JP2003306042A - Door weather strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door weather strip with a relatively compact structure suppressing generation of uncomfortable contact noise at a contact part of respective opposed surfaces of a hollow seal part and a seal lip part. <P>SOLUTION: The door weather strip is formed by integrally extrusion-molding a base bottom part to be fixed along an outer peripheral end surface of the respective door frame; the hollow seal part projected from the base bottom part close to an indoor side toward a body panel; and the seal lip part projected from the base bottom part close to an outdoor side toward the body panel and is one attached to a circumference of the respective door of the automobile. A low density sponge butting member is arranged on the opposed surface of the hollow seal part and the seal lip part butted to each other upon closure of the door such that it is crossed over on any one of the opposed surface or both opposed surfaces. Therefore, the contact of hard materials each other is prevented. As a result, the generation of the uncomfortable contact noise can be suppressed. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a door weather strip fixed along an outer peripheral end surface of a vehicle door frame.

[0002]

2. Description of the Related Art As shown in FIG. 5, a conventional door weather strip 1 fixed along the outer peripheral end surface of each door frame DF of an automobile is made of a synthetic rubber such as ethylene propylene rubber. Low foaming (0.5-0.
8 g / cm ³ ) sponge rubber material is extruded,
A typical structure thereof is a base portion 2 fixed to the outer peripheral end surface of the door frame DF via a retainer R, and a hollow seal portion protruding from the base portion 2 near the vehicle interior toward the body panel BP. 3, a seal lip portion 4 projecting from the base portion 2 near the vehicle exterior toward the body panel BP, and a sub-projection projecting on the side surface of the seal lip portion 4 near the vehicle exterior, if necessary. The seal lip portion 5 and the seal lip portion 5 are integrally formed by extrusion molding.

[0003]

However, in the conventional door weather strip 1, the hollow seal portion 3 and the seal lip portion 4 which are elastically deformed by being compressed by the body panel BP when the door is closed are as shown in FIG. As described above, at the contact points 6 on the respective facing surfaces indicated by the circles 5, relatively hard materials come into contact with each other due to the relatively low foaming sponge rubber material, and it is easy to generate a rather annoying contact sound. There was a flaw.

The present invention solves the above-mentioned problems of the prior art, and has a relatively compact structure, which causes annoying contact noise at the contact points between the hollow seal portion and the seal lip portion on the opposing surfaces. It is an object of the present invention to provide a door weather strip that suppresses the above.

[0005]

The object of the present invention is to:
A base portion fixed along the outer peripheral end surface of each door frame, a hollow seal portion projecting from the base portion near the inside of the vehicle toward the body panel, and a body seal portion from the base portion near the outside of the vehicle to the body panel. A door weather strip which is formed by integrally extruding a seal lip portion projecting toward and is mounted around each door of an automobile, wherein the hollow seal portion and the hollow seal portion that abut when the door is closed. A door weather, characterized in that a high-foam sponge contact member is disposed on the surface facing the seal lip portion, and the hollow seal portion (3) and the seal lip portion (4) are in contact with each other when the door is closed. Achieved by strips.

The high foam sponge contact member is integrally formed with the hollow seal portion to achieve a door weather strip.

The high-foam sponge contact member is integrally formed with the seal lip portion to achieve a door weather strip.

The high-foam sponge contact member is integrally formed so as to bridge between the hollow seal portion and the seal lip portion.

The high foam sponge contact member has a density of 0.
It is achieved by a door weather strip characterized by being made of highly foamed sponge rubber of 05-0.4 g / cm ³ .

[0010]

The door weather strip of the present invention includes the base portion fixed along the outer peripheral end surface of each door frame,
The hollow seal part projecting from the base part closer to the inside of the vehicle toward the body panel and the seal lip part projecting from the base part closer to the outside of the vehicle toward the body panel are integrally formed. The door weather strip, which is formed by extrusion molding on the vehicle, is mounted around each of the doors of the automobile, and the height is provided on the facing surface of the hollow seal portion and the seal lip portion that abut when the door is closed. Since the foam sponge abutting member is arranged so as to be bridged to either one or both facing surfaces, contact between hard materials is avoided, and as a result, generation of annoying contact sound is suppressed. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a door weather strip of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows a door weather strip 10 according to the present invention.
2 to 4 are cross-sectional views showing the main parts of the respective embodiments of the door weather strip 10 according to the present invention. As is apparent from FIGS. 1 and 2, a door weather strip 1 according to the present invention.
High foam sponge contact members 11, 1 described later in FIG.
Since the other members except 2 and 13 have substantially the same configuration and operational effect as the conventional door weather strip 1, they will be described with reference to the same reference numerals.

That is, the door weather strip 10 according to the present invention fixed along the outer peripheral end surface of each door frame DF of an automobile has a relatively low foam (0.5) made of synthetic rubber such as ethylene propylene rubber. ~ 0.8 g /
cm ³ ) is formed by extruding a sponge rubber material, and its typical structure is from a base 2 fixed to the outer peripheral end surface of the door frame DF via a retainer R and the base 2 near the vehicle interior. A hollow seal portion 3 protruding toward the body panel BP and a seal lip portion 4 protruding from the base portion 2 near the outside of the vehicle toward the body panel BP.
Further, if necessary, the sub-seal lip portion 5 projecting from the side surface of the seal lip portion 4 facing the outside of the vehicle is integrally extruded.

Further, in the door weather strip 10 according to the present invention, the high-foam sponge abutting member 11 is co-extruded on the surface of the hollow seal portion 3 that abuts when the door is closed, facing the seal lip portion 4. It is formed by being integrally formed by molding, and contact between hard materials is avoided, and as a result, generation of annoying contact noise is suppressed.

The door weather strip 10 according to the present invention, as shown in FIG.
It is also possible to integrally form the high-foam sponge contact member 12 on the surface facing the hollow seal portion 3 by co-extrusion molding so as to avoid contact between hard materials.

Further, as shown in FIG. 4, the door weather strip 10 according to the present invention includes a high-foam sponge contact member 13 so as to bridge between the hollow seal portion and the seal lip portion. It is also possible to integrally mold the material by extrusion molding and modify it so as to avoid contact between hard materials. Also, the base, hollow seal, seal lip,
As a material applicable to the relatively low foam sponge of the sub-seal lip portion, resin may be used in addition to rubber.

Further, the high foam sponge contact member 11,
12 and 13 are preferably made of highly foamed sponge rubber having a density of 0.05 to 0.4 g / cm ³ . Examples of materials that can be used as the high-foam sponge include rubber and resin. Further, in the embodiment of the present invention, the same can be applied to a weather strip mounted on a sash door vehicle.

[0017]

The door weather strip of the present invention as described above has the following novel effects. That is, the door weather strip of the present invention includes the base portion fixed along the outer peripheral end surface of each door frame, and the hollow seal portion projecting from the base portion near the interior of the vehicle toward the body panel. And the door lip strip mounted on the periphery of each door of the automobile by integrally extruding the seal lip portion projecting from the base portion near the outside of the vehicle toward the body panel. The high foam sponge abutting member is arranged on the facing surface of the hollow seal portion and the seal lip portion that abut when the door is closed, by bridging either one or both facing surfaces. Since it is installed, it is possible to avoid contact between hard materials, and as a result, it is possible to suppress the generation of annoying contact noise. The density of high foam sponge is
If it is less than 0.05 g / cm ^3, it is difficult to stably produce it by coextrusion molding. If the density of the high-foam sponge exceeds 0.4 g / cm ³ , the contact noise cannot be prevented when the hollow seal portion and the seal lip portion come into contact with each other when the door is closed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a main part of a door weather strip according to the present invention in a mounted state.

FIG. 2 is a cross-sectional view showing a main part of an embodiment of a door weather strip according to the present invention.

FIG. 3 is a cross-sectional view showing a main part of another embodiment of the door weather strip according to the present invention.

FIG. 4 is a cross-sectional view showing a main part of another embodiment of the door weather strip according to the present invention.

FIG. 5 is a cross-sectional view showing a main part of a conventional door weather strip in a mounted state. It is sectional drawing which shows the principal part of a normal state.

[Explanation of symbols]

1 Conventional door weather strip 2 base 3 Hollow seal part 4 Seal lip part 5 Sub seal lip 10 Door weather strip according to the present invention 11 High-foam sponge contact member 12 High-foam sponge contact member 13 High-foam sponge contact member DF door frame BP body panel R retainer

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shigeaki Kurokawa             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F term (reference) 3D201 AA25 CA23 DA06 DA23 DA31                       DA34 DA54 EA04Z FA04

Claims (5)

[Claims] 1. A base portion (2) fixed along an outer peripheral end surface of each door frame (DF), and a hollow protruding from the base portion (2) near the inside of the vehicle toward a body panel (BP). Car-shaped seal portion (3) and a seal lip portion (4) projecting from the base portion (2) near the outside of the vehicle toward the body panel (BP) are integrally extruded to form an automobile. Door weather strips (1
0), wherein the hollow seal portion (3) that abuts when the door is closed
A high-foam sponge contact member (11, 12, 13) is disposed on the surface facing the seal lip portion (4) and the hollow seal portion (3) and the seal lip portion (4) when the door is closed. A door weather strip characterized by being formed by abutting against each other. 2. The door weather strip according to claim 1, wherein the high-foam sponge contact member (11) is formed integrally with the hollow seal portion (3). 3. The door weather strip according to claim 1, wherein the high-foam sponge contact member (11) is integrally formed with the seal lip portion (4). 4. The high-foam sponge contact member (13) comprises the hollow seal portion (3) and the seal lip portion (4).
The door weather strip according to claim 1, wherein the door weather strip is integrally molded so as to bridge the space between the door weather strip and the door weather strip. 5. The high-foam sponge contact member (11, 1)
2. The door weather strip according to claim 1, wherein (2, 13) comprises a high-foam sponge having a density of 0.05 to 0.4 g / cm ³ .