ROLLER LEVELER

Even if a number of corrective rollers used to correct steel sheets is comparatively low, when the pitches of said rollers are changed, the disclosed roller leveler makes it possible to roughly equalize the pitches of the corrective rollers in the transfer direction of the steel sheets. Said corrective rollers are arranged in a zigzag pattern. The disclosed roller leveler (1), which has a comparatively simple structure, is provided with: a first roller group (2) that has first corrective rollers (4 to 7) arranged with a pitch P1 in the steel-sheet transfer direction; a second roller group (3) that has five second corrective rollers (9 to 13) that are arranged, with a pitch P1 in the steel-sheet transfer direction, in a zigzag pattern with respect to the first corrective rollers (4 to 7); a first pull-back mechanism (29) that pulls first corrective rollers (5 and 6) back from the transfer path (PL); and second pull-back mechanisms (32 and 33) that pull second corrective rollers (9, 10, 12, and 13) back from the transfer path (PL). The second roller group (3) is provided with third corrective rollers (8 and 14) that are disposed at a pitch P1 in the steel-sheet transfer direction with respect to second corrective rollers (9 and 13).