Snow clearing device

E - Fixed Constructions – 01 – H

Patent

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Details

E01H 5/06 (2006.01)

Patent

CA 2277103

The invention relates to a snow-clearing device having a holder for connecting a blade (7) to the lower edge (6) of the snow-clearing device, such that the blade is given an acute, cutting angle to the base and can be folded backwards, thereby avoiding damage when running into an obstacle, and automatically resume its cutting angle after passing the obstacle. The holder comprises a trilateral hollow beam (1), the three sides of the beam forming respectively: a first fixing element (3) which is adapted to be fixed to the lower edge (6) of the snow-clearing device; a second fixing element (4) which is adapted to engage the back of the blade (7), and a support element (5) connecting the other two elements (3, 4). At least the second fixing element (4) and the support element (5) are made of an elastic polymer material. The hollow beam is adapted to fix the blade along a line along the lower part of the second fixing element (4) close to a corner of the beam, and the elastic elements (4, 5) are adapted, on overloading, to be buckled, the support element (5) being buckled towards the cavity (2) of the beam, and the second fixing element (4) being buckled forwards/upwards.

L'invention concerne un porte-lame permettant de raccorder une lame (7) au bord inférieur (6) d'un dispositif de déneigement de manière que la lame forme un angle d'attaque aigu par rapport au support et qu'elle se rétracte à la rencontre d'un obstacle pour éviter d'être endommagée puis reprenne automatiquement son angle d'attaque une fois l'obstacle passé. Le porte-lame comprend un profilé creux (1) trilatéral. Les trois côtés du profilé forment respectivement: un premier élément de fixation (3) qui se fixe au bord inférieur (6) du dispositif de déneigement; un second élément de fixation (4) qui s'applique sur le dos de la lame (7) et un élément-support (5) qui relie les deux éléments (3, 4). Au moins le second élément de fixation (4) et l'élément-support (5) sont réalisés dans un polymère élastique. Le profilé creux sert à fixer la lame le long de la section inférieure du second élément de fixation (4), cette section étant à proximité d'un coin du profilé. Les éléments élastiques (4,5) sont conçus pour se plier en cas de surcharge, l'élément-support (5) se coudant vers la cavité (2) du profilé et le second élément de fixation (4) vers l'avant/le haut.

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