JP2600706Y2 - Exterior decorations for automobiles - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior decoration for an automobile, and can be used as a so-called side molding for decorating a side face of the automobile.

[0002]

BACKGROUND ART Conventionally, a gas injection molding method has been known as a method for molding a synthetic resin. This molding method has an advantage that injection molding can be performed at a relatively low pressure even for a large thin-walled or long-shaped molded product. Application is being planned. Since a gas injection hole for injecting a gas is formed in a molded product by such gas injection injection molding, when used as an exterior component, rainwater enters the inside from the gas injection hole. Need to be prevented. Therefore, a lid component that is separate from the exterior component is prepared, and the gas injection hole is closed with the lid component to prevent rainwater from entering.

[0003]

However, the use of a lid component requires a work process for closing the gas injection hole with the lid component, in addition to the work of mounting the exterior component, and thus the process of assembling the exterior of the automobile. There is a problem that increases. Also, rhino
When molding long exterior products such as domole,
The volume of the hollow part formed inside the product increases,
Since a large amount of gas will be injected into the
Long molding cycle, which is the time required to mold the product
Problem that the production efficiency of exterior parts may be impaired
There is also.

It is an object of the present invention to mount the device on a vehicle without any operation other than the mounting operation and to make the device long.
It is an object of the present invention to provide a decorative article for an automobile which does not impair the production efficiency .

[0005]

DISCLOSURE OF THE INVENTION The present invention relates to a decorative exterior article attached to an outer surface of an automobile, which is formed in a long shape by gas injection molding, and extends along the longitudinal direction thereof.
Thick part with a smaller width than the thick part
A wide thin portion is provided, and the thick portion has a hollow portion formed by gas injection injection molding, and a sticking surface to be stuck to an outer surface of an automobile , and gas injection is performed on the sticking surface.
A gas injection hole is formed by out-molding . In the above, the decorative exterior product has a substantially sectional shape.
It is formed in a “U” shape, and the thick portion is formed along the edge.
Is formed as one side of the "U" shape, and the "U" shape
And the other part having an L-shaped cross section is
Preferably, it is a thin portion.

[0006]

According to the present invention, by using a so-called double-sided tape such as a double-sided adhesive tape or a double-sided adhesive tape on the surface of an automobile body, the double-sided tape can be used for mounting the decorative external part. the gas injection holes of the decorative exterior products automatically closes, the work of non-attachment work is that Do not required. What
Even if the decorative exterior product according to the present invention is adhered to the surface of the vehicle body with a filled epoxy adhesive or the like, the gas injection hole is automatically closed, so that work other than installation work is unnecessary. What
You. It is also large enough to cover certain parts of the car.
Even if it is formed to be long,
And the weight of decorative exterior parts can be reduced.
In addition, since the thick hollow part has a small volume,
And the molding cycle is shortened.
You. Further, the thick part and the thin part are arranged side by side.
Because of the high-pressure gas injected into the hollow part of the thick part,
Decorative exterior products with good appearance quality without sink marks
Will be able to Here, the cross-sectional shape of the decorative exterior
When it is formed in a substantially “U” shape and formed along its edge
Both portions of the "U" shape are referred to as thick portions.
And the other portion of the "U" shape and having an L-shaped cross section
If the part that is shaped is a thin part, you can feel a three-dimensional feeling
To increase the apparent thickness of the decorative exterior
Even if it is set, the weight of the decorative exterior is achieved,
Thick and thin portions are adjacent to each other in the width direction, ensuring sink marks
Will be prevented, good appearance quality will be improved
Will be given to the product.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a side molding 10, which is a decorative exterior product of the present embodiment, attached to a vehicle body side surface 1 with a so-called double-sided tape 2. Side Mall 10
Is a member that is manufactured by gas injection molding and is elongated in the direction perpendicular to the paper surface. The cross section of the side molding 10 is formed in a substantially “U” shape in which the back surface (the surface on the side of the vehicle body side 1) is concave. The upper side of the "U" shape in the figure is a thick portion 11 having a large thickness, and the other L-shaped portion is a thin portion 12 having a small thickness. Where thick
The portion 11 is, as is apparent from the figure, an edge of the side molding 10.
Are formed along the width. On the other hand, the thin portion 12
It is significantly wider than the meat portion 11.

The surface of the thick portion 11 on the side of the vehicle body side 1 is a sticking surface 13 formed substantially flat. A hollow portion 14 formed by injecting a gas at the time of molding is formed inside the thick portion 11, and a gas injection hole 15 formed for injecting a gas into the hollow portion 14 is formed on the attaching surface 13. Are formed. The gas injection hole 15 is closed by a double-sided tape 2 that sticks the side molding 10 to the vehicle body side surface 1. By closing with the double-sided tape 2, the side molding 10 attached to the side surface 1 of the vehicle body of the automobile is prevented from infiltrating rainwater or the like into the hollow portion 14.

FIG. 2 shows a mold 20 for injection molding the side molding 10. The mold 20 has a cavity 21 for filling and molding a molten resin, and a mold 21 for molding the molten resin. A sprue 22 serving as a filling port, a runner 23 serving as a passage for molten resin, and a gate 24 serving as an inlet to the cavity 21 are provided. The cavity 21 has a thick part 21A having a thickness for forming the thick part 11 of the side molding 10 and a thin part 21B for forming the thin part 12 of the side molding 10. The gate 24 is a so-called submarine gate that is not directly connected to the sprue 22. As shown in FIG. 3, the mold 20 is filled with the molten resin 3, and after the filling of the molten resin 3 is started, gas is injected into the mold 20 to form a mold having a hollow portion 14 inside. A shaku side mall 10 can be obtained. Since the side molding 10 is injected with the upstream portion from the gate 24 to the sprue 22 attached similarly to the conventional product, after removing the upstream portion after molding, the side molding 10 is transported to the automobile assembly process. Is done.

According to the above-described embodiment, the following effects can be obtained. That is, the gas injection hole 15 is provided on the attaching surface 13 of the side molding 10, and the side molding 10 is attached to the vehicle body surface 1 by the double-sided tape 2 attached to the attaching surface 13.
To the gas injection hole 15
Can be automatically closed, and no operation other than the mounting operation is required.

Further, since the gas injection hole 15 is closed by the double-sided tape 2, intrusion of rainwater or the like can be prevented.
Further, since the hollow portion 14 is provided inside the side molding 10, the weight can be reduced, and the handling of the side molding 10 can be facilitated when the side molding 10 is attached to the vehicle body surface 1. Also, narrow
The thick part 11 and the wide thin part 12 are arranged side by side in the width direction.
So it is large enough to cover a given part of the car
Like this, even if it is formed long,
From this point, the side molding 10 is lightweight
And the hollow portion 14 of the thick portion 11 has a small volume.
The amount of gas injected is reduced,
In the production of the tool 10, the molding cycle can be shortened,
There is no loss in production efficiency. Furthermore, with thick part 11
It is injected into the hollow part 14 of the thick part 11 by juxtaposition with the thin part 12.
Gas pressure is applied to the molten resin forming the thin-walled part 12.
With good overall appearance quality without sink marks
Ido Mall 10 can be obtained. Also, the cross-sectional shape is
When it is formed in a "U" shape and is formed along its edge
The part of the "U" shaped side is the thick part 11,
And the other part of the "U" -shape, which has an L-shaped cross section
The thin part 12 is used for the part where it is, so you can feel the three-dimensional feeling
Like, increase the apparent thickness of the side molding 10
Also, the side molding 10 can be reduced in weight.

Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to this embodiment, and various improvements and design changes can be made without departing from the gist of the present invention. It is possible. For example, the side molding is not limited to the side molding 10 having the thick part 11 on one side edge, and as shown in FIG.
The side molding 10A provided with 11A may be used, and the cross-sectional shape of the side molding may be set as appropriate for implementation.

The means for attaching the side molding 10 is not limited to the double-sided tape, but may be a filling type epoxy adhesive or the like. However, if the double-sided tape is used as in the above-described embodiment, the curing time of the adhesive is waited. Therefore, the effect that the mounting operation can be performed quickly can be obtained.

Further, the mold for molding the side molding 10 is not limited to the one in which the molten resin filling hole also serves as the gas injection hole, and the molten resin filling hole and the gas injection hole are separately provided. May be used. The present invention is not limited to the side molding, and may be applied to other decorative exterior parts such as an emblem in which a brand name of an automobile is described.

[0015]

[Effect of the Invention] As described above, according to the present invention, work other than mounting work can be eliminated when mounting the vehicle.
In addition, even if it is long, the production efficiency is not impaired.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a side view showing a mold for molding the side molding of the embodiment.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view showing a modification of the present invention.

[Explanation of symbols]

 1 Side surface which is the outer surface of a car 10,10A Side molding as decorative exterior parts 13 Adhering surface 15 Gas injection hole

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-353408 (JP, A) JP-A-7-2031 (JP, A) JP-A-6-278550 (JP, A) JP-A-6-278550 321023 (JP, A) Fully open Hei 3-110958 (JP, U) Fully open Hei 6-39618 (JP, U) Fully open Hei 2-63255 (JP, U) Really open Showa 57-125654 (JP, U) (58) Field surveyed (Int.Cl. ⁶ , DB name) B60R 13/04 B29C 45/14

Claims (2)

(57) [Scope of request for utility model registration] 1. A decorative outer part attached to an outer surface of an automobile, which is formed to be long by gas injection molding and has a narrow thick portion extending along the longitudinal direction thereof.
A thin part with a smaller thickness than the thick part and a wider part is provided.
The thick portion has a hollow portion formed by gas injection molding.
If, application surface to be adhered to the outer surface and are of formation of the automobile
Gas is injected into the affixing surface by gas injection injection molding.
A decorative article for automobiles, characterized by having holes . 2. A decorative article for an automobile according to claim 1, wherein the cross-sectional shape is substantially U-shaped, and said thick portion is formed along an edge to form said "U". A decorative exterior part for a motor vehicle, characterized in that another part of the "U" shape, which is one side of the "U" shape, and a portion having an L-shaped cross section is the thin portion.