Device for correcting meandering in non-contact conveyance for strip material

A device for correcting meandering in a non-contact conveyance of a strip material that supports and conveys a continuously travelling strip material at a non-contact state by floating the strip material with a group of one or more floaters arranged in series below the strip material, characterized in that

• two or more gas nozzles for jetting gas to a lower surface of the strip material are disposed on both sides of the strip material in the widthwise direction, as a mechanism for imparting tilting to the strip material to operate tilting of the strip material in the widthwise direction above the floater, irrespective of which side the strip material meanders, at least in one section between the most upstream floater among the floater group and a conveyance roll located immediately upstream of the most upstream floater, between two adjacent floaters, and between the most downstream floater among the floater group and a conveyance roll located immediately downstream of the most downstream floater,
• wherein a gas pressure jetted from each of the two or more gas nozzles is different between the two sides of the strip material in the widthwise direction.