Low step non-clamping lip outer water cut

Abstract

The utility model belongs to the technical field of water cutting of vehicle door, provide a kind of outer water cutting of low step without clamping lip, including metal bright strip part and rubber part, the left side of metal bright strip part is appearance surface, the cross-sectional shape of metal bright strip part is inverted U type, metal bright strip part inverted U type place and the sheet metal installation of vehicle door outer plate and outer plate reinforcing plate, there is a metal U type part with the shape of right U type in the left side of metal bright strip part, metal U type part inside extends upwards, and its inside surface is paved with a layer of rubber pad layer formed by rubber part, when pressing metal bright strip part, rubber pad layer can contact with sheet metal.The utility model has the advantages that by abandoning the traditional clamping lip design, and metal skeleton is extended upwards to realize the direct clamping of sheet metal, so that the product overturning problem caused by insufficient support of soft lip is effectively solved, and the appearance quality and overall performance of product are significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle door water cutting technology, specifically relating to a low-step external water cutter without clamping lip. Background Technology

[0002] Automotive exterior weatherstripping is installed on the outside of car doors and windows to achieve a seal between the door and the window glass, as well as a decorative function. As a functional component, it provides waterproofing, air resistance, dustproofing, noise reduction, and glass clamping; as a decorative component, it serves to decorate the exposed door sheet metal.

[0003] Conventional automotive door weatherstripping is typically installed on the outer door panel, with a 3-5mm gap between its overall shape and the panel's edge. This gap is primarily to prevent interference between the weatherstripping and the sheet metal during installation, even if the product flips over, thus avoiding excessive Z-axis step size. Additionally, the lower side of the weatherstripping features a sealing lip to absorb sheet metal manufacturing tolerances, while the upper side has another sealing lip to match the glass lip and absorb the gap tolerance between the door panel and the glass, as well as the gap tolerance between the sheet metal and the cover plate at the weatherstripping end. However, these two sealing lips are exposed and have a black rubber finish, affecting the overall aesthetics. For a specific car model, the customer requested a reduction in the weatherstripping's profile and a minimum gap between the profile and the door panel, while also ensuring the upper and lower sealing lips are not exposed. This would allow the weatherstripping to appear only as a metallic exterior when viewed from the side. To meet these requirements and ensure the aesthetics of the car's exterior, a redesign of the weatherstripping structure is essential.

[0004] Existing external water-cutting technology designs involve an inner clamping lip to hold the sheet metal and ensure structural stability. Specifically, the outer rubber lower lip serves as the Z-axis positioning point. However, during actual installation, pressing the water-cutting device may cause the product to flip clockwise. To prevent collisions between the design and the sheet metal, which could lead to bulging and other quality issues, a 3-5mm gap is required. Additionally, the upper rubber lip covers the rounded corner of the bright strip, forming a small step that affects the overall aesthetics. Furthermore, the lower lip's deformation results in a large exposed area, further impacting the appearance. Alternatively, the outer rubber lower lip could not be used for Z-axis positioning; instead, the inner hook position could be used. During installation, pressing the design causes downward displacement in the Z-axis direction due to deformation of the lower lip and clamping lip, accompanied by clockwise flipping. To prevent direct contact between the bright strip and the sheet metal, a rubber pad is added inside the bright strip, resulting in a fixed 3.5mm gap between the product design and the sheet metal, limiting the overall downward movement of the design. The exposed area of ​​the rubber lip on the lower side of the exterior is relatively large, which somewhat affects the product's aesthetic appearance. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a low-step external water cutter without clamping lips, which addresses the current state of the technology. By eliminating the traditional clamping lips and extending the skeleton upward to achieve direct clamping of the sheet metal, the problem of product flipping caused by insufficient support of soft lips is effectively solved. The water cutter's shape height is reduced to the minimum, and the upper and lower lips are recessed to ensure that the water cutter's appearance surface color is consistent, forming a low-step, seamless, integrated side shape, which significantly improves the product's appearance and overall performance.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a low-step, non-clamping lip external water cutter, including a metal bright strip part and a rubber part, the left side of the metal bright strip part is the appearance surface, characterized in that the cross-sectional shape of the metal bright strip part is inverted U-shaped, the inverted U-shaped part of the metal bright strip part is installed with the sheet metal composed of the outer panel of the car door and the outer panel reinforcement plate, and there is a metal U-shaped part with a regular U-shape on the left side of the metal bright strip part, the inner side of the metal U-shaped part extends upward, and a rubber pad layer formed by the rubber part is laid on its inner surface, so that the rubber pad layer can contact the sheet metal when the metal bright strip part is pressed.

[0007] In the aforementioned low-step, non-clamping lip outer water cutter, the rubber portion includes a lower lip. The lower lip is located below the outer surface of the metal bright strip portion and close to the outer door panel. The lower lip is inclined outward and forms an angle with the outer door panel. A layer of rubber is laid flat along the bright strip on the inner side of the lower lip to form a support lip.

[0008] In the aforementioned low-step, non-clamping lip external water cutter, the rubber portion also includes an upper lip, which is located on the right outer wall of the inverted U-shape and close to the glass.

[0009] In the aforementioned low-step, non-clamping lip outer water cutter, the rubber part has a positioning boss, which is located on the right inner wall of the inverted U-shaped bright strip. The positioning boss includes an upper positioning boss and a lower positioning boss, which are in contact with the outer edge of the door panel.

[0010] In the aforementioned low-step, non-clamping lip external water cutter, the rubber pad extends upward from the positioning boss to directly above the outer sheet metal edging.

[0011] In the aforementioned low-step, non-clamping lip external water cutter, the rubber portion further includes an anti-detachment barb lip, which is disposed on the lower side of the positioning boss.

[0012] In the aforementioned low-step, non-clamping lip external water cutter, the rubber portion includes a support boss, which is located below the anti-detachment hook lip and contacts the outer plate reinforcing plate.

[0013] In the aforementioned low-step, non-clamping lip external water cutter, the rubber portion also includes a glass sealing lip, which consists of an upper glass sealing lip and a lower glass sealing lip. The side of the glass sealing lip that mates with the window glass is provided with a flocked layer.

[0014] Compared with existing technologies, the advantages of this invention lie in its ability to eliminate the traditional clamping lip design and extend the metal frame upwards to directly clamp the sheet metal, thereby effectively solving the product flipping problem caused by insufficient support from the soft lip. Furthermore, this design minimizes the height of the water-cut profile and uses an inward-curving upper and lower lip design to ensure color consistency on the water-cut surface, achieving a low-step, seamless, integrated side profile that significantly improves the product's appearance quality and overall performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the low-step, non-clamping lip external water cutter;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure after installation with the car door sheet metal. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] In the diagram, the metal bright strip is 100; the rubber part is 200; the rubber pad is 201; the lower lip is 202; the upper lip is 203; the positioning boss is 204; the upper positioning boss is 2041; the lower positioning boss is 2042; the anti-detachment hook lip is 205; the support boss is 206; the glass sealing lip is 207; the upper glass sealing lip is 2071; the lower glass sealing lip is 2072; the flocking layer is 2073; the glass is 300; the outer door panel is 400; and the outer panel reinforcement plate is 500.

[0019] like Figure 1 as well as Figure 2As shown, this low-step, non-clamping lip outer water-cutting device includes a metal bright strip portion 100 and a rubber portion 200. The left side of the metal bright strip portion 100 is the outer surface. The cross-sectional shape of the metal bright strip portion 100 is inverted U-shaped. It is formed by equal cross-section rolling process. The inverted U-shaped part of the metal bright strip portion 100 is installed with the sheet metal composed of the outer door panel 400 and the outer panel reinforcing plate 500. On the left side of the metal bright strip portion, there is a metal U-shaped part with a positive U-shape. The inner side of the metal U-shaped part extends upward, and a rubber pad layer 201 formed by the rubber portion 200 is laid on its inner surface. When the metal bright strip portion 100 is pressed, the rubber pad layer 201 can contact the sheet metal. Here, when the metal bright strip portion 100 is pressed, because the rubber pad layer 201 is in contact with the sheet metal, it effectively avoids the metal bright strip portion 100 from scratching the sheet metal. In addition, the metal U-shaped part, as an elastic support component, can provide stable support for the water cutter, thereby ensuring that the water cutter will not flip over during installation.

[0020] Specifically, the rubber part 200 includes a rubber pad 201, a lower lip 202, an upper lip 203, a positioning boss 204, an anti-detachment hook lip 205, a support boss 206, and a glass sealing lip 207. Each part is described below.

[0021] The rubber pad 201 extends upward from the positioning boss 204 to directly above the outer sheet metal edge. Considering the manufacturing tolerance of the sheet metal, the minimum gap is designed to be 0.8mm, thereby ensuring that the minimum Z-direction distance from the bright strip shape to the sheet metal edge stop can reach 1.6mm.

[0022] The lower lip 202 is located below the outer surface of the metallic trim 100 and close to the outer door panel 400. The lower lip 202 slopes outward and forms an angle with the outer door panel 400. A layer of rubber is laid flat along the inner side of the lower lip 202 to form a support lip. Here, the lower lip 202 slopes outward and forms an angle with the outer door panel 400, and has an appropriate interference fit to ensure sealing performance. In addition, the lower lip 202 is positioned as close to the inner side of the vehicle as possible, and after deformation, it does not exceed the lower rounded corner of the trim, making it invisible from an external view. Furthermore, the support lip formed by laying a layer of rubber upward enhances the support for the sheet metal.

[0023] The upper lip 203 is located on the right outer wall of the inverted U-shape and close to the glass 300. Here, the upper lip 203 is located below the rounded corner of the bright strip, and its deformation range is also controlled below the rounded corner of the bright strip, so it is not visible from the outside of the vehicle. The positioning boss 204 is set on the right inner wall of the inverted U-shape of the bright strip. The positioning boss 204 includes an upper positioning boss 2041 and a lower positioning boss 2042. The upper positioning boss 2041 and the lower positioning boss 2042 are in contact with the edge of the outer door panel 400. Here, the upper positioning boss 2041 and the lower positioning boss 2042 are used to achieve precise positioning of the outer water cutter in the Y direction. In order to avoid the problem of sticking and slipping noise caused by large rubber contact, the contact area between the boss and the sheet metal should be minimized as much as possible. It is recommended that the contact surface size of a single boss be controlled within the range of 0.5-1mm.

[0024] The anti-detachment barb lip 205 is located below the positioning boss 204, providing a strong pull-out force to effectively prevent the water cutter from falling off the sheet metal; the support boss 206 is located below the anti-detachment barb lip 205 and contacts the outer plate reinforcing plate 500. This prevents the water cutter from flipping over during installation.

[0025] The glass sealing lip 207 consists of an upper glass sealing lip 2071 and a lower glass sealing lip 2072. A flocked layer 2073 is provided on the side of the glass sealing lip 207 that mates with the window glass 300. Here, the glass sealing lip 207 has an interference fit with the window glass 300, and both will undergo elastic deformation upon contact with the glass 300, increasing the contact force between the glass sealing lip 207 and the window glass 300, facilitating cleaning of the window glass 300. The upper glass sealing lip 2071 has a bend that faces outward towards the upper sealing protrusion. When the upper glass sealing lip 2071 contacts the window glass 300, the end of the bend contacts the upper lip, forming a closed outer surface without any openings or cavities, reducing wind noise. Simultaneously, the bend can cover any openings, providing dust protection. Here, the flocked layer 2073 contacts the surface of the window glass 300, preventing abnormal noise during the raising and lowering of the window glass 300.

[0026] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications to the described specific embodiments or adopt similar methods to replace them, but without departing from the scope defined by the spirit of this utility model.

Claims

1. A low-step, non-clamping lip external water cutter, comprising a bright metal strip portion and a rubber portion, wherein the left side of the bright metal strip portion is the outer surface, characterized in that, The cross-sectional shape of the metal bright strip is inverted U-shaped. The inverted U-shaped part of the metal bright strip is installed with the sheet metal consisting of the outer door panel and the outer panel reinforcement plate. On the left side of the metal bright strip, there is a metal U-shaped part with a regular U-shape. The inner side of the metal U-shaped part extends upward, and a rubber pad layer formed by rubber is laid on its inner surface. When the metal bright strip is pressed, the rubber pad layer can contact the sheet metal.

2. The low step, no clamp lip outer water break according to claim 1, wherein, The rubber part includes a lower lip, which is located below the outer surface of the metal strip and close to the outer door panel. The lower lip slopes outward and forms an angle with the outer door panel. A layer of rubber is laid flat along the inner side of the lower lip to form a support lip.

3. The low-step, clamp-lip-free outer water-cut of claim 2, wherein, The rubber portion also includes an upper lip, which is located on the right outer wall of the inverted U-shape and close to the glass.

4. A low-step, non-clamping lip external water cutter according to claim 1 or 2, characterized in that, The rubber part has a positioning boss, which is located on the right inner wall of the inverted U-shaped part of the bright strip. The positioning boss includes an upper positioning boss and a lower positioning boss, which are in contact with the edge of the outer panel of the door.

5. The low step, clamp lip free, outer water break according to claim 4, wherein, The rubber pad extends upwards from the positioning boss to directly above the outer sheet metal edging.

6. The low step, no clamp lip outer water break according to claim 1, wherein, The rubber part also includes an anti-detachment barb lip, which is located on the lower side of the positioning boss.

7. The low-step, non-clamping lip external water cutter according to claim 6, characterized in that, The rubber part includes a support boss, which is located on the lower side of the anti-detachment barb lip and contacts the outer plate reinforcing plate.

8. The low-step, clamp-lip-free outer water-cut of claim 7, wherein, The rubber part also includes a glass sealing lip, which consists of an upper glass sealing lip and a lower glass sealing lip. The side of the glass sealing lip that mates with the car window glass is provided with a flocked layer.

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