| 摘要 |
<p>The draw-straightening arm comprising a beam (1) called "horizontal beam" mounted with an ability to pivot about a vertical axis (24), by way of one of its end portions, and on the end portion opposite which is mounted a pivoting arm called "vertical arm" (9) connected to the said beam by way of a cylinder (16), characterised in that it comprises a positioning hoop (26) in the shape of an arc of a circle having a diameter (D) of size greater than the width (L) of the surface plate (32) on which the said draw-straightening arm is mounted or intended to be installed, this positioning hoop (26) preferably having a length of the order of 180 degrees and being arranged around the said pivoting axis of the beam which is equipped with a locking means (27) enabling it to be locked on any point of the hoop. <IMAGE></p> |
