Vehicle window glass lower rail structure and vehicle

By using an integrated lower guide rail structure for the car window glass, the problems of complex structure and low assembly precision in the existing technology are solved, achieving the effects of simplifying the process and improving positioning accuracy.

CN224562298UActive Publication Date: 2026-07-28HENNIGES (TAICANG) SEALING SYST CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENNIGES (TAICANG) SEALING SYST CO LTD
Filing Date
2025-10-15
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

The existing lower guide rail structure for vehicle windows is complex, the manufacturing process is complicated, the assembly precision is not high, and the positioning is unstable.

Method used

The window glass lower guide rail structure is made of one piece, including guide rail groove and elastic sealing strip. The elastic sealing strip is composed of elastic lip, support and connecting edge, and is formed into a whole by two-color injection molding process, which simplifies the structure and improves connection strength and positioning accuracy.

Benefits of technology

The guide rail groove and elastic sealing strip are integrated, which reduces the complexity of the manufacturing process, improves the assembly accuracy and positioning stability, and ensures that the car window glass slides smoothly and has a good sealing effect.

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Abstract

The utility model relates to vehicle accessory technical field discloses a car window glass lower guide rail structure and vehicle, and car window glass lower guide rail structure includes: the body and elastic sealing strip, the body includes the guide rail groove. Two elastic sealing strips are connected to the outer end part of the opposite two inner walls of guide rail groove respectively, and the elastic sealing strip includes elastic lip and support piece, and the elastic lip is suitable for bending to the inside of guide rail groove with the outer end part as the rotating center, and one end of support piece is pasted with the inner wall of guide rail groove, and the other end of support piece is suitable for supporting elastic lip. Through above structure makes guide rail groove and elastic sealing strip as a whole, forms integral type guide rail, can simplify the structure, has reduced the complicated degree of manufacturing process, has reduced the problem that car window glass, elastic sealing strip and guide rail groove assembly accuracy is poor, can avoid the sealing failure of elastic lip, and can improve the positioning accuracy to car window glass simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, specifically to a lower guide rail for a car window and a vehicle. Background Technology

[0002] Vehicle windows are typically power windows, and a guide rail structure is required on the door to guide the movement of the window glass. Currently, the existing lower guide rails for vehicle windows on the market are all split structures, with the guide rail and the sealing strip being independent components that need to be assembled together and installed at the mounting position on the door. However, the structure of the lower guide rail for vehicle windows is complex and the manufacturing process is complicated, and the assembly of the two has problems such as low matching accuracy and unstable positioning. Utility Model Content

[0003] This utility model provides a lower guide rail for vehicle window glass and a vehicle, to solve the problems of complex structure and complicated process of the lower guide rail for vehicle window glass in the prior art, and the low matching accuracy and unstable positioning of the two during assembly.

[0004] In a first aspect, this utility model provides a lower guide rail structure for a vehicle window, comprising: The main body includes the guide rail groove; The elastic sealing strip is provided. Two elastic sealing strips are respectively connected to the outer ends of the two inner walls of the guide rail groove. The elastic sealing strip includes an elastic lip and a support member. The elastic lip is adapted to bend into the guide rail groove with the outer end as the rotation center. One end of the support member is in contact with the inner wall of the guide rail groove, and the other end of the support member is adapted to support the elastic lip.

[0005] Optionally, the resilient sealing strip further includes a connecting edge, the connecting edge, the resilient lip, and the support member connecting to form a groove that covers and connects to the outer end.

[0006] Optionally, the outer side of the outer end is provided with a stepped groove, the stepped surface of the stepped groove is away from the elastic sealing strip, the connecting edge is embedded in the stepped groove, and the connecting edge is flush with the outer wall of the guide rail groove.

[0007] Optionally, the elastic lip has a contact area suitable for fitting against the window glass, and the contact area is provided with a first lubricating layer.

[0008] Optionally, the bottom surface inside the guide rail groove is provided with a flexible buffer strip, which is adapted to contact the outer edge of the vehicle window glass.

[0009] Optionally, the surface of the flexible buffer strip is provided with a second lubricating layer.

[0010] Optionally, the body further includes a limiting part, which is disposed at the end of the guide rail groove in the length direction and bends inward into the guide rail groove to form a limiting gap between the limiting part and the guide rail groove. The end of the elastic lip in the length direction is adapted to extend into the limiting gap.

[0011] Optionally, the body and the elastic sealing strip are integrally molded using a two-color injection molding process.

[0012] Optionally, the body is made of long glass fiber reinforced polypropylene material, and the elastic sealing strip is made of thermoplastic vulcanized rubber material.

[0013] Secondly, this utility model provides a vehicle including the aforementioned lower guide rail structure for vehicle window glass.

[0014] Beneficial effects: 1. The lower guide rail structure for vehicle window glass provided by this utility model includes: a body and an elastic sealing strip.

[0015] The main body includes the guide rail groove; The elastic sealing strip consists of two elastic sealing strips connected to the outer ends of the two inner walls of the guide rail groove respectively. The elastic sealing strip includes an elastic lip and a support. The elastic lip is adapted to bend into the guide rail groove with the outer end as the rotation center. One end of the support is in contact with the inner wall of the guide rail groove, and the other end of the support is adapted to support the elastic lip.

[0016] The above structure integrates the guide rail groove and the elastic sealing strip into a single unit, forming a one-piece guide rail that eliminates the need for assembly. The connection between the elastic sealing strip and the end of the guide rail groove simplifies the structure and reduces the complexity of the manufacturing process by eliminating the need for separate molding. In use, the elastic lip can be bent inwards into the guide rail groove, allowing the window glass to slide into the groove and engage with the elastic lip, effectively sealing the gap between the window glass and the guide rail groove. Because the guide rail groove and elastic sealing strip are integrated, issues related to poor assembly precision among the window glass, elastic sealing strip, and guide rail groove are reduced. Furthermore, the support component supports the elastic lip, preventing seal failure and improving the positioning accuracy of the window glass.

[0017] 2. The lower guide rail structure for vehicle window glass provided by this utility model includes a connecting edge for the elastic sealing strip. The connecting edge, the elastic lip, and the support member are connected to form a groove that covers and connects to the outer end. The groove can cover the outer end, thereby improving the connection strength between the elastic sealing strip and the guide rail groove, preventing breakage when the elastic lip bends inward, and improving the stability and reliability of the connection between the elastic sealing strip and the guide rail groove.

[0018] 3. The lower guide rail structure for vehicle windows provided by this utility model has a stepped groove on the outer side of its outer end. The stepped surface of the stepped groove faces away from the elastic sealing strip, and the connecting edge is embedded in the stepped groove, flush with the outer wall of the guide rail groove. Since the connecting edge bears a large tensile force when the elastic lip bends, this design further improves the connection strength between the connecting edge and the outer end, further preventing breakage when the elastic lip bends inward, and improving the stability and reliability of the connection between the elastic sealing strip and the guide rail groove. Furthermore, the flushness of the connecting edge with the outer wall of the guide rail groove makes the structure more compact, avoiding occupying installation space for other external components.

[0019] 4. The lower guide rail structure for vehicle window glass provided by this utility model has an elastic lip with a contact area suitable for fitting with the vehicle window glass, and a first lubricating layer is provided on the contact area. This arrangement can improve the smoothness of the sliding of the vehicle window glass relative to the elastic lip while ensuring sealing.

[0020] 5. The lower guide rail structure for vehicle window glass provided by this utility model has a flexible buffer strip on the bottom surface inside the guide rail groove. The flexible buffer strip is suitable for contacting the outer edge of the vehicle window glass. The flexible buffer strip can prevent the outer edge of the vehicle window glass from directly sliding and contacting the bottom surface inside the guide rail groove, thus avoiding wear on the outer edge of the vehicle window glass. At the same time, the flexible buffer strip can also improve the sealing between the vehicle window glass and the guide rail groove.

[0021] 6. The lower guide rail structure for vehicle window glass provided by this utility model has a second lubricating layer on the surface of the flexible buffer strip. Similarly, this design can improve the smoothness of the sliding of the vehicle window glass relative to the flexible buffer strip while ensuring sealing.

[0022] 7. The lower guide rail structure for vehicle window glass provided by this utility model also includes a limiting part. The limiting part is located at the end of the guide rail groove along its length direction, and the limiting part bends inward into the guide rail groove, forming a limiting gap between the limiting part and the guide rail groove. The end of the elastic lip along its length direction is adapted to extend into the limiting gap. After the elastic lip bends inward into the guide rail groove, the edge of the elastic lip away from the outer end is located at the center inside the guide rail groove. In order to facilitate the vehicle window glass entering the guide rail groove and extending between the two elastic lips, the end of the elastic lip along its length direction is extended into the limiting gap, so that a narrowed opening is formed between the ends of the two elastic lips along their length direction. This facilitates the insertion of the vehicle window glass and reduces the difficulty of assembly and alignment. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional structural diagram of the lower guide rail structure for the vehicle window glass according to an embodiment of the present utility model; Figure 2 for Figure 1 The diagram shows the state in which the elastic lip extends into the guide rail groove. Figure 3 This is a schematic diagram of the lower guide rail structure for the vehicle window glass according to an embodiment of the present utility model; Figure 4 This is an enlarged view of a portion of the upper part of the body along the length direction of this utility model embodiment; Figure 5 This is a partial enlarged view of the structure at the end of the body along the length direction of another embodiment of the present utility model; Figure 6 This is a schematic diagram showing the installation position of the lower guide rail structure for the vehicle window glass in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. Body; 101. First sidewall; 102. Second sidewall; 103. Bottom wall; 104. First mounting part; 105. Second mounting part; 106. Snap-fit ​​part; 11. Guide rail groove; 111. Outer end; 112. Limiting part; 2. Elastic sealing strip; 21. Elastic lip; 22. Support component; 23. Connecting edge; 31. First lubricating layer; 32. Second lubricating layer; 4. Flexible buffer strip; 5. Car window glass; 6. Vehicles. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] like Figure 1 and Figure 2 As shown, this embodiment provides a lower guide rail structure for a vehicle window, including: a body 1 and an elastic sealing strip 2.

[0028] Body 1 includes guide rail groove 11; The elastic sealing strip 2 is connected to the outer ends 111 of the two inner walls of the guide rail groove 11 respectively. The elastic sealing strip 2 includes an elastic lip 21 and a support member 22. The elastic lip 21 is adapted to bend into the guide rail groove 11 with the outer end 111 as the rotation center. One end of the support member 22 is in contact with the inner wall of the guide rail groove 11, and the other end of the support member 22 is adapted to support the elastic lip 21.

[0029] The above structure integrates the guide rail groove 11 and the elastic sealing strip 2 into a single unit, forming an integral guide rail that eliminates the need for assembly. The connection between the elastic sealing strip 2 and the ends of the guide rail groove 11 simplifies the structure and reduces the complexity of the manufacturing process by eliminating the need for separate molding. In use, the elastic lip 21 can be bent inwards into the guide rail groove 11, allowing the window glass 5 to extend into the guide rail groove 11 and slide against the elastic lip 21, sealing the gap between the window glass 5 and the guide rail groove 11. Because the guide rail groove 11 and the elastic sealing strip 2 are integrated, the problem of poor assembly precision among the window glass 5, the elastic sealing strip 2, and the guide rail groove 11 is reduced. Furthermore, the support member 22 supports the elastic lip 21, preventing sealing failure and improving the positioning accuracy of the window glass 5.

[0030] like Figure 1 As shown, in this embodiment, the body 1 includes a first sidewall 101, a second sidewall 102, and a bottom wall 103, all injection molded. The first sidewall 101, the second sidewall 102, and the bottom wall 103 together form a guide groove 11. The ends of the first sidewall 101 and the second sidewall 102 that are away from the bottom wall 103 are both outer end portions 111, and the elastic sealing strip 2 is injection molded on the outer end portion 111.

[0031] In this embodiment, the support member 22 is a convex edge, and the extending direction of the support member 22 is the same as the extending direction of the elastic lip 21. The edge of the support member 22 faces the interior of the guide rail groove 11.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, the elastic sealing strip 2 further includes a connecting edge 23. The connecting edge 23, the elastic lip 21, and the support member 22 are connected to form a groove that covers and connects to the outer end 111. The groove can cover the outer end 111, thereby improving the connection strength between the elastic sealing strip 2 and the guide rail groove 11, preventing breakage when the elastic lip 21 bends inward, and improving the stability and reliability of the connection between the elastic sealing strip 2 and the guide rail groove 11.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, a stepped groove is provided on the outer side of the outer end 111. The stepped surface of the stepped groove faces away from the elastic sealing strip 2. The connecting edge 23 is embedded in the stepped groove and is flush with the outer wall of the guide rail groove 11. Since the connecting edge 23 bears a large tensile force when the elastic lip 21 bends, this arrangement can further improve the connection strength between the connecting edge 23 and the outer end 111, further preventing breakage when the elastic lip 21 bends inward, and improving the stability and reliability of the connection between the elastic sealing strip 2 and the guide rail groove 11. In addition, the flushness of the connecting edge 23 with the outer wall of the guide rail groove 11 can make the structure more compact and avoid occupying the installation space of other external components.

[0034] It should be noted that the stepped groove can be formed during the injection molding of the body 1.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, the elastic sealing strip 2 is injection molded on the outer end 111. The elastic sealing strip 2 also includes a connecting part located between the elastic lip 21, the connecting edge 23 and the support member 22. The connecting part is provided with a recess facing the guide rail groove 11. The recess facilitates the bending of the elastic lip 21 into the guide rail groove 11.

[0036] like Figure 1 and Figure 2 As shown, in this embodiment, the elastic lip 21 has a contact area suitable for fitting against the vehicle window glass 5, and a first lubricating layer 31 is provided on the contact area. This arrangement can improve the smoothness of the sliding of the vehicle window glass 5 relative to the elastic lip 21 while ensuring sealing.

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, a flexible buffer strip 4 is provided on the bottom surface inside the guide rail groove 11. The flexible buffer strip 4 is suitable for contacting the outer edge of the window glass 5. The flexible buffer strip 4 can prevent the outer edge of the window glass 5 from directly sliding and contacting the bottom surface inside the guide rail groove 11, thus avoiding wear on the outer edge of the window glass 5. At the same time, the flexible buffer strip 4 can also improve the sealing between the window glass 5 and the guide rail groove 11.

[0038] In this embodiment, the flexible buffer strip 4 can also be injection molded inside the guide rail groove 11, that is, injection molded on the bottom wall 103 of the body 1.

[0039] like Figure 1 and Figure 2 As shown, in this embodiment, the surface of the flexible buffer strip 4 is provided with a second lubricating layer 32. Similarly, this arrangement can improve the smoothness of the sliding of the window glass 5 relative to the flexible buffer strip 4 while ensuring sealing.

[0040] In this embodiment, both the first lubricating layer 31 and the second lubricating layer 32 are flocked strips. The flocked strips can reduce the friction between the window glass 5 and the corresponding contact position. The flocked strips can also be molded together with the glass.

[0041] like Figure 3 As shown, in this embodiment, the body 1 has a certain length dimension, and the flexible seal has the same length dimension as the body 1. At least one mounting portion can be injection molded on the outer side of the body 1, through which the body 1 can be fixed to the vehicle door. For example, a first mounting portion 104 and a second mounting portion 105 of different sizes and positions can be provided as needed. In addition, a snap-fit ​​portion 106 can also be injection molded on the outer side of the body 1, and the snap-fit ​​portion 106 is provided with snap-fit ​​holes for fixing the vehicle wiring harness.

[0042] like Figure 3 , Figure 4 and Figure 5 As shown, in this embodiment, the body 1 also includes a limiting part 112, which is located at the end of the guide rail groove 11 along its length and bends inward into the guide rail groove 11, forming a limiting gap between the limiting part 112 and the guide rail groove 11. The end of the elastic lip 21 along its length is adapted to extend into the limiting gap. After the elastic lip 21 bends inward into the guide rail groove 11, the edge of the elastic lip 21 away from the outer end 111 is located at the center inside the guide rail groove 11. In order to facilitate the entry of the window glass 5 into the guide rail groove 11 and into the space between the two elastic lips 21, the end of the elastic lip 21 along its length is extended into the limiting gap, so that a narrowed opening is formed between the ends of the two elastic lips 21 along their length. This facilitates the insertion of the window glass 5 and reduces the difficulty of assembly and alignment.

[0043] It should be noted that, Figure 4 The image shows the assembly state of the elastic sealing strip 2, and... Figure 2 The elastic sealing strip 2 shown corresponds to, Figure 5 The image shows the molding state of the elastic sealing strip 2, and... Figure 1 Corresponding to the elastic sealing strip 2 shown, after the elastic sealing strip 2 is formed, the elastic lip 21 can be bent into the guide groove 11, and the end of the elastic lip 21 in the length direction can be pressed into the limiting gap to form a Y-shaped narrowing opening so that the car window glass 5 can be inserted.

[0044] In this embodiment, the limiting part 112 can also be injection molded onto the body 1. The limiting part 112 is a folded edge, which bends inward to guide the guide groove 11 and has a limiting gap with the inner wall of the guide groove 11. The support member 22 may not be provided at the position where the elastic sealing strip 2 mates with the limiting gap.

[0045] In this embodiment, the body 1 and the elastic sealing strip 2 are integrally molded using a two-color injection molding process. That is, the body 1 and the elastic sealing strip 2 are molded using a two-stage injection molding process.

[0046] In this embodiment, the body 1 is made of long glass fiber reinforced polypropylene material, such as PP LGF40, and the elastic sealing strip 2 is made of thermoplastic vulcanized rubber material, such as TPV material. Furthermore, the flexible buffer strip 4 can also be made of thermoplastic vulcanized rubber material.

[0047] like Figure 6 As shown, this embodiment provides a vehicle including the aforementioned lower guide rail structure for the vehicle window. Both the front and rear doors of the vehicle 6 require two lower guide rail structures for the vehicle window. The lower guide rail structure of the corresponding size can be set according to the structure of the door. Detailed examples will not be provided here.

[0048] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A lower guide rail structure for a vehicle window, characterized in that, include: The main body (1) includes a guide rail groove (11); The elastic sealing strip (2) is connected to the outer ends (111) of the two inner walls of the guide groove (11) respectively. The elastic sealing strip (2) includes an elastic lip (21) and a support member (22). The elastic lip (21) is adapted to bend into the guide groove (11) with the outer end (111) as the rotation center. One end of the support member (22) is in contact with the inner wall of the guide groove (11), and the other end of the support member (22) is adapted to support the elastic lip (21).

2. The lower guide rail structure for vehicle window glass according to claim 1, characterized in that, The elastic sealing strip (2) also includes a connecting edge (23), the connecting edge (23), the elastic lip (21) and the support (22) are connected to form a groove covering and connected to the outer end (111).

3. The lower guide rail structure for vehicle window glass according to claim 2, characterized in that, The outer end (111) is provided with a stepped groove on the outside, the stepped surface of the stepped groove is away from the elastic sealing strip (2), the connecting edge (23) is embedded in the stepped groove, and the connecting edge (23) is flush with the outer wall of the guide rail groove (11).

4. The lower guide rail structure for vehicle window glass according to any one of claims 1 to 3, characterized in that, The elastic lip (21) has a contact area suitable for fitting with the window glass (5), and a first lubricating layer (31) is provided on the contact area.

5. The lower guide rail structure for vehicle window glass according to any one of claims 1 to 3, characterized in that, The bottom surface inside the guide rail groove (11) is provided with a flexible buffer strip (4), which is suitable for contacting the outer edge of the window glass (5).

6. The lower guide rail structure for vehicle window glass according to claim 5, characterized in that, The surface of the flexible buffer strip (4) is provided with a second lubricating layer (32).

7. The lower guide rail structure for vehicle window glass according to any one of claims 1 to 3, characterized in that, The body (1) further includes a limiting part (112), which is located at the end of the guide rail groove (11) in the length direction and bends into the guide rail groove (11) to form a limiting gap between the limiting part (112) and the guide rail groove (11). The end of the elastic lip (21) in the length direction is adapted to extend into the limiting gap.

8. The lower guide rail structure for vehicle window glass according to claim 1, characterized in that, The main body (1) and the elastic sealing strip (2) are integrally molded using a two-color injection molding process.

9. The lower guide rail structure for vehicle window glass according to claim 1, characterized in that, The body (1) is made of long glass fiber reinforced polypropylene material, and the elastic sealing strip (2) is made of thermoplastic vulcanized rubber material.

10. A vehicle, characterized in that, The vehicle window glass lower guide rail structure includes any one of claims 1-9.