Mesh cloth structure for safety air bag frame, safety air bag frame and vehicle

Abstract

The utility model provides a screen cloth structure used for a safety air bag frame, the safety air bag frame and a vehicle, the screen cloth structure used for the safety air bag frame comprises a structure body, and the structure body comprises a top plate and side plates arranged on the two opposite sides of the top plate. Wherein one end, close to the top plate, of the side plate is provided with a hinge part, the hinge part is folded on one side of the side plate, the closed end of the hinge part is sewn on the side plate through a sewing thread, and the top plate is pushed to damage the sewing thread so as to be synchronously unfolded with the hinge part. According to the screen cloth structure for the safety air bag frame, the top plate and the side plates arranged on the two opposite sides of the top plate are included, the screen cloth structure can be better matched with the safety air bag frame in the prior art, the screen cloth structure and the safety air bag frame can be conveniently formed together in an injection molding mode, and the closed ends of the hinge parts are sewn on the side plates through sewing threads. The stability of the hinge part can be kept, the hinge part is prevented from being separated from the side plate, the unfolding of the air bag can be prevented from being influenced in the using process, and the product percent of pass of the mesh structure can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to a mesh structure for a safety airbag frame. At the same time, the utility model also relates to a safety airbag frame provided with the mesh structure for the safety airbag frame, and a vehicle provided with the safety airbag frame. Background Art

[0002] The mesh of the instrument panel safety airbag frame is an indispensable part of the vehicle safety system. It is usually made of high-strength, high-temperature resistant, and low-permeability fiber materials, with a multi-layer structure and special design. And the mesh of the instrument panel safety airbag frame is usually installed inside the instrument panel, closely around the airbag module. The main function of the mesh is that when a vehicle collision occurs, the sensor detects the collision signal and triggers the igniter to detonate the gas generator, so that the airbag quickly inflates and expands. The mesh plays a key supporting and restraining role in this process, and can act as a hinge through its functional area to ensure that the airbag can deploy in a predetermined direction and shape, and effectively prevent debris or sundries from splashing, thereby protecting passengers from harm.

[0003] In the prior art, the functional area of a kind of mesh is usually fixed by gluing. During the production process, the bonding of the functional area that plays the hinge function is not controlled, and only the glue that shapes the mesh is used to realize the bonding of the functional area of the mesh. Therefore, the functional area is frequently debonded during the use of the mesh, which easily affects the normal deployment of the airbag. Summary of the Utility Model

[0004] In view of this, the utility model aims to propose a mesh structure for a safety airbag frame to prevent the hinge part from detaching from the side plate and affecting the deployment of the airbag.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A mesh structure for a safety airbag frame includes a structural body, and the structural body includes a top plate and side plates arranged on two opposite sides of the top plate;

[0007] One end of the side plate close to the top plate is provided with a hinge part, the hinge part is folded on one side of the side plate, and the closed end of the hinge part is sewn on the side plate through a stitch, and the top plate can push to break the stitch to unfold synchronously with the hinge part.

[0008] Further, the stitch is made of cotton yarn.

[0009] Further, one end of the side plate far from the top plate has a first flanging that turns outwards.

[0010] Further, the edge of the first flanging is provided with a second flanging that is folded towards the top plate side.

[0011] Further, the top plate includes two split parts arranged oppositely, and a connecting part provided between the two split parts;

[0012] The connecting part includes a plurality of connecting pieces arranged at intervals.

[0013] Further, a positioning part is provided on the top plate, and the positioning part is used to position the structural body on an external molding device; and / or,

[0014] Both the top plate and the side plate are strip-shaped, and the length of the top plate is greater than that of the side plate, and both ends of the top plate protrude outward relative to the side plate.

[0015] Further, the structural body is formed by hot pressing a sheet-shaped mesh fabric, and the mesh fabric includes a middle part, end parts provided on both sides of the middle part, and hinge parts connecting the middle part and the end parts together;

[0016] The top plate is composed of part of the middle part, and the side plate is composed of the end part and the edge part of the middle part.

[0017] Further, both the middle part and the end part include longitudinal fibers and transverse fibers intertwined with each other, and the hinge part is composed of the transverse fibers.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The mesh fabric structure for a safety airbag frame according to the present invention, by including a top plate and side plates provided on two opposite sides of the top plate, can better adapt to the safety airbag frame in the prior art, is convenient for being injection-molded together with the safety airbag frame, and sewing the closed end of the hinge part on the side plate by sewing can maintain the stability of the hinge part, prevent it from detaching from the side plate, avoid affecting the deployment of the airbag during use, and improve the product qualification rate of the mesh fabric structure.

[0020] In addition, cotton yarn is used for sewing, which can prevent the sewing thread from being too strong and not easily broken, so as to ensure the normal deployment of the airbag. One end of the side plate away from the top plate has a first flanging that is folded outward, which can not only make it have better structural strength, but also improve the connection firmness between it and the safety airbag frame. By providing a second flanging on the edge of the first flanging that is folded towards the top plate side, the connection firmness between the mesh fabric structure and the safety airbag frame can be further improved, thereby effectively avoiding the mesh fabric structure from being pulled out.

[0021] Secondly, the connecting part includes a plurality of connecting pieces arranged at intervals, which facilitates cutting the connecting part after the mesh structure is connected to the airbag frame. By providing a positioning part on the top plate, it is convenient to quickly position it to the preset position, which can improve the production efficiency of the mesh structure of the present invention.

[0022] In addition, the structure body is formed by hot pressing a sheet-shaped mesh, with mature technology and convenient design and implementation. The top plate is composed of a partial middle part, and the side plate is composed of the edge parts of the end part and the middle part, which is beneficial for the top plate to break the sewing thread when the airbag is deployed and expand synchronously with the hinge part. By making both the middle part and the end part include longitudinally and transversely intertwined fibers, it can have better structural strength, while the hinge part is composed of transverse fibers, which is beneficial for folding the hinge part on one side of the side plate.

[0023] Another object of the present invention is to provide an airbag frame, which is provided with the mesh structure for the airbag frame as described above.

[0024] In addition, another object of the present invention is to provide a vehicle, which is provided with the airbag frame as described above.

[0025] The vehicle and the airbag frame of the present invention have all the beneficial effects of the above-mentioned mesh structure for the airbag frame, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the mesh structure for the airbag frame according to an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall structure of the mesh structure for the airbag frame from another perspective according to an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the mating position of the top plate, the side plate and the hinge part according to an embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of a structure of the end part and the middle part of the mesh according to an embodiment of the present invention.

[0031] Description of the reference numerals:

[0032] 1. Top plate; 2. Side plate; 3. Hinge part; 4. Suture; 5. Longitudinal fiber; 6. First fiber; 7. Second fiber; 8. Third fiber; A. Middle part; B. End part;

[0033] 101. Connecting piece; 102. Positioning hole;

[0034] 201. First flanging; 202. Second flanging. Detailed implementation mode

[0035] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0036] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "horizontal", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0038] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0039] The instrument panel airbag frame is an important part of the vehicle safety system, mainly located in the front passenger side area of the instrument panel, and is used to install and fix the passenger side airbag. The mesh of the instrument panel airbag frame can act as a hinge through its functional area, and cooperate with the deployment of the airbag to ensure that the airbag can be inflated quickly and completely, and prevent debris or other sundries from splashing. In view of the problem that the functional area of the mesh in the prior art that plays the hinge function often comes unstuck during use, which affects the deployment of the airbag. Therefore, this embodiment specifically proposes a new mesh structure for the airbag frame.

[0040] The mesh structure for an airbag frame in this embodiment includes a structural body, which includes a top plate 1 and side plates 2 provided on two opposite sides of the top plate 1. Among them, a hinge portion 3 is provided at one end of the side plate 2 close to the top plate 1. Among them, the hinge portion 3 is folded on one side of the side plate 2, and the closed end of the hinge portion 3 is sewn to the side plate 2 through a stitch 4. When the top plate 1 is pushed, the stitch 4 can be damaged to expand synchronously with the hinge portion 3.

[0041] The mesh structure for an airbag frame in this embodiment, by including the top plate 1 and the side plates 2 provided on two opposite sides of the top plate 1, can better adapt to the airbag frame in the prior art and is convenient for injection molding with the airbag frame. And sewing the closed end of the hinge portion 3 to the side plate 2 through the stitch 4 can maintain the stability of the hinge portion 3, prevent it from detaching from the side plate 2, avoid affecting the deployment of the airbag during use, and improve the product qualification rate of the mesh structure.

[0042] Based on the above overall introduction, an exemplary structure of the mesh structure for an airbag frame in this embodiment is referred to Figures 1 to 4 as shown in, and Figure 1 and Figure 2 only show its overall structure. Among them, as a preferred embodiment, the structural body is formed by hot pressing a sheet of mesh. Among them, the mesh is generally formed by interweaving fibers. After being shaped by glue, it can have better strength and can then be hot pressed. In addition, the mesh includes an intermediate portion A, end portions B provided on both sides of the intermediate portion A, and a hinge portion 3 connecting the intermediate portion A and the end portions B. In addition, as Figure 3 shown in, the hinge portion 3 is generally U-shaped with one end open due to folding, and its closed end is the Figure 3 bottom end shown in the

[0043] state. Figure 3 And, as shown in

[0044] With such a design, both the middle part A and the end part B of the mesh fabric can have good structural strength. Since the hinge part 3 is composed of transverse fibers, it is conducive to folding the hinge part 3 on one side of the side plate 2. Among them, the material and structure of the mesh fabric can refer to the prior art. And generally, high-strength and high-toughness fibers such as aramid and polyester are selected as the material of the mesh fabric to ensure that it can withstand huge impact forces when the airbag deploys. These materials have good wear resistance, tear resistance and high temperature resistance, and can meet the strict requirements of automotive safety components.

[0045] To facilitate the description of this embodiment, here, an exemplary structure of the end part B and the middle part A of the mesh fabric of this embodiment is referred to Figure 4 as shown in. Specifically, as Figure 4 shown in, among which, a plurality of longitudinal fibers 5 are arranged at intervals in the transverse direction, and the transverse fibers include first fibers 6 arranged alternately in the longitudinal direction, and second fibers 7 and third fibers 8 intertwined by the longitudinal fibers 5. Since there are no longitudinal fibers 5 in the hinge part 3, the second fibers 7 and the third fibers 8 cannot be intertwined, and both extend in the transverse direction, so that it can be easily folded on one side of the side plate 2.

[0046] Here, it should be noted that the structure of the mesh fabric is not limited to Figure 4 the structure shown in, and other structures applied to the airbag frame in the prior art can be adopted. In addition, in addition to being woven into the structure shown in Figure 4 for all regions of the end part B and the middle part A, the number and arrangement of the longitudinal fibers 5 or the transverse fibers can also be adjusted accordingly according to the design requirements, and the weaving process technology is mature and will not be elaborated here.

[0047] In addition, as shown in combination with Figures 1 to 3 , as a preferred embodiment, the hinge part 3 of this embodiment is folded inside the side plate 2 to improve its overall aesthetics and use effect. In addition, as a preferred embodiment, the above-mentioned sewing thread 4 is made of cotton yarn, and its strength is relatively low, and the breaking force is generally less than 1000N, so as to prevent the sewing thread 4 from having too high strength and being difficult to break, so as to ensure the normal deployment of the airbag. In addition, as a further implementation manner, one end of the side plate 2 away from the top plate 1 has a first flanging 201 that turns outwards. The setting of the first flanging 201 can not only make it have good structural strength, but also improve the connection firmness between it and the airbag frame.

[0048] Continue to refer to Figure 2As shown in [reference figure], as a further embodiment, the edge of the first flanging 201 is provided with a second flanging 202 that is folded towards the top plate 1. In this embodiment, by providing the second flanging 202 that is folded towards the top plate 1 at the edge of the first flanging 201, the connection firmness between the mesh structure and the airbag frame can be further improved, thereby effectively preventing the mesh structure from being pulled out.

[0049] In addition, referring to Figure 1 as shown in [reference figure], the top plate 1 of this embodiment specifically includes two split parts arranged oppositely, and a connecting part provided between the two split parts. Among them, the connecting part includes a plurality of connecting pieces 101 arranged at intervals. Such a design can facilitate cutting the connecting part after the mesh structure and the airbag frame are connected together, so that the two split parts are respectively connected to the airbag door for sealing the airbag, so as to facilitate synchronous deployment with the airbag door in the later stage. Among them, as Figure 1 shown in [reference figure], as a specific embodiment, there are five connecting pieces 101 of this embodiment arranged at intervals along the length direction of the top plate 1. It can be understood that the number of connecting pieces 101 is not limited to Figure 1 as shown in [reference figure], and it can be adjusted accordingly according to design requirements.

[0050] In addition, continuing to refer to Figure 1 as shown in [reference figure], as a further embodiment, both the top plate 1 and the side plate 2 are strip-shaped, and the length of the top plate 1 is greater than that of the side plate 2, and both ends of the top plate 1 protrude outward relative to the side plate 2. Such a setting can, on the premise of ensuring the connection between the side plate 2 and the airbag frame, enable the top plate 1 to better fit the airbag door on the airbag frame, increase the connection area between the top plate 1 and the airbag door, and better prevent the airbag door from splashing. Of course, in addition to making the length of the top plate 1 greater than that of the side plate 2, it is also feasible to set their lengths to be the same.

[0051] In this embodiment, in order to improve the processing efficiency, as a further embodiment, the top plate 1 is provided with a positioning part for positioning the structural body on an external molding device. Among them, as Figure 1 shown in [reference figure], as a preferred embodiment, the positioning part of this embodiment is a positioning hole 102 provided on the top plate 1, and there are four such positioning holes 102 provided at the corners of the top plate 1.

[0052] Based on the above overall description, the mesh structure for the airbag frame of this embodiment, by adopting the above structure, compared with the prior art in which the hinge part 3 is adhesively connected, can effectively prevent the hinge part 3 from coming unstuck, ensure its connection firmness with the side plate 2, thereby preventing the hinge part 3 from detaching from the side plate 2, and further avoiding affecting the deployment of the airbag during use, and can improve the product qualification rate of the mesh structure.

[0053] In addition, this embodiment also relates to an airbag frame, and the airbag frame is provided with the above-described mesh structure for the airbag frame.

[0054] In addition, this embodiment also relates to a vehicle, and the vehicle is provided with the above-described airbag frame.

[0055] The vehicle and the airbag frame of this embodiment have all the beneficial effects of the above-described mesh structure for the airbag frame, which will not be elaborated here.

[0056] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mesh structure for an airbag frame, characterized in that: The structure comprises a main body, wherein the main body comprises a top plate (1) and side plates (2) arranged on two opposite sides of the top plate (1); A hinge portion (3) is provided at one end of the side panel (2) close to the top panel (1); the hinge portion (3) is folded on one side of the side panel (2), and the closed end of the hinge portion (3) is sewn to the side panel (2) via a stitch (4); the top panel (1) is pushed to break the stitch (4) so ​​as to be unfolded synchronously with the hinge portion (3).

2. The mesh structure for an airbag frame according to claim 1, characterized in that: The suture (4) is made of cotton yarn.

3. The mesh structure for an airbag frame according to claim 1, characterized in that: One end of the side plate (2) away from the top plate (1) has a first flange (201) folded outwards.

4. The mesh structure for an airbag frame according to claim 3, characterized in that: The edge of the first flange (201) is provided with a second flange (202) folded toward one side of the top plate (1).

5. The mesh structure for an airbag frame according to claim 1, characterized in that: The top plate (1) comprises two split parts arranged opposite to each other, and a connecting part arranged between the two split parts; The connecting portion comprises a plurality of connecting pieces (101) arranged at intervals.

6. The mesh structure for an airbag frame according to claim 1, characterized in that: The top plate (1) is provided with a positioning portion, and the positioning portion is used to position the structural body on an external molding device; and / or, The top plate (1) and the side plate (2) are both in the shape of long strips, and the length of the top plate (1) is greater than that of the side plate (2), and the two ends of the top plate (1) are arranged to protrude outwards relative to the side plate (2).

7. The mesh structure for an airbag frame according to any one of claims 1 to 6, characterized in that: The structural body is formed by hot pressing of a sheet of mesh cloth, and the mesh cloth comprises a middle part (A), end parts (B) arranged on both sides of the middle part (A), and the hinge part (3) connecting the middle part (A) and the end parts (B) together; The top plate (1) is composed of a portion of the middle portion (A), and the side plate (2) is composed of the end portion (B) and an edge portion of the middle portion (A).

8. The mesh structure for an airbag frame according to claim 7, characterized in that: The middle portion (A) and the end portion (B) each comprise longitudinal fibers (5) and transverse fibers interwoven together, and the hinge portion (3) is constituted by the transverse fibers.

9. An airbag frame, characterized in that: The airbag frame is provided with the mesh structure for an airbag frame according to any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle is provided with the airbag frame according to claim 9.

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