B - Operations – Transporting – 60 – S
Patent
B - Operations, Transporting
60
S
B60S 1/38 (2006.01)
Patent
CA 2344888
The present invention relates to a single beam windscreen wiper which has a curved backbone and which may have a varying width and/or thickness. The invention provides dimensional ranges for a wiper blade beam for optimal wiper performance. The windscreen wiper includes an elongate curved backbone which is of a resiliently flexible material having a Young's modulus between 50 to 350 GPa. The backbone having a substantially spacially consolidated cross sectional profile at substantially all points along its length characterized therein at the magnitude of the width that is substantially the widest point along the backbone is at most (-8.889*10 -5* E = 0.05378)* L -5.25, where L is the total length of the backbone expressed in milimeters and E is the Young's modulus of the backbone material expressed in GPa.
Essuie-glace comprenant une armature allongée et incurvée faite d'un matériau souple et élastique, dont le module d'élasticité se situe entre 50 et 350 GPa. L'armature possède un profil transversal sensiblement et spatialement consolidé sensiblement à tous les points sur sa longueur. L'amplitude de la largeur au point sensiblement le plus large de l'armature, Wm (exprimée en millimètres), est au plus (-8-889.10<-5> * E + 0,05378) * L 5,25, L étant la longueur totale de l'armature exprimée en millimètres et E le module d'élasticité du matériau de l'armature exprimé en GPa. L'invention concerne également un rapport entre l'épaisseur et la longueur de l'armature.
Smart & Biggar
Trico Products Corporation
LandOfFree
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