Glass run, glass run mounting structure and glass run manufacturing method

The glass run design addresses the issue of unattractive complementary portions by folding the decorative film from exterior to interior, using a harder base material and cuts, enhancing appearance and adhesion while maintaining a neat finish.

JP7736529B2Active Publication Date: 2025-09-09NISHIKAWA RUBBER CO LTD
View PDF 7 Cites 0 Cited by

Patent Information

Application Number
JP2021185791
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-01-20
Filing Date
2021-11-15
Publication Date
2025-09-09
Estimated Expiration
2041-11-15

AI Technical Summary

Technical Problem

Conventional glass runs on automobile doors with decorative films exhibit unattractive appearance due to exposed complementary portions and creases at the ends of extension portions when the doors are closed, disrupting the continuity of the decorative film.

Method used

The glass run is designed with an extension portion covered by a decorative film folded from the exterior to the interior, using a harder base material to support the film, and incorporating a cut and fold process to conceal the end surface, with optional insert panels for enhanced stability and adhesion.

Benefits of technology

The solution enhances the continuity of the decorative film appearance between doors, reduces visible black streaks, and provides a neat finish while being cost-effective and lightweight, with improved adhesion and stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007736529000001
    Figure 0007736529000001
  • Figure 0007736529000002
    Figure 0007736529000002
  • Figure 0007736529000003
    Figure 0007736529000003
Patent Text Reader

Abstract

To enhance continuity of a decorative film provided on a vehicle outer side, and improve appearance.SOLUTION: A glass run 50 has a mounting part 51 mounted on frame bodies 3 and 4 of doors 1 and 2 of an automobile, and a body part 52 for guiding door glass G moving up and down to a groove part, where a vehicle outer side of the mounting part 51 is used as an extension part 53 extending to a side separated from the doors 1 and 2 from upper side part ends of the doors 1 and 2, and a decorative film F is provided, wherein the decorative film F is provided on the extension part 53 through a substrate material 90 of a hard resin harder than a material constituting the extension part 53, is bent to an vehicle inner side from the vehicle outer side together with the substrate material 90, and is provided so as to cover the mounting part 51 of the extension part 53 or an end face 53c of the body part 52. In an upper end F1 and a lower end F2 of the decorative film F, the decorative film side is notched from the end faces 53a and 73a of the extension parts 53 and 73 by constant distances FL1 and FL2, and widths FW1 and FW2 of residual parts in a vertical direction are set to be small.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to a glass run that is provided on an automobile door and has an extension portion on the exterior side of the vehicle that is covered with a decorative film, a mounting structure for the glass run, and a manufacturing method for the glass run. [Background technology]

[0002] Conventionally, as shown in Figures 11 and 12, a structure has been known in which glass runs 10, 20 with decorative films F are attached to the frames 3, 4 of automobile doors 1, 2 (front door 1, rear door 2) (see, for example, Patent Document 1). Note that in Figure 12, the molded portions are indicated by diagonal lines.

[0003] In the glass run 10 attached to the front door 1, the decorative film F is provided on the exterior surface of the decorative lip 12 provided on the exterior side of the attachment portion 11 of the glass run 10, and particularly at the upper corner portion of the front door 1, the decorative lip 12 is formed to extend further rearward from the rear end of the upper edge, and the decorative film F is also provided continuously on the exterior surface of the extension portion 13. Similarly, in the glass run 20 attached to the rear door 2, the decorative film F is provided on the exterior surface of the decorative lip 22 provided on the exterior side of the attachment portion of the glass run 20, and particularly in the upper corner portion of the rear door 2, the decorative lip 22 is formed to extend further forward from the front end of the upper edge, and the decorative film F is also provided continuously on the exterior surface of the extension portion 23. At the parting portion between the front door 1 and the rear door 2, the glass runs 10, 20 are attached so that the extensions 13, 23 of the glass runs 10, 20 face each other.

[0004] This is said to provide a sense of continuity in the sash molding between the front door 1 and the rear door 2, improving the appearance.

[0005] However, the cross-sectional shape of the extension portions 13, 23 of the glass runs 10, 20 is as shown in Figure 13, and after the decorative film F is extruded together with the extrusion molding material, the end faces 13a, 23a of the extension portions 13, 23 are shaped by the molding material. Here, the end Fa of the decorative film F is also set at the same position as the end faces 13a, 23a of the extension portions 13, 23. Note that in Fig. 13, the decorative film F is painted black for ease of drawing, but in actual products, the decorative film F is generally set in a color other than black. Therefore, the opposing ends of the extended end surface glass runs 10, 20 have the black complementary portions 14, 24 exposed, so when the front door 1 and rear door 2 are closed and the doors 1, 2 are viewed from the outside, two black lines caused by the complementary portions 14, 24 appear between the front door 1 and the rear door 2, which creates an unattractive appearance.

[0006] On the other hand, instead of providing the complementary portions 14, 24, there is also known a method in which a cap (not shown) is fitted onto the end face of the extension portion of the glass run (see, for example, Patent Document 2). However, in this case too, a crease forms between the cap and the mating surface, which disrupts the continuity of the decorative film F and results in an unattractive appearance. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 8-300953 [Patent Document 2] Japanese Patent Application Publication No. 2019-112010 Summary of the Invention [Problem to be solved by the invention]

[0008] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a glass run, a mounting structure for the glass run, and a method for manufacturing the glass run that improve the appearance by increasing the continuity of the decorative film provided on the exterior of the vehicle. [Means for solving the problem]

[0009] In order to achieve the above object, the glass run of the present invention has an attachment portion (51, 71) attached to a frame (3, 4) of a door (1, 2) of an automobile, and a main body portion (52, 72) for guiding a door glass (G) that moves up and down into a groove portion, and the attachment portion (51, 71) on the vehicle outer side is an extension portion (53, 73) that extends from an end of an upper edge portion of the door (1, 2) toward a side away from the door (1, 2), and the glass run (50, 70) is provided with a decorative film (F), The decorative film (F) is folded at the end of the extension portion (53, 73) from the vehicle exterior side to the vehicle interior side of the extension portion (53, 73) so as to cover the end surface (53c, 73c) of the extension portion (53, 73). It is established, Moreover, the decorative film (F) is provided on the extension portion (53, 73) via a base material (90) made of a hard resin harder than the material constituting the extension portion (53, 73), and the end portion of the extension portion (53, 73) is folded together with the base material (90) from the outside to the inside of the vehicle, and is provided so as to cover the end surface (53c, 73c) of the extension portion (53, 73). It is characterized by:

[0013] The present invention is also characterized in that an insert panel (91) is embedded between the bent base material (90) and the end faces (53c, 73c) of the extension portions (53, 73).

[0014] Furthermore, the glass run mounting structure of the present invention is characterized in that the glass runs (50, 70) are mounted on the front door (1) and the rear door (2), respectively, and the extension portion (53) of the glass run (50) on the front door (1) side extends rearward from the rear end of the upper edge portion of the front door (1), and the extension portion (73) of the glass run (70) on the rear door (2) side extends forward from the front end of the upper edge portion of the rear door (2), with the extension portions (53, 73) facing each other at the parting portion between the front door (1) and the rear door (2).

[0015] In addition, the manufacturing method of the glass run of the present invention includes a mounting portion (51, 71) to be attached to a frame (3, 4) of a door (1, 2) of an automobile, and a main body portion (52, 72) for guiding a door glass (G) that moves up and down into a groove portion, and the vehicle exterior side of the mounting portion (51, 71) is an extension portion (53, 73) that extends from an end of an upper edge portion of the door (1, 2) to a side away from the door (1, 2), and a decorative film (F) is provided, the decorative film (F) is provided on the extension portion (53, 73) via a base material (90) made of a hard resin harder than a material constituting the extension portion (53, 73), and the decorative film (F) is folded at an end of the extension portion (53, 73) together with the base material (90) from the vehicle exterior side to the vehicle interior side, and is provided so as to cover an end surface (53 c, ​​73 c) of the extension portion (53, 73), The extension portion (53, 73) is characterized in that after the decorative film (F) and the base material (90) are extrusion-molded together, a cut (M1) is made in the decorative film (F) parallel to a certain distance (L) from the end face (53a, 73a) of the extension portion (53, 73), and a cut (M2) is made a certain distance (J) from the inside of the vehicle toward the outside of the vehicle, thereby cutting out a part of the extension portion (53, 73), and after removing the cut-out portion (K), the remaining portion (Z) is folded toward the inside of the vehicle at an arbitrary position, and then molded to cover and conceal the end face (Za) of the folded remaining portion (Z).

[0016] The present invention also provides a door glass (G) for a vehicle, comprising: a mounting portion (51, 71) attached to a frame (3, 4) of a door (1, 2); and a main body portion (52, 72) for guiding a door glass (G) that moves up and down into a groove, the vehicle exterior side of the mounting portion (51, 71) being an extension portion (53, 73) extending from an end of an upper edge of the door (1, 2) toward a side away from the door (1, 2), and a decorative film (F) being provided thereon; the decorative film (F) is provided on the extension portion (53, 73) via a base material (90) made of a hard resin harder than a material constituting the extension portion (53, 73), and the decorative film (F) is folded at an end of the extension portion (53, 73) together with the base material (90) from the vehicle exterior side to the vehicle interior side, and is provided so as to cover an end surface (53 c, ​​73 c) of the extension portion (53, 73), The extension portion (53, 73) is characterized in that after the decorative film (F) and the base material (90) are extrusion-molded together, a cut (M1) is made in the decorative film (F) parallel to a certain distance (L) from the end face (53a, 73a) of the extension portion (53, 73), and a cut (M2) is made a certain distance (J) from the inside of the vehicle toward the outside of the vehicle, thereby cutting out a part of the extension portion (53, 73), and after removing the cutout portion (K), the remaining portion (Z) is folded toward the inside of the vehicle by a folding distance (S = LT) obtained by subtracting the non-folding distance (T) from the certain distance (L), and then the end face (Za) of the folded remaining portion (Z) is covered and molded.

[0017] The present invention also provides a door glass (G) for a vehicle, comprising: a mounting portion (51, 71) attached to a frame (3, 4) of a door (1, 2); and a main body portion (52, 72) for guiding a door glass (G) that moves up and down into a groove, the vehicle exterior side of the mounting portion (51, 71) being an extension portion (53, 73) extending from an end of an upper edge of the door (1, 2) toward a side away from the door (1, 2), and a decorative film (F) being provided thereon; the decorative film (F) is provided on the extension portion (53, 73) via a base material (90) made of a hard resin harder than a material constituting the extension portion (53, 73), and the decorative film (F) is folded at an end of the extension portion (53, 73) together with the base material (90) from the vehicle exterior side to the vehicle interior side, and is provided so as to cover an end surface (53 c, ​​73 c) of the extension portion (53, 73), The upper end (F1) and the lower end (F2) of the decorative film (F) are each inclined or arc-shaped from the vehicle exterior side to the vehicle interior side, Regarding the extension portion (53, 73), after the decorative film (F) and the base material (90) are extrusion-molded together, a cut (M1) is made in the decorative film (F) parallel to the end face (53a, 73a) of the extension portion (53, 73) by a certain distance (L), and a cut (M2) is made in the decorative film (F) by a certain distance (J) from the inside of the vehicle toward the outside of the vehicle, thereby cutting out a part of the extension portion (53, 73), and after removing the cutout portion (K), The upper end (F1) and the lower end (F2) of the decorative film (F) are also cut out (FK1, FK2) on the decorative film side by a certain distance (FL1, FL2) from the end face (53a, 73a) of the extension portion (53, 73), thereby reducing the width (FW1, FW2) of the remaining portion in the vertical direction, The remaining portions (FZ1, FZ2) remaining after removing the notched portions (FK1, FK2) on the decorative film (F) are folded toward the inside of the vehicle by a folding distance (S), and then molded to cover and conceal the end faces (FZ1a, FZ2a) of the folded remaining portions (FZ1, FZ2).

[0018] Furthermore, the present invention is characterized in that the opposite side of the end face (53a, 73a) of the extension portion (53, 73) of the decorative film (F) side notch portion (FK1, FK2) of the upper end portion (F1) and the lower end portion (F2) of the decorative film (F) is chamfered (FK1a, FK2a) so as to curve the corner portion.

[0019] It should be noted that symbols in parentheses indicate corresponding elements or matters described in the drawings and in the detailed description to be described later. [Effects of the Invention]

[0020] According to the present invention, the decorative film provided on the exterior side of the extension of the glass run is folded from the exterior side to the interior side at the end of the extension, so that the decorative film is exposed on the surface. In particular, the product according to the present invention can be manufactured at lower cost and is lighter than products equipped with metal moldings.

[0021] As a result, when the extensions of the glass runs attached to the front door and the rear door are opposed to each other at the parting portion of the front door and the rear door, the continuity between the decorative film provided on the front door side and the decorative film provided on the rear door side is increased, resulting in a better appearance. That is, unlike the conventional example (FIG. 13), two black streaks caused by the complementary portion formed from the mold-forming material at the end of the extension portion do not appear. In addition, in automobiles, the part of the center pillar facing the front door and rear door is located at a height close to eye level, making it more noticeable than other parts, further enhancing the effect of the present invention.

[0023] Furthermore, according to the present invention, the decorative film is provided on the extension portion via a base material made of a hard resin that is harder than the material constituting the extension portion, so the decorative film is stably supported by the base material. Therefore, even though the decorative film itself is thin, it can be easily folded from the exterior side of the vehicle to the interior side of the vehicle at the end of the extension portion, and can be provided to cover the end face of the extension portion.

[0024] In addition, according to the present invention, an insert panel is embedded between the folded base material and the end face of the extension portion, so that the base material with the decorative film can be easily supported and fixed within the mold when it is shaped with molding material.

[0025] Furthermore, according to the present invention, when manufacturing a glass run, the decorative film and base material are both extruded together, and then a cut (M1) is made in the decorative film parallel to the end face of the extended portion a certain distance (L) from the end face of the extended portion, and a cut (M2) is made a certain distance (J) from the inside of the vehicle toward the outside of the vehicle, thereby cutting out a part of the extended portion, removing the cutout portion (K), and then bending the remaining part (Z) toward the inside of the vehicle at any position.As a result, the extended portion, decorative film, and base material become integrated, thereby improving adhesion compared to when separate decorative film and base material are attached to the end of the extended portion after extrusion molding. Furthermore, according to the present invention, the remaining portion (Z) is bent toward the inside of the vehicle by a bending distance (S=LT) obtained by subtracting the non-bending distance (T) from the fixed distance (L), and then molded to cover and conceal the end face (Za) of the bent remaining portion (Z). Therefore, even if there is variation in the shape of the cutout portion, the mold molding material fills in the gap and allows for a neat finish.

[0026] In addition, according to the present invention, the upper and lower ends of the decorative film are each inclined or arc-shaped from the outside to the inside of the vehicle, and after cutting out a portion of the extended portion, the upper and lower ends of the decorative film are also cut out on the decorative film side by a certain distance (FL1, FL2) from the end face of the extended portion, reducing the width of the remaining portion in the vertical direction, and after removing the cut-out portion on the decorative film side, the remaining portion is folded toward the inside of the vehicle by a folding distance (S), and then molded to cover and conceal the end face of the folded remaining portion, thereby preventing sharp edges or wrinkles from occurring at the folding position of the decorative film when the remaining portion is folded from the outside to the inside of the vehicle. In addition, the opposite sides of the end faces of the extended portions of the cutouts at the upper and lower ends of the decorative film are chamfered to curve the corners, thereby further preventing the occurrence of sharp edges and wrinkles. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 is a perspective view showing a main part of a glass run according to an embodiment of the present invention. [Figure 2] 2 is an enlarged cross-sectional view of the line BB in FIG. 1, showing the glass run according to the embodiment of the present invention. FIG. [Figure 3] 2 is an enlarged cross-sectional view of the CC wire extrusion molded member of FIG. 1, showing a main part of the glass run according to the embodiment of the present invention. FIG. [Figure 4] 2 is an enlarged cross-sectional view taken along line DD in FIG. 1, showing a main part of the glass run according to the embodiment of the present invention. FIG. [Figure 5] 1 is an enlarged cross-sectional view showing a main part of a mounting structure for a glass run according to an embodiment of the present invention. [Figure 6]FIG. 2 is an enlarged cross-sectional view showing a main part of a manufacturing process of a glass run according to an embodiment of the present invention. [Figure 7] 10 is an enlarged cross-sectional view showing a main part of another glass run mounting structure according to an embodiment of the present invention. FIG. [Figure 8] 1. FIG. 4 is an enlarged cross-sectional view taken along line DD in FIG. 1, showing a main part of yet another glass run according to an embodiment of the present invention. [Figure 9] 1. FIG. 4 is an enlarged cross-sectional view taken along line DD in FIG. 1, showing a main part of still another glass run according to an embodiment of the present invention. [Figure 10] 1 is a side view of an automobile door according to an embodiment of the present invention. [Figure 11] FIG. 1 is a side view of a conventional automobile door. [Figure 12] FIG. 10 is a perspective view showing a main part of a conventional glass run mounting structure. [Figure 13] FIG. 13 is an enlarged cross-sectional view taken along the line AA in FIG. 12. [Figure 14] FIG. 10 is a side view showing a state in which a sharp portion is generated during the manufacturing process of the glass run according to the embodiment of the present invention. [Figure 15] FIG. 10 is a side view showing another manufacturing process of the glass run according to the embodiment of the present invention. [Figure 16] 16 is a side view showing a step subsequent to that shown in FIG. 15 in another manufacturing process for the glass run according to the embodiment of the present invention. FIG. [Figure 17] 17 is a side view showing another manufacturing process for the glass run according to the embodiment of the present invention, the process following that of FIG. 16. FIG. [Figure 18] 16 is a side view showing a manufacturing process different from that shown in FIG. 15 for the glass run according to the embodiment of the present invention. FIG. [Figure 19] FIG. 10 is an enlarged cross-sectional view showing a main part of yet another manufacturing process of the glass run according to the embodiment of the present invention. [Figure 20] 4 is a view showing a main part of an enlarged cross-sectional view of an extrusion molding member different from that of FIG. 3 of a glass run according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0028] A glass run according to an embodiment of the present invention will be described with reference to Figures 1 to 6 and 10. The same parts as those shown in the conventional example are designated by the same reference numerals. In Figure 1, the molded part is indicated by diagonal lines. In Figures 1 to 6, the decorative film F is indicated by black paint. As shown in Figures 1, 2, 3 and 10, the glass run 50 according to an embodiment of the present invention is of a hidden type that is attached to a flange 3A extending outside the vehicle on the frame body 3 of an automobile door, in this case the front door 1, so as to cover and conceal the frame body 3 from outside the vehicle. The glass run 50 is made up of two extrusion molded parts, one on the roof side and one on the center pillar side (not shown), connected via a molded part Mo at the corner portion on the rear end side of the upper edge of the front door 1, and has an attachment part 51 that is attached to the flange 3A and a main body part 52 that guides the rising and falling door glass G into the groove part. The vehicle exterior side of the mounting portion 51 is an extension portion 53 that extends from the rear end of the upper edge of the front door 1 to the side away from the front door 1, i.e., toward the rear of the vehicle when the front door 1 is closed, and a decorative film (here, a glitter film) F is provided on the vehicle exterior side of the extension portion 53 via a base material 90. Here, on the center pillar side, garnishes 81, 82 are attached to the vehicle exterior sides of the front door 1 and rear door 2, respectively.

[0029] 2, the mounting portion 51 has a generally U-shaped cross section and is made up of an upper wall portion 55 extending in the vehicle interior / exterior direction, a lower wall portion 56, and a connecting wall portion 57 connecting the upper wall portion 55 and the lower wall portion 56. On the inside, a locking portion 58 that elastically contacts the flange 3A is formed. Here, three lip-shaped locking portions 58 are formed on the lower part of the upper wall portion 55, and two protrusion-shaped locking portions 58 are formed on the upper part of the lower wall portion 56. A body seal lip portion 59 protrudes from the upper surface of the approximate center of the upper wall portion 55, elastically contacting the periphery of the vehicle body opening (not shown) to seal between the body and the front door 1. A seal lip portion 60 extends downward toward the interior of the vehicle and elastically contacts the flange 3A, and a lip portion 61 extends upward toward the exterior of the vehicle, protruding from the interior end of the upper wall portion 55. A cover lip portion 62 protrudes from the exterior upper surface of the upper wall portion 55, contacting and covering the upper surface of the decorative film F attached to the exterior side of the glass run 50. A core material 63 having an approximately U-shaped cross section is embedded along the upper wall portion 55, connecting wall portion 57, and lower wall portion 56 to increase rigidity.

[0030] The main body 52 is made up of the above-mentioned lower wall 56, which guides the rising and falling door glass G into the groove, an interior side wall 64 provided downward from the interior side and the exterior side of the lower wall 56, and an exterior side wall 65. The exterior side wall 65 is provided continuous with the connecting wall 57. When the front door 1 is closed, the combined portion of the exterior side wall 65 and the connecting wall 57 extends toward the rear of the vehicle to form the extension 53 (shown in FIG. 10 ). An inner lip 66 is provided on the outer surface of the end of the interior side wall 64, extending toward the exterior of the vehicle and making sliding contact with the interior surface of the door glass G, and an outer lip 67 is provided on the inner surface of the end of the exterior side wall 65, extending toward the interior of the vehicle and making sliding contact with the exterior surface of the door glass G. Also, a glass seal lip 68 is provided below the lower wall 56, protruding and making elastic contact with the end of the door glass G, but this can be omitted.

[0031] As shown in Figure 3, the mounting portion 51 and main body portion 52 of the extension portion 53 have an extruded cross-sectional shape obtained by cutting out and removing the interior side wall portion 64, inner lip portion 66, outer lip portion 67, and glass seal lip 68 from the extruded cross-sectional shape on the roof side of the glass run 50 shown in Figure 2. Although details are omitted, the shape of a portion of the auxiliary portion 54 described later may be connected and integrated with the attachment portion 51 or the main body portion 52 by molding.

[0032] Although details will be omitted, a glass run 70 having the same configuration as the glass run 50 attached to the front door 1 is also attached to the rear door 2. On the front door 1 side, the extension portion 53 of the glass run 50 extends rearward, that is, away from the rear end of the upper edge of the front door 1, while on the rear door 2 side, the extension portion 73 of the glass run 70 extends forward, that is, away from the front end of the upper edge of the rear door 2, and the glass runs 50, 70 are attached to the frames 3, 4 of the front door 1 and the rear door 2, respectively, so that the extension portions 53, 73 face each other at the parting portion between the front door 1 and the rear door 2.

[0033] The glass runs 50 and 70 are made of a material such as rubber (EPDM) or a thermoplastic elastomer (TPE) such as TPO or TPS, and may be made of sponge or solid material. In this example, the glass runs are made of solid TPE. In addition, the base material 90 is made of a hard resin that is harder than the material that constitutes the extension portions 53, 73 of the glass runs 50, 70, and has a thickness of 2 mm or less (preferably 1 mm or less) and a flexural modulus that is higher than the flexural modulus of the glass runs 50, 70, in the range of 850 to 4500 MPa. The material of the base material 90 is, for example, a material in which talc or glass fiber is mixed into polypropylene. The amount of talc or glass fiber mixed can be adjusted to fall within the above-mentioned range of flexural modulus. The material of the base material 90 is not particularly limited as long as it has a flexural modulus within the above-mentioned range, and materials other than those listed above may also be used.

[0034] 2 and 3, the upper end F1 and lower end F2 of the decorative film F are folded so as to be inclined or arc-shaped from the exterior side to the interior side of the vehicle (it is also possible to form the upper end F1 and lower end F2 of the decorative film F in a shape that extends straight up and down without any particular folding). Also, apart from Fig. 3, as shown in Fig. 20, the upper end F1 and lower end F2 of the decorative film F may be folded in an arc-shaped shape, and a portion of both ends of the decorative film F may be covered with extrusion molding material. As shown in FIGS. 4 and 5, the ends of the extensions 53, 73 are bent at right angles together with the base material 90 from the vehicle exterior side to the vehicle interior side, and are provided to cover the end faces 53c, 73c of the extensions 53, 73. The spaces between the folded base material 90 with the decorative film F and the end faces 53c, 73c formed by the notches in the extensions 53, 73 are filled with filling parts 54, 74 made of molding material. Here, in Figure 4, the core N used during molding using a metal mold is also shown to make it easier to understand the positional relationship.

[0035] The decorative film F may be a thin film or film material having a pressure sensitive adhesive or adhesive layer on the back side of a design layer. Examples include thin stainless steel films, metallized films, synthetic resin laminated films, films having decorative patterns on the surface, and films colored in desired colors. The adhesive layer or bonding layer may be any layer that has adhesiveness or bonding properties to the base material 90, and may have a primer layer interposed between it and the base material 90.

[0036] As described above, the glass runs 50, 70 are formed by extrusion molding two parts on the roof side and the center pillar side, and are connected via molded parts Mo at the corners on the rear end side of the upper edge of the front door 1 and the corners on the front end side of the upper edge of the rear door 2, respectively.The manufacturing method of the extension parts 53, 73 extending from these parts will be described with reference to Figure 6.

[0037] First, the mounting portions 51, 71 and the main body portions 52, 72 are extrusion molded together with the base material 90 and the decorative film F (FIG. 6(a)). Then, a cutting tool such as a cutter or rotary blade is used to cut out only a portion of the extensions 53, 73 by a certain distance (L) from the end so that at least the decorative film F and the base material 90 remain (FIG. 6(b)). More specifically, first, in Figure 6(a), an incision M1 is made from the end 53a, 73a of the extension portion 53, 73 parallel to the decorative film F for a certain distance (L), and an incision M2 is made from the inside of the vehicle toward the outside of the vehicle for a certain distance (J). Next, as shown in FIG. 6(b), the notch K, which is a part of the extensions 53 and 73, can be easily removed by the incisions M1 and M2. Here, the notch M1 forms side surfaces 53b and 73b in the extension portion 53, and the notch M2 forms end surfaces 53c and 73c in the extension portion 53. The notch M1 and the notch M2 may be made in either order, or simultaneously, but it is preferable to make the notch M1 first. The notch M1 may be made so that only the decorative film F and the base material 90 remain. However, as shown in FIG. 3 , if the thickness of the base material 90 is thin or if the boundary between the base material 90 and the connecting wall portion 57 or the vehicle-exterior side wall portion 65 is curved rather than linear, the notch M1 may be made so that a portion of the connecting wall portion 57 or the vehicle-exterior side wall portion 65 of the extension portion 53 remains together with the base material 90. Although the decorative film F itself is thin, the ends 53a, 73a of the extensions 53, 73 are stably supported by the base material 90, so that it is easy to cut out only a portion of the extensions 53, 73.

[0038] Then, as shown in Figures 6(b), (c), and (d), the remaining portion (Z) consisting of the decorative film F and the base material 90 remaining after removing the cutout portion K from the extension portion 53, 73 is folded toward the inside of the vehicle by a folding distance (S = LT) obtained by subtracting the non-folding distance (T) from a certain distance (L) (folding distance (S)). Since the decorative film F is stably supported by the base material 90, even a thin decorative film F can be easily folded together with the base material 90 from the outside to the inside of the vehicle. At this time, the decorative film F and the base material 90 are folded toward the vehicle interior at a point P located on the underside of the base material 90 at a bending distance (S) from the end surface 90a of the base material 90 as the center. 6(c), a notch M3 is made in the base material 90 from the side surface 53b created by the notch upward and outward to point P, and as shown in FIG. 6(d), the notch M3 is closed when folded, but the notch M3 may be linear instead of being a triangular recess, or may not be provided at all. Also, the remaining portion (Z) consisting of the decorative film F and the base material 90 remaining after the notch K is removed from the extension portion 53, 73 may be folded toward the vehicle interior at any position of the remaining portion (Z).

[0039] In addition, instead of the cut M3, a rectangular recess M4 may be made with a blade or a hot plate, as shown in Figure 19(a), or a rectangular recess M5 may be made by removing even a portion of the base material 90 with a blade or a hot plate, as shown in Figure 19(b), or a rectangular recess M6 may be made by removing the base material 90 with a blade or the like so that the non-bending distance is 0, as shown in Figure 19(c).

[0040] Then, as shown in Figures 5 and 6, a range (R) capable of covering and concealing the end (Za) of the folded decorative film F and the remaining part of the base material 90, and the end faces 53c, 73c created by the notch of the mounting parts 51, 71 or main body parts 52, 72 of the extension parts 53, 73, is molded to form the complementary parts 54, 74 with mold molding material. According to this, even if there is variation in the shape of the notched portion K, the molding material fills in the gaps, allowing for a neat finish. Here, the correcting portions 54, 74 are formed so as to be flush with the surface of the folded decorative film F, and when the automobile doors 1, 2 are viewed from outside the vehicle, the black correcting portions 54, 74 are not visible.

[0041] According to the glass run 50, 70 configured in this manner, the decorative film F provided on the outside of the vehicle of the extension portion 53, 73 of the glass run 50, 70 is folded at the end of the extension portion 53, 73 from the outside of the vehicle to the inside of the vehicle, and is provided so as to cover the end faces 53c, 57c of the extension portion 53, 73, so that the decorative film F is exposed on the surface. This increases the continuity between the decorative film F provided on the front door 1 side and the decorative film F provided on the rear door 2 side at the parting portion between the front door 1 and the rear door 2 side, improving the external appearance.

[0042] Furthermore, the decorative film F in particular can be manufactured at low cost with a similar appearance to products fitted with metal moldings, and is also lightweight.

[0043] In this embodiment, as shown in Figures 5 and 6, at least the decorative film F and the base material 90 are folded at a right angle from the outside to the inside of the vehicle. However, as shown in Figure 7, the decorative film F and the base material 90 may be folded at an angle more acute than a right angle, i.e., folded forward on the front door 1 side and folded backward on the rear door 2 side, and then a range (R) that can cover and conceal the remaining folded portion and the end faces 53c, 73c created by the notches of the extension portions 53, 73 that have not been notched (remaining after notching) may be molded to form a complementary shape. At this time, the complementary portions 54, 74 are not flush with the surface of the decorative film F, but the folded decorative film F and the base material 90 are sandwiched between the mold forming material, so that the adhesion with the mold forming material is increased and the adhesive strength is improved.

[0044] In addition, in this embodiment, the molding material is poured into the range (R) that can cover and conceal the end faces 53c, 73c created by the folded decorative film F, the base material 90, and the notches in the extended portions 53, 73. However, as shown in Figure 8, an insert panel 91 with a rectangular cross section can be inserted between these, and the molding material can be poured into the range (R) that can cover and conceal the end faces (Za) of the remaining folded portion, the end faces 53c, 73c created by the notches in the extended portions 53, 73, and the insert panel 91. Here, prior to molding using a mold, the insert panel 91 may be adhered and integrated to the end portions 53c, 73c generated by the notches in the extension portions 53, 73 or the bent portion of the remaining portion (Z) of the base material 90, as necessary. At this time, the folded decorative film F and base material 90 can be sandwiched between the insert panel 91, and the complementary portions 54, 74 can be formed with the molding material to cover the decorative film F and base material 90 from the outside.

[0045] According to this, the mold is formed within an area that can cover and conceal the insert panel 91, the folded decorative film F, and the lower end of the base material 90 after the insert panel 91 is inserted, so that the base material 90 with the decorative film F can be easily supported and fixed in the mold (not shown) used for molding, and the shape accuracy of the molded part can also be improved. Furthermore, although not shown, the area of ​​the insert panel 91 may be set smaller than the area of ​​the folded decorative film F and the folded part of the base material 90, thereby increasing the adhesive area between the base material 90 and the complementary parts 54, 74 and further improving the adhesive strength. Furthermore, instead of using the insert panel 91 shown in FIG. 8, the complementary portions 54, 74 may be molded by directly supporting them with a center core N of the mold, as shown in FIG.

[0046] In addition, in this embodiment, as shown in Figure 6(b), after removing the cutout portion K, which is a part of the extension portion 53, 73, using the cutout M1 and the cutout M2, the remaining portion (Z) is folded toward the inside of the vehicle by a folding distance (S = LT) obtained by subtracting the non-bending distance (T) from a certain distance (L).However, after removing the cutout portion K, as shown in Figure 15, the upper end portion F1 and the lower end portion F2 of the decorative film F may be removed using the decorative film F side cutout portion FK1, and then the remaining portion (FZ1) may be folded toward the inside of the vehicle.

[0047] This is because the upper end F1 and lower end F2 of the decorative film F each have an extruded cross-sectional shape that is bent so as to slope or arc from the outside to the inside of the vehicle, and if the remaining portion (Z) of the extended portion 53, 73 is bent from the outside to the inside of the vehicle, the difference in circumferential length will leave nowhere for the material to go on the inside of the bend, which may result in sharp points V or wrinkles, as shown in Figure 14, and this is to prevent this.

[0048] Therefore, as shown in Fig. 6(b), after cutting out (K) a portion of the extensions 53, 73, the upper end F1 and the lower end F2 of the decorative film F are also cut out a certain distance FL1 from the end faces 53a, 73a of the extensions 53, 73 on the decorative film side, as shown in Fig. 15, to reduce the width FW1 of the remaining portion in the vertical direction. The cutout FK1 on the decorative film side at this time is shown by diagonal lines in Fig. 15. Then, when the remaining portion (FZ1) of the extension portion 53, 73 is bent from the outside of the vehicle toward the inside of the vehicle along the bending line X1 shown by the dotted line in Figure 15, it becomes as shown in Figure 16, and when the complementary portion 54, 74 is further formed using the molding material, it becomes as shown in Figure 17. Although the bending line X1 is inclined forward as it goes from top to bottom, it may be changed to suit the design of the vehicle. For example, in the case of a glass run attached to the upper rear end of a front door or a glass run attached to the upper front end of a rear door, it may be inclined in the same direction as in Figure 15. Also, it may be possible to prevent the tilt in accordance with the design of the car. As shown in FIG. 6(c), a triangular recess or a linear cut M3 may be formed in the base material 90 from the point P toward the upper outside, or may not be formed. Moreover, instead of the cut M3 shown in FIG. 6, the cut M4, cut M5, and cut M6 shown in FIGS. 19(a), 19(b), and 19(c) may be set.

[0049] Furthermore, as shown in Figure 15, when cutting out the decorative film F side cutout portion FK1, the opposite side of the end faces 53a, 73a of the extension portions 53, 73 of the decorative film F side cutout portion FK1 is chamfered FK1a to curve the corner portion, thereby further preventing the occurrence of sharp portions V and wrinkles. In addition, the starting position of the chamfer FK1a may be near the point where the cutout FK1 on the decorative film F side intersects with the bending line X1, or the starting position of the chamfer FK1a may be from the point where the cutout FK1 on the decorative film F side intersects with the bending line X1. In addition, by bending the remaining portion (FZ1) of the extension portion 53, 73, in order to minimize the notch when forming the decorative film F side notch portion FK1 in the portion that opens, it is also possible to perform shaping by thermal compression molding. Moreover, instead of the decorative film side cutout FK1 shown in FIG. 15, a decorative film side cutout FK2 shown in FIG. 18 may be provided. 15 and 18, it is preferable to set the bending lines X1 and X2 near the end of the radius of the chamfers FK1a and FK2a. The more linear the bending lines X1 and X2 are beyond the end of the radius, the larger the black molding material portions 54 and 74 that fill the chamfers FK1a and FK2a will be visible from the outside of the vehicle, which is undesirable because it detracts from the vehicle's appearance. Conversely, the closer the bending lines X1 and X2 are to the end of the radius, the greater the overlapping of the material when the glass run is bent, resulting in larger sharp Vs and wrinkles, which is undesirable because it detracts from the appearance of the glass run.

[0050] Furthermore, compared to the decorative film F-side cutout FK1, the decorative film F-side cutout FK2 is inclined so that the positions of the upper and lower ends approach the center as they approach the end face of the decorative film, the width FW2 of the remaining portion of the decorative film in the vertical direction is set to be smaller than FW1, and the fixed cutout distance FL2 is set to be smaller than FL1, and on the side opposite the end faces 53a, 73a of the extensions 53, 73 of the decorative film F-side cutout FK2, a chamfer FK2a is formed to curve the corner, and the chamfer FK2a is set to be smaller than the chamfer FK1a. By configuring the decorative film F-side cutout FK2 in this way, the chamfer FK2a is set to be smaller than the chamfer FK1a. In addition, the starting position of the chamfer FK2a may be near the point where the cutout FK2 on the decorative film F side intersects with the bending line X2, or the starting position of the chamfer FK2a may be from the point where the cutout FK2 on the decorative film F side intersects with the bending line X2. As shown in Figures 16 and 17, the size of the black molded material portion, which is the complementary portion 54, 74 that fills the chamfer FK1a, as seen from outside the vehicle can be made smaller, thereby improving the appearance of the vehicle.Furthermore, since the remaining width FW2 of the decorative film F is set to be smaller than FW1, when the decorative film F is folded, the degree of overlap of the material is reduced, and the sharp V and wrinkles are reduced, thereby improving the appearance of the glass run product.

[0051] In addition, in this embodiment, after the base material 90 and decorative film F are extruded together with the mounting portions 51, 71 and main body portions 52, 72, a portion of the extension portions 53, 73 is cut out. However, it is also possible to bond the connecting wall portions 55, 57 of the glass run 50, 70, the extrusion-molded portion of the exterior side wall portion 65 on the exterior side of the vehicle without providing the base material 90, and the extrusion-molded portion on the center pillar side via the mold-molded portion Mo, and then attach a separate decorative film F to the exterior side of the glass run 50, 70, and bend the end portions formed with the mold-molded material on the end faces 53a, 73a of the extension portions 53, 73 from the exterior side to the interior side of the vehicle, and attach it to cover the end portions formed with the mold-molded material on the end faces 53a, 73a of the extension portions 53, 73.

[0052] In addition, in this embodiment, the decorative film F is described as being attached to the hidden type extension portions 53, 73 that are attached so as to cover and conceal the frame bodies 3, 4 of the front door 1 and rear door 2 from the outside of the vehicle, but the present invention can also be applied to a case where the attachment portion 11 is fitted into the frame body from below and the decorative film F is attached to the extension portions 13, 23 of the decorative lips 12, 22 that are provided on the outside of the vehicle, as shown in the conventional example (Figure 12). In addition, in this embodiment, as shown in Figures 5 and 10, the extension portion 53 of the front door 1 and the extension portion 73 of the rear door 2 are described as facing each other at a parting portion, but the present invention can also be applied to areas where the extension portions do not face each other, such as the molded portion on the front side of the front door 1 or the molded portion on the rear side of the rear door 2. In addition, in this embodiment, as shown in Figures 5 and 10, the case where the extension portion 53 of the front door 1 and the extension portion 73 of the rear door 2 protrude toward the parting portion beyond the extrusion molded product on the center pillar side has been described, but the present invention can also be applied to a case where they do not protrude and extend up to the position of the extrusion molded product on the pillar side. [Explanation of symbols]

[0053] 1. Front door 2 rear doors 3,4 Frame 3A flange 10,20 Grassland 11 Mounting part 12,22 Decorative lip 13,23 Extension part 13a, 23a End face of extension part 14,24 Prosthetic part 50,70 Grassland 51,71 Mounting part 52,72 Main body 53,73 Extension part 53a, 73a End face of extension part 53b, 73b Side surface generated by notch 53c, 73c End surface generated by notch 54,74 Prosthetic part 55,75 Upper wall 56,76 Lower wall 57,77 Connecting wall 58 Locking part 59 Body seal lip 60 Seal lip 61 Lip 62 Cover lip 63 Core material 64 Inner side wall 65 Outside side wall of the vehicle 66 Inner lip 67 Outer lip 68 Glass seal lip 81,82 Garnish 90 Undercoat 90a Edge of base material 91 Insert Panel F Decorative film F1 upper end F2 bottom end Fa Decorative film edge FW1,FW2 Width of remaining part of decorative film in vertical direction FL1, FL2 Width of the cutout on the decorative film side in the front-to-rear direction FZ1, FZ2 Remaining part of decorative film FZ1a, FZ2a End face of remaining decorative film FK1, FK2 Decorative film side notch FK1a, FK2a Chamfered part of the notch on the decorative film side G Door glass J fixed distance K Notch L fixed distance M1~M6 cut Molybdenum molded part N center core P point R Range S bending distance T non-bending distance V-point X, X1, X2 bending lines Z remaining part Za End face of remaining part

Claims

1. A glass run having an attachment portion attached to a door frame of an automobile and a main body portion for guiding the door glass as it moves up and down into a groove portion, the vehicle exterior side of the attachment portion being an extension portion extending from an end of an upper edge portion of the door toward a side away from the door, and having a decorative film provided thereon; The decorative film is folded at an end of the extension portion from the vehicle exterior side to the vehicle interior side of the extension portion so as to cover the end surface of the extension portion, Furthermore, the decorative film is provided on the extension portion via a base material made of a hard resin that is harder than the material that constitutes the extension portion, and at the end of the extension portion, it is folded together with the base material from the outside to the inside of the vehicle, and is provided so as to cover the end face of the extension portion.

2. 2. The glass run according to claim 1, wherein an insert panel is embedded between the bent base material and the end face of the extension portion.

3. A mounting structure for a glass run, characterized in that the glass run described in claim 1 or 2 is mounted on a front door and a rear door, respectively, and on the front door side, the extension portion of the glass run extends rearward from the rear end of the upper edge of the front door, and on the rear door side, the extension portion of the glass run extends forward from the front end of the upper edge of the rear door, with the extension portions facing each other at the parting portion of the front door and the rear door.

4. The door glass is attached to the door frame of the automobile and guides the door glass into the groove. The outer side of the door glass is an extension extending from the upper edge of the door to the side away from the door, and a decorative film is provided. The decorative film is provided on the extension portion via a base material made of a hard resin that is harder than the material constituting the extension portion, and at the end of the extension portion, the decorative film is folded together with the base material from the outside of the vehicle to the inside of the vehicle, and is provided so as to cover the end surface of the extension portion. Regarding the extension portion, after the decorative film and the base material are extruded together, a cut is made in the decorative film parallel to the end face of the extension portion a certain distance (L), and a cut is made in the decorative film a certain distance (J) from the inside of the vehicle toward the outside of the vehicle, thereby cutting out a part of the extension portion, and after removing the cutout, the remaining part is folded toward the inside of the vehicle at any position, and then molded to cover and conceal the end face of the folded remaining part.

5. The door glass is attached to the door frame of the automobile and guides the door glass into the groove. The outer side of the door glass is an extension extending from the upper edge of the door to the side away from the door, and a decorative film is provided. The decorative film is provided on the extension portion via a base material made of a hard resin that is harder than the material constituting the extension portion, and at the end of the extension portion, the decorative film is folded together with the base material from the outside of the vehicle to the inside of the vehicle, and is provided so as to cover the end surface of the extension portion. Regarding the extension portion, after the decorative film and the base material are both extrusion-molded, a cut is made in the decorative film parallel to the end face of the extension portion by a certain distance (L), and a cut is made from the inside of the vehicle toward the outside of the vehicle by a certain distance (J), thereby cutting out a part of the extension portion, and after removing the cutout portion, the remaining part is folded toward the inside of the vehicle by a folding distance (S = L - T) obtained by subtracting the non-folding distance (T) from the certain distance (L), and then mold-molded to cover and conceal the end face of the folded remaining part.

6. The door glass is attached to the door frame of the automobile and guides the door glass into the groove. The outer side of the door glass is an extension extending from the upper edge of the door to the side away from the door, and a decorative film is provided. The decorative film is provided on the extension portion via a base material made of a hard resin that is harder than the material constituting the extension portion, and at the end of the extension portion, the decorative film is folded together with the base material from the outside of the vehicle to the inside of the vehicle, and is provided so as to cover the end surface of the extension portion. The upper and lower ends of the decorative film are each inclined or arcuate from the vehicle exterior side to the vehicle interior side, Regarding the extension portion, after the decorative film and the base material are extrusion-molded together, a cut is made in the decorative film parallel to the end face of the extension portion by a certain distance (L), and a cut is made from the inside of the vehicle toward the outside of the vehicle by a certain distance (J), thereby cutting out a part of the extension portion, and after removing the cutout portion, The upper end and the lower end of the decorative film are also cut out at a certain distance (FL1, FL2) from the end face of the extension portion to reduce the width of the remaining portion in the vertical direction, The manufacturing method of the glass run is characterized in that the remaining part remaining after removing the notched part on the decorative film side is folded toward the inside of the vehicle by a folding distance (S), and then molded to cover and hide the end face of the folded remaining part.

7. The method for manufacturing a glass run according to claim 6, characterized in that the opposite side of the end face of the extension portion of the decorative film side cutout portion of the upper end and the lower end of the decorative film is chamfered to curve the corner portion.

Citation Information

Patent Citations

  • Molding for vehicle and its manufacture

    JP1992345830A

  • Door glass run structure of automobile

    JP1996300953A

  • Method and apparatus for manufacturing molding

    JP2004195746A

  • Glass run

    JP2013184627A

  • Glass run

    JP2016172478A