JPH07304402A - Molding for automobile - Google Patents

Abstract

PURPOSE:To provide a molding for an automobile having a protector capable of properly exterting its function and improving the assembling property. CONSTITUTION:A protector 11 is provided at the end section of a molding 10 installed along a window frame, and the tip lip 11a of the protector 11 is brought into elastic contact with a body 4 side forming the window frame. The protector 11 is formed into a hollow structure having a loop-like cross section, it has constant and proper rigidity, and the self-retaining property of the basic shape can be secured. It is not deformed inadvertently, and it has proper elasticity as the protector 11. The assembling property of the molding 10 to the body 4 side is improved, and a proper assembly accuracy can be maintained after assembling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mall, particularly a protector for the mall, which is laid along a window frame of a vehicle such as a passenger car.

[0002]

2. Description of the Related Art In a hard-top vehicle, for example, as shown in FIG. 5, a molding 1 is usually installed along a window frame of a body.
Has been laid. In the figure, 2 is a door body, 3 is a door glass that moves up and down from the door body 2, 4 is a front pillar,
5 is a windshield, and 6 is a roof. The molding 1 is integrally formed with a retainer 8 for a weather strip 7 capable of elastically contacting the door glass 3 as shown in FIG. A protector 9 that is elastically contacted with the pillar 4 (body side) is joined.

The protector 9 is made of a material such as rubber or vinyl chloride, and has a tapered cross-sectional shape as shown in FIG. And its tip lip 9a
However, it makes elastic contact with the front pillar 4 and the like as described above. In FIG. 7, the free state of the protector 9 is shown by a chain double-dashed line, but when elastically contacting the front pillar 4 and the like, the protector 9 is flexibly deformed as shown by a solid line.

[0004]

However, in the conventional molding 1, since the protector 9 is formed thin so as to ensure the followability with respect to the body side, when it is assembled to the body, The tip lip 9a may be caught as shown in FIG. Similarly, if the tip lip 9a is extended in order to eliminate the gap between the tip lip 9a and the body, the tip lip 9a is also likely to be caught.
Further, the thin tip lip 9a may be deformed due to environmental conditions such as temperature and light, or chemical or physical factors of the material. In this case, for example, as shown in FIG. There is a risk that the lip 9a may come off the body. The tip lip 9a vibrates to generate wind noise due to the wind pressure received when the vehicle is traveling.

On the other hand, in the case of forming the protector 9, a so-called roll / PVC extrusion technique, which is preferable in the past, has not been developed, and therefore, instead of the molding 1 shown in FIG.
In some cases, the protector 9 as shown in FIG. However, the protector 9
Had to be thick, and was not always suitable as the tip lip 9a.

Further, as shown in FIG. 11, the molding 1 is connected to the rear molding 1a so as to be integrated with the joint 1b therebetween. However, if the protector 9 cannot have a certain rigidity, there is a problem that a gap or a step S is likely to occur between the protectors 9 at the joint portion 1b.

In view of the above points, an object of the present invention is to provide an automobile molding provided with a protector that properly exhibits its function and can improve the assembling property.

[0008]

In the automobile molding of the present invention, a protector is attached to the end of the molding laid along the window frame, and the tip lip of the protector is on the body side where the window frame is to be formed. In particular, the protector has a hollow structure having a loop-shaped cross section.

[0009]

According to the present invention, the protector has a loop-shaped cross section, so that it has a certain and appropriate rigidity as the protector, and the self-holding property of its basic shape can be secured. Therefore, it does not inadvertently deform, and at the same time, it has an appropriate elasticity as a protector. As a result, the ease of assembly on the body side of the molding is improved,
Further, it is possible to maintain proper assembling accuracy after the assembling.

In the automobile mall of the present invention,
The protector is formed in a loop shape by extrusion molding from an elastic material in a roll process.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automobile mall according to the present invention will be described below with reference to FIGS.

FIG. 1 shows a main structure of a molding 10 according to this embodiment. In the drawing, an elastic protector 11 is attached to an end of the molding 10 laid along a window frame. There is. Tip lip 11a of this protector 11
Is in elastic contact with, for example, the front pillar 4 (see FIGS. 5 and 6) on the body side where the window frame is to be formed. Note that FIG.
In, the free state of the protector 11 is indicated by a chain double-dashed line.

The protector 11 has a loop-shaped cross section as shown in the drawing, that is, a hollow portion 12. By thus forming the protector 11 with a hollow structure having a loop-shaped cross section, the protector 11 has a certain and appropriate rigidity, and the protector 11 secures the self-holding property of its basic shape. Therefore, the protector 11 is not deformed carelessly, and at the same time, the protector 11 has appropriate elasticity. That is, at the time of assembling the molding 10 to the body, there is no concern that the tip lip 11a may be deformed and caught in the body, thereby improving the assembling property, and on the other hand, being elastically deformed moderately and properly on the body side. Followability is secured.

The mall 1 assembled to the body
At 0, the protector 11 makes elastic contact with the body with appropriate strength, and its deformation under environmental conditions such as temperature is suppressed as much as possible, thus ensuring proper assembly accuracy.
Maintained. Particularly, due to the wind pressure received when the vehicle is traveling, there is no danger that the tip lip 11a will float from the body and vibrate, and wind noise can be effectively prevented.

Here, an example of a method of forming the protector 11 will be described. FIG. 2 shows a configuration example of an extrusion molding die 20 for forming the protector 11 from an elastic material in a roll process. The extrusion molding die 20 includes first, second and third dies 21, 22 and 23 which are continuously provided along the roll forming movement direction B. The molding 10 is a retainer 13 integrally connected to the molding 10 (a member equivalent to the retainer 8 shown in FIG. 6).
At the same time, it is fed in the extrusion mold 20 in the direction of arrow B. The elastic material 24 (for example, vinyl chloride resin) is injected into the extrusion molding die 20 through the injection port 25.

The second mold 22 has a mold 26 for molding the protector 11 in a part thereof. This mold 26
Is provided with protrusions 26a and 26b corresponding to the hollow portion 12 of the protector 11 as shown in FIG.
A notch 27 corresponding to the loop-shaped part of the protector 11 is formed in the.

Now, in the roll process, the extrusion mold 2
When the molding material 10 is fed in the direction of the arrow B and the elastic material 24 is injected from the injection port 25 in FIG.
As shown in (a), the protrusion 26a forms a part of the protector 11 in a loop shape. Then, the elastic material 24 is injected into the notch 27 at the protrusion 26b to form the entire loop-shaped circumference of the protector 11 as shown in FIG. 4B. Furthermore the third type 23
At the end, as shown in FIG.
The protector 11 having a loop-shaped cross section is formed by the roll extrusion molding.

[0018]

As described above, according to the present invention, in the automobile mall, the wind noise due to the protector is eliminated when the vehicle is running to improve the quietness and improve the workability of assembling to the body. At the same time, the proper function of the protector can be exerted by eliminating the assembly variation.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part in an embodiment of an automobile molding according to the present invention.

FIG. 2 is a perspective view showing a schematic configuration example of an extrusion molding die for forming the protector for the molding for automobiles of the present invention.

FIG. 3 is a perspective view of a main part of the extrusion molding die shown in FIG.

FIG. 4 is a cross-sectional view of an essential part showing a molding step of the protector for an automobile molding of the present invention.

FIG. 5 is a partial perspective view of a vehicle related to a conventional automobile molding.

6 is a cross-sectional view taken along the line AA of FIG.

FIG. 7 is a sectional view of a main part of a conventional automobile molding.

8 is a cross-sectional view of a main part showing a wound state in the protector of the molding shown in FIG.

9 is a cross-sectional view of essential parts showing a state in which the protector of the molding shown in FIG. 7 is lifted up from the body.

FIG. 10 is a cross-sectional view of a main part of another conventional automobile molding.

FIG. 11 is a partial perspective view showing a joint portion in a conventional automobile molding.

FIG. 12 is a partially enlarged perspective view showing a joint portion in a conventional automobile molding.

[Explanation of symbols]

 4 Front Pillar 10 Mold 11 Protector 11a Tip Lip 12 Hollow Part 13 Retainer 20 Extrusion Mold 21 First Mold 22 Second Mold 23 Third Mold 24 Elastic Material 25 Pouring 26 Mold 26a, 26b Projection 27 Notch

Claims (1)

[Claims] 1. An automobile molding in which a protector is attached to an end of a molding laid along the window frame, and a tip lip of the protector is elastically contacted with a body side on which the window frame is to be formed. An automobile molding characterized in that the protector has a hollow structure having a loop-shaped cross section.