C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/07 (2006.01) B32B 3/20 (2006.01) B60S 1/04 (2006.01) B60S 1/38 (2006.01) C08K 3/04 (2006.01) C08K 3/08 (2006.01) C08K 3/36 (2006.01) C08K 3/38 (2006.01) C08K 5/02 (2006.01) C08L 27/18 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2469362
A wiper blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5 - 42 weight percent, preferably 11 percent. The average particle size of the friction-reducing additive is preferably less than 6 microns, thereby permitting extrusion of the compound in the shape of a wiper blade. Polytetrafluoroethylene is preferred as a friction-reducing additive, but other substances, such as boron nitride or graphite could be used. In the figure, a windshield wiper (11) according to the present invention includes a wiper frame (13), a spline member (15), and a wiper blade (17). The wiper blade includes each side (35) of a squeegee member (23) and a relatively thick retainer flange (27). The squeegee member (23) includes a relatively thin squeegee blade end (33). Spline member (15) is engaged by a claw (41). The wiper blade (17) removed moisture and debris from the windshield (45).
L'invention concerne un balai d'essuie-glace fait à base d'un composé comportant un polymère de silicone méthylvinylique, une charge, et un additif réducteur de frottement. Ledit additif est présent en dose se situant entre environ 5-42 % en poids, de préférence 11 %. Le calibre moyen dudit additif est, de préférence, inférieure à 6 microns, ce qui permet l'extrusion du composé sous la forme de balai d'essuie glace. On utilisera de préférence le polytétrafluoroéthylène comme additif réducteur de frottement, mais d'autres substances, par exemple nitrure de bore ou graphite, peuvent également être utilisées. Dans la Figure, l'essuie-glace selon l'invention comprend une armature de balai (13), un élément cannelure (15) et un balai d'essuie-glace (17). Ledit balai d'essuie-glace comporte de chaque côté un élément de raclette (23) et une bride de retenue (27) relativement épaisse. L'élément de raclette (23) comporte une extrémité de lame de raclette relativement mince (33). L'élément cannelure (15) est en prise avec une patte (41). Le balai d'essuie-glace débarrasse le pare-brise (45) de l'humidité et de débris.
Allen Michael E.
Holmes Jeannie
Paulsen Victor K.
Shanmugham Subramaniam
Sharabura Scott D.
Jamak Fabrication-Tex Llc
M. Management-Tex Ltd.
Smart & Biggar
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