JP2865437B2 - Molding - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative molding obtained by integrally extruding an edge formed of another member on both sides of a decorative body extruded so as to be exposed to the outside. About.

[0002]

2. Description of the Related Art In general, in various vehicles such as automobiles, ships, and the like, long moldings are widely used as decorative materials in order to improve aesthetic appearance and the like. The decorative molding is formed so that one surface of the decorative body is exposed to the outside, and an extruded product is conventionally used in many cases.

In recent years, in order to enhance the decorativeness of a molding made of an extruded product, for example, Japanese Patent Application Laid-Open No. 60-19962.
As disclosed in Japanese Patent Application Laid-Open No. 9-209, there has been proposed an apparatus in which a molding width of a molding is changed in a longitudinal direction by moving a molding die of an extrusion molding machine. According to such uneven width molding, the visible width can be changed, and the decorative trimming function can be improved.

[0004]

However, in such a conventional molding, there is a problem that the molding main body is formed of a simple integral body, and thus the decorativeness and durability are not yet sufficient. On the other hand, while constituting a different member complexly, those to vary the molding width of the molding in the longitudinal direction, but is proposed in JP 63-2425 2 6 No. etc., by cutting means, etc. It requires many complicated processing steps.

[0005] The real HirakiAkira 61-62099 No. Maikurofu
Irumu, real-Open 2-29719 Patent microfilm, are in the real <br/> Unexamined 2-42090 Patent microfilm
That way, the two types of synthetic resins each other incompatible integrated through the bright tape, decorative moldings by exploiting the advantages of each of the synthetic resin, that so as to improve the durability Has also been proposed. However, in this case, the molding width is constant in the longitudinal direction, and at that point, the decorativeness is not sufficient.

Further, as described in JP-A-48-73480, an end of a plastic margin band is
Although there has been proposed a type in which a predetermined molding process is performed by performing a cutting step or an adhesive step, a line for cutting and bonding is left at a terminal portion, so that the appearance is not good, and the reliability of the bonded portion is not improved. There is also a problem that the properties may be lacking, and the number of steps is increased. A similar problem occurs when a terminal shaping process disclosed in, for example, Japanese Patent Application Laid-Open No. 54-11977 is applied to this device.

[0007] Furthermore, there is a decorative body described in JP-A-60-125632 in which a desired shape is processed by using a blow mold. However, when this is applied to a long molding, However, there is a problem that the mold and the molding machine have to be increased in size, and the decorative body itself must be separately molded in advance, so that the burden of the mold cost and the molding cost increases.

Accordingly, an object of the present invention is to provide a molding having a simple structure and good decoration and design.

[0009]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 comprises a long decorative body extruded so that a predetermined surface is exposed to the outside, and a decorative body of the decorative body. In a molding integrally provided with a long edge body extruded along both sides, the decorative body has a molding width of an exposed surface in a direction orthogonal to a longitudinal direction of the decorative body, Along with the vanishing portion that is narrowed along the longitudinal direction, the both edge bodies have a configuration in which, at the vanishing portion of the decorative body, a fusion portion that is formed by merging the two edge bodies together is provided. Have.

According to a second aspect of the present invention, in the molding according to the first aspect, a plurality of disappearing portions of the decorative body are provided in a longitudinal direction of the decorative body, and a plurality of decorative portions are arranged side by side. At the same time, between the disappearing parts of each decorative body,
It has a configuration in which the fused portion of the edge is formed over a predetermined length.

[0011]

In each of the means having the above construction, the point that the disappearing portion is formed while the forming width of the decorative body is changed along the longitudinal direction, and the both edge members attached to both sides of the decorative body are provided. In the point where the fused portion is provided, the change in the appearance of the molding, that is, the decorativeness is improved.

In particular, when the fused portion of the edge is formed over a predetermined length, the appearance of the molding is greatly changed, and the decorativeness is further improved.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. The molding 1 shown in FIG.
It has a decorative body 11 formed in a long shape, and edges 12 and 13 formed along both sides of the decorative body 11 integrally. The decorative body 11 is formed by, for example, extruding a red PVC resin material, and is shown in FIGS. 2 and 3.
As shown in the figure, the cross section orthogonal to the longitudinal direction has a rectangular shape, and the upper surface in the figure is exposed to the outside. Each of the edge members 12 and 13 is formed by, for example, extruding a black PVC resin material and has a trapezoidal cross section having an inclined side surface on one side.

Further, the molding width of the exposed surface of the decorative body 11 in the direction orthogonal to the longitudinal direction is changed along the longitudinal direction. That is, at the position shown in FIG. 2, the molding width of the exposed surface of the decorative body 11 is set to “a”, and after a certain length of continuous molding is performed at the molding width a, the curved taper is formed. The molding width is narrowed so as to form a shape. For example, at the position shown in FIG. 3, the molding width of the exposed surface of the decorative body 11 is “a ′” ( a ′ <
a ) is set.

The total molding width of the molding 1, that is, the width obtained by adding the molding width of the decorative body 11 and the molding widths of the edges 12 and 13 also corresponds to the change in the molding width of a to a 'in the decorative body 11. Has been changed. That is, at the position shown in FIG. 2, the entire molding width of the exposed surface of the molding 1 is set to “b”, and after a certain length of continuous molding is performed at the molding width b, a curved taper is formed. The entire molding width of the exposed surface is narrowed so as to form a shape. For example, at the position shown in FIG. 3, the entire molding width of the exposed surface of the molding 1 is set to “b ′” ( b ′ <b ). At this time, the molding width of the edge bodies 12 and 13 themselves is kept constant along the longitudinal direction.

Further, a vanishing portion 11a is formed at the rear end of the narrowed area of the decorative body 11. In the vanishing portion 11a, the decorative body 11 is interrupted, and the edge portions 12, 13 are joined together to form a fusion portion 14. The melting portion 14 of the both edge members 12 and 13 is continuously provided so as to extend linearly from the disappearing portion 11a of the decorative body 11, and has a transverse sectional shape of:
As shown in FIG. 4, both edges 12 and 13 are trapezoidal.

As described above, in the molding 1 according to the present embodiment, the disappearing portion 11a is formed by changing the forming width of the decorative body 11 along the longitudinal direction, and both sides of the decorative body 11 are formed. Both edges 1 attached
At the point where the fusion parts 14 are provided between the two parts, the variability in the appearance of the molding 1, that is, the decorativeness is improved. In particular, in this embodiment, the decorative members 11 and 13 having a fixed width are provided in different colors on the side portions of the decorative member 11, so that the decorativeness of the molding 1 is very high.

The die of an extrusion molding apparatus for molding such a molding 1 will be described below. As shown in FIGS. 5 to 7, a main flow path 23 for feeding the decorative body 11 described above is linearly formed in a housing of the fixed die 21 forming a box-shaped main body. I have. The red PVC resin material sent from the supply port 23a provided on the inlet side of the main flow path 23 is supplied to the nozzle section 23 on the outlet side.
b to be extruded in the above-described rectangular cross-sectional shape. Also, on the side of the main flow path 23,
The sub-flow paths 24 and 25 are provided side by side, and
A supply port 24a is opened at the side of the housing.
Then, the black PVC resin material sent from the supply port 24a is extruded in the above-described trapezoidal cross-sectional shape through the nozzle portions 24b and 25b on the outlet side in the sub-flow paths 24 and 25. ing.

The main flow path 23 and the sub flow paths 24, 2
5 is provided on the movable die 22. The movable die 22 is a fixed die 2
The movable die 22 is arbitrarily moved through a connecting rod 27 protruding from a side of the movable die 22 with respect to one housing. I have. The housing of the movable die 22 is formed with a wall surface 22a that forms one half of the main flow passage 23, and is fitted to a wall surface 21b formed on the housing of the fixed die 21 so as to face the main flow passage 23. 23 are configured. Through the movement of the movable die 22, the passage cross-sectional area of the main flow passage 23 is adjusted. For example, FIG. 5 shows a state in which the movable die 22 is moved to a position where the main flow path 23 is fully opened, and the movable die 22 is moved from the position shown in FIG. 5 to the position shown in FIG. When moved, the main flow path 23
Is narrowed by the amount of movement of the movable die 22, and is made half-open.

A diverting piece 22b is provided so as to be continuous from the wall surface 22a of the movable die 22 to the lower side in FIG. The diverting piece 22b divides the resin material sent from the supply port 23a, and divides the resin material between the flat surface on the main flow path 23 side and the flat surface on the housing side of the fixed die 21. Having a flat surface. On the other hand, corresponding to the shunt piece 22b, the housing surface of the fixed die 21 includes a shunt channel 2 opened and closed by the shunt piece 22b.
6 is open. As shown in FIGS. 7 and 10 in particular, the branch channel 26 has an opening to the main channel 23 side, and extends from the opening in the housing of the fixed die 21 in a substantially L-shape. It is open to the outside,
Excess resin material is discharged in the main flow path 23.

Further, the housing of the movable die 22 is provided with a sub flow path 25 on one side. As shown in FIG. 6 in particular, the auxiliary channel 25 is
The other sub-flow path 24 provided on one side communicates with each other via an arch-shaped flow path. A fixed amount of resin material is constantly extruded from these two sub-flow paths 24 and 25.

As shown in FIGS. 11 to 13, when the movable die 22 is moved to the left side in the drawing, the main flow path 23 is fully closed and the extrusion of the decorative body 11 is stopped. Extrusion of both edges 12, 13 is continued.

In the die of such an extrusion molding apparatus,
If the extrusion molding is performed while appropriately moving the movable die 22, the molding 1 as described above, that is, the decorative body 11 having the disappearing portion while the molding width is changed along the longitudinal direction, and the melting portion 14 with a constant width are formed. The provided edges 12, 13 are extruded in a series easily and reliably.

Next, in the molding 3 according to the embodiment shown in FIG. 14, a plurality of decorative bodies 31 are provided along the longitudinal direction. The disappearing portions 3 provided on the decorative bodies 31, 31 adjacent in the longitudinal direction, respectively.
The parts 1a and 31a are arranged so as to face each other at a predetermined interval, and a fusion part 34 of the edges 32 and 33 is formed over a predetermined length in a portion between the disappearing parts 31a and 31a.

In the molding 3 in which the fusion parts 34 of the edge members 32 and 33 are formed over a predetermined length as in this embodiment, the change in appearance is made stronger than that in the above-described embodiment, and thus the decorativeness is further improved. Is improved.

[0026]

As described above, according to the present invention, the vanishing portion is provided while changing the molding width of the decorative body along the longitudinal direction, and the melting of the both edge bodies attached to the side of the decorative body is performed. Since the parts are provided, it is possible to easily and reliably obtain a molding having a simple structure and good decorativeness and design.

In particular, according to the decorative body provided with a plurality of vanishing portions, and between the vanishing portions, a fused portion of the edge is formed over a predetermined length, so that the decorativeness and design can be further improved. Can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective explanatory view showing a molding structure according to an embodiment of the present invention.

FIG. 2 is a transverse sectional view taken along the line AA in FIG.

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

FIG. 4 is a cross-sectional view taken along the line CC in FIG.

FIG. 5 is an explanatory horizontal sectional view showing an example of the molding extrusion molding apparatus shown in FIG. 1;

FIG. 6 is a horizontal sectional view taken along line DD in FIG. 5;

FIG. 7 is a transverse sectional view taken along the line EE in FIG. 6;

FIG. 8 is an explanatory horizontal sectional view corresponding to FIG. 5 and showing a half-open state after the die is moved.

FIG. 9 is a cross-sectional view corresponding to FIG. 6, showing a half-open state after the die is moved.

FIG. 10 is a cross-sectional view corresponding to FIG. 7, showing a half-open state after the die is moved.

FIG. 11 is a horizontal cross-sectional explanatory view corresponding to FIG. 5 and illustrating a fully closed state after the die is moved.

FIG. 12 is a cross-sectional view corresponding to FIG. 6, showing a fully closed state after the die is moved.

FIG. 13 is a cross-sectional view corresponding to FIG. 7, showing a fully closed state after the die is moved.

FIG. 14 is an external perspective explanatory view showing a molding structure according to another embodiment of the present invention.

[Explanation of symbols]

 1,3,4 Molding 11,31 Decorative body 12,13,32,33 Edge body 11a, 31a Disappearance part 14,44 Fused part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-38023 (JP, A) JP-A-54-99163 (JP, A) JP-A-2-37055 (JP, A) JP-A 63-38055 141849 (JP, A) JP-A-60-199629 (JP, A) JP-A-4-357100 (JP, A) JP-A-4-64424 (JP, A) JP-A-55-46950 (JP, A) Japanese Utility Model Showa 63-119450 (JP, U) Japanese Utility Model Showa 57-37650 (JP, U) Japanese Utility Model Showa 60-175622 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B29C 47/00-47/96 B60R 13/04

Claims (2)

(57) [Claims] 1. A long decorative body extruded so that a predetermined surface is exposed to the outside, and a long edge body extruded along both sides of the decorative body. In the molding provided integrally with the decorative body, the decorative body includes a vanishing portion formed by narrowing a molding width of an exposed surface in a direction orthogonal to a longitudinal direction of the decorative body along the longitudinal direction, A molding characterized in that the edge is provided with a fusion part formed by integrally joining the two edges together at a disappearing portion of the decorative body. 2. The molding according to claim 1, wherein a plurality of decorative portions are provided in the longitudinal direction of the decorative body, and a plurality of decorative portions are juxtaposed. A molding characterized in that a molten portion of an edge is formed over a predetermined length between two members.