JP2596403Y2 - 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 a door frame of a front door of an automobile and seals a space between a door opening of a vehicle body and the door frame.

[0002]

2. Description of the Related Art As shown in FIG. 4, in a front door 1 of an automobile having a door frame 10 surrounding a door glass 2, a weather strip is attached along the door frame 10. As shown in FIG. 5 (showing a cross section along the line AA in FIG. 4), the weather strip 3 includes a mounting base 31 mounted on the door frame 10 and a hollow sealing portion 32 protruding from the base 31. Have. In the drawing, reference numeral 4 denotes a center pillar, and 10A denotes a door frame of a rear door.

As shown in FIG . 6, a corner 3C at the upper rear end of the weather strip 3 has a base 3 having substantially the same cross-sectional shape.
It is formed by connecting the extruded weather strips 3A and 3B having the first and seal portions 32 by molding.

In recent years, the door frame 10 has been made generally thinner to improve the appearance around the door, and the portion along the center pillar 4 tends to gradually widen downward. For this reason, when the weather strip 3 is attached to the door frame 10, a protruding portion P protruding rearward from the door frame 10 is generated at the tip of the seal portion 32 in the corner portion as shown in FIG. 7. .

In view of this, as shown in FIG. 1, the vertical side of the molded portion 3C of the corner is extended as compared with the conventional case, and the size of the seal portion 32 is increased so that the front end thereof substantially matches the rear edge of the door frame 10. The weather strip has been used in which the size of the weather strip is gradually increased downward.

[0006]

However, the rear edge of the thin door frame 10 and the sealing portion 32 of the weather strip 3 are not provided.
The following problem arises when the tip is matched.
This will be described with reference to FIG. When the hollow sealing portion 32 of the weather strip 3 is pressed against the outer end surface of the center pillar 4 when the door is closed, the hollow sealing portion 32 is attached to the rear edge of the door frame 10.
The mounting base 31 of the weather strip 3 is located on the outer end surface.
The front end of the seal portion 32 is pushed upward (outside the vehicle) and is bent so as to rotate around the root portion (shown by broken lines). And when the door opens welfare in original tip moves along a locus indicated by the line 1 _1. However, the seal portion 32 is severed due to repeated opening and closing of the door , gradually loses its shape restoring force, and remains in a bent state. Because of this, the tip of the seal portion 32 is displaced backward from its original position, and the trajectory of the tip when the door is opened and closed is indicated by a line 1
₂ and may interfere with the door frame 10A of the rear door. Note that the above interference can be avoided by further reducing the size of the entire seal portion 32, but this does not provide sufficient sealing performance.

SUMMARY OF THE INVENTION In view of such circumstances, in the present invention, in a weather strip to be attached to a door frame of a front door, even if the weather strip is used for a long period of time, the seal does not interfere with the door frame of the rear door when the door is opened and closed. The task was to do.

[0008]

The present invention solves the above-mentioned problems by improving the shape of the seal portion 32 at the upper portion of the vertical portion of the weather strip facing the center pillar, as shown in FIG. As shown in FIG.
2, two bent portions 33a, 33b projecting outward in the hollow direction are formed at locations opposed to each other in a direction intersecting the pressing direction against the center pillar 4, and both bent portions 33 are formed.
a, 33b, a portion 321 connecting the bent portion 33a on the front side of the door with respect to the pressing direction and the mounting base portion 31 with respect to the pressing direction is inserted into the hollow in a direction in which the both bent portions face each other.
A portion 324 connecting the bent portion 33b on the rear side of the door and the mounting base 321 is made thicker than other portions of the seal portion 32, and the seal portion 32 is formed as a center pillar. 4, the two bent portions 33a and 33b and the V-shaped portion 321 are deformed in the crushing direction.

[0009]

When the door is closed and the front end of the seal portion is pressed against the center pillar, the seal portion is deformed so as to be entirely compressed. Particularly, the V-shaped portion 321 is deformed so as to be crushed together with the bent portions 33a and 33b . At this time, due to the tension of the portion 324, the entire sealing portion 32 is given a turning power toward the front side of the door around the mounting base 31 . Therefore, when the door of the seal portion 32 is closed,
The displacement to the rear side of the door is extremely small, and even if settling occurs over time, there is no possibility that the door will interfere with the door frame 10A when the door is opened and closed.

[0010]

1 to 3 show an embodiment of the present invention. As shown in FIG. 1, the corner at the upper rear end of the weatherstrip 3 is formed by a molded part 3C connecting the extruded weatherstrips 3A and 3B. Weather strip 3
A includes a hollow mounting base 31 and a sealing portion 32, and a fin portion. The weather strip 3B has a mounting base 31 having substantially the same shape and size as the weather strip 3A.
And a hollow seal portion 32 larger than the weather strip 3A.

The molded part 3C is entirely hollow, and the mounting base 31 has the same cross-sectional shape as the bottom of the mounting base 31 of the weather strips 3A and 3B. The seal portion 32 of the molded portion 3C has substantially the same outer cross-sectional shape as the weather strip 3A in the horizontal portion, but has a small upper end (narrower) corresponding to the shape of the door frame 10 (FIG. 1) in the vertical portion. ), Weather strip 3B
To be connected to

The shape of the seal portion 32 at the upper portion of the vertical portion of the weather strip 3 facing the center pillar 4, that is, at the vertical portion of the molded portion 3C is as shown in FIG. In the direction intersecting the pressing direction (the direction of arrow D) against the center pillar 4, the bent portions 33 a and 33 b having a rectangular cross section projecting outward in the hollow direction and having a thin wall are formed on both side surfaces facing each other in the front and rear directions. It is. A section 321 connecting the lower end of the attachment base 31 attached to the door frame 10 (the inside end in the vehicle width direction) and the front side of the door, that is, the section 321 connecting the bent portion 33a inside the vehicle, has a cross section V protruding into the hollow.
There is a character shape. The V-shaped portion 321 is
a, 33b protrude in the direction along the facing direction.
The bent portion 33a inside the vehicle and the rear side of the door, that is, the bent portion 33b outside the vehicle, are connected to the bent portion 33a and
Are connected by an L-shaped portion composed of a slightly curved side 322 that abuts on and a substantially straight side 323 that is connected to the bent portion 33b. The bent portion 33 b and the upper end of the mounting base 31 are connected to the side 32 which is thicker than other portions of the seal portion 32.
Connect with 4. Edge 323 is a substantially parallel to the direction pressing the seal portion 32 (arrow D), the door frame 10
Slightly is a front side of the opening and closing trajectory 1 ₃ of the rear end of the. The bent portion 33b is located slightly outside in the vehicle width direction than the bent portion 33a.

The V-shaped portion 321 projects in the hollow direction and in a direction intersecting the pressing direction of the seal portion 32.

The weather strip 3 constructed as described above
3, when the door is closed, as shown in FIG. 3, the seal portion 32 of the vertical portion of the molded portion 3C is
2 is pressed against the center pillar 4. Thereby, the seal portion 32 is relatively pushed up, the bent portions 33a and 33b are further bent, the V-shaped portion 321 is further bent, and the entire seal portion 32 is deformed in a direction to be compressed. In particular, a V-shaped portion 321 is formed and deformed to collapse,
And since the edges 324 opposite to the V-shaped portion 321 are given rigidity as thick, de the distal end side of the seal portion 32
(1) Gives a turning force to the front side , so the tip side is displaced backward .
To prevent the. Thus, the seal portion 32 is
It does not protrude from the room 10.

[0015]

According to the weather strip 3 of the present invention, the top end of the seal portion 32 is not displaced rearward when pressed against the center pillar 4 at the upper part of the vertical portion facing the center pillar 4. Even if settling occurs due to use, the seal portion 32 does not interfere with the door frame 10A of the rear door when the door is opened and closed.

[Brief description of the drawings]

FIG. 1 is a side view of a portion from a corner portion to a vertical portion of a weather strip of the present invention.

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

FIG. 3 is a cross-sectional view showing a state in which the weather strip of the present invention is deformed by being pressed against the center pillar.

FIG. 4 is a side view of an automobile in which a weather strip is mounted around a door frame.

FIG. 5 is a diagram showing a cross section of the conventional weather strip in a mounted state and a cross sectional shape at the time of deformation at a position along the line AA in FIG. 4;

FIG. 6 is a side view of a portion from a corner portion to a vertical portion of a conventional weather strip.

FIG. 7 is a view showing a problem at the time of attaching the conventional weather strip shown in FIG. 6 to a door frame.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Front door 10 Door frame 3 Weather strip 3C Corner part (mold forming part) 31 Mounting base 32 Seal part 33a, 33b V-shaped bent part 321 V-shaped part 324 Thick part 4 Center pillar

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 1-172912 (JP, U) JP-A 62-65312 (JP, U) JP 2-74222 (JP, U) JP 2 56021 (JP, U) Shokai 62-124030 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60J 10/08 B60R 13/06

Claims (1)

(57) [Scope of request for utility model registration] 1. A weather strip which is attached in series along a door frame of an automobile front door and has a mounting base and a hollow sealing portion protruding from the mounting base. At the upper part of the vertical part facing the center pillar, the seal part whose tip is pressed against the center pillar has a bent section with a rectangular shape protruding outward in the hollow direction at the location facing the center pillar in the direction that intersects the pressing direction. part was formed, and, of the two bent portions, a portion connecting the bending portion and the mounting base of the door front side with respect to the pressing direction, into the hollow in said two bent portions are opposed
And forming a V-shaped cross section projecting in a direction substantially along a direction, a portion connecting the bending portion and the mounting base of the door the rear side, formed thicker than other portions of the sealing portion, the sealing portion center A weather strip for an automobile, wherein the bent portion and the V-shaped portion are deformed in a crushed direction when pressed against a pillar.