Windscreen wiper device

B - Operations – Transporting – 60 – S

Patent

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Details

B60S 1/38 (2006.01)

Patent

CA 2575412

A windscreen wiper device (1) comprising elastic, elongated carrier element, as well as an elongated wiper blade (2) of a flexible material, which can be placed in abutment with a windscreen to be wiped, which wiper blade (2) includes opposing longitudinal grooves (9) on its longitudinal sides, in which grooves space-apart longitudinal strips (10) of the carrier element are disposed, which windscreen wiper device (1) further comprises a connecting device (3) for an oscillating arm (4) , wherein said oscillating arm (4) is pivotally connected to said connecting device (3) about a pivot axis near one end, with the special feature that said wiper blade (2) and/or said strips (10) are made of a superelastic material such that said wiper blade (2) has a pre-shape with a specific curvature and is deformed when placed in abutment with the windscreen to be wiped, wherein an at least substantially constant force is applied on said windscreen by outer ends of said wiper blade (2) , independent of the curvature of said windscreen.

La présente invention a trait à un dispositif d'essuie-glace (1) comportant un élément de support élastique de forme allongée, ainsi qu'un balai d'essuie-glace de forme allongée (2) d'une matière flexible, qui peut être disposé adjacent à un pare-brise à essuyer, ledit balai d'essuie-glace (2) comprenant des rainures longitudinales opposées (9) sur ses côtés longitudinaux, dans lesquelles rainures sont disposées de bandes longitudinales (10) espacées de l'élément de support. Ledit dispositif d'essuie-glace (1) comporte également un dispositif de connexion (3) pour un bras oscillant (4), ledit bras oscillant (4) étant relié en pivotement au dit dispositif de connexion (3) autour d'un axe d'articulation à proximité d'une extrémité. L'invention se caractérise en ce que ledit balai d'essuie-glace (2) et/ou lesdites bandes (10) est/sont réalisé(es) en un matériau à effet superélastique de sorte que le balai d'essuie-glace (2) présente une forme initiale avec une courbure spécifique et est déformée lors de son placement en butée avec le pare-brise à essuyer, une force au moins sensiblement constante étant appliquée sur ledit pare-brise par les extrémités extérieures dudit balai d'essuie-glace (2) indépendamment de la courbure dudit pare-brise.

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