JP3238014B2 - 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 mounting portion to be mounted on a flange of a vehicle body, a hollow projecting outward from the mounting portion and being elastically deformed by being pressed by the vehicle door when the vehicle door is fully closed. The present invention relates to a weather strip for an automobile having a sealing portion, and more specifically, to a structure of a weather strip for an automobile for sealing a gap between an automobile door and a vehicle body.

[0002]

2. Description of the Related Art In a four-wheeled vehicle, a weather strip is usually mounted on a flange of a vehicle body part forming a door opening, and the weather strip seals a gap between a vehicle door and a vehicle body. I am trying to do it.
Conventionally, in order to hide a door inner panel constituting an inner surface of an automobile door, measures as shown in FIGS. 4, 5 and 6 are employed. In these figures, 20 is a vehicle body made of a panel material, 21 is a weather strip attached to a flange 20a of the vehicle body 20, 22 is a door inner panel constituting an inner surface of an automobile door 30, and 23 is this door inner panel. This is a door trim mounted inside the panel 22.

First, in the case shown in FIG. 4, a bent piece 24 bent toward the weather strip 21 is provided at a side end of the door trim 23 (a location indicated by a symbol P in FIG. 4). , The door inner panel 22 is hidden. That is, the door inner panel 2 corresponding to the gap 25 between the door trim 23 and the weather strip 21
The two parts are covered and hidden by the bent pieces 24 of the door trim 23,
This allows the door inner panel 22 to pass through the gap 25.
Are not visible from the side of the passenger compartment to improve the appearance. In this case, the seal between the automobile door 30 and the vehicle body 20 is made only at the contact point α between the top of the hollow seal portion 21a of the weather strip 21 and the door inner panel 22.

In the case shown in FIG. 5, the cross-sectional shapes of the hollow seal portion 21a and the hollow portion 21b of the weather strip 21 are made larger than usual so that the elastic deformation of the hollow seal portion 21a when the door is fully closed ( (Deflection deformation) is increased so that the side portion of the hollow seal portion 21a is brought into contact with the door trim 23. Thereby, the gap 25 between the door trim 23 and the weather strip 21 is covered by a part of the hollow seal portion 21a, and the door inner panel 22 is covered. In this case, the seal between the automobile door 30 and the vehicle body 20 is formed by the same contact point α as described above and the hollow seal portion 2 of the weather strip 21.
1a and the contact portion β between the door trim 23 and the side portion 1a.

In the case shown in FIG. 6, a lip piece 26 is provided on an opening trim portion (attachment portion) 21c of the weather strip 21 so that when the automobile door 30 is fully closed, a gap between the door trim 23 and the weather strip 21 is provided. Of the door inner panel 2 is covered with the lip piece 26.
2 is covered. In this case, the seal between the lip piece 26 and the door trim 23 is not sealed, and the seal between the car door 30 and the vehicle body 20 is made only at the contact point α similar to the above. ing.

[0006]

However, the conventional structure as described above has the following problems.

That is, in the structure shown in FIG. 4, since the door trim 23 has the bent piece 24,
When assembling the door 3 to the door inner panel 22, the work of aligning these members may be hindered, and there is a problem that the assembling workability is deteriorated.

Further, in the structure shown in FIG. 5, since the hollow seal portion 21a of the weather strip 21 is larger than usual, the variation in the elastic deformation of the hollow seal portion 21a also increases. Therefore, when the automobile door 30 is closed, the hollow seal portion 2 is closed.
There is a problem that the side portion 1a relatively strongly hits the door trim 23 and the elastic repulsion thereof increases, and the closing of the vehicle door 30 becomes poor.

In the structure shown in FIG. 6, a lip piece 26 is attached to the opening trim portion 21c of the weather strip 21.
The appearance of the lip piece 26 deteriorates, and the occupant gets hooked on the lip piece 26 when getting on and off, and the weather strip 21 is attached to the vehicle body 2.
There is a possibility that it may deviate from zero.

SUMMARY OF THE INVENTION The present invention has been made to solve such various problems, and an object of the present invention is to improve the closeability of an automobile door while improving the appearance. In addition, it is an object of the present invention to provide a weather strip for an automobile which can have a double seal structure and can improve sound insulation and waterproofness.

[0011]

In order to achieve the above-mentioned object, according to the present invention, there is provided a mounting portion to be mounted on a vehicle body, and the vehicle is disposed so as to protrude outward from the mounting portion and when the vehicle door is fully closed, A weather strip for an automobile having a hollow seal portion that is elastically deformed by being pressed by a door. A lip piece extending in a direction protruding into the opening is provided, and as the hollow seal portion is pressed by the car door and elastically deformed when the car door is fully closed, a tip portion of the lip piece is provided. it is a move in a direction to protrude into said door opening with the elastic deformation of the hollow sealing portion, abuts against the disposed on the inner surface of the motor vehicle door trim
When the vehicle door is fully closed, the vehicle door is closed.
A) and completely close the gap between the
The inner panel of the car door is exposed in the cabin
While preventing the hollow seal and the automobile door from
The inner panel and the inner panel are in contact with each other and seal
And the lip piece and the door trim are interchanged.
And the seal is made at this contact portion .

[0012]

[Function] When the car door is fully closed, the hollow seal is
A), when it is elastically deformed by being pressed by the
Protrudes into the door opening due to the elastic deformation of the hollow seal.
In the door opening and projecting into the door opening.
The door inner panel comes into contact with the door trim arranged on the inner surface of the door, and the door inner panel is covered and hidden by a lip piece. And with this
As a result, the inner panel is covered and hidden by the lip piece. Ma
Also, when the car door is opened, the elastic deformation of the hollow seal
Return to the original, the amount of protrusion of the lip piece from inside the door opening is reduced
I do. In addition, the vehicle door and the vehicle body are sealed (double seal) at two points of contact between the door inner panel and the hollow seal portion and between the lip piece and the door trim.

[0013]

1 to 3 show an embodiment of the present invention.
This will be described with reference to FIG.

FIGS. 1 and 2 show an automobile door (side door) 2 rotatably mounted on a vehicle body (side panel) 1 of a four-wheeled automobile. The automotive weatherstrip 3 according to the present invention is attached to a vehicle body portion to be mounted.

The weather strip 3 for an automobile of this embodiment is made of a rubber material having an appropriate elasticity. As shown in FIGS. 2 and 3, a mounting portion (opening trim) which is mounted on the flange 4 of the vehicle body 1 is provided. Part) 5 and a hollow seal part 6 which is arranged to protrude outward from the mounting part 5 and is elastically deformed by being pressed by the automobile door 2 when the door is fully closed.

More specifically, the mounting portion 5 described above is used.
3, as shown in FIG. 3, a base 5a formed substantially in a U-shape, two pairs of holding pieces 5b integrally formed inside the base 5a, and integrally provided outside the base 5a. And a projecting piece 5c. Although not shown, an elastic U-shaped core is buried in the base 5a for reinforcement. Further, the above-mentioned hollow seal portion 6 has a hollow portion 7 inside thereof, and can be elastically deformed into an appropriate shape in response to a pressing force. Further, a lip piece 8 extending outward from the hollow seal portion 6 is provided integrally with the hollow seal portion 6 at a position on the outer surface of the hollow seal portion 6 on the vehicle interior side.

Thus, the weather strip 3 is attached to the flange 4 of the vehicle body 1 whose mounting portion 5 forms the door opening 9 as shown in FIG.
Is mounted as shown in FIG.
Is arranged outside the vehicle body. Then, the lip piece 8 of the hollow seal portion 6 is arranged so as to protrude toward the door opening 9,
It is arranged so as to correspond to the side surface 11 of the door trim 10.

On the other hand, the car door 2 is a door inner panel 2.
a and the door outer panel 2b are joined to each other in a closed cross section (see FIG. 1).
A door trim 10 is attached to the inner surface of a for decoration. The door trim 10 is a conventionally used component, and has a general shape having no bent piece 24 as shown in FIG.

The weather strip 3 thus arranged
Has the following functions. That is, when the automobile door 2 is closed, the door inner panel 2a comes into contact with and presses against the hollow seal portion 6 of the weather strip 3, and accordingly, the hollow seal portion 6 is indicated by a dashed line in FIG. From the state shown, it is elastically deformed to the state shown by the solid line. Then, along with the elastic deformation of the hollow seal portion 6, the lip piece 8 of the hollow seal portion 6 moves in a direction to protrude into the door opening 9, and the tip portion 8a of the lip piece 8 becomes the side surface 11 of the door trim 10 of the automobile door 2. Gradually approaching the car door 2
Is located at the fully closed position, the tip portion 8a of the lip piece 8 comes into contact with the side surface 11 of the door trim 10 at the position indicated by the symbol M in FIG.

For this reason, the gap 12 generated between the weather strip 3 and the door trim 10 when the door is fully closed is completely closed by the lip piece 8, and the door inner panel 2a can be seen from the vehicle interior through this gap 12. There is no such thing as going out. Therefore, according to the configuration of the present example, it is possible to avoid a deterioration in the appearance due to the door inner panel 2a touching the occupant's eyes through the gap 12, and to obtain a good appearance.

Further, according to the configuration of this embodiment, when the door is fully closed, the top of the hollow seal portion 6 and the door inner panel 2a are pressed against each other by the elastic restoring force of the hollow seal portion 6. At the same time, the front end portion 8a of the lip piece 8 of the hollow seal portion 6 and the side surface 11 of the door trim 10 are brought into a press-fit state by the elastic restoring force of the lip piece 8. Therefore, the seal between the vehicle body 1 and the vehicle door 2 at the door opening 10 is made at the above-described two locations, that is, at the locations indicated by reference numerals P and Q in FIG. 2. Improvement can be achieved.

In this embodiment, the door trim 10 does not need to be provided with the bent pieces 24 as shown in FIG.
The work of aligning the door inner panel 2a with the door inner panel 2a can be performed easily as in the prior art, and there is no problem that the workability is reduced.

Further, in the present embodiment, the lip piece 8 is brought into contact with the door trim 10 (elastically press-fitted) as described above, so that the lip piece 8 acts on the door inner panel 2a from the hollow seal portion 6 correspondingly. The power is reduced. As a result, it is possible to avoid such a problem that the closing of the automobile door 2 is deteriorated.

Further, in forming the lip piece 8 integrally with the hollow seal portion 6, no special cost is required, so that the cost of the weather strip 3 is not increased.

As described above, one embodiment of the present invention has been described.
The present invention is not limited to this embodiment, and various modifications and changes can be made based on the technical idea of the present invention. For example, the shape of the lip piece 8 provided on the hollow seal portion 6 can be variously deformed as necessary, and the disposition portion may be appropriately located on the outer surface of the hollow seal portion and on the side inside the vehicle compartment. Can be changed.

[0026]

As described above, according to the present invention, the hollow seal portion
On the outer surface and on the side inside the vehicle cabin,
Extends in the direction that projects into the door opening due to elastic deformation
Lip piece, and a hollow seal when the car door is fully closed
As the part is pressed by the car door and elastically deformed,
The tip of the lip piece is deformed due to the elastic deformation of the hollow seal.
Move in the direction that protrudes into the door opening to
The door trim is arranged so that it comes into contact with the
When the car door is fully closed, the gap between the car door and the car body is
The inner panel of the car door is completely covered with the lip piece and the car
While preventing exposure to the room,
The inner panel of the car door is in contact with the
And the lip and door trim are
When the door is fully closed, the gap between the car door and the vehicle body can be covered with the lip piece, so that when the door is fully closed, Through this, it is possible to prevent the inner panel of the vehicle door from being exposed in the vehicle interior. For this reason,
When the automobile door is fully closed, the exposed portion of the inner panel of the automobile door can be covered with a lip so as not to impair the appearance. In addition, when the automobile door is opened, the elastic deformation of the hollow seal portion returns to its original state, and the amount of protrusion of the lip piece into the door opening is reduced. Therefore, when the vehicle door is opened , the amount of protrusion of the lip piece into the door opening can be reduced so as not to hinder the occupant when getting on and off.

In a state in which the automobile door is disposed at the fully closed position, the hollow seal portion and the inner panel of the automobile door abut against each other to seal at the abutting portion, and the lip piece and the door trim are provided. Are in contact with each other and a seal is also made at this contact portion,
The gap between the vehicle door and the vehicle body is sealed at two places (double seal), and such a double seal structure can improve sound insulation and waterproofness.

Further, with the adoption of the double seal structure as described above, the reaction force (elastic restoring force) acting on the automobile door from the hollow seal portion in response to the contact of the lip piece with the door trim is reduced. It is possible to avoid a problem that the door closes poorly.

Since the door inner panel is covered with the above-mentioned lip piece, it is not necessary to provide a bent piece or the like on the door trim for covering the door inner panel. It is possible to use a door trim of a simple shape that can easily perform the aligning operation.

[Brief description of the drawings]

FIG. 1 is a side view of a door portion of a four-wheeled vehicle provided with a vehicle weather strip according to the present invention.

FIG. 2 is an enlarged sectional view taken along line AA in FIG.

FIG. 3 is an enlarged sectional view of a weather strip for an automobile according to the present invention.

FIG. 4 is a cross-sectional view showing an arrangement structure of a conventional automobile weather strip.

FIG. 5 is a cross-sectional view showing another arrangement structure of a conventional automobile weather strip.

FIG. 6 is a sectional view showing still another arrangement structure of a conventional automobile weather strip.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Automobile door 2a Door inner panel 3 Weather strip for automobiles 4 Flange 5 Mounting part (opening trim part) 6 Hollow seal part 8 Lip piece 8a Tip part 9 Door opening 10 Door trim 12 Clearance P, Q seal point

────────────────────────────────────────────────── (5) References JP-A-59-40958 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60R 13/06 B60J 10/08

Claims (1)

(57) [Claims] 1. A motor vehicle having a mounting portion mounted on a vehicle body and a hollow seal portion projecting outward from the mounting portion and being elastically deformed by being pressed by the vehicle door when the vehicle door is fully closed. In the weather strip, a lip piece is provided on an outer surface of the hollow seal portion and at a position on the side in the vehicle interior, the lip piece extending in a direction protruding into a door opening due to elastic deformation of the hollow seal portion, As the hollow seal portion is pressed against the vehicle door and elastically deformed when the vehicle door is fully closed, the tip portion of the lip protrudes into the door opening due to the elastic deformation of the hollow seal portion. In such a way as to move in a direction and abut against a door trim disposed on an inner surface of the vehicle door.
And when the car door is fully closed, the car door and the
Completely close the gap with the vehicle body with the lip piece and
Prevents the inner panel of the vehicle door from being exposed in the passenger compartment
And the inner seal of the hollow seal portion and the automobile door.
The abutment and the abutment make contact with each other
And the lip and the door trim contact each other.
A weatherstrip for an automobile, wherein the weatherstrip is configured to be in contact with and seal at the contact portion .