JP2765238B2 - Automotive weather strip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip which is mounted along the periphery of an opening of an automobile body to seal between the periphery of the opening and an opening / closing member such as a door for opening / closing the opening. Things.

[0002]

2. Description of the Related Art Taking the door opening of an automobile body as an example,
As shown in FIG. 4, a flange 3 formed on the periphery of the door opening
1, a weather strip 4 is attached. The weather strip 4 is formed on the outer surface of a side wall 52 on the vehicle exterior side of the trim portion 5 to be held on the flange 31 by a flange holding lip 51 extending from the inner facing surface in a U-shaped section, and the door is closed. A hollow main seal portion 61 that sometimes comes into pressure contact with the outer peripheral portion of the door (the door frame 2 in the illustrated example) and a body seal lip 62 whose front end portion comes into pressure contact with the body panel 32.
And a sealing portion 6 provided with

[0003] This type of weather strip 4 can also be obtained by integrally extruding the trim portion 5 and the seal portion 6, but the difference in the material between the trim portion 5 and the seal portion 6, for example, the trim portion 5 In the case of using a hard synthetic resin and using a sponge rubber for the seal portion 6, the trim portion 5 and the seal portion 6 are separately extruded and bonded to each other with an adhesive or the like. In the figure, reference numeral 60 denotes an adhesive surface.

[0004] In this case, the body seal lip 62 of the seal portion 6 has a flat base surface portion 61 adhered to the trim portion 5.
One end is extended to form a shape in which the front end side is curved toward the outside of the vehicle.

[0005]

The trim portion 5
Trim 5 to flange 3 to attach
When pushed in, the body seal lip 62 is pressed against the body panel 32 and is pushed up in the direction of arrow A in the figure. When the trim part 5 is strongly pushed, the body seal lip 62 adhered to the side wall 52 of the trim part 5 is pressed.
At the base in the direction in which it is pulled away from the side wall 52.
A force is applied. With this force, the body seal lip 6
At the base of 2, the adhesive peels off gradually. When the opening is caused by peeling of the adhesive, the pressing force of the body seal lip 62 against the body panel 32 is reduced, which is not preferable in terms of sealing performance.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to prevent the body seal lip from peeling off in a weather strip having a seal portion having a body seal lip adhered to a side surface of a trim portion. It is a thing.

[0007]

The present invention relates to FIGS. 2 and 3.
The body seal lip 62 of the seal part 6 adhered to the outer surface of the side wall 52 on the vehicle exterior side of the trim part 5 as illustrated in FIG.
The inner its root portion is from the outer surface side of the terminal portion of the side wall 52
A shape that extends to the surface side and covers the terminal portion, turns over, extends further outside the vehicle , and the side surface of the tip portion contacts the body panel 32
And said that the content was.

Since the body seal lip 62 has the above-described shape, the body seal lip 62 is
When pressed against the body seal lip 62,
Direction of the force bonding surface between the terminal surface of the side wall 52 of the trim portion 5 is pressed against the said terminal surface is a work, no completely Re adhesive peeling.

[0009]

FIG. 1 shows an automobile to which a weather strip according to the present invention is applied. A door opening 3 on the side of a vehicle body opened and closed by a door 1 is provided along a peripheral edge thereof as shown in FIG. The strip 4 is mounted.

The weather strip 4 has a trim portion 5 made of synthetic resin and having a U-shaped cross section, and a side wall 52 on the vehicle exterior side of the trim 5.
And a sealing portion 6 made of sponge rubber adhered to the outer surface of. A flange holding lip 51 extends from the inner facing surface of the trim portion 5, and a reinforcing insert member 53 is embedded in the trim portion 5.

[0011] The sealing portion 6 is the base surface 611 and an arcuate cross-section substantially D-shaped form in the sealing wall 612 of the hollow main sheet <br/> Lumpur portion 61, body seal extending from one end of the base surface 611 It is an integrally molded body with the lip 62. As shown in FIGS. 2 and 3, the body seal lip 62
11 extends in a direction opposite to the side where the seal wall 612 is formed, and is inverted into a substantially V-shaped cross section.
12 is formed in a shape extending to the formation side.

Thus, the base 611 of the seal 6 and the button
The base of the data lip 62 is bonded to the side wall 52 on the vehicle exterior side of the trim portion 5 with the bonding surface 60. In this case, the body
The base of the loop lip 2 extends the end of the side wall 52 to the outside.
In close contact with the terminal surface covering from the surface side to the inner surface side Zhou bottom of the body seal lip 62 which form a V-shaped positioned inside, i.e. the interior side of the trim portion 5 than the center line B of the side wall 52
State.

The weather strip 4 having the above-described structure is attached as shown in FIG. 2 by inserting the flange 31 on the body side into the trim portion 5 and pushing the trim portion 5 in. In this mounting state, the V-shaped body seal lip 62 has its tip side pressed against the body panel 32. As a result, a force in the direction of the side wall 52 of the trim portion 5 acts on the bottom of the body seal lip 62, and the root of the body seal lip 62 is pressed against the terminal surface of the side wall 52.

[0014]

Therefore, the bonding surface of the body seal lip 62 to the end of the side wall 52 is pressed against the end, so that the adhesive does not peel off.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automobile to which a weather strip of the present invention is applied.

FIG. 2 is a sectional view of the weather strip according to the present invention, taken along line II-II of FIG. 1;

FIG. 3 is a sectional view of a main part of the weather strip of the present invention.

FIG. 4 is a cross-sectional view showing a state where a conventional weather strip is mounted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Door frame 31 Flange 32 Body panel 4 Weather strip 5 Trim part 52 Side wall of vehicle exterior 6 Seal part 60 Adhesive surface 62 Body seal lip

Claims (1)

(57) [Claims] 1. A trim portion having a U-shaped cross section attached to a flange provided along the periphery of an opening of an automobile body, and a seal portion adhered to an outer surface of an outer side wall of the trim portion. In a weather strip having a main seal portion in contact with a member that opens and closes the opening, and a body seal lip extending from an outer surface position of a terminal portion of the side wall toward a body panel opposed thereto and having a front end portion in contact with the body panel. , The body seal lip above the root
Is the base part the outer side of the terminal part on the outside wall of the trim part
Covering the terminal portion extends to the Luo inner surface, form the side surface of the inverted and extends further outside the vehicle direction tip in contact with the body panel
A weather strip for automobiles, wherein the weather strip is shaped like a car.