Articulation joint which can be locked by means of elastic...

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/68 (2006.01)

Patent

CA 2624009

The invention relates to an articulation joint which can move in a controlled manner between two elements that can rotate in relation to one another about an axis .DELTA., comprising: a hub (6) which is equipped with a cylindrical bore (7) having a .DELTA. axis and which is intended to be fixed to the first element; and a shaft (10) which is engaged in the bore in the hub (6), such that it can move in relation to the hub in rotation about axis .DELTA., and which is intended to be fixed to the second element. The invention is characterised in that the hub (6) and the shaft (10) are elastic and can deform under a stress (F3, F4) which is perpendicular to the .DELTA. axis and which is greater than a given value, in order to lock or brake the .DELTA. axis rotation.

L'invention concerne une articulation à mouvements contrôlés entre deux éléments mobile en rotation l'un par rapport à l'autre autour d'un axe DELTA, comprenant : - un moyeu (6) gui est pourvu d'un alésage cylindrique (7) d'axe DELTA et gui est destiné à être fixé au premier élément, - et un arbre (10) qui est engagé dans l'alésage du moyeu (6) pour être mobile par rapport au moyeu en rotation d' axe DELTA et gui est destiné à être fixé au deuxième élément, caractérisée en ce que le moyeu (6) et l'arbre (10) sont élastiques de manière à se déformer sous l'effet d'une contrainte (F3,F4) perpendiculaire à l'axe DELTA, supérieure à une valeur donnée, pour assurer un verrouillage ou un freinage géométrique de la rotation d'axe DELTA.

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