JPH07125579A - Weather strip for automobile - Google Patents

Abstract

PURPOSE:To keep off a lowering of sealability between a trim part and a flange as this trim part tilts against the flange in time of caulking as well as to actualize such an assembling state as being excellent in appearance from the inside of a car room, in this weather strip whose section U-shaped trim part is assembled to the flange along an automobile sun roof opening by means of caulking. CONSTITUTION:A rib 55 coming into contact with the inner surface of a roof panel 1 is formed in an end situated at the inner surface side of a flange 11 of a section U-shaped trim part 51 of a weather strip 5, and at the time of caulking, such a possibility that the trim part 51 might be tilted in a direction where a clearance is produced between an end part 511 at the outside and a root part of the flange 11 is prevented from occurring, while it is urged to actualize such an assembling structure that the rib 55 is made to adhere closely to an inner surface of the roof panel 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip used for an automobile, and more particularly to a weather strip mounted along an opening edge of a sunroof.

[0002]

2. Description of the Related Art As shown in FIG. 1, a sunroof panel 1
In a sunroof of an automobile in which an opening 2 is formed in the opening 2 and a sunroof panel 3 is provided in the opening 2 to be openable and closable, a weather strip 5 is attached to an opening edge of the opening 2.

The weather strip 5 is an extruded body and is shown in FIG.
As shown in FIG. 3, a trim portion 51 having a U-shaped cross section in which a core metal 54 is embedded, a seal portion 52 that abuts on the peripheral edge of the sunroof panel 3, and the roof panel 1 is folded downward along the sunroof opening 2 at a substantially right angle. A lip-shaped holding portion 53 for holding the trim portion 51 on the flange 11 by sandwiching the bent flange 11 from both sides is provided.

As one of the means for assembling the weather strip 5, a U-shaped trim portion 51 of the weather strip 5 is used.
Is extruded into a shape in which the opening side is opened more than the final state of assembling, and the opening side of the trim section 51 is crimped with the flange 11 inserted in the trim section 51. A means for pressing the flange 11 by the holding portion 53 is used (Japanese Patent Laid-Open No. 2-3558).

[0005]

However, the trim portion 5
When 1 is crimped so as to sandwich the opening side thereof, as shown in FIG. 3, wrinkles are generated at the end portion 510 on the side surface of the trim portion 51 opposite to the seal portion 52, and the edge line becomes wavy. The appearance of the indoor roof is impaired. Further, the trim portion 51 may be tilted with respect to the flange 11 during crimping, and may be assembled in a tilted state. In this case, when the trim portion 51 is tilted in the direction of arrow A, a gap 6 is formed between the other end portion 511 of the trim portion 51 and the root portion of the flange 11, and rainwater and the like enter the trim portion 51 from there. It is not preferable.

In view of the above, the present invention has an object to prevent deterioration of appearance due to wrinkles in a weather strip assembled to a flange of a roof opening edge by caulking and to prevent inclination in a direction in which the above-mentioned gap occurs. It was made.

[0007]

As shown in FIG. 2, the present invention is located on the inner surface side of the flange 11 in the trim portion 51 of the weather strip 5 which is assembled to the flange 11 at the roof opening edge by caulking. It is characterized in that a rib 55 is formed which extends from the end portion in an inclined direction and abuts on the inner surface of the roof panel 1 when the trim portion is assembled.

[0008]

When the trim portion 51 is swaged, the rib 55 extending from one end of the trim portion 51 contacts the inner surface of the roof panel 1, and the other end portion 511 moves away from the roof panel 1 so that the trim portion 51 moves. Prevent it from falling. Also, rib 5
Since the leading edge of 5 is in close contact with the roof panel 1, the waviness of the leading edge is not noticeable.

[0009]

1 and 2 show an embodiment of the present invention. As shown in FIGS. 1 and 2 (A), a weather strip 5 for sealing between the opening edge and the sunroof panel 3 is attached to the opening edge of the opening 2 provided in the roof panel 1 of the automobile. is there. The weather strip 5 is mounted on a flange 11 which is formed by bending the roof panel 1 downward at a substantially right angle along the opening edge.

The weather strip 5 is an extruded body, and has a solid rubber trim portion 5 having a U-shaped cross section and a cored bar 54 embedded therein.
1 and a hollow seal portion 52 of sponge rubber that bulges from the outer surface of one side surface of the trim portion 51. Lip-shaped trim portion holding portions 53 sandwiching the flange 11 project from both sides of the inner facing surface of the trim portion 51. A rib 55 that extends obliquely outward is provided at the tip of the side surface portion of the trim portion 51 that faces the seal portion 52.

As shown in FIG. 2B, the weather strip 5 is extruded into a shape in which the opening side of the trim portion 51 is open. Then, the flange 11 is inserted into the trim portion 51, and the trim portion 51 is pushed up to a position where the rib 55 thereof comes into contact with the inner surface of the roof panel 1. In this state, the trim portion 51 is assembled to the flange 11 by crimping so that the opening side of the trim portion 51 is sandwiched by a crimping tool.

At the time of this caulking process, the trim portion 51 has the rib 5
5 is crimped in a state of being pressed against the inner surface of the roof panel 1. Therefore, depending on the degree of caulking, the trim portion 51 is not
Even if the force of falling in the counterclockwise direction of (A) acts, the rib 55
Is supported by the roof panel 1, so that it does not fall down. Therefore, the conventional gap 6 (FIG. 3) does not occur between the outer end portion 511 of the trim portion 51 and the root portion of the flange 11. In addition, the corrugation occurs at the tip portion of one side surface portion of the trim portion 51 in which the rib 55 is formed during crimping, but the corrugation is not noticeable because the tip edge is in close contact with the inner surface of the roof panel 1.

[0013]

According to the present invention, in a weather strip in which a trim portion is assembled to a flange of a sunroof opening of an automobile by a post caulking method, a sealing force between the trim portion and the flange is reduced during assembly. It is possible to prevent the occurrence of a large inclination. Further, the interior edge of the trim portion and the inner surface of the roof panel are in close contact with each other, and thus the appearance is good.

[Brief description of drawings]

FIG. 1 is a perspective view of an automobile to which a weather strip of the present invention is applied.

FIG. 2 (A) is a diagram of a weather strip of the present invention.
2B is a sectional view of the same weather strip along the line II-II, and FIG. 2B is a sectional view of the same weather strip before assembly.

FIG. 3 is a partial cross-sectional perspective view of a conventional weather strip in an assembled state.

[Explanation of symbols]

 1 Roof Panel 11 Flange 2 Opening 3 Sunroof Panel 5 Weather Strip 51 Trim Part 52 Sealing Part 53 Holding Part 54 Core Bar 55 Rib

Claims (1)

[Claims] 1. A weather strip assembled to a flange formed by bending a roof panel downward along an opening edge of a sunroof opening of an automobile, the trim portion having a U-shaped cross section and a cored bar embedded to cover the flange. The trim section is provided with a holding section formed on the inner facing surface of the trim section for sandwiching the flange, and a seal section formed on the side surface of the trim section facing the sunroof opening, and the trim section is installed with the flange inserted in the trim section. In a weather strip that is assembled by pressing the flange between the holding parts on both sides, the trim part assembly is extended at one end of the trim part, which is the inner surface side of the flange, in the direction inclined with respect to the side surface of the trim part. A weather strip for an automobile, characterized in that a rib that abuts an inner surface of the roof panel when formed is formed.