Patent ID: 7493864

Claim:
A carriage intended to be placed substantially transversely between first and second lateral girders substantially parallel to each other, the carriage comprising: a stirrup at each of its lateral end parts, a first stirrup being able to cooperate with the first lateral girder and a second stirrup being able to cooperate with the second lateral girder so as to allow movement of the carriage in a longitudinal direction (x) substantially parallel to the lateral girders; a central girder placed between the stirrups; and a first connection arranged between a first lateral end of the central girder and the first stirrup, the first connection comprising a swivel connection and a first transverse slide situated at a distance from the swivel connection, and a second connection arranged between a second lateral end of the central girder and the second stirrup, the second connection comprising a vertical support and a second transverse slide, the support and the second transverse slide being arranged so as to allow a rotation movement of the central girder with respect to the first stirrup around longitudinal (x), transverse (y) and vertical (z) axes with limited amplitude, the connections being arranged to allow the movement of one stirrup with respect to the other, according to six degrees of freedom, with limited amplitude.