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Wiping member made from a material based on over-crosslinked elastomer(s)

A technology for an elastomer and a component is applied in the field of obtaining the component and the windshield wiper, which can solve the problems of adhesion of the coating to the material, deterioration of the coating, and reduction of the wiping efficiency and service life of the wiper.

Active Publication Date: 2013-10-23
VALEO SYST DESSUYAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this coating may have problems sticking to the material over time, especially if the material is based on one or more elastomers
This is because the stresses experienced by the wiper blade during operation of the wiper blade cause deterioration of the coating, and more particularly, of its adhesion to the material, thereby greatly reducing the wiping efficiency and service life of the wiper blade

Method used

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  • Wiping member made from a material based on over-crosslinked elastomer(s)
  • Wiping member made from a material based on over-crosslinked elastomer(s)
  • Wiping member made from a material based on over-crosslinked elastomer(s)

Examples

Experimental program
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Embodiment Construction

[0096] Figure 1a and 1b A schematic perspective view of a conventional windscreen wiper 11 or a flat windscreen wiper 11 comprising a wiper blade 10 according to the invention is shown.

[0097] figure 2 is an illustration of a wiper blade 10 comprising a heel 12 which makes it possible to insert the wiper blade into a windscreen wiper 11 . The wiper blade 10 also comprises a lip 16 providing contact with the surface to be wiped, and a hinge 14 formed by a thin strip of rubber between the lip 16 and the heel 12 . The hinge 14 provides correct positioning of the lip 16 on the surface to be wiped, especially during a change of direction of the wiper blade 11 at the turning point. The surface to be wiped is in the case of the present invention a motor vehicle windshield.

[0098] image 3 The illustration in the middle is an enlarged view of the lip 16 of the wiper sheet 10 . This lip 16 comprises a material based on one or more elastomers and a coating 19 on its outer sur...

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PUM

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Abstract

The invention relates to a wiping member (10) comprising an elastomer-based material, a coating being provided on at least part of an external surface of the material. At least part of the surface of the assembly formed by the elastomer-based material and the coating has an increased degree of cross-linking over at least one surface thickness of the assembly. The invention also relates to a windshield wiper blade and to a method for treating a wiping member.

Description

technical field [0001] The present invention relates to a wiping member for a surface to be wiped, in particular a windscreen wiper blade for motor vehicles, which member comprises a material with a specific surface treatment based on one or more elastomers. The invention also relates to the method for obtaining the component and the use of the component. Background technique [0002] In the field of technical materials based on elastomers, research is generally directed at the improvement of the mechanical properties and / or the surface appearance of parts formed from these materials. [0003] In the case of use in motor vehicle windscreen wipers, these wiper blades must have properties, especially at the surface, that enable effective wiping of the windscreen within their range of motion. These wipers must also have acoustic comfort for the occupants of the motor vehicle in use, that is to say the generation of sound waves and thus noise must be avoided. [0004] In order...

Claims

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Application Information

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IPC IPC(8): C08J7/12B60S1/38
CPCB60S1/38B05D3/068C08J7/123B60S2001/3829B60S2001/3898B60S1/3848
Inventor A.布朗F.布雷塔格诺尔S.多佩克斯
Owner VALEO SYST DESSUYAGE