Air bag cover plate

Abstract

The utility model discloses an air bag cover plate which comprises a cover plate body provided with a plurality of installation holes, at least three marking pieces and weakening lines, the marking pieces are installed in the corresponding installation holes, and the weakening lines comprise the first weakening sub-line, the second weakening sub-line and the third weakening sub-line. The first sub weakening line extends from the edge of one end of the cover plate to the marking piece in the middle position; the second sub-weakening line and the third sub-weakening line extend from the end, close to the marking piece, of the first sub-weakening line to the edge of the cover plate at a preset angle and surround the marking piece located in the middle so that the cover plate can be divided into three sub-cover plates, and the weight difference between every two adjacent sub-cover plates is within a preset range. The air bag cover plate solves the problem that an existing air bag cover plate cannot be evenly split, and the unfolding performance and the structural strength optimization of an air bag are improved.

Description

Technical Field

[0001] This utility model relates to the field of airbag technology, specifically to an airbag cover. Background Technology

[0002] The airbag cover is an important component of a car's safety system, usually located above the airbag, and serves to protect it. The airbag cover typically features the car manufacturer's logo and tear lines. When the airbag deploys, these tear lines are broken, allowing the airbag to protect the occupants.

[0003] In existing technologies, when the vehicle emblem is composed of multiple different parts and there are many of them, a tear line is usually set on the airbag cover. This tear line usually extends from near the middle of the airbag cover. This will undoubtedly cause the airbag cover to not split evenly in two halves, resulting in one side of the airbag cover being heavier and the other side being lighter after the airbag cover is deployed. This will cause the emblem on the heavier side to fall off the airbag cover when the airbag is deployed. In severe cases, it will affect the deployment performance and structural strength optimization of the airbag.

[0004] Therefore, a new technological solution is needed. Utility Model Content

[0005] In view of this, the present invention provides an airbag cover to at least solve the problem that airbag covers cannot be evenly split in the prior art.

[0006] The present invention provides the following technical solutions:

[0007] This utility model embodiment provides an airbag cover plate, including a cover plate with multiple mounting holes, at least three markers and weakening lines, wherein the markers are inserted into the corresponding mounting holes, and the weakening lines include a first sub-weakening line, a second sub-weakening line and a third sub-weakening line;

[0008] The first sub-weakening line extends from one end edge of the cover plate toward the marker located in the middle;

[0009] The second sub-weakening line and the third sub-weakening line extend from the end of the first sub-weakening line near the mark to the edge of the cover plate at a preset angle, and surround the mark in the middle position, so as to divide the cover plate into three sub-cover plates, and the weight difference between adjacent sub-cover plates is within a preset range.

[0010] Furthermore, the first sub-weakening line extends to the side of the marker near the center position, and the second and third sub-weakening lines are both curved around the marker near the first sub-weakening line.

[0011] Furthermore, both the second and third sub-weakening lines extend toward the side of the marker away from the first sub-weakening line, and the second and third sub-weakening lines at least surround three sides of the marker located in the middle.

[0012] Furthermore, both the second sub-weakening line and the third sub-weakening line extend to the same side of the marker.

[0013] Furthermore, the first sub-weakening line extends to the side of the marker near the middle position, the second sub-weakening line extends in a straight line from the end near the first sub-weakening line to the edge of the cover plate, and the second sub-weakening line and the first sub-weakening line are located on the same side of the marker, and the third sub-weakening line bends around the marker near the end near the first sub-weakening line and extends towards the side of the marker away from the first sub-weakening line.

[0014] This utility model also provides an airbag cover plate, including a cover plate with multiple mounting holes, at least three markers and tear lines, wherein the markers are inserted into the corresponding mounting holes, and the tear lines include a first sub-tear line, a second sub-tear line, a third sub-tear line, a fourth sub-tear line and a fifth sub-tear line.

[0015] The first sub-tear line is provided along the side of the marker at the middle position;

[0016] The second sub-tear line and the third sub-tear line extend from one end of the first sub-tear line toward the edge of the cover plate at a preset angle, and together with the first sub-tear line form a Y-shaped structure;

[0017] The fourth sub-tear line and the fifth sub-tear line extend from the other end of the first sub-tear line toward the edge of the cover plate at a preset angle, and together with the first sub-tear line form a Y-shaped structure to divide the cover plate into four sub-cover plates, and the weight difference between the four sub-cover plates is within a preset range.

[0018] Furthermore, the first sub-tear line is arranged laterally along the marker in the middle, and the second and third sub-tear lines extend to both ends of the cover plate, and the fourth and fifth sub-tear lines extend to both ends of the cover plate, so as to divide the cover plate into four sub-cover plates.

[0019] Furthermore, when the first sub-tear line is located above the marker, the slope of the second sub-tear line located above is less than the slope of the fourth sub-tear line located below, the slope of the third sub-tear line located above is less than the slope of the fifth sub-tear line located below, and the slopes of the two sub-tear lines located above and the two sub-tear lines located below are equal.

[0020] Furthermore, the first sub-tear line is longitudinally arranged along the middle marker, and the second and third sub-tear lines extend to both sides of one end of the cover plate, and the fourth and fifth sub-tear lines extend to both sides of one end of the cover plate, so as to divide the cover plate into four sub-cover plates.

[0021] Furthermore, when the first sub-tear line is located to the right of the marker, the slope of the second sub-tear line on the right is greater than the slope of the third sub-tear line on the left and / or the slope of the fourth sub-tear line on the right is greater than the slope of the fifth sub-tear line on the left.

[0022] Compared with the prior art, the beneficial effects that can be achieved by at least one of the above-mentioned technical solutions adopted in the embodiments of this utility model include at least the following:

[0023] This utility model discloses an airbag cover plate. By rationally setting a first sub-tear line, a second sub-tear line, and a third sub-tear line on the airbag cover plate, the airbag cover plate can be divided into three sub-cover plates of approximately equal weight based on the first, second, and third sub-tear lines. This solves the problem that existing airbag cover plates cannot be evenly divided, and improves the airbag's deployment performance and optimizes its structural strength. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram (I) of the structure of an airbag cover plate according to the present invention;

[0026] Figure 2 This is a schematic diagram (II) of the structure of an airbag cover according to the present invention;

[0027] Figure 3 This is a schematic diagram (III) of the structure of an airbag cover according to the present invention;

[0028] Figure 4This is a schematic diagram (four) of the structure of an airbag cover plate according to the present invention.

[0029] The reference numerals in the drawings of this utility model are as follows:

[0030] 10. Cover plate;

[0031] 20. Marking components;

[0032] 30. Weakening line; 31. First sub-weakening line; 32. Second sub-weakening line; 33. Third sub-weakening line;

[0033] 40. Tear line; 41. First sub-tear line; 42. Second sub-tear line; 43. Third sub-tear line; 44. Fourth sub-tear line; 45. Fifth sub-tear line. Detailed Implementation

[0034] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0035] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0037] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0039] For driver safety airbag covers with more than two letter logos, the existing design involves splitting the airbag cover into two halves along a tear line. However, when there is an odd number of letter logos, this can lead to uneven weight distribution in the two halves of the airbag cover. This results in the logo being on one side, causing a larger structure and weight, which is not conducive to the deployment of the airbag cover and the optimization of structural strength.

[0040] For example, when the company logo is a three-letter logo, it is not convenient to set tear lines between individual letter logos, which may lead to uneven weight distribution in the airbag cover that splits into two halves. In severe cases, the heavier logo may detach from the airbag cover.

[0041] Based on this, the embodiments of this specification propose a processing solution: such as Figures 1-4 As shown, the present invention provides an airbag cover plate, which divides the airbag cover into 3 or 4 pieces of roughly equal weight by reasonably setting multiple tear lines, so that the markings can be relatively evenly distributed in each sub-cover to obtain better performance.

[0042] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0043] Example 1

[0044] like Figures 1-2 As shown, an airbag cover of this utility model includes a cover plate 10 with multiple mounting holes, at least three markers 20, and weakening lines 30. The markers 20 are inserted into the corresponding mounting holes. The weakening lines 30 include a first sub-weakening line 31, a second sub-weakening line 32, and a third sub-weakening line 33. The first sub-weakening line 31 extends from one end edge of the cover plate 10 toward the markers 20 in the middle position. The second sub-weakening line 32 and the third sub-weakening line 33 extend from the end of the first sub-weakening line 31 near the markers 20 toward the edge of the cover plate 10 at a preset angle and surround the markers 20 in the middle position, so as to divide the cover plate 10 into three sub-cover plates 10. The weight difference between adjacent sub-cover plates 10 is within a preset range.

[0045] The cover plate 10 is used to cover and protect the vehicle airbag, such as the driver's side airbag. When the driver's side airbag is deployed, the driver's side airbag can expand the cover plate 10 into multiple sub-cover plates 10 along the weakening line 30.

[0046] The logo consists of multiple marker pieces 20, of which there are at least three, and the multiple marker pieces 20 may be of the same weight or of different weights.

[0047] The cover plate 10 has mounting holes for installing the marker 20. After the marker 20 is inserted into the corresponding mounting hole, the marker 20 and the mounting hole are heat-fused together.

[0048] When the airbag covered and protected by the cover plate 10 is inflated and deployed, the cover plate 10 can be torn from the weakening line 30 so that the cover plate 10 can be deployed into multiple sub-cover plates 10.

[0049] In this application, the weakening line 30 includes at least three sub-weakening lines 30, so that the cover plate 10 is divided into three sub-cover plates 10 with similar weights.

[0050] When the number of markers 20 is odd, the marker 20 in the middle position is the marker 20 in the middle among the multiple markers 20; when the number of markers 20 is even, the markers 20 in the middle position are the two markers 20 in the middle among the multiple markers 20, and at this time the first sub-weakening line 31 can extend between the two markers 20 in the middle.

[0051] Wherein, after the end of the first sub-weakening line 31 and the marker 20 in the middle position are extended, there is a preset interval between the end of the first sub-weakening line 31 and the marker 20 in the middle position. Therefore, the second sub-weakening line 32 and the third sub-weakening line 33 can extend from the end of the first sub-weakening line 31 and extend to the edge of the cover plate 10 at a preset angle, so that the cover plate 10 is divided into 3 sub-cover plates 10 with approximately equal weight.

[0052] For example, the first sub-weakening line 31, the second sub-weakening line 32 and the third sub-weakening line 33 are in the shape of a trident, and the tilt angle of the first sub-weakening line 31, the second sub-weakening line 32 and the third sub-weakening line 33 can be flexibly set according to the size of the corresponding part of the marker 20 so that the three sub-cover plates 10 are approximately equal in weight.

[0053] This application uses an odd number of markers 20 as an example for detailed explanation.

[0054] Furthermore, the first sub-weakening line 31 extends to the side of the marker 20 near the center position, and the second sub-weakening line 32 and the third sub-weakening line 33 are both bent around the marker 20 near the first sub-weakening line 31 to avoid the marker 20 in the center position.

[0055] For example, when the first sub-weakening line 31 extends to the middle of the side of the marker 20 which is close to the middle position, the first sub-weakening line 31 and the third sub-weakening line 33 extend from the middle of the first sub-weakening line 31 to opposite sides, then extend away from the first sub-weakening line 31, and after passing the marker 20 which is in the middle, extend at a preset tilt angle to divide the cover plate 10 into three sub-cover plates 10 with approximately equal weight.

[0056] In some embodiments, the second sub-weakening line 32 and the third sub-weakening line 33 both extend toward the side of the marker 20 away from the first sub-weakening line 31. The second sub-weakening line 32 and the third sub-weakening line 33 at least surround three sides of the marker 20 in the middle. At this time, the first sub-weakening line 31 is completely located on the same side of the multiple markers 20, and the second sub-weakening line 32 and the third sub-weakening line 33 are located on the other side of the multiple markers 20 after they extend.

[0057] The angle between the second sub-weakening line 32 and the third sub-weakening line 33 can be flexibly set according to the number of markers 20. For example, when there are 5 markers 20, the angle between the second sub-weakening line 32 and the third sub-weakening line 33 should be smaller than the angle when there are 3 markers 20, so that the weight of the sub-cover plate 10 corresponding to the second sub-weakening line 32 and the third sub-weakening line 33 is similar to the weight of the two sides.

[0058] In some embodiments, when there are more than 5 markers 20, such as 7 or 9, the second sub-weakening line 32 and the third sub-weakening line 33 can surround multiple markers 20 in the middle, such as the second sub-weakening line 32 and the third sub-weakening line 33 surrounding 3 or 5 markers 20 in the middle.

[0059] In some embodiments, the first sub-weakening line 31 extends to the side of the marker 20 near the center position, the second sub-weakening line 32 extends in a straight line from the end near the first sub-weakening line 31 toward the edge of the cover plate 10, and the second sub-weakening line 32 and the first sub-weakening line 31 are located on the same side of the marker 20, and the third sub-weakening line 33 bends around the marker 20 near the end of the first sub-weakening line 31 and extends toward the side of the marker 20 away from the first sub-weakening line 31.

[0060] Wherein, when the angle between the first sub-weakening line 31 and the horizontal line where the multiple markers 20 are located is small and the end of the first sub-weakening line 31 extends to the side end of the marker 20 which is close to the middle position, the second sub-weakening line 32 can be located on the same side of the marker 20 as the first sub-weakening line 31 after extension, so that the third sub-weakening line 33 extends away from the first sub-weakening line 31 to form three sub-covers 10 with approximately equal weight.

[0061] For example, when there are five markers 20, if the end of the first sub-weakening line 31 extends to the side end of the marker 20 in the middle, the sub-cover plate 10 formed between the second sub-weakening line 32 and the third sub-weakening line 33 has three markers 20, and the sub-cover plate 10 between the third sub-weakening line 33 and the first sub-weakening line 31 has two markers 20, and the included angle between the third sub-weakening line 33 and the second sub-weakening line 32 is less than 120°, so that at least the sub-cover plate 10 with two markers 20 and the sub-cover plate 10 with three markers 20 are similar in weight. At this time, the included angle between the first sub-weakening line 31 and the third sub-weakening line 33 is the largest, so that the three sub-cover plates 10 are approximately equal in weight.

[0062] The present invention provides an airbag cover plate, which can divide the cover plate 10 into sub-cover plates 10 with approximately equal weight through multiple sub-weakening lines 30. This allows the marking elements 20 to be distributed approximately evenly on the sub-cover plates 10 after the cover plate 10 is unfolded, thereby making the unfolding force more uniform.

[0063] Example 2

[0064] like Figures 3-4 As shown, this utility model also provides an airbag cover plate, including a cover plate 10 with multiple mounting holes, at least three markers 20, and tear lines 40. The markers 20 are inserted into the corresponding mounting holes. The tear lines 40 include a first sub-tear line 41, a second sub-tear line 42, a third sub-tear line 43, a fourth sub-tear line 44, and a fifth sub-tear line 45. The first sub-tear line 41 is provided along the side of the marker 20 located in the middle position. The second sub-tear line 42 and the third sub-tear line 43 extend from one end of the first sub-tear line 41 towards the edge of the cover plate 10 at a preset inclination angle and form a Y-shaped structure with the first sub-tear line 41. The fourth sub-tear line 44 and the fifth sub-tear line 45 extend from the other end of the first sub-tear line 41 towards the edge of the cover plate 10 at a preset inclination angle and form a Y-shaped structure with the first sub-tear line 41, so as to divide the cover plate 10 into four sub-cover plates 10, and the weight difference between the four sub-cover plates 10 is within a preset range.

[0065] Among them, the first sub-tear line 41 is set horizontally or vertically, and when it is set horizontally or vertically, the second sub-tear line 42, the third sub-tear line 43, the fourth sub-tear line 44 and the fifth sub-tear line 45 all have corresponding extension methods.

[0066] Among them, the first sub-tear line 41, the second sub-tear line 42, the third sub-tear line 43, the fourth sub-tear line 44, and the fifth sub-tear line 45 are formed as a whole. Figure 3 and Figure 4 The structure shown divides the cover plate 10 into four sub-cover plates 10 of approximately equal weight.

[0067] In some embodiments, the first sub-tear line 41 is arranged laterally along the marker 20 in the middle, and the second sub-tear line 42 and the third sub-tear line 43 extend to both ends of the cover plate 10, respectively, and the fourth sub-tear line 44 and the fifth sub-tear line 45 extend to both ends of the cover plate 10, so as to divide the cover plate 10 into four sub-cover plates 10.

[0068] The tilt angle of each sub-tear line 40 can be flexibly adjusted according to whether the first sub-tear line 41 is located above or below the marker 20, so that the weight of the four sub-cover plates 10 formed by splitting is approximately equal.

[0069] For example, when the first sub-tear line 41 is above the marker 20, the slope of the upper second sub-tear line 42 is less than the slope of the lower fourth sub-tear line 44 and / or the slope of the upper third sub-tear line 43 is greater than the slope of the lower fifth sub-tear line 45, so that the weight of each sub-cover plate 10 is approximately equal; and vice versa.

[0070] The slope is the angle between the sub-tear line 40 and the horizontal line where the marker 20 is located.

[0071] When the first sub-tear line 41 is above the marker 20, since the lower sub-cover plate 10 has one or three markers 20 compared to the upper sub-cover plate 10, the slope of the upper sub-tear line 40 is less than that of the lower sub-tear line 40, so that the lower sub-cover plate 10 and the upper sub-cover plate 10 are approximately similar in weight; in addition, the slopes of the two upper sub-tear lines 40 are equal, and the slopes of the two lower sub-tear lines 40 are equal, which also makes the weights of the left and right sub-cover plates 10 similar.

[0072] In some embodiments, the first sub-tear line 41 is longitudinally arranged along the marker 20 in the middle, and the second sub-tear line 42 and the third sub-tear line 43 extend to both sides of one end of the cover plate 10, and the fourth sub-tear line 44 and the fifth sub-tear line 45 extend to both sides of one end of the cover plate 10, so as to divide the cover plate 10 into four sub-cover plates 10.

[0073] For example, when the first sub-tear line 41 is located to the right of the marker 20, the slope of the second sub-tear line 42 located to the right is greater than the slope of the third sub-tear line 43 located to the left and / or the slope of the fourth sub-tear line 44 located to the right is greater than the slope of the fifth sub-tear line 45 located to the left.

[0074] The present invention provides an airbag cover plate, which can divide the cover plate 10 into four sub-cover plates 10 with approximately equal weights through multiple sub-tear lines 40, thereby making the weight distribution of the cover plate 10 more uniform after it is unfolded.

[0075] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for the product embodiments described later, since they correspond to the methods, the descriptions are relatively simple, and the relevant parts can be referred to the descriptions in the system embodiments.

[0076] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An airbag cover, comprising a cover plate having a plurality of mounting holes, at least three markers and a weakening line, wherein the markers are inserted into corresponding mounting holes, characterized in that, The weakening line includes a first sub-weakening line, a second sub-weakening line, and a third sub-weakening line; The first sub-weakening line extends from one end edge of the cover plate toward the marker located in the middle; The second sub-weakening line and the third sub-weakening line extend from the end of the first sub-weakening line near the mark to the edge of the cover plate at a preset angle, and surround the mark in the middle position, so as to divide the cover plate into three sub-cover plates, and the weight difference between adjacent sub-cover plates is within a preset range.

2. The airbag cover according to claim 1, characterized in that, The first sub-weakening line extends to the side of the marker near the center position, and the second and third sub-weakening lines are both curved around the marker near the first sub-weakening line.

3. The airbag cover according to claim 2, characterized in that, The second sub-weakening line and the third sub-weakening line both extend toward the side of the marker away from the first sub-weakening line, and the second sub-weakening line and the third sub-weakening line at least surround three sides of the marker located in the middle.

4. The airbag cover according to claim 2, characterized in that, The second sub-weakening line and the third sub-weakening line both extend to the same side of the marker.

5. The airbag cover according to claim 1, characterized in that, The first sub-weakening line extends to the side of the marker near the middle position, the second sub-weakening line extends in a straight line from the end near the first sub-weakening line to the edge of the cover plate, and the second sub-weakening line and the first sub-weakening line are located on the same side of the marker, and the third sub-weakening line bends around the marker near the end near the first sub-weakening line and extends towards the side of the marker away from the first sub-weakening line.

6. An airbag cover, comprising a cover plate having a plurality of mounting holes, at least three markers and a tear line, wherein the markers are inserted into corresponding mounting holes, characterized in that, The tear line includes a first sub-tear line, a second sub-tear line, a third sub-tear line, a fourth sub-tear line, and a fifth sub-tear line; The first sub-tear line is provided along the side of the marker at the middle position; The second sub-tear line and the third sub-tear line extend from one end of the first sub-tear line toward the edge of the cover plate at a preset angle, and together with the first sub-tear line form a Y-shaped structure; The fourth sub-tear line and the fifth sub-tear line extend from the other end of the first sub-tear line toward the edge of the cover plate at a preset angle, and together with the first sub-tear line form a Y-shaped structure to divide the cover plate into four sub-cover plates, and the weight difference between the four sub-cover plates is within a preset range.

7. The airbag cover according to claim 6, characterized in that, The first sub-tear line is arranged laterally along the marker in the middle, and the second and third sub-tear lines extend to both ends of the cover plate, respectively, and the fourth and fifth sub-tear lines extend to both ends of the cover plate, so as to divide the cover plate into four sub-cover plates.

8. The airbag cover according to claim 7, characterized in that, When the first sub-tear line is above the marker, the slope of the second sub-tear line above is less than the slope of the fourth sub-tear line below, the slope of the third sub-tear line above is less than the slope of the fifth sub-tear line below, and the slopes of the two sub-tear lines above and the two sub-tear lines below are equal.

9. The airbag cover according to claim 6, characterized in that, The first sub-tear line is longitudinally arranged along the middle marker, and the second and third sub-tear lines extend to both sides of one end of the cover plate, and the fourth and fifth sub-tear lines extend to both sides of one end of the cover plate, so as to divide the cover plate into four sub-cover plates.

10. The airbag cover according to claim 9, characterized in that, When the first sub-tear line is located to the right of the marker, the slope of the second sub-tear line located to the right is greater than the slope of the third sub-tear line located to the left and / or the slope of the fourth sub-tear line located to the right is greater than the slope of the fifth sub-tear line located to the left.

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