended and do not exclude additional unlisted elements, steps or components.

Herein, the terms "first", "second" and similar expressions are not used to limit the sequence and the number of components, unless otherwise specified.

In this article, unless otherwise clearly and specifically defined, terms such as "installation", "connection", and "attachment" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be It can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those skilled in the art can understand the specific meanings of the above terms herein according to specific situations.

It should be understood that the air guide bag of the present disclosure is applicable to various suitable vehicles, and the term "vehicle" includes but is not limited to vehicles, boats, airplanes, etc., wherein "vehicle" includes fuel vehicles, hybrid vehicles, electric vehicles, etc. Vehicles, hydrogen-powered vehicles, etc., and can be various types of vehicles, such as small cars, buses, rail vehicles, etc. Hereinafter, the application environment of the air bag is mainly described as a vehicle safety device of a small car, but it does not exclude that the present disclosure can be applied to other types of vehicles.

It has been realized that how to quickly disperse the gas to the front and rear cavities of the airbag is a key design factor when designing side airbags that need to cover a large area for multi-row seat design. In this paper, front and rear are relative to the front and rear directions of the vehicle. Due to space and cost considerations, using an extended air bag is an economical and effective way. According to the concept of the present disclosure, an air guide bag with an extension part is provided. Without changing the gas generator and the airbag, the gas can be quickly put in place with a simple structural design and economical cost-effectiveness, ensuring the deployment of the front and rear chambers of the airbag. consistency.

Referring to an embodiment of the air guiding bag 200 shown in FIGS. 3 to 6 , the air guiding bag 200 includes a main body 211 and an extension 214 attached to the main body 211 . In this embodiment, as shown in FIG. 4 , the main body portion 211 is configured to include a first portion 212 adapted to form an air inlet 261 and a second portion 213 to form a first air outlet 262 . The extension portion 214 and the main body portion 211 are a single piece and are generally rectangular in configuration. The main body part 211 and the extension part 214 are symmetrical along the fold line C1, so that after being folded along the fold line C1, a structure with an air inlet 261, a first air outlet 262 and a second air outlet 263 as shown in FIG. 5 is formed, wherein, The air inlet 261 is adapted to communicate with the gas generator, the first air outlet 262 faces the front chamber of the airbag, and the second air outlet 263 is formed by the free end of the extension part 214 and faces the rear chamber of the airbag. It should be understood that the shapes of the main body portion and the extension portion are not limited to those shown. As for the material of the cutting piece, it may be heat insulating material or multi-layer glued material, which is not limited here. In addition, it is described in this article that the extension part extends toward the rear cavity of the airbag. Depending on the shape design, the extension part can also be extended toward the front cavity of the airbag. Correspondingly, the first air outlet of the main body is toward the rear of the airbag. Cavity arrangement.

In the state shown in FIG. 5 , the second air outlet 263 of the extension part 214 is directed downward to the left, that is, the second air outlet 263 has an oblique angle relative to the first air outlet 262 of the main body 211 or the horizontal direction. Advantageously, it is desirable that the second gas outlet 263 can be arranged opposite to the first gas outlet 262 in a substantially horizontal direction, or in other words, the second gas outlet 263 can be adjusted to be in a substantially horizontal direction, thereby helping to quickly discharge the gas. Directed to the area associated with the second air outlet. Here, "approximately horizontal" means horizontal or approximately horizontal. Depending on the design of the internal pattern of the airbag, the final adjusted angle of the second air outlet 263 may have a deviation within a certain range, such as a deviation of 5 degrees or 10 degrees. Hereinafter, For simplicity, all are described in the horizontal direction.

One way to adjust the angle of the second air outlet or extension is to move the folded-over extension 214 shown in Figure 5 angularly relative to the main body 211 to a horizontal orientation, which can be achieved by providing cutouts in the panels . Referring to FIG. 4 , a cutout 250 extending along the folding line C1 is provided adjacent to the junction of the extension portion 214 and the main body portion 211 . The movement space of the two or the intrusion space in between. Referring to FIG. 5 and FIG. 6 , the angle between the extension part 214 and the imaginary horizontal line is set as α, that is, the rotation angle of the extension part. After the extension part is rotated to the level with the rotation angle α, as shown in Figure 6, the extension part 214 and the main body part 211 have mutually intruded parts, therefore, the size of the cutout 250 should be consistent with the intrusion amount P2 of the extension part 214 or the main body part 211 associated with the amount of intrusion P1.

Specifically, the size of the cutout 250 is related to the rotation angle α of the extension part and the width W of the second air outlet 263 of the extension part. It can be seen from Figure 6 that the theoretical incision length (the length of P1 or P2)=W×tan(α/2). For the convenience of production, the actual incision length L can be the product of the theoretical incision length and the adjustment coefficient. According to actual needs, the adjustment The coefficient may be 1.5-2, for example. The value of the width W can also be reasonably designed according to actual needs. If the size of W is too large, the overall volume of the air guide bag will be increased and the speed of the gas in place will be affected. If it is too small, the integrity of the air guide bag will be affected. The local pressure is too high and ruptures. As an example, the width W of the second air outlet 263 may be 80-120 mm, for example, 100 mm.

Actually, the rotation angle α is also related to the inclination angle of the main body portion 211 . The inclination angle between the main part of the conventional oblique air bag and the horizontal direction is usually 25°-35°. Correspondingly, when the extension part and the main part are formed by a single piece, the rotation angle α can be determined, for example, it can be 28° . In this way, the slit length L can also be determined.

In some embodiments, the extension portion rotates relative to the main body portion while moving along the incision and forming an outwardly folded fold. In the actual production process, it is advantageous to draw lines on both sides of the air guide bag to clarify the position of the folding line, which is convenient for the operator to control the product quality. Referring to Fig. 4 to Fig. 6, the starting point of the scribing position of the folding line B is the junction of the main body 211 and the extension 214 under the air guide bag, and the scribing angle θ is the angle β between the edge of the main body 211 and the vertical direction and the sum of the rotation angle α of the extension part 214 . As an example, the included angle β is 60°, the rotation angle α is 28°, and the scribing angle θ is 88°. It should be understood that the scribing angle θ is determined according to the capacity of the production process, and there may be a tolerance within a certain range in consideration of production fluctuations, such as 5 degrees or 10 degrees. After calculating the scribe angle θ, two folding lines B can be drawn on both sides of the air guide bag, one is the upper limit of the angle (for example, the scribe angle θ plus 10 degrees), and the other is the lower limit of the angle (for example, scribe Line angle θ minus 10 degrees), the product is qualified if the intrusion P1 or intrusion P2 of the extended part after folding is within the two limit values.

7A to 7C sequentially show the changing state of the notch when the extension part passes through the notch and rotates relative to the main part. As mentioned above, while the extension part rotates relative to the main part, it moves along the incision and forms an outwardly folded folded part, where "outward" refers to the incision 250 after the extension part and the main part are folded along the fold line. It can form a space for outward expansion or expansion. As shown in FIG. 7A , when the extension part 214 is rotated and folded, the operator can stretch the cutout 250 outward to provide a movement space for the extension part 214 to rotate and move toward the main body part 211 and overlap with the main body part 211 or both sides. If the intrusion space between the folding line B has been drawn, it can form a roughly rhombus as shown in the figure. Afterwards, the extension part 214 is rotated toward the main part 211 in the direction of the arrow and folded along the folding line B to the state shown in FIG. 7B , forming the first folding part 271 and the second folding part 272 on both sides respectively. At this time, the intrusion amount P1 of the main body portion 211 and the intrusion amount P2 of the extension portion 214 can be clearly seen. Finally, continue to push the extension part 214 into the main body part 211 in the direction of the arrow until the first folding part 271 and the second folding part 272 are attached to the outer surface of the extension part 214 , as shown in FIG. 7C . It should be understood that the first folding part 271 and the second folding part 272 are flipped and attached toward the extension part 214 in the above exemplary change process, however, depending on the operator, the first folding part 271 and the second folding part 272 can also be folded During the process, it is turned over and pasted toward the main body part 211 .

In this embodiment, by providing the cutout 250 and rotating the extension part 214 relative to the main body part 211 to a horizontal state, the excess cut parts of the main body part 211 and the extension part 214 invade each other through the cutout 250, and after the extension part 214 is rotated in place, that is The edges of the main body part 211 and the extension part 214 can be sewn to form an integral air guiding bag. 8 and 9 show the sewing lines 243 , 244 for sewing the edges, and the sewing line 245 for sewing together the fold 270 including the first fold 271 and the second fold 272 at the location of the cut 250 .

In some embodiments, the air guide bag also includes a heat insulation sheet, which is sewn on the inner surface of the main body 211 adjacent to the air inlet, and can buffer the gas ejected from the outlet end of the gas generator to prevent high temperature Damage caused by gas to the air guide bag. FIG. 4 exemplarily shows two heat insulating sheets 220 , 230 and corresponding sewing threads 241 , 242 .

Advantageously, the strength of the sewing threads 243, 244, 245 used for sewing the edges is higher than that of the sewing threads 241, 242 for sewing the heat shield, so as to avoid the edge sewing threads of the air guide bag from being impacted and torn, thereby ensuring the safety of the air guide bag. integrity. Also advantageously, the sewing thread 242 for sewing the heat shield can be designed as a relatively low-strength sacrificial thread or tearing thread, which can buffer the problem of excessive stress caused by the burst of the gas generator through tearing.

In some embodiments, openings may be provided on the extension to increase the exhaust efficiency of the extension. As one embodiment shown in FIG. 8 , the opening 281 is arranged away from the second air outlet 263 . In the manner shown in FIG. 8 , opening 281 is not associated with sewing thread 244 . In another embodiment shown in FIG. 9 , opening 282 is associated with sewing thread 244 . It should be understood that "associated" here does not mean that the sewing thread will close the opening, but that the sewing thread penetrates the opening area and still retains the venting effect of the opening, which can help the overall sewing of the air bag for production . It should be understood that the number, size, shape and position of the openings are related to the pattern design of the airbag, and can be reasonably designed according to actual needs.

Fig. 10 to Fig. 12 show another embodiment of the air guide bag 300, in this embodiment, the main part and the extension part of the air guide bag 300 are of separate design. Specifically, the main body part 311 is made of a first cut piece, and the extension part is made of a second cut piece 314 and a third cut piece 315 having approximately the same shape and size, such as a substantially rectangular parallelogram. Similar to the embodiment shown in FIG. 4 , the main body 311 is configured to include a first portion 312 adapted to form an air inlet 361 and a second portion 313 to form a first air outlet 362 , and is symmetrical along the bifold line C2. In the unfolded state shown in Figure 10, the second cut piece 314 and the third cut piece 315 are cross-sewn with the first cut piece at an angle, and the angle here can still refer to the edge of the first cut piece and the vertical direction. The included angle β makes the main body 311 and the extension (the second cut piece 314 and the third cut piece 315) folded along the fold line C2 to realize that the second air outlet 363 formed by the free end of the extension part is in a substantially horizontal direction Arranged opposite to the first air outlet 362, as shown in FIG. 11 .

In this embodiment, the second cut piece 314 and the third cut piece 315 are respectively sewn with the main body portion 311 by the sewing thread 346 before being folded over, thereby respectively forming a first overlap with the first cut piece. part 371 and the second overlapping part 372. After being folded, it can be seen from FIG. 11 that the overlapping portion 370 including the first overlapping portion 371 and the second overlapping portion 372 is advantageously located on the outer surface of the main body portion 311, which is beneficial to avoid including the first overlapping portion 371 and the second overlapping portion. When the overlapping part 370 of 372 is arranged inside the air guide bag, the sewing place is torn due to the impact of gas pressure. Of course, when conditions permit, for example, when the strength of the cut piece is sufficient, the overlapping part can also be arranged inside the air guide bag,

After the main body part 311 and the extension part are folded in place, the edges of the main body part 311 and the extension part can be sewn to form an integral air guiding bag. In this embodiment, in addition to the sewing lines 343 and 344 for sewing the edges, as shown in FIG. 11 , a sewing line 345 for sewing the upper edges of the second cut piece 314 and the third cut piece 315 together is also included. Similarly, the air guide bag in this embodiment may also include heat insulation sheets 320 , 330 and corresponding sewing threads 341 , 342 sewn on the inner surface of the main body 311 adjacent to the air inlet.

The air guide bag of the present disclosure not only solves the existing The space layout problem in the technology also effectively realizes the function of quickly transporting the gas ejected from the gas generator to the front and rear chambers of the airbag when a collision occurs, ensuring the consistency of the gas in the front and rear chambers of the airbag, and effectively protecting the front and rear passengers. .

Correspondingly, the present disclosure provides a method for manufacturing an air-guiding bag for different ways of forming the extension, and the method includes:

S1: providing the cut pieces forming the main body and the extension;

S2: Fold the cut piece along the fold line;

S3: Angularly moving the extension part relative to the main body part to be substantially horizontal;

S4: Sewing the edges of the main body part and the extension part as a whole.

For the integrated air guide bag 200 shown in FIGS. 4 to 9 , the extension part 214 and the main body part 211 are a single cut piece, and before or after S2, S21 is also included: adjacent to the contact position between the extension part 214 and the main body part 211 A cut 250 extending along the fold line C1 is made. Afterwards, in S3, the extension part 214 rotates at an angle relative to the main body part 211, and at the same time moves along the incision 250 to form an outwardly folded folded part 270, and then in S4, the edges are sewn into a whole to form the air guiding bag 200.

For the air guide bag 300 in split form shown in Figures 10 to 12, in S1, the first cut piece forming the main body part 311, and the second cut piece 314 and the third cut piece 315 forming the extension part are provided; Before S2, S22 is also included: cross-sew the second cut piece 314 and the third cut piece 315 respectively with the first cut piece at an angle. Afterwards, while turning over S2, the extension part in S3 moves angularly relative to the main body 311 to a substantially horizontal position, and then the edge is sewn into a whole by S4 to form the air guiding bag 300 .

For the embodiment with the opening 281 or 282 formed, advantageously in S1, it also includes S11: forming the opening 281 or 282 on the extension, the opening deviates from the second air outlet; and in S4, the slit Do not close the opening. This method is also applicable to the air-guiding bags of integral form and split form.

For the embodiment provided with a heat insulating sheet, advantageously before S2, S23 is further included: providing a heat insulating sheet, and sewing the heat insulating sheet to the inner surface of the main body. This method is also applicable to the air-guiding bags of integral form and split form.

It can be understood from the above-mentioned manufacturing method of the air guide bag that the one-piece air guide bag is convenient for production, reduces costs and saves man-hours, and needs to change the angle of the extension part relative to the main body by rotating and folding; the split air guide bag It is necessary to sew the cut piece forming the extension part and the main part at an angle before turning over, and then the angle of the extension part relative to the main part can be changed by turning over. Depending on different needs, the present disclosure provides users with more arrangement options.

Further, the present disclosure also provides a vehicle safety device, including an airbag, a gas generator, and an air guide bag, the airbag includes an airbag cavity, and the air guide bag is arranged in the airbag cavity and connected to the gas generator The outlet port is connected. The air guide bag of the present disclosure does not modify the air bag and the gas generator, so the connection between the air bag, the gas generator and the air guide bag can be in a conventional manner. The airbag is fixed with the strap clamp of the distance, the gas generator is fixed with the generator bracket through the strap clamp, the generator bracket is connected with the body sheet metal through the form of pre-hook and bolt, and the airbag is fixed with a single finger through the buckle. It is fixed to the body sheet metal in the form of a clip to form a vehicle safety device.

It should be understood here that the embodiment shown in the figures only shows the optional structure, shape, size and arrangement of the various optional parts of the air bag and vehicle safety device according to the present invention, but it is only for illustration rather than limitations, other shapes, sizes and arrangements may also be adopted without departing from the spirit and scope of the invention.

It should be noted that the invention (eg, inventive concepts, etc.) has been described in the specification of this patent document and/or illustrated in the drawings according to exemplary embodiments; the embodiments of the invention are presented by way of example only and are not intended to as a limitation on the scope of the invention. The structure and/or arrangement of elements of the inventive concept embodied in the present invention as described in the specification and/or illustrated in the drawings is illustrative only. Although exemplary embodiments of the present invention have been described in detail in this patent document, those skilled in the art will readily understand that equivalents, modifications, variations, etc., of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the present invention; all such subject matter (eg modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be embraced within the scope of the present invention. It should also be noted that in the configuration and/or arrangement (eg, in concept, design, structure, device, form, assembly, construction, means, function, system, process/method, step, process/method) of the exemplary embodiments Various/other modifications, changes, substitutions, equivalents, changes, omissions, etc., may be made in terms of sequence of steps, operations, operating conditions, properties, materials, compositions, combinations, etc. ) without departing from the scope of the present invention; all such matters (such as modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter (such as details, structures, functions, materials, acts, steps, sequences, systems, results, etc.) described in the specification and/or drawings of this patent document. It is considered that the claims of this patent document are to be properly construed to cover the full scope of the inventive subject matter (eg including any and all such modifications, variations, embodiments, combinations, equivalents, etc.); The terminology is to provide a description of the subject matter of the exemplary embodiment and not to limit the scope of the invention.

It should also be noted that according to the exemplary embodiments, the present invention may include conventional technologies (such as technologies implemented and/or integrated in the exemplary embodiments, modifications, variations, combinations, equivalents), or may include any other applicable technologies (now and/or in the future), having the ability to perform the functions and processes/operations described in the specification and/or illustrated in the drawings. All such techniques (eg, techniques implemented in the form of embodiments, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the invention of this patent document.

Claims (14)

1. A kind of air guide bag, it is characterized in that, described air guide bag is suitable for inserting in the safety air bag and comprises: a main body, the main body is provided with an air inlet and a first air outlet, and the air inlet is suitable for communicating with the gas generator; an extension part, the extension part is attached to the main body part, and is formed as a whole together with the main body part by folding and sewing the edges along the folding line of the main body part; Wherein, the extension part is provided with a second air outlet, and after the extension part is folded and moved at an angle relative to the main body part, the second air outlet is substantially horizontally aligned with the first air outlet. Opposite arrangement. 2. The air-guiding bag according to claim 1, wherein the extension part and the main body part are a single cut piece, and adjacent to the joint position of the extension part and the main body part, a A slit extending in half along a fold line, through which the extension portion is angularly rotated relative to the main body portion to substantially horizontal after being folded over. 3. The air-guiding bag according to claim 2, wherein the extension part moves along the incision while rotating relative to the main body part to form an outwardly folded folded part, and the edge of the folded part Sewn integrally with the extension and the main body. 4. The air guide bag according to claim 1, wherein the main body is a first cut piece, the air guide bag further comprises a second cut piece and a third cut piece, the second cut piece and said third panel are respectively cross-stitched at an angle to said first panel, said second panel and said third panel form said extension and together with said body part along said body After the fold line of the upper portion is folded, the second air outlet is arranged opposite to the first air outlet in a substantially horizontal direction. 5. The air guide bag according to claim 4, characterized in that, the second cut piece and the third cut piece respectively comprise an overlapping portion overlapping with the first cut piece, and the overlapping portion is located at the outer surface of the main body. 6. The air guide bag according to any one of claims 1 to 5, wherein the extension part is provided with an opening, and the opening is deviated from the second air outlet. 7. The air guide bag according to any one of claims 1 to 5, characterized in that, the air guide bag further comprises a heat insulation sheet, and the heat insulation sheet is sewn on the air inlet adjacent to the air inlet. the inner surface of the main body. 8. A method for manufacturing the air bag according to any one of claims 1 to 7, characterized in that the method comprises: S1: providing the cut pieces forming the main body and the extension; S2: Fold the cut piece along the fold line; S3: Angularly moving the extension part relative to the main body part to be substantially horizontal; S4: Sewing the edges of the main body part and the extension part as a whole. 9. The method according to claim 8, wherein the extension part and the main body part are a single cut piece, before or after S2, further comprising S21: adjacent to the extension part and the main body part A slit extending along the folding line is provided at the connecting position. 10. The method according to claim 9, characterized in that in S3, the extension part is angularly rotated relative to the main part while moving along the incision and forming an outwardly folded fold. 11. The method according to claim 8, characterized in that, in S1, a first cut piece forming the main body portion, and a second cut piece and a third cut piece forming the extension portion are provided; in S2 Before, S22 is also included: cross-sew the second cut piece and the third cut piece respectively with the first cut piece at an angle. 12. The method according to any one of claims 8 to 11, characterized in that, in S1, further comprising S11: forming an opening on the extension part, the opening deviates from the second air outlet; and , in S4, the sewing does not close the opening. 13. The method according to any one of claims 8 to 11, characterized in that, before S2, it also includes S23: providing a heat insulating sheet, and sewing the heat insulating sheet on the inner surface of the main body . 14. A vehicle safety device, characterized in that the vehicle safety device comprises an airbag, a gas generator and the air guide bag according to any one of claims 1 to 7, the airbag comprises an airbag cavity, The air guiding bag is arranged in the cavity of the airbag and communicated with the gas outlet of the gas generator.

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