JPH07329579A - Weatherstrip for automobile - Google Patents

Abstract

PURPOSE:To improve the adhesive strength of a weatherstrip bonded to the door opening edge of an automobile by a double-side adhesive tape. CONSTITUTION:In a hollow weatherstrip 4 with a base bottom part 41 bonded to the door opening edge 2 of an automobile through a double-side adhesive tape 5, bridges 45a, 45b for respectively connecting the interior side of a seal wall 44 from the pressing place of a door glass 3 to the exterior side end part and interior side end part of the base bottom part 41 are provided in the hollow part, and pressing force from the seal wall 44 side at the bonding time is made act upon the base bottom part 41 through the bridges 45a, 45b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for an automobile, and more particularly to a weather strip attached to a door opening edge.

[0002]

2. Description of the Related Art As shown in FIG. 3, a weather strip 4 which is pressed by an upper edge of a door glass 3 when the door is closed is attached to a door opening edge 2 along a roof side 1 of a vehicle body.

As a weather strip, a hollow one is often used, and conventionally, a mounting structure which is fitted to a retainer provided at a door opening edge has been generally used. However, recently, in order to omit the retainer and simplify the mounting structure,
Means have been taken to adhere the base of the weatherstrip to the door opening edge using double-sided adhesive tape.

By the way, in the adhesive type weather strip, the base is adhered by pressing the base from the side of the seal wall facing the base against the opening edge of the door through the double-sided adhesive tape, but the pressing force is applied to the base. If it does not work sufficiently, peeling of the adhesive may occur. In particular, adhesive peeling is likely to occur at the widthwise edge of the double-sided adhesive tape.

[0005]

Therefore, as shown in FIG. 4, side walls 4 of the weather strip 4 on the vehicle exterior side and the vehicle interior side are provided.
By forming 2 and 43 together with the base portion 41 with solid rubber, the pressing force from the seal wall 44 strongly acts on both end edges of the double-sided adhesive tape 5, and the adhesive force to the door opening edge 2 can be strengthened for the time being. (Actual Kaihei No. 1-1112110).

However, when the seal wall 44 is pressed by hand or by a pressing roller, the pressing force acts from the direction inclined with respect to the base portion 41 depending on the pressing direction, and the adhesion of one edge is insufficient. May be. Also, the side walls 42 and 43 are not necessarily the base 41 as shown in the figure.
However, depending on the weather strip, there may be a direction in which the base strip 41 is opened at an obtuse angle.

In such a weather strip, even if the side walls 42 and 43 are made of solid rubber, a sufficient pressing force does not necessarily act on the base portion 41.

In view of the above, the present invention provides an adhesive-type hollow weatherstrip, which has a stable and sufficient pressing force against the double-sided adhesive tape when it is adhered to the opening edge of the door, and has excellent adhesiveness. Another object of the invention is to provide a weather strip having good sealing property.

[0009]

According to the present invention, as illustrated in FIG. 1, in a hollow weather strip 4 in which a base portion 41 is adhered to a door opening edge 2 by a double-sided adhesive tape 5, inside a hollow, A bridge 45a that connects the vehicle interior side of the door glass pressing portion of the seal wall 44 that is opposed to the base portion 41 and is pressed by the door glass 3, and the vicinity of the vehicle exterior side end portion of the base portion 41 to which the vehicle side wall 42 is connected, A feature of the present invention is that a bridge 45b is formed to connect the inside of the seal wall 44 at the portion where the door glass is pressed and the vicinity of the end of the inside of the base 41 where the side wall 43 at the inside is connected.

The bridge 45a is arranged so that the seal wall 44 abuts when the seal wall 44 is pressed by the door glass 3.

[0011]

When the weather strip is attached, when a pressing force is applied from the seal wall 44 side, the bridges 45a and 45b project like two legs, and a substantially uniform pressing force is applied to both sides of the base portion 41. This pressing force is applied to both side walls 4
In addition to the pressing force from 2, 43, the base 4 effectively
1 and the double-sided adhesive tape 5 ensures the adhesion.

Further, when the seal wall 44 is pressed by the door glass 3 when the door is closed, the seal wall 44 is closed by the bridge 45.
It is received by a, and the reaction force improves the adhesion between the seal wall 44 and the door glass 3.

[0013]

In the first embodiment shown in FIG. 1, the weather strip 4 is an extruded body and is surrounded by a base portion 41, a side wall 42 outside the vehicle, a side wall 43 inside the vehicle, and a sealing wall 44. As a fan-shaped hollow body. Base 41
Is thick and made of solid rubber. The side wall 42 on the vehicle outer side extends to the vehicle outer side so as to bend from the vehicle outer end of the base portion 41, and is made of solid rubber except for the tip portion of the sponge rubber. The side wall 43 on the inner side of the vehicle extends from the inner end of the vehicle at the base portion so as to incline toward the inner side of the vehicle in an obtuse angle. And the side walls 42,
The tip end of 43 is connected by a sealing wall 44 made of sponge rubber having a gentle curved shape.

A sponge rubber bridge connecting the seal wall 44 and the base 41 is formed in the hollow. The bridge has a substantially Y-shaped cross section, and the common top 45 is the sealing wall 4
4 extends from the inner side of the door glass 3 at a substantially right angle to the seal wall 44 from the pressing position of the door glass 3 and branches to connect the outer bridge 45a to the base portion 41 at a position slightly inner than the root of the side wall 42. ing. The bridge 45b on the inner side of the vehicle is connected to the root of the side wall 43.

The weather strip 4 has a base portion 4
1 is adhered to the door opening edge 2 along the roof side 1 of the vehicle body with a strip-shaped double-sided adhesive tape 5 over almost the entire width. In the figure, 6 is a roof side molding,
7 is an opening trim.

At the time of attaching the weather strip, the double-sided adhesive tape 5 is attached to the bottom surface of the base portion 41 in advance and is pressed against the door opening edge 2 from the outside of the seal wall 44. At this time, the leg-shaped bridges 45a and 45b are stretched,
A pressing force acts on both ends of the base 41.

At the outer end of the vehicle, the pressing force from the side wall 42 acts at the same time. However, although the side wall 42 is made of solid rubber, it extends obliquely with respect to the pressing force, so that the pressing force is transmitted. The efficiency is not always good. However, the pressing force from the bridge 45a is applied to the end portion on the outer side of the vehicle, so that the necessary adhesive force is secured.

On the other hand, at the end of the base portion 41 on the inner side of the vehicle, the pressing force from the side wall 43 is combined with the pressing force from the bridge 45b which is united with the side wall 43, and a sufficient adhesive force is obtained. . Therefore, even and sufficient pressing force acts on both ends of the double-sided adhesive tape 5 and the vicinity thereof where the adhesive peeling is likely to occur, and the adhesive peeling does not occur.

The bridge 45a on the outer side of the vehicle has a seal wall 44.
The direction is diagonally across the inner part of the. Moreover, the bridge 45a is set to a position for receiving the seal wall 44 when it is pushed by the door glass 3 when the door is closed. Therefore, the adhesion between the door glass 3 and the seal wall 44 is improved, and the sealing performance is improved. Also, door glass 3
When the position of the door glass is displaced to the inside of the vehicle due to the variation in the installation of the bridge 45a, the bridge 45a has a function of pushing the door glass 3 back to a position close to the regular position by its reaction force.

FIG. 2 shows a second embodiment of the present invention. First
The difference from the embodiment is that the opening trim 7 is integrally formed with the weather strip 4, and the side wall 71 of the opening trim 7 on the vehicle outer side is the side wall of the weather strip 4 on the vehicle inner side. A bridge having a substantially Y-shaped cross section is formed in the hollow of the weather strip 4, and a car-side bridge 45a branched from a common top 45 is connected to the base 41 at a car-inside position close to the root of the side wall 42. The bridge 45b on the inner side of the vehicle is connected to the base portion 41 at a position on the outer side of the vehicle that is close to the root of the side wall 71. Base 4
Reference numeral 1 is adhered to the door opening edge 2 by two double-sided adhesive tapes 5a and 5b which are parallel to each other on the outer side and the inner side of the vehicle.
The other structure is substantially the same as that of the first embodiment.

In this embodiment, the double-sided adhesive tape 5a includes
A pressing force acts from the side wall 42 and the bridge 45a,
A pressing force acts on the double-sided adhesive tape 5b from the side wall 71 and the bridge 45b, and sufficient adhesive strength is secured for both the tapes 5a and 5b. At the same time, the bridge 45a also improves the sealing performance between the door glass 3 and the sealing wall 44.

[0022]

According to the present invention, when the base of a hollow weather strip is adhered via a double-sided adhesive tape, a sufficient and non-uniform pressing force is applied to the base, particularly both ends thereof. It can be made to work and enables adhesion without peeling.

[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 weather strip of the present invention is applied.

FIG. 4 is a sectional view of a conventional weather strip in a mounted state taken along the line AA in FIG.

[Explanation of symbols]

 1 Roof side 2 Door opening edge 3 Door glass 4 Weather strip 41 Base 42 Side wall 43 outside the vehicle 43, 71 Side wall inside the vehicle 44 Seal wall 45a, 45b Bridge 5, 5a, 5b Double-sided adhesive tape

Claims (2)

[Claims] 1. A weather strip attached to a door opening edge along a roof side of a vehicle body, wherein a base portion, side walls connected to both ends of the base portion outside and inside the vehicle, and between tips of both side walls are provided. In a weather strip where a hollow body is formed with the connecting seal wall and the base is adhered to the door opening edge with double-sided adhesive tape, inside the hollow, the inside of the door glass pressing part of the seal wall and both side walls are connected. A weather strip for an automobile, characterized in that two bridges are formed to connect the outer side of the vehicle base and the vicinity of the inner side end of the vehicle. 2. The bridge is formed in a substantially Y-shaped cross-section with the seal wall side as an apex, and the bridge outside the vehicle is arranged to abut against the seal wall when the seal wall is pressed by the door glass. The weather strip for automobiles according to claim 1.