JP2906916B2 - 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 for sealing an opening of an automobile body, and more particularly to a technique for improving a sealing property and a sound insulation property of a hollow seal portion pressed against a convex edge of an automobile body. Things.

[0002]

2. Description of the Related Art As shown in FIG. 5, a weather strip for a door of an automobile, for example, is mounted on a peripheral edge of a door panel 1 and pressed against an automobile body 2 in a closed state to open a door opening 3.
Is to be sealed. As shown in FIG. 6, a conventional weather strip W50 for a door includes a door panel 51.
And a hollow seal portion 56 pressed against a protruding edge 55 of the vehicle body 52.
Reference numerals 4 and 56 are integrally extruded with sponge rubber.

[0003]

However, according to the conventional weather strip W50, when the hollow seal portion 56 is pressed against the convex edge 55, the hollow seal portion 56 is attached to the convex edge 55 .
The whole part from the root to the pressure contact part is made of sponge rubber
Therefore , it tends to be deformed so as to be entirely crushed and hardly deformed so as to enclose the convex edge 55. In addition, if there is a variation in installation, the hollow seal portion 56 does not properly press against both side surfaces of the protruding edge 55, and particularly, one side is largely opened to form a gap G, and the sealing performance at that location is deteriorated. There was a point. Also, since the entire hollow seal portion 56 is formed of sponge rubber, the sound insulation becomes insufficient,
There was also a problem that the noise from outside the vehicle A easily entered the inside of the vehicle B. In addition, from the root part of the hollow seal part 56 to the pressure contact part
If the whole is made of solid rubber having excellent sound insulation, another problem that flexibility is impaired and door closing force becomes excessive is caused.

[0004] Therefore, an object of the present invention is to improve the sealing and sound insulation of a hollow body by improving the sealing performance and the sound insulation performance by pressing the pressing parts against both side surfaces of the convex edge of the vehicle body without impairing the flexibility of the hollow sealing part. It is to provide a weather strip.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a door attached to a periphery of a door panel.
A rim portion and a hollow seal portion connected to the trim portion.
In the automotive weather strip, the trim part
Sponge rubber at the root of the hollow seal
And presses against the convex edge of the periphery of the door opening of the car body.
The pressure contact part of the hollow seal part to be in contact is formed of sponge rubber
And a solid rubber intermediate portion between the pressure contact portion and the base portion.
It is characterized in that a deformed portion is provided. The hardly deformable portion can be provided on one side or both sides of the press contact portion. When provided on one side, the hardly deformable portion is provided on a side where a gap is easily formed with respect to the side surface of the convex edge of the automobile body.

Further, it is preferable to form a concave portion in a portion adjacent to the hardly deformable portion in the press contact portion or the base portion .

[0007]

According to the weather strip of the present invention, when the pressure contact portion of the hollow seal portion presses against the convex edge of the automobile body,
Since the hardly deformable portion made of solid rubber that is difficult to deform acts to support the edge of the sponge rubber press-contact portion that is easily deformed, the press-contact portion deforms so as to wrap the convex edge and both sides of the convex edge Pressure contact with no gap. In addition, the hardly deformable portion made of solid rubber having excellent sound insulation properties forms a sound insulation wall in a state of rising from the convex edge, and effectively suppresses the intrusion of noise. In addition,
The solid rubber hardly deformable part is provided only in a part of the sponge rubber , especially the hollow seam rising from the trim part.
The base of the head is made of sponge rubber that is easily deformed.
Because there, the overall flexibility of the hollow seal portion is not almost intact, the door closing force hardly increases.

Further, in the case of forming a recess in the adjacent portion between the hard-to-deform portion in pressure contact portion or the root portion, the deformation of the pressure contact portion or the root portion is more easily in the recess, the entire hollow seal portion flexibly Sex is further maintained or improved, and the door closing force is properly maintained or reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention is embodied as a weather strip for a door which is mounted on a peripheral edge of a door panel 1 and pressed against an automobile body 2 in a closed state to seal a door opening 3 as shown in FIG. An embodiment will be described with reference to FIGS.

In the weather strip W1 for a door according to the first embodiment shown in FIGS. 1 and 2, the trim portion 4 and the hollow seal portion 6 are integrally extruded with sponge rubber.
The trim portion 4 has a locking lip 7 locked to the door panel 1.
And a seal lip 9 that contacts the roof drip 8 of the vehicle body 2. The hollow seal part 6 includes a root part 10 rising from the trim part 4 and a pressure contact part 11 for pressing against the convex edge 5 of the automobile body 2 .
Made of ponge rubber.

Between the base 10 and the pressure contact portion 11, the hollow seal portion 6 is coextruded with two hardly deformable portions 12 made of solid rubber. Concave portions 13 are formed on the inner surface of the press contact portion 11 adjacent to the hardly deformable portions 12, and the thickness of both edges of the press contact portion 11 is reduced by these concave portions 13. In FIG. 2, reference numeral 14 denotes a door glass, and 15 denotes a door glass run.

When the door panel 1 is closed in the door weather strip W1 constructed as described above, as shown in FIG.
To seal the door opening 3. At this time, the hardly deformable portion 12 made of solid rubber that is hardly deformed acts to support both edges of the press contact portion 11 made of sponge rubber that is easily deformed, and the concave portions 13 on both edges prevent deformation of the press contact portion 11. In order to act so as to assist, the press contact portion 11 is bent and deformed so as to surround the convex edge 5 with the concave portion 13 as a boundary, and presses against both side surfaces of the convex edge 5 without any gap. Therefore, the sealing performance of the door opening 3 is improved, and it is possible to reliably prevent water or dust from entering the interior B from the exterior A.

Further, since the hardly deformable portion 12 made of solid rubber having excellent sound insulation properties forms a sound insulation wall on both sides of the press contact portion 11 in a state of standing up from the protruding edge 5, the inside of the vehicle B from the outside of the vehicle A to the inside of the vehicle B
Intrusion of noise into the vehicle can be effectively suppressed. In addition, the hardly deformable portion 12 is provided only on a part of the sponge rubber, and particularly, a hollow seal rising from the trim portion 4.
The base 10 of the part 6 is formed of sponge rubber which is easily deformed.
Since the pressure contact portion 11 is easily deformed by the concave portion 13, the flexibility of the entire hollow seal portion 6 is not impaired or improved, so that the door closing force can be properly maintained or improved. Can be reduced.

[0014] Then, the door weather strip W2 of the second embodiment shown in FIG. 3, the base portion 10 not contact portion 11 only
The concave portion 1 is also provided on the inner surface of the portion adjacent to each hardly deformable portion 12 in
The third embodiment differs from the first embodiment in that the third embodiment is formed. According to the weather strip W2 for a door, in addition to the same effects as in the first embodiment,
Since the flexibility of the entire hollow seal portion 6 is further improved, the door closing force can be reduced.

Next, the weather strip W3 for a door according to the third embodiment shown in FIG. 4 has a single hard rubber hardly deformable portion 12 only between the root portion 10 and the press contact portion 11 on the inside of the vehicle. Is provided, and the point that the concave portion 13 is omitted is different from the first embodiment. The weather strip W3 for the door also deforms the pressure contact portion 11 so as to envelop the convex edge and presses against both side surfaces (particularly, the side surface inside the vehicle), so that the sealing performance can be improved and
The sound-insulating wall is formed inside the vehicle by the hardly deformable portion 12, so that the intrusion of noise can be effectively suppressed. Further, since there is only one hardly deformable portion 12, the flexibility of the entire hollow seal portion 6 is hardly impaired, and even if the concave portion is not provided,
The door closing force hardly increases.

In addition, the present invention is not limited to the above-described embodiment, and may be embodied by appropriately changing the shape and configuration of each part without departing from the spirit of the present invention, for example, as follows. It is. (1) The concave portion 13 is formed on the outer surface of the root portion 10 or the press contact portion 11.

[0017]

As described above in detail, according to the weather strip for an automobile according to the first aspect of the present invention, the pressure contact portion of the hollow seal portion is formed on the convex edge of the automobile body without substantially impairing the flexibility of the hollow seal portion. It has an excellent effect of being able to improve the sealing performance and the sound insulation performance by being pressed against both side surfaces of the base material.

Further, according to the weather strip for an automobile according to the second aspect of the present invention, the flexibility of the hollow seal portion can be maintained or improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a weather strip for a door according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 5, showing a mounting state of the weather strip.

FIG. 3 is a sectional view showing a weather strip for a door according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing a weather strip for a door according to a third embodiment of the present invention.

FIG. 5 is a side view of the automobile showing a mounting location of a weather strip for a door.

FIG. 6 is a sectional view showing a conventional weather strip for a door.

[Explanation of symbols]

 2 Automobile body 5 Convex edge 6 Hollow seal part 10 Base part 11 Pressure contact part 12 Difficult-to-deformate part 13 Concave part W1, W2, W3 Weather strip for door

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60J 10/08 B60R 13/06

Claims (2)

(57) [Claims] 1. A door panel (1) attached to a periphery of the door panel (1).
Trim part (4) and a hollow connected to the trim part (4)
Automotive weather strip with a seal (6)
The hollow shell rising from the trim part (4).
The base part (10) of the tool part (6) is made of sponge rubber
And the rim of the door opening (3) of the car body (2)
Pressing part of the hollow seal part (6) pressed against the edge (5)
(11) is formed of sponge rubber, and the pressure contact portion (11) is formed.
Solid rubber hard-to-deformation part between the base and the base (10)
(12) A weather strip for an automobile, wherein the weather strip is provided. 2. The pressing part (11) or the root part (10).
The concave portion (1 ) is formed in a portion adjacent to the hardly deformable portion (12).
The weatherstrip for an automobile according to claim 1, wherein ( 3) is formed.