JPH07137583A - Weather strip - Google Patents

Abstract

PURPOSE:To provide a weather strip which has a large physical strength and a large antiabrasive property, hardly generates a crinkle, and can be manufactured easily. CONSTITUTION:This weather strip is combined integrally to an about U-shaped trim 31 fitted to a flange 11 projected at the door opening 10, of the body panel opening edges of a vehicle, and the surface of the outdoor side Q of the trim 31, and has a hollow seal 32 connected elastically with a door panel. And the hollow seal 32 consists of a sponge rubber Rb which has the spesific gravity 0.9+ or -0.1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip which is attached to a door opening of a body panel opening edge of a vehicle and elastically contacts the door panel.

[0002]

2. Description of the Related Art A description will be given with reference to FIGS. BACKGROUND ART Conventionally, a door opening 10 is provided on a vehicle body panel opening edge.
As a weather strip 30 that is attached to the vertical flange 11 of and is elastically contacted with the vertical end edge 21 of the door panel 20,
U-shaped trim 31 and its trim 3 made of solid rubber in which a cored bar 90 is embedded and which is fitted to the flange 11.
The one having a hollow seal portion 32 made of sponge rubber, which is integrally joined to the surface of the outdoor side Q of 1 and is elastically contacted with the vertical end edge 21 of the door panel 20, is used.

The hollow seal portion 32 has a specific gravity of 0.6.
Since the EPDM sponge rubber Ra of ± 0.1 is used, there is a problem that when a person gets in or out of the vehicle, the human body T touches it, and due to the friction, it is worn and eventually damaged. As a countermeasure, as shown in FIG. 3, the surface of EPDM sponge rubber Ra is coated with a solid rubber film F having a specific gravity of 1.1 ± 0.1 to increase the physical strength (tensile force, tearing force, etc.). It is used.

However, the hollow seal portion 32 in which the surface of the EPDM sponge rubber Ra of the conventional weather strip 30 is covered with the solid rubber film F is apt to be creased on the surface and difficult to manufacture. There is a point.

[0005]

The problem to be solved by the present invention is that in the conventional weather strip 30, the hollow seal portion 32 is touched by the human body T when a person gets in and out of the vehicle in the Z direction, and due to the friction thereof. However, it is easily worn and eventually broken, or the surface is likely to be creased, and is difficult to manufacture.

[0006]

Means for Solving the Problems An explanation will be given with reference to FIGS. 1, 4 and 5. INDUSTRIAL APPLICABILITY The present invention integrally joins a substantially U-shaped trim 31 and a surface of an outer side Q of the trim 31 which are fitted to a flange 11 protruding from the door opening 10 among the body panel opening edges of the vehicle, The weather strip 30 includes a hollow seal portion 32 that makes elastic contact with the door panel 20, and the hollow seal portion 32 is made of sponge rubber Rb having a specific gravity of 0.9 ± 0.1.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Explaining an embodiment, 10 is a vertical door opening which is a part of an opening edge of a vehicle body panel, and 11
Is a flange projecting from the door opening 10, 20 is a door panel, and 30 is a weather strip which is elastically contacted with the vertical end 21 of the door panel 20, and is constructed as follows.

Reference numeral 31 is a U-shaped trim made of solid rubber fitted to the flange 11, 32 is a hollow which is integrally connected to the surface of the outer side Q of the trim 31 and is in elastic contact with the vertical edge 21 of the door panel 20. It is a seal part. Moreover, the hollow seal portion 32 is made of EPDM sponge rubber Rb having a specific gravity of 0.9 ± 0.1, and the surface thereof is coated with silicone S. In addition, P is an indoor side.

To explain the operation, when a person gets in or out of the vehicle, the hollow seal portion 32, which the human body T touches, is made of EPDM sponge rubber Rb having a specific gravity of 0.9 ± 0.1.
Since the surface is coated with silicone S, according to the scarf test, it is made of conventional EPDM sponge rubber with a specific gravity of 0.6 ± 0.1, and the surface coated with silicone S is 5,000 to 8,000. The product of the present invention has a physical strength and abrasion resistance of 20,000 or more, whereas it is less wrinkled than the one covered with the solid rubber film F. , Easy to manufacture.

[0010]

Since the present invention is constructed as described above,
Compared with the conventional one, physical strength and abrasion resistance are improved, or wrinkles are less likely to occur, which facilitates manufacturing.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a vehicle.

FIG. 2 is a cross-sectional view showing a first conventional example.

FIG. 3 is a sectional view showing a second conventional example.

FIG. 4 is a cross-sectional view showing a mounted state of a weather strip.

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

[Explanation of symbols]

 10 Door Opening 11 Flange 20 Door Panel 21 Vertical Edge 30 Weather Strip 31 U-shaped Trim 32 Hollow Seal 90 Core Metal F Coating P Indoor Side Q Outdoor Side Ra, Rb Sponge Rubber S Silicone T Human Body Z Moving Direction of Human Body

Claims (1)

[Claims] 1. A substantially U-shaped trim (31) fitted to a flange (11) projecting from a door opening (10) of an opening edge of a body panel of a vehicle, and an outer side of the trim (31) ( In a weather strip (30) having a hollow seal part (32) integrally joined to the surface of Q) and making elastic contact with the door panel (20), the hollow seal part (32) has a specific gravity of 0.9 ± 0.1. Weather strip made of sponge rubber (Rb).