JPH0723311Y2 - Vehicle moldings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a vehicle molding, and more particularly to a vehicle molding having a metallic surface.

[Prior Art] Conventionally, a vehicle molding having a metallic surface is formed by coating a metallic decorative film on the outer surface of a main body. The decorative film is generally used because it has a bright metal tone when a metal deposition layer formed by depositing aluminum on the surface of a synthetic resin film is provided.

[Problems to be solved by the invention] However, a decorative film made of a synthetic resin film on which aluminum is vapor-deposited does not dissolve in water because the vapor-deposited aluminum undergoes a chemical change under the influence of environmental changes over the years, particularly rainwater and humidity. There is a problem that the decorative film disappears and the decorativeness is impaired from the terminal side of the decorative film attached to the molding.

Therefore, an object of the present invention is to solve the problem that the decorative film formed by aluminum vapor deposition deteriorates the decorative property due to environmental changes over time, and to provide a vehicle molding that exhibits a stable metallic tone for a long period of time. is there.

[Means for Solving the Problems] According to the means for achieving the above object, the decoration film having a metal vapor deposition layer on the surface of a synthetic resin film is mainly composed of a synthetic resin or a metal. Which is bonded to the decorative surface side of the main body, wherein the metal vapor deposition layer is composed of aluminum and chromium, and the weight% ratio of both is 99: 1 to 50:50. It is said that The ratio of weight% in the metal vapor deposition layer is preferably in the above range, and is more resistant to environmental changes than the metal vapor deposition layer of aluminum alone. The color tone of the metal vapor deposition layer within this range is in the middle of the color range of the metal vapor deposition layers of aluminum alone and chromium alone, and is a little blackish. Even within this range, the color tone becomes darker as the chrome ratio increases. If the chromium weight percentage exceeds 50, the metallic color tone becomes too dark, which is not preferable.

[Operation] The decorative surface of the molding is decorated with a decorative film. The decorative film has a metal vapor-deposited layer of aluminum and chromium and exhibits a unique metallic tone. Further, aluminum in this metal vapor deposition layer maintains the initial metal tone for a long period of time as compared with the metal vapor deposition layer of aluminum alone.

[Embodiment] Next, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 4 shows a bumper molding 1 attached to a bumper of a vehicle. The bumper molding 1 is mainly composed of an elongated body and leg portions 3 at a proper number of places that perform a clip action. As shown in FIG. 1, the main body 2 is made of a synthetic resin such as an ionomer resin,
The outer surface side has been processed to form the decorative surface S1.
A decorative film 4 having a metallic surface is used for the processing of the decorative surface S1. The decorative surface S1 is formed by joining the decorative film 4 so as to cover the upper surface of the main body 2. As shown in FIG. 3, the decorative film 4 is a synthetic resin film made of the same material as the main body 2, in this example, a transparent ionomer resin film layer 2B, a metal deposition layer 5B, a transparent polyester film layer 6 and a metal deposition layer 5A. And a transparent ionomer resin film layer 2A are sequentially joined. In the decorative film 4 of this example, the weight ratio of aluminum (metal) and chromium (metal) on both surfaces of the polyester film layer 6 is 90 pairs.
The mixture of 10 was vapor-deposited to form metal vapor-deposited layers 5A and 5B, and transparent ionomer resin layers 2A and 2B were heat-bonded to both surfaces of the layers.

A comparative example in which a 100% aluminum (metal) metal vapor deposition layer is provided on both sides of the polyester film layer and an aluminum (metal) layer on both sides of the polyester film layer
A test example in which a mixture of 90% and 10% of chromium (metal) was vapor-deposited on the metal (related to this example) was prepared.
The results of submersion in the saline solution (solution temperature 20 ° C.) are as shown in the table below.

In this example, the metal vapor deposition layers 5A and 5B are bonded to the polyester film layer 6 by vapor deposition. Since the transparent ionomer resin film layers 2A and 2B have good compatibility with the metal vapor deposition layers 5A and 5B, they are firmly joined by heat fusion.

The decorative film 4 is the ionomer resin film layer 2A, 2
A bumper in which the decorative film 4 is bonded to the main body 2 by placing it in a molding die (not shown) of the bumper molding 1 with the side B facing the cavity side and extruding a transparent ionomer resin into the cavity. Get Molding 1. As shown in FIG. 2, the decorative film 4 and the main body 2 are the ionomer resin film layers 2A, 2 of the decorative film 4.
It is fusion-bonded at the time of molding via B. M1 and M3 in FIG. 2 are fusion lines.

On the decorative surface S1 of the bumper molding 1 of this example, the color tone of the alloy of aluminum and chromium of the metal vapor deposition layer 5A can be seen beautifully through the transparent ionomer resin film layer 2A.

Next, a second embodiment of the present invention will be described with reference to FIGS.

The second embodiment is a case of a vehicle wind molding 11, and FIG. 5 shows a main body 12 of the wind molding 11.
The cross section including the leg portion 13 is shown. The main body 12 is formed of a soft synthetic resin such as PVC, PVC in this example, and sealing members 18, 18 for sealing are integrally formed by protruding at a predetermined portion by coextrusion molding. The outer surface side (upper surface side in the drawing) of the main body 12 is processed to form the decorative surface S2.

The decorative film 14 having a metallic surface is used for the processing of the decorative surface S2. As shown in FIG. 7, the decorative film 14 has a structure in which an adhesive layer 17, a metal deposition layer 16, and a transparent polyester film layer 15 are joined on the same PVC film layer 12A as the main body 12. The decorative film 14 is made of aluminum (metal) and chrome (metal) on one side of the polyester film layer 15.
A mixture of 90% by weight and 90% by weight is vapor-deposited to form a metal vapor deposition layer 16, and a PVC film layer 1 is provided under the metal vapor deposition layer 16 via an adhesive layer 17.
It is manufactured in the process of bonding 2A.

The decorative film 14 is positioned on the die side of the extrusion mold cavity (not shown) so that the PVC film layer 12A surface faces the cavity side (not shown), and PVC is extruded into the cavity to put the decorative film 14 on the main body 12. After joining, the soft synthetic resin is extruded to form the seal members 18, 18 to form the wind molding 11. That is, as shown in FIG. 6, the decorative film 14 and the main body 12 are made of PVC film layer 12A.
And is fusion bonded at the same time as molding. M2 in FIG. 6 shows a fusion line. In the decorative film 14 of the second embodiment,
The PVC film layer 12A is firmly bonded to the metal vapor deposition layer 16 via the adhesive layer 17.

The window molding 11 thus formed is used by being mounted on the outer periphery of the window of the vehicle. Since the decorative surface S2 of the wind molding 11 of the present example is the transparent polyester film layer 15, the beautiful metal color tone of the metal vapor deposition layer 16 can be seen from the outside, and the appearance is good.

The wind molding 11 of Example 2 was immersed in a 10% saline solution (liquid temperature 20 ° C.) for 120 hours, but no abnormality was found in the metal vapor deposition layer. It should be noted that the wind molding using 100% aluminum for the metal vapor-deposited layer is about 1/3 of the aluminum for the metal vapor-deposited layer in 120 hours in the saline solution.
Had changed to white.

Next, a third embodiment of the present invention will be described with reference to FIGS.

FIG. 8 shows a door molding (also called a belt molding) 21 attached to the lower edge of the vehicle door window. This door molding 21 is a door outer panel
The main body is an elongated main body 22 having a modified cross section capable of covering both edges of the reinforcing plate 36 and the reinforcing plate 36 and surrounding the outer peripheral portion of the lower edge of the door window, and seal members 32, 33. The main body 22 is formed by bending a metal strip material such as a stainless plate into a desired cross-sectional shape. The exposed outer surface of the main body 22 is a decorative surface
Processing for S3 has been performed.

A decorative film 24 having a metallic surface is used for the processing of the decorative surface S3. The decorative surface S3 is formed by bonding a decorative film 24 to the upper surface of the main body 22. The decorative film 24 is, as shown in FIG. 10, a transparent synthetic resin film surface provided with a metal vapor deposition layer 26, in this example, a transparent polyester film layer 25 provided with the metal vapor deposition layer 26, for example, a urethane adhesive layer. The decorative film 24 has a structure in which a PVC film layer 28 is bonded to the decorative surface S3 of the main body 22 with the transparent synthetic resin film side facing outward, for example, an acrylic / phenolic adhesive layer 29. Are joined through.

The metal vapor deposition layer 26 of this example is formed by vapor depositing a mixture of aluminum (metal) and chromium (metal) in a weight ratio of 90:10 on one surface of the transparent polyester film layer 25. In this example, the metal vapor deposition layer 26 is firmly bonded to the polyester film layer 25 by vapor deposition, and the PVC film layer 28 is an adhesive layer 27, 29 which is familiar to the metal vapor deposition layer 26 and the main body 22.
It is firmly joined via.

On the other hand, the windshield 37 side of the main body 22 is a windshield
A seal member 32 that is in contact with 37 and seals is adhered, and a seal member 33 that is in contact with the door outer panel 35 and that seals is adhered to the lower edge of the outer surface of the main body 22.
This is the door molding 21 of this example. As shown in FIG. 11, the door molding 21 of this example was used by being attached to the lower edge of the window of the door D of the vehicle G. The installed door molding 21 had a beautiful decorative surface S3 with a metallic color different from that of aluminum alone (an alloy color of 90% aluminum and 10% chromium).

The door molding 21 of Example 3 was immersed in a 10% saline solution (liquid temperature 20 ° C.) for 120 hours, but no abnormality was found in the metal vapor deposition layer. In addition, aluminum is used for the metal vapor deposition layer.
In a door molding (not shown) using 100%, the aluminum of the metal vapor deposition layer turned white about 1/3 of the end of the vapor deposition layer and did not show a bright color in 120 hours in the saline solution.

Next, a fourth embodiment of the present invention will be described with reference to FIGS.

FIG. 12 shows a grill molding 41 attached to the front grill on the tip side of the vehicle hood. The grill molding 41 mainly has an elongated main body 42 having a predetermined cross-sectional shape covering the tip of the grill member 54 and surrounding the outer edge of the grill member 54, and a seal member 52.

The main body 42 is formed by bending a metal strip made of a stainless steel plate or the like into a desired cross-sectional shape so that the front surface is wide and the front end of the grill member 54 is covered. 42A is the grill member 5
It is a locking piece to be engaged with the stepped portion 54A of 4. The exposed outer surface side of the main body 42 is processed to form a decorative surface S4. The processing of the decorative surface S4 is the same as in the case of the third embodiment described above. That is, the decorative film 44 is bonded to the upper surface of the main body 42 which is the decorative surface S4. The decorative film 44 has a structure in which a PVC film layer 48 is bonded to a transparent fluororesin film layer 45 surface provided with a metal vapor deposition layer 46, for example, via a urethane adhesive layer 47, and the decoration film 44 is a fluororesin. On the decorative surface S4 of the main body 42 with the film layer 45 side facing outward, for example, an acrylic / phenolic adhesive layer 49
Are joined through. The metal vapor deposition layer 46 of this example is formed by vapor depositing a mixture of aluminum (metal) and chromium (metal) in a weight ratio of 90:10 on one surface of the transparent fluororesin film layer 45. In this example, the metal vapor deposition layer 46 is firmly bonded to the fluororesin film layer 45 by vapor deposition,
The film layer 48 is firmly bonded to the metal vapor deposition layer 46 and the main body 42 via the adhesive layers 47 and 49 which are well compatible with each other.

On the other hand, a seal member 52 that contacts the tip of the bonnet panel 55 is bonded to the upper edge of the main body 42 to form the grill molding 41 of this example.

As shown in FIG. 11, the grill molding 41 of this example is
It was used by mounting it on the grill on the front end side of the hood panel 55 of vehicle G. The attached grill molding 41 is a decorative surface S4
Was as beautiful as the case of the third embodiment.

Since this grill molding 41 uses an alloy of aluminum and chromium for the metal vapor deposition layer 46, the metal vapor deposition layer 46
Has long-term stability.

Although the above-mentioned embodiments have been described with respect to the bumper molding 1 and the wind molding 11, the present invention is applied to a vehicle molding.

[Advantage of the Invention] The present invention has a weight percent ratio of aluminum to chromium in the metal deposition layer of the decorative film on the decorative surface side of the main body of 99 to 1 to 50.
Since it is set to 50, it is possible to form a decorative surface having a unique metallic tone different from the metal vapor deposition layer of aluminum alone or chromium alone, that is, a metallic tone having a high-grade feeling. Further, in the present invention, the stability of the metal vapor deposition layer is good, so that the initial metallic tone can be maintained for a long period of time.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a sectional view of a bumper molding, FIG. 2 is an enlarged view of a virtual line II portion of FIG. 1, FIG. 3 is a configuration diagram of a decorative film, and FIG. 4 is a bumper. Overall view of the molding, Fig. 5 is an overview of the wind molding, Fig. 6 is an enlarged view of the virtual line VI portion of Fig. 5,
FIG. 7 is another structural view of the decorative film, FIG. 8 is a sectional view of the door molding, FIG. 9 is an enlarged view of a virtual line frame IX portion of FIG. 8, FIG. 10 is a structural diagram of the decorative film, and FIG. Is an application diagram of the door molding, FIG. 12 is a cross-sectional view of the grill molding, and FIG. 13 is an enlarged view of a virtual line XIII portion in FIG. 1 …… Bumper molding 2,12,22,42 …… Main body 4,14,24,44 …… Decorative film 5A, 5B, 16,26,46 …… Metal deposition layer 11 …… Wind molding 21 …… Door molding 41 …… Grill molding S1, S2, S3, S4 …… Decorative surface

Claims (1)

[Scope of utility model registration request] 1. A molding in which a decorative film having a metal vapor deposition layer provided on a synthetic resin film layer surface is joined to a decorative surface side of a main body mainly made of synthetic resin or a main body mainly made of metal, The vapor-deposited metal layer is composed of aluminum and chromium, and the weight% ratio of both is 99: 1.
A vehicle molding characterized by being set to 50 to 50.