JPH09286242A - Glass run - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass run which prevents wind leakage to or from the interior. SOLUTION: A glass run 1 is mounted to a door sash S or a door panel, and elastically contacts with a door glass G at its lips 3 and 4. A flange F projected from the door sash S or the door panel is held by a sectionally substantial U-shaped holding part 5 formed in the glass run 1 through an engaging lip 5a, and a sealant 6 is provided at the bottom of the holding part 5, to be in a reliable contact with the tip end of the flange F in mounting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grass run mounted on an automobile door.

[0002]

2. Description of the Related Art As shown in FIGS. 3 to 5, a grass run 11 mounted on a door sash S having an approximately U-shaped cross section of an automobile door.
Is mounted so that the flange portion F on the vehicle interior side of the door sash S is sandwiched by the large lip 11A.

[0003]

However, as shown in FIG. 5, when the air pressure outside the vehicle decreases when the vehicle is traveling at high speed, the air inside the vehicle as shown by the arrow w causes the door sash S and the grass run 11 to move.
The gap between and passes vigorously and an unpleasant sound is generated. Further, in the case of a press door in which the corner portion C of the door sash S has a small curvature, the running air flows in from a gap near the door mirror M at the front of the door because a missing portion K is formed in the manufacturing process as shown in FIG. As a result, the air leaks to the above-mentioned missing portion K, and a large amount of air leakage occurs. Therefore, conventionally, it has been attempted to stick and seal butyl rubber, an adhesive material, a foam sealant, or the like on the glass run 11 assembled to the missing portion K, but a gap is created at the end of the sticking portion and air leakage also occurs. There was a problem of doing. Note that FIG. 6 shows an example of the glass run 12 attached to another type of door panel P, and the air leakage is substantially the same as the above. In view of such conventional problems, it is therefore an object of the present invention to provide a grass run that prevents air leakage from indoors and outdoors.

[0004]

In order to achieve the above object, the structure of the present invention is, as shown in FIG. 1, mounted on a door sash S or a door panel P and attached to a door glass G by lip portions 3, 4, 9a. In the grass runs 1 and 7 which are elastically contacted, the flange portion F protruding from the door sash S or the door panel P is provided with a cross section U formed on the grass runs 1 and 7.
It is clamped by the character-shaped clamping portions 5 and 8 via the locking lips 5a and 8a, and the sealing members 6 and 10 are so arranged that the tip of the flange portion F surely comes into close contact with the inner portions of the clamping portions 5 and 8 when mounted. Is provided.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a first embodiment of the present invention, in which 1 is a glass run, and is provided with a main body portion 2 having a substantially U-shaped cross section, which is fitted to a door sash S having a substantially U-shaped cross-section. A door glass G is provided at each end of the inner and outer wall portions 2a and 2b.
The large lips 3 and 4 elastically contacting with are provided so as to extend in and out. Further, the wall portion 2a on the vehicle outer side and the outer extending portion 3a of the large lip 3 form a sandwiching portion 5 having a substantially U-shaped cross section, and the sealing material 6 is provided in the inner portion of the sandwiching portion 5 in the longitudinal direction. A plurality of locking lips 5a are provided so as to be inserted over the entire circumference so as to prevent the sealing material 6 from coming off.

When the glass run 1 is mounted on the door sash S, the holding portion 5 is held by the flange portion F of the door sash S, and the tip of the flange portion F is embedded in the sealing material 6 at this time. Make sure you get in close contact. Therefore, when traveling at high speed, even if the air pressure on the outdoor side is reduced and the air tries to flow out through the tip portion of the flange portion F, the flow of the air is surely blocked by the sealing material 6, which is uncomfortable as in the conventional case. No air noise is generated. Also, in the case of the front door shown in FIGS. 1 and 4, the air that has flowed in through the gap near the door mirror M is blocked by the sealing material 6, so that it does not escape to the missing portion on the side of the center pillar unlike the conventional case. This prevents wind leakage caused by.

FIG. 2 shows a second embodiment of the present invention. In the case of a door panel P of another type different from the door sash S having a substantially U-shaped cross section, the grass run 7 has a flange portion F ₁ and a locking lip 8a. The sandwiching part 8 having a substantially U-shaped cross section and the hollow seal part 9 elastically contacting the door glass G via the lip 9a.
Is formed. The sealing material 10 is provided in the inner portion of the holding portion 8.
It is inserted over the entire circumference in the longitudinal direction, and this action effect is
It is similar to the embodiment.

[0008]

As described above, according to the glass run of the present invention, a sealing material that is in close contact with the tip of the flange portion is provided in the inner portion of the holding portion having a substantially U-shaped cross section for holding the flange portion of the door sash or door panel. Therefore, even if there is a pressure difference between the inside and outside of the vehicle, the flow of air is blocked by the sealing material, and the generation of unpleasant air noise as in the prior art is prevented.

[Brief description of drawings]

FIG. 1 is a sectional view taken along the line AA of FIG. 3 showing a glass run showing a first embodiment of the present invention.

FIG. 2 is a sectional view of a glass run showing a second embodiment of the present invention.

FIG. 3 is a side view of an automobile door.

FIG. 4 is a perspective view of a corner portion of a front door.

5 is a cross-sectional view taken along the line AA of FIG. 3 in a conventional grass run.

FIG. 6 is a cross-sectional view of another example of a conventional grass run.

[Explanation of symbols]

 1,7 Grass run 3,4,9a Lip part 5,8 Clamping part 5a, 8a Locking lip 6,10 Sealing material

Claims (1)

[Claims] 1. A glass run mounted on a door sash or a door panel and elastically contacting a door glass at a lip portion,
A flange portion projecting from the door sash or door panel is clamped by a clamping portion having a substantially U-shaped cross section formed on the grass run via a retaining lip, and the flange portion when mounted is mounted on the inner portion of the clamping portion. A grass run characterized by having a sealing material so that the tips are in close contact with each other.