Low-step seamless integrated outer sealing strip

Abstract

The invention belongs to the technical field of vehicle door water cutting, and provides a low-step seamless integrated outer water cutting which comprises a metal bright strip, a body part, metal core gold, a vehicle door outer plate reinforcing plate and a vehicle door outer plate, the body part and the metal core gold are formed together in a re-pressing mode, and the upper portion of the body part is provided with an upper lip edge and a lower lip edge. The cross section of the body part is in an inverted U shape and is provided with an inverted U-shaped groove, the automobile door outer plate reinforcing plate is clamped into the inverted U-shaped groove, the automobile door outer plate is installed on the right side of the inverted U shape of the body part, the metal bright strip is installed between the upper lip edge and the lower lip edge, and a height difference is formed between the metal bright strip and the automobile door outer plate. The method has the advantages that the height of the water cutting modeling is reduced to the minimum limit of 1.5 mm, the upper lip and the lower lip shrink inwards to be hidden, it is ensured that the color of the appearance face of the bright strip is consistent, low-step seamless integrated side face modeling is achieved, and the appearance quality and the visual effect of a product are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of vehicle door water cutting, and particularly relates to a low-step seamless integrated outer water cutting. BACKGROUND

[0002] The automobile outer water cutting is installed on the outer side of the vehicle door window, and realizes the sealing and decoration between the vehicle door and the vehicle window glass. As a functional part, it has the functions of waterproofing, airproofing, dustproofing, noise reduction, glass clamping, etc. As a decorative part, it has the effect of decorating the exposed vehicle door sheet metal.

[0003] With the development of water cutting molding technology, extremely narrow and extremely wide molding gradually becomes the design trend of some main machine factories. In the traditional low-step outer water cutting molding, the step difference between the bright bar and the sheet metal is usually controlled to be above 2.5 mm. This kind of structure is designed by using an integral aluminum bright bar combined with a transverse sealing strip. There are problems such as high assembly difficulty, complex process flow, high overall cost, insufficient market competitiveness, etc. In addition, the sealing lip at the clamping position is exposed, which causes the color difference between the black sealing strip and the metal bright bar, affecting the overall aesthetic appearance of the vehicle. For example, an existing automobile door outer water cutting structure (CN112193041A) has two problems. First, the entire water cutting molding has a step of 4.5 mm in the Z direction of the vehicle door outer plate, the height difference is large, and the appearance effect is not beautiful enough. There is an exposed lip near the glass side position, and there is a color difference between the black and bright bars, which affects the overall appearance of the bright bar. There is also a way of using a low-step outer water cutting structure with an integral aluminum bright bar combined with a transverse sealing strip assembly design. This design also has the following problems: three sealing strips need to be made and then inserted into the aluminum bright bar, the installation process is complex and low in efficiency; the aluminum bright bar is not only used for appearance decoration, but also extends downward as part of the skeleton, resulting in large use of aluminum material and high cost; the clamping lip part is exposed and filled between the bright bar and the sheet metal, affecting the product appearance effect; although the step between the bright bar and the sheet metal has been reduced to 2.5 mm, the sealing strip is partially exposed, which limits the further reduction of the molding, and the minimum step design cannot be realized. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a low-step seamless integrated outer water cutting, which mainly adopts a combination structure of a rubber body and an aluminum bright bar, effectively reduces the material cost, and realizes a molding height of 1.5 mm, forming a low-step seamless integrated visual effect.

[0005] The technical scheme adopted by the present application to solve the above technical problems is: a low-step seamless integrated outer water cut, characterized in that it comprises a metal bright strip, a body part, a metal core, a door outer plate reinforcing plate and a door outer plate, the body part and the metal core are integrally formed by overmolding, the upper part of the body part has an upper lip and a lower lip, the cross-sectional shape of the body part is inverted "U" shape and forms an inverted U-shaped groove, the door outer plate reinforcing plate is clamped into the inverted U-shaped groove, the door outer plate is installed on the right side of the inverted "U" shape of the body part, and the metal bright strip is installed between the upper lip and the lower lip and forms a height difference with the door outer plate.

[0006] As one of the modes, in the above-mentioned low-step outer water cut without clamping lip, the cross-sectional shape of the metal bright strip is in the form of a straight line, the inner side of the metal bright strip is provided with two oppositely arranged L-shaped clamping feet, the upper lip and the lower lip are provided with a first clamping lip and a second clamping lip between them, the upper side clamping feet of the metal bright strip extend into the groove position of the upper lip and the clamping lip, and the lower side clamping feet of the metal bright strip are clamped into the groove between the second clamping lip and the lower lip.

[0007] In the above-mentioned low-step outer water cut without clamping lip, the lower lip is located on the lower side of the bright strip appearance, and a sealing lip is arranged on the side close to the door outer plate, which is filled between the metal bright strip and the door outer plate round corner, hidden under the metal bright strip and invisible from the outside view.

[0008] In the above-mentioned low-step outer water cut without clamping lip, the upper lip is located on the left side of the L-shaped clamping structure of the metal bright strip and close to the side of the glass, and the upper lip is also hidden under the metal bright strip and invisible from the outside. When the glass rises or falls, the upper sealing lip deforms and contacts the lip, in order to avoid friction and generate abnormal sound, the contact area needs to be sprayed with a coarse particle coating to reduce the friction coefficient and reduce noise.

[0009] In the above-mentioned low-step outer water cut without clamping lip, the cross-sectional shape of the metal core is inverted "U" shape, the side close to the glass extends downward, and the end is provided with a positive "U" shape barb.

[0010] In the above-mentioned low-step outer water cut without clamping lip, the body part is provided with a clamping lip on the upper part, which is arranged on the inner wall of the right side of the inverted U shape of the metal bright strip, and the clamping force is provided by the elastic deformation of the lip to prevent the water cut from falling out.

[0011] In the above-mentioned low-step outer water cut without clamping lip, the left inner wall of the inverted U shape of the metal bright strip is provided with a positioning boss, and a supporting protrusion extends downward below the positioning boss, and the door outer plate reinforcing plate contacts the positioning boss, the supporting protrusion and the clamping lip.

[0012] As another way, in the above-mentioned low-step outer water cutting without clamping lip, the body part has positioning protrusions and is arranged on the outer wall of the inverted U-shaped right side of the metal bright strip and contacts the outer plate of the door. In order to avoid the problem of sticking and sliding noise caused by large-area contact of rubber, the contact area between the protrusion and the sheet metal should be minimized, and it is recommended that the contact surface size of a single protrusion be controlled within 0.5 mm.

[0013] In the above-mentioned low-step outer water cutting without clamping lip, the body part further comprises a supporting barb located on the outside of the inverted U-shaped structure of the metal core sheet metal and extending out a supporting lip in the Y direction towards the outer plate reinforcing plate of the door, and contacting the outer plate reinforcing plate of the door. Here, the supporting force is provided by the elastic deformation of the supporting lip, aiming to provide cross-section stability and prevent the water cutting from turning over during the glass lifting process.

[0014] Compared with the prior art, the advantages of the present application are that the combination structure of the rubber body and the aluminum bright strip is adopted, wherein the aluminum bright strip only retains the visible part of the appearance, thereby significantly reducing the use amount of aluminum material, effectively reducing the material cost, integrating the sealing function and the clamping structure on the rubber body, and at the same time, the body is provided with a special bright strip clamping structure, the bright strip is assembled to the body through a rotating mode, thereby simplifying the assembly process, improving the production efficiency, reducing the manufacturing cost and production difficulty. In addition, the design scheme reduces the modeling height of the water cutting to the minimum limit of 1.5 mm, the upper and lower lips are inwardly retracted and hidden, the color of the bright strip appearance surface is consistent, the low-step seamless integrated side modeling is realized, and the appearance quality and visual effect of the product are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the overall structure of the low-step outer water cutting without clamping lip;

[0016] Figure 2 is a schematic view of the structure of another alternative way of the low-step outer water cutting without clamping lip. DETAILED DESCRIPTION

[0017] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0018] In the figure, the metal bright strip 100; the body part 200; the upper lip 201; the lower lip 202; the inverted U-shaped groove 203; the first clamping lip 204; the second clamping lip 205; the positioning protrusion 206; the clamping lip 207; the supporting protrusion 208; the glass sealing lip 209; the supporting lip 2010; the supporting barb 2011; the positioning protrusion 2012; the metal core sheet metal 300; the outer plate reinforcing plate of the door 400; the outer plate of the door 500.

[0019] Embodiment 1

[0020] like Figure 1 As shown, this low-step seamless integrated outer water-cutting device includes a metal bright strip 100, a body portion 200, a metal core 300, a door outer panel reinforcing plate 400, and a door outer panel 500. The body portion 200 and the metal core 300 are laminated together. The upper part of the body portion 200 has an upper lip 201 and a lower lip 202. The cross-sectional shape of the body portion 200 is an inverted "U" shape, forming an inverted U-shaped groove 203. The door outer panel reinforcing plate 400 is inserted into the inverted U-shaped groove 203. The outer door panel 500 is installed on the right side of the inverted "U" shape of the main body 200. The metal bright strip 100 is installed between the upper lip 201 and the lower lip 202 and forms a height difference with the outer door panel 500. Here, the main feature of this patent is to reduce the height of the water-cut shape to a minimum of 1.5mm. The upper lip 201 and the lower lip 202 are folded inward and hidden to ensure that the color of the bright strip is consistent. This achieves a low-step, seamless, and integrated side profile, which significantly improves the appearance quality and visual effect of the product.

[0021] Specifically, the metal strip 100 has a straight cross-sectional shape. The raw material of the metal strip 100 is aluminum profile, which is formed by equal cross-section extrusion process. The inner side of the metal strip 100 is provided with two L-shaped locking feet arranged opposite each other. There is a first locking lip 204 and a second locking lip 205 between the upper lip 201 and the lower lip 202. The upper locking foot of the metal strip 100 extends into the groove of the upper lip 201 and the locking lip. The metal strip 100 hooks the first locking lip 204 to form a pre-position. Then, the metal strip 100 is pressed clockwise. The lower locking part of the metal strip 100 contacts the guide slope of the second locking lip 205. With the elastic deformation of the second locking lip 205, the lower locking foot of the metal strip 100 is locked into the groove between the second locking lip 205 and the lower lip 202. After the metal strip 100 is pre-positioned, it can be automatically assembled by a special assembly machine.

[0022] The body part 200 mainly comprises a lower lip 202, an upper lip 201, a first clamping lip 204, a second clamping lip 205, a positioning boss 206, a clamping lip 207, a metal core 300, a supporting protrusion 208, and a glass sealing lip 209, wherein the glass sealing lip 209 mainly comprises an upper sealing lip and a lower sealing lip, the glass sealing lip 209 has an interference with the vehicle window glass, and is elastically deformed when in contact with the vehicle window glass, so that the contact force between the sealing lip and the vehicle window glass is increased, the vehicle window glass is facilitated to be cleaned, the glass sealing upper lip is provided with a return bend, the return bend faces the outer side of the upper lip, the end of the return bend is in contact with the upper lip 201 when the upper sealing lip is in contact with the vehicle window glass, the outer surface is closed without an open cavity, the occurrence of wind noise is reduced, meanwhile, the return bend can cover the opening and play a dustproof role, and in addition, the glass sealing lip 209 is provided with a flocking layer on the side matched with the vehicle window glass, that is, the upper sealing lip is provided with an upper flocking layer, and the lower sealing lip is provided with a lower flocking layer. The flocking layer is in contact with the surface of the vehicle window glass, so that the abnormal sound of the vehicle window glass lifting is prevented.

[0023] The lower lip 202 is located on the lower side of the bright strip appearance, and is provided with a sealing lip on the side close to the outer panel 500 of the door, the lip is filled between the metal bright strip 100 and the round corner of the outer panel 500 of the door, hidden under the metal bright strip 100 and invisible from the perspective of the vehicle outside, the upper lip 201 is located on the left side of the L-shaped clamping structure of the metal bright strip 100 and close to the side of the glass, and the upper lip 201 is also hidden under the metal bright strip 100 and invisible from the outside of the vehicle, and when the glass is lifted or lowered, the upper sealing lip is deformed and in contact with the lip, in order to avoid friction and abnormal sound, the contact area needs to be sprayed with a coarse particle coating to reduce the friction coefficient and reduce noise, and the metal core 300 is in the shape of an inverted “U” in cross section, and the side close to the glass extends downward, and the end is provided with a positive “U” shaped barb. The main purpose of arranging the metal core 300 is to enhance the overall rigidity of the product.

[0024] In addition, the body part 200 is provided with a clamping lip 207 on the inverted U-shaped right inner wall of the metal bright strip 100, the clamping force is provided by the elastic deformation of the lip and the water cut is prevented from being cut off, the inverted U-shaped left inner wall of the metal bright strip 100 is provided with a positioning boss 206, the supporting protrusion 208 extends below the positioning boss 206, and the outer panel reinforcing plate 400 is in contact with the positioning boss 206, the supporting protrusion 208 and the clamping lip 207, which provides a supporting force and aims to provide cross-section stability to prevent the water cut from turning over during the lifting of the glass.

[0025] Embodiment 2

[0026] As Figure 2As shown, most of the structure of the patent is the same as embodiment 1, except that the body part 200 structure is different, here the body part 200 mainly includes the lower lip 202, the upper lip 201, the first clamping lip 204, the second clamping lip 205, the positioning protrusion 2012, the clamping lip 207, the metal core gold 300, the support lip 2010, the support barb 2011 and the glass sealing lip 209, the body part 200 has a positioning protrusion 2012, which is arranged on the outer wall of the inverted U-shaped right side of the metal bright strip 100 and contacts the outer panel 500 of the door. In order to avoid the problem of sticking and sliding noise caused by large-area contact of rubber, the contact area between the positioning protrusion 2012 and the sheet metal should be minimized. It is recommended that the contact surface size of a single positioning protrusion 2012 be controlled within 0.5 mm, and there are two clamping lips 207 above and below, which provide clamping force through elastic deformation of the lip, preventing water from being cut off. The body part 200 also includes a support barb 2011 located on the outside of the "U" shaped structure below the metal core gold 300, and extends the support lip 2010 in the Y direction towards the outer panel reinforcement 400 of the door, and contacts the outer panel reinforcement 400 of the door. Here, the support lip 2010 provides support through elastic deformation, aiming to provide cross-sectional stability and prevent water from turning over during the glass lifting process.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present application, and those skilled in the art can make various modifications or use similar ways to replace the described specific embodiments without departing from the scope defined by the spirit of the present application.

Claims

1. A low-step seamless integrated external water cutter, characterized in that, It includes a metal bright strip, a main body, a metal core, a door outer panel reinforcement plate, and a door outer panel. The main body and the metal core are laminated together. The upper part of the main body has an upper lip and a lower lip. The cross-sectional shape of the main body is an inverted "U" shape and forms an inverted U-shaped groove. The door outer panel reinforcement plate is inserted into the inverted U-shaped groove. The door outer panel is installed on the right side of the inverted "U" shape of the main body. The metal bright strip is installed between the upper lip and the lower lip and forms a height difference with the door outer panel.

2. The low-step seamless integrated external water cutter according to claim 1, characterized in that, The metal strip has a straight cross-section and two L-shaped locking feet arranged opposite each other on its inner side. There is a first locking lip and a second locking lip between the upper lip and the lower lip. The upper locking foot of the metal strip extends into the groove of the upper lip and the locking lip, and the lower locking foot of the metal strip is locked into the groove between the second locking lip and the lower lip.

3. The low-step seamless integrated external water cutter according to claim 2, characterized in that, The lower lip is located below the bright strip and has a sealing lip on the side near the outer door panel. This lip fills the space between the bright metal strip and the rounded corner of the outer door panel and is hidden under the bright metal strip and is not visible from the outside of the vehicle.

4. The low-step seamless integrated external water cutter according to claim 2, characterized in that, The upper lip is located on the left side of the L-shaped metal strip snap-fit ​​structure and close to the glass. The upper lip is also hidden under the metal strip and is not visible from the outside of the vehicle.

5. The low-step seamless integrated external water cutter according to claim 1, characterized in that, The metal core has an inverted "U" shaped cross-section, extending downwards on the side closest to the glass, with a regular "U" shaped barb at the end.

6. The low-step seamless integrated external water cutter according to claim 1, characterized in that, The main body has a clamping lip, which is located on the inner right side of the inverted U-shaped metal strip. The lip provides clamping force through elastic deformation and prevents the water-cut strip from coming off.

7. The low-step seamless integrated external water cutter according to claim 1, characterized in that, The metal bright strip has a positioning boss on the inner left side of the inverted U-shaped inner wall, and a support protrusion extends below the positioning boss. The door outer panel reinforcing plate contacts the positioning boss, the support protrusion, and the clamping lip.

8. A low-step seamless integrated external water cutter according to claim 2, 3, or 4, characterized in that, The main body has positioning protrusions, which are located on the right outer wall of the inverted U-shaped metal strip and contact the outer panel of the door.

9. A low-step seamless integrated external water cutter according to claim 8, characterized in that, The main body also includes a support barb located on the outside of the "U"-shaped structure under the metal core, and extending a support lip in the Y direction toward the door outer panel reinforcement plate, and contacting the door outer panel reinforcement plate.

Images