JP3057136B2 - 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 an automobile.

[0002]

2. Description of the Related Art As shown in FIG. 6, a weather strip 1 is mounted on an edge of a door opening of a body panel of a hard-top vehicle, and a lower end (arrow A) of a rising portion 1a on the rear side of the weather strip 1 is provided. An enlarged view of the front side is shown in FIG. 7, and an enlarged view of the back side of the lower end is shown in FIG. The lower end of the rising portion 1a is connected to the molded portion 3 at the lower end of the extruded portion 2. The cross section of the extruded portion 2 taken along the line B'-B 'is a seal portion as shown in FIG. An intermediate bridge 11 is provided in the hollow portion 10a of the ten.
On the other hand, the mold part 3 corresponds to FIG. 10 (C′-C ′).
As shown in FIG. 11 (D'-D 'arrow cross section), as shown in FIG. An intermediate bridge cannot be provided in the hollow portion 12a of the seal portion 12 unlike the seal portion 10 of the extrusion molding portion 2.

For this reason, the rigidity of the seal portion 10 of the extrusion molding portion 2 and the seal portion 12 of the mold molding portion 3 becomes greater than the latter due to the presence of the intermediate bridge 11, and the rigidity when the former contacts the door at the time of closing. The sealing pressure of the small molded part 3 was small, causing water leakage. As a countermeasure,
Conventionally, the pad 13 is inserted into the hollow portion 12a of the seal portion 12 from the center hole 14 to increase the rigidity of the mounting seal portion 12 and eliminate the difference in rigidity between the extruded portion 2 and the seal portion 10. It was trying to prevent water leakage.

[0004]

However, as described above, mounting the pad 13 in the hollow portion 12a of the seal portion 12 of the molded portion 3 requires a lot of man-hours and increases the cost. Was. Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and is configured to eliminate the difference in rigidity between the molded part and the extruded part without inserting a pad into the hollow part of the molded part. It is an object of the present invention to provide a weather strip for automobiles in which the cost and cost are reduced.

[0005]

In order to achieve the above object, the structure of the invention described in claim 1 is as shown in FIG.
To be mounted on the edge of the body panel door opening
In the weather strip 1 of FIG.
Connected to the end of the extruded part 2 in the
The molded part 3 extending past the end is the seal
A hollow portion 6a continuous in the longitudinal direction on the outdoor side in cross section is formed in the portion 6.
As well as intermittently in the longitudinal direction on the indoor side
A lightening portion 7 is formed, and the lightening portion 7 and the hollow portion 6 are formed.
and a hollow bridge 8 is formed between them.
Further, as shown in FIG. 1, in the construction of the invention according to the second aspect, the end of the extruded part 2 of the weather strip 1 is mounted on the weather strip 1 of the automobile mounted on the edge of the door opening of the body panel. The molded part 3 connected to the seal part 6 and extending beyond the retainer end forms a hollow part 6a that is continuous in the longitudinal direction in substantially half of the cross section of the outside of the seal in the seal part 6 and also has a substantially hollow part on the indoor side. A plurality of lightening portions 7 are formed intermittently in the longitudinal direction in half, and a hollow bridge 8 is formed between the lightening portion 7 and the hollow portion 6a.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the weather strip 1 shown in FIG.
Shows the rear of the lower end portion of the rising portion 1a (arrow A) the back surface side of (FIG. 8 corresponding to FIG), FIG. 2 is its B-
FIG. 3 is a cross-sectional view taken along the arrow C-C, and FIG.
FIG. 5 is a sectional view taken along arrow EE. That is, FIG. 2 shows a cross section of the extruded portion 2 at the lower end of the rising portion 1a, and FIGS. 3 to 5 show respective cross sections of the molded portion 3 connected to the lower end of the extruded portion 2. .

[0007] As shown in FIG.
An intermediate bridge 5 is provided substantially at the center of the hollow portion 4a of the seal portion 4. As shown in FIG. 3 to FIG.
A hollow portion 6a that is continuous in the longitudinal direction is formed in substantially half of the cross section on the outdoor side of the seal portion 6, and a plurality of lightening portions 7 are formed intermittently in the longitudinal direction in approximately half of the indoor side. An intermediate bridge 8 is formed between the hollow portion 6a and the lightening portion 7, and a rib 8a is formed between the lightening portions 7. The hollow portion 6a has a center hole 9 formed therein.

In other words, the mold part 3 is provided with a lightening part 7 in order to prevent surface gas flaws occurring in the seal part 6 and is formed in a structure that is easy to mold. Further, since the seal portion 6 forms the lightening portion 7 and the intermediate bridge 8 as described above, the rigidity is substantially equal to the seal portion 4 of the extruded portion 2 provided with the intermediate bridge 5, and the door is closed. In some cases, water leakage due to insufficient sealing pressure caused by a difference in rigidity unlike the conventional case does not occur. In addition to the part A shown in FIG. 6, the present invention can be similarly applied to the molded parts of the parts B and C and the molded part of the weather strip of the rear door (not shown).

[0009]

As described above, the weather strip for an automobile according to the present invention has a structure in which a molded portion is formed into a structure that is easily molded, and a seal portion thereof is formed in the weather strip mounted on the opening edge of the door. Since it is formed so that its rigidity is substantially equal to that of the sealing portion of the extruded portion, it is not necessary to insert a pad into the hollow portion as in a conventional molded portion, and the cost is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a rear surface side of a portion indicated by an arrow A in FIG. 6 in a molded portion of an automotive weather strip of the present invention.

FIG. 2 is a sectional view taken along the line BB in FIG.

FIG. 3 is a sectional view taken along the line CC of FIG. 1;

FIG. 4 is a sectional view taken along line D-D in FIG.

FIG. 5 is a sectional view taken along the line EE in FIG. 1;

FIG. 6 is a side view of a weather strip mounted on an opening edge of a door of an automobile.

FIG. 7 is a perspective view showing a surface side of a portion indicated by an arrow A in FIG. 6;

8 is a perspective view showing a conventional case on the back surface side of a portion indicated by an arrow A in FIG. 6, and is a view corresponding to FIG.

FIG. 9 is a sectional view taken along the line B′-B ′ in FIG. 6;

FIG. 10 is a sectional view taken along the line C′-C ′ in FIG. 6;

11 is a sectional view taken along the line D'-D 'in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Weather strip 1a Rising part 2 Extruded part 3 Mold part 4 Seal part 4a hollow part 5 Intermediate bridge 6 Seal part 6a hollow part 7 Lightening part 8 Intermediate bridge 8a Rib 9 Medium core hole 10 Seal part 10a hollow part 11 Intermediate bridge 12 Seal part 12a Hollow part 13 Pad 14 Center hole

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-227896 (JP, A) JP-A-63-131251 (JP, A) JP-A-2-21067 (JP, U) JP-A-2-227 81253 (JP, U) JP 6-6114 (JP, U) JP 6-75842 (JP, U) JP 2 123422 (JP, U) JP 59-146212 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60R 13/06 B60J 5/00 501 B60J 10/08

Claims (2)

(57) [Claims] In a weather strip of an automobile mounted on an opening edge of a door of a body panel, a sealing portion of a molding portion connected to an end of an extrusion molding portion of the weather strip has an outdoor section in cross section . Forming a hollow part continuous in the longitudinal direction, forming a plurality of lightening parts intermittently in the longitudinal direction on the indoor side , and forming a hollow bridge between the lightening part and the hollow part A weatherstrip for an automobile, characterized in that the weatherstrip is formed. 2. A weather strip of an automobile mounted on an edge of a door opening of a body panel, wherein a sealing portion of a molded portion connected to an end of an extruded portion of the weather strip has an outdoor section in cross section. While forming a hollow part continuous in the longitudinal direction in substantially half, and forming a plurality of lightening parts intermittently in the longitudinal direction in substantially half of the indoor side, and between the lightening part and the hollow part A weather strip for an automobile, wherein the weather strip is formed by forming a hollow bridge.