Air curtain hanging lug and folding method of air curtain hanging lug

Abstract

The invention discloses an air curtain hanging lug and a folding method of the air curtain hanging lug, the air curtain hanging lug is applied to a buckle piece, the buckle piece is provided with a hanging lug clamping area, and the air curtain hanging lug comprises a first-stage stress hole and a second-stage stress hole which are arranged at an interval; after the air curtain hanging lug is folded into a folded structure, the first-stage stress hole and the second-stage stress hole are arranged in the hanging lug clamping area in a sleeved mode, and when the air curtain hanging lug is pulled, the inner edge of the first-stage stress hole is pulled to abut against the hanging lug clamping area before the inner edge of the second-stage stress hole. After the air curtain hanging lug is arranged on the buckle piece in a sleeving mode, the pulling force on the buckle can be relieved through secondary buffering, and the problem that an existing hanging lug and an existing buckle are connected and are prone to breakage or bending after being pulled is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive safety components, and particularly to an airbag lug and a folding method for the airbag lug. Background Art

[0002] In an automotive safety system, as a core component for protecting the occupant's head, the dynamic deployment performance of a side airbag is directly related to the degree of occupant injury in a collision accident. The existing airbag devices generally adopt an earpiece-main fabric stitching installation structure, which is specifically manifested as follows: a fixed point is formed by stitching and connecting an earpiece assembly to the edge of the airbag main fabric, and the earpiece mounting hole is engaged with a vehicle body CLIP fastener to complete system positioning.

[0003] In the prior art, when the airbag is inflated, the downward and outward impact force generated by the gas expansion first acts on the installation point of the airbag, especially the sewing area between the main fabric and the directly connected earpiece; in addition, the impact force generated by the inflation of the airbag directly contacts the clip-type connector (CLIP) through the hole of the earpiece, thereby transmitting the force to the connection point, and further forming a pulling force. This force transmission will cause secondary stress at the connection point, which undoubtedly affects the stability and strength of the connection components, such as causing the lug to break or the buckle to bend.

[0004] Based on this, a new technical solution is needed. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide an airbag lug and a folding method for the airbag lug, so as to at least solve the problem that the existing lugs and buckles are easily broken or bent after being connected and pulled.

[0006] Embodiments of the present invention provide the following technical solutions:

[0007] Embodiments of the present invention provide an airbag lug, which is applied to a buckle with a lug clamping area, and the airbag lug includes a first stress hole and a second stress hole arranged at intervals;

[0008] Wherein, after the airbag lug is folded into a folded structure, the first stress hole and the second stress hole are sleeved on the lug clamping area, and when the airbag lug is pulled, the inner edge of the first stress hole is pulled to abut against the lug clamping area before the inner edge of the second stress hole.

[0009] Further, the inner edge of the first stress hole abuts against the two lug clamping areas to limit the rotation of the folded airbag lug relative to the two lug clamping areas; and / or

[0010] There is a reserved interval between at least one side of the inner edge of the second stress hole and the outer wall of the two lug clamping areas, and the reserved interval is used to provide a buffer space for the airbag lug.

[0011] Further, the two sides of the patch forming the first - level stress holes and the second - level stress holes and the lug clamping area are in interference connection to limit the rotation of the curtain airbag lug relative to the two lug clamping areas after folding.

[0012] Further, the curtain airbag lug further includes:

[0013] A notch, which is arranged at the edge of the first - level stress hole and is used to avoid the switch part on the buckle when the first - level stress hole is sleeved on the lug clamping area.

[0014] Further, the curtain airbag lug further includes:

[0015] A folding weakening line, which is arranged on the curtain airbag lug and is located between the first - level stress hole and the second - level stress hole.

[0016] Further, the curtain airbag lug includes four first - level stress holes and two second - level stress holes;

[0017] The two second - level stress holes are arranged at intervals in the middle of the curtain airbag lug, and two first - level stress holes are respectively arranged on both sides of the two second - level stress holes;

[0018] Wherein, after the curtain airbag lug is folded along between one first - level stress hole and one second - level stress hole, it is then folded along between another first - level stress hole and another second - level stress hole, and the four first - level stress holes and the two second - level stress holes are all sleeved on the lug clamping area.

[0019] Further, there are two curtain airbag lugs, which are symmetrically arranged to increase the thickness of the curtain airbag lug after folding;

[0020] Wherein, after the two curtain airbag lugs overlap, they are folded along between the first - level stress hole and the second - level stress hole.

[0021] Further, the curtain airbag lug further includes:

[0022] A pre - sewing line, which is sewn on the semi - folded structure formed by folding the curtain airbag lug;

[0023] Wherein, the semi - folded structure forms the folded structure after folding along the length direction of the curtain airbag lug, so that the folded structure abuts against both ends of the lug clamping area under the action of the elastic force of the patch.

[0024] Further, one side of the folded structure exposes the pre - sewing line to prevent the buckle from being reversely penetrated.

[0025] The present invention also provides a folding method for an air curtain hanging ear. The air curtain hanging ear includes two secondary stress holes and four primary stress holes. The two secondary stress holes are located in the middle of the air curtain hanging ear, and two secondary stress holes are provided on both sides of the two secondary stress holes. The folding method includes:

[0026] Dividing the air curtain hanging ear into a folding section and an air curtain connection section. The folding section includes two of the primary stress holes and two of the secondary stress holes;

[0027] Folding the folding section towards the air curtain connection section along between the secondary stress hole and the primary stress hole away from the folding section, and making the folding section have a preset distance from the air curtain connection section;

[0028] Folding the folding section along between the secondary stress hole and the primary stress hole close to the folding section, so that each layer of fabric piece in the formed semi-folded structure has two through holes;

[0029] Folding the semi-folded structure along between the two through holes on each layer of fabric piece to form a folded structure.

[0030] Further, a folding weakening line is provided between adjacent primary stress holes and secondary stress holes.

[0031] Further, before folding the semi-folded structure, a pre-sewing line is sewn on the semi-folded structure to preliminarily fix the semi-folded structure.

[0032] Compared with the prior art, the beneficial effects that can be achieved by at least one of the above technical solutions adopted in the embodiments of the present invention at least include:

[0033] For an air curtain hanging ear of the present invention, by providing primary stress holes and secondary stress holes on the air curtain hanging ear, and after the primary stress holes and secondary stress holes are sleeved in the ear clamping area, the primary stress holes are first pulled to abut against the ear clamping area, and after continuous tension, the fabric piece forming the primary stress hole is torn to achieve the first-stage buffering and reduce the tension on the buckle;

[0034] Further, the inner edge of the secondary stress hole is pulled to abut against the ear clamping area under the action of subsequent tension, and when the fabric piece forming the secondary stress hole is pulled and torn / undergoes severe friction with the fabric piece of the primary stress piece, a second-stage buffering is performed to reduce the tension on the buckle and prevent the buckle from bending or breaking after being pulled. Description of the Drawings

[0035] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0036] Figure 1 Structural schematic diagram (I) of an air curtain hanging ear according to an embodiment of the present invention;

[0037] Figure 2 Structural schematic diagram (II) of an air curtain hanging ear according to an embodiment of the present invention;

[0038] Figure 3 Schematic diagram of an air curtain hanging ear folded into a semi-folded structure according to an embodiment of the present invention;

[0039] Figure 4 Schematic diagram of an air curtain hanging ear folded into a folded structure according to an embodiment of the present invention;

[0040] Figure 5 Schematic diagram of the folded structure of an air curtain hanging ear assembled onto a buckle according to an embodiment of the present invention;

[0041] Figure 6 Flowchart of a folding method of an air curtain hanging ear according to an embodiment of the present invention.

[0042] The reference numerals of the present invention are as follows:

[0043] 10. Air curtain hanging ear; 11. Primary stress hole; 12. Secondary stress hole; 13. Reserved interval; 14. Cut; 15. Folding weakening line; 16. Prefabricated suture; 17. Semi-folded structure; 18. Folded structure;

[0044] 20. Buckle; 21. Hanging ear clamping area; 211. Bottom panel; 212. Buckle side wall; 213. Buckle flange; 22. Switch part. Detailed implementation manners

[0045] The following will describe the embodiments of the present application in detail with reference to the drawings.

[0046] The following describes the implementation modes of the present application through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all embodiments. The present application can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope protected by the present application.

[0047] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be obvious that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects described herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0048] It should also be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner. The diagrams only show the components related to the present application and are not drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0049] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0050] Existing air curtain lugs usually have mounting holes of the same large size. After folding the air curtain lugs, the mounting holes on the air curtain lugs are sequentially sleeved on the lug clamping area 21 of the buckle. Therefore, when the air curtain lug is pulled or driven to bounce by the airbag, the air curtain lug simultaneously applies a pulling force to the lug clamping area 21 of the buckle through multiple mounting holes. When used for a long time or pulled by a huge force, the buckle will break or bend when pulled by the lug.

[0051] In addition, during the air curtain inflation process of traditional snap-on lugs, due to the lack of buffer margin, they will be subjected to pulling forces in various directions during a collision event, resulting in the lugs coming out after the buckle part is deformed.

[0052] The snap-in type hanger is fixed on the vehicle body sheet metal through a snap member. Firstly, there should be an interference state between it and the curtain airbag hanger to avoid abnormal noises. In addition, during the inflation of the curtain airbag, the inflated airbag will generate a downward and outward impact force, which will directly generate a pulling force on the hanger. Then, the hanger will generate a pulling force on the snap through the force-receiving hole. However, the existing ear design is relatively simple. After the snap is pulled, the snap or the hanger is prone to deformation, resulting in the hanger coming off.

[0053] Based on this, the embodiments of this specification propose a processing solution: As Figure 1 shown, a curtain airbag hanger 10 of the present invention is provided with a primary force-receiving hole 11 and a secondary force-receiving hole 12 on the curtain airbag hanger 10. After the curtain airbag hanger 10 is pulled, the cloth piece of the primary force-receiving hole 11 is pulled to abut against the hanger clamping area 21 prior to the cloth piece of the secondary force-receiving hole 12. Thus, when the cloth pieces of both the primary force-receiving hole 11 and the secondary force-receiving hole 12 are torn, a secondary buffer is formed, reducing the pressure on the snap and preventing the snap from being bent or broken under tension.

[0054] The following describes the technical solutions provided by the embodiments of this application with reference to the accompanying drawings.

[0055] Embodiment 1

[0056] As Figures 1 to 5 shown, a curtain airbag hanger 10 of the present invention is applied to a snap member 20 having a hanger clamping area 21. The curtain airbag hanger 10 is an elastic cloth piece structure such as a fabric structure or a resin part, and includes a primary force-receiving hole 11 and a secondary force-receiving hole 12 arranged at intervals. Among them, after the curtain airbag hanger 10 is folded into a folded structure 18, the primary force-receiving hole 11 and the secondary force-receiving hole 12 are sleeved on the hanger clamping area 21, and when the curtain airbag hanger 10 is pulled, the inner edge of the primary force-receiving hole 11 is pulled to abut against the hanger clamping area 21 prior to the inner edge of the secondary force-receiving hole 12.

[0057] Among them, the abutting state is formed when the cloth piece pulls the hanger clamping area 21 after being pulled.

[0058] Among them, the curtain airbag hanger 10 of the present invention can be used as a connecting member for fixing the side curtain airbag and the vehicle body ceiling.

[0059] The following describes the hanger clamping area 21 of the present invention with a common snap member 20:

[0060] The snap member 20 includes a snap part, and the snap part includes a bottom panel 211 and two snap side walls 212 extending from the bottom panel 211. Stop flanges 213 extending vertically outward along the snap side walls 212 are formed on the two snap side walls 212.

[0061] Specifically, after one end of the buckle side wall 212 away from the bottom panel 211 bends towards the direction where the bottom panel 211 is located, flanging is formed vertically and outwards on both sides of the end of the buckle side wall 212 to form a stop flange 213. Among them, the stop flange 213 can be a triangular structure, such as a right-angled triangular structure.

[0062] Among them, the buckle side wall 212 between the stop flange 213 and the bottom panel 211, the stop flange 213, and the bottom panel 211 together form an ear clamping area 21. Specifically, after the airbag ear 10 is folded and sleeved on the buckle side wall 212 of the stop flange 213 and the bottom panel 211, the folded structure 18 formed by the airbag ear 10 and the stop flange 213 and the bottom panel 211 are in interference connection, such as the airbag ear 10 being clamped or the airbag ear 10 being clamped with the stop flange 213 and the bottom panel 211 under the action of the elasticity of the fabric piece.

[0063] Among them, the primary stress hole 11 can be a round hole, so that the airbag ear 10 can be uniformly stressed at various angles and is convenient for production and installation.

[0064] Among them, the primary stress hole 11 and the secondary stress hole 12 are arranged at intervals along the length direction of the airbag ear 10, and after folding, they can be successively sleeved on the ear clamping area 21 of the buckle member 20.

[0065] Among them, the inner diameter of the primary stress hole 11 is smaller than the inner diameter of the secondary stress hole 12. Thus, after the primary stress hole 11 and the secondary stress hole 12 are sleeved on the ear clamping area 21, the fabric edge of the primary stress hole 11 is first pulled to abut against the ear clamping area 21, and when the force exceeds the bearing threshold of the fabric of the primary stress hole 11, the fabric is torn for primary buffering; after the primary stress hole 11 is continuously torn, the fabric edge of the secondary stress hole 12 is pulled to abut against the ear clamping area 21 to continue bearing the tensile force until the fabric of the secondary stress hole 12 is torn, realizing secondary buffering.

[0066] Among them, the airbag ear 10 can be folded in half between the primary stress hole 11 and the secondary stress hole 12 so that the primary stress hole 11 and the secondary stress hole 12 correspond to each other before and after folding, which is convenient for sleeving on the ear clamping area 21.

[0067] Among them, after the airbag ear 10 is pulled, the fabric of the primary stress hole 11 and the fabric of the secondary stress hole 12 undergo relative sliding, resulting in sliding friction between the fabric of the primary stress hole 11 and the fabric of the secondary stress hole 12, so as to be able to resist the tensile force received by the ear, such as the tensile force in the downward or other directions.

[0068] The cloth pieces formed by the primary stress holes 11 and the secondary stress holes 12 of the present invention are successively torn, so that secondary buffering can be achieved when the airbag is deployed or the lugs bounce, thereby protecting the buckle 20; and in the present invention, by successively pressing the primary stress holes 11 and the secondary stress holes 12 against the buckle, the number of cloth pieces pressing against the cloth piece clamping structure at the same time is reduced, which also facilitates the tearing or wrinkling of the cloth pieces, and avoids the problem that all the cloth pieces of the stress holes are pressed against the cloth piece clamping structure at the same time, resulting in the buckle 20 being pulled and bent or broken.

[0069] Further, the inner edge of the primary stress hole 11 abuts against the two lug clamping regions 21 to limit the rotation of the folded air curtain lug 10 relative to the two lug clamping regions 21.

[0070] Wherein, the inner diameter of the primary stress hole 11 can be the same as the outer diameter of the non-clamped part of the lug clamping region 21, so that after the primary stress hole 11 is sleeved on the lug clamping region 21, the inner edge of the primary stress hole 11 abuts against the outer wall of the lug clamping region 21 to limit the rotation of the buckle in the primary stress hole 11 under the action of friction.

[0071] In some embodiments, a convex portion extending into the interior of the buckle 20 is provided on the primary stress hole 11, and the air curtain lug 10 limits the rotation of the buckle 20 in the primary stress hole 11 through the convex portion extending into the interior of the buckle 20.

[0072] Further, there is a reserved gap 13 between at least one side of the inner edge of the secondary stress hole 12 and the outer wall of the two lug clamping regions 21, and the reserved gap 13 is used to provide a buffer space for the air curtain lug 10.

[0073] Specifically, the inner diameter of the secondary stress hole 12 is larger than the outer diameter of the lug clamping region 21, so that a reserved gap 13 is formed between the inner edge of the secondary stress hole 12 and the outer wall of the lug clamping region 21 when the secondary stress hole 12 is sleeved on the lug clamping region 21.

[0074] Among them, by adjusting the position of the folding line, a reserved gap 13 can be formed between at least one side of the secondary stress hole 12 and the outer wall of the lug clamping region 21.

[0075] Among them, the secondary stress hole 12 can be a square hole or the inner edge of the secondary stress hole 12 is in a profiling fit with the outer edge of the lug clamping region 21. For example, if the lug clamping region 21 is circular, the secondary stress hole 12 is also a circular hole.

[0076] Preferably, the secondary stress hole 12 can be a square hole to maximize the inner diameter of the hole to avoid direct contact between the inner edge of the secondary stress hole 12 and the buckle 20.

[0077] Further, an interference connection is formed on both sides of the patch for forming the first-level force-bearing hole 11 and the second-level force-bearing hole 12 and the ear clamping area 21 of the curtain airbag to limit the rotation of the curtain airbag ear 10 relative to the two ear clamping areas 21 after folding.

[0078] In some of these embodiments, after the curtain airbag ear 10 is folded into the folded structure 18, the thickness of the folded structure 18 is equal to or slightly greater than the distance between the stop flange 213 and the bottom panel 211 in the ear clamping area 21 to limit the rotation of the buckle in the force-bearing hole.

[0079] Among them, the curtain airbag ear 10 can also be in interference connection with the stop flange 213 and the bottom panel 211 under the action of the restoring elastic force of the folded structure 18.

[0080] For example, after the last folding of the curtain airbag ear 10, if there is no sewing thread to sew and fix the folded structure 18, both ends of the folded structure 18 have a tendency to relax and restore, and the folded structure 18 can be clamped in the ear clamping area 21 by using its own tendency to relax and restore.

[0081] Further, the curtain airbag ear 10 further includes a notch 14, and the notch 14 is arranged at the edge of the first-level force-bearing hole 11 and is used to avoid the switch part 22 on the buckle part 20 when the first-level force-bearing hole 11 is sleeved on the ear clamping area 21.

[0082] Among them, when there are multiple notches 14, the multiple notches 14 are arranged at intervals along the circumference of the first-level force-bearing hole 11.

[0083] Among them, the buckle further includes a pressing member, the pressing member includes two oppositely arranged extending parts and a switch part 22 located at the end of the extending part, and the two extending parts pass through the opening holes and enter between the two buckle side walls 212, so that the two switch parts 22 respectively extend out from the hole grooves opened on the buckle side walls 212.

[0084] Among them, the notch 14 is in a slightly open state to avoid the switch part 22 on the pressing member, and to prevent the pressing member from entering the buckle part 20 under external force after the switch part 22 is pressed, resulting in the failure of the buckle.

[0085] Among them, there can be two notches 14, and they are arranged oppositely to avoid the two switch parts 22 on the buckle part 20.

[0086] Further, the curtain airbag ear 10 further includes a folding weakening line 15, and the folding weakening line 15 is arranged on the curtain airbag ear 10 and is located between the first-level force-bearing hole 11 and the second-level force-bearing hole 12, and is used to avoid the curtain airbag ear 10 from restoring / opening under the action of its own restoring force when the curtain airbag ear 10 is folded, and to reduce the folding difficulty of the curtain airbag ear 10.

[0087] Among them, the folding weakening line 15 can be a notch or a hollowed-out weakening line opened on the air curtain hanging ear 10.

[0088] Among them, the folding weakening line 15 can be set as needed. On the folding line of the last fold of the folding structure 18, the folding weakening line 15 may not be set, so that the folding structure 18 is clamped into the hanging ear clamping area 21 under the action of the restoring elastic force.

[0089] In some embodiments, the air curtain hanging ear 10 includes four first-level stress holes 11 and two second-level stress holes 12; the two second-level stress holes 12 are arranged at intervals in the middle of the air curtain hanging ear 10, and two first-level stress holes 11 are respectively arranged on both sides of the two second-level stress holes 12; among them, after the air curtain hanging ear 10 is folded along a first-level stress hole 11 and a second-level stress hole 12, it is then folded along another first-level stress hole 11 and another second-level stress hole 12, so that the four first-level stress holes 11 and the two second-level stress holes 12 are all sleeved on the hanging ear clamping area 21.

[0090] Among them, by setting a plurality of first-level stress holes 11, the difficulty of the air curtain hanging ear 10 being torn can be increased, and it can be prevented from breaking easily.

[0091] Among them, setting a plurality of first-level stress holes 11 can also prevent the buckle 20 from rotating in the stress hole.

[0092] Among them, a plurality of second-level stress holes 12 are set, which can increase the difficulty of the second-level stress holes 12 being torn.

[0093] Among them, by folding and pressing the air curtain hanging ear 10 onto the hanging ear clamping area 21, due to the existence of the second-level stress holes 12, relative movement / friction can occur between the fabric pieces, thereby playing a certain buffering role.

[0094] Furthermore, there are two air curtain hanging ears 10, which are symmetrically arranged to increase the thickness of the folded air curtain hanging ears 10; among them, after the two air curtain hanging ears 10 overlap, they are folded along the first-level stress holes 11 and the second-level stress holes 12.

[0095] Among them, two air curtain hanging ears 10 are provided to increase the thickness of the folding structure 18 to adapt to hanging ear clamping areas 21 of different lengths.

[0096] Furthermore, the air curtain hanging ear 10 further includes a pre-sewing thread 16, and the pre-sewing thread 16 is sewn on the semi-folding structure 17 formed by folding the air curtain hanging ear 10; among them, the semi-folding structure 17 forms a folding structure 18 after being folded along the length direction of the air curtain hanging ear 10, so that the folding structure 18 abuts against both ends of the hanging ear clamping area 21 under the action of the fabric elastic force.

[0097] Among them, the semi-folded structure 17 is the upstream structure for the airbag ear 10 to form the folded structure 18. By sewing the pre-sewing line 16 on the semi-folded structure 17, the airbag ear 10 in the form of the semi-folded structure 17 can be preliminarily positioned; and by folding the semi-folded structure 17 in half, the folded structure 18 has a tendency to expand under the action of the elasticity of the fabric piece, so as to facilitate the folded structure 18 to be clamped in the ear clamping area 21.

[0098] Furthermore, one side of the folded structure 18 exposes the pre-sewing line 16 to prevent the buckle from being inserted backwards.

[0099] For example, the pre-sewing line 16 is exposed on the side of the folded structure 18 close to the bottom panel 211.

[0100] The airbag ear 10 of the present invention can be free of force during the point explosion while ensuring the overall thickness by arranging large hole positions in the middle position; by optimizing the two-piece folding method, the number of stressed layers is reduced, so that the airbag ear 10 is more flexible and easier to relieve force during the point explosion.

[0101] The present invention reduces the number of stressed layers of the airbag ear 10, so that the airbag ear 10 can be buffered multiple times, thereby greatly protecting the buckle member 20 and avoiding its deformation due to force.

[0102] Embodiment 2

[0103] As Figure 6 shown, the present invention provides a folding method for an airbag ear 10. The airbag ear 10 can be two integrally connected pieces, and each airbag ear 10 includes two secondary stress holes 12 and four primary stress holes 11. The two secondary stress holes 12 are located in the middle of the airbag ear 10, and two secondary stress holes 12 are provided on both sides of the two secondary stress holes 12. The folding method includes:

[0104] Step S102: Divide the airbag ear 10 into a folding section and an airbag connection section. The folding section includes two primary stress holes 11 and two secondary stress holes 12.

[0105] Among them, the airbag connection section is used to connect with the airbag, and the airbag connection section includes two primary stress holes 11 and the part connected with the airbag.

[0106] Step S104: Fold the folding section towards the airbag connection section along the between the secondary stress hole 12 and the primary stress hole 11 far from the folding section, and make the folding section have a preset distance from the airbag connection section.

[0107] Among them, the preset distance is used to connect the ear and the airbag.

[0108] Among them, a folding weakening line 15 is provided between the secondary stress hole 12 and the primary stress hole 11 far from the folding section.

[0109] Step S106: Fold the folding section between the secondary force-bearing holes 12 and the primary force-bearing holes 11 close to the folding section, so that each layer of fabric piece in the formed semi-folded structure 17 has two through-holes.

[0110] Among them, a folding weakening line 15 is provided between the secondary force-bearing holes 12 and the primary force-bearing holes 11 close to the folding section, and the folding section is folded outwards.

[0111] Step S108: Fold the semi-folded structure 17 along the two through-holes on each layer of fabric piece to form a folded structure 18.

[0112] Furthermore, a folding weakening line 15 is provided between adjacent primary force-bearing holes 11 and secondary force-bearing holes 12.

[0113] Furthermore, before folding the semi-folded structure 17, a pre-sewing line 16 is sewn on the semi-folded structure 17 to preliminarily fix the semi-folded structure 17.

[0114] In this specification, the same or similar parts among the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the product embodiments described later, since they correspond to the methods, the descriptions are relatively simple, and the relevant parts can be referred to the partial descriptions of the system embodiments.

[0115] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air curtain hanging ear, applied to a buckle with a hanging ear clamping area, characterized in that, The air curtain hanging ear includes a first stress hole and a second stress hole which are arranged at intervals; Wherein, when the air curtain hanging ear is folded into a folded structure and the first stress hole and the second stress hole are sleeved in the ear clamping area, if the air curtain hanging ear is subjected to tension, the inner edge of the first stress hole is pulled to abut against the ear clamping area before the inner edge of the second stress hole.

2. The air curtain hanging ear according to claim 1, characterized in that, The inner edge of the first stress hole abuts against the two ear clamping areas to limit the rotation of the folded air curtain hanging ear relative to the two ear clamping areas; and / or There is a reserved interval between at least one side of the inner edge of the second stress hole and the outer walls of the two ear clamping areas, and the reserved interval is used to provide a buffer space for the air curtain hanging ear.

3. The air curtain hanging ear according to claim 1, characterized in that, The cloth piece forming the first stress hole and the second stress hole is in interference connection with both sides of the ear clamping area to limit the rotation of the folded air curtain hanging ear relative to the two ear clamping areas.

4. The air curtain hanging ear according to any one of claims 1 to 3, characterized in that, The air curtain hanging ear further includes: A cut, which is arranged at the edge of the first stress hole and is used to avoid the switch part on the buckle when the first stress hole is sleeved on the ear clamping area.

5. The air curtain hanging ear according to claim 1, characterized in that, The air curtain hanging ear further includes: A folding weakening line, which is arranged on the air curtain hanging ear and is located between the first stress hole and the second stress hole.

6. The air curtain hanging ear according to any one of claims 1 to 3 and 5, characterized in that The air curtain hanging ear includes four first stress holes and two second stress holes; The two second stress holes are arranged at intervals in the middle of the air curtain hanging ear, and two first stress holes are respectively arranged on both sides of the two second stress holes; Wherein, after the air curtain hanging ear is folded along between one first stress hole and one second stress hole, it is folded along between another first stress hole and another second stress hole, and the four first stress holes and the two second stress holes are all sleeved on the ear clamping area.

7. The air curtain hanging ear according to claim 6, characterized in that, There are two air curtain hanging ears, which are symmetrically arranged to increase the thickness after the air curtain hanging ears are folded; Wherein, after the two air curtain hanging ears overlap, they are folded along between the first stress hole and the second stress hole.

8. The air curtain hanging ear according to claim 1, characterized in that, The air curtain hanging ear further includes: A pre-sewing thread, which is sewn on the semi-folded structure formed by folding the air curtain hanging ear; Wherein, the semi-folded structure is folded along the length direction of the air curtain hanging ear to form the folded structure, so that the folded structure abuts against both ends of the ear clamping area under the action of the elastic force of the cloth piece.

9. The air curtain hanging ear according to claim 8, wherein One side of the folded structure exposes the pre-sewing thread to prevent the buckle from being reversely threaded.

10. A folding method for an air curtain hanging ear, characterized in that, The air curtain hanging ear includes two second stress holes and four first stress holes. The two second stress holes are located in the middle of the air curtain hanging ear, and two first stress holes are arranged on both sides of the two second stress holes. The folding method includes: Dividing the air curtain hanging ear into a folding section and an air curtain connecting section, and the folding section includes two first stress holes and two second stress holes; Folding the folding section towards the air curtain connecting section along between the second stress hole and the first stress hole far away from the folding section, and making the folding section have a preset distance from the air curtain connecting section; Fold the folding section between the secondary stress holes and the primary stress holes close to the folding section so that each layer of fabric piece in the formed semi-folded structure has two through holes; Fold the semi-folded structure between the two through holes on each layer of fabric piece to form a folded structure.

11. The folding method according to claim 10, characterized in that, A folding weakening line is provided between the adjacent primary stress holes and secondary stress holes.

12. The folding method according to claim 11, wherein, Before folding the semi-folded structure, sew pre-sewing lines on the semi-folded structure to preliminarily fix the semi-folded structure.

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