Top trim assembly

By installing soft blocks on the back of the car roof trim piece and combining them with ribs and slots for positioning, the problem of abnormal noise between the trim piece and the main frame of the car roof was solved, achieving stable installation of the trim piece and a noise-free effect.

CN223919246UActive Publication Date: 2026-02-17LIUZHOU SHUANGYING CO LTD
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Patent Information

Application Number
CN202520445365.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-02-17
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

Existing automotive roof trim assemblies are prone to generating abnormal noises during installation, especially when genuine leather trim pieces collide with the main roof frame structure.

Method used

A soft block is installed on the back of the trim piece to fill the gap between the trim piece and the main frame of the car roof. The soft block is positioned and fixed by the cooperation of ribs and slots to ensure accurate positioning and stability.

Benefits of technology

It effectively reduces the collision between the trim pieces and the main frame of the car roof, eliminates abnormal noises, improves the installation accuracy and stability of the trim pieces, and adapts to the filling needs of gaps of different sizes.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223919246U_ABST
    Figure CN223919246U_ABST
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Abstract

The utility model relates to the field of automobile interiors, in particular to a top decorating part assembly which comprises a decorating part body, and a soft block is installed on the back face of the decorating part body. By arranging the soft block, the gap between the decorating part body and the automobile top main frame is filled, and the problem that abnormal sound is generated when the top decorating part and the automobile top inner side main frame structure are installed together is solved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive interiors, specifically to a top trim assembly. Background Technology

[0002] The car roof trim assembly is installed on the main frame (made of sheet metal or glass) on the inside of the car roof using snap-fit ​​structures such as clips, thereby decorating the inside of the car roof and serving an aesthetic purpose.

[0003] Currently, most automotive roof trim assemblies are made of fabric and suede. This type of assembly, installed on the inside of the car roof, does not produce any rattling noises. Another type is made of genuine leather. While genuine leather roof trim assemblies can enhance the luxurious feel of the car interior, they have been found to produce some rattling noises during road tests. Utility Model Content

[0004] The present invention aims to provide a top trim assembly to solve the problem of abnormal noise when the top trim is installed together with the main frame structure on the inner side of the car roof.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a top decorative component assembly, including a decorative component body, wherein a soft block is installed on the back of the decorative component body.

[0006] The principle and advantages of this application are as follows: The inventors discovered through research that the reason for abnormal noise in the existing technology of the top trim assembly and the main roof frame structure (glass or sheet metal structure) is that there is a gap between the back of the trim body and a portion of the main roof frame structure when the trim body is assembled onto it. This causes the trim body and the main roof frame structure to collide during driving, resulting in abnormal noise. Therefore, in this application, a soft block is installed on the back of the trim body. After the trim body is installed on the main roof frame, the soft block fills the gap, thereby eliminating the gap and reducing the collision between the trim body and the main roof frame during driving, thus solving the problem of abnormal noise after the top trim assembly is installed. The soft block itself is relatively soft and can produce elastic deformation, thus adapting to gaps of different sizes and filling them effectively.

[0007] Preferably, as an improvement, the soft block is made of rubber or foam.

[0008] Preferably, as an improvement, the back of the decorative part body is provided with multiple ribs, which surround and form a placement area, and the soft block is placed in the placement area.

[0009] Before the trim piece is installed onto the car's roof frame, the soft block is first fixed to the corresponding position on the back of the trim piece. Then, the trim piece is assembled onto the roof frame. During assembly, the soft block can easily shift, resulting in the areas that need filling not being filled. This solution, however, places the soft block in the designated area, with ribs around it to limit its movement. This prevents lateral movement of the soft block on the trim piece during assembly onto the roof frame, ensuring its position remains constant. This guarantees precise filling of the gaps in areas with rattling noises, improving the accuracy of filling those gaps.

[0010] Preferably, as an improvement, the back of the decorative part body is provided with ribs, and the bottom of the soft block is provided with slots into which the ribs are inserted.

[0011] Before the trim pieces are installed onto the vehicle's roof frame, operators uniformly fix the soft blocks to corresponding positions on the back of the trim pieces. The trim pieces are then transferred to the assembly workshop, where assemblers install them onto the roof frame. During this transfer, the trim pieces may collide with each other, and the soft blocks can easily detach from the trim pieces due to external contact, affecting subsequent assembly onto the roof frame. To address this, this solution places the soft blocks on the back of the trim pieces, with ribs inserted into slots. The slots clamp the ribs, and the cooperation between the slots and ribs makes the soft blocks less likely to detach from the back of the trim pieces. Simultaneously, the ribs also serve as positioning markers for the soft blocks. Because the shapes of the slots and ribs are compatible, the soft blocks are not randomly installed on any rib; each trim piece's soft block is installed in a specific position on a corresponding rib, ensuring consistency and accuracy in the installation position of the soft blocks on each trim piece.

[0012] Preferably, as an improvement, the slot is polygonal in shape, and the rib inserted into the slot is also polygonal in shape.

[0013] Therefore, the shape of the slot is adapted to the shape of the rib. The polygonal rib is inserted into the polygonal slot, which increases the contact area between the slot and the rib compared to a single rib being inserted into the slot, thereby further improving the firmness and stability of the soft block on the body of the decorative piece.

[0014] Preferably, as an improvement, the polygonal slots are distributed circumferentially along the bottom of the soft block, thereby ensuring that the forces between the slots and the ribs are distributed circumferentially on the soft block, which helps to improve the contact stability between the slots and the ribs.

[0015] Preferably, as an improvement, the edge of the slot is provided with a first chamfer.

[0016] Preferably, as an improvement, the top edge of the rib is provided with a second chamfer.

[0017] Therefore, by setting a first chamfer or a second chamfer, it is easier to insert the ribs into the slots, which helps to improve the assembly speed of the soft block and the decorative part.

[0018] Preferably, as an improvement, the height of the reinforcing rib is 2-5mm and the thickness of the reinforcing rib is 1-2mm.

[0019] Preferably, as an improvement, the width of the slot is smaller than the thickness of the rib. This allows the rib to be inserted into the slot, ensuring close contact between the inner wall of the slot and the rib, resulting in greater friction between the slot and the rib, and making it less likely for the soft block to fall off.

[0020] Preferably, as an improvement, the bottom of the soft block is bonded to the back of the decorative part body. This bonding method simplifies the fixing of the soft block to the decorative part body while ensuring a firm and stable fixation of the soft block. Attached Figure Description

[0021] Figure 1 This is a perspective view of the top decorative component assembly of Example 1, mainly illustrating its rear structure.

[0022] Figure 2 This is a schematic diagram of the assembly of the soft block and the decorative part body in Example 2.

[0023] Figure 3 This is a schematic diagram of the bottom structure of the soft block in Example 2. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method:

[0025] The reference numerals in the accompanying drawings include: decorative body 1, soft block 2, rib 3, slot 4, first chamfer 5, and second chamfer 6.

[0026] Example 1

[0027] The basics are as follows: Figure 1 As shown: This embodiment discloses a top decorative component assembly, including a decorative component body 1, which is made of genuine leather. Of course, in other embodiments, it can also be made of other materials, such as fabric and suede. A soft block 2 is installed on the back of the decorative component body 1. The shape of the soft block 2 can be determined according to the actual situation. In this embodiment, the soft block 2 is rectangular. In the figure, the distance between the right end of the soft block 2 and the right end of the decorative component body 1 is 20mm. Figure 1 The distance between the lower side of the soft block 2 and the lower inner side of the back of the decorative body 1 is 20mm. The soft block 2 is made of rubber or foam.

[0028] The back of the decorative component body 1 is provided with multiple ribs 3, which surround and form a placement area. In this embodiment, there are four ribs 3 surrounding the soft block 2, forming a square structure. The soft block 2 is placed in the placement area, and the bottom surface of the soft block 2 is bonded to the back of the decorative component body 1. In this embodiment, the height of the ribs 3 (the distance between the top of the rib 3 and the back of the decorative component body 1) is 2-5mm, and the thickness of the ribs 3 is 1-2mm. The distance between the top surface of the soft block 2 and the top of the rib 3 is 1-2mm, that is, the height by which the top surface of the soft block 2 protrudes from the top of the rib 3 is 1-2mm.

[0029] In this embodiment, by installing a soft block 2 on the back of the decorative part body 1, after the decorative part body 1 is installed on the main frame of the car roof, the soft block 2 fills the gap between the decorative part body 1 and the main frame of the car roof, thereby reducing the collision between the decorative part body 1 and the main frame of the car roof and solving the problem of abnormal noise after the roof decorative part assembly is installed.

[0030] This embodiment only illustrates one installation position of the soft block 2. Of course, in other embodiments, the number of soft blocks 2 can be set and installed in different locations according to the actual location of the abnormal noise.

[0031] This embodiment addresses the issue of abnormal noise not only when the decorative part is made of genuine leather, but also when it is caused by other reasons, such as noise caused by collisions resulting from local deviations in the dimensions of the decorative part and gaps between it and the main frame of the car roof.

[0032] Example 2

[0033] The difference between this embodiment and Embodiment 1 is that, in combination with... Figure 2 and Figure 3 As shown, the bottom of the soft block 2 has a slot 4, and the rib 3 on the back of the decorative piece body 1 can be inserted into the slot 4. Because... Figure 2 The ribs 3 on the main body 1 of the decorative component are arranged in a quadrilateral shape. Therefore, the slot 4 in this embodiment is quadrilateral. The quadrilateral slot 4 is set along the bottom edge of the soft block 2. Of course, in other embodiments, the shape formed by the ribs 3 can also be other polygons, such as triangles, pentagons, etc. In this case, the shape of the slot 4 is adapted to the shape formed by the ribs 3.

[0034] To facilitate the insertion of the rib 3 into the slot 4 when the soft block 2 is adhered to the decorative body 1, the slot 4 in this embodiment has a first chamfer 5 on its edge. The top edge of the rib 3 has a second chamfer 6. By setting the first chamfer 5 and the second chamfer 6, it is easier for the rib 3 to be inserted into the slot 4.

[0035] In this embodiment, the depth of the slot 4 is the same as the height of the rib 3, and the width of the slot 4 is less than the thickness of the rib 3. For example, when the thickness of the rib 3 is 2mm, the width of the slot 4 is 1.8mm. When the rib 3 is inserted into the slot 4, the rib 3 tightens the slot 4, and the inner wall of the slot 4 is in close contact with the rib 3, thereby increasing the contact friction between the inner wall of the slot 4 and the rib 3.

[0036] The reason for setting the slot 4 in this embodiment and inserting the rib 3 into the slot 4 is twofold. Firstly, the rib 3 can play a positioning role, ensuring the accurate installation position of the soft block 2. The shape of the slot 4 is not compatible with the shape of the rib 3 in other parts, thus avoiding the problem of installation position deviation and ensuring the consistency and accuracy of the installation position of the soft block 2 on each decorative part body 1. Secondly, the slot 4 and the rib 3 are in close contact, which improves the contact firmness between the soft block 2 and the rib 3, making it difficult for the soft block 2 to fall off from the decorative part body 1. In this way, the soft block 2 is not easy to fall off when the decorative part body 1 with the soft block 2 is moved due to external contact, ensuring that the soft block 2 is still present when the decorative part body 1 is subsequently assembled onto the main frame of the car roof.

[0037] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A top decorative component assembly, comprising a decorative component body, characterized in that: A soft block is installed on the back of the decorative part body; the back of the decorative part body is provided with multiple ribs, which surround and form a placement area, and the soft block is placed in the placement area.

2. A top decorative component assembly, comprising a decorative component body, characterized in that: A soft block is installed on the back of the decorative part body; a rib is provided on the back of the decorative part body, and a slot is provided at the bottom of the soft block, into which the rib is inserted.

3. The top trim assembly according to claim 1 or 2, characterized in that: The soft block is made of rubber or foam.

4. The top decorative component assembly according to claim 2, characterized in that: The slot is polygonal in shape, and the ribs inserted into the slot are also polygonal in shape.

5. The top decorative component assembly according to claim 2, characterized in that: The slot has a first chamfer on its edge.

6. The top decorative component assembly according to claim 2, characterized in that: The top edge of the rib is provided with a second chamfer.

7. The top trim assembly according to claim 1 or 2, characterized in that: The height of the rib is 2-5mm, and the thickness of the rib is 1-2mm.

8. The top decorative component assembly according to claim 2, characterized in that: The width of the slot is less than the thickness of the rib.

9. The top trim assembly according to claim 1 or 2, characterized in that: The bottom of the soft block is adhered to the back of the decorative part body.