JP2864785B2 - Automotive door glass 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 weatherstrip for a door glass for an automobile, and more particularly to a weatherstrip having a hollow sealing portion having a sealing wall pushed up by an upper edge of the door glass when the door glass is closed. .

[0002]

2. Description of the Related Art Recent weather strips for door glass are:
From the standpoint of improving the design when the door glass is closed and reducing air resistance and wind noise during high-speed driving, it is required that the door frame be as flush as possible with the outer wall surface of the vehicle. A weather strip satisfying this requirement is disclosed in Japanese Patent Application Laid-Open No. 63-43823.

That is, this weather strip is shown in FIG.
As shown in FIG. 1, a mounting base 1 having engaging legs 2 and 3 for engaging with a retainer 22 of a door frame 21, a hollow seal portion 6 connected to the outside of the mounting base 1 on the vehicle, and a door glass G And a bend lip 11 which comes into contact with and seals the inner surface of the upper end. When the hollow seal portion 6 is attached to the door frame 21, that is, when the engaging legs 2 and 3 are engaged with the retainer portion 22, the hollow outer portion 6 is substantially flush with the door frame outer side wall 23. A connecting support wall 8 for connecting and supporting the vehicle outer wall 7 to the mounting base 1, a mounting base 1 and the vehicle outer wall 7 at a predetermined distance from the connecting supporting wall 8.
And a sealing wall 9 pushed up by the upper edge of the door glass G when the door glass is closed. The seal wall 9 seals and holds the upper edge of the door glass G so as to enclose the upper edge when pushed up by the upper edge.

The bend lip 11 has a function of sealing by contacting the upper end of the door glass G on the inner side surface of the vehicle, but is generally thickened from the viewpoint of preventing wrinkles from occurring on the outer skin of the vehicle and sealing properties.

In this weather strip, the seal wall 9 and the bend strip 11 of the hollow seal portion 6 are usually made of sponge rubber and the other portions are made of solid rubber. Specifically, rubber strips such as EPDM and CR are used. It is formed by color extrusion molding.

[0006]

However, in the above-mentioned weather strip, the outside wall of the hollow seal portion has a substantially constant thickness, so that when the door glass is closed, the sealing wall is wrapped by the door glass and the outside wall of the vehicle is closed. There is a problem in that the load that causes the vehicle to fall down inside the vehicle increases.

It is also conceivable that a notch is formed at the base end of the outer side wall of the hollow seal portion so that the outer side wall can easily fall down. In this case, the notch is bent at the notch portion and the load is reduced. Since a broken line is formed on the outer surface of the portion, there is a problem that the appearance design is impaired.

[0008] An object of the present invention is to solve the above-mentioned disadvantages,
An object of the present invention is to provide an automotive door glass weatherstrip capable of reducing the load value of the deformation of the outer side wall due to the door glass without impairing the design.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, an automobile door glass weather strip according to the present invention is provided.
Provided along an inner periphery of the door frame, and solid rubber mounting base to be attached to the door frame, pushed up by the upper edge of the door glass door glass is closed sports
And a hollow seal portion having a Njigomu made of sealing wall
Door glass weatherstrip, wherein the hollow seal
Part is almost flush with the exterior wall surface of the door frame.
Rubber outboard wall, and the base end of
Solid rod connecting the mounting base and supporting the hollow seal part
Connection support wall and a predetermined distance from the connection support wall.
A cross section from the sealing wall, which is arranged substantially parallel away
In the case where the outer side wall of the hollow seal portion is formed so as to have a tip extending beyond the seal wall, the outer side wall of the hollow seal portion is formed in a substantially rectangular shape.
And a hollow seal section from the base end to the seal wall.
In this case, the solid rubber portion is made thinner than the other solid rubber portion and the inner surface is formed with a gentle curved surface.

[0010]

When the upper edge of the door glass pushes up the sealing wall when the door glass is closed, the sponge rubber sealing wall is
Seal and hold so as to enclose the top edge of the door glass. In addition, with the wrapping deformation of the sealing wall, the outer wall of the vehicle is bent and deformed toward the inside of the vehicle by the gentle curved surface of the inner surface, and the tip of the vehicle extending beyond the sealing wall is located at the upper end of the door glass. It seals against the outer side. This bending deformation of the vehicle outer wall is caused by other hollow seal parts.
It is thinner than the lid rubber part and its inner surface is formed by a gentle curved surface.Because it is bent as a whole from the base end of the vehicle outer wall to the seal wall, unlike the notch formed at the base end, No broken lines occur on the outer surface.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to embodiments for better understanding. The same parts as those in the conventional example are denoted by the same reference numerals in the illustrated example, and a part of the description is omitted.

As shown in FIG. 1, in an automobile door 20 provided with a door frame 21, a door glass weather strip (hereinafter simply referred to as a glass run) W is attached along the inner periphery of the door frame 21. ing.

The glass run W is a combination of an extruded body and a molded part. At a portion attached along the upper side of the door frame 21, as shown in FIGS. Mounting base 1 having engaging legs 2 and 3 that engage with retainer 22 formed on frame 21
And a hollow seal portion 6 connected to the outside of the mounting base 1 and a bend lip 11 which abuts on and seals the inner side surface of the upper end of the door glass G. The bend lip 11 extends from the mounting base 1 to the outside of the vehicle in the same manner as in the related art, and has an effect of contacting and sealing the inner side surface at the upper end of the door glass G.

The hollow seal portion 6 is provided with a door frame 21
In a state where the door frame 21 is attached to the vehicle, a solid rubber exterior wall 7 which is substantially flush with the exterior wall surface 23 of the door frame 21;
A solid rubber connecting support wall 8 that connects the base end 7a of the vehicle outer wall 7 and the mounting base 1 and supports the hollow seal portion 6; A sponge rubber sealing wall 9 which is arranged and is joined to the mounting base 1 and the vehicle outer side wall 7 and is pushed up by an upper edge of the door glass G when the door glass is closed.
The outer wall 7, the connecting support wall 8, and the seal wall 9 form
It is formed in a hollow shape having a substantially rectangular cross section . The seal wall 9 seals and holds the upper edge of the door glass G so as to enclose the upper edge when pushed up by the upper edge. The exterior side wall 7 of the hollow seal portion 6, the
The distal end extends beyond the seal wall 9 and the proximal end 7
a from the a to the seal wall 9 other solid parts of the hollow seal part
It is formed to be thinner than the rubber part, and its inner surface is formed into a gentle curved surface 7b.

Therefore, in the glass run W of this embodiment,
When the door glass is closed, the upper edge of the door glass G pushes up the seal wall 9. As a result, the sealing wall 9 is
Seal and hold to enclose the top edge of the In addition, the wrapping deformation of the seal wall 9 causes the outer side wall 7
Is bent and deformed by being pulled inside the vehicle, and its tip abuts against and seals the outer side surface of the upper end of the door glass G.
The bending deformation of the outer side wall 7 is reduced to the base end 7 of the outer side wall 7 which is thin and whose inner surface is formed by a gentle curved surface 7b.
Since the entire structure is bent from “a” to the seal wall 9, the deformation load value can be reduced, and no broken line is formed on the outer surface.

In the above embodiment, the mounting base 1 is shown as engaging with the retainer 22. However, as shown in FIG. 4, the mounting base 1 is mounted on the trim section 10 having a substantially U-shaped cross section and having a retaining lip therein. A base may be formed and attached to the flange 25 of the door frame 21. In addition,
The base end portion 7a of the vehicle exterior wall 7 is a portion formed in a step shape in FIG. 4 and indicates a root portion of a portion of the vehicle exterior wall 7 exposed outside the vehicle.

[0017]

As described above in detail, in the automotive door glass weather strip of the present invention, the warp of the hollow seal portion is provided.
The outer end wall of the rubber pad is extended beyond the sealing wall.
It causes out, the hollow from the proximal end toward the seal wall sheet
To make it thinner than other solid rubber parts and to form the inner surface with a gentle curved surface, when the door glass is closed,
Since the outer side wall is bent from the base end to the seal wall as a whole, the deformation load value of the outer side wall due to the door glass when the door glass is closed can be reduced, and the insertion force of the door glass can be reduced. . In addition, since the vehicle exterior wall is bent as a whole from the base end to the seal wall, no broken line is formed on the exterior surface of the vehicle exterior wall, and the appearance design is not spoiled. When the door glass is closed,
The end of the outside wall of the car that extends beyond the
Abuts on the outer side of the car at the top of
The seal at the position is improved.

[0018]

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view of a main part of the weather strip according to one embodiment of the present invention, and is a cross-sectional view at a position along line AA in FIG. 1 when a door glass is opened.

FIG. 3 is a cross-sectional view of a principal part of the weather strip according to one embodiment of the present invention, and is a cross-sectional view at a position along the line AA in FIG. 1 when the door glass is closed.

FIG. 4 is a sectional view of a principal part of a weather strip according to another embodiment of the present invention, and is a sectional view taken along a line AA in FIG. 1 when a door glass is closed.

FIG. 5 is a sectional view of a main part of a conventional weatherstrip.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mounting base 6 Hollow seal part 7 Car outer side wall 7a Base end part 7b Curved surface 8 Connection support wall part 9 Seal wall 10 Trim part (mounting base part)

Continuation of the front page (56) References JP-A-60-165213 (JP, U) JP 2-24326 (JP, Y2) JP 3-15368 (JP, Y2) JP 3-29206 (JP , Y2) (58) Field surveyed (Int.Cl. ⁶ , DB name) B60J 1/17 B60J 10/06

Claims (1)

(57) [Claims] Claims: 1. A door frame is provided along an inner periphery of a door frame,
Door glass weather strip comprising: a solid rubber mounting base mounted on the door frame; and a hollow sealing portion having a sponge rubber sealing wall pushed up by an upper edge of the door glass when the door glass is closed. And
The hollow seal portion is substantially flush with the vehicle exterior wall surface of the door frame.
A solid rubber exterior wall and a base of the exterior wall;
Connecting the end and the mounting base to support the hollow seal part
Solid rubber connecting support wall and the connecting support wall
The seal wall is disposed at a predetermined distance from and substantially parallel to the seal wall
Oite to what is formed in a substantially B-shaped and a, the exterior side wall of the hollow sealing portion, the sealing wall and the front end
And extending from the base end to the seal wall to be thinner than the other solid rubber portion of the hollow seal portion, and the inner surface is formed by a gentle curved surface. Door glass weather strip for automobiles.