Corner structure of a glass guide and method for producing a corner structure

The one-piece integration of the glass guide body and sealing part using extrusion forming addresses the separation issue, providing enhanced sealing and appearance in motor vehicle doors.

DE102025130253A1Pending Publication Date: 2026-03-05NISHIKAWA RUBBER CO LTD
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Patent Information

Application Number
DE102025130253
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-29
Filing Date
2025-07-31
Publication Date
2026-03-05

AI Technical Summary

Technical Problem

The existing groove structure in motor vehicle doors allows the glass guide body and sealing part to be easily separated, compromising the integrity and appearance of the vehicle.

Method used

A corner structure is designed with a glass guide body and a hollow sealing part formed in one piece, using extrusion forming to integrate them, with a core removal hole positioned inside the vehicle to prevent separation and enhance sealing performance.

Benefits of technology

The integrated design prevents separation of the glass guide body and sealing part, ensuring high contact tightness, superior sealing, and maintaining the vehicle's attractive appearance while allowing easy core removal without damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

A corner structure is to be provided that allows a glass guide body and a sealing part to be difficult to separate. A corner structure (1) of a glass guide, designed to be attached to a motor vehicle, comprises: a glass guide body (2) designed to be attached to an edge of a door of the motor vehicle; and a hollow sealing part (3) designed to fill a partition section present between a front door and a rear door of the motor vehicle, or a partition section present between the rear door and a vehicle body of the motor vehicle. The glass guide body (2) and the sealing part (3) are formed in one piece.
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Description

Technical field

[0001] The present disclosure relates to a corner structure of a glass guide, which is arranged to be fitted along a frame body provided in a door of a motor vehicle to guide a door glass moving up and down to the groove, and also relates to a method for manufacturing the corner structure. background

[0002] Fig. Figure 7 is a side view of a motor vehicle, illustrating its appearance from the left side. As in Fig. Figure 7 illustrates that a glass guide 20 is attached along a roof-side frame body RF and a column-side frame body P of each of a front door F and a rear door R of the motor vehicle to guide a door glass 10 which moves up and down.

[0003] Chinese utility model no. 216101488 discloses a groove structure for a rear section of a motor vehicle's rear door. As shown in Fig. 6 and Fig. As illustrated in Figure 7 of the utility model, the groove structure connects a groove body 1 and a corner part 2 using a mounting block 201 to facilitate the assembly of the groove body 1 and the corner part 2. Summary Technical Problem

[0004] However, since the groove structure of CN 216101488 has a structure in which the groove body 1 (which corresponds to a sealing part) and the corner section 2 (which corresponds to a glass guide body) are connected to the mounting block 201, the groove body 1 and the corner section 2 can be easily separated from each other.

[0005] The present disclosure was made with regard to this problem, and one objective of it is to provide a corner structure of a glass guide and a method for manufacturing the corner structure, wherein the corner structure enables a glass guide body and a sealing part to be difficult to separate from each other. Solution to the task

[0006] To solve the problem, a corner structure of a glass guide according to one aspect of the present disclosure comprises: a glass guide body arranged to be attached to an edge of a door of a motor vehicle; and a hollow sealing part arranged to fill a partition section present between a front door and a rear door of the motor vehicle, or a partition section present between the rear door and a vehicle body of the motor vehicle, wherein the glass guide body and the sealing part are formed in one piece.

[0007] To solve the problem, a method for manufacturing a corner structure of a glass guide according to one aspect of the present disclosure comprises: forming, by extrusion forming, a hollow sealing part configured to fill a partition section present between a front door and a rear door of a motor vehicle, or a partition section present between the rear door and a vehicle body of the motor vehicle; and placing the sealing part formed by extrusion forming into a forming tool for forming the corner structure of a glass guide body in order to form the glass guide body and the sealing part in one piece. Advantageous effects of the invention

[0008] According to one aspect of the present disclosure, it is possible to provide a corner structure that allows the glass guide body and the sealing part to be difficult to separate. Brief description of the drawings Fig. Figure 1 is a perspective view of a vehicle exterior of a corner structure according to the present disclosure. Fig. Figure 2 is a perspective view of the interior of a vehicle, specifically the corner structure, as disclosed herein. Fig. Figure 3 is a schematic diagram illustrating how a core is mounted in a glass guide body and a sealing part. Fig. Figure 4 is a schematic diagram illustrating how the core is separated from the glass guide body and the sealing part. Fig. Figure 5 is a flowchart of a process for producing the corner structure according to the present disclosure. Fig. Figure 6 is a diagram illustrating an example of the mold structure for the one-piece molding of the glass guide body and the sealing part. Fig. Figure 7 is a side view of a motor vehicle, illustrating its appearance on the left side. Description of embodiments

[0009] In the following, a corner structure 1 according to the present disclosure and a method for producing the corner structure 1 are described with reference to the drawings. (Corner structure 1)

[0010] Fig. Figure 1 is a perspective view of the exterior of a vehicle of the corner structure 1 according to the present disclosure. Fig. Figure 2 is a perspective view of the interior of a vehicle of the corner structure 1 according to the present disclosure. Fig. 1 and Fig. 2 represent a glass guide 20 which is designed to be fitted along an upper front corner of a rear door R.

[0011] First, an outline of corner structure 1 is described. As in the conventional example above, with reference to Fig. As described in Figure 7, the corner structure 1 of the glass guide is attached along a roof-side frame body RF and a column-side frame body P, respectively, to a front door F and a rear door R of a motor vehicle. The corner structure 1 comprises: a glass guide body 2, which is configured to be attached to an edge of a door of the motor vehicle; and a hollow sealing part 3, which is configured to fill a partition that exists between a front door and a rear door of the motor vehicle, or a partition that exists between the rear door and a vehicle body of the motor vehicle. The glass guide body 2 and the sealing part 3 are formed in one piece. Fig. 1 and Fig. Figure 2 indicates a black-and-white bicolor triangle, where the black side is the glass guide body 2 and the white side is the sealing part 3. Next, the glass guide body 2 and the sealing part 3 are described with reference to... Fig. 1 and Fig. 2 described. (Glass guide body 2)

[0012] The glass guide body 2 is designed to be mounted on an edge of a vehicle door and comprises an elongated body 21 and an elongated body 22, respectively, mounted along the roof-side frame body RF and the pillar-side frame body P. The elongated body 21 and the elongated body 22 are generally formed by extrusions integrated by molds using a molding tool and form the glass guide body 2. The glass guide body 2 has a core removal hole 2a, designed to be positioned on an interior side of the vehicle, and designed to allow the removal of a core 8 (described later) inserted into the sealing part 3.Since the core removal hole 2a is designed in a position that is to be arranged on the inside of the motor vehicle, it is possible to prevent rainwater from flowing in through the core removal hole 2a, and it is also possible to maintain the appearance (attractive appearance) of the motor vehicle.

[0013] A diagram with the reference symbol 200 in Fig. 2 is an enlarged cross-sectional view along line AA, which is in Fig. Figure 2 illustrates this. In the area X where the core removal hole 2a is formed, the glass guide body 2 is configured to have a substantially U-shaped cross-section. The glass guide body 2 has the core removal hole 2a near the boundary between the glass guide body 2 and the sealing part 3. This allows the core 8 (described later), which is used during the formation of the sealing part 3, to be easily removed from the core removal hole 2a and the slot 3a.

[0014] The area X, in which the core removal hole 2a is formed, only needs to be formed by molding using a molding tool and an elastic material. For example, the area X, in which the core removal hole 2a is formed, can be made of an elastic material, which may be thermoplastic elastomers, such as thermoplastic olefin elastomer (TPO) and thermoplastic styrene elastomer (TPS), or various rubbers, such as ethylene propylene diene monomer (EPDM) copolymer rubber. Since it is required that the area X, in which the core removal hole 2a is formed, has a certain degree of stiffness, it is preferred that the core removal hole 2a be made of a non-foamed material, but it can also be made of a low-foamed material.It should be noted that the aforementioned forming can be carried out using a forming tool to integrate the elongated body 21 and the elongated body 22, either using an elastic material that is the same as that used for region X, in which the core removal hole 2a is formed, or using a different elastic material. Furthermore, the formed section created by forming using a forming tool to integrate the elongated body 21 and the elongated body 22 can continuously form region X, in which the core removal hole 2a is formed, or alternatively, it can be a separate, differently formed body. (Sealing part 3)

[0015] The sealing element 3 is intended for use in filling a separation section located between a front door and a rear door of the motor vehicle, or a separation section located between a rear door and the vehicle body. Since the sealing element 3 is formed in a hollow shape, it provides high contact tightness, superior sealing performance, and an attractive appearance. The sealing element 3 has a slot 3a extending longitudinally at a position to be located on the interior of the motor vehicle, and the slot 3a and the core removal hole 2a are connected.The longitudinal direction of the sealing part 3 is a direction in which the sealing part 3 extends, and it is understood that the longitudinal direction is a direction in which the column-side frame body P of the motor vehicle extends (essentially a vertical direction in the drawing).

[0016] A diagram with reference number 201 in Fig. Figure 2 is an enlarged cross-sectional view of section B, which serves as the boundary between the glass guide body 2 and the sealing part 3. The sealing part 3 is configured to have a substantially C-shaped cross-section in the area where the slot 3a is formed. Thus, the sealing part 3 has an opening whose edge is partially cut away. This opening extends continuously in the longitudinal direction of the sealing part 3 to form the slot 3a, which is connected to the core removal hole 2a.

[0017] The sealing part 3 can have a surface 3b in a cross-sectional view, and the slot 3a can be formed in a central section of the surface 3b, but this is not limited to this. This design makes it easy to form the slot 3a in the sealing part 3, thus making it possible to increase the compliance of the sealing part 3 that has the slot 3a. Furthermore, this design makes it possible to reduce the risk of damage to the sealing part 3 that could occur when removing the core 8 from the slot 3a.

[0018] A diagram with reference number 202 in Fig. Figure 2 is an enlarged cross-sectional view along line CC, which is shown in Fig. Figure 2 illustrates this. In this position, the sealing part 3 does not have the slot 3a and therefore does not have the opening mentioned above.

[0019] Each of the core removal hole 2a and the slot 3a can have a longitudinal length and a width in the front-to-rear direction of the motor vehicle, which are appropriately determined depending on the longitudinal length of the core 8, as will be described later with reference to Fig. 3 and Fig. 4 is described.

[0020] The cross-sectional shapes of the glass guide body 2 and the sealing part 3 are shown with reference to the diagrams with reference numbers 200 to 202 in Fig. 2 described. These forms are merely examples and can be determined in a suitable manner depending on the design or similar aspects of the motor vehicle.

[0021] Sealing element 3 only needs to be formed by extrusion using an elastic material. For example, sealing element 3 can be made of an elastic material that is a thermoplastic elastomer, such as a thermoplastic olefin elastomer (TPO) or a thermoplastic styrene elastomer (TPS), or various rubbers, such as ethylene propylene diene monomer (EPDM) copolymer rubber. Sealing element 3 can be made of a foamed material, or alternatively, a low-foamed or non-foamed material.

[0022] The glass guide body 2 and the sealing part 3 are formed in one piece (materially bonded) to make them difficult to separate. This will be explained later with reference to Fig. 5 described. (Core 8)

[0023] Next, it concerns Fig. 3 a schematic diagram illustrating how the core 8 is mounted in the glass guide body 2 and the sealing part 3.

[0024] Core 8 is intended for use in the one-piece forming of the glass guide body 2 and the sealing part 3. A diagram with reference numeral 300 in Fig. Figure 3 is an enlarged cross-sectional view along line DD, which is in Fig. Figure 3 illustrates this. The core 8 protrudes partially from the core removal hole 2a to the outer surface of the glass guide body 2. A diagram with reference numeral 301 in Fig. Figure 3 is an enlarged cross-sectional view along line EE, which is in Fig. Figure 3 illustrates this. The outer shape of the core 8 corresponds to the inner shape of the sealing part 3. Here, the bottom side of the drawing is assumed to be defined as the "bottom". The bottom surface of the core 8 may be positioned higher than the bottom end of the sealing part 3, since the core 8 is designed to be pulled out of the slot 3a, but this is not the only possible configuration.

[0025] Next concerns Fig. Figure 4 is a schematic diagram illustrating how the core 8 is separated from the glass guide body 2 and the sealing part 3. A diagram with reference numeral 400 in Fig. Figure 4 is an enlarged cross-sectional view along line DD, which is shown in Fig. Figure 4 illustrates this. A diagram with reference number 401 in Fig. Figure 4 is an enlarged cross-sectional view along line EE, which is in Fig. Figure 4 illustrates this. As illustrated, the core 8 is removed from the outside of the glass guide body 2 and the sealing part 3. At this point, the core 8 is removed from the outside of the glass guide body 2 and the sealing part 3 through the core removal hole 2a and the slot 3a, thus reducing the risk of damage to the glass guide body 2 and the sealing part 3 that could occur during removal. This facilitates the automation of the core 8 removal process, which can be carried out without damaging the glass guide body 2 and the sealing part 3. (Method for producing the corner structure 1)

[0026] Next, a method for manufacturing corner structure 1 will be described with reference to Fig. 5 described. Fig. Figure 5 is a flowchart of the process for producing corner structure 1.

[0027] First, a hollow sealing part 3, designed to fill a partition between a front door and a rear door of the motor vehicle, or a partition between the rear door and a vehicle body, is formed by extrusion (S10). Next, the sealing part 3 formed by extrusion is placed in a mold for forming the area X in which a core removal hole 2a of a glass guide body 2 is formed, in order to form the glass guide body 2 and the sealing part 3 in one piece (S20). If, at this point, the elongated bodies 21 and 22 formed by extrusion are also integrated simultaneously, they can also be placed in the mold.

[0028] Fig. Figure 6 is a diagram illustrating an example of the mold structure for the one-piece molding of the sealing part 3 and the area X in which the core removal hole 2a of the glass guide body 2 is formed. In the Fig. In the illustrated example 6, forming tools 9a, 9b, 9c and 9d are used to form the sealing part 3 and the area X in which the core removal hole 2a of the glass guide body 2 is formed in one piece. A diagram with reference numeral 600 in Fig. Figure 6 is a cross-sectional view along line DD, which is in Fig. Figure 4 illustrates the forming tools. A diagram with reference numeral 601 in Fig. Figure 6 is a cross-sectional view along line EE, which is in Fig. Figure 4 illustrates the forming tools.

[0029] Mold disassembly during demolding can be performed automatically. For example, mold tool 9a is removed upwards first. Next, mold tool 9b is removed downwards. Then, core 8 is removed from both the glass guide body 2 and the sealing part 3, and then mold tools 9c and 9d are removed. Alternatively, mold tools 9c and 9d can be removed before core 8 is removed from both the glass guide body 2 and the sealing part 3.

[0030] As described above, the glass guide body 2 and the sealing part 3 are formed in one piece, making it possible to produce the corner structure 1, which ensures that the glass guide body 2 and the sealing part 3 are difficult to separate. Furthermore, since the glass guide body 2 and the sealing part 3 are joined together by forming using a mold, it is possible to produce the corner structure 1 in a single molding process, leading to increased productivity. Moreover, since the number of parts can be reduced, storage, transport, and the like are also simplified.

[0031] The one-piece forming of the glass guide body 2 and the sealing part 3 can be specified for a section between the front roof and the B-pillar, a section between the rear roof and the B-pillar and a section between the rear roof and the C-pillar, so that it is possible to achieve various advantageous effects described herein on these sections. (Summary)

[0032] A corner structure of a glass guide according to aspect 1 of the present disclosure is a corner structure of a glass guide which is arranged to be attached to a motor vehicle, wherein the structure comprises: a glass guide body which is arranged to be attached to an edge (and / or a perimeter) of a door of the motor vehicle (and / or is arranged to surround the door of the motor vehicle); and a hollow sealing part which is arranged to fill a partition section which is present between a front door and a rear door of the motor vehicle, or a partition section which is present between the rear door and a vehicle body of the motor vehicle, wherein the glass guide body and the sealing part are formed in one piece.

[0033] With this design, the corner structure of the glass guide according to aspect 1 of the present disclosure can make it difficult to separate the glass guide body and the sealing part from each other.

[0034] Furthermore, according to this embodiment, the corner structure of the glass guide, as described in aspect 1 of the present disclosure, features a hollow sealing element (separating sealing element). This makes it possible to provide high contact tightness, superior sealing performance, and an attractive appearance.

[0035] The corner structure of the glass guide according to aspect 2 of the present disclosure has an embodiment in aspect 1 above in which the glass guide body has a core removal hole which is arranged to be positioned on an inside of the motor vehicle, wherein the core removal hole is arranged to allow the removal of a core which is inserted into the sealing part.

[0036] If the core removal hole were positioned on the exterior of the vehicle, problems could arise, such as rainwater entering through the hole and deteriorating the vehicle's attractive appearance. However, it is possible to prevent rainwater from entering through the core removal hole and to maintain the vehicle's attractive appearance because, according to aspect 2 of this disclosure, the corner structure of the glass guide incorporates the core removal hole positioned on the interior of the vehicle.

[0037] The corner structure of the glass guide according to aspect 3 of the present disclosure has an embodiment in aspect 2 above in which the sealing part has a slot which is arranged to be positioned on an inside of the motor vehicle, wherein the slot extends in a longitudinal direction of the sealing part, and the slot and the core removal hole are connected.

[0038] With this embodiment, it is possible to provide the corner structure of the glass guide according to aspect 3 of the present disclosure, which allows the core to be pulled out through the core removal hole and the slot. Thus, it is possible to provide the corner structure of the glass guide according to aspect 3 of the present disclosure, which can reduce the risk of damage that could occur when the core is pulled out; this also allows the core pulling process to be automated. Furthermore, the sealing element having this embodiment can also have the advantage of being easy to mass-produce.

[0039] A method for manufacturing a corner structure of a glass guide according to aspect 4 of the present disclosure is a method for manufacturing a corner structure of a glass guide, which is configured to be fitted to a motor vehicle, comprising: forming, by extrusion forming, a hollow sealing part configured to fill a partition section present between a front door and a rear door of the motor vehicle, or a partition section present between the rear door and a vehicle body of the motor vehicle; and placing the sealing part formed by extrusion forming into a forming tool for forming the corner structure of a glass guide body, in order to form the glass guide body and the sealing part in one piece.

[0040] With this embodiment, the method for producing the corner structure of the glass guide according to aspect 4 of the present disclosure can produce the corner structure of the glass guide according to aspect 1 of the present disclosure. (Additional comments)

[0041] The present disclosure is not limited to the embodiments mentioned above, but can be modified in various ways within the scope of the claims. The present disclosure, in its technical scope, also encompasses any embodiment derived by suitable combination of technical means disclosed in different embodiments. Reference symbol list 1 Corner structure 2 glass guide bodies 2a Core removal hole 3 Sealing part 3a slot 8 cores 9a, 9b, 9c, 9d Forming tool 20 Glass guide F Front door R rear door RF roof-side frame body P Column-side frame body QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 216101488

[0004]

Claims

[1] Corner structure of a glass guide designed to be attached to a motor vehicle, the structure comprising: - a glass guide body designed to be attached to an edge of a motor vehicle door; and - a hollow sealing part designed to fill a separating section that exists between a front door and a rear door of the motor vehicle, or a separating section that exists between the rear door and a vehicle body of the motor vehicle, - wherein the glass guide body and the sealing part are formed in one piece. [2] Corner structure of the glass guide according to claim 1, wherein the glass guide body has a core removal hole which is configured to be positioned on an interior side of the motor vehicle, wherein the core removal hole is configured to allow the removal of a core which is inserted into the sealing part. [3] Corner structure of the glass guide according to claim 2, wherein - the sealing part has a slot which is designed to be positioned on an interior surface of the motor vehicle, the slot extending in a longitudinal direction of the sealing part, and - the slot and the core removal hole are connected. [4] Method for manufacturing a corner structure of a glass guide designed to be attached to a motor vehicle, the method comprising: - Forming, by extrusion molding, a hollow sealing part designed to fill a separating section present between a front door and a rear door of the motor vehicle, or a separating section present between the rear door and a vehicle body of the motor vehicle; and - Placing the sealing part formed by extrusion molding into a molding tool for forming the corner structure of a glass guide body, in order to form the glass guide body and the sealing part in one piece.

Citation Information

Patent Citations

  • Rear trough structure of rear door and window of automobile

    CN216101488U