JP2002046475A - Seal structure of side door for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a traveling wind from passing through a peripheral area of a door sash and to reduce wind noise. SOLUTION: In the side door, a sash weather strip 4 is laid and mounted on a door sash 3 and an outer surface of peripheral area of a base plate 12 for mounting a door mirror. A hollow tongue piece 19 closely contacted with an expanding end 4d at an interior side of the sash weather strip 4 is provided on a terminal part 18 at a front upper end of a door weather strip 6. A space formed among three parts, i.e., the door weather strip 6, the sash weather strip 4 and a door opening part when closing the door is closed by the tongue piece 19. A traveling wind does not pass through the space formed in these three parts and turn around the peripheral area of the door sash 3. Thereby, wind noise is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile side door seal structure having a base plate for mounting a door mirror, and more particularly to an automobile side door seal improved to prevent generation of wind noise during traveling. Regarding the structure.

[0002]

2. Description of the Related Art As a seal structure for a side door of an automobile, as shown in FIG.
, The body side weather strip 2 is attached to the periphery of the door sash 3, the sash weather strip 4 is attached to the outer peripheral surface of the door sash 3, and the door weather strip 6 is attached to the lower half of the waist of the door body 5 inside the car. As shown in FIG. 12, a weather strip is not provided on the side of the body, and a sash weather strip 4 is provided on the outer peripheral area of the door sash 3 of the side door.
And a door weather strip 6A is annularly attached to the inside surface of the vehicle from the door body 5 to the door sash 3.

[0003] By the way, as a side door for an automobile, the one shown in FIGS. 13 to 15 is currently being developed.

In this side door, a front inclined side 3a of the door sash 3, substantially along a front pillar portion 7a on the body side (see FIG. 11), curves downward just before the front end of the door body 5. The inner area of the door sash 3 is divided into a front triangular corner portion 9 and a rear glass elevating portion 10 by a partition sash 8, and a base plate 12 for mounting a door mirror is mounted on the triangular corner portion 9. The base plate 12 covers the vehicle outer side surface of the lower curved portion 3b of the door sash 3 and closes the step-like discontinuous portion 11 between the door sash 3 and the front end of the door body 5 in front of the door sash 3. The swelling portion 13 extends continuously from the outer peripheral surface of the door sash 3 to the front end of the door body 5.

The door sash 3 is provided with a flange 3d extending in the vehicle exterior direction along the longitudinal direction on the outer peripheral area of the frame portion 3c having a box-shaped cross section, and the sash weather strip 4 is provided on the flange 3d. The inner lip 4b and the outer lip 4c are fitted and fixed and provided on the outer peripheral surface of the sash weather strip 4.
However, when the door is closed, it comes into close contact with the inner peripheral surface of the door opening 1. In the sash weather strip 4, a glass run 17 is integrally formed at a position behind the partition sash 8 so as to be in close contact with the periphery of the elevating glass 15 when the elevating glass 15 is raised.

[0006] A flange 13a is provided at the edge of the bulging portion 13 of the base plate 12 so as to be bent outwardly of the vehicle.
It is continuous with the flange 3d on the rear side. And
The flange 13a has a flange 3 of the door sash 3.
The sash weather strip 4 is connected and fitted so that the sash weather strip 4 is continuous with the sash weather strip 4, and the outer peripheral area from the door sash 3 to the front end of the door body 5 is continuously sealed by the sash weather strip 4 when the door is closed. ing.

On the other hand, the front upper end of the door weather strip 6 attached to the inner side surface of the door body 1 is shown in FIG.
As shown in FIG. 3, the seal for the door opening 1 is extended in the longitudinal direction by the door weather strip 6 and the sash weather strip 4.

The related technology of this side door is disclosed in, for example, Japanese Patent Application Laid-Open No. 2-48222.

[0009]

In the currently developed side door sealing structure, even if water droplets or wind enters the gap between the front end of the door body 5 and the door opening 1, they are not removed. The door weather strip 6 attached to the inside surface of the vehicle and the body side weather strip 2 attached to the door opening 1 reliably prevent the vehicle from entering the interior of the vehicle.

However, in the case of this sealing structure, the sash weather strip 4 is attached to the base plate 1 at the overlapping portion of the sash weather strip 4 and the body side weather strip 2 at the front end of the door body 5.
While it is attached to the outside of the vehicle on the outside of the peripheral area,
The body side weather strip 2 is attached to the base plate 12 so as to be deviated toward the inside of the vehicle. For this reason, in the overlapping portion, as shown in FIG.
A gap d is formed between the door weather strip 6, the sash weather strip 4, and the door opening 1 on the side body side along the longitudinal direction.

Therefore, in the above-mentioned sealing structure, the traveling wind entering from the fender side during the traveling of the vehicle passes through the gap d as shown by the arrow a in FIG. It is sometimes feared that wind noise is generated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sealing structure for a side door for an automobile which can prevent a traveling wind from passing through a peripheral area of a door sash and generate less wind noise.

[0013]

Means for Solving the Problems As means for solving the above-mentioned problems, the invention according to claim 1 is provided so that an upper portion of a door body is provided along a substantially upper half of a door opening on a body side. A door sash is provided, of this door sash,
A front inclined side substantially along the front pillar portion of the door opening is bent downward before the front end of the door body and is attached to the door body, and a base plate for attaching a door mirror is provided at the front end of the door body. The front side of the door sash is mounted so as to cover the car's outer surface and fill the discontinuity between the downwardly curved portion of the door sash and the front end of the door body. A door weatherstrip, which is in close contact with at least substantially the lower half of the door opening, is attached from the inside surface of the door body to the inside surface of the base plate,
In the seal structure for an automobile side door, a sash weather strip which is in close contact with a substantially upper half of the door opening when the door is closed is continuously attached to the door sash and a peripheral outer surface of a base plate in front of the door sash. At least one of a weatherstrip and a sash weatherstrip, when the door is closed, a gap between the door weatherstrip, the sash weatherstrip, and the door opening near the base plate at least in the longitudinal direction. A tongue piece to be filled with was provided.

According to the present invention, the gap between the door weather strip, the sash weather strip, and the door opening is closed at least partially in the longitudinal direction by the tongue, so that the gap is formed along the door weather strip. The traveling wind trying to go around the upper side of the door sash is blocked by the tongue pieces.

According to the second aspect of the present invention, the tongue piece is formed to be hollow. In the present invention, the tongue piece flexibly deforms to follow the door opening and the sash weather strip or the door weather strip, and almost completely closes the gap.

According to the third aspect of the present invention, the tongue is provided integrally with the door weather strip, and the tongue is formed in a shape that wraps the inner side surface of the sash weather strip.

In the case of the present invention, when the side door is closed, the door weather strip and the sash weather strip come into close contact with the door opening, respectively, and the tongue formed on the door weather strip moves from the door opening at this time. The sash weatherstrip is tightly wrapped around the inner surface of the vehicle by receiving the pressing reaction force.

[0018]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG.

FIGS. 1 and 2 are an exploded perspective view and a side view, respectively, of an automobile side door according to the present invention, corresponding to a portion H of the vehicle shown in FIG. 11, and as shown in these figures, The side door has a door sash 3 at the top of the door body 5.
And a partition sash 8 that divides the inner area of the door sash 3 into a front triangular corner portion 9 and a rear glass elevating portion 10.

The door sash 3 has a front inclined side 3 substantially along the front pillar portion 7a on the body side (see FIG. 11).
a is curved downward in front of the front end of the door body 5 while being gradually offset in the vehicle direction with the connecting portion of the partition sash 8 as a boundary (this portion is referred to as a “downward curved portion 3b”). The lower end is joined to the inside of the door body 5. Therefore, a step-shaped discontinuous portion 11 as shown in FIG. 2 is formed between the door sash 3 and the front end of the door body 5 when viewed from the side of the side door.

As shown in FIGS. 3 to 8, the door sash 3 is provided with a flange 3d extending in the vehicle outward direction along the longitudinal direction on the outer peripheral area of the frame portion 3c having a box-shaped cross section. A sash weather strip 4 described later is fitted and fixed to a flange 3d in a region on the rear side of the curved portion 3b.

On the other hand, a base plate 12 for mounting a door mirror is provided in the triangular corner portion 9 ahead of the partition sash 8. The base plate 12 has a lower end attached to the inside of the door body 5 and a portion rising upward from the lower end is connected to the partition sash 8 and the lower curved portion 3b of the door sash 3, and the front end thereof is a door sash. 3 so as to cover the vehicle outer side surface of the downward curved portion 3b and close the discontinuous portion 11;
That is, the front inclined side 3a of the door sash 3 and the door body 5
Is bulged toward the front side of the vehicle so as to smoothly continue with the front end portion (this portion is referred to as a "bulged portion 13").

The bulging portion 13 of the base plate 12 is shown in FIG.
As shown in FIG. 5, the curved cover portion 13b having a fixed width covering the vehicle outer surface of the lower curved portion 3b of the door sash 3 is bent stepwise to the vehicle outside, and the portion is bent downward from the connection portion with the door sash 3 at the upper end. The door body 5 is formed so as to gradually increase its bulging width toward the front end, and has a flange 13a formed at the front end thereof, which is bent in the vehicle exterior direction, in the longitudinal direction. This flange 13a is used for the door sash 3
Is located on the extension of the flange 3d in a region behind the lower curved portion 3b.

Here, the sash weather strip 4
Is fitted and fixed to the flange 3d in the region behind the lower curved portion 3b of the door sash 3 as described above, but moves onto the flange 13a of the base plate 12 in the region ahead of the lower curved portion 3b. It is fitted and fixed.

As shown in FIG. 3, the sash weatherstrip 4 is attached to the flange 3d in a region from the upper side of the door sash 3 to the rear side of the lower curved portion 3b of the front inclined side 3a. A glass run 17 is integrally formed on the inner surface side of the peripheral region of 4a. This grass run 17
Has an inner lip 17a and an outer lip 17b, which are slidably in close contact with the periphery of the door elevating glass. The glass run 17 branches off from the mounting base 4a of the sash weather strip 4 while changing its cross-sectional shape at the position of the partition sash 8, and a portion below the branch position is fitted and fixed to the partition sash 8 (see FIG. 1). ).

The mounting base 4a of the sash weather strip 4 has a substantially common cross-sectional shape at a portion attached to the flange 3d of the door sash 3 and a portion attached to the flange 13a of the base plate 12, and these outer peripheral sides are provided. , An inner lip 4b and an outer lip 4c that are in close contact with substantially the upper half of the door opening 1 are formed continuously in the longitudinal direction. Further, an arc-shaped bulging end 4d is provided in the longitudinal direction at an inner end portion of the mounting base 4a which covers the outer peripheral surface of the flanges 3d and 13a. The downwardly curved portion 3 of the door sash 3 of the bulging end 4d
3, the bulging end 4 d is in close contact with the base of the flange 3 d and the lower curved portion 3 b
4 to 7, the bulging end 4d forms the base of a small lip 4e bent toward the base plate 12, as shown in FIGS.

On the other hand, the door body 5 (door inner panel 5)
As shown in FIGS. 2 and 8, a door weather strip 6 is attached to a peripheral area below the door waist portion in the inner side surface of the vehicle shown in FIG. The general portion of the door weather strip 6 has a fixed cross section having a hollow lip 6a which is in close contact with the inner peripheral surface of the door opening 1 when the door is closed, as shown in FIG. The terminal portion 18 has an irregular cross-sectional shape as shown in FIG. 9 and slightly protrudes above the door waist portion.
As shown in FIGS. 5 to 7, the terminal portion 18 is connected so as to extend from the inside surface of the door inner panel 5 a (door body 5) to the inside surface of the bulging portion 13 of the base plate 12.

The terminal portion 18 has a mounting base 18a which is supported along the bent corner c of the inner side surface of the door main body 5 and the base plate 12 and a front inwardly extending from the mounting base 18a. And has a hollow lip 18b projecting therefrom.
When the front end of the door b is closed, the inner peripheral surface of the door opening 1 is slightly closer to the inside of the vehicle than the close position of the sash weather strip 4 (inner lip 4b) in the longitudinal direction. It is getting closer.

On the side surface near the upper end of the terminal portion 18, a tongue piece 19 is formed integrally so as to extend so as to surround the bulging end 4d of the sash weather strip 4 on the inside of the vehicle. As shown in FIGS. 6 and 10, the tongue piece 19 is formed such that an inner surface facing the bulging end 4d is curved substantially along the outer surface shape of the bulging end 4d, and an outer surface is a hollow lip. When the door is closed, almost the entire outer surface thereof is in close contact with the inner surface of the door opening 1 continuously from the distal end of the hollow lip 18b, and at the same time, when the door is closed. The side surface is in close contact with the bulging end 4d. Therefore, the tongue piece 19 closes the door weather strip 6, the sash weather strip 4, and the door opening 1 in a part of the longitudinal direction near the base plate 12. Further, the tongue piece 19 is formed to be hollow continuously from the hollow lip 18b,
The whole is almost uniform and thin.

Incidentally, the seal structure of this embodiment is shown in FIG.
As shown in FIG. 10, a body side weather strip 2 is attached to a joint flange 1a near the vehicle in the area around the door opening 1 as shown in FIG.
When the door is closed, the weather strip 2 is continuously in close contact with the frame portion 3c of the door sash 3 from the inner peripheral area of the inner side surface of the door body 5 where the door weather strip 6 is mounted.

Since the side door has the above-described configuration, the upper half of the peripheral area thereof has a sash weather strip 4.
And the body side weather strip 2 is double-sealed, and the lower half of the peripheral area is double-sealed by the door weather strip 6 and the body side weather strip 2.

In addition, since the sash weather strip 4 for sealing the outer peripheral surface of the upper half portion is connected to the base plate 12 from the door sash 3, the side door is mounted on the inner side surface of the bulging portion 13 of the base plate 12. The end portion 18 of the door weather strip 6 and the front end of the sash weather strip 4 overlap each other in their longitudinal directions, but are slightly offset in the vehicle width direction and the vehicle longitudinal direction.

However, a tongue piece 19 is formed at the end portion 18 of the door weather strip 6 near the base plate 12 so as to surround the bulging end 4d of the sash weather strip 4 inside the vehicle. From the lip 18b to the tongue piece 19, the door opening 1
At the same time as the tongue piece 19 is completely in contact with the bulging end 4d, so that the gap between the door weather strip 6, the sash weather strip 4, and the door opening 1 is partially Completely closed.

Therefore, when the door is closed, the traveling wind does not enter the gap between the three members from the front end of the sash weather strip 4, and the generation of wind noise due to the traveling wind flowing around the door sash 3 is ensured. Is prevented.

In particular, in this embodiment, since the tongue piece 19 is formed so as to surround the bulging end 4d of the sash weather strip 4, the terminal portion 1 when the door is closed is provided.
Due to the elastic reaction force of 8, the tongue piece 19 comes into three-dimensional surface contact with the sash weather strip 4, and the gap between the sash weather strip 4 and the door weather strip 6 can be reliably eliminated.

Since the tongue piece 19 is formed hollow, the elastic reaction force of the terminal portion 18 when the door is closed flexibly follows the outer surface of the swell weather strip 4 at the bulging end 4d. Furthermore, since the small lip 4e is formed at the bulging end 4d portion of the door weather strip 6 with which the tongue piece 19 abuts, when a pressing reaction force acts on the hollow lip 18b when the door is closed, the tongue piece 19 at this time becomes The small lip 4e comes into close contact with the bulging end 4d while being deformed. Therefore, at this time, the small lip 4e makes the tongue piece 19 and the bulging end 4d more closely contact with each other, and at the same time, the local lip 4b and the outer lip 4c due to the bulging end 4d being pressed by the tongue piece 19. An increase in force is prevented.

In the embodiment described above, the body side weather strip 2 is mounted on the door opening 1 side, and the door weather strip 6 is mounted substantially U-shaped below the door waist of the door body 5. However, as shown in FIG. 12, a body side weather strip is not provided on the door opening 1 side, and the door weather strip 6A is attached in an annular manner from the door body 5 to the door sash 3. You may. In this case, instead of providing the tongue piece 12 at the end of the door weather strip 6, a similar tongue piece 19 is provided at the mounting position of the base plate 12 of the annular door weather strip 6A. Then, the gap between the door weather strip 6, the sash weather strip 4, and the door opening 1 may be filled.

The door weather strip 6, the sash weather strip 4, and the tongue piece 19 for filling the gap between the three members of the door opening 1 may be provided on the sash weather strip 4 side, or the door weather strip 6 and the sash may be provided. It may be provided on both sides of the weather strip 4.

[0039]

As described above, the invention described in claim 1 is
When the vehicle is running, it can reliably prevent the traveling wind from entering the upper side of the door sash along the door weather strip, thereby eliminating the generation of wind noise caused by this sneaking and keeping the vehicle quiet. Can be increased.

According to the second aspect of the present invention, the tongue can be flexibly deformed by following the door opening and the sash weather strip or the door weather strip.
The gap between the door weather strip, the sash weather strip, and the door opening is almost completely closed, so that the generation of wind noise can be more reliably prevented.

According to the third aspect of the present invention, the sash weather strip can be brought into close contact with the tongue so as to wrap the inner side of the vehicle by the reaction force from the door opening, so that the door weather strip, the sash weather strip, Further, the gap between the three members of the door opening can be more completely closed.

[Brief description of the drawings]

FIG. 1, showing an embodiment of the present invention, is an exploded perspective view corresponding to a portion H of FIG. 11 with a door mirror removed.

2 is a side view of the same embodiment, corresponding to a portion H in FIG. 11 with a door mirror removed.

FIG. 3 is an exemplary sectional view taken along the line AA of FIG. 2 showing the embodiment;

FIG. 4 is a sectional view of the same embodiment, taken along line BB of FIG. 2;

FIG. 5 is a sectional view of the same embodiment, taken along line CC of FIG. 2;

FIG. 6 is an exemplary cross-sectional view of the same embodiment taken along the line DD in FIG. 2;

FIG. 7 is an exemplary cross-sectional view of the same embodiment taken along line EE of FIG. 2;

FIG. 8 is an exemplary sectional view of the same embodiment taken along line FF of FIG. 2;

FIG. 9 is an exemplary perspective view of the end of the body side weather strip according to the embodiment;

FIG. 10 is an exemplary perspective view showing the same embodiment, which is broken at a portion corresponding to line GG in FIG. 2;

FIG. 11 is an exploded side view of the vehicle.

FIG. 12 is a side view of the vehicle.

FIG. 13 is a side view showing a conventional technique and corresponding to a portion H in FIG. 11 with a door mirror removed.

FIG. 14 shows the same technology, and is an exploded perspective view of the same portion as FIG.

FIG. 15 is a perspective view showing a conventional technique taken along a line II in FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door opening part 2 ... Body side weather strip 3 ... Door sash 3b ... Downward curved part 4 ... Sash weather strip 5 ... Door body 6 ... Door weather strip 11 ... Discontinuous part 12 ... Base plate 19 ... Tongue piece

Claims (3)

[Claims] 1. A door sash is provided at an upper portion of a door body along a substantially upper half of a door opening on a body side, and a front portion of the door sash substantially along a front pillar portion of the door opening. The sloped side is bent downward in front of the front end of the door body, and is attached to the door body. At the front end of the door body, a base plate for mounting a door mirror covers the vehicle outer surface of the door sash, and the door sash is bent downward. Door bulging forward of the door sash so as to fill in a discontinuous portion between the door sash and the front end of the door body, and is in close contact with at least a substantially lower half of the body side door opening when the door is closed. A weatherstrip is attached from the vehicle interior surface of the door body to the vehicle interior surface of the base plate, and is in close contact with substantially the upper half of the door opening when the door is closed. In a seal structure for a side door for an automobile, wherein a sash weather strip is continuously attached over a peripheral outer surface of the door sash and a base plate in front of the sash, a door is provided on at least one of the door weather strip and the sash weather strip. A door weather strip, a sash weather strip near the base plate, and a tongue piece for filling at least a part of the gap between the three members of the door opening in the longitudinal direction when the vehicle is closed; Side door seal structure. 2. The seal structure for an automobile side door according to claim 1, wherein said tongue piece is formed hollow. 3. The vehicle side according to claim 1, wherein the tongue is provided integrally with the door weather strip, and the tongue is formed in a shape that wraps around the inner side surface of the sash weather strip. Door seal structure.