JP2002187500A - Weather strip for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a weather strip installed in a door opening rim at a car body side, relax the shock on strongly closing door and improve door closing sound without increasing a door closing strength. SOLUTION: The weather strip WB is equipped with a hollow seal part 3 which is swelled from a side of a trim part 2 and pushed against an outer perimeter of a door 1 on door closing, formed opposing a pair of supporting legs 31a, 31b at the base of a seal part 3 connected with the trim part 2, and a stopper member 5 integrally furnished with a stopper member 52 protruding from base parts 51 and 52 inserted between the supporting legs 31a, 31b at the lower position than the door waist line into the hollow part of the seal part 3 is set in the seal part 3.

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 edge of a door opening on the side of a vehicle body of an automobile.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, a weather strip W is attached to an opening edge of a door opening on the side of a vehicle body which is opened and closed by a door 1 along the opening. As shown in FIG. 6, the weather strip W is formed in a loop shape by connecting an extruded body of rubber or thermoplastic elastomer at a corner portion C by molding.

FIG. 7 shows a cross section of a conventional typical weather strip in an attached state along the line VII-VII of FIG. 6. The weather strip WA has a trim portion 2 having a substantially U-shaped cross section and a trim portion. 2 is provided with a hollow seal portion 3 bulging from one side surface. The trim portion 2 is generally made of a solid material, and the seal portion 3 is made of a sponge material. A core member 4 is embedded in the trim portion 2. Weather Strip WA
The trim portion 2 is attached to the flange 61 of the opening edge of the door opening (the center pillar 6 forming the rear edge of the opening in the example) with the seal portion 3 facing the vehicle. And when the door is closed,
The inner surface of the outer peripheral portion of the door 1 is pressed against the seal portion 3.

[0004]

By the way, door 1 has
A rubber-like elastic stopper is provided to prevent the outer periphery of the door 1 from coming into contact with the vehicle body panel around the door opening when the door is strongly closed or the body vibrates greatly, and to reduce an impact sound when the door is strongly closed. Was provided at the lower end of the rear vertical edge of the door 1.

On the other hand, a rubber member is provided in a hollow seal portion of substantially the entire length of the weather strip along the center pillar so that the weather strip itself has a stopper function without providing a stopper on the door. It has been proposed to insert and partially fill the hollow, or to use an integrally molded weatherstrip with the hollow partially filled (for example, Japanese Utility Model Application Laid-Open No. 63-82657).

However, when such a weather strip is used, the door closing force increases, and when the door is strongly closed, a large reaction force is received. Also, when a rubber stopper is integrally formed in the seal portion of the weather strip to be mounted along the center pillar, two types of weather strips are prepared, and a normal weather strip to be mounted along the other part of the door opening edge, These must be connected.

Therefore, according to the present invention, a stopper member can be easily and without displacement within a hollow seal portion of a series of extruded weather strips, and the stopper member does not increase the door closing force. It has been made to provide a weather strip.

[0008]

According to a first aspect of the present invention, there is provided a weather strip attached to a side of a vehicle body along an opening edge of a door opening, wherein the trim section is attached to a flange at the opening edge, and a trim section. In a weather strip for a vehicle provided with a hollow seal portion that bulges from the outer side surface of the vehicle and presses the inner peripheral surface of the door when the door is closed, the seal portion stands upright from the side surface of the trim portion, and The pair of legs facing each other is connected to the side surface, and the sealing portion of the weather strip attached to the rear vertical edge of the opening edge is located below the door waist line between the pair of leg portions of the sealing portion. And a stopper member integrally provided with a stopper portion protruding from the base portion to an intermediate position in the height direction of the seal portion.

The stopper member is formed by forming a slit in the side surface of the seal portion near a predetermined installation location, inserting the slit into the seal portion from the slit, and pressing the base portion between the leg portions of the seal portion to position the stopper member at the predetermined position. It can be installed more easily. Since the stopper member is attached to a part of the weather strip along the rear vertical edge of the door opening, it has little effect on the door closing force.

[0010] At least one of the pair of legs has a projection which projects in a mating direction and which is undercut when the base of the stopper member fitted between the legs is moved inward of the seal portion. It is formed (claim 2). The protrusion ensures that the stopper member is prevented from shifting in the detaching direction more reliably.

The width of the base of the stopper member is formed in such a shape that the upper end thereof is pressed against the pair of legs in the opened state and gradually narrows toward the lower end in the mounted state. The displacement in the vertical direction after the attachment of the stopper member is prevented by pressing the upper ends against the legs on both sides. Also, when the stopper member is inserted into the hollow seal portion and the base portion is inserted between the legs, and then the position is adjusted in the vertical direction, the adjustment is easier than when the stopper member has the entire length pressed against the legs. .

The stopper member is made of a solid material,
A coating layer of a sponge material is formed on the upper end surface of the stopper member. When the door is strongly closed, the stopper member reliably performs the stopper action by its solid part, and the sponge coating layer reduces the impact when the door is strongly closed,
The seal wall of the seal portion sandwiched between the door and the stopper member is prevented from being damaged.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A weather strip WB is an EPDM
As shown in FIG. 1, a rubber extruded body is formed by loop-forming a terminal along an opening edge of a door opening of a vehicle body at a corner C at an upper rear end.

As shown in FIG. 2, the weather strip WB
Includes a trim portion 2 having a substantially U-shaped cross section, and a hollow seal portion 3 bulging from the outer surface of one of the side walls 21a and 21b of the trim portion 2 facing each other. The pair of leg portions 31a and 31b of the seal portion 3 connected to the side wall 21a are opposed to the side wall 21a substantially parallel to each other at a distance from the side wall 21a at a slight inclination to the opening side of the trim portion 2 from a right angle. Standing up from. At the upper end of one leg 31a, a low protrusion 32 protruding in the direction of the other leg 31b is formed continuously in the longitudinal direction of the weather strip. A core 4 is embedded in the trim portion 2. Trim 2 and legs 31a. 31b is made of a solid material, and the seal wall 33 of the seal portion 3 is made of a sponge material.

A stopper member 5, which will be described later, is attached to the inside of the sealing portion 3 of the weather strip WB. The weather strip WB to which the stopper member 5 is attached is attached by fitting the trim portion 2 to a flange 61 formed along the opening edge of the door opening of the vehicle body with the seal portion 3 facing the outside of the vehicle. FIG. 2 shows a state where the trim portion 2 is attached to the flange 61 of the center pillar 6 forming the rear vertical edge of the opening, and the trim portion 2 covers the flange 61 and the side wall 21a,
The holding lip 22 on the inner facing surface of 21 b sandwiches the flange 61.

As shown in FIGS. 1 and 2, a door panel immediately below a waistline 10 (FIG. 5) of the door 1 is provided in the seal portion 3 at the rear vertical portion of the weather strip WB along the center pillar 6 of the vehicle body. The stopper member 5 is provided at a position slightly lower than the door handle 11 provided at the rear end with the leg portions 31a. It is fitted and attached between 31b.

The stopper member 5 has the same EP as the trim portion 2.
Made of solid material of DM rubber, base 51 and base 5
A slightly tapered stopper portion 5 rising upward from 1
2 are integrally provided. The length is about 100 to 200 mm. As shown in FIG. 3, the width of the base 51 fitted between the legs 31a, 31b is such that one end in the length direction presses the legs 31a, 31b slightly wide from the inside thereof, It gradually narrows toward the other end, and the other end
The width is set so as to be loosely fitted between 1a and 31b. Leg 31
a at the upper end of one side surface of the base 51 facing the base 5a.
1 is inserted between the legs 31a and 31b.
A step portion 511 is formed on the lower surface of the second member 2 so as to be tightly engaged.
The height of the stopper 52 is such that the base 51 is
When fitted between the seal portions 31b, the leading end has a dimension in which the center of the seal portion 3 in the height direction or slightly lower than that.

When the stopper member 5 is mounted, a slit is formed in the side of the seal wall 33 on the side of the trim opening slightly above the predetermined mounting position, and the stopper member 5 is moved from the slit to the narrow side. Is inserted into the seal portion 3 with the front end as the front end, the front end is pushed between the legs 31a and 31b, and the entire base portion 51 is pressed into the space between the legs 31a and 31b while the stopper member 5 is pushed down, and further to a predetermined position. Push down.

The reason why the width of the base portion 51 is gradually changed so as to become narrower toward the insertion side into the seal portion 3 is that the base portion 51 has a uniform width in which the leg portions 31a and 31b are pressed against the opposing surfaces over the entire length. This is because the insertion between the legs 31a and 31b is easy, and the resistance when pushing down and adjusting the position after insertion is small. When the stopper member 5 is positioned and mounted, the upper end thereof is pressed against the leg portions 31a and 31b so as to push it apart, and the stopper member 5 itself is also lightweight. There is no downward displacement due to the vibration.

Further, since the projection 32 is formed, when the base 51 is completely inserted between the legs 31a and 31b through the projection 32, there is a sense of moderation, and the occurrence of incomplete fitting is prevented. To prevent. Since the wide end of the base portion 51 is pressed against the leg portions 31a and 31b, there is almost no risk of the seal portion 3 coming out of the hollow portion. The cut serves to more reliably prevent the base portion 51 from coming off.

In the weather strip WB in which the stopper member 5 is mounted in the seal portion 3, when the door 1 is strongly closed and overstroke, the inner surface of the rear end portion of the door 1 passes through the seal wall 33 of the seal portion 3. Abuts against the tip of the stopper member 5 to prevent excessive overstroke. This prevents interference between the door 1 and the vehicle body panel, and prevents generation of a shocking door closing sound. The stopper member 5 is the door 1
The door closing force is hardly increased because it is attached to only a part of the rear vertical edge of the door. And especially the stopper member 5
Is mounted using a groove-shaped gap between the legs 31a and 31b of the seal portion 3, so that the mounting is easy, and at least a part of the base 51 of the stopper member 5 is attached between the legs 31a and 31b. By press-fitting, no positional deviation occurs even after mounting.

FIG. 4 shows another embodiment of the stopper member. A covering layer 53 of a sponge material having an uneven surface is integrally formed on an upper end of a stopper portion 52 rising from a base portion 51 of the stopper member 5A. It is. By providing the coating layer 53, the door 1 is closed tightly so that the door 1 is closed.
The impact at the time of colliding with the stopper portion 52 through 3 is reduced. In addition, the weather strip WB prevents damage to the seal wall 33 sandwiched between the inner peripheral surface of the door 1 and the upper end of the stopper portion 51 of the stopper member 5 by repeatedly closing the door.
To improve the durability. Also, if the protrusions 54a and 54b are formed on the bottom surface of the base 51 as shown in the figure, the line contact state is obtained when the base 51 is inserted between the legs 31a and 31b of the seal portion 3a and then pushed down to adjust the position. As a result, the movement resistance is reduced.

Although the above description has been made of the weather strip attached to the opening edge of the door opening on the front side of the vehicle side, the present invention is also applied to the weather strip attached to the rear door opening edge. Is provided with a stopper member in the hollow of the sealing portion of the weather strip along the rear pillar.

The present invention can be applied not only to a rubber weather strip but also to a TPO weather strip. In this case, the stopper member is made of a solid rubber material or TPO.
Any of the above stopper members may be used.

[0025]

According to the present invention, the stopper member is provided at a part of the opening edge of the door opening of the vehicle body in the vertical direction in the sealing portion of the weather strip along the vertical edge on the door opening / closing side.
It is possible to prevent an excessive overstroke of the door when the door is strongly closed without increasing the door closing force, and to improve the door closing sound. The stopper member utilizes the gap formed between the legs at the base end of the seal portion, and can be easily fitted to a predetermined position without displacement by fitting into the gap.

[Brief description of the drawings]

FIG. 1 is an overall schematic view of a weather strip of the present invention.

FIG. 2 is a cross-sectional view showing a state where the weather strip of the present invention is mounted at a position along the line II-II in FIG. 1;

FIG. 3 is a top view of a stopper member of the weather strip of the present invention.

FIG. 4 is a sectional view of another stopper member of the weather strip of the present invention.

FIG. 5 is a side view of an automobile to which the weather strip of the present invention is applied.

FIG. 6 is an overall schematic view of a conventional weather strip.

FIG. 7 is a cross-sectional view of a conventional weather strip at a position along a line VII-VII in FIG. 6;

[Explanation of symbols]

 WA Conventional weatherstrip WB Weatherstrip of the present invention 1 Door 10 Door waist line 2 Trim 3 Seals 31a, 31b Leg 32 Projection 5, 5A Stopper member 51 Base 52 Stopper 53 Coating layer 6 Door opening edge ( Center pillar) 61 Flange

Claims (4)

[Claims] 1. A weather strip attached along an opening edge of a door opening on a side surface of a vehicle body, a trim portion attached to a flange at the opening edge, and a door closing by swelling from a side surface of the trim portion on a vehicle exterior side. In a weather strip for a vehicle having a hollow seal portion against which an outer peripheral inner surface of a door is sometimes pressed, the seal portion is connected to the side surface by a pair of opposing legs standing up from the side surface of the trim portion. In the sealing portion of the weather strip attached to the rear vertical edge of the opening edge, a base portion fitted between the pair of legs of the sealing portion at a position below the door waist line, and a seal from the base portion. A weather strip for an automobile, comprising a stopper member integrally provided with a stopper portion projecting to a middle position in a height direction of the portion. 2. The undercut is formed on at least one of the pair of legs so as to protrude in the mating direction and to prevent the base of the stopper member fitted between the legs from moving in the seal portion. The automotive weather strip according to claim 1, wherein the projection is formed. 3. The vehicle according to claim 1, wherein the width of the base of the stopper member is formed such that an upper end thereof is pressed against the pair of legs in an opened state and gradually narrows to a lower end side in a mounted state. Weather strip. 4. A weather strip for an automobile according to claim 1, wherein said stopper member is made of a solid material, and a coating layer of a sponge material is formed on an upper end surface of said stopper member.