A structure of four door window frame trim of a vehicle body

By combining snap-fit ​​design with contoured foam, the assembly complexity of automotive four-door window frame trim parts is solved, achieving the effects of simplified operation, improved stability, and increased material utilization efficiency.

CN117002409BActive Publication Date: 2026-04-14JIANGLING MOTORS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing process for attaching decorative parts to the four-door windows of automobiles is complex, difficult to operate, and prone to assembly defects.

Method used

The design employs a snap-fit ​​structure, utilizing a combination of fixing clips and dovetail slots, along with contoured foam sponge, to achieve snap-fit ​​connection between window frame decorative parts and outer sheet metal, simplifying the installation process and improving stability.

Benefits of technology

It improves demolding efficiency, reduces material waste, simplifies the assembly process, enhances the reusability and installation stability of decorative parts, and reduces the risk of abnormal noise.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of four door window frame trim structure of car body, belong to the technical field of automobile window frame decoration, including first window frame trim, second window frame trim, first window frame outer plate metal plate, second window frame outer plate metal plate and third window frame outer plate metal plate;The surface of first window frame trim, second window frame trim is connected with two groups of fixed buckle;The surface of first window frame outer plate metal plate, second window frame outer plate metal plate and third window frame outer plate metal plate is opened with two groups of dovetail slot hole for with fixed buckle joint matching;The surface of first window frame trim, second window frame trim is connected with profiled foamed sponge, through four door window frame outer plate metal plate mounting hole and dovetail slot structure and window frame trim matching, with installation guide effect, mould left-right symmetry ejection, improve ejection efficiency and reduce injection waste, window frame trim increases anti-abnormal sound bubble cotton, solve pressing abnormal sound complaint.
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Description

Technical Field

[0001] This invention belongs to the field of automotive window frame decoration technology, specifically relating to a structure of decorative parts for four doors of a car body. Background Technology

[0002] With the increasing demand for aesthetically pleasing car exteriors and designs, traditional adhesive bonding methods for window frame trim pieces no longer meet customer requirements, and replacement is difficult. Therefore, we have optimized the adhesive bonding method for automotive four-door window frame trim pieces by adopting a snap-fit ​​design structure, which simplifies replacement, reduces costs, and offers superior performance.

[0003] Currently, most automotive four-door window frame trim parts are pasted with black film or 3M adhesive on the back of the plastic window frame parts. The traditional window frame trim part adhesive process requires a high degree of cleanliness of the four-door window frames. They need to be wiped and cleaned before pasting, and the pasting process also requires tooling and rolling operation. The process is complicated and difficult for employees to operate, which can easily lead to quality problems caused by poor assembly. To optimize the adhesive method of automotive four-door window frames, a new window frame trim part design structure is adopted to improve the assembly process. Summary of the Invention

[0004] The purpose of this invention is to provide a structure for the decorative parts of the four doors of a vehicle body, so as to solve the problems mentioned in the background art, such as the complex process of existing window frame decorative parts, the difficulty of operation for employees, and the quality problems caused by poor assembly.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a body four-door window frame decorative component structure, including a first window frame decorative component, a second window frame decorative component, a first window frame outer sheet metal, a second window frame outer sheet metal, and a third window frame outer sheet metal;

[0006] Both the first and second window frame decorative parts have two sets of fixing buckles connected to their surfaces.

[0007] The outer sheet metal panels of the first, second, and third window frames are all provided with two sets of dovetail slots for engaging with the fixing clips.

[0008] The surfaces of both the first and second window frame decorative parts are connected with contoured foam sponges.

[0009] Using the above scheme, two sets of first window frame decorative parts and one set of second window frame decorative parts form a window frame decorative assembly on the same side. The first window frame decorative parts and one set of second window frame decorative parts adopt a symmetrical design, which can be used for symmetrical demolding during the production process, effectively improving demolding efficiency and reducing material waste in the injection molding process. By setting mounting bosses and fixing buckles, dovetail slots and circular holes are opened on the outer sheet metal. The number and position of the dovetail slots and circular holes correspond to the fixing buckles and mounting bosses. Therefore, this device can be installed in a top-to-bottom snap-fit ​​manner, which is convenient for disassembly and assembly. The decorative parts can be reused. Compared with the traditional 3M adhesive bonding structure, the operation is simpler and more stable. By setting contoured foam, when the window frame decorative parts are installed with the outer sheet metal, the surface of the window frame decorative parts is connected with contoured foam. The contoured foam is designed according to the shape of the window frame decorative parts, which can effectively reduce the abnormal noise after pressing after snap-fit.

[0010] In a preferred embodiment, the same-side window frame consists of two sets of first window frame decorative parts and one set of second window frame decorative parts, wherein the first window frame decorative parts and the second window frame decorative parts are symmetrically designed.

[0011] In a preferred embodiment, all the fixing buckles are U-shaped and made of elastic plastic.

[0012] In a preferred embodiment, the first window frame decorative component and the second window frame decorative component further include:

[0013] The mounting bosses are all connected to the surfaces of the first window frame decorative piece and the second window frame decorative piece, and the mounting bosses are located above the two sets of fixing buckles.

[0014] In one preferred embodiment, the first window frame decorative component, the second window frame decorative component, the mounting boss, and the fixing buckle are all integrally formed by one injection molding process.

[0015] In a preferred embodiment, the surfaces of the first window frame outer sheet metal, the second window frame outer sheet metal, and the third window frame outer sheet metal are all provided with circular holes that correspond to and match the mounting bosses.

[0016] In a preferred embodiment, the fixing buckle is installed from top to bottom when it is engaged with the dovetail groove, and the dovetail groove limits the fixing buckle when it elastically returns to its original position.

[0017] In a preferred embodiment, after the first window frame decorative piece, the second window frame decorative piece, the first window frame outer sheet metal, the second window frame outer sheet metal, and the third window frame outer sheet metal are snapped together, the top position is fixed by connecting screws.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The structure of the four-door window frame trim of the vehicle body consists of two sets of first window frame trim and one set of second window frame trim to form a window frame trim assembly on the same side. The first window frame trim and the set of second window frame trim adopt a symmetrical design, which can be used in the production process by symmetrical demolding, which can effectively improve demolding efficiency and reduce material waste in the injection molding process.

[0020] This type of body four-door window frame decorative component structure is designed with mounting bosses and fixing buckles. The outer sheet metal is provided with dovetail slots and round holes. The number and position of the dovetail slots and round holes correspond to the fixing buckles and mounting bosses. Therefore, this device can be installed by snapping from top to bottom. It is easy to install and remove. The decorative component can be reused. Compared with the traditional 3M adhesive bonding structure, it is simpler to operate and more stable.

[0021] This type of body four-door window frame decorative component structure uses contoured foam sponge. When the window frame decorative component is installed with the outer sheet metal, the surface of the window frame decorative component is connected with contoured foam sponge. The contoured foam sponge is designed according to the shape of the window frame decorative component, which can effectively reduce abnormal noise when pressing after the connection. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the first window frame decorative component of the present invention;

[0024] Figure 3 This is a schematic diagram of the planar structure of the first window frame decorative component of the present invention;

[0025] Figure 4 This is a schematic diagram of the planar structure of the second window frame decorative component of the present invention;

[0026] Figure 5 This is a schematic diagram of the sheet metal structure of the outer panel of the first window frame of the present invention;

[0027] Figure 6 This is a schematic diagram of the sheet metal structure of the second window frame outer panel of the present invention;

[0028] Figure 7 This is a schematic diagram of the sheet metal structure of the outer panel of the third window frame of the present invention.

[0029] In the diagram: 1. First window frame decorative piece; 2. Second window frame decorative piece; 3. First window frame outer sheet metal; 4. Second window frame outer sheet metal; 5. Third window frame outer sheet metal; 6. Contouring foam sponge; 7. Mounting boss; 8. Fixing buckle; 9. Dovetail groove hole; 10. Circular hole. Detailed Implementation

[0030] The present invention will be further described below with reference to embodiments.

[0031] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0032] Please see Figure 1-7 The present invention provides a four-door window frame decorative component structure for a vehicle body, including a first window frame decorative component 1, a second window frame decorative component 2, a first window frame outer sheet metal 3, a second window frame outer sheet metal 4, and a third window frame outer sheet metal 5.

[0033] like Figure 1 As shown, the four-door window frame design includes two sets of first window frame decorative parts 1 and one set of second window frame decorative parts 2. The two sets of first window frame decorative parts 1 and one set of second window frame decorative parts 2 form a single-sided window frame decorative component. The first window frame decorative parts 1 and the second window frame decorative parts 2 are symmetrically designed. During the processing, the first window frame decorative parts 1 and the second window frame decorative parts 2 can be molded in a symmetrical manner, which can effectively improve touch efficiency and reduce the waste of injection molding materials.

[0034] like Figure 2-4 As shown, both sets of first window frame decorative parts 1 and one set of second window frame decorative parts 2 are provided with a set of mounting bosses 7 and two sets of fixing buckles 8. The mounting bosses 7, fixing buckles 8 and decorative parts are all injection molded in one piece. The mounting bosses 7 are located at the top. The window frame decorative parts are designed according to the shape of the outer sheet metal of the window frame. At the same time, the surfaces of the first window frame decorative parts 1 and the second window frame decorative parts 2 are provided with contoured foam sponge 6. After the window frame decorative parts are snapped to the outer sheet metal of the window frame, the contoured foam sponge 6 is designed according to the shape of the window frame decorative parts to play an isolation role between the two. After the snapping is completed, it can effectively reduce the abnormal noise caused by pressing.

[0035] like Figure 5-7 As shown, the outer sheet metal panels 3, 4, and 5 of the first, second, and third window frames are all provided with a set of circular holes 10 and two sets of dovetail slots 9. The outer sheet metal panels, circular holes 10, and dovetail slots 9 are formed in the same process. The mounting boss 7 corresponds to the circular hole 10, and the two sets of fixing buckles 8 correspond to the two sets of dovetail slots 9. When the window frame decorative parts are snapped into the outer sheet metal panels, the snapping method is from top to bottom. The mounting boss 7 is snapped into the circular hole 10, and the fixing buckle 8 is snapped into the dovetail slot 9. The fixing buckle 8 is made of elastic plastic material, which can quickly pass through the dovetail slot 9 during the snapping process and be limited by the dovetail slot 9, making it easy to install and remove.

[0036] Secondly, after the window frame decorative parts are connected to the outer sheet metal of the window frame, the top position is fixed with screws, and the bottom is matched and fixed with the rear end process parts (outer water cutter).

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure for decorative window frames of a vehicle body, characterized in that: Includes a first window frame decorative component (1), a second window frame decorative component (2), a first window frame outer sheet metal (3), a second window frame outer sheet metal (4), and a third window frame outer sheet metal (5); The surfaces of the first window frame decorative piece (1) and the second window frame decorative piece (2) are each connected with two sets of fixing buckles (8); The surfaces of the first window frame outer sheet metal (3), the second window frame outer sheet metal (4) and the third window frame outer sheet metal (5) are all provided with two sets of dovetail slots (9) for engaging with the fixing buckle (8); The surfaces of the first window frame decorative piece (1) and the second window frame decorative piece (2) are both connected with contoured foam sponge (6); The same-side window frame consists of two sets of first window frame decorative parts (1) and one set of second window frame decorative parts (2), and the first window frame decorative parts (1) and the second window frame decorative parts (2) are symmetrically designed; When the fixing buckle (8) is inserted into the dovetail groove (9), it is installed from top to bottom. The dovetail groove (9) limits the fixing buckle (8) that is elastically returning to its original position.

2. The body four-door window frame decorative component structure according to claim 1, characterized in that: All the fixing buckles (8) are U-shaped and made of elastic plastic.

3. The body four-door window frame decorative component structure according to claim 1, characterized in that: The first window frame decorative component (1) and the second window frame decorative component (2) also include: Mounting bosses (7) are connected to the surfaces of the first window frame decoration (1) and the second window frame decoration (2), and the mounting bosses (7) are located above the two sets of fixing buckles (8).

4. The body four-door window frame decorative component structure according to claim 1, characterized in that: The first window frame decorative piece (1), the second window frame decorative piece (2), the mounting boss (7) and the fixing buckle (8) are all integrated and formed by one injection molding.

5. The body four-door window frame decorative component structure according to claim 1, characterized in that: The surfaces of the first window frame outer sheet metal (3), the second window frame outer sheet metal (4) and the third window frame outer sheet metal (5) are all provided with circular holes (10) that correspond to and match the mounting boss (7).

6. The body four-door window frame decorative component structure according to claim 1, characterized in that: After the first window frame decorative piece (1), the second window frame decorative piece (2), the first window frame outer sheet metal (3), the second window frame outer sheet metal (4), and the third window frame outer sheet metal (5) are snapped together, the top position is fixed by connecting screws.

Citation Information

Patent Citations

  • Fixing structure of trim strips of door window frames

    CN106740549A

  • Clamp for connecting window-sill decorative strap and vehicle door

    CN2769458Y