JP3365932B2 - 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 rubber elastic weatherstrip mounted on a vehicle door sash.

[0002]

2. Description of the Related Art A conventional weather strip, which is mounted around the outside of a door sash located above a belt line and seals a gap between a door panel and a body panel when the door is closed, is generally shown in FIGS. As shown in the cross-section of the main part of the above, a main seal part 2 that seals a space inside the vehicle and a sub-seal part 6 that seals a space outside the vehicle among the spaces between the door sash DS and the body panel BP, and The door sashes DS were separated from each other and fixed to respective retainer portions formed on the outer periphery of the door sash DS.

The main seal portion 2 is the door sash DS
A hollow seal portion 3 supported by a base portion 4 fixed to the retainer portion disposed on the vehicle outer peripheral surface, and the sub seal portion extending from the base portion 4 to each outer peripheral surface of the hollow seal portion 3. The hollow auxiliary seal portion 5 projecting toward the one end of the hollow body 6 is integrally formed. On the other hand, the sub-seal portion 6 is composed of a base member 8 having a flat plate shape as a whole, and one end of the sub-seal portion 6 faces the hollow auxiliary seal portion 5 and is pressed against each other when the door is closed, and the other end is a curved seal. The outer periphery of the door sash DS on the outside of the vehicle so as to be in close contact with a part of the glass run channel 9 that seals the upper edge of the window glass WG that is vertically movable by the contact area between the lip portion 9a and the hollow seal portion 9b. The intermediate outer surfaces of both ends extended along the surface are integrally formed so as to seal the gap on the vehicle outer side by a plurality of projecting seal lip portions 7, 7a.

[0004]

However, as shown in FIG. 4, the above-mentioned conventional weatherstrip 1 of which the main part is of the separable type has the hollow auxiliary seal part in the main seal part 2 by repeated door opening / closing operations. 5 is gradually deteriorated in elastic deformation only in a certain direction, the surface pressure is reduced, and a gap d is formed between the sub-seal portion 6 and one end portion thereof, and as a result, the sub-seal portion 6 enters the gap d from the outside of the vehicle. It was easy to cause water leakage troubles such as rainwater RW.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a weather strip in which proper elastic deformation is always maintained.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to separate a main seal portion for sealing a gap inside a vehicle and a sub seal portion for sealing a gap outside a vehicle from a gap between a vehicle door sash and a body panel. A weather strip formed in a state, wherein the main seal portion is supported by a base portion fixed to a retainer portion provided on the vehicle inner peripheral surface of the door sash, and a hollow seal portion supported by the base portion; A first seal lip portion projecting from the outer peripheral side surface toward the sub seal portion is integrally molded, and the sub seal portion is a base portion fixed to a retainer portion arranged on the vehicle outer peripheral surface of the door sash. A third seal lip portion protruding from the outer peripheral surface toward the vehicle outer side and a second seal lip portion protruding from the outer peripheral surface of the base portion toward the first seal lip portion are integrally formed. It is achieved by weatherstripping, characterized in that formed by molding.

Further, the object of the present invention is to combine the lower surface of the first seal lip portion and the upper surface of the second seal lip portion so as to overlap each other along the outer periphery of the door sash, and to close the door when the door is closed. This is accomplished by a weatherstrip characterized in that a lip pushes the second seal lip to bend further toward an interior space defined with the door sash.

[0008]

In the weather strip according to the present invention, the main seal portion is supported by the base portion fixed to the retainer portion provided on the vehicle inner peripheral surface of the door sash, and the hollow seal portion is supported by the base portion. Is integrally formed with the first seal lip portion projecting from the outer peripheral side surface toward the sub seal portion, and the sub seal portion is fixed to the retainer portion disposed on the vehicle outer peripheral surface of the door sash. A third seal lip portion protruding from the outer peripheral surface of the base portion toward the vehicle outer side, and the first seal lip portion from the outer peripheral surface of the base portion.
The second seal lip portion protruding toward the seal lip portion is integrally molded, and the main seal portion and the sub seal portion excludes the hollow auxiliary seal portion whose elastic deformation easily deteriorates with time, and elastically deforms. The first and second seal lips, which are relatively stable and maintained, reliably seal the separation area for a long period of time.

Further, the weather strip of the present invention is the first strip described above.
The lower surface of the seal lip portion and the upper surface of the second seal lip portion are combined so as to overlap each other in the direction of the roof glass run channel, and the first seal lip portion causes the second seal lip portion to close when the door is closed. It presses so as to bend further towards the interior space defined with the door sash, so that through the opening and closing of the door, the first and second seal lips continuously change in pressure contact direction which causes their elastic deformation. To do.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a weather strip of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows a cross section of a main part of the weatherstrip of the present invention with the door open, and FIG. 2 shows a cross section of the main part of the weatherstrip of the present invention with the door closed. is there. As shown in FIG. 1, the weather strip 10 of the present invention is attached to the outer periphery of the door sash DS located above the belt line and seals a gap between the door sash DS and the body panel BP when the door is closed. It is formed in a separated state into a main seal portion 11 that seals the inner gap and a sub seal portion 15 that seals the outer gap.
They are appropriately fixed to each retainer portion arranged around the outside of the door sash DS.

The main seal portion 11 is the door sash DS
The hollow seal portion 12 supported by the base portion 13 fixed to the retainer portion disposed on the vehicle outer peripheral surface, and the sub seal portion from the outer peripheral side surface of the base portion 13 near the hollow seal portion 12 A first seal lip portion 14 projecting toward one end portion of 15 is integrally formed. On the other hand, the sub-seal portion 15 is a third seal lip portion 19 protruding from the curved outer peripheral surface 16 of the base portion 17 fixed to the retainer portion provided on the vehicle outer peripheral surface of the door sash DS toward the vehicle outer surface. The second seal lip portion 18 that is curved and protrudes from the outer peripheral surface 16 of the base portion 17 toward the first seal lip portion 14 is integrally formed.

The roof glass run channel 20 mounted on the side opposite to the weather strip of the door sash DS, whose cross-sectional shape is slightly modified corresponding to the weather strip 10 of the present invention constructed as described above, is the same as described above. The structure is basically the same as that of the conventional glass run channel 9 described above, but is slightly deformed to correspond to the door sash DS.

For example, the glass run channel 20 has a skeleton portion 21 having a substantially U-shaped cross section, and a seal lip portion 22 that curves inward from the vehicle outer side wall end portions of the skeleton portion 21.
And a hollow seal part 23 projecting from the car interior side wall end of the body part 21 toward the seal lip part 22 are integrally molded, and the window glass WG is vertically movable. The upper edge of the seal lip portion 22 and the hollow seal portion
Seal on 23 opposite sides.

The weather strip 10 of the present invention configured as described above is a hollow auxiliary seal that repeatedly acts only in a certain direction as in the conventional case where elastic deformation in the main seal portion 11 and the sub seal portion 15 is easily deteriorated with time. The first part which eliminates the portion 5 and maintains elastic deformation relatively stably
Also, the area where the main seal portion 11 and the sub seal portion 15 are separated from each other is sealed by the pressure contact between the second seal lip portions 14 and 18.

Further, the weather strip 10 of the present invention has a lower surface of the first seal lip portion 11 and the second seal lip portion 18.
When the doors are closed, the upper surfaces of the two are assembled so as to overlap with each other in the direction of the glass run channel 20, and when the door is closed, as shown in FIG.
, The first seal lip portion 11 pushes the second seal lip portion 18 towards the interior space defined with the door sash DS, resulting in the first and the second through the door opening and closing. The two seal lip portions 14 and 18 continuously change the pressure contact direction that causes the elastic deformation, and avoid the permanent deformation of the elastic deformation.

The door sash DS and the glass run channel 20 are not limited to the above-mentioned form, and there is no problem even if the conventional form is left if necessary. Further, the sub-seal portion 15 can also have the same structure as the conventional sub-seal portion 6 except for the members other than the second seal lip portion 18. Also, the sub seal part
In order to average the elastic deformation of the curved shape of the outer peripheral surface 16 over the entire area 15, it is preferable to provide a hollow portion 16 'as shown in FIGS. The outer peripheral surface 16 of the sub-seal portion 15 and the second seal lip portion 18 are not limited to be formed in a curved shape and may be formed in a straight line. The slope that descends toward 14 can achieve the intended purpose.

[0017]

The weather strip 10 of the present invention described above has the following novel effects.
That is, in the weather strip 10 of the present invention, the main seal portion 11 and the hollow seal portion 12 supported by the base portion 13 fixed to the retainer portion disposed on the vehicle inner peripheral surface of the door sash DS, The first seal lip portion 14 protruding from the outer peripheral side surface of the base portion 13 toward the sub-seal portion 15 is integrally formed, and the sub-seal portion 15 is formed.
Is a hollow seal portion 16 supported by the base portion 17 fixed to the retainer portion disposed on the vehicle outer peripheral surface of the door sash DS, and from the outer peripheral surface 16 to the first seal lip portion 14. The second seal lip portion 18 protruding toward
Since it is integrally molded, each main seal portion 11
Also, the hollow auxiliary seal portion 5 that repeatedly acts only in a certain direction as in the conventional case in which the elastic deformation of the sub-seal portion 15 is easily deteriorated with time is excluded, and the elastic deformation is relatively stably maintained. The seal lip portions 14 and 18 make it possible to reliably seal the separation area between the main seal portion 11 and the sub seal portion 15 for a long period of time.

Further, the weather strip 10 of the present invention has a lower surface of the first seal lip portion 14 and the second seal lip portion 18.
The upper surfaces of the first seal lip portion 14 and the second seal lip portion 18 are defined together with the door sash DS when the door is closed. Since it pushes toward the door, the first and second doors are opened and closed through the door.
The seal lip portions 14 and 18 are continuously changed in the pressure contact direction that causes the elastic deformation, and it is possible to avoid the permanent deformation of the elastic deformation.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of a weather strip of the present invention when a door is opened.

FIG. 2 is a cross-sectional view of the essential parts of the weather strip of the present invention when the door is closed.

FIG. 3 is a cross-sectional view of a main part of a conventional weather strip when the door is closed.

FIG. 4 is a cross-sectional view of a main part of a conventional weather strip showing a state in which elastic deformation is deteriorated when the door is closed.

[Explanation of symbols]

1 Conventional weather strip 2 Main seal part 3 Hollow seal part 4 base 5 Hollow auxiliary seal 6 Sub seal part 7 Seal lip part 7a Seal lip 8 Base part 9 glass run channel 9a Seal lip part 9b Hollow seal part 10 Weather strip of the present invention 11 Main seal part 12 Hollow seal 13 Base 14 First seal lip 15 Sub seal part 16 outer peripheral surface 16 'hollow 17 Base 18 Second seal lip 19 Third seal lip 20 glass run channel 21 Body 22 Seal lip 23 Hollow seal part WG window glass DS door sash BP body panel d gap RW rainwater

Front page continuation (72) Inventor Wataru Miyamoto 1-4-1 Chuo, Wako-shi, Saitama, Ltd. Inside Honda R & D Co., Ltd. (72) Inventor Mikio Suzuki 1-4-1 Wako-shi, Saitama Prefecture Honda Engineering In the laboratory (56) Reference Japanese Unexamined Patent Publication No. 5-213070 (JP, A) Actually developed 62-95928 (JP, U) Actually developed 6-23815 (JP, U) (58) Fields investigated (Int.Cl . ⁷ , DB name) B60J 10/08 B60R 13/06

Claims (2)

(57) [Claims] 1. A weather strip formed in a state in which a main seal portion for sealing a gap inside a vehicle and a sub seal portion for sealing a gap outside a vehicle are separated from each other in a gap between a door sash and a body panel of a vehicle. The main seal portion (11) is a hollow seal portion (12) supported by a base portion (13) fixed to a retainer portion disposed on the vehicle inner peripheral surface of the door sash (DS), and the base portion. The first seal lip portion (14) protruding from the outer peripheral side surface of the portion (13) toward the sub-seal portion is integrally formed, and the sub-seal portion (15) is the outer peripheral surface of the door sash (DS) on the vehicle outer side. The base (1
The third seal lip portion (19) protruding from the outer peripheral surface (16) of the (7) toward the vehicle outer side, and the outer peripheral surface (1) of the base portion (17).
A weather strip characterized by being integrally formed with a second seal lip portion (18) protruding from 6) toward the first seal lip portion (14). 2. The lower surface of the first seal lip portion (14) and the upper surface of the second seal lip portion (18) are combined with each other so as to overlap each other along the outer periphery of the door sash (DS), and when the door is closed. The first seal lip portion (14) presses the second seal lip portion (18) so as to further curve toward an internal space defined together with the door sash (DS). Weather strip as described in.