Door outer moldings for vehicles

Abstract

The present invention provides a vehicle door outer molding. The hybrid vehicle door outer molding for a vehicle uses different materials for a skin layer of a skin main body mounted to the upper end of a door panel and a wing portion that moves by contacting a door glass, the skin layer of the skin main body being made of a material having excellent scratch resistance, and the main wing being made of a material having excellent compression set (deformation).

Description

Technical Field

[0001] The present invention generally relates to a door outer molding for a vehicle, and more particularly, to a hybrid door outer molding for a vehicle, in which different materials are respectively used in a skin main body mounted to an upper end of a door panel and a wing portion moved by contacting a door glass, so as to improve the scratch resistance and appearance of the door. Background Art

[0002] like Figure 1 As shown in the related art, a door panel 10 for a vehicle is provided with a door outer molding 100 at its upper end. The door outer molding 100 performs a sealing function to prevent dust and foreign matter from entering the vehicle by contacting the surface of the door glass 20, and also serves as a decoration for improving the appearance of the door.

[0003] Figure 2 (Related Art) is a cross-sectional view showing the structure of a conventional door outer molding and its installation state.

[0004] like Figure 2 As shown, the door outer molding 100 is installed at the upper end of the door panel 10. The door outer molding 100 includes a skin body 110 fixed to the door panel 10 and a main wing 120 integrally formed at the inner side of the skin body 110.

[0005] The skin body 110 includes a metal core panel 112, a first skin layer 114, and a second skin layer 116. The metal core panel 112 forms a frame of the door panel 10. The first skin layer 114 is arranged by extruding on the surface of the core panel 112. The second skin layer 116 is arranged by extruding on the outer surface of the first skin layer 114 and is exposed to the outside of the door panel 10.

[0006] The first skin layer 114 is made of a soft thermoplastic vulcanizate (TPV) material. The second skin layer 116 is a portion exposed to the outside of the door panel 10, so the second skin layer 116 is made of a hard TPV material that is scratch-resistant compared to a soft TPV material for preventing scratches.

[0007] When the extrusion molding of the first skin layer 114 is performed, the main wing 120 is molded on the rear surface of the first skin layer 114 in a state of being bendable and moving up and down. In addition, the auxiliary wing 122 is molded at the upper end of the rear surface of the first skin layer 114 together with the main wing 120.

[0008] The main wing 120 and the auxiliary wing 122 are made of the same soft TPV material as the first skin layer 114 .

[0009] A method for manufacturing the above-mentioned conventional door outer side molding is as follows.

[0010] Figure 3 (Related Art) is a schematic flowchart showing a method for manufacturing a conventional door outer side molding.

[0011] First, the core sheet is unwound from a coil around which a flat core sheet is wound and fed into a roll former.

[0012] Next, a roll-forming process for the core sheet is performed in a roll-forming machine.

[0013] In this process, if Figure 2 As shown, the core plate 112 is formed to be divided into a connection end 112-1, an outer molded end 112-2, and an outer support end 112-3. The connection end 112-1 is inserted into the interior of the door panel 10 and has a vertically upright shape, the outer molded end 112-2 is bent outward from the upper end of the connection end 112-1 and exposed to the outside, and the outer support end 112-3 is bent inward from the lower end of the outer molded end 112-2 and is in close contact with the upper end of the outer surface of the door panel while forming a boundary.

[0014] Next, a non-polar TPV adhesive 118 is applied to the surface of the core board 112 , and the adhesive 118 is subjected to a high frequency treatment to weld the adhesive 118 to the core board 112 .

[0015] Then, an extrusion process is performed by integrally extruding the first skin layer 114 , the second skin layer 116 , the main wing 120 , and the auxiliary wing 122 on the surface of the core panel 112 , thereby manufacturing a conventional door outer side molding.

[0016] In a conventional door outer molding 100 manufactured by an extrusion process, a core panel 112, a soft TPV first skin layer 114 integrally formed on the surface of the core panel 112, and a hard TPV second skin layer 116 formed on the outer surface of the first skin layer 114 form a skin body 110. In addition, a soft TPV main wing 120 is formed on the rear surface of the first skin layer 114, and a soft TPV auxiliary wing 122 is formed at the upper end of the rear surface of the first skin layer 114.

[0017] Therefore, if Figure 2 As shown, when the skin body 110 is mounted to the upper end of the door panel 10 , the main wing 120 is in close contact with the surface of the door glass 20 , thereby being movable in the vertical direction.

[0018] In particular, when the skin body 110 is installed to the upper end of the door panel 10, the connecting end 112-1 of the core panel 112 is inserted into the inner side of the door panel 10, and the outer molding end 112-2 and the outer supporting end 112-3 are located on the outer side of the door panel 10. Therefore, the outer surfaces of the second skin layer 116 and the auxiliary wing 122 are exposed to the outer side of the door panel, and the main wing 120 is in close contact with the surface of the door glass 20 so that it can bend and move up and down.

[0019] like Figure 2 As shown, the main wing 120 is in close contact with the surface of the door glass 20, so that it can be flexibly moved up and down and performs a sealing function to prevent dust and foreign matter from entering the inner side of the door panel. The outer surfaces of the second skin layer 116 and the auxiliary wing 122 are exposed to the outside of the door panel and serve as a molding line or a decoration.

[0020] In addition, when the main wing 120 tilts upward by being in close contact with the door glass 20, the main wing 120 is in close contact with the inner portion of the auxiliary wing 122, so the auxiliary wing 122 performs a sealing function together with the main wing 120 to prevent dust and foreign matter from entering the inner side of the door panel.

[0021] However, the conventional door outer side molding has at least the following problems.

[0022] First, if Figure 6 As shown in the left figure of , although the second skin layer 116 is made of a hard TPV material having scratch resistance compared with a soft TPV material, there is a problem that scratches occur on the surface of the second skin layer 116 due to external force.

[0023] Secondly, since the second skin layer 116 and the auxiliary wing 122 are made of a hard TPV material and a soft TPV material, respectively, the second skin layer 116 and the auxiliary wing 122 present different colors, and thus the appearance of the vehicle door is deteriorated.

[0024] That is, the outer surfaces of the second skin layer 116 and the auxiliary wing 122 are exposed to the outside of the door panel and are used as molding lines and decorations to improve the appearance of the door. However, the hard TPV material used for the second skin layer 116 and the soft TPV material used for the auxiliary wing 122 have different gloss levels due to their consistency issues. Therefore, Figure 7 As shown in the left figure of FIG. 1 , when the second skin layer 116 and the auxiliary wing 122 together form a boundary line and are in different colors, the appearance of the vehicle door deteriorates. Summary of the invention

[0025] The present invention discloses a hybrid door outer molding for a vehicle. The door outer molding is configured to use different materials for the skin layer of the skin main body mounted to the upper end of the door panel and the main wing moving by contacting the door glass, wherein the skin layer of the skin main body is made of a PVC material having excellent scratch resistance, and the main wing is made of a TPV material having excellent compression set ("compression set" refers to the permanent deformation of the material). Therefore, the scratch resistance and appearance of the hybrid door outer molding can be improved.

[0026] In order to achieve the above object, according to one aspect of the present invention, a vehicle door outer molding is provided. The vehicle door outer molding comprises: a core plate providing a frame of the vehicle door outer molding; a polyvinyl chloride (PVC) skin layer provided by extrusion on the inner and outer surfaces of the core plate; a PVC auxiliary wing provided by integrally molding on the inner upper end of the PVC skin layer; and a thermoplastic vulcanizate (TPV) main wing provided by extrusion on a partial section of the inner outer surface of the core plate.

[0027] Preferably, when performing extrusion molding of the PVC skin layer, the PVC adhesive used for bonding can be applied to the inner and outer surfaces of the core panel, and when performing extrusion molding of the TPV main wing, the TPV adhesive used for bonding can be applied to a partial section of the inner outer surface of the core panel.

[0028] More preferably, the PVC adhesive and the TPV adhesive applied to the inner outer surface of the core panel may be applied with a buffer zone of about 1-3 mm between the adhesives to prevent the adhesives from mixing together.

[0029] Preferably, the core panel includes: a connecting end, which can be inserted into the inner side of the door panel and has a vertically upright shape; an outer molded end, which can be bent outward from the upper end of the connecting end; and an outer supporting end, which can be bent inward from the lower end of the outer molded end, wherein the bent portion between the connecting end and the outer molded end and the bent portion between the outer molded end and the outer supporting end can be formed with a curvature radius (R) in the range of approximately 1-30 mm.

[0030] Preferably, the PVC skin layer can be arranged by extrusion on the entire surface of the connecting end, on the inner and outer surfaces of the outer molding end, and on the outer surface of the outer supporting end, except for the portion between the upper and lower ends of the inner outer surface of the connecting end.

[0031] More preferably, PVC adhesive may be applied to the entire surface of the connecting end, the inner and outer surfaces of the outer molded end, and the outer surface of the outer supporting end, except for a portion between the upper and lower ends of the inner outer surface of the connecting end, and then the PVC skin layer is extruded thereon.

[0032] Preferably, the TPV main wing may be provided by extrusion on a portion between an upper end and a lower end of an inner outer surface of the connection end.

[0033] More preferably, the TPV adhesive may be applied to a portion between the upper and lower ends of the inner outer surface of the connection end in a manner having a buffer zone of approximately 1-3 mm with the upper PVC skin layer and the lower PVC skin layer respectively, and then, when the TPV main wing is set by extrusion, the TPV main wing may be attached thereto.

[0034] In addition, when the TPV main wing is provided by extrusion, an end portion of the TPV main wing in contact with the PVC auxiliary wing may be provided to have a higher hardness (Hs) than other portions.

[0035] Through the technical solutions described above, the present invention can achieve the following effects.

[0036] First, since the skin layer and auxiliary wing of the outer door molding are made of extruded PVC material, which has excellent scratch resistance compared with hard TPV material, scratches on the outer door molding can be prevented even when external force is applied to the skin layer and auxiliary wing exposed to the outside of the door panel.

[0037] Second, since the skin layer and the auxiliary wing exposed to the outside of the door panel are made of the same extruded PVC material, unlike the traditional situation in which the second skin layer and the auxiliary wing display different colors due to different materials, the skin layer and the auxiliary wing of the present invention display the same color, thereby improving the appearance of the door.

[0038] Thirdly, since the PVC material, which is relatively cheap compared with the TPV material, is applied to the skin layer and the auxiliary wing of the door outer side molding, the manufacturing cost of the door outer side molding can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description presented in conjunction with the accompanying drawings, in which:

[0040] Figure 1 (Related Art) is a schematic diagram showing the position of a door outer molding device of a vehicle.

[0041] Figure 2 (Related Technology) is a method for showing Figure 1 A cross-sectional view of the structure of a traditional door outer molding taken along line AA.

[0042] Figure 3 (Related Art) is a schematic flowchart showing a method for manufacturing a conventional door outer side molding.

[0043] Figure 4 is a schematic flow chart showing a method for manufacturing a vehicle door outer side molding according to the present invention.

[0044] Figure 5 2 is a cross-sectional view showing the structure and installation state of the door outer side molding according to the present invention, taken along line AA.

[0045] Figure 6 is a view showing comparison between scratch test results of a conventional door outer molding and a door outer molding of the present invention.

[0046] Figure 7 is a view showing a comparison between the colors of a conventional door outer side molding and a door outer side molding of the present invention. DETAILED DESCRIPTION

[0047] It should be understood that the term "vehicle" or "vehicular" or other similar terms used herein generally include motor vehicles, such as passenger automobiles including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles, ships including various boats, marine vessels, aircraft, etc., and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from non-petroleum energy sources). As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, such as both gasoline-powered and electric-powered vehicles.

[0048] The term used herein is only used to describe the purpose of specific embodiments and is not intended to limit the present invention. As used herein, the singular form "one", "one" and "said" are intended to also include plural forms, unless the context clearly states otherwise. It will also be understood that when the term "comprising" and / or "including" is used in this specification, it is indicated that there are the features, numerical values, steps, operations, elements and / or components, but it is not excluded that there are or add one or more other features, numerical values, steps, operations, elements, components and / or its groups. As used herein, the term "and / or" includes any and all combinations of one or more related enumerated items. Throughout the specification, unless explicitly described to the contrary, the term "comprising" and variations such as "comprising" or "containing" should be understood to imply that the elements are included but do not exclude any other elements. In addition, the terms "unit", "-device", "-part" and "module" described in the specification represent the unit for performing at least one function and operation, and can be implemented by hardware or software and a combination thereof.

[0049] In addition, the control logic of the present invention may be embodied as a permanent computer readable medium on a computer readable medium, including executable program instructions executed by a processor, a controller, etc. Examples of computer readable media include, but are not limited to, ROM, RAM, compact disk (CD)-ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device. The computer readable medium may also be distributed in a network-connected computer system so that the computer readable medium is stored and executed in a distributed manner, such as by a telematics server or a controller area network (CAN).

[0050] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0051] Figure 4 is a schematic flow chart showing a method for manufacturing a vehicle door outer side molding according to the present invention. Figure 5 is a cross-sectional view showing the structure and installation state of a door outer molding according to the present invention.

[0052] After the core panel 112 made of stainless steel (SUS) or aluminum (AL) is unrolled from a roll wound with the core panel 112 , two types of adhesives are applied to the inner and outer surfaces of the core panel 112 , respectively.

[0053] That is, when the core panel 112 is fed into a roll-forming machine and then formed in a predetermined cross-sectional form before two types of adhesives are applied thereto, there is a problem that the adhesive cannot be uniformly applied to the curved portion of the core panel 112 generated during the roll-forming. Therefore, it is preferred that the two types of adhesives be applied to the core panel 112 when the core panel 112 is in a flat state by being unrolled from a roll.

[0054] Therefore, the adhesive application process is performed such that the polyvinyl chloride (PVC) adhesive 130 is applied to a first surface of the core panel 112, and at the same time, the PVC adhesive 130 and the thermoplastic vulcanizate (TPV) adhesive 132 are applied to a second surface thereof with a space therebetween.

[0055] A polar acrylic adhesive is used as the PVC adhesive 130 for smooth bonding between the PVC structure and the SUS or AL metal material. A non-polar olefin adhesive is used as the TPV adhesive 132 for smooth bonding between the TPV structure and the SUS or AL metal material. Preferably, the PVC adhesive 130 and the TPV adhesive 132 are provided so as not to overlap or mix together.

[0056] For the reasons provided above, the PVC adhesive 130 and the TPV adhesive 132 are applied to the second surface of the core panel 112 with a buffer zone of about 1-3 mm between the adhesives to prevent the adhesives from mixing together, such as Figure 4 shown.

[0057] Next, the flat core board 112 to which the PVC adhesive 130 and the TPV adhesive 132 are applied is fed into a roll former and formed into a shape of a frame forming an outer side molding of a vehicle door.

[0058] During the forming process by the roll forming machine, the core plate 112 is formed to have a connection end 112-1, an outer molded end 112-2, and an outer support end 112-3. The connection end 112-1 has a vertically upright shape, the outer molded end 112-2 is bent outward from the upper end of the connection end 112-1, and the outer support end 112-3 is bent inward from the lower end of the outer molded end 112-2. In particular, the curved portion 112-4 between the connection end 112-1 and the outer molded end 112-2 and the curved portion 112-5 between the outer molded end 112-2 and the outer support end 112-3 are formed to have a curvature radius R greater than or equal to 1 mm, preferably, have a curvature radius R in the range of about 1-30 mm.

[0059] The reasons for forming the curved portions 112-4 and 112-5 to have a curvature radius R in the range of about 1-30 mm are as follows. Since vehicles have door panels of various shapes according to vehicle types, one reason is to smoothly mount the door outer side molding having the core plate 112 as an inner frame to the upper end of the door panel according to the vehicle type. Another reason is to prevent the PVC adhesive 130 from being removed from the outer surfaces of the curved portions 112-4 and 112-5 due to stress concentration on the curved portions 112-4 and 112-5 during the forming process.

[0060] That is, when the curved portions 112-4 and 112-5 are bent with a curvature radius R less than 1 mm, since stress is concentrated on the curved portions 112-4 and 112-5, the PVC adhesive 130 applied to the outer surfaces of the curved portions 112-4 and 112-5 is easily removed from the surface. However, when the curved portions 112-4 and 112-5 are formed to have a curvature radius R greater than or equal to 1 mm, the removal of the PVC adhesive 130 can be minimized or prevented. Therefore, the curved portions 112-4 and 112-5 are preferably formed to have a curvature radius R greater than or equal to 1 mm, and more preferably, the curved portions 112-4 and 112-5 are formed to have a curvature radius R in the range of about 1-30 mm, for adapting to various door structures and door shapes of vehicle types.

[0061] Next, an extrusion process is performed, in which the PVC skin layer 140 and the PVC auxiliary wing 142 are extruded on the surface of the core board 112 formed as described above to which the PVC adhesive 130 is applied. At the same time, the TPV main wing 120 is extruded on the area to which the TPV adhesive 132 is applied by using a known extrusion device.

[0062] For example, when the core panel 112 formed as described above passes through the extrusion device, the PVC resin is extruded from the PVC supply nozzle provided at one position of the extrusion device to the surface of the core panel 112 to which the PVC adhesive 130 is applied. At the same time, the TPV resin is extruded from the TPV supply nozzle provided at another position of the extrusion device to the region of the core panel 112 to which the TPV adhesive 132 is applied. Therefore, the PVC skin layer 140 and the PVC auxiliary wing 142 may be extruded on the surface of the core panel 112 to which the PVC adhesive 130 is applied, and the TPV main wing 120 may be extruded on the region to which the TPV adhesive 132 is applied.

[0063] In particular, before the above-mentioned forming process, the PVC adhesive 130 and the TPV adhesive 132 are applied to the core board 112. For the reasons described above, even when the core board 112 is formed into the connection end 112-1 having a vertically erected shape, the outer molded end 112-2 is bent outward from the upper end of the connection end 112-1, and the outer support end 112-3 is bent inward from the lower end of the outer molded end 112-2 by the forming process, the PVC adhesive 130 is still applied to the entire inner and outer surfaces of the outer molded end 112-2 and the outer support end 112-3, and the PVC adhesive 130 is also applied to the entire inner surface of the connection end 120-1 and the upper and lower ends of its outer surface.

[0064] In addition, the TPV adhesive 132 is applied to a partial section between the upper end and the lower end of the outer surface of the connection end 112 - 1 , and has a buffer section of 1-3 mm between the upper and lower PVC adhesives 130 .

[0065] Therefore, during the extrusion process, the PVC skin layer 140 and the PVC auxiliary wings 142 are integrally extruded on the inner and outer surfaces of the outer molding end 112-2 and the outer supporting end 112-3 to which the PVC adhesive 130 is applied, the entire inner surface of the connecting end 112-1, and the upper and lower ends of the outer surface of the connecting end 112-1.

[0066] In addition, during the extrusion process, the soft TPV main wing 120 is integrally extruded on a portion between the upper end and the lower end of the outer surface of the connection end 112 - 1 , ie, on the surface having the TPV adhesive 132 .

[0067] Meanwhile, when the PVC resin forming the PVC skin layer 140 and the PVC auxiliary wing 142 is extruded from the extrusion device, the optimal extrusion molding temperature of the PVC resin is a temperature in the range of about 110° C. to 175° C., and when the TPV resin forming the main wing is extruded from the extrusion device, the optimal extrusion molding temperature of the TPV resin is in the range of about 165° C. to 210° C. In view of this, in addition to the main wing 120, the PVC skin layer 140 and the PVC auxiliary wing 142 are also extruded at a temperature in the range of about 165° C. to 170° C., at which the PVC resin and the TPV resin can be extruded simultaneously.

[0068] According to the method for manufacturing the outer door molding of the present invention as described above, the outer door molding manufactured by the method includes a core panel 112 forming a frame of the outer door molding, a PVC skin layer 140 extruded on the inner and outer surfaces of the core panel 112, a PVC auxiliary wing 142 integrally molded on the inner upper end of the PVC skin layer 140, and a TPV main wing 120 extruded on a partial section of the inner outer surface of the core panel 112.

[0069] In particular, if Figure 5 As shown, the outer door molding of the present invention manufactured by the above method includes a metal core plate 112, a PVC skin layer 140, a PVC auxiliary wing 142, and a soft TPV main wing 120. The metal core plate 112 forms the frame of the outer door molding; in addition to the entire inner and outer surfaces of the outer molded end 112-2 and the outer support end 112-3 set in the core plate 112, the PVC skin layer 140 is also extruded on the entire inner surface of the connecting end 112-1 and the upper and lower ends of its outer surface; the PVC auxiliary wing 142 is integrally molded on the inner upper end of the PVC skin layer 140; the soft TPV main wing 120 is extruded on the surface between the upper and lower ends of the outer surface of the connecting end 112-1.

[0070] like Figure 5 As shown, the door outer side molding of the present invention manufactured as described above is installed at the upper end of the door panel 10 .

[0071] That is, when the upper end of the door panel 10 is assembled inside between the connection end 112 - 1 and the outer molded end 112 - 2 of the core panel 112 , the door outer molding of the present invention is fixed to the upper end of the door panel 10 .

[0072] Meanwhile, the main wing 120 is in close contact with the surface of the door glass 20 , thereby being movable in the vertical direction.

[0073] Specifically, the connection end 112-1 of the core panel 112 is inserted into the inner side of the door panel 10, and then the outer molded end 112-2 and the outer support end 112-3 are located at the outer side of the door panel 10. Therefore, the outer surfaces of the PVC skin layer 140 and the PVC auxiliary wing 142 are exposed to the outer side of the door panel 10. In addition, the TPV main wing 120 is in close contact with the surface of the door glass 20, so that it can move in the vertical direction.

[0074] like Figure 5 As shown, as the door glass 20 moves up and down, the TPV main wing 120 is folded and then contacts the PVC auxiliary wing 142 formed of a material different from the TPV main wing 120. Therefore, a friction connection is generated therein.

[0075] In order to solve this problem, when the TPV main wing 120 is extruded from a known extrusion device, one end of the TPV main wing 120 (i.e., the portion in contact with the PVC auxiliary wing 142) is extruded to have a greater hardness (Hs) than other portions of the main wing 120. Therefore, when the end of the TPV main wing 120 contacts the PVC auxiliary wing 142 using a different material therein, the TPV main wing 120 is guided to slide and contact the PVC auxiliary wing 142 without friction. Therefore, friction connection can be easily prevented.

[0076] The TPV main wing 120 is in close contact with the surface of the door glass 20 so as to be movable in the vertical direction and perform a sealing function to prevent dust and foreign matter from entering the door panel. The outer surfaces of the PVC skin layer 140 and the PVC auxiliary wing 142 are exposed to the outside and used as molding lines and decorations.

[0077] In addition, when the main wing 120 is flattened upward by being in close contact with the door glass 20, the main wing 120 is in close contact with the inner portion of the PVC auxiliary wing 142. Here, the PVC auxiliary wing 142 also performs a sealing function with the main wing 120 for preventing dust and foreign matter from entering the door panel.

[0078] According to the present invention, the PVC skin layer 140 and the PVC auxiliary wing 142 of the outer door molding are extruded PVC materials, which have excellent scratch resistance compared to hard TPV materials. Figure 6 As shown in the right figure, the outer surfaces of the PVC skin layer 140 and the PVC auxiliary wing 142 exposed to the outside of the door panel can be kept clean without scratches.

[0079] In addition, the PVC skin layer 140 and the PVC auxiliary wing 142 are made of the same extruded PVC material. Figure 7 As shown in the right figure, unlike the conventional case where the second skin layer and the auxiliary wing are formed of different materials to produce a boundary line and have different colors, the PVC skin layer 140 and the PVC auxiliary wing 142 are the same color. Therefore, compared with the conventional door outer molding, the door outer molding of the present invention has a high-end and satisfactory appearance.

[0080] Although preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. A door outer molding for a vehicle, the door outer molding comprising: a core panel providing a frame for the outer side molding of the door; PVC skin layers provided by extrusion on the inner and outer surfaces of the core panel; A PVC auxiliary wing provided by being integrally molded on the inner upper end of the PVC skin layer; and TPV main wings are provided by extrusion on a partial section of the inner outer surface of the core plate, wherein the PVC adhesive is applied to the inner and outer surfaces of the core panel, and the TPV adhesive is applied to a partial section of the inner outer surface of the core panel, The PVC adhesive and TPV adhesive applied to the inner outer surface of the core panel are applied in such a way that there is a 1 mm to 3 mm buffer zone between the adhesives to prevent the adhesives from mixing together.

2. The door outer molding for a vehicle according to claim 1, wherein: The core plate comprises: a connecting end which is inserted into the inner side of the door panel and has a vertically upright shape; an outer molded end that is bent outward from an upper end of the connecting end; and an outer support end which is bent inwardly from a lower end portion of the outer molded end, Wherein, the curved portion between the connecting end and the outer molded end and the curved portion between the outer molded end and the outer supporting end are formed with a curvature radius ranging from 1 mm to 30 mm.

3. The door outer molding for a vehicle according to claim 2, wherein: The PVC skin layer is provided by extrusion on the entire surface of the connecting end, on the inner and outer surfaces of the outer molding end, and on the outer surface of the outer supporting end, except for the portion between the upper and lower ends of the inner outer surface of the connecting end.

4. The door outer molding for a vehicle according to claim 3, wherein: Except for the portion between the upper and lower ends of the inner outer surface of the connecting end, a PVC adhesive is applied to the entire surface of the connecting end, the inner and outer surfaces of the outer molded end, and the outer surface of the outer supporting end, and then the PVC skin layer is extruded thereon.

5. The door outer molding for a vehicle according to claim 2, wherein: The TPV main wing is provided by extrusion on a portion between the upper end and the lower end of the inner outer surface of the connection end.

6. The door outer molding for a vehicle according to claim 5, wherein: The TPV adhesive is applied to a portion between the upper and lower ends of the inner outer surface of the connection end in a manner having a buffer zone of 1 mm to 3 mm between the upper and lower PVC skin layers, and then, when the TPV main wing is set by extrusion, the TPV main wing is attached thereto.

7. The door outer molding for a vehicle according to claim 1, wherein: When the TPV main wing is provided by extrusion, an end portion of the TPV main wing in contact with the PVC auxiliary wing is provided to have a higher hardness than other portions.

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