Tapered upwarp luggage rack assembly and end socket structure thereof

The gradual upward-curving structure of the air duct and the plug-in design of the luggage board and head solves the problems of low connection strength and complicated installation of the bus luggage rack, achieves efficient installation and stable connection, and improves the safety and aesthetics of the luggage rack.

CN223420601UActive Publication Date: 2025-10-10JIANGSU GUANGHUA AUTOMOTIVE TRIM CO LTD
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Patent Information

Application Number
CN202423116409.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-10-10
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

The connection strength between the head and the luggage rack of existing passenger cars is low and the installation is complicated, which consumes high labor costs. In addition, the integral injection-molded head has problems of looseness and abnormal noise.

Method used

The air duct and luggage board adopt a plug-in design with a gradually upward-curved structure and are made of polyurethane foam. The head is equipped with a rib structure inside to form a conical opening, which is connected by plug-in to ensure precise docking and tight fixation.

Benefits of technology

It improves installation efficiency and connection strength, reduces installation difficulty and labor costs, ensures the stability and safety of the luggage rack during vehicle driving, and improves the appearance coordination and overall quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gradually-changing type upwarp luggage rack assembly and a sealing head structure thereof, and relates to the field of passenger car interior trim parts, the key points of the technical scheme are that the assembly comprises an assembly body, the assembly body comprises an air duct and a luggage plate, gradually-changing type upwarp structures, namely an upwarp structure A and an upwarp structure B, are arranged at the foremost end and the rearmost end of the outer surfaces of the air duct and the luggage plate, the tapered upwarp structure and the end socket are mounted in an inserted manner, so that the air duct, the upwarp structure of the luggage plate, the internal plane structure and the end socket of the luggage rack are designed to be matched with one another and connected in an inserted manner, all parts can be accurately butted during mounting, the mounting difficulty is reduced, and the mounting efficiency is improved. Meanwhile, the design of the conical opening structure is more ingenious, and the air duct and luggage plate assembly can be easily inserted and automatically and tightly fixed along with the increase of the insertion depth due to the characteristics that the inlet is large and the inner opening is small, so that the installation efficiency and the connection strength can be well improved.
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Description

Technical Field

[0001] The utility model relates to the field of passenger car interior decoration parts, and more specifically, to a gradual upward luggage rack assembly and a head structure thereof. Background Art

[0002] Coach luggage racks are typically located on either side of the roof or above the center of a coach, specifically designed for passengers to store their luggage. They are typically made of metal and possess a certain strength and load-bearing capacity to ensure the safe placement of luggage.

[0003] At present, the front end of the luggage rack of a passenger bus is installed on the flat end face of the luggage rack through an integral injection-molded head to achieve the purpose of shielding luggage and decorating the luggage rack. The length of this integral injection-molded head is generally about 300mm, and there are problems with the connection strength of the luggage rack, such as looseness and abnormal noise (the connection strength is low). Moreover, the installation of the integral injection-molded head is cumbersome and the labor cost during installation is high.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a gradual upward luggage rack assembly and a head structure thereof. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a gradually-changing upward luggage rack assembly and a head structure thereof.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a gradually upturned luggage rack assembly, comprising an assembly, wherein the assembly includes an air duct and a luggage board, and is characterized in that the outer surfaces of the air duct and the luggage board have gradually upturned structures at the front and rear ends, namely, upturned structure A and upturned structure B, which are installed by plugging the gradually upturned structures into the head.

[0007] Preferably, the upturned structure A and the upturned structure B are both provided with a thickened planar structure, namely the planar structure A and the planar structure B, and the upturned structure A and the upturned structure B are both gradual transition structures with a length of mm and a root of º.

[0008] Preferably, the air duct and luggage board are formed by compression molding, and the air duct and luggage board are made of polyurethane foam material. Compression molding can ensure that the air duct and luggage board have precise size and shape.

[0009] A head structure includes a head, wherein the head is provided with an upturned shape consistent with an air duct and a luggage board, and a rib structure is provided inside the head along a straight direction. The rib structure and the upturned shape of the lower surface of the head are combined to form a conical opening structure, and the conical opening structure has a large entrance and a small inner opening.

[0010] Preferably, a raised flange is provided on one side of the head, the main function of which is to shield the luggage and prevent the luggage from sliding off due to shaking, bumping, etc. during the driving of the vehicle.

[0011] Preferably, the inner opening height of the tapered opening structure is consistent with the planar structure on the inner surface of the air duct and the luggage board. Such a design enables the upturned air duct 3 and the luggage board 4 to be accurately and synchronously inserted into the tapered opening.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The upturned structure and internal planar structure of the air duct and luggage board of this utility model complement the design of the luggage rack head, allowing for precise docking of the components during installation. This reduces installation difficulty, time, and labor costs. Furthermore, the ingenious tapered opening design, with its large entrance and small inner opening, allows the air duct and luggage board assembly to be easily inserted and automatically securely fastened as insertion depth increases. This significantly improves installation efficiency and connection strength, resolving the issues of low connection strength and cumbersome installation associated with the prior art integral injection-molded head and luggage rack.

[0014] 2. The flat surface structure A within the upturned air duct structure A and the flat surface structure B within the upturned luggage board structure B of this utility model both facilitate product demolding. During the manufacturing process, these flat surfaces withstand the stress of demolding, preventing damage to the product during demolding and ensuring product quality. This also helps improve production efficiency, reduce production costs, and make the product manufacturing process smoother and more reliable.

[0015] 3. The unique plug-in structure design between the luggage rack head, the air duct, and the luggage board, especially the tapered opening structure, ensures that all components are tightly connected. During the operation of the bus, it can withstand the weight of the luggage, the bumps and vibrations of the vehicle, and other external forces, effectively preventing loosening or displacement between components, ensuring the long-term stability and reliability of the luggage rack structure, and providing a safe storage environment for passengers' luggage.

[0016] 4. The upturned structures of the air duct, luggage board, and luggage rack cover of this utility model maintain consistency in length and angle, forming an organic, integrated form that is completely continuous from front to back and simultaneously upturned. This design enhances the luggage rack's appearance within the bus, blending seamlessly with the overall interior style, providing passengers with a comfortable and aesthetically pleasing visual experience and enhancing the overall quality and image of the bus. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the air duct structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the luggage board structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the luggage rack head of the present invention;

[0021] Figure 4 This is a schematic diagram of the appearance of the luggage rack head of the present invention;

[0022] Figure 5 This is a schematic diagram of the installation of the utility model;

[0023] Figure 6 The utility model is installed after the main view and bottom view.

[0024] In the figure: 1. Assembly; 2. Head; C. Upturned shape; D. Rib structure; d1. Conical opening structure; E. Flanged edge; 3. Air duct; 301. Upturned structure A; 302. Plane structure A; 4. Luggage board; 401. Upturned structure B; 402. Plane structure B. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, it is the structural diagram of the air duct 3 of the present utility model.

[0027] Duct 3 features an upward-curving structure A301 at its fore and aft ends. This structure is 250 mm long and features an 8° gradient at its base. This gradual upward curve serves multiple purposes. From an installation perspective, it provides a transitional form for subsequent connection to the luggage rack head 2, making the connection process smoother. During product manufacturing, the gradual curve facilitates mold formation of duct 3, reduces molding defects, and facilitates demolding.

[0028] The inner surface of the upturned structure A features a locally thickened planar structure A. This planar structure A serves a dual purpose. First, it facilitates the installation of the plug-in structure of the luggage rack head 2, providing a stable and suitable docking surface for the connection between the head 2 and the air duct 3, ensuring a precise and secure connection. Second, during the mold release process, planar structure A withstands the stress of demolding, preventing damage to the air duct 3 during demolding, thereby ensuring a more seamless product.

[0029] like Figure 2 As shown in FIG, it is the structural diagram of the luggage board 4 of the present invention.

[0030] The luggage rack 4 also features an upturned structure B at each end along its length. Its length is the same as the upturned structure A on the air duct 3, at 250mm, and it also features an 8° gradient transition at the base. This design primarily ensures consistent and aesthetically pleasing installation of the luggage rack head 2. When the luggage rack head 2 is installed on the luggage rack 4 and air duct 3, the similar upturned structure ensures a perfect match between the three, creating a harmonious and unified overall appearance and avoiding any awkward or uncoordinated splicing.

[0031] The inner surface of the upturned structure B401 of the luggage rack 4 features a partially thickened planar structure B402, which functions similarly to the planar structure A302 on the air duct 3. On the one hand, it facilitates the insertion and installation of the luggage rack head 2, providing a reliable connection foundation for the head 2. On the other hand, it facilitates mold release during the manufacturing process of the luggage rack 4, improving production efficiency and product quality.

[0032] like Figure 3 , which is a schematic diagram of the cross-section structure of the luggage rack head 2 of the present invention.

[0033] The underside of the luggage rack head 2 features an upturned shape C that matches the air duct 3 and luggage board 4. This is a key design feature that ensures a tight connection between the entire luggage rack structure. This consistency allows the air duct 3 and luggage board 4 assembly 1 to seamlessly connect with the head 2.

[0034] The interior of the head 2 is provided with a linear rib structure D, which, combined with the upturned contour C on the lower surface of the head 2, forms a tapered opening structure d1. This tapered opening structure d1 has a unique shape: a large entrance and a small inner opening, whose height aligns with the planar structure of the inner surfaces of the air duct 3 and luggage rack 4. This design ensures that the upturned air duct 3 and luggage rack 4 can be accurately and synchronously inserted into the tapered opening. Furthermore, due to the characteristics of the tapered opening structure d1, the contact surface between the assembly 1 and the tapered opening structure d1 becomes increasingly close as the insertion depth increases, thus achieving a secure connection and ensuring the stability of the luggage rack structure.

[0035] like Figure 4The figure shows the appearance of the luggage rack head 2 of the present invention.

[0036] One side of the luggage rack's head 2 features a raised flange E, which primarily shields luggage from sliding due to shaking, bumping, and other factors during vehicle operation. While the bus is in operation, passengers' luggage placed on the luggage rack is effectively blocked by the raised flange E, ensuring it remains within the rack's confines. This improves luggage safety and reduces potential injuries to passengers and disruption to the vehicle's interior caused by falling luggage.

[0037] like Figure 5 As shown, it is a schematic diagram of the installation of the utility model.

[0038] The air duct 3 and luggage plate 4 extend a certain distance (typically 25 mm) into the tapered opening d1 of the luggage rack's head 2. Due to the large entrance and small interior of the tapered opening d1, the assembly 1 (i.e., the combination of the air duct 3 and luggage plate 4) is initially inserted relatively easily. As the insertion distance increases, the contact surfaces between the assembly 1 and the tapered opening d1 gradually become more closely aligned. This tight fit allows the head 2 to be securely inserted and fixed to the front end of the assembly 1, forming a stable connection capable of withstanding the weight of luggage and various external forces acting during vehicle operation, ensuring the reliability of the luggage rack during use.

[0039] like Figure 6 As shown, the front view and bottom view of the utility model after installation:

[0040] After the luggage rack head 2 is installed, the air duct 3 and luggage plate 4 are completely connected from front to back. The front and rear ends of the entire luggage rack rise synchronously with the head 2, forming an organic, integrated shape. This overall shape not only creates a smooth and natural appearance, enhancing the aesthetics and coordination of the bus interior, but also, from a structural and functional perspective, the completely connected design facilitates air circulation within the luggage rack (if the air duct 3 has a ventilation function). The synchronously rising structure also enhances the integrity and stability of the entire luggage rack, allowing it to better adapt to the spatial layout and usage environment of the bus interior, providing passengers with a practical and aesthetically pleasing luggage storage facility.

[0041] The air duct 3 and luggage rack 4 are compression molded, ensuring precise dimensions and shapes. Furthermore, they are made of polyurethane foam, a material with excellent cushioning properties. When the bus encounters bumps, vibrations, or sudden braking during travel, luggage placed on the luggage rack may be subject to impact. This material effectively cushions these impacts, protecting the luggage from damage.

[0042] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A gradually-changing upward luggage rack assembly, comprising an assembly (1), wherein the assembly (1) comprises an air duct (3) and a luggage board (4), and is characterized in that: The outer surfaces of the air duct (3) and the luggage plate (4) have a gradual upward-warping structure at the front and rear ends, namely an upward-warping structure A (301) and an upward-warping structure B (401), and are installed by plugging the gradual upward-warping structure into the head (2).

2. The gradually tilted luggage rack assembly according to claim 1, characterized in that: The upward-warping structure A (301) and the upward-warping structure B (401) are both provided with a thickened plane structure, namely the plane structure A (302) and the plane structure B (402), and the upward-warping structure A (301) and the upward-warping structure B (401) are both gradual transition structures with a length of 250 mm and a root angle of 8°.

3. The gradually tilted luggage rack assembly according to claim 1, characterized in that: The air duct (3) and the luggage plate (4) are formed by compression molding, and the material of the air duct (3) and the luggage plate (4) is polyurethane foam material.

4. A head structure plugged into the gradually-changing upward-curving luggage rack assembly according to any one of claims 1 to 3, comprising a head (2), wherein the head (2) is provided with an upward-curving shape (C) consistent with the air duct (3) and the luggage board (4), and the interior of the head (2) is provided with a rib structure (D) along a straight line direction, wherein the rib structure (D) and the upward-curving shape (C) on the lower surface of the head (2) are combined to form a conical opening structure (d1), wherein the conical opening structure (d1) has a large inlet and a small inner opening.

5. The head structure according to claim 4, characterized in that: A raised flange (E) is provided on one side of the sealing head (2).

6. The head structure according to claim 4, characterized in that: The inner opening height of the conical opening structure (d1) is consistent with the plane structure on the inner surface of the air duct (3) and the luggage board (4).