Seat air bag folding method

Abstract

The invention discloses a seat air bag folding method, and belongs to the field of automobile protection systems.The seat air bag folding method is characterized in that an air bag body is provided with an air bag, an air generator, a support and a protection bag; the folding method comprises the following steps that 1, the air bag is unfolded in a plane; 2, the gas generator is fixedly connected with the support and plugged into the gas bag; 3, the air bag A is laterally stuffed into the air bag; 4, the air bag B side is folded towards the inner side twice; 5, the side C of the air bag is turned upwards; 6, the lower portion of the folded air bag is rolled upwards, and three folds are rolled in total; 7, the folded air bag is sleeved with a protection bag, the seat air bag can be completely unfolded in a short time, the arms of the dummy are lifted, the compression amount of the chest of the dummy is smaller than 28 mm, the score of the dummy is effectively increased, and the purpose of guaranteeing the safety of passengers is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile protection systems, and in particular to a seat airbag folding method. Background Art

[0002] With the development of automobile technology, people pay more and more attention to automobile safety, which gave rise to C-NCAP (China New Car Assessment Program). C-NCAP conducts all-round safety performance tests on vehicles with stricter and more comprehensive requirements, thereby providing consumers with more systematic and objective vehicle safety information and promoting automobile companies to continuously improve vehicle safety performance. At present, the side-pillar impact test in the C-NCAP regulations simulates the side-slipping of a vehicle and impacts objects such as large trees, electric poles, and signpost poles. The main driver's dummy in this regulation is WorldSID 50th. During the simulation and testing process, it was found that the chest compression of the dummy is a deduction point. The regulations stipulate that the chest compression limit of the dummy in the side-pillar impact test is 28mm-50mm, and the limit value is 55mm. By reviewing a large amount of test data of competing vehicles, it was found that in most vehicle side-pillar impact tests, the chest compression of the dummy did not meet the standard, resulting in deductions. A large amount of simulation and sliding table test data has proved that the main influencing factors include the detonation time of the seat airbag, the folding method of the seat airbag, the connection method of the door interior panel, and the intrusion speed of the barrier. At present, the folding method of the seat airbag takes a long time to fully unfold, and the dummy's arm cannot be effectively lifted, resulting in the dummy's chest compression exceeding the standard; Therefore, in view of the above problems, it is necessary for the present invention to provide a seat airbag folding method that can fully deploy the seat airbag in a shorter time. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a seat airbag folding method, which can make the seat airbag fully unfold in a short time, lift the dummy's arms, make the dummy's chest compression less than 28mm, and effectively improve the dummy's score.

[0004] In order to achieve the above object, the present invention provides the following technical solutions: A seat airbag folding method disclosed in the present invention comprises: An airbag body, which comprises an airbag, a gas generator, a bracket, and a protective bag; The folding method comprises the following steps: Step 1: unfold the air bag in a plane; Step 2: The gas generator is fixedly connected to the bracket and inserted into the air bag; Step 3: Insert air bag A sideways into the air bag; Step 4: Fold the air bag B inward twice; Step 5: Fold the air bag C side upwards; Step 6: Fold the bottom of the folded air bag upwards, three times in total; Step 7: Put the folded air bag into a protective bag.

[0005] Further, step 3.1: the insertion depth is 80-85 mm.

[0006] Further, step 4.1: the size of each fold is 80-85 mm.

[0007] Further, step 5.1: the folding size is 160±2mm.

[0008] Further, step 6.1: the width of the first fold is 50±2 mm.

[0009] Furthermore, the air bag encased in the protection bag is fixedly connected to the seat back via the gas generator.

[0010] In the above technical solution, the present invention provides a seat airbag folding method, which has the following beneficial effects: The seat airbag folding method designed by the present invention, the airbag of the airbag body is folded by the method, so that the cross section of the airbag is not circular compared with the conventional winding method. During the folding process, the flat cross section of the airbag 1 of the airbag body of the present application is elliptical and rectangular in turn, and finally forms a rectangular cross section after folding. The installation depth of the folded airbag is small, so that the airbag can also be embedded in a flatter shell, so that it can be installed in the flat area between the vehicle body and the internal space foam. At the same time, the airbag folding method provided by the present invention can make the seat airbag deploy faster than a normal seat airbag in the event of a collision accident, lift the dummy's arm, and make the dummy's chest compression less than 28mm, effectively improve the dummy's score, and achieve the purpose of ensuring the safety of the occupants. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0012] Figure 1 It is a schematic diagram of the installation state of a seat airbag folding method disclosed in the present invention; Figure 2 It is a schematic diagram of the unfolding state of a seat airbag in a folding method of the present invention; Figure 3It is a schematic diagram of the folding state of the airbag side A of a seat airbag folding method disclosed by the present invention; Figure 4 It is a schematic diagram of a seat airbag folding method disclosed in the present invention, showing a folding state of side B; Figure 5 It is a schematic diagram of another folding state of side B of a seat airbag folding method disclosed by the present invention; Figure 6 It is a schematic diagram of a C-side folding state of a seat airbag folding method disclosed by the present invention; Figure 7 This is a schematic diagram of another folded state of the C side of a seat airbag folding method disclosed by the present invention; Figure 8 The invention discloses a method for folding a seat airbag, and a schematic diagram of the overall structure of the seat airbag after the airbag main body is folded.

[0013] Description of reference numerals: 1. Airbag; 2. Gas generator; 3. Bracket; 4. Seat back. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0015] See also Figure 1 As shown; A seat airbag folding method is invented, comprising: an airbag main body; The airbag body includes an airbag 1, a gas generator 2, a bracket 3, and a protective bag; The folding method comprises the following steps: Step 1: unfold the air bag 1 in a plane; Step 2: Connect the gas generator 2 to the bracket 3 and insert them into the airbag 1; Step 3: Insert the side edge of air bag 1A into air bag 1; Step 4: Fold the side edge of the air bag 1B inward twice; Step 5: Fold the side edge of air bag 1C upwards; Step 6: Fold the lower part of the folded air bag 1 upwards, three times in total; Step 7: Put the folded air bag 1 into a protective bag.

[0016] The air bag 1 covered with a protective bag is fixedly connected to the seat back 4 via a gas generator 2 .

[0017] Specific embodiment, airbag body folding method: Step 1: unfold the air bag 1 in a plane. The unfolded air bag 1 is as follows: Figure 2As shown, the airbag 1 is divided into four sides, namely, upper, lower, left and right sides, which correspond to the four directions of A, B, C and D respectively. The side corresponding to the letter D is a neat vertical side, and the sides corresponding to the letters A, B and C are special-shaped sides with a quasi-arc structure. The length of the airbag 1 after unfolding is 570 mm and the width is 390 mm. The folding method folds the sides corresponding to the letters A, B and C; Step 2: Connect the gas generator 2 to the bracket 3 and insert them into the airbag 1; Step 3: Insert the side edge of air bag 1A into air bag 1 to a depth of 80-85 mm, specifically 83 mm (see Figure 3 As shown), in this step, the side edge of the airbag 1A is inserted into the airbag 1, which helps to deploy the airbag faster when the airbag explodes; Step 4: Fold the air bag 1B inward twice along the arrow direction. The size of each fold is 80-85mm, specifically 82mm (see Figure 4 , 5 shown); Step 5: Fold the side edge of air bag 1C upwards in the direction of the arrow. The folding size is 160±2mm, specifically 160mm (see Figure 6 shown); Step 6: Fold the lower part of the folded air bag 1 upward in the direction of the arrow, and roll it up three times. The width of the first fold is 50±2mm, specifically 50mm (see Figure 7 shown); Step 7: Put the folded airbag 1 into a protective bag. The final folded size of the airbag body is 220±10mm in height and no more than 80mm in width (see Figure 8 as shown).

[0018] The air bag 1 of the protective bag is fixedly connected to the seat back 4 through the gas generator 2, and the gas generator 2 and the seat back 4 are fixedly connected in the form of bolt connection.

[0019] The airbag body is installed inside the seat back, close to the side of the vehicle door guard plate. The airbag body is generally located near the chest of the vehicle occupant (driver or passenger). When an accident occurs and is impacted by external force, the airbag 1 of the airbag body is deployed, and the airbag 1 tears the seat cover and then deploys to protect the occupant.

[0020] In the above technical scheme, the present invention provides a seat airbag folding method. By adopting this folding method, the detonation process of the airbag 1 will be faster than the conventional winding method, which can reduce the damage to the dummy during the collision. In addition, the installation depth of the folded airbag is smaller, so that the airbag can also be embedded in a flatter shell, so that it can be installed in the flat area between the vehicle body and the interior space foaming. At the same time, it is ensured that in the event of a collision accident, it can be deployed faster than a normal seat airbag, lift the dummy's arm, and ensure the safety of the occupants.

[0021] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A seat airbag folding method, characterized in that: include: An airbag body, comprising an airbag (1), a gas generator (2), a bracket (3), and a protective bag; The folding method comprises the following steps: Step 1: unfold the air bag (1) in a plane; Step 2: The gas generator (2) is fixedly connected to the bracket (3) and inserted into the air bag (1); Step 3: Insert the air bag (1) side A into the air bag (1); Step 4: Fold side B of the air bag (1) inward twice; Step 5: Fold the air bag (1) side C upwards; Step 6: Fold the lower part of the folded air bag (1) upwards, three times in total; Step 7: Put the folded air bag (1) into a protective bag.

2. A seat airbag folding method according to claim 1, characterized in that ； Step 3.1: Insert to a depth of 80-85mm.

3. A seat airbag folding method according to claim 1, characterized in that ； Step 4.1: The size of each fold is 80-85mm.

4. A seat airbag folding method according to claim 1, characterized in that ； Step 5.1: The folding size is 160±2mm.

5. A seat airbag folding method according to claim 1, characterized in that ； Step 6.1: The width of the first fold is 50±2mm.

6. A seat airbag folding method according to claim 1, characterized in that ； The air bag (1) encased in the protective bag is fixedly connected to the seat back (4) via the gas generator (2).

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