JPH08119044A - End part of molding - Google Patents

Abstract

PURPOSE: To form the end part of a molding with less labor and economically. CONSTITUTION: In the cut end of a molding of which section is formed in uniform shape by coating a resin material 4 laminatedly on a core metal 2, the cut end of the resin material is extended slightly from that of the core metal, and the extended part of the resin material 4a is heated and folded so as to attach it to the cut end of the core metal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mall mounted on an automobile or the like, and more particularly to the structure of its terminal portion.

[0002]

2. Description of the Related Art Various moldings are mounted on an automobile at various places. For example, as shown in FIG.
Inside the inside is a mall as a weather strip inner
Is attached.

The molding used in this way is manufactured in advance to have a proper length, and is cut into a specific length according to the mounting location for use.

At this time, the cut end portion becomes the end portion of the molding as it is. However, if this end portion is left as it is, only the core metal 2 (see FIG. 8) looks shining and the appearance is spoiled, so that the cut end surface is A black paint may be applied, or the cut end surface of the cored bar 2 may be rusted so that an appropriate rust countermeasure is taken to prevent it. Or, as shown in FIG. The cap-shaped terminal protector 3 which is supposed to be covered is attached.

[0005]

The terminal portion of the mall described above is uneconomical due to the labor and cost involved in manufacturing, and especially when the terminal protector 3 is attached, the trailing edge line s is It appears in the middle of the molding in the longitudinal direction and spoils the appearance. An object of the present invention is to provide a terminal unit of a mall that can solve such problems.

[0006]

In order to achieve the above object, the first aspect of the present invention is a cutting end of a molding in which a resin material is applied to a core metal in layers to form a uniform cross section. In the above, the cut end of the resin material is slightly overhanged from that of the cored bar, and the protruding resinous material portion is bent and formed by heating and adhered to the cut end of the cored bar. .

According to this, the resin material covers the cut end of the cored bar, so that neither painting nor rust measures are required.

In the present invention, when the cut end of the resin material is slightly overhanged from that of the cored bar, a specific portion in the longitudinal direction of the cored bar of the molding is cut out by an appropriate length, and this cutout point It is preferable to cut the middle part of the length in the width direction. According to this, one core metal cutting process can form two end portions.

According to a second aspect of the present invention, in a cutting end of a molding having a uniform cross section in which a resin material is applied in layers on the upper surface of a cored bar, the cutting end of the resinous material is more than that of the cored bar. Slightly overhang, bend this resin material part and apply it to the cut end of the core metal, and at the inner surface of the bent resin material part, the tip of this resin material part and the core metal It is characterized by a structure in which a resin material is injection-molded along the outer surface in the width direction of the molding between the lower outer surface and the outer surface to be integrated.

According to this, the point that the resin material covers the cut end of the core metal is the same as the first invention, but in the present invention,
The resin material injection-molded at the tip of the bent resin material holds the cut end of the cored bar, thereby effectively increasing the rigidity of the cut end of the molding.

According to a third aspect of the present invention, a core metal is formed by forming a notch of an appropriate size by leaving a part of the band material at a specific position in the longitudinal direction of the core metal band material, and forming the core metal entirely. The molding is characterized in that the molding is formed by layering a resin material on the periphery and the notch of the molding is cut in the width direction.

A part of the cored bar left when the notch is provided is exposed at the cut end of the molding, but the cored bar is not exposed at the part that affects the appearance of the cut end.

[0013]

1 is a sectional view showing a state in which the widthwise center of a molding according to a first embodiment of the present invention is cut in the longitudinal direction, FIG.
FIG. 4 is a cross-sectional view showing a terminal portion after cutting the molding and performing a required process.

As shown in the figure, the molding m used in the present embodiment comprises a strip-shaped plate-shaped core metal 2 and a resin material 4 which is layered on the upper surface of the core metal 2.

This molding m is generally manufactured by extrusion molding so that the resin material 4 is continuously applied to the upper surface of the cored bar 2.

In carrying out the present invention, for example, as shown in FIG. 1, for example, a specific portion in the longitudinal direction of the cored bar 2 of the molding m is cut by an appropriate length s with a lute, etc. The central position p is cut in the width direction.

As a result, the two molding parts m after cutting
1 and m2 are in a state in which the cut end of the resin material 4 is slightly overhanging than that of the core metal 2.

Thereafter, the resin material portion 4a overhanging at each molding portion m1 or m2 is heated to be bent and formed as shown in FIG. 2 and attached to the cut end of the cored bar 2.

The end portion of the molding thus formed is such that the cut end of the cored bar 2 is covered with the resin material 4 of the molding m so that the cored bar 2 does not appear on the end face of the terminal part. The terminal processing and the terminal protector 3 are unnecessary.

FIG. 3 is a sectional view showing a state in which a terminal portion of a molding according to a second embodiment of the present invention is vertically cut. This embodiment will be described below with reference to this drawing.

In some cases, the rigidity of the end portion of the molding m may not be obtained in the structure of the above embodiment because the core metal 2 is thin or the layer of the resin material 4 is thin.

In such a case, the cut length s of the above-mentioned embodiment is not increased to some extent, the length center position p of this cut portion is cut in the width direction as in the above, and the resin material continuously bulged out. The portion 4a is bent and formed by heating, and the lower surface side is attached to the cut end of the cored bar 2. Then, on the inner surface of the bent resin material portion 4a, between the tip of the resin material portion 4a and the outer surface on the lower side of the cored bar 2, a resin material 5 of the same type or different type is provided along the outer surface of the cored bar 2. Injection molding in the width direction of the molding m and integrates it with the previous resin material portion 4a.

According to this, the resin material 5 injection-molded at the tip of the bent resin material portion 4a holds the cut end of the cored bar 2 and the rigidity of the terminal portion of the molding m is effective. Will be increased to.

FIG. 4 is a perspective view showing a core metal of a molding according to a third embodiment of the present invention, FIG. 5 is a view showing a molding formed by coating a resin material all around the core metal, and FIG. 6 is a diagram showing a terminal unit of the mall according to the embodiment, and the present embodiment will be described below with reference to these drawings.

In this embodiment, after or before forming the core metal strip 21 having a uniform cross section, a part of the strip 21 is formed at a specific position in the longitudinal direction thereof as shown in FIG. Required core metal 2 by providing notch 6 of appropriate size leaving a
To form.

Next, a resin material 4 is layered on the core metal 2 by extrusion molding or the like to form a required molding m.

After that, an appropriate position in the longitudinal direction of the notch 6 portion of the molding m is cut in the width direction,
As a result, the terminal portion of the mall m as shown in FIG. 6 is formed.

According to this, a part a of the core metal 2 left when the notch 6 is formed in the cut end face m1 which is the end face of the end portion.
However, by appropriately designing the size and position of the notch 6, it is possible to prevent the situation where a part a of the cored bar 2 is exposed at a portion that affects the appearance of the end face m1. That is, the end portion of the molding m can be regarded as the one in which the cut end surface of the cored bar 2 is covered with the resin material 4 in practice.

[0029]

According to the present invention configured as described above, since the cut end surface of the cored bar is covered with the resin material of the molding itself, it is not necessary to carry out the conventional black coating process, rust preventive process or terminal protector mounting. It will be labor-saving and economical.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a widthwise center of a molding according to a first embodiment of the present invention is cut in a longitudinal direction.

FIG. 2 is a cross-sectional view showing a terminal portion after cutting the molding and performing a required process.

FIG. 3 is a cross-sectional view showing a state in which a terminal portion of a molding according to a second embodiment of the present invention is cut in a longitudinal direction.

FIG. 4 is a perspective view showing a core metal of a molding according to a third embodiment of the present invention.

FIG. 5 is a view showing a molding formed by coating a resin material on the entire circumference of a concentric bar.

FIG. 6 is a view showing a terminal part of the mall according to the embodiment, in which the xx part of FIG. 5 is cut.

FIG. 7 is a view showing an example of use of a mall, which is related to an inner surface of a door of an automobile.

FIG. 8 is a diagram of a conventional example showing a terminal portion of a molding in which a terminal protector is attached to a cut end of a weather strip inner attached to a door of an automobile.

[Explanation of symbols]

 a part of core metal m molding p mid-length of cut location s length of cut location 2 core metal 4 and 5 resin material 4a and 4b resin material portion 6 notched

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location // B29L 31:30 (72) Inventor Kazumasa Ohashi 1-5100 Nishi-Ebara-cho, Ihara Katayama Industrial Stock Association In-house (72) Inventor Yukio Hashimoto 1-5100 Nishi-Ebara-cho, Ibara-shi Katayama Kogyo Co., Ltd. In-house

Claims (4)

[Claims] 1. A cutting end of a molding in which a resin material is applied to a core metal in a layered manner to have a uniform cross section, and the cutting end of the resin material is slightly overhanged from that of the core metal. A terminal portion of a molding, characterized in that the protruding resin material portion is bent and formed by heating and adhered to a cut end of a cored bar. 2. A molding in which a resin material is applied in a layered manner on the upper surface of a cored bar to have a uniform cross section, and a specific part in the longitudinal direction of the cored bar is cut off by an appropriate length, and this cut out part Cut the middle part of the length in the width direction so that the cut end of the resin material is slightly overhanging than that of the cored bar, and this overhanging resin material part is bent and formed by heating. A terminal portion of a molding characterized by a structure in which a cut end of a core metal is attached. 3. At the cut end of a molding having a uniform cross section formed by applying a resin material in layers on the upper surface of the core metal, the cut end of the resin material overhangs slightly more than that of the core metal. Then, the protruding resin material portion is bent and formed by heating to adhere to the cut end of the core metal, and at the inner surface of the bent resin material portion, the tip of the resin material portion and the lower side of the core metal A terminal portion of the molding characterized by a structure in which a resin material is injection-molded in the width direction of the molding along the outer surface to be integrated with the outer surface. 4. A core metal is formed by forming a notch of an appropriate size by leaving a part of the band material at a specific position in the longitudinal direction of the core metal band material, and forming a layered resin material on the core metal. An end portion of a mall, which is characterized by a structure formed by cutting the position of the cutout of the mall in the width direction, which is not a worn mall.