Handrail structure for weakening side impact rigidity of door plate

Abstract

The utility model relates to the technical field of injection molding, in particular to a handrail structure capable of weakening side impact rigidity of a door plank, which comprises the door plank, a handrail framework is arranged on one side of the door plank, a handrail of the handrail framework is of a diamond-shaped grid hollow structure, profiling polyurethane foams are flatly laid above the diamond-shaped grid hollow structure, and the upper surface of the diamond-shaped grid hollow structure is provided with a groove. The handrail framework is of an integrated structure formed through one-time injection molding, a framework body of the handrail framework is made of a modified ABS thermoplastic engineering material, the main body position of the handrail framework is perpendicular to the bottom face of the door plate, and a PVC skin is arranged on the outer side of the profiling polyurethane foam. The thickness of grid supporting ribs of the rhombic grid hollowed-out structures is consistent with that of the handrail framework, the rhombic grid hollowed-out structures are evenly distributed on the handrail framework, fillets are arranged on the edges of the rhombic grid hollowed-out structures of the handrail framework, and the handrail framework is detachably connected with the door plate. The device has the characteristics of high practicability, simplicity and compression resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, and specifically relates to an armrest structure for weakening the side collision rigidity of a door panel. Background Art

[0002] At present, most armrest skeletons on the market are manufactured by planar injection molding process, and this process has many limitations. With the continuous improvement of automotive safety standards, new side collision regulations put forward higher requirements for the safety performance of vehicle interior components. However, the armrest skeletons formed by planar injection molding may not provide sufficient energy absorption and buffering effects during side collisions and cannot meet the requirements of the new safety regulations.

[0003] Meanwhile, in order to improve the comfort of the armrest, most door panel armrests adopt a design with a thickened foaming interlayer. However, this approach not only increases the curb weight of the vehicle, affecting the fuel economy and power performance of the vehicle, but also raises the manufacturing cost and reduces the market competitiveness of the product. In addition, the design of the thickened foaming interlayer may also increase the difficulty of treating waste vehicles and the risk of environmental pollution, which is not conducive to the sustainable development of the industry.

[0004] Therefore, aiming at the above problems existing in the existing armrest skeletons, the utility model aims to provide a new type of armrest skeleton structure to solve the problems of insufficient safety performance, increased vehicle weight and cost, while meeting the requirements of new automotive side collision regulations and environmental protection trends, and improving the riding experience of passengers. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an armrest structure for weakening the side collision rigidity of a door panel to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an armrest structure for weakening the side collision rigidity of a door panel, including a door panel, an armrest skeleton is arranged on one side of the door panel, the armrest part of the armrest skeleton is a diamond grid hollow structure, a profiled polyurethane foam is laid flat above the diamond grid hollow structure, and the armrest skeleton is an integrally formed structure by one-time injection molding.

[0007] According to the above technical solution, the material of the skeleton body of the armrest skeleton is a modified ABS thermoplastic engineering material.

[0008] According to the above technical solution, the main body position of the armrest skeleton is perpendicular to the bottom surface of the door panel.

[0009] According to the above technical solution, a PVC skin is arranged outside the profiled polyurethane foam.

[0010] According to the above technical solution, the thickness of the grid support ribs of the diamond grid hollow structure is the same as that of the armrest skeleton.

[0011] According to the above technical solution, the diamond grid hollow-out structures are evenly distributed on the armrest skeleton.

[0012] According to the above technical solution, rounded corners are provided at the edges of the diamond grid hollow-out structures of the armrest skeleton.

[0013] According to the above technical solution, the connection between the armrest skeleton and the door panel is detachable.

[0014] According to the above technical solution, the connection between the armrest skeleton and the door panel is a plug-in connection, and a sealing ring is provided at the plug-in connection.

[0015] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0016] (1) By providing an integrally formed structure and diamond grid hollow-out structures through injection molding, the material is a modified ABS thermoplastic engineering material, which has good impact resistance, sufficient rigidity on the front side, strong toughness on the side, and a light weight of the body, meeting the requirements of side impact regulations;

[0017] (2) By providing a detachable armrest skeleton, it is allowed to separately remove and replace damaged components without the need for overall replacement, thereby simplifying the maintenance process and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a three-dimensional schematic diagram of the armrest skeleton of the present utility model;

[0020] In the figure: 1, door panel; 2, armrest skeleton. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1-2, the present utility model provides a technical solution: an armrest structure for weakening the side impact rigidity of a door panel, including a door panel 1. An armrest skeleton 2 is arranged on one side of the door panel 1. The armrest part of the armrest skeleton 2 is a diamond grid hollow structure. A profiled polyurethane foam is laid flat above the diamond grid hollow structure. The armrest skeleton 2 is an integrally injection-molded structure; the armrest skeleton 2 is an integrally injection-molded structure. The integral injection molding process can ensure that all parts of the armrest skeleton 2 are closely combined during the molding process to form a whole, thus greatly enhancing the structural stability. A film laminating glue is sprayed on the covering area of the armrest skeleton 2, and the adhesion of the glue is ensured through a baking tunnel. A profiled polyurethane foam layer (the foam layer is formed by foaming with a special mold) is pasted above the diamond grid hollow structure. The diamond grid hollow structure can provide a certain amount of collapse space during side collisions to absorb collision energy, while the polyurethane foam layer can further buffer the impact force and protect passengers from being injured.

[0023] The skeleton body material of the armrest skeleton 2 is a modified ABS thermoplastic engineering material; by adding rubber toughening agents, fibers, etc. to the modified ABS material, its strength and toughness can be significantly improved, making the armrest skeleton 2 more stable when bearing external forces and not easily deformed or broken. The ABS material itself has good impact resistance performance. After modification, this performance is further optimized, and it can effectively absorb collision energy and protect the safety of passengers.

[0024] The main body position of the armrest skeleton 2 is perpendicular to the bottom surface of the door panel 1; the perpendicular design enables the armrest skeleton 2 to support the door panel 1 more effectively. Especially during vehicle driving, passengers may frequently lean on or grasp the armrest. This vertical support structure can reduce the deformation risk of the armrest skeleton 2 and improve the overall structural stability.

[0025] A PVC skin is arranged on the outer side of the profiled polyurethane foam; after pasting the profiled polyurethane foam layer, the PVC skin with a sponge layer laminated is fixed at the two ends of the sewing position, and manual covering is carried out from the middle to both sides, and the edges are trimmed and shaped to obtain a complete armrest covering part.

[0026] The thickness of the grid support ribs of the diamond grid hollow structure is the same as that of the armrest skeleton 2; the grid support ribs and the armrest skeleton 2 having the same thickness means that they have similar load-bearing capacities and anti-deformation abilities when bearing external forces. This consistency helps to improve the overall strength and stability of the entire armrest structure.

[0027] The diamond grid hollow structures are evenly distributed on the armrest skeleton 2; the evenly distributed diamond grid hollow structures enable the armrest skeleton 2 to more evenly disperse the load when bearing external forces, avoiding local stress concentration, and thus improving the strength and stability of the overall structure.

[0028] The edge of the diamond grid hollow-out structure of the armrest frame 2 is provided with a rounded corner; the design of the rounded corner reduces the friction between the edge of the armrest frame 2 and the wrapping material, making the wrapping process smoother.

[0029] The connection between the armrest frame 2 and the door panel 1 is detachable; when any part of the armrest frame 2 or the door panel 1 is damaged, the detachable connection allows the damaged part to be separately removed and replaced without the need for overall replacement, thus simplifying the repair process and reducing the repair cost.

[0030] The connection between the armrest frame 2 and the door panel 1 is a plug-in connection, and a sealing ring is provided at the plug-in connection; the combination of the plug-in connection and the use of the sealing ring not only simplifies the connection structure, but also enhances the fastening force and stability of the connection through the elasticity and compression deformation ability of the sealing ring, preventing the connection from loosening or falling off due to vibration or impact.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An armrest structure for weakening the side collision rigidity of a door panel, comprising a door panel (1), characterized in that: One side of the door panel (1) is provided with an armrest skeleton (2). The armrest of the armrest skeleton (2) is a diamond grid hollow-out structure. Above the diamond grid hollow-out structure, profiled polyurethane foam is laid flat. The armrest skeleton (2) is an integrally formed structure by one-time injection molding.

2. The armrest structure for weakening the side collision rigidity of the door panel according to claim 1, wherein: The material of the skeleton body of the armrest skeleton (2) is a modified ABS thermoplastic engineering material.

3. The armrest structure for weakening the side impact rigidity of the door panel according to claim 1, characterized in that: The main body position of the armrest skeleton (2) is perpendicular to the bottom surface of the door panel (1).

4. An armrest structure for weakening the side impact rigidity of a door panel according to claim 1, characterized in that: A PVC skin is provided on the outer side of the profiled polyurethane foam.

5. The armrest structure for weakening the side impact rigidity of a door panel according to claim 1, wherein: The thickness of the grid support ribs of the diamond grid hollow-out structure is the same as that of the armrest skeleton (2).

6. The armrest structure for weakening the side collision rigidity of the door panel according to claim 1, wherein: The diamond grid hollow-out structures are evenly distributed on the armrest skeleton (2).

7. The armrest structure for weakening the side collision rigidity of a door panel according to claim 1, characterized in that: Rounded corners are provided at the edges of the diamond grid hollow-out structure of the armrest skeleton (2).

8. An armrest structure for weakening the side impact rigidity of a door panel according to claim 1, characterized in that: The connection between the armrest skeleton (2) and the door panel (1) is detachable.

9. The armrest structure for weakening the side collision rigidity of the door panel according to claim 8, characterized in that: The connection between the armrest skeleton (2) and the door panel (1) is a plug-in connection, and a sealing ring is provided at the plug-in connection.

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