Air bag cover cap and air bag mounting structure
By providing barriers on the inner cover plate of the airbag cover to separate the hook element from the side walls of the slot hole of the car seat frame, the problem that the hook needs injection molding and the injection molding layer is prone to fall off in the prior art is solved, and the effect of reducing noise is achieved.
Patent Information
- Application Number
- CN202421672894.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The hooks of existing airbag brackets require injection molding to reduce friction noise, but the injection molding layer is easily friction-falling, causing noise to regenerate.
A barrier is provided on the inner cover plate of the airbag cover, which is located on both sides of the bent portion of the hook element, separating the side walls of the hook element from the slot hole of the car seat frame to avoid friction and abnormal noise.
Through the design of the barrier, friction between the hook element and the slot hole of the car seat skeleton is avoided, the problem of easy fall off of the injection molded layer is solved, and the generation of noise is reduced.
Smart Images
Figure CN222832812U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety airbags, in particular to an airbag cover and an airbag installation structure. Background Art
[0002] The inside of the airbag cover is used to assemble the airbag bracket and the airbag, and the airbag is assembled to the car seat in cooperation with the airbag bracket. The airbag cover is generally provided with a perforation, one end of the airbag bracket is bolted to the car seat frame, and the other end is provided with an L-shaped hook, which passes through the perforation on the airbag cover and is inserted into the slot on the side wall of the car seat frame to hook the car seat frame, so as to fix the airbag cover with the airbag on the car seat frame.
[0003] In the prior art, since the airbag bracket and the car seat frame are usually metal structures, after the airbag bracket is inserted into the slot on the car seat frame, relative friction / collision will occur between the hook and the car seat frame to produce noise. In order to avoid the noise between the hook and the car seat frame, the hook is usually injection molded on the outer surface after being formed, which undoubtedly increases the production cost of the airbag bracket. In addition, due to the uneven thickness distribution of the injection molding, when the airbag bracket and the car seat frame rub against each other, the injection molding layer will be rubbed off, so that the metal of the airbag bracket is exposed and rubs against the car seat frame again to produce noise.
[0004] Based on this, a new technical solution is needed. Utility Model Content
[0005] In view of this, the embodiments of the utility model provide an airbag cover and an airbag mounting structure to at least solve the problem that the hook of the existing airbag bracket needs to be injection molded and the injection molded layer is easily rubbed off after injection molding.
[0006] The utility model embodiment provides the following technical solutions:
[0007] The utility model provides an airbag cover, comprising an inner cover plate and an outer cover plate arranged opposite to each other, wherein a cavity space is formed between the inner cover plate and the outer cover plate to install an airbag bracket, and a through hole is provided on the inner cover plate, and further comprising:
[0008] A barrier is provided on the outer surface of the inner cover plate and is located at the side of the through hole. When the hook element of the airbag bracket is assembled into the through hole, the barrier is located at both sides of the bent portion of the hook element.
[0009] Furthermore, the barrier element further comprises:
[0010] The blocking portion is located at a side of the blocking member away from the inner cover plate and is used to prevent the blocking member from being separated from the slot when the blocking member is inserted into the slot of the seat frame.
[0011] Furthermore, the barrier is a U-shaped structure and is mounted on the through hole.
[0012] Furthermore, the distance between the first ends of the two side walls of the barrier is smaller than the distance between the second ends of the two side walls of the barrier, the first end of the barrier side wall is an end of the barrier close to the outer surface of the inner cover plate, and the second end of the barrier side wall is an end of the barrier away from the outer surface of the inner cover plate.
[0013] Furthermore, the barrier element comprises:
[0014] Two sub-blocking members are arranged opposite to each other on the outer surface of the inner cover plate and are located at the side of the through hole.
[0015] Furthermore, at least a portion of the width of the blocking member is equal to or greater than the width of the slot of the seat frame, so that the blocking member is interference-connected with the slot.
[0016] Furthermore, a blocking element is provided at one end of the sub-blocking member away from the inner cover plate, and the blocking element extends in a direction away from the other sub-blocking member.
[0017] Furthermore, one side of the inner cover plate protrudes toward the outer side of the inner cover plate to form a mounting groove, and the mounting groove is used to place at least a part of the airbag bracket.
[0018] Further, the perforation comprises:
[0019] a constant width portion, the constant width portion matching the width of the hook element;
[0020] The insertion portion has an end where the width of the insertion portion connected to the equal-width portion is the same as the width of the equal-width portion, and at least a portion of the insertion portion has a width greater than the width of the equal-width portion.
[0021] The utility model also provides an airbag installation structure, comprising:
[0022] An airbag cover as described in any one of the above;
[0023] An airbag bracket, at least a portion of which is located in the airbag cover, and a hook element is provided on the portion of the airbag bracket located in the airbag cover, and when the hook element is assembled into the through hole of the airbag cover, the bent portion of the hook element is located between the barrier members of the airbag cover.
[0024] Further, an outer surface of the inner cover plate of the airbag cover is provided with an outer protrusion, the outer protrusion is located at a side of the through hole of the airbag cover, and when the hook element is inserted into the through hole, the outer protrusion is located on a sliding path of the hook element.
[0025] Compared with the prior art, the at least one technical solution adopted in the embodiment of the utility model can achieve the following beneficial effects:
[0026] An airbag cover of the utility model is provided with a barrier piece outside the perforation of the inner cover plate, so that after the hook element of the airbag bracket is inserted into the perforation and located in the barrier piece, the hook element of the airbag bracket is inserted into the slot hole on the car seat frame, and the barrier piece can separate the hook element and the side wall of the slot hole of the car seat frame, thereby avoiding the hook element and the slot hole of the car seat frame from rubbing or expanding to produce abnormal noise, and also solves the problem that the hook of the existing airbag bracket needs to be injection molded and the injection molded layer is easily rubbed off after injection molding. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0028] Figure 1 This is a schematic structural diagram of an airbag cover according to an embodiment of the utility model;
[0029] Figure 2 for Figure 1 Implementation method of Part A (I);
[0030] Figure 3 for Figure 1 Implementation method of Part A (II);
[0031] Figure 4 for Figure 1 Implementation method of Part A (III);
[0032] Figure 5 for Figure 1 Implementation method of Part A (IV);
[0033] Figure 6 It is a structural schematic diagram of an airbag bracket in an airbag installation structure of the utility model;
[0034] Figure 7 The utility model is a partial schematic diagram of an airbag mounting structure installed on a car seat frame.
[0035] Figure 8It is a structural schematic diagram of an airbag cover having an outer convex portion according to the utility model;
[0036] Fig. 9 for Figure 8 Schematic diagram of the structure of part B.
[0037] The accompanying drawings of the present utility model are as follows:
[0038] 10. Inner cover plate; 11. Perforation; 111. Equal width portion; 112. Insertion portion; 12. Blocking member; 121. Sub-blocking member; 13. Outer convex portion;
[0039] 20. Outer cover;
[0040] 30. air bag support; 31. hook element;
[0041] 40. Slot. DETAILED DESCRIPTION
[0042] The embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0043] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.
[0044] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an 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 aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.
[0045] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.
[0046] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.
[0047] The airbags are installed on both sides of the seats. The hooks of the airbag brackets for installing the airbags are usually made of metal parts. After the hooks of the airbag brackets are inserted into the perforations on the airbag cover, they usually need to be inserted into the slots on the side walls of the seat frame. Since the side walls of the seat frame are also made of metal materials, during the bumps of the vehicle, the hooks and the side walls of the slots are prone to relative friction and produce abnormal noises.
[0048] In the prior art, after the hook of the airbag bracket is formed, a secondary injection molding is usually performed on the hook to coat the hook with an injection molding layer, but this undoubtedly increases the production process and greatly increases the production cost. In addition, when the injection molding layer is coated on the hook, due to the different thickness of the injection molding layer, the injection molding layer will expose the hook during long-term friction, thereby causing the hook and the side wall of the seat frame slot to produce abnormal noise again.
[0049] Based on this, the present invention proposes a processing solution: Figures 1-2 As shown, an airbag cover of an embodiment of the utility model is provided with a barrier member 12 on the outside of the perforation 11 of the airbag cover to cover the part of the hook element 31 in the airbag bracket 30. The barrier member 12 can separate the hook element 31 from the side wall of the seat frame slot 40, thereby preventing the hook element 31 from rubbing against the side wall of the seat frame slot 40 and generating abnormal noise. Therefore, the utility model improves the airbag cover, and there is no need to injection mold the hook element 31 of the airbag bracket 30, thereby solving the problem that the hook of the existing airbag bracket 30 needs to be injection molded and the injection molded layer is easily rubbed off after injection molding.
[0050] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.
[0051] like Figures 2-3As shown, an airbag cover provided by an embodiment of the utility model includes an inner cover plate 10 and an outer cover plate 20 arranged opposite to each other, a cavity space is formed between the inner cover plate 10 and the outer cover plate 20 to install an airbag bracket 30, a through hole 11 is opened on the inner cover plate 10, and the inner cover plate 10 also includes a barrier 12, which is arranged on the outer surface of the inner cover plate 10 and located on both sides of the through hole 11, so that when the hook element 31 of the airbag bracket 30 is assembled into the through hole 11, the barrier 12 is located on both sides of the bending portion of the hook element 31.
[0052] The inner cover plate 10 and the outer cover plate 20 are formed by injection molding. The inner cover plate 10 and the outer cover plate 20 can be formed by injection molding as a whole, or can be injection molded separately and connected by snap-fit.
[0053] For example, the inner cover plate 10 and the outer cover plate 20 are injection molded separately and connected by snap fastening.
[0054] Among them, one side of the inner cover plate 10 protrudes toward the outside of the inner cover plate 10 to form a mounting groove inside the inner cover plate 10, and the mounting groove is used to place at least part of the airbag bracket 30. For example, when one end of the airbag bracket 30 is set as an arc structure and has an outward convex structure, one end of the airbag bracket 30 can be placed in the mounting groove of the inner cover plate 10. At this time, the shape of the mounting groove matches the shape of one end of the airbag bracket 30.
[0055] In some of the embodiments, the inner cover plate 10 is further provided with other through holes or limiting structures matching the airbag bracket 30 .
[0056] The cavity space formed by the inner cover plate 10 and the outer cover plate 20 after being molded has an opening, and the opening is used to allow one end of the airbag bracket 30 to extend outward so that the airbag bracket 30 is fixedly connected to the car seat frame, such as bolted connection.
[0057] In some embodiments, the perforation 11 can be configured as a long strip, and its width is similar to the wall thickness of the hook element 31 of the airbag support 30 , such as the width of the perforation 11 is slightly larger than the wall thickness of the hook element 31 or equal to the thickness of the hook element 31 .
[0058] In some non-preferred embodiments, the wall thickness of the hook element 31 may be slightly greater than the width of the through hole 11 , so that after the hook element 31 is forcibly inserted into the through hole 11 , a strong interference structure is formed to prevent the hook element 31 from moving in the through hole 11 .
[0059] In some embodiments, the perforation 11 includes an equal width portion 111 and an insertion portion 112. The equal width portion 111 matches the width of the hook element 31; the width of the end of the insertion portion 112 connected to the equal width portion 111 is the same as the width of the equal width portion 111, and at least part of the width of the insertion portion 112 is greater than the width of the equal width portion 111.
[0060] The insertion portion 112 has at least a portion with a width greater than that of the equal-width portion 111 , that is, the insertion portion 112 has at least a portion with a width greater than that of the hook element 31 , so as to facilitate the hook element 31 to be inserted into the through hole 11 .
[0061] Among them, since at least part of the width of the insertion portion 112 is greater than the width of the hook element 31, when the hook element 31 is inserted into the through hole 11, there is no need for the staff to aim accurately, and since at least part of the insertion portion 112 is greater than the width of the hook element 31, the difficulty of inserting the hook element 31 into the through hole 11 is also reduced.
[0062] In some embodiments, the width of the inserting portion 112 may decrease linearly from one end to the other end until the width of one end where the inserting portion 112 is connected to the equal-width portion 111 is the same as the width of the equal-width portion 111 .
[0063] For example, the inserting portion 112 is in a trapezoidal structure as a whole.
[0064] In some of the embodiments, the width of the inserting portion 112 may decrease nonlinearly from one end to the other end.
[0065] For example, the width of one end of the insertion portion 112 remains unchanged, while the width of the other end gradually decreases until it is equal to the width of the equal-width portion 111. Specifically, the insertion portion 112 as a whole is a combination of a rectangle and a trapezoid, or the insertion portion 112 as a whole is a combination of a rectangle and an arc, etc.
[0066] The equal width portion 111 is the final resting position of the hook element 31 .
[0067] Specifically, when the hook element 31 is inserted into the through hole 11 , the hook element 31 first enters the insertion portion 112 , and then moves toward the equal-width portion 111 until entering the equal-width portion 111 .
[0068] The length of the equal-width portion 111 is sufficient to at least partially accommodate the hook handle of the hook element 31 .
[0069] Preferably, the length of the equal width portion 111 can completely accommodate the hook handle of the hook element 31 .
[0070] The barrier 12 is made of non-metallic material, such as plastic.
[0071] The barrier 12 is used to be inserted into the slot 40 of the side wall of the seat frame along with the hook element 31 to separate the hook element 31 and the side wall of the slot 40 to avoid collision or friction between the hook element 31 and the side wall of the slot 40 .
[0072] like Figures 4-5As shown, a blocking portion is also provided on the blocking member 12 , which is located on a side of the blocking member 12 away from the inner cover plate 10 , and is used to prevent the blocking member 12 from being separated from the slot 40 when the blocking member 12 is inserted into the slot 40 of the seat frame.
[0073] The barrier 12 may be an integral structure or a split structure.
[0074] In some of the embodiments, Figure 2 , 4 As shown, when the barrier 12 is an integrated structure, the barrier 12 may be a U-shaped structure and mounted on the through hole 11 .
[0075] In some of the embodiments, when the barrier 12 is a U-shaped structure, the distance between the first ends of the two side walls of the barrier 12 is smaller than the distance between the second ends of the two side walls of the barrier 12, the first end of the side wall of the barrier 12 is the end of the barrier 12 close to the outer surface of the inner cover plate 10, and the second end of the side wall of the barrier 12 is the end of the barrier 12 away from the outer surface of the inner cover plate 10.
[0076] Among them, because the distance between the second ends of the two side walls of the barrier 12 is greater than the distance between the first ends of the two side walls of the barrier 12, the second ends of the two side walls of the barrier 12 naturally form a blocking portion due to their wider width to prevent the barrier 12 from escaping from the slot 40.
[0077] In some embodiments, when the barrier member 12 is a U-shaped structure, the second end of the barrier member 12 protrudes outward to form a blocking portion.
[0078] In some of the embodiments, Figure 3 , 5 As shown, when the barrier 12 is a split structure, the barrier 12 includes two sub-barriers 121 . The two sub-barriers 121 are disposed opposite to each other on the outer surface of the inner cover plate 10 and are located at the side of the through hole 11 .
[0079] When the hook element 31 is completely inserted into the equal width portion 111 of the through hole 11 , the two blocking members 121 are located on both sides of the bent portion of the hook element 31 to separate the hook element 31 from the side wall of the slot hole 40 of the automobile seat frame.
[0080] The sub-blocking member 121 may be a plate-type structure or a rod-type structure.
[0081] For example, the sub-blocking member 121 may be formed by a plurality of rod-shaped structures arranged side by side.
[0082] Furthermore, a blocking element is provided at one end of the sub-blocking member 121 away from the inner cover plate 10 , and the blocking element extends in a direction away from the other sub-blocking member 121 .
[0083] The blocking element is used to prevent the sub-blocking member 121 from being separated from the slot 40 .
[0084] The blocking element as a whole can be configured as a rod structure, a plate structure, a triangular prism structure, etc.
[0085] Further preferably, the blocking member 12 is connected to the slot 40 in an interference fit manner.
[0086] Specifically, at least a portion of the barrier 12 has a width equal to or slightly greater than the width of the slot 40 of the seat frame, so as to prevent the barrier 12 from shaking in the slot 40 and causing abnormal noise when the barrier 12 is installed in the slot 40 .
[0087] Since the barrier 12 is made of plastic, even if the width of the barrier 12 is greater than the width of the slot 40 , the barrier 12 can still be inserted into the slot 40 after being deformed.
[0088] The installation method of the utility model is as follows:
[0089] Insert the hook element 31 of the airbag bracket 30 into the insertion portion 112 of the through hole 11 and slide it toward the equal width portion 111 of the through hole 11;
[0090] When the hook element 31 enters the equal width portion 111 , the barrier 12 includes at least part or all of the bent portion of the hook element 31 . Finally, when the hook element 31 is inserted into the slot 40 of the car seat frame, the barrier 12 can separate the hook element 31 and the side wall of the slot 40 .
[0091] Example 2
[0092] like Figures 6 to 9 As shown, the embodiment of the utility model further provides an airbag installation structure, comprising the airbag cover and the airbag bracket 30 as described in Embodiment 1. At least a portion of the airbag bracket 30 is located in the airbag cover, and a hook element 31 is provided on the portion of the airbag bracket 30 located in the airbag cover. When the hook element 31 is assembled into the through hole 11 of the airbag cover, the bent portion of the hook element 31 is located between the barrier members 12 of the airbag cover.
[0093] Furthermore, the outer surface of the inner cover plate 10 of the airbag cover is provided with an outer protrusion 13 , which is located at the side of the through hole 11 of the airbag cover and is located on the sliding path of the hook element 31 when the hook element 31 is inserted into the through hole 11 .
[0094] Among them, at least part of the tail of the hook element 31 is set as an inclined surface structure or an arc surface structure, and the hook element 31 can slide over the outer protrusion 13 through the inclined surface structure or the arc surface structure, so that at least part of the outer protrusion 13 abuts against the hook element 31.
[0095] Inserting the hook element 31 into the slot 40 and sliding the seat frame side wall forming the slot 40 can insert the hook element 31 and the outer protrusion 13 so that an interference structure is formed among the hook element 31 , the seat frame side wall and the outer protrusion 13 .
[0096] The first end of the outer protrusion 13 along the sliding direction of the hook element 31 is configured as an inclined surface or an arc surface structure, so that the hook element 31 can slide over the outer protrusion 13; and / or
[0097] The second end of the outer protrusion 13 along the sliding direction of the hook element 31 is configured as an inclined surface or an arc surface structure, so that the side wall of the seat frame forming the slot 40 is inserted between the hook element 31 and the outer protrusion 13 .
[0098] The installation method of this embodiment is as follows:
[0099] When the hook element 31 is inserted into the equal width portion 111 of the through hole 11 , the hook element 31 passes over the outer protrusion 13 and abuts against the outer protrusion 13 ;
[0100] Insert the hook element 31 into the slot hole 40 of the automobile seat frame, and insert the side wall of the seat frame forming the slot hole 40 between the hook element 31 and the outer protrusion 13, so that an interference structure is formed between the hook element 31, the side wall of the seat frame and the outer protrusion 13 to prevent the hook element 31 from shaking in the slot hole 40.
[0101] In this specification, the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the product embodiment described later, since it corresponds to the method, the description is relatively simple, and the relevant parts can be referred to the partial description of the system embodiment.
[0102] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. An airbag cover, comprising an inner cover plate and an outer cover plate arranged opposite to each other, wherein a cavity space is formed between the inner cover plate and the outer cover plate to install an airbag bracket, and a through hole is formed on the inner cover plate, wherein: The inner cover plate also includes: A barrier is provided on the outer surface of the inner cover plate and is located at the side of the through hole. When the hook element of the airbag bracket is assembled into the through hole, the barrier is located at both sides of the bent portion of the hook element.
2. The airbag cover according to claim 1, characterized in that: The barrier comprises: The blocking portion is located at a side of the blocking member away from the inner cover plate and is used to prevent the blocking member from being separated from the slot when the blocking member is inserted into the slot of the seat frame.
3. The airbag cover according to claim 1, characterized in that: The blocking member is a U-shaped structure and is mounted on the through hole.
4. The airbag cover according to claim 3, characterized in that: The distance between the first ends of the two side walls of the barrier is smaller than the distance between the second ends of the two side walls of the barrier, the first end of the barrier side wall is the end of the barrier close to the outer surface of the inner cover plate, and the second end of the barrier side wall is the end of the barrier away from the outer surface of the inner cover plate.
5. The airbag cover according to claim 1, characterized in that: The barrier comprises: Two sub-blocking members are arranged opposite to each other on the outer surface of the inner cover plate and are located at the side of the through hole.
6. The airbag cover according to claim 1, characterized in that: The blocking member is interference connected with the slot of the seat frame.
7. The airbag cover according to claim 1, characterized in that: One side of the inner cover plate protrudes toward the outer side of the inner cover plate to form a mounting groove in the inner cover plate, and the mounting groove is used to place at least a part of the airbag bracket.
8. The airbag cover according to claim 1, characterized in that: The perforation comprises: a constant width portion, the constant width portion matching the width of the hook element; The insertion portion has an end where the width of the insertion portion connected to the equal-width portion is the same as the width of the equal-width portion, and at least a portion of the insertion portion has a width greater than the width of the equal-width portion.
9. An airbag installation structure, characterized in that: include: The airbag cover according to any one of claims 1 to 8; An airbag bracket, at least a portion of which is located in the airbag cover, and a hook element is provided on the portion of the airbag bracket located in the airbag cover, and when the hook element is assembled into the through hole of the airbag cover, the bent portion of the hook element is located between the barrier members of the airbag cover.
10. The airbag installation structure according to claim 9, characterized in that: The outer surface of the inner cover plate of the airbag cover is provided with an outer convex portion, which is located at the side of the through hole of the airbag cover and is located on the sliding path of the hook element when the hook element is inserted into the through hole.