JPH07291055A - Weather strip for automobile - Google Patents

Abstract

PURPOSE:To prevent the peeling of adhesion on the outside end of a base bottom part in a weather strip the base bottom part of which is stuck to a door opening edge laid along the roof side of an automobile by a pressure sensitive adhesive double coated tape. CONSTITUTION:In a weather strip having a hollow body constituted by a base bottom part 31, inside and outside side walls 32a, 32b, and a seal wall 33, the base bottom part 31 being stuck to a door opening edge 1 by a pressure sensitive adhesive double coated tape 6, the connecting part 321 of the outside side wall 32b with the base bottom part 31 is positioned closer to the center of the base bottom part 31 than the outside end part 61 of the pressure sensitive adhesive double coated tape 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip attached to a door opening edge along a roof side of an automobile.

[0002]

2. Description of the Related Art As shown in FIG. 3, a weather strip 3 is attached to a door opening edge 1 of an automobile from a front side to a rear side in series, and a door glass 2 is opened when a sashless door is closed. It is designed to seal the upper edge.

Conventionally, this type of weather strip has been fitted and held by a retainer mounted along the edge of a door opening. However, recently, in order to reduce the number of parts and the cost by omitting the retainer, a means for attaching the weather strip to the door opening edge with a double-sided adhesive tape has been adopted.

FIG. 4 shows a typical example thereof (actual Kaihei 1-111211).
No. 0), the weather strip 3 has a base 31.
The inner and outer side walls 32a and 32b and the seal wall 33 have a substantially hollow hollow cross section, and the base 31 is attached to the mounting surface of the door opening edge 1 via the double-sided adhesive tape 6. There is. In the figure, 4 is a roof side molding that covers the weather strip 3 from the outside, and 7 is a weather strip 3
Is an opening trim assembled to the flange 11 of the door opening edge 1 so as to cover the inside from the inside.

[0005]

However, in the mounting structure of the weather strip 3 using the double-sided adhesive tape 6 as described above, the outer edge portion 61 of the double-sided adhesive tape 6 on the vehicle exterior side.
Therefore, peeling between the door opening edge 1 and the base portion 31 of the weather strip 3 may progress.

An object of the present invention is to provide a weather strip that is free from such peeling.

[0007]

The inventor has found that when the door is closed, particularly when the door is strongly closed, the side wall 32b of the weather strip 3 outside the vehicle is pulled by the door glass 2 toward the inside of the vehicle together with the seal wall 33. As a result, it was noted that a force for rotating the base portion 31 to which the root portion of the side wall 32b is connected in the direction of pulling it away from the door opening edge 1 acts on the vehicle outer end, and the above peeling occurs by repeating this. .

Therefore, the present invention, as illustrated in FIG.
The base 31, the inner and outer side walls 32a and 32b, and the seal wall 33 form a hollow body, and the base 31 has the double-sided adhesive tape 6
In the weather strip 3 attached to the door opening rim 1 via the connecting portion 321 to the base portion 31 of the side wall 32b on the vehicle outer side, the connecting portion 321 to the center of the base portion 31 of the double-sided adhesive tape 6 is more than the end portion 61 on the vehicle outer side. The feature is that it is located nearer.

[0009]

Since the side wall 32b on the outer side of the vehicle is connected to the center of the base portion 31, even if the side wall 32b is pulled toward the inner side of the vehicle, almost no force acts to incline the side portion 32b to the base portion 31 and the above-mentioned peeling occurs. Does not happen.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in FIG. 1, a weather strip 3 is a hollow body composed of a base portion 31, a side wall 32a on the vehicle interior side, a side wall 32b on the vehicle exterior side, and a seal wall 33,
Obtained by integral extrusion molding.

The base portion 31 is thick and is made of solid rubber as a whole, and the side wall 3 made of sponge rubber is provided at the end portion on the inside of the vehicle.
2a is connected. A hollow portion is formed on the side wall 32a. The root portion of the side wall 32b on the vehicle outer side is connected to the vehicle outer side position slightly from the center of the base portion 31 in the width direction. In the side wall 32b, a root portion 321 which is a connecting portion extends in the vehicle exterior direction along the surface of the base portion 31, and a wall portion at the tip of the side wall 32b has an arc shape that bulges outward, and the root portion 321 is made of solid rubber.
The wall portion is made of sponge rubber. And both side walls 32
The tips of a and 32b are connected by a sponge rubber seal wall 33.

The weather strip 3 has a base portion 3
1 is attached and fixed to the attachment surface of the door opening edge 1 through the double-sided adhesive tape 6 over almost the entire width.

A roof side molding 4 for covering the weather strip 3 is attached to the outer end of the door opening edge 1, and the side wall 32b of the weather strip 3 is attached to the inner surface of the lower end thereof.
And the connecting portion of the seal wall 33 are in contact with each other. An opening trim 7 is attached to the flange 11 protruding inward of the door opening edge 1, and the side wall 32a of the weather strip 3 is attached.
It is in contact with the lip that extends from the tip of the.

In the above structure, when the door is closed, the door glass 2 is directed from the direction of the arrow B to the seal wall 3 of the weather strip 3.
It is pushed into 3, and once overstrokes, it returns to the normal closed position. When the door is strongly closed, the overstroke is large, and the side wall 32b is pulled inward by the seal wall 33. This force acts on the base portion 31 from the root portion 321, but since the root portion 321 is connected to the base portion 31 at a position substantially central to the inside of the end of the double-sided adhesive tape 6 on the vehicle outer side, the base portion 321 is connected. At the outer edge of 31, the door opening edge 1
The force in the direction of pulling away from is hardly applied. Therefore,
The strong closing of the door does not cause peeling of the adhesive on the outer end of the double-sided adhesive tape 6.

In particular, by forming the base portion 321 to extend outward along the base portion 31, it is possible to further reduce the influence of the pulling force acting on the side wall 32b on the base portion 31.

FIG. 2 shows another embodiment of the present invention. In this embodiment, the base portion 31 of the weather strip 3 has double-sided adhesive tapes 6A and 6B on the outside and inside of the vehicle, respectively.
Is attached to the door opening edge 1, and the base portion 31 is fixed to the opening edge 1 by the clip 8 at the center. Then, the root portion 321 of the side wall 32b on the vehicle outer side is connected to the base portion 31 at a position close to the clip stop portion. The other structure is substantially the same as the previous embodiment.

In this embodiment, the double-sided adhesive tape 6 on the outside of the vehicle is used.
The peeling prevention effect of A is further enhanced.

[0018]

As described above, according to the present invention, even when the automobile door is repeatedly strongly closed, the double-sided adhesive tape for attaching the weather strip to the door opening edge does not peel off. .

[Brief description of drawings]

FIG. 1 is a sectional view of the first embodiment of the present invention taken along the line AA of FIG.

FIG. 2 is a sectional view of the second embodiment of the present invention taken along the line AA of FIG.

FIG. 3 is a side view of an automobile to which the present invention is applied.

FIG. 4 is a sectional view of a conventional weather strip in a mounted state at a position along line AA in FIG. 3.

[Explanation of symbols]

 1 Door opening edge 2 Door glass 3 Weather strip 31 Base part 32a Car interior side wall 32b Car exterior side wall 321 Connection part to the base part 33 Seal wall 6,6a, 6b Double-sided adhesive tape 61 Car exterior end part 8 Clip

Claims (1)

[Claims] 1. A weather strip attached to a door opening edge along a roof side of an automobile, the base portion being fixed to the door opening edge, and being connected to a vehicle outer side portion and a vehicle inner side portion of the base portion and facing each other. In a weather strip in which a hollow body is formed by the side wall and a seal wall connecting the ends of both side walls, and the base portion is attached to the door opening edge via a double-sided adhesive tape, the base portion of the side wall outside the vehicle Connection to
A weather strip for an automobile, characterized in that it is located closer to the center of the base than the end of the double-sided adhesive tape outside the vehicle.