Airbag for a vehicle

Abstract

The present application relates to a safety airbag for a vehicle, comprising a gas bag having a gas bag body (4), a tab (1) and a binding member (2) which winds and binds the gas bag body in a folded state, the tab comprising a suspension section (11), a connection section (12) for connection with the gas bag body and a resting section (13) for resting on the folded gas bag body, in a flattened state of a tab panel for the tab, the connection section and the resting section being separated by a partially annular cutting line (3) having an open side towards the suspension section, such that the resting section forms a loop which defines a window, the binding member being held with its first end (21) on the connection section, passing through the window of the resting section, pressing a lateral portion (16) of the resting section away from the suspension section on the folded gas bag body and being held with its second end (22) on the connection section in the event of winding the folded gas bag body.

Description

Technical Field

[0001] This application relates to a safety airbag for a vehicle, particularly a side curtain airbag. Background Technology

[0002] Side curtain airbags, also known as curtain airbags, are widely known in vehicle passive safety technology. Side curtain airbags are primarily used to protect the head of occupants in the event of a side collision. In practice, known side curtain airbags may include separate hangers and separate retainers or brackets. The folded airbag is held in place by the retainer and secured to the vehicle body via the hangers. Typically, the retainer can be injection molded or molded metal. Utility Model Content

[0003] The objective of this application is to provide a vehicle airbag in which a novel airbag structure enables effective restraint and suspension of the folded airbag. Furthermore, it eliminates the need for components such as injection-molded or metal-formed parts as known in the prior art.

[0004] The task is accomplished using a vehicle airbag comprising an airbag having an airbag body, an ear loop, and a restraint. The restraint wraps around and restrains the airbag body in a folded state. The ear loop includes a suspension section, a connection section for connecting to the airbag body, and a resting section for resting against the folded airbag body. In the flattened state of the ear loop piece, the connection section and the resting section are separated by a partially annular cut line having an opening side facing the suspension section, such that the resting section forms a loop defining a window. The restraint holds the first end of the restraint on the connection section, passes through the window of the resting section, and presses the lateral portion of the resting section away from the suspension section against the folded airbag body. Furthermore, when wrapped around the folded airbag body, the restraint holds the second end of the restraint on the connection section.

[0005] In such airbags, injection-molded or metal-formed components are no longer necessarily required as supports. In advantageous embodiments, the entire airbag, including the airbag body, restraints, and loops, can be constructed solely of flexible materials. Furthermore, innovative designs for the loops and restraints allow for effective restraint and suspension of the folded airbag.

[0006] In some embodiments, the partially annular cut line is a U-shaped cut line, the U-shape having an opening side facing the air bag body.

[0007] In some embodiments, the partially circular cutting line may also be a C-shaped cutting line.

[0008] In some embodiments, the restraint has a first transverse cut at its first end, the restraint being fitted onto the connecting section with the first transverse cut until the first transverse cut reaches the root region of the connecting section adjacent to the suspension section and thus the first end of the restraint is held by the connecting section.

[0009] In some embodiments, the connecting section has a pair of opposing notches formed by the cutting line, the pair of notches forming the waist of the connecting section, and the restraint has a second transverse cut at its second end, the restraint being fitted onto the connecting section with the second transverse cut until the second transverse cut reaches the pair of notches and thus the second end of the restraint is held by the connecting section.

[0010] In some embodiments, the loop is a separate component from the airbag body and is connected to the airbag body in the connecting section, particularly by sewing thread. Alternatively, the connection can also be achieved by rivets.

[0011] In some embodiments, the suspension section of the lug has a mounting hole, by means of which the lug can be held on the vehicle. For example, a fastener can be used, which passes through the mounting hole and is secured to the vehicle body.

[0012] In some embodiments, the restraint has a predetermined break point. During the inflation of the airbag, the restraint can break at the predetermined break point, thereby releasing the folded airbag, which can then fully unfold and inflate to provide protection for the occupant, especially in the event of a vehicle collision.

[0013] In some embodiments, the airbag is a side curtain airbag having multiple assemblies of the lugs and the restraints, the multiple assemblies being distributed along the extension length of the side curtain airbag.

[0014] In some embodiments, the loops and the restraints are each composed of multiple fused pieces. In this case, the respective pieces may include multiple layers fused together to give the pieces a certain rigidity and stiffness.

[0015] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0016] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention to further explain its characteristics, features, advantages, and implementation methods. It is self-evident that the present invention is not limited to the specific embodiments.

[0017] Figure 1 This is a partial perspective view of an airbag according to an exemplary embodiment of the present invention.

[0018] Figure 2 yes Figure 1 Side view of an airbag.

[0019] Figure 3 yes Figure 1 A partial view of the airbag in its flattened state.

[0020] Figure 4 yes Figure 1 A schematic diagram of the restraint components of an airbag.

[0021] Figure 5 yes Figure 1 A side view of an airbag during assembly.

[0022] Figure 6 yes Figure 1 A partial view of the airbag in its flattened state.

[0023] Figure 7 This is when the ear loops are oriented inverted relative to the air bag body. Figure 6 The corresponding partial view.

[0024] Figure 8 yes Figure 7 A magnified view of a portion of the image.

[0025] Figure 9 This is a diagram for adjusting the ear loops. Detailed Implementation

[0026] Several exemplary embodiments will now be described more fully with reference to the accompanying drawings. It should be understood that elements not essential for understanding the invention may be omitted from the drawings for ease of illustration and understanding. In the drawings, the same reference numerals may denote the same parts or parts that function identically. Numerous specific details, such as examples of specific parts, devices, and methods, are set forth in the following description to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that not all of these specific details are necessarily required. The exemplary embodiments should not be construed as limiting.

[0027] Figure 1 and Figure 2These are partial perspective and side views of an airbag 100 according to an exemplary embodiment of the present invention. Here, the folded airbag body 4 is described only along a portion of its length. Multiple assemblies 10 can be provided along the extended length of the complete airbag body 4, each assembly 10 including a hanging ear 1 and a restraining member 2. The airbag 100 can be configured as a side curtain airbag or other types of airbags. The hanging ear 1 and the restraining member 2 are separate components from the airbag body 4. The airbag can be suspended from the vehicle body via the hanging ear 1, and the folded airbag body 4 can be wrapped and restrained via the restraining member 2. As known from the prior art, the airbag body 4 can be folded in various ways, such as roll-up folding, Z-shaped folding, hybrid folding, etc.

[0028] Figure 6 yes Figure 1 A partial view of the airbag 100 in its flattened state. Two lugs 1 spaced apart along the extended length of the airbag are visible here.

[0029] As by Figure 3 As can be seen, the hanging lug 1 includes a suspension section 11, a connecting section 12 for connecting to the airbag body 4, and an abutting section 13 for resting on the folded airbag body 4. The suspension section 11 may have a mounting hole 14, through which the hanging lug 1 can be held to the vehicle body, for example by means of fasteners passing through the mounting hole 14 and fixed to the vehicle body. The edge of the airbag body 4 is indicated here by line 5.

[0030] The loop 1 is constructed from a single, integral loop piece. In its flattened state, the connecting section 12 and the overlapping section 13 are separated by a partially annular cut line 3 (generally U-shaped in the current embodiment), the partially annular section having an opening facing the hanging section 11, such that the overlapping section 13 forms a loop defining a window. The connecting section 12 can be connected to the airbag body 4, for example, via a schematically shown sewing line 15.

[0031] As by Figure 2 and Figure 5As can be seen, the restraint member 2 is held on the connecting section 12 with its first end 21, passing through the window of the overlapping section 13, pressing the lateral portion 16 of the overlapping section 13 away from the suspension section 11 onto the folded air bag body 4, and is held on the connecting section 12 with its second end 22 while wrapped around the folded air bag body 4. For this purpose, the restraint member 2 may have a first lateral cut 23 on its first end 21, and the restraint member 2 is fitted onto the connecting section 12 with the first lateral cut 23 until the first lateral cut 23 reaches the root region of the connecting section 12 adjacent to the suspension section 11, and thus the first end 21 of the restraint member 2 is held by the connecting section 12. The restraint member 2 may have a second lateral cut 24 on its second end 22, and the restraint member 2 is fitted onto the connecting section 12 with the second lateral cut 24. To securely hold the second end 22 of the restraint member 2, the connecting section 12 may have a pair of opposing notches 17 formed by a cutting line 3, the pair of notches 17 forming a waist of the connecting section 12. A second transverse cut 24 of the restraint member 2 can reach the pair of notches 17, or the waist of the connecting section 12, and thus the second end 22 of the restraint member 2 is held by the front half 18 of the connecting section 12, defined by the pair of notches 17. The restraint member 2 may have a predetermined break point 25. During the inflation of the airbag, the restraint member 2 can break at the predetermined break point 25, thus releasing the folded airbag, which can then fully unfold and inflate to provide protection for the occupant, especially in the event of a vehicle collision.

[0032] The lug 1 and the restraint 2 can each be composed of multiple layers of fused fabric pieces. In this case, the corresponding fabric pieces can include multiple layers that are fused together to give the fabric pieces a certain rigidity and hardness.

[0033] The innovative design of the airbag loop according to this utility model can provide advantageous benefits in the manufacture of airbags. Figure 6 Compared to the normal orientation of the air bag body 4, the loop 1 is as follows: Figure 7 and Figure 8 As shown, during the manufacturing process of an airbag, it is possible to unintentionally oriented the loop 1 upside down relative to the airbag body 4. This upside-down orientation can be corrected by methods such as... Figure 9 The measures shown should be used to remedy the situation. For example, in Figure 9 As indicated by arrow P, the suspension section 11 of the lug 1 can be pulled out through the window of the overlap section 13. Now, the suspension section 11 can continue to be used as a normal suspension section, and the overlap section 13 can continue to be used as a normal overlap section.

[0034] It should be noted that the terminology used herein is for illustrative purposes only and is not intended to limit the disclosure. The singular forms “a” and “the one” as used herein should include the plural forms unless the context explicitly states otherwise. It is understood that the terms “comprising” and “including,” and other similar terms, when used in the application documents, specifically describe the presence of the stated operation, element, and / or component, without excluding the presence or addition of one or more other operations, elements, components, and / or combinations thereof. The term “and / or” as used herein includes all arbitrary combinations of one or more of the associated listed items. In the description of the drawings, similar reference numerals always denote similar elements.

[0035] The thickness of the elements in the accompanying drawings may be exaggerated for clarity. It is also understood that if an element is described as being on, coupled to, or connected to another element, then the element may be directly formed on, coupled to, or connected to the other element, or there may be one or more intermediate elements between them. Conversely, if the expressions "directly on," "directly coupled to," and "directly connected to" are used herein, it indicates that there is no intermediate element. Other terms used to describe relationships between elements should be interpreted similarly, such as "between" and "directly between," "attached" and "directly attached," "adjacent" and "directly adjacent," etc.

[0036] Terms such as “top,” “bottom,” “above,” “below,” “over,” “under,” etc., are used to describe the relationship of one element, layer, or region relative to another element, layer, or region, as shown in the accompanying drawings. It is understood that these terms should also encompass other orientations of the device in addition to those described in the accompanying drawings.

[0037] It is understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Therefore, a first element may be referred to as a second element without departing from the teachings of this inventive concept.

[0038] It can also be considered that all the exemplary embodiments disclosed herein can be arbitrarily combined with each other. Finally, it should be noted that the above embodiments are only used to understand the present invention and do not constitute a limitation on the protection scope of the present invention. For those skilled in the art, modifications can be made based on the above embodiments, and these modifications do not depart from the protection scope of the present invention.

Claims

1. An airbag for a vehicle, comprising an airbag having an airbag body (4), a loop (1), and a restraint member (2), the restraint member being wound around and securing the airbag body in a folded state, characterized in that, The ear loop includes a suspension section (11), a connection section (12) for connecting to the air bag body, and a resting section (13) for resting on the folded air bag body. In the flattened state of the ear loop piece, the connection section and the resting section are separated by a partially annular cut line (3), the partially annular having an opening side facing the suspension section, such that the resting section forms a loop, the loop defining a window. The restraint is held on the connection section at its first end (21), through the window of the resting section, pressing the lateral portion (16) of the resting section away from the suspension section onto the folded air bag body, and held on the connection section at its second end (22) when wrapped around the folded air bag body.

2. The airbag for a vehicle according to claim 1, characterized in that, The partially annular cutting line (3) is a U-shaped cutting line, the U-shape having an opening side facing the air bag body.

3. The airbag for a vehicle according to claim 1 or 2, characterized in that, The restraint (2) has a first transverse cut (23) at its first end, the restraint being fitted onto the connecting section (12) with the first transverse cut until the first transverse cut reaches the root region of the connecting section adjacent to the suspension section and thus the first end (21) of the restraint is held by the connecting section.

4. The airbag for a vehicle according to claim 1 or 2, characterized in that, The connecting section (12) has a pair of opposing notches (17) formed by the cutting line (3), the pair of notches forming the waist of the connecting section, the restraint (2) having a second transverse cut (24) at its second end (22), the restraint being fitted onto the connecting section with the second transverse cut until the second transverse cut reaches the pair of notches and thus the second end of the restraint is held by the connecting section.

5. The airbag for a vehicle according to claim 1 or 2, characterized in that, The loop (1) is a separate part from the air bag body (4) and is connected to the air bag body in the connecting section (12) by a sewing thread (15).

6. The airbag for a vehicle according to claim 1 or 2, characterized in that, The suspension section (11) of the lug (1) has a mounting hole (14) by means of which the lug can be held on the vehicle.

7. The airbag for a vehicle according to claim 1 or 2, characterized in that, The restraint (2) has a predetermined fracture point (25).

8. The airbag for a vehicle according to claim 1 or 2, characterized in that, The airbag is a side curtain airbag, which has multiple assemblies (10) of the lugs and the restraints, which are distributed along the extension length of the side curtain airbag.

9. The airbag for a vehicle according to claim 1 or 2, characterized in that, The loops and the restraints are each made of multiple fused pieces.

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