JPH0211231Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to the installation shape of a weather strip provided to prevent water leakage, such as rainwater, from an automobile.

[Background of the idea]

For example, weather strips on automobiles are installed around openings such as front and rear windows, doors, and luggage gauges to block water, dust, and sound. Generally, they are made of synthetic resin such as elastic rubber or sponge rubber, and are shaped and cross-sectioned according to their functions. For example, as shown in FIG. 1, a weather strip 2 is also provided on a hatchback type door 1 provided at the rear of an automobile.
Rainwater, water from car washing, etc. may enter the inside of these weather strips 2 and accumulate therein. If this water continues to not be discharged, metal rust and other material deterioration may occur in the contacting portions of the weather strip 2, which is undesirable. Furthermore, if water remains accumulated in the weather strip 2, the water will travel through the weather strip 2, causing water leakage into the body. Therefore, it was necessary to drain the water accumulated in the weather strip 2 to prevent deterioration such as rust, and at the same time reduce the water pressure within the cross section to prevent water leakage. These conventional technologies include:
For example, as shown in FIG.
A part of the inner lip 3 is cut out to form a water drainage part, and water is discharged from this cutout part 4. However, in this method, there is a great risk that the metal insert of the weatherstrip will be scratched and rusted during the notch operation. Further, since the notch position is located inside the cross section of the weather strip, the notch work is difficult to perform and productivity is poor. Furthermore, the workability of the notch work is poor, so notch work cannot be performed on all types of vehicles, and this conventional method has been difficult to apply. Furthermore, as a conventional technique for preventing water from entering into the cross section of the weather strip 2, there was a method of filling the cross section of the weather strip 2 with a filler such as a sealer 5 to prevent water from entering into the cross section of the weather strip. However, the use of fillers such as the sealer 5 as auxiliary materials complicates the work of attaching the weather strip 2 and also makes the product expensive.

In addition, some weather strips have a notch in the foot of the U-shaped part, but the internal core metal tends to rust, and there are also problems with rainwater flowing backwards.
(For example, see Japanese Utility Model Application No. 57-35148.)

[Purpose of invention]

The present invention was devised in view of the above-mentioned problems, and its purpose is to improve the workability of attaching the weather strip without damaging the metal insert when providing a water drain part to the weather strip. You can freely choose the location of the drainage part, and it can be installed on many car models.
To provide a weather strip having a water drain part capable of dealing with water intruding into the cross section of the weather strip without using an auxiliary material such as a sealer.

[Structure of the idea]

The outline of this invention is that when installing a weather strip, the outer leg of the weather strip is bent outward along with the metal insert inside the synthetic resin at a specific location around the opening where the water drainage section is to be provided. It forms a water drainage part. That is, the gist of the present invention is a weather strip made of synthetic resin, which has a U-shaped part that pinches the opening edge, and has a metal insert inside the resin of the U-shaped part itself. In the case where the foot portion of the U-shaped portion has a lip for pressing the opening edge on the inner surface thereof, the foot portion on the outside side of the U-shaped portion presses the synthetic resin at a specific location around the opening of the vehicle body. and a weather strip having a water drain portion, characterized in that the lip is bent outward together with the metal insert to form a water drain portion away from the opening edge.

[Example of idea]

A first embodiment of the present invention will be described with reference to FIGS. 1, 5, and 6. This embodiment is implemented for a hatchback type door 1 provided at the rear of an automobile. This weather strip 2
is made of elastic rubber. The deformable portion 11 having a cylindrical cross section is crushed and deformed when the hatchback door 1 is closed, and its elastic force keeps the door watertight and airtight. A U-shaped portion 12 exists below the deformed portion 11. Inside the resin of this U-shaped portion 12, there is an insert 13 having a similar U-shaped cross section. Further, two pairs of left and right lips 4 are provided on the inner surface of the foot portion of the U-shaped portion 12. At the edge of the opening of the hatchback door 1 there is a body flange 6 which is arranged perpendicularly to this opening.
The body flange 6 is inserted into the U-shaped portion 12, and the lip 3 is strongly pressed against the body flange 6 to maintain watertightness and airtightness. Furthermore, the weather strip 2 has a flange 14 formed on the outside of the opening, further enhancing its waterproof function. Then, at a specific location around the opening, that is, location A shown in FIG. 1, a metal insert 1 having a U-shaped cross section is inserted.
3 is bent toward the outside of the opening together with the resin of the outer leg portion of the U-shape. This bending operation is carried out by mechanical force when the weather strip 2 is installed in the opening of the hatchback door. As a result, a water drainage portion is formed at the location A shown in FIG. 1, and rainwater, etc. accumulated within the cross section of the weather strip 2 is discharged to the outside of the opening. In addition,
Location A is selected at an arbitrary location around the entire circumference of the weather strip 2. The shape of the weather strip 2 itself used in this embodiment is the same as that of the conventional one, and a water drain portion is formed during the weather strip installation work.

[Other Examples]

In the first embodiment, the weather strip 2 is installed on the body flange 6, so it is perpendicular to the opening 11.
It doesn't necessarily have to be vertical. As in the second embodiment shown in FIGS. 7 and 8 below, the weather strip 2 can also be installed horizontally with respect to the opening 1. In this second embodiment, the lower side in FIG. 7 is the outer side of the body, and the lower part of the insert having a U-shaped cross section is bent outward to form a water drainage part. ing.

[Effect of idea]

According to the weather strip having a water drain part of the present invention, the metal insert will not be damaged by the notch work, and the water drain part can be easily formed by mechanical external force, so that the workability by the notch work is improved. This also prevents deterioration of water and drains can be easily formed at any location, so the location of the drain can be easily selected for any type of vehicle. Also, auxiliary materials such as sealer are not required.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of an opening where a weather strip is installed, Fig. 2 is an enlarged perspective view of the weather strip shown in Fig. 1, and Fig. 3 shows a conventional water drain section and a Fig. 4 is a cross-sectional view showing one of the conventional techniques for preventing the infiltration of rainwater, etc., compared to Fig. 2, Fig. 5 is a cross-sectional view showing a water drain part of a weather strip according to an embodiment of the present invention, and Fig. 6. 5 is a perspective view of a weather strip having a water drain portion shown in FIG. 5, FIG. 7 is a sectional view of a water drain portion of a weather strip according to another embodiment, and FIG. 8 is a perspective view of the weather strip shown in FIG. 7. DESCRIPTION OF SYMBOLS 1... Hatchback type door, 2... Weather strip, 3... Lip, 4... Notch, 5... Sealer, 11... Deformed part, 12... U-shaped part, 13
...Insert, 14...Tsubabe.

Claims (1)

[Scope of utility model registration request] A weather strip made of synthetic resin, having a U-shaped part that pinches the opening edge,
The U-shaped part itself has a metal insert inside the resin, and the inner surface of the foot of the U-shaped part has a lip for pressing the opening edge,
The outer leg of the U-shaped portion is bent outward together with the synthetic resin and metal insert at a specific location around the opening of the vehicle body, so that the lip separates from the edge of the opening to form a water drainage portion. A weather strip with a water drainage part.