Device and curtain airbag module for protecting vehicle occupants

Abstract

The utility model relates to a device for protecting vehicle occupant, it includes: curtain air bag (40) has the storage state of being rolled up and / or folding, mounting support (10) has the L shape shape formed by first arm (11) and second arm (12), first arm sets up for with the fixed connection of the support structure of vehicle and second arm has respectively protruding portion (16) that stretches out to both sides, lug tab (20) has the transverse opening (21) that can pass through the second arm of mounting support in the middle area, lug tab is fixedly connected with curtain air bag at first end (20a) and has the foldable insertion edge (22) at second end (20b), it has at least one longitudinal opening (23), under the condition that the transverse opening that can pass through the second arm of mounting support and insertion edge have been folded, the protruding portion of second arm can pass through longitudinal opening and form the reverse hook structure, at least one wrapping part (30). The utility model is also related to a curtain air bag module.

Description

Technical Field

[0001] This utility model relates to a device for protecting vehicle occupants. More specifically, this utility model relates to a curtain-type airbag module. Background Technology

[0002] It is known that inflatable vehicle occupant protection devices are inflated to protect vehicle occupants, for example, in the event of a vehicle collision. One particular type of vehicle occupant protection device is an inflatable curtain fixed to the roof and / or to a support structure adjacent to the roof. The inflatable curtain is typically stored by rolling up and / or folding. The inflatable curtain is configured to inflate downwards from the roof within the passenger compartment in the event of a side impact or vehicle rollover. When inflated, the inflatable curtain is positioned between the vehicle occupants and the side structure of the vehicle.

[0003] For example, patent document US20070205589A1 discloses an inflatable curtain. Figure 1 The diagram shows an inflatable curtain in a stored state inside a vehicle, according to an embodiment of the patent document. Figure 2 The diagram shows an inflatable curtain in an deployed state in the vehicle interior, according to an embodiment of the patent document.

[0004] However, currently, tape is commonly used to secure rolled-up and / or folded curtain airbags to the mounting bracket. There is a significant need for improvement in the securing structure for curtain airbags in practical applications. Utility Model Content

[0005] The purpose of this invention is to provide an improved device for protecting vehicle occupants and an improved curtain airbag module, which at least overcomes some of the shortcomings of the prior art.

[0006] According to one aspect of the present invention, a device for protecting vehicle occupants is provided, the device comprising:

[0007] - A curtain-type air bag, wherein the curtain-type air bag has a storage state in which the curtain-type air bag is rolled up and / or folded;

[0008] - Mounting bracket, the mounting bracket having an L-shaped form formed by a first arm and a second arm, the first arm being configured for fixed connection with the support structure of the vehicle and the second arm having protrusions extending to both sides respectively;

[0009] - A lug connector having a transverse opening in the middle region through which the second arm of the mounting bracket can pass, the lug connector being fixedly connected to a curtain air bag at a first end and having a bendable insertion edge at a second end, the bendable insertion edge having at least one longitudinal opening, wherein when the second arm of the mounting bracket passes through the transverse opening and the insertion edge is bent, the protrusion of the second arm can pass through the longitudinal opening to form a hook structure;

[0010] - At least one wrapping section for packaging the curtain-type air bag in the storage state.

[0011] In one embodiment, the bendable insertion edge is defined at the second end of the lug tab by a tear line.

[0012] In one embodiment, the bendable plug edge has a symmetrical structure along the longitudinal centerline of the lug tab and has two longitudinal openings, each allowing a protrusion of the second arm of the mounting bracket to pass through. In another embodiment, the bendable plug edge is cut along the longitudinal centerline such that the left and right bendable plug edges each have a longitudinal opening and can be bent independently of each other.

[0013] In one embodiment, the bendable insertion edge has an asymmetrical structure along the longitudinal centerline of the lug tab. In another embodiment, the lug tab has a bendable insertion edge only on one side of the longitudinal centerline at its second end.

[0014] In one embodiment, the wrapping portion is fixedly connected at one end to a lug connector and at the other end to the mounting bracket, for mounting the curtain airbag in its stored state onto the vehicle's support structure. In another embodiment, the wrapping portion is connected to the lug connector near the fixed connection point between the lug connector and the curtain airbag. In yet another embodiment, the wrapping portion has a weak portion such that, when the curtain airbag is inflated, if the force applied to the wrapping portion exceeds a first threshold, the weak portion can break, thereby releasing the curtain airbag.

[0015] In one embodiment, the lugs have a multi-layered structure. In another embodiment, the lugs have three or more layers of fabric. In yet another embodiment, multiple lugs are evenly spaced apart and fixed to the upper edge of the curtain-type air bag.

[0016] In one embodiment, the protrusion of the second arm of the mounting bracket has a rectangular shape. In another embodiment, the protrusion has a chamfer at its end.

[0017] In one embodiment, the width of the lateral opening in the middle region of the lug tab is 1 / 4 to 1 / 2 of the width of the lug tab. In another embodiment, the length of the protrusion of the second arm of the mounting bracket is 1 / 4 to 1 / 3 of the width of the lug tab.

[0018] In one specific embodiment, with the curtain airbag installed, and with the second arm of the mounting bracket passing through the transverse opening and the protrusion of the second arm passing through the longitudinal opening in the bent insertion edge, the fixed length of the wrapping portion is set such that the second arm of the mounting bracket, together with the lug tab, rests against the surface of the rolled-up and / or folded curtain airbag.

[0019] According to another aspect of the present invention, a curtain airbag module is provided, the curtain airbag module including the device for protecting vehicle occupants according to the present invention.

[0020] In summary, the technical solution of this utility model achieves significant improvements over the prior art: On the one hand, the double-interlocking design of the longitudinal and transverse openings of the mounting bracket and the lug connector, especially with the complementary constraint brought by the orthogonal direction, greatly increases the threshold for anti-detachment failure. Even under severe shaking conditions, the second arm of the mounting bracket can ensure that it does not come out of the lug connector, fundamentally guaranteeing the anti-detachment stability of the assembly connection; on the other hand, the flexible lug connector can actively fill the gaps that may occur during the assembly process by means of the bent insertion edge (the gaps may be caused by the weight of the rolled-up and / or folded curtain airbag itself, the assembly tolerances between various components, and the possible differences in the folded thickness of the curtain airbag, etc.), ultimately making the airbag assembly form a stable and compact overall installation structure.

[0021] It should be noted that the individual technical features already mentioned, as well as the individual technical features to be mentioned below and the individual technical features that can be derived from the accompanying drawings, can be arbitrarily combined with each other, as long as the combined technical features are not contradictory. Attached Figure Description

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings, in which:

[0023] exist Figure 1 The diagram shows an inflatable curtain in a stored state in the interior of a vehicle, according to an embodiment of the prior art.

[0024] exist Figure 2 The diagram shows an inflatable curtain in an deployed state in the interior of a vehicle, according to an embodiment of the prior art.

[0025] exist Figure 3The diagram shows a schematic cross-sectional view of one embodiment of a device for protecting vehicle occupants according to the prior art.

[0026] exist Figure 4 The diagram shows a schematic representation of an embodiment of the lug connector according to the present invention.

[0027] exist Figure 5 It shows Figure 4 A partial schematic diagram of the connection structure between the lug connector and the mounting bracket.

[0028] exist Figure 6 The image shows a... Figure 4 The diagram shows a schematic cross-sectional view of an embodiment of the device according to the present invention, showing the lug connector.

[0029] exist Figure 7 It shows Figure 6 A partial schematic front view of the device for protecting vehicle occupants according to this utility model before assembly is completed.

[0030] exist Figures 8A to 8E The diagram shows an installation process of one embodiment of the device for protecting vehicle occupants according to the present invention.

[0031] exist Figure 9 A schematic diagram of another embodiment of the lug connector according to the present invention is shown.

[0032] exist Figure 10 It shows Figure 9 A partial schematic diagram of the connection structure between the lug connector and the mounting bracket. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many ways other than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0034] It should be noted that the singular form in this document also includes the plural form, unless specifically mentioned in the wording. Furthermore, the use of "comprise" or "include" in this document to refer to components, steps, operations, and elements means that at least one other component, step, operation, or element may be present or added to it. The terms "first," "second," etc., appearing in this document are merely for the convenience of description and to distinguish different components with the same name, and do not indicate a sequential or primary / secondary relationship between the components.

[0035] In the prior art, inflatable curtains for protecting vehicle occupants are known. For example, patent document US20070205589A1 discloses a device 200 for protecting one or more occupants 600 of a vehicle 300, which includes an inflatable curtain 208. Figure 1 The diagram illustrates an inflatable curtain 208 in a stored state within a vehicle interior, according to an embodiment of the patent document. In the stored state, the rolled-up inflatable curtain 208 is secured to the roof by a fixing structure 202. In this prior art, a cover 206 at least partially wraps around the rolled-up inflatable curtain 208 along the length of the airbag and is secured to each other at two overlapping end portions by means such as double-sided tape, adhesive, or the like, to maintain the inflatable curtain 208 in the stored state. The device 200 also includes a gas generator 204. The gas generator 204 is in fluid communication with the inflatable curtain 208 via a conduit to inflate the curtain 208, for example, in the event of a vehicle collision, such that the cover 206 can release the inflatable curtain 208 by rupture or breakage and allow the inflatable curtain 208 to deploy. Figure 2 The diagram shows an inflatable curtain 208 in an deployed state in a vehicle interior, according to an embodiment of the patent document. In its inflated, deployed state, the inflatable curtain 208 is positioned between the vehicle occupants and the side structure of the vehicle to provide protection.

[0036] However, this known method of wrapping inflatable curtains often requires a large number of operators and involves a long packaging / assembly time. When using tape, meticulous tape trimming and positioning markings are necessary, further increasing packaging / assembly time and cost.

[0037] exist Figure 3 The diagram shows a schematic cross-sectional view of a device 101 for protecting vehicle occupants according to the prior art. Figure 3 The image primarily shows the connection structure for securing the rolled-up and / or folded curtain-type air bag 40 to the mounting bracket 10.

[0038] like Figure 3 As shown, the prior art device 101 for protecting vehicle occupants includes a curtain airbag 40, which, in the illustrated state, is in a rolled-up and / or folded storage state. The device 101 also includes a mounting bracket 10 having an L-shape formed by a first arm 11 and a second arm 12. The first arm 11 is configured for fixed connection to a support structure of the vehicle, and the second arm 12 is configured for connection to a lug tab 20. Figure 3 As shown, the lug connector 20 is fixedly connected to the curtain-type air bag 40 at one end and to the mounting bracket 10 at the other end (e.g., Figure 3As can be seen, the lug 20 is connected to the mounting bracket 10 by passing the second arm 12 of the mounting bracket 10 through the through hole in the lug 20. The device 101 also includes a wrapping part 30 for packaging the curtain air bag 40 in a storage state. According to the prior art, due to factors such as the weight of the rolled-up and / or folded curtain air bag 40, the assembly tolerances between the components, and the possible differences in the folded thickness of the curtain air bag 40, gaps a of varying sizes may occur between the mounting bracket 10 and the connecting lug 20 (e.g., gaps α). Figure 3 As shown in the figure, this gap a will further lead to unstable installation and fixation, specifically manifested as the airbag assembly swaying and shaking after installation.

[0039] Therefore, this utility model proposes an improved device 100 for protecting vehicle occupants. Figure 4 A schematic diagram of one embodiment of the lug connector 20 according to the present invention is shown. Figure 5 It shows Figure 4 A partial schematic diagram of the connection structure between the lug connector 20 and the mounting bracket 10. Figure 6 The image shows a... Figure 4 The diagram shows a schematic cross-sectional view of a lug connector according to an embodiment of the device 100 of this utility model. Figure 7 It shows Figure 6 This is a partial schematic front view of the device 100 for protecting vehicle occupants according to the present invention before assembly. It is readily understood that the sizes of the components are not strictly drawn according to actual dimensions in order to more clearly show the connections and structure between the parts.

[0040] like Figure 6 As shown, the device 100 for protecting vehicle occupants according to the present invention includes a curtain-type airbag 40 for assisting in the protection of vehicle occupants. The curtain-type airbag 40 has a stored state. Figure 6The diagram shows the curtain airbag 40 in the storage state, in which it is rolled up and / or folded. The curtain airbag 40 can be constructed from any suitable material, such as nylon (e.g., woven nylon 6-6 yarn), and can be constructed in any suitable manner. For example, the curtain airbag 40 can have an open-piece fabric (OPW) construction, wherein the curtain airbag is woven as a single piece of material. As another example, the curtain airbag 40 may comprise more than one piece of material. If more than one piece of material is used, these material pieces can be interconnected by suitable means, such as sewing, ultrasonic welding, thermal bonding, or adhesives, to form the curtain airbag 40. The curtain airbag 40 may be uncoated, coated with a material such as impermeable polyurethane, or laminated with a material such as an impermeable membrane. Therefore, the curtain airbag 40 can have an airtight or substantially airtight construction. Those skilled in the art will understand that alternative materials such as polyester yarn and alternative coatings such as silicone resin can also be used to construct the curtain airbag 40.

[0041] A gas generator is functionally connected to and activated to provide inflation fluid for inflating the curtain airbag 40 from a stored state to a deployed state. The gas generator can be of any known type, such as a stored gas type, a solid propellant type, an enhanced type, or a hybrid type. An airbag controller is functionally connected to the gas generator. The airbag controller is configured to activate the gas generator in response to sensing an event requiring occupant protection, such as the occurrence of a collision.

[0042] like Figure 6 As shown, the device 100 also includes a mounting bracket 10 having an L-shaped form formed by a first arm 11 and a second arm 12 (it is easy to understand that this L-shaped form is particularly from...). Figure 6 (As observed in a schematic cross-sectional view). The first arm 11 of the mounting bracket 10 is configured for fixed connection with the vehicle's support structure, for example by means of screws through an opening 15 in the first arm 11 (see, for example, see...). Figure 7 The mounting bracket 10 is fixedly connected. Of course, other suitable connection methods are also conceivable. The mounting bracket 10 is made of metal, for example, thus possessing sufficient rigidity and strength. The curtain airbag 40 can be mounted to the vehicle's support structure via the mounting bracket 10. The support structure can be any structure in the vehicle that receives the curtain airbag 40 deployed therefrom, such that the deployed curtain airbag 40 is located between the vehicle's side structure (e.g., doors, side windows, roof longitudinal beams, and / or vehicle pillars) and the vehicle occupants. The support structure can be the vehicle's roof longitudinal beam. The second arm 12 of the mounting bracket 10 has protrusions 16 extending to both sides (see, for example, see...). Figure 8B Thus, the second arm 12 of the mounting bracket 10 forms a T-shape.

[0043] like Figure 4As shown, the device 100 also includes a lug tab 20. This lug tab 20 has a transverse opening 21 in its central region through which the second arm 12 of the mounting bracket 10 passes (it is easy to understand that "transverse" here refers to a direction transverse to the longitudinal centerline L of the lug tab). For example... Figure 4 and 6 As shown, the lug tab 20 is fixedly connected to the curtain air bag 40 at a first end 20a and has a bendable insertion edge 22 at a second end 20b. The bendable insertion edge 22 has at least one longitudinal opening 23 (it is readily understood that longitudinal here refers to the direction parallel to the longitudinal centerline L of the lug tab). The second arm 12 of the mounting bracket 10, having a T-shape, can pass through the transverse opening 21 in the lug tab. See also... Figure 8B Although the maximum lateral width W4 of the T-shape of the mounting bracket 10 is greater than the width W1 of the lateral opening 21, the edge of the lateral opening 21 can deform due to the flexible structure of the lug tab 20, thus providing space for the assembly of the mounting bracket. For example, during assembly, one protrusion 16 of the T-shape of the mounting bracket 10 is first tilted and aligned with the lateral opening 21 and passed through. After the protrusion 16 has completely passed through, the angle of the mounting bracket 10 is adjusted so that the other protrusion 16 also passes through the lateral opening 21 at an angle. When both protrusions 16 have passed through the lateral opening 21, the lug tab 21 returns to its natural state. At this time, the two protrusions 16 of the mounting bracket 10 (because the maximum lateral width W4 of the T-shape is greater than the width W1 of the lateral opening 21) will form a limit on the surface of the lug tab 20, so that the mounting bracket 10 will not come out of the lateral opening 21 of the lug tab 20. The insertion edge 22 of the lug tab 20 can be bent inward. In a preferred embodiment, see exemplary embodiment. Figure 4 The bendable insertion edge 22 is defined at the second end 20b of the lug tab 20 by a tear line 25. Thus, the tear line 25 pre-defines a clear bending path for the insertion edge 22, allowing operators to easily and accurately complete the folding, significantly reducing operational difficulty. Simultaneously, the tear line 25 prevents the insertion edge 22 from easily rebounding after folding, thereby firmly maintaining the folded state and ensuring the stability of subsequent assembly and the overall structure.

[0044] like Figure 5As shown, when the second arm 12 of the mounting bracket 10 passes through the transverse opening 21 and the insertion edge 22 is bent, the protrusion 16 of the second arm 12 of the mounting bracket 10 can pass through the longitudinal opening 23 in the insertion edge 22 to form a hook structure. This not only allows the lug tab 20 to be held more reliably on the metal mounting bracket 10 (due to the double interlocking in both transverse and longitudinal directions, even under significant shaking, the second arm 12 of the mounting bracket 10 will not come off the lug tab 20), but also allows the flexible lug tab 20 to fill any potential assembly gaps (such as...) with the help of the bent insertion edge 22. Figure 6 As shown in the diagram, this results in a robust and compact packaging structure. Preferably, the lug tab 20 has a multi-layer structure, preferably with three or more layers of fabric. Thus, the superposition of multiple layers of fabric significantly enhances the structural strength of the lug tab 20, meeting the fixing requirements; simultaneously, the flexibility of the fabric itself is not lost due to the multi-layer design, and it can compensate for larger assembly gaps through its own deformation. Preferably, the device 100 includes multiple lug tabs 20, which are evenly spaced and fixed to the upper edge of the curtain airbag 40. Thus, the evenly distributed structure allows for more balanced force distribution on the upper edge of the curtain airbag 40, avoiding localized force concentration, while ensuring that the airbag assembly can be stably assembled onto the vehicle's support structure.

[0045] In a preferred embodiment, see, for example, [link to example]. Figure 5 The protrusion 16 of the second arm 12 of the mounting bracket 10 has a rectangular shape. Therefore, in the assembled state, the rectangular protrusion 16 can contact the insertion edge 22 with a larger area, making the fixed connection more stable and reliable. Of course, it is also conceivable that the protrusion 16 has other suitable shapes, such as trapezoidal, semi-circular, etc. Preferably, the protrusion 16 has a chamfer at its end. Therefore, the chamfer at the end can serve as a guide, allowing the operator to easily and quickly insert the protrusion 16 through the longitudinal opening 23. See, for example, a preferred embodiment. Figure 8B The width W1 of the transverse opening 21 in the middle region of the lug tab 20 is 1 / 4 to 1 / 2 of the width W2 of the lug tab. Preferably, the length W3 of the protrusion 16 of the second arm 12 of the mounting bracket 10 is 1 / 4 to 1 / 3 of the width W2 of the lug tab. Therefore, the lug tab 20 achieves a particularly secure locking effect and is not easily dislodged.

[0046] exist Figure 4The figure shows a schematic diagram of a preferred embodiment of the lug connector 20 according to the present invention. As shown, preferably, the bendable insertion edge 22 has a symmetrical structure along the longitudinal center line L of the lug connector 20 and has two longitudinal openings 23, through which the two protrusions 16 of the second arm 12 of the L-shaped bracket 10 can pass. This allows the lug connector 20 to be fixed to the second arm 12 of the mounting bracket 10 particularly securely and reliably. Preferably, the bendable insertion edge 22 is cut along the longitudinal center line L, such that the left bendable insertion edge and the right bendable insertion edge each have a longitudinal opening 23 and can be bent independently of each other. The ability of the left and right bendable insertion edges to be bent independently facilitates insertion operations by the operator, enabling quick and easy installation.

[0047] exist Figure 9 A schematic diagram of another preferred embodiment of the lug connector 20 according to the present invention is shown. Figure 10 It shows Figure 9 A partial schematic diagram of the connection structure between the lug tab 20 and the mounting bracket 10 is shown. As illustrated, preferably, the bendable insertion edge 22 has an asymmetrical structure along the longitudinal center line L of the lug tab. Preferably, at the second end 20b of the lug tab 20, there is only one bendable insertion edge 22 on one side of the longitudinal center line L (thus providing a longitudinal opening 23). With this design, two lug tabs 20 with their single-sided insertion edges 22 facing each other can be simultaneously cut from the sheet material. Compared to... Figure 4 The implementation method shown, Figure 9 The illustrated embodiment can cut a greater number of lug pieces 20 from a sheet of the same area, significantly improving material utilization. Furthermore, through testing and demonstration by the inventors of this invention, even with only one side having the insertion edge 22 (see...) Figure 9 and Figure 10 According to the connection structure of this utility model, it can still be ensured that the connection structure between the lug 20 and the mounting bracket 10 has sufficient installation strength and stability.

[0048] like Figure 6 As shown, the device 100 also includes at least one wrapping portion 30 for packaging the curtain-type air bag 40 in a storage state. Preferably, the wrapping portion 30 is constructed in a strip shape. The wrapping portion 30 may be made of the same material as the curtain-type air bag 40. In an exemplary embodiment, the thickness of the fabric sheet that forms the wrapping portion 30, or the curtain-type air bag 20, is approximately 0.3 mm. Preferably (see exemplary embodiment) Figure 6The wrapping portion 30 is fixedly connected at one end to the lug tab 20 and at the other end to the mounting bracket 10, so as to install the curtain airbag 40 in its stored state onto the vehicle's support structure. Preferably, the wrapping portion 30 is configured to wrap around the outer periphery of the rolled-up and / or folded curtain airbag 40 and fix it to the first arm 11 of the mounting bracket 10 to mount the curtain airbag 40 onto the mounting bracket 10. Preferably, a mounting opening 35 is provided at the end of the wrapping portion 30 opposite to the lug tab 20 (see, for example, see...). Figure 8A After the wrapping portion 30 is rolled around the outer periphery of the curtain air bag 40, the wrapping portion 30 can be fitted onto the first arm 11 of the mounting bracket 10 via the mounting opening 35. This allows for a particularly simple and convenient detachable mounting of the curtain air bag 40 to the mounting bracket 10 without additional securing measures (e.g., no additional mechanical connection structure, adhesive structure, etc.). In a preferred embodiment, the wrapping portion 30 is positioned at a connection point 51 near the fixed connection between the lug tab 20 and the curtain air bag 40 (see...). Figure 4 For example, through suture 50 (see Figure 6 The wrapping part 30 is connected to the lug connector 20. Alternatively, the wrapping part 30 can be connected to the lug connector 20 by other suitable means, such as ultrasonic welding, thermal bonding, or adhesive. By fixing the wrapping part 30 to the lug connector 20, rather than to the curtain airbag 40, the following advantages are achieved: Firstly, in cases of misassembly or other adjustments, workers can directly disassemble and reinstall the wrapping part 30 without any contact or operation with the curtain airbag 40, significantly reducing the complexity of the adjustment process. Secondly, since the disassembly and reassembly process does not involve the curtain airbag 40 at all, it fundamentally avoids problems such as fabric damage and folding structure destruction that may result from frequent airbag handling, ensuring that the original performance and quality of the curtain airbag 40 are not affected. As a core component ensuring vehicle collision safety, the stability of the curtain airbag's performance and quality directly determines the safety protection effect. This design provides crucial protection for the airbag's performance through the optimization of the connection object. Figure 6 In the preferred embodiment shown, the wrapping portion 30 has a weak portion 60 such that when the curtain airbag 40 is inflated, if the force on the wrapping portion 30 exceeds a first threshold, the weak portion 60 can break, thereby releasing the curtain airbag 40. This allows for particularly effective airbag deployment in the event of a collision, thus providing protection for the occupants.

[0049] The technical solution of this utility model achieves significant improvements over existing technologies. On the one hand, the double-interlocking design of the longitudinal opening 23 and the transverse opening 21 of the mounting bracket 10 and the lug connector 20, especially with the complementary constraint brought by the orthogonal direction, greatly increases the threshold for preventing detachment failure. Even under severe shaking conditions, the second arm 12 of the mounting bracket 10 can ensure that it does not come out of the lug connector 20, fundamentally guaranteeing the stability of the assembly connection. On the other hand, the flexible lug connector 20 can actively fill the gaps that may occur during the assembly process with the help of the bent insertion edge 22 (the gaps may be caused by the weight of the rolled-up and / or folded curtain airbag 40, the assembly tolerances between components, and the possible differences in the folded thickness of the curtain airbag 40), further enhancing the stability and compactness of the airbag assembly.

[0050] exist Figures 8A to 8E The diagram shows a schematic of the installation process of a preferred embodiment of the device 100 for protecting vehicle occupants according to the present invention.

[0051] Figure 8A The first step of the installation process is illustrated exemplarily, at which point the first end 20a of the lug tab 20 is already fixedly connected to the upper edge of the curtain air bag 40, and the lug tab 20 is already at the connection position 51 (e.g., via the stitch 50, see...). Figure 6 It is fixedly connected to one end of the wrapping part 30. For example... Figure 8A As can be seen, the lug 20 and the wrap-around portion 30 (and the aforementioned fixed connection portion) are located at the rear, while the rolled-up and / or folded curtain airbag 40 is located at the front. Thus, in the event of a collision, the wrap-around portion 30 disconnects due to the inflation of the curtain airbag 40, allowing the curtain airbag 40 to deploy in front (towards the vehicle interior space) to protect the vehicle occupants, while the disconnected wrap-around portion 30 is located at the rear (towards the vehicle side wall).

[0052] Figure 8B The second step of the installation process is illustrated exemplarily, at which point the T-shaped second arm 12 of the mounting bracket 10 has passed through the transverse opening 21 in the lug tab 20. As can be seen in the figure, the two protrusions 16 of the second arm 12 of the mounting bracket 10 protrude beyond the width of the transverse opening 21, thereby creating a limit that prevents the mounting bracket 10 from dislodging from the transverse opening 21 of the lug tab 20.

[0053] Figure 8C The third step of the installation process is illustrated exemplarily, at which point both insertion edges 22 have been bent inwards, and the two protrusions 16 of the second arm 12 of the mounting bracket 10 have passed through the longitudinal openings 23 in the insertion edges 22.

[0054] Figure 8DThe fourth step of the installation process is illustrated exemplarily, in which the mounting bracket 10 is erected such that the second arm 12 of the mounting bracket 10, together with the second end of the lug tab 20 (especially the bent insertion edge 22), is abutted against the upper surface of the rolled-up and / or folded curtain air bag 40.

[0055] Figure 8E The fifth step of the installation process is illustrated exemplarily, in which the wrapping portion 30 is rolled up from back to front, wrapping around the outer periphery of the curtain air bag 40, and then fitted onto the first arm 11 of the mounting bracket 10 via the mounting opening 35. This facilitates the installation and fixation of the curtain air bag 40 onto the mounting bracket 10. In a preferred embodiment, see exemplarily. Figure 6 As shown, with the curtain-type airbag 40 installed, and the second arm 12 of the mounting bracket 10 passing through the transverse opening 21 and the protrusion 16 of the second arm 12 passing through the longitudinal opening 23 in the bent insertion edge 22, the fixed length of the wrapping portion 30 is set such that the second arm 12 of the mounting bracket 10, together with the lug tab 20, abuts against the surface of the rolled-up and / or folded curtain-type airbag 40. This results in a compact mounting structure for the airbag assembly, and because the wrapping portion 30 provides encirclement and compression, ensuring the second arm 12 of the mounting bracket 10, together with the lug tab 20, reliably abuts against the surface of the curtain-type airbag 40, further suppressing the assembly gap problem present in the prior art and improving the stability of the connection structure.

[0056] In addition, this utility model also proposes a curtain airbag module, which includes a device 100 for protecting vehicle occupants according to this utility model.

[0057] It should be understood that this utility model is not limited to the above description. This utility model can be modified and changed in various ways without departing from its spirit and scope.

Claims

1. A device for protecting vehicle occupants, characterized in that, The device (100) for protecting vehicle occupants includes: - Curtain-type air bag (40), the curtain-type air bag (40) having a storage state in which the curtain-type air bag is rolled up and / or folded; - Mounting bracket (10), which has an L-shaped shape formed by a first arm (11) and a second arm (12), the first arm (11) being configured for fixed connection with the support structure of the vehicle and the second arm (12) having protrusions (16) extending toward the sides respectively. - Lug tab (20), the lug tab (20) has a transverse opening (21) in the middle region through which the second arm (12) of the mounting bracket (10) passes, the lug tab (20) is fixedly connected to the curtain air bag (40) at the first end (20a) and has a bendable insertion edge (22) at the second end (20b), the bendable insertion edge (22) has at least one longitudinal opening (23), and when the second arm (12) of the mounting bracket (10) passes through the transverse opening (21) and the insertion edge (22) is bent, the protrusion (16) of the second arm (12) can pass through the longitudinal opening (23) to form a hook structure; - At least one wrapping section (30) for packaging the curtain-type air bag (40) in the storage state.

2. The apparatus according to claim 1, characterized in that, The bendable insertion edge (22) is defined at the second end (20b) of the lug tab (20) by a tear line (25).

3. The apparatus according to claim 1 or 2, characterized in that, The bendable plug edge (22) has a symmetrical structure along the longitudinal centerline (L) of the lug tab (20) and has two longitudinal openings (23) through which the two protrusions (16) of the second arm (12) of the mounting bracket (10) can pass.

4. The apparatus according to claim 1 or 2, characterized in that, The bendable plug edge (22) has an asymmetrical structure along the longitudinal centerline (L) of the lug piece.

5. The apparatus according to claim 1 or 2, characterized in that, The wrapping part (30) is fixedly connected at one end to the lug tab (20) and at the other end to the mounting bracket (10) to install the curtain airbag (40) in its storage state onto the vehicle's support structure; and / or The wrapping part (30) is connected to the lug connector (20) near the fixed connection point between the lug connector (20) and the curtain air bag (40); and / or The wrapping part (30) has a weak part (60) such that when the curtain-type air bag (40) is inflated, the weak part (60) can break when the force on the wrapping part (30) is greater than a first threshold, thereby releasing the curtain-type air bag (40).

6. The apparatus according to claim 1 or 2, characterized in that, The lug connector (20) has a multi-layer structure; and / or Multiple lugs (20) are evenly spaced apart and fixed at the upper edge of the curtain-type air bag (40).

7. The apparatus according to claim 1 or 2, characterized in that, The protrusion (16) of the second arm (12) of the mounting bracket (10) has a rectangular shape.

8. The apparatus according to claim 1 or 2, characterized in that, The width W1 of the transverse opening (21) in the middle region of the lug tab (20) is 1 / 4 to 1 / 2 of the width W2 of the lug tab.

9. The apparatus according to claim 1 or 2, characterized in that, With the curtain airbag (40) installed, and with the second arm (12) of the mounting bracket (10) passing through the transverse opening (21) and the protrusion (16) of the second arm (12) passing through the longitudinal opening (23) in the bent insertion edge (22), the fixed length of the wrapping part (30) is set such that the second arm (12) of the mounting bracket (10), together with the lug tab (20), abuts against the surface of the rolled-up and / or folded curtain airbag (40).

10. The apparatus according to claim 3, characterized in that, The bendable plug edge (22) is cut along the longitudinal centerline (L) so that the bendable plug edge on the left and the bendable plug edge on the right each have a longitudinal opening (23) and can be bent independently of each other.

11. The apparatus according to claim 4, characterized in that, At the second end (20b) of the lug (20), there is a bendable insertion edge (22) only on one side of the longitudinal centerline (L).

12. The apparatus according to claim 6, characterized in that, The lug piece (20) has three or more layers of fabric.

13. The apparatus according to claim 7, characterized in that, The protrusion (16) has a chamfer at its end.

14. The apparatus according to claim 8, characterized in that, The length W3 of the protrusion (16) of the second arm (12) of the mounting bracket (10) is 1 / 4 to 1 / 3 of the width W2 of the lug.

15. A curtain-type airbag module, characterized in that, The curtain airbag module includes a device (100) for protecting vehicle occupants according to any one of claims 1 to 14.

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