End seal structure for window outer seal strip of frameless door

Abstract

The application belongs to the technical field of automobile decoration strips, and provides a window outer sealing strip end sealing structure of a frameless door, which comprises a body, a C-column corner and double-sided adhesive tape. One end of the body is integrally connected with the C-column corner. The C-column corner is provided with the double-sided adhesive tape. The C-column corner is clamped and positioned with a door inner plate stopper. After positioning, the C-column corner is fixed to a window frame reinforcing plate through the double-sided adhesive tape. The application has the advantages of simple structure, convenient installation, good sealing effect, attractive appearance, avoidance of the collision between the door outer plate and the side wall C-column trim plate, and improved door opening and closing impact resistance.

Description

Technical Field

[0001] This invention belongs to the field of automotive trim technology and relates to an end sealing structure for the exterior window sealing strip of a frameless car door. Background Technology

[0002] Currently, the bending radius of exterior door and window sealing strips in the automotive industry is generally greater than R300. This is mainly due to the limitations of conventional bending processes; a bending radius that is too small will result in issues such as necking and whitening of the product's appearance, and a narrower cross-sectional opening. However, with the development of the automotive industry, meeting users' personalized needs has become increasingly urgent. Conventional bending processes can no longer accommodate the increasingly smaller bending radii of door shapes. Therefore, there is an urgent need to design an exterior window sealing strip and end sealing structure that can meet customers' demands for vehicle body styling, even when the bending radius of the sheet metal is insufficient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a simple structure, easy installation, good sealing effect and beautiful appearance end sealing structure for the window sealing strip of frameless car doors, in view of the current situation of the prior art.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a sealing structure for the end of the window sealing strip of a frameless car door, characterized in that it includes a body, a C-pillar corner and double-sided tape, one end of the body is integrally connected to the C-pillar corner, the C-pillar corner has double-sided tape, the C-pillar corner is pre-positioned by engaging with the stop of the inner panel of the car door, and after pre-positioning, the C-pillar corner is fixed to the window frame reinforcing plate by the double-sided tape.

[0005] In the above-mentioned sealing structure of the window exterior sealing strip of a frameless car door, the C-pillar corner includes an upper lip, the shape of which is consistent with the shape of the upper lip of the body, and the upper lip is interference-fitted with the side C-pillar sealing strip and the side C-pillar trim panel.

[0006] In the above-mentioned sealing structure of the window outer sealing strip of a frameless car door, the C-pillar corner includes an outer upper lip. The shape of the outer upper lip is consistent with the shape of the outer sealing lip of the body. The outer upper lip extends to the end of the outer sheet metal of the car door and maintains the same interference amount with the outer sheet metal edging of the car door.

[0007] In the above-mentioned frameless car door window sealing strip end sealing structure, the C-pillar corner includes an inverted U-shaped groove, the inside of the inverted U-shaped groove is provided with reinforcing ribs, the front bottom of the inverted U-shaped groove is in contact with the mounting bracket stop, the rear end of the inverted U-shaped groove provides space, and the inner water-cutting corner is inserted into the inverted U-shaped groove.

[0008] In the aforementioned frameless car door window sealing strip end sealing structure, the C-pillar corner includes a lower U-shaped groove, which is engaged with the door inner panel stop.

[0009] In the above-mentioned frameless car door window sealing strip end sealing structure, the C-pillar corner and the body joint are located in the glass section, and the joint is 3-10mm from the glass edge.

[0010] In the above-mentioned frameless car door window sealing strip end sealing structure, one end of the main body is integrally injection molded and connected to a C-pillar corner, and the main body is curved and formed by bending.

[0011] Compared with the prior art, the advantages of this invention are that by injection molding a C-pillar corner at the rear end of the outer sealing strip of the car door, a small bending radius of the car door is achieved. The C-pillar corner is bonded to the window frame reinforcement plate using high-viscosity double-sided adhesive tape. At the same time, a U-shaped groove is set on the lower side of the C-pillar corner to engage with the inner panel stop, which solves the problem that the corner cannot be fixed because the mounting bracket cannot extend to the end. The invention has a simple structure, is easy to install, has good sealing effect, beautiful appearance, and can avoid the outer door panel and the side C-pillar trim panel from hitting each other, thus improving the impact resistance of opening and closing the door. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the components of the exterior window sealing strip of this frameless car door;

[0013] Figure 2 This is an enlarged view of the C-pillar corner of the window seal strip on this frameless car door;

[0014] Figure 3 It is the mating section AA between the body and the glass and sheet metal;

[0015] Figure 4 It is the cross section BB where the C-pillar corner meets the glass and sheet metal;

[0016] Figure 5 It is the mating section CC between the lower U-shaped groove of the C-column corner and the inner plate stop;

[0017] Figure 6 It is the mating section DD between the C-pillar corner and the opposite component;

[0018] Figure 7 It is the mating section EE between the end of the C-column joint and the inner water shear joint. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0021] In the diagram, the components are: body 100; C-pillar corner 200; double-sided tape 300; mounting bracket 400; upper lip of corner 500; outer upper lip of corner 600; inverted U-shaped groove 700; lower U-shaped groove 800; side C-pillar sealing strip 900; side C-pillar trim 1000; exterior sheet metal of door 1001; window frame reinforcement plate 1002; inner water-cut corner 1003; and inner door panel stop 1004.

[0022] like Figure 1 and Figure 2 As shown, the end sealing structure of the window outer sealing strip of this frameless car door includes a body 100, a C-pillar corner 200, and double-sided adhesive tape 300. One end of the body 100 is integrally connected to the C-pillar corner 200. The C-pillar corner 200 has double-sided adhesive tape 300. The C-pillar corner 200 is pre-positioned by engaging with the door inner panel stop 1004, and after pre-positioning, the C-pillar corner 200 is fixed to the window frame reinforcing plate 1002 by the double-sided adhesive tape 300. Here, the cross-sectional shape of the body 100 is inverted U-shaped, and it is installed on the mounting bracket 400 on the inner side of the door outer sheet metal 1001. The 100 is curved and formed by bending. The bending process can realize the first bending process of the car door shape. Here, the function of the double-sided tape 300 is to fix the C-pillar corner 200 to the window frame reinforcement plate 1002. The double-sided tape 300 can achieve continuous connection. When selecting, it should meet the requirements of excellent viscoelastic properties, be able to absorb and disperse dynamic and static shear forces to the greatest extent, compensate for the effects of thermal expansion and contraction of different components, and have excellent resistance to cold shock. It has reliable sealing and waterproof performance, and is highly resistant to moisture and UV radiation.

[0023] Specifically, the C-pillar corner 200 mainly consists of an upper lip 500, an outer upper lip 600, an inverted U-shaped groove 700, and a lower U-shaped groove 800. The material is ethylene propylene diene monomer (EPDM) rubber with a Shore A hardness of 75°. The C-pillar corner 200 requires additional coating to increase its wear resistance. The coating material used is Stahl's WT-91-023S, which provides excellent wear resistance and noise reduction. The C-pillar corner 200 is manufactured using injection molding, which connects the corner to the body 100. During installation... Figure 3 , Figure 4 , Figure 5 , Figure 6 as well as Figure 7 As shown, the upper lip 500 of the corner joint has the same shape as the upper lip of the body 100. The upper lip 500 of the corner joint is interference-fitted with the side C-pillar sealing strip 900 and the side C-pillar trim panel 1000. This allows the elastic deformation of the lip to cushion the door when it is opened and closed. The C-pillar corner joint 200 includes an outer upper lip 600 of the corner joint. The shape of the outer upper lip 600 of the corner joint is consistent with the shape of the outer sealing lip of the body 100. The outer upper lip 600 of the corner joint extends to the end of the outer sheet metal 1001 of the door and is connected to the door. The outer sheet metal 1001 edge maintains the same interference fit. The inverted U-shaped groove 700 has internal reinforcing ribs to increase the strength of the C-pillar corner 200. The front bottom of the inverted U-shaped groove 700 contacts the bracket stop. The rear end of the inverted U-shaped groove 700 provides space for the inner water-cutting corner 1003 to be inserted into the inverted U-shaped groove 700. The inner water-cutting corner 1003 extends into the interior of the inverted U-shaped groove 700, resulting in a more aesthetically pleasing appearance without obvious step differences. The C-pillar corner 200 includes a lower U-shaped groove 800, which is secured... The purpose of attaching the C-pillar corner 200 to the inner door panel stop 1004 is to pre-position and fix the C-pillar corner 200 during installation. During installation, the C-pillar corner 200 engages with the inner door panel stop 1004 via the lower U-shaped groove 800. After pre-positioning, double-sided tape 300 is used to fix the C-pillar corner 200 to the window frame reinforcement plate 1002, thus securing the corner. Finally, the inner water-cut corner 1003 is inserted into the inverted U-shaped groove 700 of the C-pillar corner 200, resolving the issue of the mounting bracket 400 being unable to extend... The problem of the corner not being able to be fixed due to the extension to the end is addressed by the fact that the C-pillar corner 200 and the main body 100 are located at the glass section, and the glass edge is 3-10mm away from the joint. The purpose is to ensure that the lips on both sides are in contact with the glass and have the same amount of interference, so that the force on both sides is even and to avoid tearing of the corner joint due to uneven force on both sides. The present invention has a simple structure, is easy to install, has a good sealing effect, and is aesthetically pleasing. At the same time, it can prevent the outer door panel from hitting the side C-pillar trim 1000, and improve the impact resistance of opening and closing the door.

[0024] The specific embodiments described herein are merely illustrative examples illustrating the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the scope defined by the spirit of the invention.

Claims

1. A sealing structure for the end of the external window sealing strip of a frameless car door, characterized in that, It includes a main body, a C-pillar corner, and double-sided tape. One end of the main body is integrally connected to the C-pillar corner, and the C-pillar corner has double-sided tape. The C-pillar corner is pre-positioned by engaging with the inner door panel stop, and after pre-positioning, the C-pillar corner is fixed to the window frame reinforcement plate by double-sided tape.

2. The end sealing structure of the external window sealing strip of a frameless car door according to claim 1, characterized in that, The C-pillar joint includes an upper lip, the shape of which is consistent with the shape of the upper lip of the main body, and the upper lip is interference-fitted with the side C-pillar sealing strip and the side C-pillar trim panel.

3. The end sealing structure of the external window sealing strip of a frameless car door according to claim 2, characterized in that, The C-pillar joint includes an outer upper lip, the shape of which is consistent with the shape of the outer sealing lip of the body. The outer upper lip extends to the end of the outer sheet metal of the door and has the same interference fit as the outer sheet metal edging of the door.

4. The end sealing structure of the external window sealing strip of a frameless car door according to claim 3, characterized in that, The C-pillar joint includes an inverted U-shaped groove, the inside of which is provided with reinforcing ribs, and the rear end of which provides space for the inner water-cutting joint to be inserted into the inverted U-shaped groove.

5. The end sealing structure of the external window sealing strip of a frameless car door according to claim 4, characterized in that, The C-pillar corner includes a lower U-shaped groove, which engages with the door inner panel stop.

6. The end sealing structure of the external window sealing strip of a frameless car door according to claim 1, characterized in that, The C-pillar corner joint and the body joint are located in the glass section, and the joint is 3-10mm away from the edge of the glass.

7. The end sealing structure of the external window sealing strip of a frameless car door according to claim 1, characterized in that, One end of the main body is integrally injection molded to connect to a C-pillar corner, and the main body is curved and formed by bending.

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