Structure for realizing in-film velvet pasting on joint angle surface
By designing the gradually narrowing tip and oblique triangular notch structure on the sealing strip joint angle, the velvet tape adheres simultaneously during the injection molding process, solving the health and environmental problems caused by the use of glue, and realizing the film of the sealing strip joint angle. The inner velvet is applied to improve environmental protection and process efficiency.
Patent Information
- Application Number
- CN202420439193.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The existing sealing strip joint angle surface requires glue to apply or repair the velvet, which causes damage to workers' health and environment and adversely affects the VOC and odor of the sealing strip.
Design a structure to realize the inner membrane of the velvet patch on the joint angle surface. By setting a gradually narrowing tip and a reserved vacant and oblique triangular notch structure on the support surface of the joint angle of the sealing strip, the velvet tape is synchronized during the injection molding joint angle. Adhesive to form a step structure and removes glue for use.
The sealing strip joint angle is realized, which saves process, improves VOC and odor performance, and improves environmental protection.
Smart Images

Figure CN222179177U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a structure for realizing velvet-attachment in a film on a corner surface, which is used in the field of automobile sealing strip structure design. Background Art
[0002] To prevent wear and tear caused by friction with the glass during lifting and lowering, the corners of sealing strips are typically patched or patched with velvet. Both these methods require a glue primer to adhere the velvet tape or velvet. However, the use of glue primers is unhealthy for workers and the environment, and can also negatively impact the VOC and odor levels of the sealing strip itself. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a structure for achieving velvet inside the film on the corner surface, thereby achieving velvet inside the film of the corner of the sealing strip.
[0004] A technical solution to achieve the above-mentioned purpose is: a structure in which velvet is attached to the membrane on the corner surface, including a sealing strip corner and a velvet belt attached to the sealing strip corner. The velvet belt is arranged on the supporting surface of the sealing strip corner, and the top thickness of the supporting surface gradually narrows to form a pointed end. The upper edge of the velvet belt is reserved with a gap structure away from the upper edge of the supporting surface, and the lower edge of the velvet belt is opened with a notch structure away from the lower edge of the supporting surface.
[0005] Furthermore, the length of the vacant structure is 1 cm, with a tolerance of 0.5 cm.
[0006] Furthermore, the thickness of the support surface at the lowest point of the vacant structure is 0.7 cm, with a tolerance of 0.1 cm.
[0007] Furthermore, the notch structure is a triangular notch that opens obliquely downward, so that the lower edge of the velvet belt and the lower edge of the supporting surface form a step structure.
[0008] Furthermore, the vertex angle of the triangular notch is 56.3°, with a tolerance of 5°.
[0009] Furthermore, the length of the step structure is 1 cm, with a tolerance of 0.5 cm.
[0010] Furthermore, the thickness of the fleece tape base film is at least 75 μm.
[0011] The utility model realizes a structure of in-membrane velvet on the corner surface, and the velvet tape can be simultaneously adhered to the corner during the injection molding of the corner, and the molding is carried out in one step, which saves the process of offline velvet pasting or filling, and at the same time removes the glue primer, improves VOC and odor performance, and is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1This is a cross-sectional view of a structure for implementing velvet inside a membrane on a corner surface of the present invention;
[0013] Figure 2 for Figure 1 A magnified view of the detail at point B in the middle;
[0014] Figure 3 for Figure 1 Enlarged detail of point C in the middle. DETAILED DESCRIPTION
[0015] In order to better understand the technical solution of the present invention, the following is a detailed description through specific embodiments:
[0016] See also Figures 1 to 3 .
[0017] The utility model provides a structure in which a velvet is attached to a corner surface of the membrane, comprising a sealing strip corner 1 and a velvet tape 2 attached to the sealing strip corner.
[0018] The velvet tape 2 is arranged on the supporting surface of the sealing strip corner 1. The thickness of the top of the supporting surface gradually narrows to form a tip.
[0019] See also Figure 2 The upper edge of the velvet tape 2 is separated from the upper edge of the support surface by a gap 21. The length L1 of the gap 21 is 1 cm, with a tolerance of 0.5 cm. The thickness d of the support surface at the lowest point of the gap is 0.7 cm, with a tolerance of 0.1 cm.
[0020] See also Figure 3 A notch 22 is defined at the lower edge of the velvet tape 2, spaced from the lower edge of the support surface. This notch is a triangular notch that opens diagonally downward, creating a stepped structure between the lower edge of the velvet tape and the lower edge of the support surface. The vertex angle α of the notch 22 is 56.3°, with a tolerance of 5°. The length L2 of the stepped structure is 1 cm, with a tolerance of 0.5 cm.
[0021] The velvet tape is easily moved by the flow of rubber in the mold, causing its position to shift. This design adds a single-sided undercut positioning on the moving surface, and in order to enhance the adsorption strength of the velvet tape, a velvet tape base film of G3 (75um) and above is selected.
[0022] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.
Claims
1. A structure for realizing velvet inside the film on the corner surface, comprising a sealing strip corner and a velvet tape attached to the sealing strip corner, Features: The velvet belt is arranged on the supporting surface of the sealing strip corner, the top thickness of the supporting surface gradually narrows to form a tip, a gap is reserved at the upper edge of the velvet belt and a notch is opened at the lower edge of the supporting surface.
2. According to claim 1, a structure of realizing inner velvet patching on the corner surface, It is characterized in that The length of the gap structure is 1 cm, with a tolerance of 0.5 cm.
3. According to claim 2, a structure of realizing inner velvet patching on the corner surface, It is characterized in that The thickness of the support surface at the lowest point of the vacant structure is 0.7 cm, with a tolerance of 0.1 cm.
4. According to claim 1, a structure of realizing inner velvet patching on the corner surface, It is characterized in that The notch structure is a triangular notch that opens obliquely downward, so that the lower edge of the velvet belt and the lower edge of the supporting surface form a step structure.
5. According to claim 4, a structure of realizing inner velvet patching on the corner surface, It is characterized in that The vertex angle of the triangular notch is 56.3° with a tolerance of 5°.
6. According to claim 4, a structure of realizing inner velvet patching on the corner surface, It is characterized in that The length of the step structure is 1 cm, with a tolerance of 0.5 cm.
7. The structure of the corner surface having the inner velvet layer of the membrane according to claim 1, Features , the thickness of the velvet tape base film is at least 75μm.
