Vehicle door upper seal system

Abstract

The present invention provides an upper door seal system for a vehicle that employs a non-destructive fitting and fixing structure to fundamentally eliminate the risk of water leakage and corrosion caused by drilling, and also makes it possible to significantly simplify the assembly process. By combining a multiple sealing design including an outer water cut structure and an outer seal lip, the system significantly improves the waterproof performance, quietness, durability, and reliability of the entire vehicle. [Solution] The vehicle door upper seal system includes a glass guide channel. The mounting portion of the guide channel is provided with a first mounting rail (7) with a U-shaped cross section, and an inner lip (8) and inverted tooth-like protrusions (9) are formed on the opposing inner wall. This allows the glass guide channel to be securely fixed to the vehicle body sheet metal using a non-penetrating fitting structure without damage. The sealing portion of the guide channel extends from the mounting portion and elastically abuts against the upper end of the door glass (1) to form a primary seal.

Description

[Technical Field]

[0001] The present invention relates to the field of automobile manufacturing technology, and more particularly to a glass guide channel sealing structure for a vehicle door. [Background technology]

[0002] In modern automobile design, doors are openings that allow passengers to get in and out, and at the same time, they are an important component that seals the passenger compartment from the outside environment (rainwater, dust, noise, etc.) and ensures airtightness. Of these, the door seal system, especially the sealing structure above the window, is a critical technological element that is directly linked to the comfort, durability, and safety of the entire vehicle. In conventional framed doors, the window glass fits completely within the door frame when raised or lowered, making it easy to guide and seal the glass. However, as vehicle designs become more streamlined and emphasize styling, sashless door structures are becoming more widely adopted in a variety of vehicle models, including coupes, sedans, and SUVs. In sashless doors, the upper edge of the glass when closed comes into direct contact with the sheet metal of the roof side panel or a dedicated seal strip, eliminating the support and covering functions previously provided by the frame. Therefore, higher precision and reliability are required for the sealing system installed in the roof section than ever before. Currently, the most common method is to directly fasten a pre-formed glass guide channel or sealing strip to the corresponding sheet metal part on the vehicle body. This fastening method often uses mechanical fasteners such as rivets and screws. Although this method is excellent in terms of joining strength, it has the following drawbacks: (1) It impairs the integrity of the vehicle body structure. To attach the rivet, holes must be drilled in the sheet metal, which disrupts the anti-corrosion coating and structural continuity, and can become a starting point for corrosion. After long-term use, the metal around the holes can become fatigued due to vibration and stress concentration, which can lead to microcracks. (2) Risk of water leakage. It is difficult to ensure complete watertightness with rivets. Even if sealant is filled between the fastening parts and the sheet metal, the seal is easily weakened by aging, thermal expansion and contraction, and vibrations during driving, resulting in gaps. As a result, rainwater and water from car washes seep into the interior of the vehicle, causing mold growth in the interior materials and failure of electronic components, significantly reducing comfort and the value of the vehicle. (3) Wind noise. The discontinuous structure of the rivets and tiny gaps disrupt the airflow, causing wind noise when driving at high speeds, which reduces the quietness of the vehicle interior (NVH performance). To address these issues, various improvements have been proposed in the prior art. For example, Chinese patent application CN202111361784.7 discloses a door structure that uses a glass guide channel seal strip with horizontal and vertical elastic members. While this technology has the effect of improving the gap between the glass and the sealing member, it still requires rivets or other fastening methods, and does not fundamentally address the risk of structural damage and water leakage. Therefore, there is a strong demand for the development of a new upper door seal system that can achieve reliable sealing performance without drilling holes in the body sheet metal. Such a system would prevent water leakage and corrosion at the joints and significantly improve the sealing performance and durability of the entire vehicle. Summary of the Invention

[0003] The purpose of this invention is to solve problems such as damage to sheet metal parts, water leakage, wind noise, corrosion, and reduced assembly efficiency caused by the through-fixing method such as rivets used in conventional vehicle door seal systems.

[0004] Therefore, the present invention adopts the following technical configuration: The vehicle door upper seal system of the present invention comprises a glass guide channel, which includes the following elements: Mounting part: The vehicle includes a first mounting rail that is fixed to a sheet metal portion of the vehicle body by fitting. The first mounting rail has a U-shaped cross section that can accommodate the end of the sheet metal portion, and its opposing inner wall surfaces are provided with at least one inner lip that abuts on one side of the sheet metal portion and at least one inverted tooth-shaped protrusion that engages with the other side. Sealed part: The mounting portion extends from the mounting portion and elastically contacts the upper end surface of the movable glass that can be raised and lowered to form a tight seal. Preferably, the angle between the sealing portion and the mounting portion is greater than 90° and less than 180°. Preferably, the sealing portion includes a base portion having an L-shaped cross section and a sealing cover connected to the base portion, the sealing cover being adapted to abut against the upper end of the movable glass, and forming a hollow structure with the base portion to provide elastic deformation performance. Preferably, the sealing portion further includes a second mounting rail connected to the other side of the base portion, and a wavy rib is formed on the inner wall surface of the second mounting rail, and is configured to form line contact with the wavy rib when the sealing cover is deformed under pressure. Preferably, an internal skeleton made of metal or hard plastic having a reinforcing effect is provided inside the mounting portion, and the internal skeleton extends at least along the length of the first mounting rail to provide rigidity and to maintain the force with which the mounting portion securely grips the vehicle sheet metal member. Preferably, the mounting portion further includes an outer sealing lip, which extends from the first mounting rail toward the sealing portion at an angle and is configured to abut against a side surface of the movable glass. Preferably, the system further includes an outer water cut, the outer water cut being arranged outside the sealing portion, and the base portion being fitted to the inner upper surface of the outer water cut and configured to function as a shield and guide for rainwater. Preferably, the sealing portion further comprises a sealing strip, which is fixed to the sealing portion, extends obliquely upward, and is configured to elastically abut against the inside of the outer water cut and close the gap between the base portion and the outer water cut. Preferably, an abrasion-resistant layer is integrally formed by a co-extrusion molding method on the surface where the seal cover and the movable glass come into contact, and the angle between the sealing portion and the mounting portion is 90°. Preferably, an abrasion-resistant layer is provided on the surface where the seal cover and the movable glass come into contact, and is hardened after spray application, and the angle between the sealing portion and the mounting portion is greater than 90° and less than 180°, so as to provide an open working space for the seal cover during spray application.

[0005] The present invention has the following beneficial effects: The sealing system of this invention is configured as a multi-layer waterproof barrier structure, which includes an outer water cut, an outer seal lip, and a seal cover as the main sealing element. Rainwater is first blocked and guided by the outer water cut, and the remaining water and air flows are further blocked by the outer seal lip, and finally, they are completely isolated by the seal formed between the seal cover and the top edge of the glass. This ensures extremely high waterproof reliability. This device also uses a lip and inverted tooth projections on the first connecting rail to securely fasten the glass guide channel to the car body sheet metal in a non-penetrating manner, which eliminates the need to drill holes in the car body, protecting the structural integrity of the sheet metal and its anti-corrosion coating, and fundamentally eliminating the risks of water leakage, wind noise, and corrosion caused by joint holes. The wear-resistant layer formed on the surface of the seal cover significantly reduces friction and operating noise when the movable glass is raised and lowered, making operation smoother and quieter.In addition, the hollow seal cover and wavy rib design provide excellent elastic deformation for sealing, prevent sticking and abnormal noise that can occur during long-term use or under high temperature conditions, and extend the useful life of the seal system. Furthermore, in the upper gate seal system of this invention, the glass guide channel is not fixed to the sheet metal of the car body, door, or door frame with fasteners such as rivets, so it is not subject to damage from rivets and is less likely to develop gaps at the joints. As a result, water leakage and dripping can be fundamentally prevented. In addition, the adoption of a fitting-type mounting structure that can be installed simply by pushing it in eliminates the need for complex processes such as drilling, applying adhesive, tightening screws, and riveting, greatly simplifying the work process on the final assembly line. This reduces work time, reduces manufacturing costs, and ensures consistent installation quality. The wear-resistant layer on the surface of the seal cover is formed by the following two preferred methods. First, when co-extruding a lubricating material with a low friction coefficient to form it integrally with the seal cover body, the angle between the sealing part and the mounting part is set to 90° to provide optimal conditions for the co-extrusion die design and material extrusion stability. Second, when spraying paint onto the surface of the seal cover, the angle should be set to be greater than 90° and less than 180°, and the seal cover 6 should be kept open to ensure sufficient working path and space for the spray nozzle, ensuring the uniformity and integrity of the paint film. This coordinated design of the structure and manufacturing process allows for flexible selection of the optimal manufacturing method depending on cost, performance, and production requirements. As a result, production efficiency and versatility are improved, and it is possible to simultaneously satisfy high performance and aesthetic requirements, especially for sashless doors. [Brief explanation of the drawings]

[0006] In order to more clearly explain the technical solutions of the present invention, the following will refer to and explain the drawings in a clear and understandable manner. Obviously, the following drawings are only some embodiments of the present invention, and do not limit the protection scope of the present invention, and those skilled in the art can derive other drawing structures based on these drawings without any creative efforts. [Figure 1] FIG. 1 is a schematic diagram of the present invention. [Figure 2] FIG. 2 is a cross-sectional view of the present invention. [Figure 3] FIG. 3 is an enlarged view of part A in FIG. [Figure 4] FIG. 4 is a schematic diagram of a glass guide channel according to an embodiment of the present invention. [Figure 5] FIG. 5 is a schematic diagram of a glass guide channel according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0007] The technical means in the embodiments of the present invention will be described clearly and completely below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. The embodiments described herein are merely examples of the present invention and do not limit the scope of the invention. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without any creative ingenuity fall within the scope of protection of the present invention. In the drawings, the same reference numerals or letters refer to similar elements, and therefore, if an element is described in one drawing, it need not be described again in subsequent drawings.

[0008] The purpose of the upper door seal system of this invention is to improve the sealing performance and durability of doors, especially sashless doors. When the door is closed, the upper edge of the movable glass 1 contacts the seal cover 6 in the guide channel, and the seal cover 6 elastically deforms to minimize the gap and improve the sealing effect. As shown in Figure 1, the upper door seal system of the present invention includes a glass guide channel having a sealing portion and a mounting portion. The sealing portion and the mounting portion form an angle between them, which is greater than or equal to 90° and less than 180°. The mounting portion is for fixing to the body sheet metal, and the sealing portion abuts against the upper end surface of the movable glass 1 to achieve sealing. The glass guide channel of this invention is preferably manufactured by one-piece extrusion molding, which ensures continuity and uniformity of the cross-sectional shape. The main components, such as the base 4, seal cover 6, first mounting rail 7, and second mounting rail 11, are primarily made of EPDM (ethylene propylene diene monomer) rubber, which has excellent weather resistance, aging resistance, and elasticity. Thermoplastic elastomers (TPE) and polyvinyl chloride (PVC) can also be used depending on cost and application. The sealing part comprises a base part 4, a sealing strip 5, a second mounting rail 11 and a sealing cover 6, and the mounting part comprises a first mounting rail 7, an inner lip 8 and an inverted tooth protrusion 9.

[0009] As shown in Figure 4, an inner skeleton 12 is provided within the mounting portion and extends into the sealed portion. This structure stably maintains the angle between the two portions and prevents deformation due to high temperatures or aging. In another embodiment shown in Figure 5, a U-shaped inner skeleton 12 is provided within the mounting portion, but the inner skeleton 12 does not extend into the sealed portion to allow the angle between the two portions to be freely adjusted within a range of 90° to 180° and to facilitate the painting process. Specifically, the angle is the angle between the first mounting rail 7 and the second mounting rail 11. To measure the angle, as explained with reference to Figure 4, a first center line is drawn in the up-down direction along the center of the plate thickness of the first mounting rail 7, and a second center line is drawn in the left-right direction along the center of the plate thickness of the second mounting rail 11, and the angle between the two lines is measured to determine the angle. The inner skeleton 12 acts as a reinforcing member, providing the necessary rigidity and shape retention for the mounting portion, enabling secure clamping to the vehicle body sheet metal. The inner skeleton 12 is typically made of a metal material such as a pressed steel or aluminum strip, providing sufficient structural strength. During manufacturing, the metal inner skeleton 12 is co-extruded into the rubber material of the first mounting rail 7. For applications requiring high flexibility, such as bending sections, the inner skeleton 12 may be made of a segmented metal insert or a highly rigid reinforced resin.

[0010] In this invention, the sealing function for the upper end of the movable glass 1 is achieved by providing a glass guide channel. Here, the mounting portion's main function is to securely connect to the vehicle body sheet metal, but no through-type fasteners such as rivets are used, which would damage the vehicle body sheet metal or the glass guide channel. Therefore, the glass guide channel in the vehicle door upper seal system of this invention reliably seals the upper end of the movable glass 1 while preventing water leakage due to holes at the joint between the sheet metal and the glass guide channel. In addition, an angle between the sealing portion and the mounting portion (hereinafter referred to as the "included angle") is set to be greater than or equal to 90° and less than 180°, and this included angle can be variably adjusted depending on the manufacturing process. Preferably, as shown in Figures 2 to 4, when the included angle is 90°, the sealing surface is provided with an abrasion-resistant layer 13 formed by co-extrusion of a lubricious material with a low coefficient of friction. When the included angle is 90°, the outer lip 10 acts as a barrier when spraying abrasion-resistant paint evenly onto the outer surface of the sealing portion, making application difficult. However, this problem can be overcome by co-extrusion molding a lubricious material with a low coefficient of friction with the sealing portion, making it possible to form the abrasion-resistant layer 13 at an included angle of 90° without expanding the sealing portion. The low friction coefficient lubricating material is prepared according to the formulation and manufacturing method of any of the examples described in Chinese Patent Publication No. CN117186524A, preferably according to the formulation and manufacturing method of Example 8 of the same patent. By forming the wear-resistant layer 13 by co-extrusion of the lubricating material and the sealing portion, the contact noise when the movable glass 1 moves up and down is significantly reduced, and wear on both the movable glass 1 and the glass guide channel sealing portion is suppressed, extending the service life. Furthermore, the lubricating material has excellent wear resistance and aging resistance, maintaining long-term sealing performance and contributing to reduced maintenance costs. The low-friction material also improves waterproofing, preventing water from entering the vehicle during rain, helping to keep the interior dry and protecting electronic devices and interior components from moisture.

[0011] As another embodiment, as shown in Figure 5, a structure in which the included angle between the sealing portion and the mounting portion is greater than 90° but less than 180° can be adopted. This ensures sufficient space for expansion when coating the sealing portion surface. In this case, the outer sealing lip 10 does not obstruct the paint spray, allowing the abrasion-resistant paint to be directly sprayed onto the surface to form an abrasion-resistant layer. As a result, even when the car window is frequently opened and closed, the abrasion-resistant layer prevents damage and leakage from the glass guide channel sealing portion. As is well known to those skilled in the art, abrasion-resistant paint applied to the surface of a sealing strip can be converted into a dense, strong, hardened film by volatilizing the solvent through high-temperature treatment. The abrasion-resistant paint used in this invention can be a commercially available product, and no special creative work is required. For example, polyurethane paint can be used as the abrasion-resistant paint for sealing strips. Using water-based polyurethane paint for solvent-based paints replaces conventional organic solvents (xylene, acetone, etc.) with water, reducing the VOC (volatile organic compound) content of the entire sealing strip. Preferably, the sealing portion includes a rod-shaped base portion 4 having an L-shaped cross section and a seal cover 6 fixed to the base portion 4, the space between the base portion 4 and the seal cover 6 being hollow, and the seal cover 6 being elastically deformable. The base 4 supports the seal cover 6, providing structural rigidity and a certain degree of hardness. When the movable glass 1 moves upward, it absorbs the force. The seal cover 6 has elastic deformation properties due to its hollow structure with the base 4. When the movable glass 1 rises and comes into contact with the seal cover 6, the seal cover 6 elastically deforms, enveloping the upper end of the movable glass 1 until it reaches the corrugated rib 14. At this time, the gap between the movable glass 1 and the seal cover 6 decreases, improving sealing performance when the door is closed. The wavy rib 14 is a structure that converts the contact between the seal cover 6 and the inner wall of the second mounting rail 11 from surface contact to line contact. In high-temperature environments, rubber materials tend to become sticky, and when the movable glass 1 repeatedly presses against the seal cover 6, the seal cover 6 may stick to the bottom surface of the second mounting rail 11, potentially causing abnormal noise. The provision of the wavy rib 14 prevents sticking and abnormal noise, and provides a cushioning effect when the door is opened and closed and when road vibrations occur. Preferably, the sealing system includes an outer water cut 2, a spacer 3 of the same length fixed inside the outer water cut 2, and a base portion 4 fitted between the spacer 3 and the outer water cut 2. The outer water cut 2 provides the first stage of waterproofing before the movable glass 1 and seal cover 6 are sealed. The opening between the outer water cut 2 and the movable glass 1 is located below the top edge of the glass, so even during rainfall, rainwater is less likely to flow directly into the gap between the movable glass 1 and seal cover 6. In addition, the outer water cut 2 covers the glass guide channel, which helps maintain the beauty of the vehicle's exterior.

[0012] Preferably, the sealing part further includes a sealing strip 5 fixed to one side of the second mounting rail 11 and inclined upward toward the mounting part to abut against the outer water cut 2 . The sealing strip 5 further reduces the gap between the base part 4 and the outer water cut 2 when the sealing part and the outer water cut 2 are fitted together, improving waterproof performance. Preferably, the mounting part includes a first mounting rail 7 with a U-shaped cross section, with a plurality of inner lips 8 on one side of the inner wall of the first mounting rail 7 and a plurality of inverted teeth 9 on the other side. When the mounting part is connected to a vehicle body sheet metal part, the sheet metal part fits into the first mounting rail 7, and the inverted teeth 9 and the inner lips 8 elastically contact, thereby securely fixing the glass guide channel to the vehicle body. A rigid endoskeleton 12 is embedded inside the first mounting rail 7, improving the deformation resistance and mounting strength of the sealing system. The U-shaped first mounting rail 7 replaces the conventional riveted glass guide channel structure, fundamentally eliminating the risk of sheet metal damage and water leakage caused by through-hole fixing. In addition, the installation of an inner lip 8 and inverted teeth 9 enhances mounting strength and sealing performance. Preferably, the mounting portion is provided with an outer sealing lip 10 which is fixed to the sealing portion side of the first mounting rail 7, inclined upward, and elastically contacts the end surface of the movable glass 1. The outer seal lip 10 functions as a third waterproof barrier, and even if rainwater gets in between the movable glass 1 and the seal cover 6, it abuts against the end face of the movable glass 1 to prevent water from getting in, keeping the interior of the vehicle dry and improving the overall waterproof performance. During installation, the mounting portion of the glass guide channel, i.e., the U-shaped first mounting rail 7, is aligned with the edge of the vehicle door window frame or the sheet metal flange on the upper part of the vehicle body and pushed in to complete the installation. At this time, the U-shaped opening of the first mounting rail 7 functions as a guide during installation. The inner lips 8 on the inner wall are the first to come into contact with the sheet metal member. These lips 8 have a certain elasticity, providing initial positioning and sealing functions, and are also adaptable to thickness tolerances of the sheet metal member. As the sheet metal member is pushed further in, the edge of the sheet metal member passes over the inverted teeth 9. The inverted teeth 9 are designed at a special angle, making insertion easy but removal difficult. The tips or tooth surfaces of the inverted teeth 9 abut firmly against the surface of the sheet metal member, and in cooperation with the inner lip 8, generate a strong gripping force. This ensures that the entire glass guide channel is securely fixed to the vehicle body.

[0013] It should be understood that the present invention is not limited to the precise configuration shown in the accompanying drawings. For example, the number, shape, and arrangement of the inner lip 8 and the inverted teeth 9 can be adjusted depending on the thickness of the sheet metal being gripped and the required gripping force. A smaller inverted tooth angle can be used for thicker sheets, and the number of inverted teeth can be increased if a greater pull-out force is required. The cross-sectional shape of the seal cover 6 can also be designed in a variety of ways. For example, a double hollow structure can be used to achieve more complex compression and rebound characteristics. Furthermore, a specific texture can be pre-formed on the surface that comes into contact with the glass to improve the sealing effect. If the requirements for waterproof performance are very high, the seal strip 5 and the outer water cut 2 can be fitted together more closely or can be formed as an integral part by co-extrusion.

[0014] The above supplementary explanation makes the technical configuration, internal working principle, and significant advantages of the present invention over the prior art clearer. The present invention systematically solves the sealing problem of the top of a sashless door through an ingenious non-destructive mounting structure and a multi-sealing design. The purpose of the present invention is to improve the sealing performance and durability of vehicle doors, especially sashless doors. When the door is closed, the upper edge of the movable glass 1 contacts the seal cover 6 in the glass guide channel, and the seal cover 6 elastically deforms to minimize the gap and improve the sealing effect. As the movable glass 1 rises, the outer sealing lip 10 is the first to come into contact with the inner edge of the movable glass 1. The lip 10 is inclined upward and flexible, smoothly guiding the glass and forming a first dynamic seal, effectively blocking most of the wind and rainwater from the front when traveling at high speeds. As the movable glass 1 rises further, just before its upper end comes into contact with the seal cover 6, the outer water cut 2, the outermost part of the system, performs a shielding function similar to the eaves of a roof. This protects the sealing structure below from direct sunlight and foreign objects, and directs rainwater flowing over the top surface of the vehicle body outward, reducing the amount of water reaching the main sealing parts. When the upper surface of the movable glass 1 contacts the sealing cover 6, the hollow structure of the base 4 and the sealing cover 6, together with the elasticity of the sealing cover 6 itself, causes controlled elastic deformation, tightly enveloping the upper contour of the movable glass 1. This forms a primary sealing surface with continuous and uniform pressure, effectively blocking out moisture and noise. After the glass is completely closed, the compressed seal cover 6 may come into contact with the inner wall of the second mounting rail 11. The corrugated ribs 14 on this inner wall convert surface contact into line contact, reducing the contact area. This prevents adhesion even when the rubber softens in high-temperature environments, suppressing noise and peeling when the glass is opened and closed. It also provides a cushioning effect for the glass when driving on uneven roads, reducing vibration and noise.

[0015] The glass guide channel mounting structure of this invention does not use fasteners such as rivets, which prevents damage to the body sheet metal and reduces the risk of gaps at the joints, effectively preventing water leakage and dripping. The first mounting rail 7, inner lip 8, and inverted tooth protrusions 9 securely fasten the glass guide channel to the body sheet metal, ensuring high connection strength and sealing performance. Furthermore, two processing methods are provided for the sealing cover 6. When a low-friction lubricating material is co-extruded and integrally formed with the sealing cover body, the angle between the sealing part and the mounting part is maintained at 90° to ensure uniform material distribution and low friction characteristics. When spray coating is applied to the surface of the sealing cover 6, the angle is set to be greater than 90° but less than 180°, and the sealing cover 6 is left open to ensure work space for coating, ensuring uniformity of the coating film and effective curing. This design not only improves the sealing performance of the vehicle door, but also enhances its durability and ease of maintenance. By reducing friction between the movable glass 1 and the seal cover 6, noise and wear generated when the movable glass 1 moves up and down are suppressed, and the service life of each component is extended. In addition, optimizing the processing process for the seal cover 6 improves production efficiency and product quality, achieving a structure that combines excellent functionality and practicality while satisfying aesthetic requirements, particularly for sashless doors.

[0016] The above is only a preferred embodiment of the present invention, and does not limit the present invention. Those skilled in the art can make various modifications and changes based on the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. [Explanation of symbols]

[0017] 1 Movable Glass 2. Outer water cut 3 spacers 4 Base 5 Seal Strip 6 Seal cover 7 First mounting rail 8 Inner lip 9 Inverted denticles 10 Outer sealing lip 11 Second mounting rail 12 Endoskeletons 13 Wear-resistant layer 14 Wave rib

Claims

1. A vehicle door upper seal system having a glass guide channel, the glass guide channel includes a mounting portion; The mounting portion includes a first mounting rail (7) that is fixed to a sheet metal portion of the vehicle body by fitting thereto, The first mounting rail (7) has a U-shaped cross section that can accommodate the end of the sheet metal part, The first mounting rail (7) has, on its opposing inner wall surfaces, at least one inner lip (8) that abuts against one side of the sheet metal portion and at least one inverted tooth-like protrusion (9) that engages with the other side of the sheet metal portion. The glass guide channel further includes a sealing portion; The sealing portion extends from the mounting portion and elastically contacts the upper end surface of the movable glass (1) that can be raised and lowered to form a seal. A vehicle door upper seal system comprising:

2. 2. The vehicle door upper seal system according to claim 1, wherein the angle between the sealing portion and the mounting portion is greater than 90 degrees and less than 180 degrees.

3. The sealing portion is A base portion (4) having an L-shaped cross section; and a seal cover (6) connected to the base portion (4), The seal cover (6) is for contacting the upper end of the movable glass (1), and forms a hollow structure with the base part (4), giving it elastic deformation performance.

3. The vehicle door upper seal system according to claim 1, wherein:

4. The sealing portion includes a second mounting rail (11) connected to the other side of the base portion (4); A wave-shaped rib (14) is formed on the inner wall surface of the second mounting rail (11), and is configured to form line contact with the wave-shaped rib (14) when the seal cover (6) is deformed under pressure.

4. The vehicle door upper seal system according to claim 3,

5. An internal skeleton (12) made of metal or hard plastic having a reinforcing effect is provided inside the mounting portion, The inner skeleton (12) extends at least along the length of the first mounting rail (7) to provide rigidity and maintain a force that allows the mounting portion to securely grip the vehicle sheet metal member.

3. The vehicle door upper seal system according to claim 1, wherein:

6. The mounting portion comprises an outer sealing lip (10); The outer sealing lip (10) extends from the first mounting rail (7) toward the sealing portion at an angle and is configured to abut against the side surface of the movable glass (1).

3. The vehicle door upper seal system according to claim 1, wherein:

7. With an outer water cut (2), The outer water cut (2) is arranged outside the sealing part, and the base part (4) is fitted to the inner upper surface of the outer water cut (2) and is configured to perform the function of blocking and guiding rainwater.

4. The vehicle door upper seal system according to claim 3,

8. The sealing portion comprises a sealing strip (5), The sealing strip (5) is fixed to the sealing portion, extends obliquely upward, and elastically abuts against the inside of the outer water cut (2) to close the gap between the base portion (4) and the outer water cut (2).

8. The vehicle door upper seal system according to claim 7,

9. An abrasion-resistant layer (13) formed integrally by co-extrusion molding is provided on the surface where the seal cover (6) and the movable glass (1) come into contact, and the angle between the sealing part and the mounting part is 90°.

4. The vehicle door upper seal system according to claim 3,

10. An abrasion-resistant layer (13) is provided on the surface where the seal cover (6) and the movable glass (1) come into contact with each other and is hardened after spray coating, and the angle between the sealing part and the mounting part is greater than 90° and less than 180°, so that an open working space is provided for the seal cover (6) during spray coating.

4. The vehicle door upper seal system according to claim 3,

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