A spare tire side opening tailgate reinforcement assembly and vehicle door

CN224898510UActive Publication Date: 2026-10-27BAIC GRP ORV CO LTD
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Patent Information

Application Number
CN202522071745.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2026-10-27
Estimated Expiration
2035-09-26

AI Technical Summary

Technical Problem

[0003]本实用新型实施例的目的在于提供一种带备胎侧开尾门加强组件及车门,可有效解决极端越野路工况下尾门钣金发生开裂问题,提升尾门性能,提高带备胎侧开尾门应用品质

Benefits of technology

[0015]本实用新型加强组件设置不涉及其周边结构的变更,只需与现有车门内板和加强板增加连接,对工艺改动小,成本降低。主要是在车门内板设置了第一加强件、第二加强件和第三加强件,并在第一加强件、第二件加强件和第三加强件上设置涂胶面,涂胶面上施涂膨胀胶位置为同时作为备胎X项支撑限位面。提升了尾门对备胎的限位效果,加大了尾门对车备胎的支撑效果,减小了备胎与尾门之间相对运动的行程,提升了尾门零部件的稳定性,带备胎侧开尾门,利于提高车门的结构强度和刚度,而在行车过程中利于防止备胎晃动。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of with spare tire side open tail door reinforcing assembly and door, reinforcing assembly being provided on the inner panel of door, spare tire mounting reinforcing plate is equipped on the inner panel of door, spare tire mounting hole for installing spare tire is equipped on spare tire mounting reinforcing plate, the reinforcing assembly includes first reinforcing piece;The first reinforcing piece is arranged in the side surface of the spare tire mounting reinforcing plate, and is fixedly connected with the inner panel of door and spare tire mounting reinforcing plate.The upper portion of the first reinforcing piece is equipped with second lap face, the right side of first reinforcing piece is equipped with fourth lap face, lower portion is equipped with third lap face, and second lap face, third lap face and fourth lap face are all connected with the inner panel of door.The utility model is formed with spare tire side open tail door by setting first reinforcing piece, second piece reinforcing piece and third reinforcing piece, beneficial to improve the structural strength and rigidity of door, and beneficial to prevent spare tire from shaking during driving.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle engineering technology, and in particular to a reinforced assembly for a side-opening tailgate with a spare tire and a vehicle door. Background Technology

[0002] In recent years, the automotive market has continued to evolve, and the design of an externally mounted spare tire side-opening tailgate has seen explosive growth. This trend is particularly evident in rugged, boxy models, where the square outline perfectly complements the externally mounted spare tire, further accelerating the market penetration of this technology. From an aesthetic perspective, an externally mounted spare tire does effectively enhance the vehicle's visual impact and off-road appeal, but the accompanying engineering challenges cannot be ignored: First, overall manufacturing costs increase; second, due to the additional 30-40kg weight of the spare tire, the tailgate system faces severe structural challenges, specifically manifested in decreased hinge durability, a closing torque 1.5 times that of ordinary models, and susceptibility to sheet metal deformation and weld failure under complex road conditions. To ensure product reliability, special reinforcement designs are necessary for key components such as the hinge mechanism and door frame strengthening beams. Therefore, for vehicles equipped with externally mounted spare tire side-opening tailgates, improving the structural strength and rigidity of the tailgate to prevent spare tire swaying during driving is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a reinforced assembly and door with a spare tire side-opening tailgate, which can effectively solve the problem of tailgate sheet metal cracking under extreme off-road conditions, improve tailgate performance, and enhance the application quality of the spare tire side-opening tailgate.

[0004] To achieve the above objectives, this utility model provides a reinforcing assembly for a side-opening tailgate with a spare tire. The reinforcing assembly is provided on the inner panel of the door, and the inner panel of the door has a spare tire mounting reinforcing plate with a spare tire mounting hole for mounting the spare tire. The reinforcing assembly includes a first reinforcing member. The first reinforcing member is disposed on one side of the spare tire mounting reinforcing plate and is fixedly connected to the inner panel of the door and the spare tire mounting reinforcing plate.

[0005] Optionally, the first reinforcing member has a second overlapping surface at its upper part, a fourth overlapping surface on its right side, and a third overlapping surface at its lower part, and the second overlapping surface, the third overlapping surface, and the fourth overlapping surface are all connected to the inner panel of the door.

[0006] Optionally, the reinforcing assembly further includes a second reinforcing member disposed on the other side of the spare tire mounting reinforcement plate and fixedly connected to the inner door panel and the spare tire mounting reinforcement plate.

[0007] Optionally, after the second reinforcing member and the spare tire mounting reinforcing plate are fixed, a cavity is formed to distribute the load on the spare tire mounting reinforcing plate.

[0008] Optionally, the upper part of the second reinforcing member is provided with a first flange surface, the first flange surface is provided with a first overlapping surface, and the first overlapping surface is connected to the spare tire mounting reinforcing plate.

[0009] Optionally, the second reinforcing member has a second flange on its left side, and the second flange has a second overlapping surface, which is connected to the inner panel of the door.

[0010] Optionally, the right side of the second reinforcing member is provided with a third flange, the third flange being provided with a third overlapping surface, and the third overlapping surface being connected to the inner panel of the door.

[0011] Optionally, the lower part of the second reinforcing member is provided with a fourth overlapping surface, which is connected to the inner panel of the door.

[0012] Optionally, the reinforcing component further includes a third reinforcing member, which has a first overlapping surface at the upper part and a fourth overlapping surface at the lower part, and the first overlapping surface and the fourth overlapping surface are connected to the inner panel of the door; the third reinforcing member has a second overlapping surface at the upper left part, which is connected to the spare tire mounting reinforcing plate; the third reinforcing member has a third overlapping surface at the lower left part, which is connected to the second reinforcing member.

[0013] A vehicle door includes the aforementioned side-opening tailgate reinforcement assembly with spare tire, wherein the first reinforcement member, the second reinforcement member, and the third reinforcement member of the reinforcement assembly are all provided with adhesive surfaces.

[0014] One of the above technical solutions has the following advantages or beneficial effects:

[0015] This utility model's reinforcing component design does not involve changes to its surrounding structure; it only requires adding connections to the existing door inner panel and reinforcing plate, resulting in minimal process modifications and reduced costs. The main feature is the installation of a first, second, and third reinforcing member on the door inner panel, with adhesive-coated surfaces on these members. The application of expanding adhesive on these surfaces simultaneously serves as a support and limiting surface for the spare tire. This improves the tailgate's ability to limit the spare tire, increases its support for the spare tire, reduces the relative travel between the spare tire and the tailgate, and enhances the stability of the tailgate components. The side-opening tailgate with spare tire also improves the structural strength and rigidity of the door, while preventing the spare tire from swaying during driving. Attached Figure Description

[0016] Figure 1 This refers to the existing technology of a side-opening tailgate with a spare tire;

[0017] Figure 2Diagram showing the installation of a spare tire;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the first reinforcing member.

[0020] Figure 5 This is a schematic diagram of the second reinforcing member structure;

[0021] Figure 6 A schematic diagram of its three reinforcing components;

[0022] Figure 7 This is a schematic diagram of the installation structure of this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0024] like Figure 1-2 The diagram shows a conventional tailgate structure with a spare tire and a spare tire mounting configuration. It is evident from the diagram that the existing spare tire mounting reinforcement structure does not have a dedicated structure to provide X-axis support for the spare tire. Instead, it primarily connects the spare tire mounting reinforcement structure to other door reinforcement structures for reinforcement. The outer tailgate panel at the spare tire mounting location is a weak point, and there is a risk of cracking under multiple load impacts during road reliability tests.

[0025] As in the prior art Figure 1 The illustrated side-opening tailgate structure with a spare tire includes an outer door panel 6, a door window sill reinforcement plate 7, a spare tire mounting reinforcement plate 4, a door hinge reinforcement plate 8, and an inner door panel 5. The door window sill reinforcement plate 7, the spare tire mounting reinforcement plate 4, and the door hinge reinforcement plate 8 are all located within the gap between the outer door panel 6 and the inner door panel 5. The door window sill reinforcement plate 7 is located along the waistline of the inner door panel 5, the door hinge reinforcement plate 8 is located at the hinge mounting end, and the spare tire mounting reinforcement plate 4 is located in the middle of the door. The spare tire mounting reinforcement plate 4 serves as the spare tire mounting reinforcement plate and has a spare tire mounting hole. The outer door panel 6 and the inner door panel 5 are connected by an edging, forming a cavity structure between them. (Spare tire mounting is illustrated.) Figure 2 The spare tire bracket assembly is fixed to the tailgate with four bolts. The spare tire is installed on the spare tire mounting bracket assembly. A spare tire cover can be configured for the spare tire.

[0026] like Figure 7 As shown, this utility model embodiment provides a reinforcing assembly for a side-opening tailgate with a spare tire. The reinforcing assembly is installed on the inner door panel 5. The installation of the reinforcing assembly does not involve changes to its surrounding structure; it only requires adding connections to the existing inner door panel 5 and mounting reinforcement plate 4, resulting in minimal process modifications and reduced costs. The newly added reinforcing assembly includes a first reinforcing member 1, a second reinforcing member 2, and a third reinforcing member 3 to strengthen the tailgate. The inner door panel 5 has a spare tire mounting reinforcement plate 4 with a spare tire mounting hole. The reinforcing assembly includes the first reinforcing member 1; the first reinforcing member 1 is disposed on one side of the spare tire mounting reinforcement plate 4 and is fixedly connected to the inner door panel 5 and the spare tire mounting reinforcement plate 4. The first reinforcing member 1, the second reinforcing member 2, and the third reinforcing member 3 are all provided with adhesive coating surfaces. Expanding adhesive is applied to the adhesive coating surfaces. After being coated, heated, and baked, the expanding adhesive foams and hardens. Together with the first reinforcing member 1, the second reinforcing member 2, and the third reinforcing member 3, which are fixedly connected to the inner panel of the car door, they work together to support the outer panel of the car door, thereby strengthening the outer panel of the car door and improving the strength and rigidity of the car door.

[0027] like Figure 3 As shown, the first reinforcing member 1, the second reinforcing member 2, and the third reinforcing member 3 are respectively provided with an adhesive coating surface 101, an adhesive coating surface 201, and an adhesive coating surface 301. The minimum distance between the adhesive coating surface 101, the adhesive coating surface 201, and the adhesive coating surface 301 and the inner side of the outer panel 6 of the door is 3.0mm. Each adhesive coating surface is coated with expanding adhesive.

[0028] like Figure 4 As shown, the first reinforcing member 1 is located on one side of the spare tire mounting reinforcing plate 4 and is fixedly connected to the inner door panel 5 and the spare tire mounting reinforcing plate 4. The first reinforcing member 1 has a first overlapping surface 102 on its right side, which is connected to the spare tire mounting reinforcing plate 4 and the inner door panel 5 in three layers. The first reinforcing member 1 also has a second overlapping surface 103 at its upper part, a fourth overlapping surface 105 on its right side, and a third overlapping surface 104 at its lower part; these three overlapping surfaces are connected to the inner door panel 5 in two layers.

[0029] like Figure 5As shown, the second reinforcing member 2 is located below the spare tire mounting reinforcing plate 4 and is fixedly connected to the inner door panel 5 and the spare tire mounting reinforcing plate 4. After fixing, it forms a cavity, distributing the load on the spare tire mounting reinforcing plate 4 and avoiding stress concentration that could lead to sheet metal cracking at the mounting point, weld cracking, or other quality problems. The upper part of the second reinforcing member 2 is provided with a first flange surface 202, which has a first overlapping surface 205 connected to the spare tire mounting reinforcing plate 4. The left side of the second reinforcing member 2 is provided with a second flange surface 203, which has a second overlapping surface 206 connected to the inner door panel 5. The right side of the second reinforcing member 2 is provided with a third flange surface 204, which has a third overlapping surface 207 connected to the inner door panel 5. The lower part of the second reinforcing member 2 is provided with a fourth overlapping surface 208, which is connected to the inner panel 5 of the door.

[0030] like Figure 6 As shown, the third reinforcing member 3 is located on the other side of the spare tire mounting reinforcing plate 4 and is fixedly connected to the inner door panel 5 and the spare tire mounting reinforcing plate 4. The upper part of the third reinforcing member 3 has a first overlapping surface 302, and the lower part of the third reinforcing member 3 has a fourth overlapping surface 305. The first overlapping surface 302 and the fourth overlapping surface 305 are connected to the inner door panel 5. The upper left part of the third reinforcing member 3 has a second overlapping surface 303, which is connected to the spare tire mounting reinforcing plate 4. The lower left part of the third reinforcing member 3 has a third overlapping surface 304, which is connected to the second reinforcing member 2.

[0031] This utility model's side-opening tailgate reinforcement assembly with spare tire also has applications in other types of vehicle doors. For vehicles equipped with externally mounted spare tire doors, how to improve the structural strength and rigidity of the door to prevent the spare tire from shaking during driving is a key concern. Therefore, a door is proposed, including the aforementioned side-opening tailgate reinforcement assembly with spare tire. The reinforcement assembly includes a first reinforcing member 1, a second reinforcing member 2, and a third reinforcing member 3, each with an adhesive-coated surface. The adhesive-coated surface, where expanding adhesive is applied, simultaneously serves as a support and limiting surface for the spare tire. This improves the tailgate's limiting effect on the spare tire, increases the tailgate's support effect on the spare tire, reduces the relative movement stroke between the spare tire and the tailgate, and enhances the stability of the tailgate components.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A reinforcing assembly for a side-opening tailgate with a spare tire, comprising a reinforcing assembly disposed on the inner panel of the door, the inner panel of the door having a spare tire mounting reinforcing plate, the spare tire mounting reinforcing plate having a spare tire mounting hole for mounting a spare tire, characterized in that, The reinforcing component includes a first reinforcing member; the first reinforcing member is disposed on one side of the spare tire mounting reinforcing plate and is fixedly connected to the inner door panel and the spare tire mounting reinforcing plate.

2. The reinforced assembly for a side-opening tailgate with a spare tire according to claim 1, characterized in that, The first reinforcing member has a second overlapping surface at its upper part, a fourth overlapping surface on its right side, and a third overlapping surface at its lower part. All three overlapping surfaces are connected to the inner panel of the door.

3. The reinforced assembly for a side-opening tailgate with a spare tire according to claim 1, characterized in that, The reinforcing assembly also includes a second reinforcing member disposed on the other side of the spare tire mounting reinforcing plate and fixedly connected to the inner door panel and the spare tire mounting reinforcing plate.

4. The reinforced assembly for a side-opening tailgate with a spare tire according to claim 3, characterized in that, After the second reinforcing member and the spare tire mounting reinforcing plate are fixed, a cavity is formed to distribute the load on the spare tire mounting reinforcing plate.

5. The reinforced assembly for a side-opening tailgate with a spare tire according to claim 4, characterized in that, The upper part of the second reinforcing member is provided with a first flange surface, the first flange surface is provided with a first overlapping surface, and the first overlapping surface is connected to the spare tire mounting reinforcing plate.

6. The reinforced assembly for a side-opening tailgate with a spare tire according to claim 5, characterized in that, The second reinforcing member has a second flange on its left side, and the second flange has a second overlapping surface, which is connected to the inner panel of the door.

7. The reinforced assembly for a side-opening tailgate with a spare tire according to claim 6, characterized in that, The second reinforcing member has a third flange on its right side, and the third flange has a third overlapping surface, which is connected to the inner panel of the door.

8. The reinforced assembly for a side-opening tailgate with a spare tire according to claim 7, characterized in that, The lower part of the second reinforcing member is provided with a fourth overlapping surface, which is connected to the inner panel of the door.

9. The reinforced assembly for a side-opening tailgate with a spare tire according to claim 3, characterized in that, The reinforcing assembly also includes a third reinforcing member, which has a first overlapping surface at the top and a fourth overlapping surface at the bottom, and the first and fourth overlapping surfaces are connected to the inner panel of the door; the third reinforcing member has a second overlapping surface at the upper left, which is connected to the spare tire mounting reinforcing plate; the third reinforcing member has a third overlapping surface at the lower left, which is connected to the second reinforcing member.

10. A vehicle door, characterized in that, The invention includes the side-opening tailgate reinforcement assembly with spare tire as described in any one of claims 1-9, wherein the first reinforcement member, the second reinforcement member, and the third reinforcement member of the reinforcement assembly are all provided with an adhesive coating surface.