Carriage and gantry comprising such a carriage

A carriage intended to be placed substantially transversely between first and second lateral girders substantially parallel to each other, the carriage comprising:

• a substantially U-shaped stirrup member;
• at least first and second intermediate members;
• a slotted structure, having an elongated slot, projecting from one of the members;
• an insertion structure, having a portion movably riding within the slot, coupled to another of the members;
• and
• a connection movably coupling the one of the members to the another of the members while allowing three dimension movement therebetween, the connection being spaced away from the slotted structure and the insertion structure.

A carriage intended to be placed substantially transversely between first and second lateral girders substantially parallel to each other, the carriage comprising:

• a third girder extending in a substantially horizontal direction substantially perpendicular to the first girder, the third girder being movable relative to the first girder;
• and
• a member being able to couple the third girder to the first girder, the member operably moving with the third girder, the member comprising at least one pin-and-oversized slot assembly which allows three dimensional misalignment of the first girder relative to the third girder while allowing longitudinal movement of the third girder relative to the first girder wherein the pin-and-oversized slot assembly comprises:
• a U-shaped, slotted structure situated in a substantially horizontal plane and being elongated transversely toward the third girder;
• and
• a pin coupled to the third girder and extending substantially perpendicular relative to an elongation direction of the slotted structure, the pin being movably located in a slot of the structure with clearance so as to allow transverse sliding of the third girder with respect to the first girder and to allow rotation of the third girder with respect to the first girder.

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 comprising a swivel connection and arranged between a first lateral end of the central girder and the first stirrup, and a second connection comprising a vertical support and a transverse slide that are arranged 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 second connection arranged between a second lateral end of the central girder and the second stirrup, 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, wherein the first stirrup comprises on the one hand a concave housing having a substantially vertical axis and on the other hand a U-shaped piece of complementary shape to the housing that is rigidly fixed to the central girder so as to be able to cooperate with the housing in order to form the swivel connection, and the central girder is provided with a vertical rod arranged so as to be inserted in the U-shaped piece so as to be placed so as to be substantially aligned with the axis of the concave housing.