Airbag assembly and curtain airbag

Abstract

An airbag assembly, comprising: a folded airbag (10) and a hanging lug (20) connected to the airbag, the hanging lug being folded relative to the airbag, and a tail end (20b) thereof being attached to the airbag; a mounting bracket (30), one end thereof passing through the hanging lug and extending between the hanging lug and the airbag, and the other end thereof being exposed from the hanging lug; and a flexible binding member (40), a first end (40a) being connected to the hanging lug, a body (40b) being wound around the airbag and pressing on the hanging lug, and a second end (40c) being hooked on the mounting bracket. Further provided is a curtain airbag provided with the airbag assembly. In the airbag, the flexible binding member is used instead of an adhesive tape, such that fixation of the mounting bracket relative to the airbag is effectively achieved, the operation is simple, and the airbag is efficient and convenient; and the mounting bracket cannot be displaced during an assembly process of the flexible binding member, thereby ensuring the stable position of the mounting bracket, so as to accurately and firmly assemble the airbag assembly onto a vehicle by means of the mounting bracket.

Description

Airbag assembly and curtain airbag Technical Field

[0001] The present disclosure relates to the technical field of airbags, and in particular to an airbag assembly and a curtain airbag. Background Art

[0002] During airbag assembly, the airbag bag must be folded and then mounted in the vehicle using a mounting bracket connected to the bag's mounting lugs. To prevent the mounting bracket from moving relative to the bag and ensure the airbag remains stable during normal driving, tape is currently used to secure the mounting bracket around the bag and mounting lugs.

[0003] The current solution of using tape to fix the mounting bracket has the following problems:

[0004] Due to the high viscosity of the tape, it can easily stick during winding, causing the mounting bracket to shift. Furthermore, the tape is a separate component from the airbag bag and mounting bracket, requiring careful attention to where to start winding the tape, how many turns to wind, and ensuring it is evenly wound. This results in low efficiency and inconvenience.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0006] In view of this, the present disclosure provides an airbag assembly and a curtain airbag, which use a flexible restraint to replace the current tape. The first end of the flexible restraint is connected to the ear of the airbag, the body is wrapped around the airbag and presses the ear, and the second end is hooked on the mounting bracket, which can effectively achieve the fixation of the mounting bracket relative to the airbag. The operation is simple, efficient and convenient, and the flexible restraint will not cause the mounting bracket to shift during the assembly process, ensuring the stability of the mounting bracket position, so that the airbag assembly can be accurately and firmly assembled to the appropriate position of the vehicle through the mounting bracket.

[0007] One aspect of the present disclosure provides an airbag assembly, comprising: a folded airbag and a hanging ear connected to the airbag, the hanging ear being folded relative to the airbag and with its end attached to the airbag; a mounting bracket, one end of which passes through the hanging ear and extends between the hanging ear and the airbag, and the other end is exposed from the hanging ear; a flexible restraining member, a first end of which is connected to the hanging ear, a body of which is wrapped around the airbag and presses the hanging ear, and a second end of which is hung on the mounting bracket.

[0008] In some embodiments, a perforated portion of the hanging ear for the mounting bracket to pass through is located above a folded portion of the hanging ear, and a connection portion between the flexible binding member and the hanging ear is located below the folded portion.

[0009] In some embodiments, the first end of the flexible binding member is sewn to the ear loop.

[0010] In some embodiments, the body of the flexible restraint presses portions of the hanging ears located on both sides of the mounting bracket.

[0011] In some embodiments, the flexible restraining member includes two restraining straps, the head ends of the two restraining straps are connected and the tail ends of the two restraining straps are connected, and the two restraining straps respectively press the parts of the hanging ear located on both sides of the mounting bracket.

[0012] In some embodiments, the flexible restraint is provided with at least one cut hole, and the at least one cut hole is distributed in the area of ​​the body and the second end of the flexible restraint, and one of the at least one cut hole is used for the mounting bracket to pass through and hang the mounting bracket.

[0013] In some embodiments, one of the at least one cutout exposes an anti-twist wire of the airbag bag.

[0014] In some embodiments, a tear line is provided between one of the at least one cutout and an edge of the flexible restraint.

[0015] In some embodiments, the at least one cutout is one cutout or two cutouts.

[0016] In some embodiments, the flexible restraint is wound in the opposite direction relative to the ear.

[0017] In some embodiments, the second end of the flexible restraint member hooks onto the mounting bracket and then falls onto the first end of the flexible restraint member.

[0018] In some embodiments, a first end of the flexible restraint is provided with a notch, and the second end of the flexible restraint passes through the notch and extends between the flexible restraint and the airbag bag.

[0019] In some embodiments, the flexible restraint is a flexible strap.

[0020] Yet another aspect of the present disclosure provides a curtain airbag, wherein the curtain airbag is configured with the airbag assembly according to any of the above embodiments.

[0021] The beneficial effects of the present disclosure compared with the prior art include at least:

[0022] The present invention uses a flexible restraint instead of tape. The first end of the flexible restraint is connected to the hanging ear of the airbag bag, the main body is wrapped around the airbag bag and presses the hanging ear, and the second end is hung on the mounting bracket, thereby effectively fixing the mounting bracket relative to the airbag bag. The operation is simple, efficient and convenient.

[0023] After the flexible restraint is assembled, the movement of the mounting bracket along the winding direction is limited by the connection between the hook and the airbag bag and the connection between the flexible restraint and the hook, and the lateral movement of the mounting bracket is limited by the flexible restraint, thereby achieving the fixation of the mounting bracket.

[0024] During the assembly of the flexible restraint, the mounting bracket will not be displaced due to problems such as adhesion and pulling, ensuring the stability of the mounting bracket position so that the airbag assembly can be accurately and firmly assembled to the appropriate position of the vehicle through the mounting bracket.

[0025] In addition, the bearing pressure of the flexible restraint is within an appropriate range, so as to ensure that the airbag bag can explode smoothly when needed, and can also cope with the vibration and bumps caused by normal driving of the vehicle, and keep the airbag bag stable when the vehicle is driving normally.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0028] FIG1 is a schematic diagram showing the assembly structure of an airbag assembly according to an embodiment of the present disclosure;

[0029] FIG2 is a schematic top view of the structure of the airbag assembly in a state where the flexible restraining member is deployed according to an embodiment of the present disclosure;

[0030] FIG3 is a schematic cross-sectional view of the airbag assembly in a state where the flexible restraining member is deployed, according to an embodiment of the present disclosure;

[0031] FIG4 is a schematic diagram showing a top view of a flexible restraining member in an embodiment of the present disclosure;

[0032] FIG5 is a schematic diagram showing the assembly structure of the air bag assembly using the flexible restraining member shown in FIG4 ;

[0033] FIG6 is a schematic top view of another flexible restraining member according to an embodiment of the present disclosure;

[0034] FIG7 is a schematic diagram showing the assembly structure of the air bag assembly using the flexible restraining member shown in FIG6;

[0035] FIG8 is a schematic top view of another flexible restraining member according to an embodiment of the present disclosure;

[0036] FIG9 is a schematic diagram showing a top view of another flexible restraining member in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures represent identical or similar structures, and thus a repeated description thereof will be omitted.

[0038] The terms "first," "second," and similar terms used in the specific description do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "left," "right," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are intended solely for ease of description and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. Furthermore, in the description of the present disclosure, when a device is said to be "connected" to another device, this includes not only direct connections but also indirect connections through other components.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present disclosure and features in different embodiments may be combined with each other.

[0040] Figure 1 illustrates the assembly structure of the airbag assembly, Figure 2 illustrates the top view structure of the airbag assembly when the flexible restraint is unfolded, Figure 3 illustrates the cross-sectional structure of the airbag assembly when the flexible restraint is unfolded, Figure 4 illustrates the top view structure of a flexible restraint, Figure 5 illustrates the assembly structure of the airbag assembly using the flexible restraint shown in Figure 4, Figure 6 illustrates the top view structure of another flexible restraint, Figure 7 illustrates the assembly structure of the airbag assembly using the flexible restraint shown in Figure 6, and Figures 8 and 9 illustrate the top view structures of two other flexible restraints.

[0041] 1 to 9 , the airbag assembly provided by the embodiment of the present disclosure includes:

[0042] A folded airbag bag 10 and a hanging ear 20 connected to the airbag bag 10, wherein the hanging ear 20 is folded relative to the airbag bag 10 and the end 20b is attached to the airbag bag 10;

[0043] The mounting bracket 30 has one end passing through the hanging ear 20 and extending between the hanging ear 20 and the airbag bag 10, and the other end exposed outside the hanging ear 20;

[0044] The flexible restraining member 40 has a first end 40 a connected to the hanging ear 20 , a body 40 b wrapped around the airbag 10 and pressing the hanging ear 20 , and a second end 40 c hooked on the mounting bracket 30 .

[0045] The end 20b of the hook 20 can be provided with relatively hard, hooked bristles to facilitate attachment to the airbag 10. The end 20b of the hook 20 can also be attached to the airbag 10 by other suitable means, such as gluing or sewing. The mounting bracket 30 can be L-shaped or any other suitable shape, as long as one end is secured to the hook 20 and the airbag 10, while the other end is exposed for assembly with the vehicle.

[0046] The present disclosure uses a flexible restraint 40 instead of tape. The first end 40a of the flexible restraint 40 is connected to the ear 20 of the airbag bag 10, the main body 40b is wrapped around the airbag bag 10 and presses the ear 20, and the second end 40c is hung on the mounting bracket 30, thereby effectively fixing the mounting bracket 30 relative to the airbag bag 10. The operation is simple, efficient and convenient.

[0047] After the flexible restraint 40 is assembled (as shown in Figures 1, 5, and 7), the mounting bracket 30 is restricted in its rotational direction along the +Y direction by the connection between the flexible restraint 40 and the lug 20, and in its rotational direction along the -Y direction by the connection between the lug 20 and the airbag 10. In the lateral direction Z, the flexible restraint 40 restricts the left and right movement of the mounting bracket 30. This ensures the mounting bracket 30 is securely fixed.

[0048] During the assembly of the flexible restraining member 40 , the mounting bracket 30 will not be displaced due to problems such as adhesion and pulling, ensuring that the position of the mounting bracket 30 is stable so that the airbag assembly can be accurately and firmly assembled to the appropriate position of the vehicle through the mounting bracket 30 .

[0049] In addition, the bearing pressure of the flexible restraint 40 is within an appropriate range, so as to ensure that the airbag bag 10 can be successfully exploded when needed, and can also cope with the vibration and bumps caused by normal driving of the vehicle, and maintain the stability of the airbag bag 10 when the vehicle is driving normally.

[0050] In some embodiments, the perforation 22 of the ear 20 through which the mounting bracket 30 passes is located above the folded portion 23 of the ear 20, and the connection portion 24 between the flexible restraining member 40 and the ear 20 is located below the folded portion 23. This ensures that the mounting bracket 30 and the flexible restraining member 40 do not interfere with each other and are separated by the folded portion 23. Furthermore, the connection between the flexible restraining member 40 and the ear 20 is close to the airbag 10, maintaining the stability of the starting point (i.e., the first end 40a) of the flexible restraining member 40. Furthermore, the mounting bracket 30 can pass through the perforation 22 and easily extend between the ear 20 and the airbag 10.

[0051] In some embodiments, the first end 40a of the flexible binding member 40 is sewn to the hanging ear 20. By sewing, the connection between the flexible binding member 40 and the hanging ear 20 is achieved conveniently and stably.

[0052] Among them, the seam position (i.e., the connection portion 24) where the first end 40a of the flexible restraint 40 is sewn to the ear 20 can be adjusted according to the required folding degree of the ear 20. The folding degree of the ear 20 will affect the deployment direction of the airbag 10. The ear 20 can start to fold from the seam position.

[0053] In some embodiments, the body 40 b of the flexible restraint 40 presses the portions of the mounting ears 20 located on both sides of the mounting bracket 30 . In this way, the left and right movement of the mounting bracket 30 along the lateral direction Z is effectively restricted by the flexible restraint 40 .

[0054] In some embodiments, the flexible restraint 40 includes two restraint straps 400, which are connected at their head and tail ends. The two restraint straps 400 respectively press against the portions of the hanging ear 20 located on either side of the mounting bracket 30. The head ends of the two restraint straps 400 are connected to form the first end 40a of the flexible restraint 40, and the tail ends of the two restraint straps 400 are connected to form the second end 40c of the flexible restraint 40. Alternatively, the head ends of the two restraint straps 400 are connected to form the second end 40c of the flexible restraint 40, and the tail ends of the two restraint straps 400 are connected to form the first end 40a of the flexible restraint 40. The flexible restraint 40 includes two restraint straps 400, which are connected at their head and tail ends. This facilitates the first end 40a of the flexible restraint 40 to be connected to the hanging ear 20, the body 40b to press against both sides of the hanging ear 20 via the two restraint straps 400, and the second end 40c to be hooked onto the mounting bracket 30.

[0055] The two restraining belts 400 may be connected as one piece, so that the flexible restraining member 40 forms an integral component; or, the two restraining belts 400 may be connected by other suitable means.

[0056] In some embodiments, it is also possible to set a cut hole on the flexible binding member 40 so that the first end 40a of the flexible binding member 40 is connected to the hanging ear 20, the main body 40b presses the two sides of the hanging ear 20 through two binding belts 400, and the second end 40c hangs the mounting bracket 30.

[0057] 4 , 6 , 8 , and 9 , and in conjunction with other figures, the flexible binding member 40 is provided with at least one cutout 480. The at least one cutout 480 is distributed in the region of the body 40 b and the second end 40 c of the flexible binding member 40. One of the at least one cutout 480 allows the mounting bracket 30 to pass through and be hooked on the mounting bracket 30. Specifically, the cutout located near the second end 40 c of the at least one cutout 480 allows the mounting bracket 30 to pass through and be hooked on the mounting bracket 30.

[0058] Furthermore, one of the at least one cutout hole 480 exposes the anti-twist wire 100 of the airbag 10. The anti-twist wire 100 ensures that the airbag 10 is positioned accurately during installation.

[0059] Furthermore, a tear line 490 is provided between one of the at least one cutouts 480 and the edge of the flexible restraining member 40. When the airbag 10 is deployed, the tear line 490 acts as a tearing opening, allowing the flexible restraining member 40 to tear quickly, thereby enabling the airbag 10 to deploy smoothly. The tear line 490 may be composed of multiple tangent lines. Along the lateral direction Z, the width W of the flexible restraining member 40 is approximately 10 mm to 25 mm, and the length L of a single tangent line of the tear line 490 is approximately 2 mm to 3 mm.

[0060] In a specific implementation, the at least one cutout 480 can be designed as a single cutout, forming the flexible restraining member 40 shown in FIG. 4 or FIG. 6 ; alternatively, the at least one cutout 480 can be designed as two cutouts, forming the flexible restraining member 40 shown in FIG. 8 or FIG. 9 ; alternatively, the at least one cutout 480 can be designed as three or more cutouts. In the case where the at least one cutout 480 is designed as multiple cutouts, multiple cutouts facilitate processing and prevent positional deviation of the flexible restraining member 40 due to a single cutout being too large, allowing the flexible restraining member 40 to stably restrain the airbag bag 10, press against the portions of the hook 20 located on both sides of the mounting bracket 30, and have the second end 40c hook onto the mounting bracket 30.

[0061] In some embodiments, the flexible binding member 40 is wound in the opposite direction relative to the hanging ear 20. In this way, the flexible binding member 40 can be effectively fixed to the mounting bracket 30 by winding the airbag bag 10 once.

[0062] In some embodiments, the second end 40 c of the flexible restraint 40 is hooked on the mounting bracket 30 and then falls on the first end 40 a of the flexible restraint 40 , so that the flexible restraint 40 completely wraps around the airbag 10 .

[0063] In some embodiments, the first end 40a of the flexible restraint 40 is provided with a notch 40a' (see Figures 6 and 7 ), and the second end 40c of the flexible restraint 40 passes through the notch 40a' and extends between the flexible restraint 40 and the airbag 10. Inserting the second end 40c of the flexible restraint 40 into the first end 40a prevents the second end 40c of the flexible restraint 40 from tilting, thereby enhancing the securing effect and preventing interference with other components that could affect stability.

[0064] In some embodiments, the flexible binding member 40 is a flexible strap. The flexible strap can be made of a suitable material such as nylon to achieve a flexible binding effect, fix the mounting bracket 30, and ensure that the bearing force is within a suitable range.

[0065] An embodiment of the present disclosure further provides a curtain airbag (CAB), which is configured with the airbag assembly described in any of the above embodiments.

[0066] The curtain airbag is equipped with the above-mentioned airbag bag assembly, which can fix the mounting bracket 30 relative to the airbag bag 10 through the flexible restraint 40, which is simple to operate, efficient and convenient; and the flexible restraint 40 will not cause the mounting bracket 30 to shift due to problems such as adhesion and pulling during the assembly process, ensuring that the position of the mounting bracket 30 is stable, so that the entire curtain airbag can be accurately and firmly assembled to the top position of the vehicle through the mounting bracket 30; in addition, the bearing pressure of the flexible restraint 40 is within an appropriate range, so as to ensure that the curtain airbag can be successfully exploded when needed, and can also cope with the vibration and bumps caused by normal driving of the vehicle, and maintain the stability of the curtain airbag when the vehicle is driving normally.

[0067] The airbag assembly disclosed herein can also be applied to other types of airbags, such as passenger / front passenger airbags, front and rear side airbags, and knee airbags. The flexible restraint 40 can be connected to the hook 20 of the airbag 10 through a first end 40a thereof, the body 40b being wrapped around the airbag 10 and pressing against the hook 20, and the second end 40c being hooked onto the mounting bracket 30. This effectively secures the mounting bracket 30 relative to the airbag 10. The assembly process is simple, efficient, and convenient. Furthermore, the flexible restraint 40 does not cause the mounting bracket 30 to shift during assembly, ensuring the mounting bracket 30 is positioned stably. The airbag assembly can be accurately and securely assembled to the appropriate position of the vehicle through the mounting bracket 30. Furthermore, the bearing capacity of the flexible restraint 40 is within an appropriate range, ensuring that the airbag 10 can be deployed smoothly when needed while also being able to withstand vibrations and bumps caused by normal vehicle operation, maintaining the stability of the airbag during normal vehicle operation.

[0068] The above content is a further detailed description of the present disclosure in conjunction with specific preferred embodiments, and the specific implementation of the present disclosure should not be considered to be limited to these descriptions. For those skilled in the art of the present disclosure, without departing from the concept of the present disclosure, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present disclosure.

Claims

1. An air bag assembly, characterized in that: include: A folded airbag bag and a hanging ear connected to the airbag bag, wherein the hanging ear is folded relative to the airbag bag and the end thereof is attached to the airbag bag; A mounting bracket, one end of which passes through the hanging ear and extends between the hanging ear and the airbag bag, and the other end is exposed outside the hanging ear; A flexible restraining member has a first end connected to the hanging ear, a body wound around the airbag and pressing the hanging ear, and a second end hooked on the mounting bracket.

2. The air bag assembly according to claim 1, characterized in that: The perforation portion of the hanging ear for the mounting bracket to pass through is located above the folded portion of the hanging ear, and the connection portion between the flexible binding member and the hanging ear is located below the folded portion.

3. The air bag assembly according to claim 1, characterized in that: The first end of the flexible binding member is sewn to the ear loop.

4. The air bag assembly according to claim 1, characterized in that: The body of the flexible binding member presses the parts of the hanging ears located on both sides of the mounting bracket.

5. The air bag assembly according to claim 4, characterized in that: The flexible restraining member includes two restraining belts, the head ends of the two restraining belts are connected and the tail ends are connected, and the two restraining belts respectively press the parts of the hanging ear located on both sides of the mounting bracket.

6. The air bag assembly according to claim 1, characterized in that: The flexible binding member is provided with at least one cut hole, and the at least one cut hole is distributed in the area of ​​the body and the second end of the flexible binding member. One of the at least one cut hole is used for the mounting bracket to pass through and hang the mounting bracket.

7. The air bag assembly according to claim 6, characterized in that: One of the at least one cutouts exposes the anti-twist wire of the airbag bag.

8. The air bag assembly according to claim 6, characterized in that: A tear line is provided between one of the at least one cutout and an edge of the flexible binding.

9. The air bag assembly according to claim 6, characterized in that: The at least one cut hole is one cut hole or two cut holes.

10. The air bag assembly according to claim 1, wherein: The flexible restraining member is wound in the opposite direction relative to the hanging ear.

11. The air bag assembly according to claim 1, characterized in that: The second end of the flexible binding member hooks the mounting bracket and then falls onto the first end of the flexible binding member.

12. The air bag assembly according to claim 11, wherein: A notch is provided at the first end of the flexible binding member, and the second end of the flexible binding member passes through the notch and extends between the flexible binding member and the airbag bag.

13. The airbag assembly according to any one of claims 1 to 12, characterized in that: The flexible restraining member is a flexible strap.

14. A curtain airbag, characterized in that: The curtain airbag is equipped with an airbag bag assembly according to any one of claims 1 to 13.

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