Novel automobile side safety airbag structure and folding method thereof
By introducing root pulling belts, chest steps and shoulder pulling belts into the side airbags of the car, combining the butterfly-like structure and Z-folding method, the problem of unstable airbag deployment is solved, and effective protection is achieved during side collisions is ensured. Crew safety.
Patent Information
- Application Number
- CN202411551438.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2024-12-27
AI Technical Summary
In the side column collision test of existing automobile side airbags, the airbag deployment is unstable, and it is impossible to effectively avoid the problem of excessive chest compression caused by dummy arms squeezing the chest.
A new car side airbag structure was designed, including the airbag body, a gas generator, a root pull belt fixed to the inside and outside of the airbag body, a chest step and a shoulder pull belt, which adopts a butterfly-shaped structure and Z-folding method. Make sure the airbags are deployed quickly and stably toward the occupant when side impacts, avoid arms turning out, and adjust chest pressure through exhaust holes.
The stable deployment direction control of the airbag is achieved, ensuring that the occupant's arms are lifted upwards and the shoulders are quickly in place, avoiding the arms being turned outwards. The overall folding method is simple and automated, improving safety performance.
Smart Images
Figure CN119189921A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile safety airbags, and in particular to a novel automobile side safety airbag structure and a folding method thereof. Background Art
[0002] As the penetration rate of passenger vehicles increases, people's awareness of automobile safety is also gradually improving. At present, most vehicles are equipped with airbags to improve the safety restraint protection capabilities of the vehicle. Since the body intrusion and intrusion speed in the side column collision test are relatively fast, the body strength is required to be sufficient first, and the thickness of the side airbag is required to be large enough and the protection area is large enough to cover the shoulders, chest, abdomen and pelvis. However, in the actual side column collision test, the dummy's arm often squeezes the chest, resulting in excessive chest compression.
[0003] To this end, the applicant has invented a new automobile side airbag structure so that the side airbag can quickly lift the dummy's arms when a side column collision occurs, thereby preventing the dummy's arms from squeezing the chest and causing excessive chest compression.
[0004] Currently, there is a Chinese patent authorization announcement number CN214001583U that discloses a vehicle side airbag airbag structure. Although this patent can prevent the dummy's arms from squeezing the chest, the patent has a complex structure and cannot ensure the stable deployment of the airbag.
[0005] In addition, a Chinese patent authorization announcement numbered CN212556152U discloses a new type of automobile side airbag structure. Similar to the above, the patent has a complex structure and cannot ensure stable deployment of the airbag. Summary of the invention
[0006] One of the purposes to be solved by the present invention is to provide a new automobile side airbag structure to solve the above-mentioned deficiencies and defects in the prior art.
[0007] The second purpose to be solved by the present invention is to provide a folding method for the above-mentioned novel automobile side airbag structure.
[0008] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:
[0009] A novel automobile side safety airbag structure comprises an airbag body mounted on the side of an automobile seat and a gas generator arranged on the airbag body and used to inflate the airbag body. The invention is characterized in that the airbag structure also comprises a root drawstring fixed inside and outside the airbag body, a chest step located at the chest position on the passenger's side, and a shoulder drawstring located at the shoulder pivot position of the passenger's arm.
[0010] In a preferred embodiment of the present invention, the root drawstring is sewn on the inner and outer sides of the airbag body with a misalignment drop, the length of the root drawstring is consistent with the width of the airbag body, and the width of the airbag body is larger than the misalignment drop.
[0011] In a preferred embodiment of the present invention, a plurality of waist-shaped holes for gas to pass through are provided on the root pull belt, and the plurality of waist-shaped holes are arranged on the root pull belt at intervals along the length direction of the root pull belt.
[0012] In a preferred embodiment of the present invention, the airbag body is arranged in a butterfly-shaped structure, and an air inlet hole is opened on the airbag body.
[0013] In a preferred embodiment of the present invention, the airbag body includes an inner airbag panel close to the passenger side and an outer airbag panel close to the door side, and the periphery of the inner airbag panel and the periphery of the outer airbag panel are sewn together to form an inflation chamber therebetween.
[0014] In a preferred embodiment of the present invention, an exhaust hole is provided on the airbag outer sheet or the airbag inner sheet.
[0015] In a preferred embodiment of the present invention, an exhaust hole reinforcement ring sheet is provided on the inner side of the air bag outer sheet or the air bag inner sheet and located at the exhaust hole.
[0016] A folding method of a novel automobile side airbag structure as described in any of the above technical solutions is characterized by comprising the following steps:
[0017] 1) Spread out the airbag body flat with the exhaust hole facing downward;
[0018] 2) The left side of the airbag body is folded downward toward the door side, so that the direction when deployed is toward the door. The stability during deployment is not affected by the lower end structure of the seat, which causes the deployment to be difficult;
[0019] 3) The right side of the airbag body is folded downward in two parts toward the door side in a Z-shaped folding manner; the purpose is to prevent too many passengers from intruding during the deployment process, which would cause the airbag to be turned outward when it is deployed forward and upward, resulting in injuries to the passengers' arms;
[0020] 4) The bottom of the airbag body is folded downward once, so that the airbag will be neat and not easy to loosen when folded later;
[0021] 5) Then the bottom of the airbag body is folded downward six times in a Z-shaped manner and is located on the passenger side after folding. The purpose is to deploy it faster and in a direction forward along the passenger to prevent the airbag from tipping outward during deployment;
[0022] 6) Put the folded airbag body into the wrapping cloth to prevent it from loosening.
[0023] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: by adopting the present invention: first, due to the presence of the dislocated root drawstring, the direction of the airbag deployment can be controlled, so that the airbag is deployed along the passenger side, and the stability of the airbag deployment process can be maintained; second, due to the presence of the chest step, the thickness of the passenger's chest can be ensured to be greater, and the exhaust hole is conducive to the adjustment of the passenger's chest pressure, and when the passenger squeezes the airbag, the presence of the chest step makes the passenger's arm rotate upward along the shoulder shaft; third, due to the presence of the shoulder drawstring, the thickness of the shoulder drawstring bag is smaller than the thickness of the chest and abdomen, which is conducive to the rapid placement of the airbag shoulder and the rotation of the shoulder shaft. In addition, the folding direction of the present invention is generally toward the passenger side, and the deployment direction is stable and controllable. The upper end of the airbag body is deployed toward the door side, which can effectively avoid the upper end of the airbag body hitting the passenger's arm and avoid the passenger's arm eversion, and the overall folding method is simple, without oblique folds, and the folding thickness of each part is relatively uniform, which is conducive to automation. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0026] Figure 2 It is a schematic structural diagram of the air bag body of the present invention after being unfolded.
[0027] Figure 3 It is a schematic structural diagram of the root drawstring of the present invention.
[0028] Figure 4 It is a structural schematic diagram of the shoulder drawstring of the present invention.
[0029] Figure 5 It is a working state diagram of the first step of sewing of the present invention.
[0030] Figure 6 It is a working state diagram of the second step of sewing of the present invention.
[0031] Figure 7 yes Figure 6 AA section view.
[0032] Figure 8 It is a working state diagram of the third step of sewing of the present invention.
[0033] Fig. 9 yes Figure 8 BB cross-sectional view.
[0034] Fig.10 It is a working state diagram of the fourth step of sewing of the present invention.
[0035] Fig.11 yes Fig.10 CC cross-sectional view.
[0036] Fig.12 It is a working state diagram of the fifth step of sewing of the present invention.
[0037] Fig.13 yes Fig.12 DD cross-sectional view.
[0038] Fig.14 It is a working state diagram of the sixth step of sewing of the present invention.
[0039] Fig.15 It is a side view of 14. DETAILED DESCRIPTION
[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.
[0041] See also Figures 1 to 15 A novel automobile side safety airbag structure shown in the figure comprises an airbag body 100 installed on the side of the automobile seat and a gas generator 200 arranged on the airbag body 100 and used to inflate the airbag body 100. The airbag body 100 in this embodiment is arranged in a butterfly-shaped structure, and an air inlet hole 110 is opened on the airbag body 100. Specifically, the airbag body 100 is also provided with a gas generator assembly hole for installing the gas generator 200 and a screw hole for fixing the gas generator 200 by a bolt assembly.
[0042] It also includes a root drawstring 300 fixed on the inside and outside of the airbag body 100, a chest step 400 located at the chest position of the passenger side, and a shoulder drawstring 500 located at the shoulder rotation axis position of the passenger side arm. When the airbag body 100 is inflated and deployed, due to the presence of the displaced root drawstring 300, the deployment direction of the airbag body 100 can be controlled, so that the airbag body 100 is deployed along the passenger side, and the deployment process of the airbag body 100 can be kept stable. The chest step 400 allows the passenger to lift the passenger's arm upward and rotate upward along the shoulder rotation axis when squeezing the airbag. The shoulder drawstring 500 makes the thickness of the shoulder smaller than the thickness of the chest and abdomen, which is conducive to the rapid placement of the shoulder of the airbag body 100 and the rotation axis of the shoulder drawstring 500.
[0043] The position where the root drawstring 300 is fixed on the inner side of the airbag body 100 is lower, and the position close to the outer side of the airbag body 100 is higher. There is a misalignment difference between the positions where the root drawstring 300 is sewn on the inner and outer sides of the airbag body 100. The length of the root drawstring 300 is consistent with the total width of the airbag body 100, and the width of the airbag body 100 is slightly larger than the misalignment difference. The root drawstring 300 in this embodiment is provided with a plurality of waist-shaped holes 310 for gas to pass through. The plurality of waist-shaped holes 310 are arranged on the root drawstring 300 at intervals along the length direction of the root drawstring 300, and the size and position of the waist-shaped holes 310 can be adjusted to adjust the inflation speed of the upper and lower chambers of the airbag body. The chest step 400 protects the chest of the occupant. Since the airbag inner sheet 100a of the airbag body 100 is longer than the airbag outer sheet 100b, the extra cloth piece of the airbag inner sheet 100a is folded in half once, so that the outer contour of the airbag inner sheet 100a is consistent with the airbag outer sheet 100b, and the airbag inner sheet 100a is sewn with the airbag outer sheet 100b along the edge. After inflation, a step surface is formed at the fold, that is, the step surface is the chest step 400 and the thickness is greater. In addition, the step surface is wider in the front direction of the vehicle and narrower in the rear direction of the vehicle, so that the airbag body 100 at the front end is thicker and the airbag body 100 at the rear end is thinner, which can achieve a better arm lifting effect. The shoulder strap 500 is located at the position of the shoulder axis of the occupant's arm, and there are 1 to 2 shoulder straps to control the thickness of the occupant's shoulder.
[0044] The airbag body 100 includes an airbag inner sheet 100a near the passenger side and an airbag outer sheet 100b near the vehicle door side. The periphery of the airbag inner sheet 100a and the periphery of the airbag outer sheet 100b are sewn together to form an inflatable chamber between the two. The outer shapes of the airbag inner sheet 100a and the airbag outer sheet 100b in this embodiment are not bilaterally symmetrical. The airbag inner sheet 100a has one more folding area 1a than the airbag outer sheet 100b. Specifically, after the folding area 1a of the airbag inner sheet 100a is folded, the front and rear ends of the airbag inner sheet 100a are sewn with the airbag outer sheet 100b, and the folding area 1a forms a crease, which is outside the airbag body. When the airbag body is inflated, this crease will form a thicker step, which is the chest step 400.
[0045] In addition, an exhaust hole 120 is provided on the airbag outer sheet 100b or the airbag inner sheet 100a. An exhaust hole reinforcement ring sheet 121 is provided on the inner side of the airbag outer sheet 100b or the airbag inner sheet 100a and located at the exhaust hole 120. The exhaust hole reinforcement ring sheet 121 improves the structural strength at the exhaust hole 120 to prevent the sheet at the exhaust hole from being broken due to excessive exhaust pressure. Specifically, the exhaust hole 120 of this embodiment is provided on the airbag outer sheet 100b.
[0046] Sewing sequence of the present invention is as follows:
[0047] Step 1: The structure of the air inlet hole 110 of the airbag body 100 is sewn in a conventional manner, which will not be described in detail here;
[0048] Step 2: Sewing the root drawstring 300. Align the upper inner positioning point 31 and the lower inner positioning point 32 of the root drawstring 300 with the corresponding upper inner positioning point 11a and the lower inner positioning point 12a on the airbag inner sheet 100a. Sew the root drawstring 300 and the airbag inner sheet 100a together along the inner edge 33. The sewing effect is as follows: Figure 1 a in;
[0049] Step 3: Align the upper outer positioning point 34 and the lower outer positioning point 35 of the root drawstring 300 with the corresponding upper outer positioning point 11b and the lower outer positioning point 12b on the airbag outer sheet 100b, and sew the root drawstring 300 and the airbag outer sheet 100b together along the outer edge 36. The sew effect is as follows: Figure 1 b;
[0050] Step 4: Sewing the chest step 400, aligning the line connecting the upper positioning point 13a and the lower positioning point 14a of the airbag inner sheet 100a with the line connecting the upper positioning point 15a and the lower positioning point 16a of the airbag inner sheet 100a, folding it in the middle, and the folding line forms a step surface, which is the chest step on the outside of the airbag body 100;
[0051] Step 5: Sewing the shoulder strap 500, aligning one end 51 of the shoulder strap 500 with the shoulder position of the airbag inner sheet 100a, and aligning the other end 52 of the shoulder strap 500 with the shoulder position of the airbag outer sheet 100b. The number of shoulder straps can be 1 or 2;
[0052] Step 6: Align the outer edge 10a of the airbag inner sheet 100a with the outer edge 10b of the airbag outer sheet 100b and sew them into one piece.
[0053] This embodiment also discloses a novel folding method of a vehicle side airbag structure, comprising the following steps:
[0054] 1) Spread out the airbag body flat with the exhaust hole facing downward;
[0055] 2) The left side of the airbag body is folded downward toward the door side, so that the direction when deployed is toward the door. The stability during deployment is not affected by the lower end structure of the seat, which causes the deployment to be difficult;
[0056] 3) The right side of the airbag body is folded downward in two parts toward the door side in a Z-shaped folding manner; the purpose is to prevent too many passengers from intruding during the deployment process, which would cause the airbag to be turned outward when it is deployed forward and upward, resulting in injuries to the passengers' arms;
[0057] 4) The bottom of the airbag body is folded downward once, so that the airbag will be neat and not easy to loosen when folded later;
[0058] 5) Then the bottom of the airbag body is folded downward six times in a Z-shaped manner and is located on the passenger side after folding. The purpose is to deploy it faster and in a direction forward along the passenger to prevent the airbag from tipping outward during deployment;
[0059] 6) Put the folded airbag body into the wrapping cloth to prevent it from loosening.
[0060] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A novel automobile side safety airbag structure, comprising an airbag body mounted on the side of an automobile seat and a gas generator disposed on the airbag body and used to inflate the airbag body, characterized in that: It also includes a root drawstring fixed inside and outside the airbag body, a chest step located at the chest position of the passenger side, and a shoulder drawstring located at the shoulder rotation axis position of the passenger side arm.
2. A novel automobile side airbag structure according to claim 1, characterized in that: The root drawstring is sewn at the inner and outer sides of the airbag body and has a misalignment height difference. The length of the root drawstring is consistent with the width of the airbag body, and the width of the airbag body is greater than the misalignment height difference.
3. A novel automobile side airbag structure according to claim 2, characterized in that: The root pull belt is provided with a plurality of waist-shaped holes for gas to pass through, and the plurality of waist-shaped holes are arranged on the root pull belt at intervals along the length direction of the root pull belt.
4. A novel automobile side airbag structure according to claim 1, characterized in that: The air bag body is arranged in a butterfly-shaped structure, and an air inlet hole is opened on the air bag body.
5. A novel automobile side airbag structure according to claim 4, characterized in that: The airbag body comprises an inner airbag sheet close to the passenger side and an outer airbag sheet close to the vehicle door side. The periphery of the inner airbag sheet and the periphery of the outer airbag sheet are sewn together to form an inflation chamber between the two.
6. A novel automobile side airbag structure according to claim 5, characterized in that: An exhaust hole is provided on the air bag outer sheet or the air bag inner sheet.
7. A novel automobile side airbag structure according to claim 5, characterized in that: An exhaust hole reinforcement ring sheet is arranged on the inner side of the air bag outer sheet or the air bag inner sheet and located at the exhaust hole.
8. A folding method for a new automobile side airbag structure according to any one of claims 1 to 7, characterized in that: The following steps are involved: 1) Spread out the airbag body flat with the exhaust hole facing downward; 2) The left side of the airbag body is folded downward toward the door side, so that the direction when deployed is toward the door. The stability during deployment is not affected by the lower end structure of the seat, which causes the deployment to be difficult; 3) The right side of the airbag body is folded downward in two parts toward the door side, using a Z-shaped folding method; Its purpose is to prevent excessive intrusion of passengers during deployment, which would cause the airbag to be pushed outward when it deploys forward and upward, resulting in injury to the passenger's arm; 4) The bottom of the airbag body is folded downward once, so that the airbag will be neat and not easy to loosen when folded later; 5) Then the bottom of the airbag body is folded downward six times in a Z-shaped manner and is located on the passenger side after folding. The purpose is to deploy it faster and in a direction forward along the passenger to prevent the airbag from tipping outward during deployment; 6) Put the folded airbag body into the wrapping cloth to prevent it from loosening.