JP3107204B2 - Weatherstrip with deformation-proof insert - 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 a hollow body which is mounted on an inner peripheral portion of a door of an automobile to prevent dust and water droplets from entering the inside. .

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional hollow body weather strip has a hollow portion 5 of a hollow body weather strip.
The insert 4 made of soft rubber is locally fixed using a fixing means such as an adhesive to prevent deformation and improve the degree of sealing. However, when the vehicle runs, the door slightly vibrates as indicated by arrow A, and the outer wall 3 of the hollow weather strip also undergoes compression inflection. For this reason, the insert 4 is fixed and fixed in the inner wall portion 2 and the hollow portion 5 of the weather strip, but has a structure in which the insert is easily detached due to vibration inflection. Furthermore, since the soft rubber insert 4 to be fixed to the hollow body weather strip is operated from the outside in the assembling work, it is difficult to work to fix the soft rubber insert 4 and hold the fixed position. When the soft rubber insert 4 is inserted into the hollow portion 5 of the hollow weather strip with the work spatula, the soft rubber insert 4 is extended by the pressure of the working spatula and fitted into the hollow portion 5. Work is difficult. When it is adhered to the upper portion of the inner wall of the hollow portion as shown in FIG. 3, there is a disadvantage that the soft rubber insert 4 fixed and fixed increases the compressive load of the hollow weather strip and increases the door closing force. For this reason, a gap is formed between the opening surface of the door sash and the hollow body weather strip, and there is a problem that dust and water droplets enter the door sash main body from the gap.

[0003]

SUMMARY OF THE INVENTION The present invention is directed to a hollow weather strip having a hollow portion around an inner wall of an automobile door.
The soft rubber insert 4 fixed to the door sash is securely fastened without coming off, so that no gap is formed between the door sash and the hollow body weather strip. The purpose of this is to prevent intrusion.

[0004]

SUMMARY OF THE INVENTION A weatherstrip with an insert according to the present invention is mounted on a peripheral portion inside a door of an automobile, and is made of a soft rubber for preventing dust and water droplets from entering the inside. Extruded hollow body weather strip comprising:
Insert the insert (4) into the hollow part (5) at the corner of (8)
Then, the insert (4) is inserted into the inner wall of the hollow portion (5).
(2) is fixed with an insert pin (7),
(4) is made of soft rubber, and the insert pin (7)
Is made of rigid synthetic resin or hard rubber,
The insert pin (7) is inserted into the hollow part (5) of the corner.
Pin support pieces (7a, 7a) for fixing and fastening the insert (4)
b).

[0005]

Therefore, according to the present invention, the elastic insert 4 made of soft rubber and the insert pin 7 made of synthetic resin or hard rubber having high rigidity are integrally fixed to the inner wall portion 2 of the hollow weather strip, and the corner is provided. It is used so as to prevent deformation of the hollow body weather strip at the portion. For this reason, when the conventional hollow weather strip is attached to the opening or the corner of the automatic door sash, the insert pin 7 which is fixed and fastened without deforming the compression inflection caused by the vibration micro-movement in the automobile running is made of soft rubber. The insert body 4 and the hollow body weather strip are integrated with each other and have a function to keep the followability to the door sash opening and the corner part. Moreover, since the insert pin 7 is fixedly fastened to the insert 4 made of soft rubber via the hollow weather strip, the tightening strength is increased, so that the door closing cap can be removed without increasing the compressive load of the hollow weather strip. Enlargement can be suppressed. For this reason, when the weather strip with the deformation preventing insert is attached to the opening and the corner of the door sash of the automobile, no gap is formed in this portion, and the dust,
Water droplets and the like can be prevented from entering the door sash body.

[0006]

3 and 4 are views showing the position of a soft rubber insert 4 of a conventional hollow body weather strip. FIG. 3 shows an arbitrary position above the hollow corner. FIG. 4 shows a lower arbitrary position in FIG. FIG. 5 is a cross-sectional view of the corner portion, and shows a state where the soft rubber insert 4 and the insert pin 7 are integrated into the hollow body wall portion 2. It does not change the function of the weatherstrip in the general extrusion cross section. However, in the corner portion, since the soft rubber insert 4 is fixedly fastened to the inner wall portion, an effect of preventing deformation of compression inflection by bonding and fixing to the conventional hollow weather strip is obtained. FIG. 7 shows another embodiment, in which the cross section of the general straight portion is the same as that of FIG. 6, but in the corner portion, the insert pin 7 is fixedly fastened from outside the flexible outer wall portion. The lip portion 1 of the weather strip is more effectively prevented from being deformed. FIG. 8 shows an insert pin 7 according to the present invention in which the soft rubber insert 4 and the hollow weather strip are fixedly fastened by the pin support pieces 7a and 7b. FIG. 9 shows another insert pin according to FIG.

[0007]

According to the present invention, the hollow weather strip formed by extrusion molding and the insert 4 are integrally fixed and fastened with the insert pin 7 to form the hollow weather strip. The insertion body 4 is fixedly fastened to a portion where the deformation occurs, such as a corner portion, so that in a general straight portion, the thin flexible outer wall portion 3 is bent, and the compression load of the hollow body weather strip is reduced. In this case, the insert 4 is fixed and fastened by the insert pin 7 at the corner, so that it can be fixed at an arbitrary position by the hollow portion 5 and fixed and fixed by the conventional adhesive. In addition to the same deformation prevention function as the one that prevents deformation, no gap is created, dust and water droplets can be prevented from entering the door sash main body, and the man-hour for fixing work in place is reduced. I Cutting of the weather strip, since performed in an automated system at the same time as the drilling process, as a whole, was the reduction of man-hours.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of a vehicle.

FIG. 2 is a state diagram showing a weather strip in a conventional corner portion.

FIG. 3 is a diagram showing positions of upper and lower portions of a soft rubber insert of a hollow weather strip.

FIG. 4 is a diagram showing positions of upper and lower portions of a soft rubber insert of a hollow weather strip.

FIG. 5 is a sectional view showing an embodiment of the present invention.

FIG. 6 is another cross-sectional view.

FIG. 7 is a cross-sectional view showing another embodiment of the present invention.

FIG. 8 is an insert pin used in the embodiment of the present invention.

FIG. 9 is another insert pin according to FIG. 8;

[Explanation of symbols]

 2 inner wall part 3 outer wall part 4 soft rubber insert 5 hollow part of hollow body weather strip 6 mounting part of hollow body weather strip 7 insert pin 7a insert pin support piece 7b insert pin support piece 8 hollow body weather strip

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Sakuma 1-64, Boshuyama, Yokone-cho, Obu-shi, Aichi Prefecture Inside Kasei Kogyo Co., Ltd. Chemical Industry Co., Ltd.

Claims (1)

(57) [Claims] We claim: 1. attached to the inside of the peripheral portion of the vehicle door, dust, in the hollow body weather strip comprising extrusion of a soft rubber for preventing such water droplets entering therein, the hollow body weather Co on the strip (8)
Insert the insert (4) into the hollow part (5) of the
Insert the insert (4) into the inner wall (2) of the hollow part (5).
The insert (4) is made of soft rubber,
Pin (7) is made of synthetic resin or hard rubber with high rigidity
And the insert pin (7) is a hollow part of the corner part.
(5) A pin support piece for fixing and fixing the insert (4).
A weatherstrip with a deformation preventing insert , comprising (7a, 7b) .