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Weather strip

By using rubber-like elastomer materials with a specific gravity of 0.35 to 0.65, especially sponge materials with a loss elastic modulus of less than 0.25MPa, the contradiction between the sealing performance of the automobile seal strip and the door closing performance is solved by balancing the static and dynamic compression loads. , achieving efficient sealing performance and good door closing performance.

Pending Publication Date: 2018-08-07
NISHIKAWA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In addition, in Patent Document 1 and Patent Document 2, although it is described that the door closing performance is prevented from deteriorating, there is no description at all about the loss elastic modulus indicating the viscosity of the material of the hollow sealing part in relation to the door closing performance.
Also, there is no apocalyptic record

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] For the sealing strip 20 of the embodiment of the present invention, refer to figure 1 Be explained.

[0049] This weather strip 20 is different from the weather strip 10 shown in the conventional example ( Figure 7 ) are the same, having: an installation base 21, which is installed on the side door 1 of the vehicle; a hollow sealing portion 22, which is integrally formed with the installation base 21, and elastically contacts with the periphery of the door opening on the side of the vehicle body 2 when the side door 1 is closed; but particularly The material of the hollow sealing portion 22 is characteristic.

[0050] In addition, for the previous example ( Figure 7 ) are assigned the same reference numerals.

[0051]The hollow seal portion 22 of the weather strip 20 according to the embodiment of the present invention is formed of a sponge material made of a rubber-like elastic body having a specific gravity of 0.35 to 0.65 and a loss elastic modulus of 0.23 MPa...

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PUM

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Abstract

The invention provides a weather strip, which improves sealability of a car door by means of viscosity of mateiral of a rubber elastomer. A weather strip includes an installation base member 21. The installation base member is configured to operably couple to a peripheral edge of a panel. A seal member 22 is integrally molded with the installation base member 21 and configured to make elastic contact with a peripheral edge of an opening in a body 2 of an automobile when a side door 1 is in a closed position. The seal member 22 includes sponge material which has specific gravity that falls within a range of 0.35 to 0.65 and a loss elastic modulus of not more than 0.25 MPa. More preferably, the sponge material has the loss elastic modulus of not more than 0.20 MPa.

Description

technical field [0001] The invention relates to an open and close device which is installed on the periphery of opening and closing bodies such as side doors, rear tailgates, trunk lids, engine covers, etc. The sealing strip that seals between the opening and closing body and the vehicle body through elastic contact with the body. Background technique [0002] In the past, such as Figure 6 As shown, the weather strip 10 is installed on the periphery of the side door 1 of the automobile, and elastically contacts the side of the vehicle body 2 when the side door 1 is closed to seal the gap between the side door 1 and the vehicle body 2 . [0003] Such as Figure 7 As shown, the sealing strip 10 has: an installation base 11, which is fitted on the frame body 1a provided on the side door 1; Elastic contact around the opening. Usually, the hollow sealing portion 12 uses EPDM (ethylene propylene diene monomer) sponge rubber with a specific gravity of 0.35 to 0.65 in considerat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60J10/84B60J10/86B60J10/15B60J10/16B60J10/24
CPCB60J10/15B60J10/16B60J10/24B60J10/84B60J10/86B60J10/80
Owner NISHIKAWA RUBBER CO LTD
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