JP2019131037A - Vehicle molding - Google Patents

Abstract

To improve adhesion strength between a metal material and an adhesion layer in a vehicle molding in which a resin part and the partially exposed metal material are adhered by the adhesion layer.SOLUTION: A vehicle molding includes: an elongated core material 2; a resin part 3 which holds the core material 2 at least partially exposed and is made of resin; and an adhesion layer 4 inserted between the core material 2 and the resin part 3. The core material 2 has: a front layer part having multiple recessed parts communicating with a surface and formed at an area with which at least the adhesion layer is brought into contact; and a support layer part to which the front layer part is fastened and which supports the front layer part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicular molding.

  Conventionally, a molding such as an outside molding is mounted on a vehicle. The outside molding is attached to the upper edge portion of the door panel, and prevents water or the like from entering the gap between the door panel and the window plate, for example.

  Patent Document 1 discloses an outside molding as described above, which includes a metal material that is at least partially exposed in order to improve design properties. In such an outside molding, since a part of the metal material is exposed to the outside of the vehicle, the metallic luster can be visually recognized from the outside of the vehicle, and the texture of the vehicle can be improved.

Japanese Utility Model Publication No. 7-5847

  By the way, in moldings such as the outside molding, a metal material that is partially exposed and a resin portion made of resin for holding the metal material are fixed via an adhesive layer. Such an adhesive layer is formed of, for example, a thermosetting resin, and after the adhesive applied to the metal material is baked and dried by high-frequency heating, it is heated and pressure-bonded with a molten resin at the time of extrusion molding. It is formed. Such an adhesive layer bonds the metal material and the resin portion. However, if the adhesive strength between the metal material and the adhesive layer is not sufficient due to insufficient heating, etc., for example, part of the metal material may peel off from the resin part during long-term use, which adversely affects the molding design. There is a risk.

  The present invention has been made in view of the above-described problems. In a vehicular molding in which a resin portion and a partially exposed metal material are bonded by an adhesive layer, the adhesive strength between the metal material and the adhesive layer is increased. The purpose is to improve.

  The present invention adopts the following configuration as means for solving the above-described problems.

  The first invention includes a long metal material, a resin resin portion that holds at least a part of the metal material in an exposed state, and an adhesive layer that is interposed between the metal material and the resin portion. A surface layer portion formed in a region where the metal material has a plurality of recesses communicating with the surface and at least the adhesive layer contacts, and the surface layer portion is fixed and the surface layer The structure which has a support layer part which supports a part is employ | adopted.

  A second invention employs a configuration in which, in the first invention, the surface layer portion is formed of a material obtained by oxidizing the forming material of the support layer portion.

  A third invention adopts a configuration in which the surface layer portion is an anodized film in the second invention.

  According to a fourth invention, in any one of the first to third inventions, a configuration is adopted in which the surface layer portion is also provided in a region where the metal material is exposed.

  According to a fifth invention, in any one of the first to fourth inventions, the adhesive layer has an uneven surface in which the surface on the metal material side follows the concave portion of the surface layer portion, and the surface on the resin portion side The configuration is a smooth surface.

  According to the present invention, a surface layer portion having a plurality of recesses communicating with the surface is formed in a region that is at least partially exposed and is in contact with an adhesive layer of a metal material held in the resin portion. . Such a concave portion of the surface layer portion can increase the surface area of the metal material as compared with the case where there is no surface layer portion. For this reason, according to this invention, the contact area with an adhesive layer can be increased and the adhesive strength with respect to the metal material of an adhesive layer can be strengthened. Therefore, according to the present invention, it is possible to improve the adhesive strength between the metal material and the adhesive layer in the vehicular molding in which the resin portion and the partially exposed metal material are bonded by the adhesive layer.

It is a front view of the bronze door of the vehicle in which the outside molding in one embodiment of the present invention is installed. It is an expansion perspective view containing the one end part of the outside molding in one embodiment of the present invention. It is the sectional view on the AA line of FIG. It is a typical partial expanded sectional view of the outside molding in one embodiment of the present invention in the part containing an adhesion layer.

  Hereinafter, an embodiment of a vehicle molding according to the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of a front door 10 of a vehicle in which an outside molding 1 (vehicle molding) according to the present embodiment is installed. As shown in FIG. 1, the front door 10 of the vehicle includes a door panel 11, a window frame 12, a window plate 13, and an outside molding 1. The door panel 11 is a strength member made of a steel plate, and includes, for example, a door outer panel that is an exterior panel and a door inner panel that is disposed inside the door outer panel. The window frame 12 is a frame body provided on the upper portion of the door panel 11. The window board 13 is arrange | positioned at the area | region enclosed by the window frame 12, and is raised / lowered by the raising / lowering mechanism not shown.

  The outside molding 1 of the present embodiment is an elongated part that extends and is fixed to the upper end of the door panel 11 in the vehicle front-rear direction (left-right direction in FIG. 1). It is arranged to fill the gap. FIG. 2 is an enlarged perspective view including one end portion of the outside molding 1 of the present embodiment. As shown in this figure, the outside molding 1 of this embodiment has a lid portion formed by drawing a core material 2 to be described later at the end portion, thereby requiring a so-called end cap. It has a structure that does not. However, it is also possible to adopt a configuration in which the end portion of the core material 2 is an open end and an end cap is attached to the open end without drawing the core material 2.

  FIG. 3 is a cross-sectional view taken along line AA in FIG. As shown in FIG. 3, the door panel 11 to which the outside molding 1 of the present embodiment is attached has its upper end folded back from the outside to the inside of the vehicle. The portion of the door panel 11 that has been folded in this manner is hereinafter referred to as a folded portion 11a. The door panel 11 has a shape in which the above-described folded portion 11a is provided from one end to the other end in the vehicle front-rear direction.

  As shown in FIG. 3, the outside molding 1 of the present embodiment includes a core material 2 (metal material), a resin portion 3, an adhesive layer 4, and a low friction layer 5. The core material 2 is a strength member for ensuring the rigidity of the outside molding 1 of the present embodiment, and is a component made of stainless steel formed by roll forming. The core material 2 is disposed along the extending direction of the outside molding 1, and a part thereof is held by the resin portion 3 in an exposed state. As shown in FIG. 3, the core material 2 includes an embedded region 2 a embedded in the resin portion 3, an exposed region 2 b exposed on one side toward the outside, and a tip region connected to the lower end of the exposed region 2 b. 2c.

  The embedded region 2a and the front end region 2c are arranged to face each other so as to sandwich the folded portion 11a of the door panel 11. The embedded region 2a is arranged on the vehicle inner side, and the front end region 2c is arranged on the outer side of the vehicle. The exposed region 2b is curved so as to connect the embedded region 2a and the tip region 2c. This exposed region 2b is a region where the outer surface is exposed toward the outside of the vehicle when the outside molding 1 of the present embodiment is mounted on the vehicle. Note that the embedded region 2a and the tip region 2c cannot be visually recognized from the outside when the outside molding 1 of the present embodiment is mounted on the vehicle.

  FIG. 4 is a schematic partial enlarged cross-sectional view of the outside molding 1 at a location including the adhesive layer 4. As shown in this figure, the core material 2 has a surface layer portion 2d and a support layer portion 2e. The surface layer portion 2d is a layer that forms the front surface side of the core material 2, and is formed so as to cover the entire front and back surfaces of the support layer portion 2e. The surface layer portion 2d is made of an oxide film obtained by anodizing the forming material (for example, stainless steel) of the support layer portion 2e, and has a plurality of recesses 2d1 communicating with the surface as shown in FIG. Yes. The surface layer portion 2d is formed over the entire area of the front and back surfaces of the core material 2 including the area where the adhesive layer 4 contacts.

  Such a surface layer portion 2d is fixed to the support layer portion 2e by chemical bonding, and is a layer that increases the surface area of the core material 2. That is, since the concave portion 2d1 (so-called pore) is formed on the surface of the surface layer portion 2d, the core material 2 does not include the surface layer portion 2d, but has a surface area that is increased. ing. As a result, the contact area between the core material 2 and the adhesive layer 4 is increased, and the adhesive strength between the core material 2 and the adhesive layer 4 is improved.

  Further, in the present embodiment, the surface layer portion 2d is also provided on the surface side of the exposed region 2b of the core member 2 (the surface side directed toward the outside of the vehicle). The color of the exposed region 2b of the core material 2 to be visually recognized is determined. The thickness of the surface layer portion 2d is set so that the color of the exposed region 2b of the core material 2 is recognized as a desired color. For example, the film thickness of the surface layer portion 2d is set so that the exposed region 2b of the core material 2 has a black metallic luster.

  Thus, in the present embodiment, the surface layer portion 2d has two functions: a function of increasing the adhesive strength between the core material 2 and the adhesive layer 4, and a function of defining the color of the core material 2. For this reason, in the outside molding 1 of this embodiment, it is not necessary to provide the coloring to the core material 2 and the improvement of the adhesive strength of the core material 2 by providing another functional layer, and has a simple structure. That is, the outside molding 1 of the present embodiment has a surface layer portion 2d made of an oxide film to an extent that the exposed region 2b is visually recognized as a colored (for example, black) metallic luster, for example, much more than a general stainless steel oxide film. The adhesive strength between the core material 2 and the adhesive layer 4 is improved by the anchor effect that the adhesive layer 4 enters into the deep recess 2d1 obtained by increasing the thickness.

  The support layer portion 2e is a portion to which the surface layer portion 2d is fixed and supports the surface layer portion 2d, and the surface layer portion 2d is formed over the entire front and back surfaces. The support layer portion 2e is formed of a material (for example, stainless steel) before the surface layer portion 2d is oxidized.

  The resin portion 3 holds the core material 2 and is supported by the core material 2, and is a resin member formed of, for example, vinyl chloride. The resin portion 3 includes a base portion 3a in which an embedded region 2a of the core material 2 is disposed, a tilt prevention portion 3b that prevents the core material 2 from tilting, two lips 3c that protrude to the inside of the vehicle, And a dampening lip 3e.

  The base 3a is provided so as to cover the embedded region 2a of the core material 2 from both the front and back sides. An inner panel abutting portion 3a1 is provided so as to protrude toward the door panel 11 side of the base portion 3a. The inner panel abutting portion 3a1 is disposed to face the tilt preventing portion 3b and sandwiches the door panel 11 together with the tilt preventing portion 3b. When the door panel 11 is inserted into the gap between the inner panel abutting portion 3a1 and the tilt prevention portion 3b, an inner lip 3b1 described later of the tilt prevention portion 3b is elastically deformed, and the door panel 11 is held by the restoring force of the inner lip 3b1. Is done. That is, the outside molding 1 is fixed to the door panel 11 by the inner panel contact portion 3 a 1 and the tilt prevention portion 3 b holding the door panel 11.

  In addition, the base 3a includes a retaining portion 3a2. The retaining portion 3a2 is provided at the lower portion of the base portion 3a so as to protrude outward from the vehicle, and comes into contact with the end portion 11b of the door panel 11 directed downward to form the folded portion 11a from below. As a result, the outside molding 1 is prevented from coming out upward with respect to the door panel 11.

  The tilt prevention portion 3b is disposed to face the base portion 3a so as to sandwich the door panel 11. The tilt prevention portion 3b is bonded to the inner wall surface of the exposed region 2b of the core material 2 via the adhesive layer 4, and prevents the core material 2 from tilting by supporting the core material 2 from the inside. Yes.

  This tilt prevention part 3b has an internal lip 3b1 provided to project to the door panel 11 side. The internal lip 3b1 is a lip that is elastically deformed by being pressed by the door panel 11 inserted between the base 3a and the tilt prevention part 3b. The restoring force of the door lip 3 causes the base 3a, the tilt prevention part 3b, Hold between.

  The lip 3c is in contact with the window plate 13 via the low friction layer 5, and prevents rainwater or the like from entering between the window plate 13 and the outside molding 1 of the present embodiment. The lip 3c is flexible enough to prevent the window plate 13 from moving up and down.

  The decorative lip 3d is provided at the upper end portion of the base portion 3a, and is a portion protruding from the base portion 3a in the direction of the window plate 13. The buffer lip 3e is provided in the tip region of the core member 2, and is a part that abuts against the door panel 11 and elastically deforms. The buffer lip 3e prevents rainwater or the like from entering between the door panel 11 and the outside molding 1 of the present embodiment, and absorbs variations during installation. Further, the buffer lip 3 e is bonded to the surface of the core material 2 through the adhesive layer 4.

  The adhesive layer 4 is interposed between the core material 2 and the resin portion 3 and adheres the core material 2 and the resin portion 3. More specifically, the adhesive layer 4 is formed between the core material 2 and the base portion 3 a of the resin portion 3, between the core material 2 and the tilt prevention portion 3 b of the resin portion 3, and between the core material 2 and the resin portion 3. It is inserted between the buffer lip 3e. For example, the adhesive layer 4 is a layer formed by heating and curing a thermosetting adhesive. As shown in FIG. 4, such an adhesive layer 4 is in a state of entering a plurality of recesses 2d1 provided in the surface layer portion 2d of the core material 2, and the surface on the core material 2 side is in the surface layer portion 2d. It is an uneven surface following the provided recess 2d1. On the other hand, the surface of the adhesive layer 4 on the side of the resin part 3 is in a state of being attached to the surface of the resin part 3 (namely, the tilt prevention part 3b), and follows the surface of the resin part 3 (namely, the tilt prevention part 3b). It is considered as a smooth surface.

  The low friction layer 5 is a layer in which nylon pile or the like having a lower friction than the lip 3c is planted, is formed on the surface of the lip 3c, and is in direct contact with the window plate 13. With the low friction layer 5, the outside molding 1 of the present embodiment can be slidably brought into contact with the window plate 13 in a state in which the surface of the window plate 13 is prevented from being damaged.

  For example, when manufacturing such an outside molding 1 of this embodiment, the strip | belt shape which has the surface layer part 2d and the support layer part 2e by anodizing the metal material of a strip | belt state consisting of stainless steel etc. The core material 2 is formed. When the core material 2 is formed, a metal material having a necessary length may be cut out from the hoop material, and the core material 2 may be formed by anodizing the cut metal material. It is also conceivable to form the core material 2 by oxidation treatment.

  Subsequently, an adhesive in a softened state is applied to the belt-shaped core material 2 and then dried by heating the adhesive with a high-frequency heater or the like. Further, the belt-like core material 2 on which the adhesive is formed is gradually formed into a final shape shown in FIG. 3 by roll forming. Note that the adhesive is dried and loses adhesion. For this reason, it is prevented that an adhesive adheres to a roll forming machine at the time of roll forming.

  Then, the resin part 3 is formed by extrusion molding with respect to the surface of the core material 2 which apply | coated the adhesive agent. At this time, the adhesive is fixed to the resin part 3 by being heated and pressure-bonded with the molten resin, and the adhesive layer 4 for bonding the core material 2 and the resin part 3 is formed. Then, the outside molding 1 of this embodiment is completed by cooling the resin part 3 and the contact bonding layer 4, and performing required post-processing.

  According to the outside molding 1 of the present embodiment as described above, at least a part of the outer molding 1 is exposed and communicated with the surface with respect to a region that is in contact with the adhesive layer 4 of the core member 2 held by the resin portion 3. A surface layer 2d having a plurality of recesses 2d1 is formed. The surface area of the core material 2 can be increased by the concave portion 2d1 of the surface layer portion 2d as compared with the case where the surface layer portion 2d is not provided. For this reason, according to the outside molding 1 of this embodiment, the contact area with the adhesive layer 4 can be increased, and the adhesive strength of the adhesive layer 4 to the core material 2 can be enhanced.

  Further, in the outside molding 1 of the present embodiment, the surface layer portion 2d is formed of a material obtained by oxidizing the forming material of the support layer portion 2e. For this reason, the surface layer part 2d which has the some recessed part 2d1 can be easily formed by oxidizing the surface of the strip | belt-shaped metal material which consists of a forming material of the support layer part 2e.

  In the outside molding 1 of the present embodiment, the surface layer portion 2d is an anodized film. For this reason, it becomes possible to form the core material 2 which has the surface layer part 2d and the support layer part 2e from the strip | belt-shaped metal material which consists of a forming material of the support layer part 2e by a simple process.

  Moreover, in the outside molding 1 of this embodiment, the surface layer part 2d is provided also in the area | region where the core material 2 was exposed. For this reason, it is possible to arbitrarily change the color tone of the exposed region 2b by adjusting the film thickness of the surface layer portion 2d without forming a layer for changing the color tone of the core material 2 separately.

  Further, in the outside molding 1 of the present embodiment, the adhesive layer 4 has a surface on the core material 2 side that is an uneven surface following the recess 2d1 of the surface layer portion 2d, and a surface on the resin portion 3 side that is a smooth surface. ing. For example, when the surface on the resin part 3 side of the adhesive layer 4 is an uneven surface following the recess 2d1 of the surface layer part 2d, the surface on the adhesive layer 4 side of the resin part 3 is necessarily an uneven surface. In such a case, sink marks may be generated when the resin part 3 formed by injection molding is cooled, and the resin part 3 may be deformed. On the other hand, when the surface on the resin part 3 side of the adhesive layer 4 is a smooth surface as in the outside molding 1 of the present embodiment, the surface on the adhesive layer 4 side of the resin part 3 is also a smooth surface. Thus, it is possible to suppress the occurrence of sink marks in the resin portion 3 during cooling.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the spirit of the present invention.

  For example, in the said embodiment, the structure provided with the embedding area | region 2a which the core material 2 embed | buries in the resin part 3, and the exposed area | region 2b exposed toward the exterior was employ | adopted. However, the present invention is not limited to this. For example, the core material 2 can be divided into two parts, a part embedded in the resin portion 3 and a part exposed to the outside. In such a case, the part embedded in the resin part 3 becomes the strength member of the outside molding 1, and the part exposed to the outside becomes the decorative member that gives the outside molding 1 a metallic luster. In this case, the adhesive layer 4 is interposed between the part (metal material) exposed to the outside and the resin part 3, and at least the part exposed to the outside includes the surface layer part 2d. In addition, when the rigidity of the outside molding 1 is sufficiently secured by the part exposed to the outside or the resin part 3, the part embedded in the resin part 3 can be omitted. .

  Moreover, in the said embodiment, the oxide film formed by anodizing the base material (metal material which consists of the material which forms the support layer part 2e) was made into the surface layer part 2d. However, the present invention is not limited to this. For example, it is possible to form a concave portion by physically processing the surface of the base material, and to use the layer in which the concave portion is formed as a surface layer portion. It is also possible to adopt a configuration in which a metal porous body made of a material different from the base material is fixed to the base material and this metal porous body is used as a surface layer portion.

  Moreover, in the said embodiment, the structure by which the contact bonding layer 4 was inserted between the inclination prevention part 3b of the resin part 3 and the core material 2 was demonstrated. However, the position where the adhesive layer 4 is inserted is not limited to this. For example, it is possible to employ a configuration in which the adhesive layer 4 is interposed between the base portion 3 a of the resin portion 3 and the core material 2.

  Moreover, in the said embodiment, the structure whose core material 2 is stainless steel was demonstrated. However, the present invention is not limited to this. For example, it is possible to employ a configuration in which the core material 2 is formed of aluminum or an aluminum alloy. In this case, the surface layer portion 2d is formed of, for example, aluminum oxide.

  Moreover, in the said embodiment, the structure which applied the molding for vehicles of this invention to the outside molding 1 provided with the lip | rip 3c which can be slid through the low friction layer 5 to the window board 13 to raise / lower was demonstrated. However, the present invention is not limited to this. For example, the present invention can be applied to a vehicular molding that abuts against a fixed window plate that does not move up and down.

  Moreover, in the said embodiment, the structure by which the surface by the side of the resin part 3 of the contact bonding layer 4 was a smooth surface was demonstrated. However, the present invention is not limited to this, and does not exclude a configuration in which the surface of the adhesive layer 4 on the resin portion 3 side is an uneven surface.

  Moreover, in the said embodiment, the structure by which the surface layer part 2d was formed in the whole region of the core material 2 was demonstrated. However, the present invention is not limited to this. For example, it is possible to adopt a configuration in which the surface layer portion 2d is formed only in a part including the region bonded to the adhesive layer 4 of the core material 2.

  Moreover, in the said embodiment, the structure in which the resin part 3 was formed with vinyl chloride was demonstrated. However, the present invention is not limited to this. For example, the resin portion 3 can be formed using synthetic rubber, natural rubber, or the like.

  DESCRIPTION OF SYMBOLS 1 ... Outside molding (vehicle molding), 2 ... Core material (metal material), 2a ... Embedded area, 2b ... Exposed area, 2c ... Tip area, 2d ... Surface layer part, 2d1 ... Concave part 2e: Support layer part, 3: Resin part, 3a: Base part, 3b: Tilt prevention part, 3e: Buffer lip, 4: Adhesive layer, 5: Low friction layer

Claims (5)

A vehicular molding comprising a long metal material, a resin resin portion that holds at least a part of the metal material in an exposed state, and an adhesive layer interposed between the metal material and the resin portion. Because
The metal material has a plurality of recesses communicating with the surface, and has a surface layer portion formed at least in a region where the adhesive layer contacts, and a support layer portion to which the surface layer portion is fixed and supports the surface layer portion. A vehicular molding characterized by this.   The vehicular molding according to claim 1, wherein the surface layer portion is formed of a material obtained by oxidizing the forming material of the support layer portion.   The vehicular molding according to claim 2, wherein the surface layer portion is an anodized film.   The vehicular molding according to any one of claims 1 to 3, wherein the surface layer portion is also provided in a region where the metal material is exposed.   The surface of the said metal material side is made into the uneven surface which followed the recessed part of the said surface layer part, and the surface of the said resin part side is a smooth surface, The said contact bonding layer is any one of Claims 1-4 characterized by the above-mentioned. Vehicle molding as described in 1.

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