Corner structure of glass run and method for manufacturing said corner structure

Abstract

To provide a corner structure in which a glass run body and a seal part are difficult to separate from each other. [Solution] The corner structure (1) of a glass run attached to an automobile comprises a glass run body (2) attached around the door of the automobile, and a hollow seal part (3) for filling the gap between the front door and rear door of the automobile, or the gap between the rear door and the body, and the glass run body (2) and seal part (3) are integrally molded.

Description

[Technical Field]

[0001] The present disclosure relates to a corner structure of a glass run that is attached along a frame provided on an automobile door and guides the door glass into a groove as it moves up and down, and a method for manufacturing the corner structure. [Background technology]

[0002] Fig. 7 shows a left side view of the exterior of an automobile. As shown in Fig. 7, glass runs 20 are attached along the roof side frame RF and pillar side frame P of the front door F and rear door R of the automobile to guide the door glass 10 as it moves up and down.

[0003] Patent Document 1 discloses a groove structure for the rear of an automobile rear door. As shown in Figures 6 and 7 of Patent Document 1, the groove structure of Patent Document 1 connects a groove body 1 and a corner portion 2 via a mounting block 201 to facilitate assembly of the groove body 1 and the corner portion 2. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] China Utility Model Registration No. 216101488 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the groove structure of Patent Document 1, the groove body 1 (corresponding to the seal portion) and the corner portion 2 (corresponding to the glass run body) are connected via the mounting block 201, so the groove body 1 and the corner portion 2 are prone to coming off.

[0006] The present disclosure has been made in consideration of the above-mentioned problems, and aims to provide a corner structure of a glass run in which the glass run body and the seal portion are less likely to come apart, and a method for manufacturing the corner structure. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the corner portion structure of a glass run according to one embodiment of the present disclosure comprises a glass run main body that is attached around the door of an automobile, and a hollow sealing portion for filling the gap between the front door and rear door of the automobile, or the gap between the rear door and the body, and the glass run main body and the sealing portion are integrally molded.

[0008] In order to solve the above-mentioned problems, a manufacturing method for a corner structure of a glass run according to one embodiment of the present disclosure comprises extrusion molding a hollow seal portion for filling the gap between the front door and rear door of an automobile, or the gap between the rear door and the body, and incorporating the extruded seal portion into a mold for molding the corner structure of the glass run main body, thereby integrally molding the glass run main body and the seal portion. [Effects of the Invention]

[0009] According to one aspect of the present disclosure, a corner structure can be provided in which the glass run body and the seal portion are less likely to come off. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a perspective view showing the vehicle exterior side of the corner portion structure according to the present disclosure. [Figure 2] FIG. 2 is a perspective view showing the vehicle interior side of the corner portion structure according to the present disclosure. [Figure 3] 1 is a schematic diagram showing a state in which a core is attached to a glass run body and a seal portion. FIG. [Figure 4] 10 is a schematic diagram showing the removal of the core from the glass run body and the seal portion. FIG. [Figure 5] 1 is a flowchart illustrating a method for manufacturing a corner structure according to the present disclosure. [Figure 6] FIG. 10 is a diagram showing an example of a mold structure for integrally molding a glass run body and a seal portion. [Figure 7] 1 shows a left side view of the exterior of a vehicle. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, a corner structure 1 according to the present disclosure and a method for manufacturing the corner structure 1 will be described with reference to the drawings.

[0012] (Corner structure 1) Fig. 1 is a perspective view showing the vehicle exterior side of the corner portion structure 1 according to the present disclosure. Fig. 2 is a perspective view showing the vehicle interior side of the corner portion structure 1 according to the present disclosure. Figs. 1 and 2 show a glass run 20 attached along the front upper corner portion of a rear door R.

[0013] First, an overview of the corner structure 1 will be described. As explained in the conventional example with reference to FIG. 7, the corner structure 1 of the glass run is attached along the roof-side frame RF and pillar-side frame P of the front door F and rear door R of an automobile. The corner structure 1 includes a glass run main body 2 attached around the automobile door, and a hollow seal portion 3 for filling the parting between the front door and rear door of the automobile or the parting between the rear door and the body, and the glass run main body 2 and the seal portion 3 are integrally molded. In the black and white triangle shown in FIGS. 1 and 2, the black side is the glass run main body 2 and the white side is the seal portion 3. Next, the glass run main body 2 and the seal portion 3 will be described with reference to FIGS. 1 and 2.

[0014] (Glass Run main body 2) The glass run main body 2 is attached to the periphery of the automobile door and includes elongated bodies 21 and 22 that are attached along the roof side frame body RF and the pillar side frame body P. The elongated bodies 21 and 22 are generally extrusion molded and are integrated by molding to form the glass run main body 2. The glass run main body 2 has a core removal hole 2a at a position on the interior side of the automobile for removing a core 8 (described later) inserted into the seal portion 3. By providing the core removal hole 2a at a position on the interior side of the automobile, it is possible to prevent rainwater from entering through the core removal hole 2a and also maintain the external appearance (good looks) of the automobile.

[0015] The view indicated by reference numeral 200 in Figure 2 is an enlarged cross-sectional view of the portion of line AA shown in Figure 2. The glass run main body 2 is formed with a substantially U-shaped cross section in the region X where the core removal hole 2a is formed. The glass run main body 2 has the core removal hole 2a near the boundary between the glass run main body 2 and the seal portion 3. This makes it easy to remove the core 8 (described below) used when molding the seal portion 3 from the core removal hole 2a and the slit 3a.

[0016] The region X where the core hole 2a is formed is formed by molding, and is not particularly limited as long as it is made of an elastic material. For example, the region X where the core hole 2a is formed is molded from an elastic material such as a thermoplastic elastomer, such as an olefin-based thermoplastic elastomer (TPO) or a styrene-based thermoplastic elastomer (TPS), or various rubbers, such as ethylene-propylene-diene copolymer rubber (EPDM). Because the region X where the core hole 2a is formed requires a certain degree of rigidity, it is preferably molded from a non-foamed material, but it may also be molded from a micro-foamed material. The molded part that integrates the elongated bodies 21 and 22 described above may be molded from the same elastic material as the region X where the core hole 2a is formed, or it may be molded from a different elastic material. Furthermore, the molded part that integrates the elongated bodies 21 and 22 may mold the region X where the core hole 2a is formed continuously, or it may be a different molded part.

[0017] (Seal part 3) The sealing portion 3 is used to fill the gap between the front door and rear door of the automobile, or the gap between the rear door and the body. The sealing portion 3 is formed hollow, providing high adhesion, excellent sealing properties, and a good appearance. The sealing portion 3 has a slit 3a extending in the longitudinal direction of the sealing portion 3 at a position on the interior side of the automobile, and the slit 3a and the core hole 2a are connected. The longitudinal direction of the sealing portion 3 is the direction in which the sealing portion 3 extends, and may be understood as the direction along the pillar side frame body P of the automobile (approximately the vertical direction in the drawing).

[0018] The view indicated by reference numeral 201 in Figure 2 is an enlarged cross-sectional view of part B, which is the boundary between the glass run main body 2 and the seal portion 3. The seal portion 3 is formed with a substantially C-shaped cross section in the area where the slit 3a is formed. In this way, the seal portion 3 has an opening formed by cutting out a portion, and this opening continues along the longitudinal direction of the seal portion 3, thereby forming the slit 3a and connecting to the core removal hole 2a.

[0019] Although not limited thereto, the seal portion 3 may have a surface 3b in cross section, and a slit 3a may be formed in the center of the surface 3b. This configuration makes it easier to form the slit 3a in the seal portion 3, thereby increasing the yield of seal portions 3 having the slit 3a. This configuration also reduces the risk of damage to the seal portion 3 when the core 8 is removed from the slit 3a.

[0020] The view indicated by reference numeral 202 in Figure 2 is an enlarged cross-sectional view of the CC line portion shown in Figure 2. In this position, the seal portion 3 does not have the slit 3a, and therefore does not have the opening described above.

[0021] The longitudinal length and the width in the fore-and-aft direction of the automobile of the core hole 2a and the slit 3a may be determined appropriately depending on the longitudinal length of the core 8, which will be described later with reference to Figures 3 and 4.

[0022] The cross-sectional shapes of the glass run body 2 and the seal portion 3 have been described with reference to the drawings indicated by reference numerals 200 to 202 in Fig. 2. These shapes are also shown as examples, and may be determined appropriately depending on the design of the automobile, etc.

[0023] The seal portion 3 is obtained by extrusion molding and is not particularly limited as long as it is made of an elastic material. For example, the seal portion 3 is molded from an elastic material such as a thermoplastic elastomer such as an olefin-based thermoplastic elastomer (TPO) or a styrene-based thermoplastic elastomer (TPS), or various rubbers such as ethylene-propylene-diene copolymer rubber (EPDM). The seal portion 3 may be molded from a foam material, a micro-foam material, or a non-foam material.

[0024] The glass run main body 2 and the seal portion 3 are integrally molded to prevent the glass run main body 2 and the seal portion 3 from coming off easily, which will be described later with reference to FIG.

[0025] (middle core 8) Next, FIG. 3 is a schematic diagram showing the state in which the core 8 is attached to the glass run body 2 and the seal portion 3. As shown in FIG.

[0026] The core 8 is used when integrally molding the glass run main body 2 and the seal portion 3. The view indicated by reference number 300 in FIG. 3 is an enlarged cross-sectional view of the portion indicated by line DD in FIG. 3. A portion of the core 8 is exposed to the outside of the glass run main body 2 through the core removal hole 2a. The view indicated by reference number 301 in FIG. 3 is an enlarged cross-sectional view of the portion indicated by line EE in FIG. 3. The outer shape of the core 8 corresponds to the inner shape of the seal portion 3. Here, when the bottom side of the drawing is defined as "bottom," the core 8 is removed from the slit 3a, and therefore, although not limited thereto, the bottom surface of the core 8 is located higher than the lower end of the seal portion 3.

[0027] Next, FIG. 4 is a schematic diagram showing how the core 8 is removed from the glass run main body 2 and the seal portion 3. The view indicated by reference numeral 400 in FIG. 4 is an enlarged cross-sectional view of the portion indicated by line DD in FIG. 4. The view indicated by reference numeral 401 in FIG. 4 is an enlarged cross-sectional view of the portion indicated by line EE in FIG. 4. As shown in the figure, the core 8 is removed to the outside of the glass run main body 2 and the seal portion 3. At this time, the core 8 is removed to the outside of the glass run main body 2 and the seal portion 3 through the core removal hole 2a and the slit 3a, which reduces the risk of damage to the glass run main body 2 and the seal portion 3 when removing the core 8. This makes it easier to automate the removal of the core 8 without damaging the glass run main body 2 and the seal portion 3.

[0028] (Method of manufacturing corner structure 1) Next, a method for manufacturing the corner portion structure 1 will be described with reference to Fig. 5. Fig. 5 is a flowchart showing the method for manufacturing the corner portion structure 1.

[0029] First, a hollow seal portion 3 for filling the parting between the front door and rear door of an automobile, or the parting between the rear door and the body, is formed by extrusion molding (S10). Next, the extruded seal portion 3 is incorporated into a mold for molding the region X in which the core hole 2a of the glass run main body 2 is formed, and the glass run main body 2 and the seal portion 3 are integrally molded (S20). At this time, if the extruded elongated bodies 21 and 22 are also to be integrated at the same time, the elongated bodies 21 and 22 are also incorporated into the mold.

[0030] Fig. 6 is a diagram showing an example of a mold structure for integrally molding the region X in which the core hole 2a of the glass run main body 2 is formed and the seal portion 3. In the example shown in Fig. 6, molds 9a, 9b, 9c, and 9d are used to integrally mold the region X in which the core hole 2a of the glass run main body 2 is formed and the seal portion 3. The diagram indicated by reference number 600 in Fig. 6 is a cross-sectional view showing the portion along line DD in Fig. 4 together with the mold. The diagram indicated by reference number 601 in Fig. 6 is a cross-sectional view showing the portion along line EE in Fig. 4 together with the mold.

[0031] The molds may be automatically disassembled when demolding. For example, mold 9a is first removed upward. Next, mold 9b is removed downward. Then, the core 8 is removed from each of the glass run main body 2 and the seal portion 3, and then molds 9c and 9d are removed. Alternatively, molds 9c and 9d may be removed first, and then the core 8 is removed from each of the glass run main body 2 and the seal portion 3.

[0032] As described above, the glass run body 2 and the seal portion 3 are integrally molded, making it possible to manufacture a corner structure 1 in which the glass run body 2 and the seal portion 3 are unlikely to come apart. Also, because the glass run body 2 and the seal portion 3 are connected by molding, the corner structure 1 can be manufactured in a single molding operation, improving productivity. Furthermore, because the number of parts can be reduced, storage and transportation are also easier.

[0033] The integral molding of the glass run body 2 and the seal portion 3 can be applied to the areas between the front roof and the B-pillar, between the rear roof and the B-pillar, and between the rear leaf and the C-pillar, and the various effects described above can be obtained in each of these areas.

[0034] (summary) The corner structure of a glass run according to aspect 1 of the present disclosure is a corner structure of a glass run attached to an automobile, and comprises a glass run main body attached to the door periphery of the automobile, and a hollow sealing portion for filling the gap between the front door and rear door of the automobile, or the gap between the rear door and the body, and the glass run main body and the sealing portion are integrally molded.

[0035] According to the above configuration, the corner portion structure of the glass run according to the first aspect of the present disclosure can make it difficult for the glass run body and the seal portion to come off.

[0036] Furthermore, according to the above configuration, the corner structure of the glass run according to the first aspect of the present disclosure has a hollow seal portion (partition seal portion), which provides high adhesion, excellent sealing properties, and a good appearance.

[0037] The corner structure of the glass run according to aspect 2 of the present disclosure is such that, in aspect 1, the glass run body has a core removal hole at a position on the inside of the automobile for removing the core inserted into the seal portion.

[0038] If the core hole is located on the exterior side of the vehicle, problems arise such as rainwater seeping in through the core hole and the appearance of the vehicle being marred. In this regard, in the corner portion structure of the glass run according to aspect 2 of the present disclosure, the core hole is located on the interior side of the vehicle, so rainwater does not seep in through the core hole and the appearance of the vehicle can be maintained.

[0039] The corner portion structure of the glass run according to aspect 3 of the present disclosure is such that, in aspect 2, the sealing portion has a slit extending in the longitudinal direction of the sealing portion at a position on the inside of the automobile, and the slit is connected to the core hole.

[0040] According to the above configuration, the corner structure of the glass run according to the third aspect of the present disclosure allows the core to be pulled out through the core removal hole and the slit. As a result, the corner structure of the glass run according to the third aspect of the present disclosure is less likely to be damaged when the core is pulled out, and the core pulling out process can be automated. Another advantage of the sealing portion having the above configuration is that it is easy to mass-produce.

[0041] The manufacturing method of the corner structure of a glass run according to aspect 4 of the present disclosure is a manufacturing method of the corner structure of a glass run attached to an automobile, in which a hollow sealing portion for filling the parting between the front door and rear door of the automobile or the parting between the rear door and the body is formed by extrusion molding, and the extruded sealing portion is incorporated into a mold for forming the corner structure of the glass run main body, thereby integrally molding the glass run main body and the sealing portion.

[0042] According to the above configuration, the manufacturing method for the corner portion structure of the glass run according to the fourth aspect of the present disclosure can manufacture the corner portion structure of the glass run according to the first aspect of the present disclosure.

[0043] (Additional notes) The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present disclosure. [Explanation of symbols]

[0044] 1 Corner structure 2 Glass Run body 2a Core hole 3 Seal part 3a Slit 8 Core 9a, 9b, 9c, 9d molds 20 Graslin F front door R rear door RF roof side frame P-pillar side frame

Claims

1. A corner structure of a glass run attached to an automobile, A glass run body that is attached around the door of a car, a hollow seal portion for filling a gap between a front door and a rear door of the automobile or a gap between the rear door and a body of the automobile, A corner portion structure of a glass run, in which the glass run body and the sealing portion are integrally molded.

2. 2. The corner structure of a glass run according to claim 1, wherein the glass run body has a core removal hole at a position on the inside of the automobile for removing a core inserted into the seal portion.

3. the sealing portion has a slit extending in a longitudinal direction of the sealing portion at a position on the interior side of the automobile, The corner structure of a glass run according to claim 2 , wherein the slit and the core hole are connected.

4. A method for manufacturing a corner structure of a glass run attached to an automobile, a hollow seal portion for filling a boundary portion between a front door and a rear door of the automobile or a boundary portion between the rear door and a body of the automobile is formed by extrusion molding; A method for manufacturing a corner structure of a glass run, comprising incorporating the extruded sealing portion into a mold for molding the corner structure of the glass run body, thereby integrally molding the glass run body and the sealing portion.

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