GRUE ROULANTE DE GRANDE FORCE PORTANTE A FLECHE EXTENSIBLE, NOTAMMENT A FLECHE TELESCOPIQUE

GRUE ROULANTE DE GRANDE FORCE PORTANTE DONT LA FLECHE 3 EXTENSIBLE, NOTAMMENT TELESCOPIQUE, EQUIPEE DE CYLINDRES DE BASCULEMENT 4 ET DE DISPOSITIFS DE COMMANDE 5, EST RELIEE AU CHASSIS ROULANT PAR L'INTERMEDIAIRE D'UNE PARTIE DE CADRE PORTANT LE PIVOT ET QUI COMPORTE DES ORGANES DE SOUTIEN MOBILES PAR RAPPORT AU CHASSIS ROULANT 1 ET MUNIS D'APPUIS MOBILES EN HAUTEUR, CARACTERISEE EN CE QUE QUELQUES-UNS AU MOINS DES ORGANES DE SOUTIEN 9 CONSTITUENT, AU MOINS DANS LEUR POSITION DE ROUTE, DANS LAQUELLE ILS SONT ORIENTES EN DIRECTION DE LA PARTIE DE CADRE 7, DES ELEMENTS PORTEURS DONNANT AU CHASSIS ROULANT 1 LA RIGIDITE NECESSAIRE POUR LE TRANSPORT. Vehicular crane of high carrying capacity having an extensible arm, especially a telescopic arm. The vehicular crane has a maximum carrying capacity of greater than 250 metric tons obtained in such a way that, with a stroke length which is sufficient for the situation, the vehicular crane can be ready for use immediately after reaching the place of use without having to undergo expensive assembly procedures. The extensible arm of the crane is connected with an undercarriage via a frame part which carries pivot mounting. The crane is also provided with wheeled swivel supports as carrier supports which are provided with vertically adjustable ground support elements and undercarriage wheels of which the direction can be adjusted. On the drive side, the frame part is rigidly connected with the forward portion of the undercarriage, and on the other side is connected with two wheeled swivel supports, the undercarriage wheels of which respectively form a plurality of wheel sets, each of which has at least one pair of wheels. The undercarriage wheels, as well as the swivel connection of the wheel sets, are disposed below the wheeled swivel supports. The forward portion is provided with at least one vertically adjustable ground support element. The diameter of the undercarriage wheels of the wheeled swivel supports is less than the diameter of the undercarriage wheels of the forward portion.