Round manhole with hinged half covers for roadway

E - Fixed Constructions – 02 – D

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94/12

E02D 29/14 (2006.01) E02D 29/12 (2006.01)

Patent

CA 1218552

PRECIS DE LA DIVULGATION: Dans ce regard comportant,articulés sur un cadre,deux demi-tampons munis,chacun,de trois tenons radiaux ,l'axe horizontal de l'articulation de chaque demi-tampon tra- verse l'oreille postérieure correspondante,tandis que le tenon radial postérieur est muni d'un logement interne avec profil en came dont le profil est déterminé afin, qu'en position de fermeture,l'axe horizontal soit sans contact avec le logement,mais qu'en cours d'ouverture,il contrôle le mouvement de ce demi-tampon,d'abord seul,puis sur le reste du mouvement,en combinaison avec le bord postérieur du tampon venant en appui contre la paroi et sur le fond de l'oreille.

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