JP2015009764A - Automobile exterior resin parts and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide automobile exterior resin parts and a manufacturing method of the automobile exterior resin parts which provide a shape, colors and material which are consistent with owner's tastes and cause a pattern of light to emerge on an outer surface of the automobile exterior resin parts while remaining the shape and the like as it is with respect to the automobile exterior parts formed with an opaque resin.SOLUTION: Automobile exterior resin parts include: a resin parts main body 10 which forms the total shape of the automobile exterior resin parts and has a non-light transmissive property and thickness; a light transmissive part which is formed on a prescribed portion of the resin parts main body 10 with transparent or semi-transparent resin and penetrates the resin parts main body 10 from front to back; and an opaque coated film 20 with which a front surface of the resin parts main body 10 containing the light transmissive part is covered. Therein, when a light emission device 40 arranged on the back surface side of the resin parts main body 10 applies light toward the back surface of the light transmissive part, the light is transmitted by the light transmissive part and is applied to the back surface of the coated film 20 and a pattern of light is emerged on the front surface side of the coated film 20.

Description

  The present invention relates to an automobile exterior resin part and a manufacturing method thereof.

  Automotive exterior resin parts have the purpose of protecting passengers and vehicle outer plates, but also have a decorative meaning. In particular, exterior resin parts for automobiles are regarded as decorations in addition to paint color decorations, as well as the resin part shape itself. In addition, the materials used for the exterior resin parts and the coating such as plating are within the scope of decoration.

  When a car purchaser desires a design different from that of an off-the-shelf product, it can be replaced with an exterior resin part having a desired design selected from mounting options provided by a dealer at the time of purchasing or after purchasing the car. In addition, it is possible to apply a desired decoration to the exterior resin part at a custom specialty store or to replace the exterior resin part with a desired design. Of course, you can do this yourself.

  The decoration of the exterior resin component can satisfy the taste preference of the purchaser by appealing to the shape, color, material, etc. during the day, and can appeal to those who observe the exterior resin component from the outside. However, at night, the chances of observing the shape, color, material, etc. are extremely limited, and it is difficult to satisfy the purchaser's hobbies and appeals.

  In view of such circumstances, Patent Document 1 discloses a technique for displaying characters and the like with light on the surface of a front protector which is a kind of exterior resin component.

  The front protector described in Patent Document 1 is provided with a translucent surface-side coating layer on the surface of a component main body formed of a transparent resin and excluding a display forming portion on the rear surface of the component main body. The back surface side coating layer and the light shielding layer are laminated at the above-mentioned locations, and the light source unit for illuminating the display forming portion is provided on the back side of the component.

JP 2012-210861 A

  However, the exterior resin component described in Patent Document 1 described above is formed of a translucent resin, and most of the exterior resin components mounted on automobiles are not weather resistant and strong. In general, it is formed of a transparent carbon-containing resin. The technology of Patent Document 1 described above cannot be applied to such a non-transparent resin.

  The present invention has been made in view of the above-mentioned problems, and for automobile exterior resin parts formed of non-transparent resin, while realizing a shape, color, and material that match the owner's hobbies, An object of the present invention is to make it possible to make a light pattern appear on the front surface of an automobile exterior resin part while leaving the shape and the like intact.

  One aspect of the present invention is a non-translucent thick resin part body that forms the entire shape of the automobile exterior resin part, and a transparent or translucent resin formed at a predetermined portion of the resin part body. A light-emitting device that is disposed on the back surface side of the resin component main body, and includes a translucent part that penetrates the resin component main body on the front and back sides and an opaque coating film that covers at least the front surface of the translucent part Irradiates light toward the back surface of the light-transmitting portion, the light passes through the light-transmitting portion and is irradiated onto the back surface of the coating film, and a light pattern is formed on the front surface side of the coating film. Is a resin component for automobile exteriors.

  In another aspect of the present invention, a hole forming step for forming a hole penetrating a predetermined portion of a non-translucent thick resin component body forming the entire shape of an automobile exterior resin component on the front and back sides; A resin filling step for filling the hole with a transparent or translucent resin that is fluid and solidifying, a resin shaping step for adjusting the surface shape of the resin filled by the resin filling step, and a filling by the resin filling step. And a mounting step of attaching a light-emitting device to the back surface side of the automotive exterior resin component.

  Note that the automobile exterior resin component described above includes various aspects such as being implemented in a state of being attached to an automobile. The present invention can also be realized as a method of manufacturing the automobile exterior resin part.

  According to the present invention, characters and pictures on the surface of an exterior resin component are formed while the shape, color, material, and the like of the exterior resin component formed of a non-translucent color resin are realized while the shape and the like remain. It is possible to add a design in which a bright pattern such as

It is a figure which shows the side of the motor vehicle which attached the side sill garnish which concerns on this embodiment. It is the perspective view which expanded and showed the principal part of the side sill garnish which concerns on this embodiment. It is a figure which shows the AA cross section shown in FIG. It is a flowchart which shows the flow of the manufacturing method of a vehicle exterior resin component. It is a figure explaining the outline | summary of each process of the manufacturing method of a vehicle exterior resin component. It is a figure explaining the outline | summary of each process of the manufacturing method of a vehicle exterior resin component. It is a figure explaining the outline | summary of each process of the manufacturing method of a vehicle exterior resin component. It is a figure explaining the outline | summary of each process of the manufacturing method of a vehicle exterior resin component. It is a figure explaining the outline | summary of each process of the manufacturing method of a vehicle exterior resin component. It is a figure explaining the outline | summary of each process of the manufacturing method of a vehicle exterior resin component.

Hereinafter, the present invention will be described in the following order.
(1) Configuration of automotive exterior resin parts:
(2) Manufacturing method of automotive exterior resin parts:
(3) Summary:

(1) Configuration of automotive exterior resin parts:
FIG. 1 is a view showing a side surface of an automobile to which a side sill garnish according to this embodiment is attached. FIG. 2 is an enlarged perspective view showing a main part of the side sill garnish according to the present embodiment. FIG. 3 is a diagram showing a cross section taken along the line AA shown in FIG.

  The side sill garnish 100 shown in these drawings constitutes an automotive exterior resin component in the present embodiment. The side sill garnish 100 is an example of an exterior resin part for automobiles, and the present invention can be applied to various parts as long as it is used by being mounted outside the automobile C.

  The side sill garnish 100 is a part whose front surface can be visually recognized from the outside when attached to the automobile C, and the front surface is called a design surface. A pattern with a predetermined shape (characters “GS” in FIGS. 1 and 2) is drawn on the design surface so that light emerges at a predetermined timing. Examples of the predetermined pattern include characters and pictures.

  Hereinafter, the part where the light pattern of the predetermined shape emerges is referred to as a light emitting part P1, and the part where the light pattern does not emerge is referred to as a non-light emitting part P2. Hereinafter, an example of a specific structure of the side sill garnish 100 will be described.

  The side sill garnish 100 includes a resin component main body 10, a coating film 20, and a transparent resin part 30 as a translucent part. A light emitting device 40 is integrated with the side sill garnish 100 on the back surface of the side sill garnish 100. It is arranged.

  The resin component body 10 is made of a non-transparent resin such as a carbon-containing resin, and forms the entire shape of the side sill garnish 100. A transparent resin portion 30 is provided at a predetermined portion of the resin component body 10.

  A light emitting device 40 is disposed on the back surface side of the transparent resin portion 30 and irradiates light toward the back surface of the side sill garnish 100 at a predetermined timing.

  The transparent resin portion 30 is formed of a transparent or translucent resin and is formed so as to penetrate the resin component main body 10 on the front and back sides. For this reason, the light generated on the back surface side of the side sill garnish 100 and applied to the back surface of the transparent resin portion 30 passes through the inside of the transparent resin portion 30 and reaches the back surface of the coating film 20 described later.

  In addition, the transparent resin part 30 should just be able to make the light irradiated to the back surface of the side sill garnish 100 reach the back surface of the coating film 20, and it does not necessarily penetrate the resin component main body 10 in the front and back with a transparent or translucent resin. It is not necessary to be formed.

  For example, the transparent resin portion 30 may be formed only in a portion close to the front surface of the side sill garnish 100, and the other portions may be formed as a cavity. In this way, the transparent resin portion 30 is formed as well. The effect of this can be obtained.

  A coating film 20 is formed on the front surface of the resin component main body 10 including the formation range of the transparent resin portion 30. Although this coating film 20 is formed to include at least one layer of a coating film formed of a non-transparent paint, it is formed into a thin film that can partially transmit irradiated light at some rate. Is formed.

  Therefore, most of the light applied to the coating film 20 is reflected on the surface of the coating film 20, but part of the light is scattered inside the coating film 20 and transmitted to the opposite side. Thereby, the front surface opposite to the back surface, which is the light irradiation surface of the coating film 20, shines so as to rise in conjunction with the light emission of the light emitting device 40.

  Note that the front surface portion of the side sill garnish 100 corresponding to the formation range of the transparent resin portion 30 corresponds to the light emitting portion P1 described above, and the other portions correspond to the non-light emitting portion P2 described above.

  In addition, the coating film 20 has a color so that a gap such as a step, a color shift, and a pattern shift visible from the outer surface is not formed between the light emitting portion P1 and the non-light emitting portion P2 on the front surface of the side sill garnish 100. In any of the pattern, surface treatment, etc., it is desirable that they are formed integrally and continuously.

  The light emission timing of the light emitting device 40 can be selected in various ways. For example, the light emission device 40 can emit light in conjunction with the opening of the door of the automobile C disposed immediately above the side silgarnish 100.

  For example, by taking the power supply voltage supplied to the light emitting device 40 in parallel from the line for supplying power to the interior light of the car C, the light emitting device 40 can emit light in conjunction with the door opening of the car C. Of course, it is possible to emit light while the automobile C is traveling, or to emit light at a timing according to the operation of the passenger.

  The side sill garnish 100 described above has a structure in which the presence of the light emitting part P1 is not recognized from the outside when the light emitting part P1 is not emitting light. Therefore, when the light emitting part P1 is not emitting light, the decoration that matches the hobby preference of the owner of the car C by the surface shape, color, and pattern applied to the front surface of the side silgarnish 100, Can be realized.

  On the other hand, when the light emitting part P1 emits light, the light emitting part P1 that has not been identified by the observer as the light emitting part P1 that is a functional part different from the non-light emitting part P2 appears to light up. Therefore, the observer is surprised and moved and notices the presence of the light emitting portion P1. Thereby, by variously devising the predetermined shape of the light emitting part P1, not only the hobby preference of the owner of the car C can be satisfied, but also high appeal to the surroundings can be realized.

  In addition, the decorativeness of the light emitting part P1 is improved as the surroundings become darker, and exhibits a high appealing force to the surroundings. For example, when a design that shines with dusk appears on the design surface of the side silgarnish 100, the observer will appreciate it with surprise and excitement.

  Moreover, the surprise and impression given to the observer are further strengthened by giving a message to the shining pattern. For example, by making a shining picture into a shape that includes a message such as a proposal or thanks, the memory and heart of the observer who receives the message are impressed.

(2) Manufacturing method of automotive exterior resin parts:
FIG. 4 is a flowchart showing a flow of a method for manufacturing an automobile exterior resin part. 5-10 is a figure explaining the outline | summary of each process.

  In addition, the side sill garnish 100 before passing through each process S1-S5 shown in FIG. 4 includes the resin component main body 10 including the part in which the transparent resin part 30 mentioned above is formed in the manufacturing method demonstrated below. The whole is formed of a non-transparent carbon-containing resin in terms of weather resistance and strength.

  In addition, the front surface of the resin component body 10 is preliminarily painted with the same color as that of the mounted automobile, or in accordance with the hobby preference of the owner of the automobile.

The manufacturing method shown in FIG. 4 includes a hole forming step S1, a resin filling step S2, a resin shaping step S3, a painting step S4, and a light emitting device attaching step S5.
Hereinafter, each step will be described.

  In the hole forming step S1, a hole H is formed as shown in FIG. The hole H can be formed by cutting a range corresponding to the light emitting part P1 of the resin component body 10 from the front surface to the back surface using a processing tool T such as a drill.

  In the example shown in FIG. 5, the holes H penetrating the resin component main body 10 are formed on the front and back, but the resin component main body 10 is left so as to leave a thin film on the front surface side of the resin component main body 10. You may cut from the back side.

  The diameter of the hole H is appropriately determined according to the degree of shrinkage of the resin filled in the hole H in the resin filling step S2.

  The predetermined shape of the light emitting portion P1 may have a character edge that does not cross each other, for example, the letter O of the English letter. When the hole H is formed along the character line, a part of the character inside is cut out. May be liberated.

  In such a case, as will be described later, the part that has been released may be placed and fixed at a predetermined site when performing the resin filling step S2, etc., and in this embodiment, excavation is performed along the line of characters. To do.

  Next, in the resin filling step S2, as shown in FIG. 6, the transparent resin liquid R is filled so as to fill the hole H back. In this resin filling step S <b> 2, first, the support plate S is disposed on the back surface side of the side sill garnish 100.

  The support plate S desirably has a surface shape obtained by inverting the back surface shape before the hole forming step S1. Then, the fluid transparent resin liquid R is filled into the hole H from the front surface side of the side sill garnish 100 and solidified.

  As the fluid transparent resin liquid R, for example, a transparent or translucent heat fluid resin represented by hot melt or a two-component curable resin can be used.

  When using a hot melt, the resin is heated to a temperature equal to or higher than its melting point (for example, 100 ° C.) to make it liquid. Then, a liquid resin is injected into the hole H using an injection gun or the like while maintaining the hot melt in a liquid state using a device that maintains the resin at a constant temperature (tape heater hose or the like), and a predetermined time (for example, 3 minutes) Etc.) Leave as above. The amount of hot melt injected is set by increasing the thermal expansion volume of the hot melt.

  If the room temperature is maintained in this state, solidification of the hot melt begins as the temperature gradually decreases. When the above-mentioned predetermined free part is present in the light emitting part P1, it is embedded in the hot melt when solidification starts. As the solidification further progresses, the liquid hot melt adheres to the resin on the inner side surface of the hole H or the side surface of the predetermined portion that is free to be integrated with the resin component main body 10.

  Thereafter, the side sill garnish 100 to which the hot melt is bonded and fixed is left at a constant temperature (for example, 60 ° C.) for a predetermined time. Thereby, since the internal stress at the time of adhesion | attachment and fixation is disperse | distributed and the resin component main body 10 shrink | contracts, the side sill garnish 100 returns to an initial shape, and the shape in normal temperature is stabilized.

  Next, in the resin shaping step S3, as shown in FIG. 7, the remaining portion of the hot melt is removed to form the transparent resin portion 30. In this resin shaping step S3, the surface shape of the solidified hot melt is usually made similar to the shape of the front surface or the back surface of the side sill garnish 100 before the hole H is formed using buff B or the like. Shape it. Of course, you may shape using other tools, such as a spatula.

  Thereby, the original shape of the side sill garnish 100 can be reproduced also for the site of the transparent resin portion 30, that is, the light emitting site P1. Further, by adjusting the shape of the front surface and the back surface, the light from the light emitting device 40 can be easily transmitted.

  Next, in the coating step S4, as shown in FIG. 8, the coating P is attached to a predetermined range of the resin component main body 10 including the front surface of the transparent resin portion 30 to form a thin coating film 20. . In forming the coating film 20, it is desirable that the coating in a certain range around the front surface of the transparent resin portion 30 is once peeled off by grinding or the like, and the coating peeling part is also applied. Thereby, the boundary of the light emission site | part P1 and the non-light emission site | part P2 can be made less conspicuous.

  Further, in order not to waste the above-described dispersion of internal stress and the shrinking process of the resin parts, it is desirable to use a paint that can be dried at room temperature here. The painting referred to here includes clear painting.

  By the way, the coating is generally in a state in which color material particles such as pigments are dispersed in a transparent binder. Although the colorant particles being coated are intermolecularly bonded, their positions are fixed with a gap. A coating film in which such a coating is formed into a film has a fine gap through which some moisture passes.

  Most of the light irradiated to the coating film is reflected on the surface of the coating film, but a part of the light is reflected and scattered through such fine gaps and transparent binders between the colorant particles. While passing through the other side of the coating film. The coating film 20 according to the present embodiment is formed to have such characteristics.

  Next, in the light emitting device attaching step S5, as shown in FIG. 9, the light emitting device 40 using LEDs or the like is disposed on the back surface side of the light emitting portion P1. The light emitting device 40 is appropriately selected according to hobbies and preferences. The light quantity of the light emitting device 40 is appropriately selected within a range that does not affect the shape of the side sill garnish 100. Since the wiring of the light emitting device 40 is disposed on the back side of the side sill garnish 100, the decorativeness is not impaired. As a result, as shown in FIG. 10, when the light emitting device 40 irradiates the back surface of the side sill garnish 100, the light transmitted through the transparent resin portion 30 is irradiated to the back surface of the coating film 20. It will shine as if the front surface is raised.

(3) Summary:
The side sill garnish 100 according to the embodiment described above includes a non-translucent thick resin part body 10 that forms the entire shape of the side sill garnish 100, and a transparent or translucent resin at a predetermined portion of the resin part body 10. The resin component main body 10 includes a transparent resin portion 30 that is formed and penetrates the resin component main body 10 on the front and back sides, and an opaque coating film 20 that covers the front surface of the resin component main body 10 including the transparent resin portion 30. When the light emitting device 40 arranged on the back surface side irradiates light toward the back surface of the transparent resin portion 30, the light passes through the transparent resin portion 30 and is irradiated on the back surface of the coating film 20. A light pattern emerges on the 20 front side.

  Therefore, for the side sill garnish 100 formed of a non-transparent resin, the front surface of the automobile exterior resin component is realized while maintaining the shape, color, and material that match the taste preference of the owner while retaining the shape. It is possible to make a light pattern appear.

  Note that the present invention is not limited to the above-described embodiments, and the configurations disclosed in the above-described embodiments are interchanged with each other or the combinations thereof are changed, disclosed in the known technology, and in the above-described embodiments. A configuration in which each configuration is mutually replaced or a combination is changed is also included. Further, the technical scope of the present invention is not limited to the above-described embodiments, but extends to the matters described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Resin component main body, 20 ... Paint film, 30 ... Transparent resin part, 40 ... Light-emitting device, 100 ... Side sill garnish, P1 ... Light emission part, P2 ... Non-light emission part, B ... Buff, C ... Car, H ... Hole, P ... Paint, R ... Transparent resin liquid, S ... Support plate, T ... Processing tool

Claims (3)

A non-transparent thick resin component body that forms the entire shape of the automobile exterior resin component;
A transparent portion or a translucent resin formed in a predetermined portion of the resin component body, and a translucent portion penetrating the resin component body from the front and back;
An opaque paint film covering at least the front surface of the light-transmitting part;
With
When the light emitting device disposed on the back surface side of the resin component main body irradiates light toward the back surface of the light transmitting portion, the light passes through the light transmitting portion and is irradiated on the back surface of the coating film. An automotive exterior resin part, wherein a light pattern emerges on the front side of the coating film. A hole forming step for forming a hole penetrating a predetermined portion of the resin part main body having a light-transmitting thickness to form the entire shape of the automobile exterior resin part;
A resin filling step of filling the hole with a fluid transparent or translucent resin and solidifying it;
A resin shaping step for adjusting the surface shape of the resin filled in the resin filling step;
A painting step of painting the front surface of the resin filled in the resin filling step;
An attaching step of attaching a light emitting device to the back side of the automobile exterior resin part;
The manufacturing method of the automotive exterior resin component characterized by including.   3. The method of manufacturing an automotive exterior resin part according to claim 2, wherein in the resin filling step, the hole is filled with a transparent or translucent heat fluid resin or a two-component curable resin.

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