Driving and displacement of a beam resting on two guide rails and one or several carriages which are integral with the beam

摘要

P the invention relates to a drive device and the displacement of a beam according to a direction parallel to the guide rails and one or several carriages which are integral with the beam in a direction transverse to the displacement of the beam. / p & & p & the device comprises two cables 7 and 8 are tensioned on the pulleys 5 are fixed at the end of the guide rails 3 of the beam 4 and on the pulleys 6 of the beam 4. The cables 7 and 8 are wound in opposite directions on the drums 9 of the motors / p & & p & m1 and m2 are placed symmetrically on either side of the rails, so that, when the motors are driven in rotation, they cause the displacement of the beam or of the carriage is fixed on one of the cables or the simultaneous movement of the beam and the carriage. / p