Patent ID: 11878337
Assignee: INGVEST AB
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A method according to claim 8, wherein the forming stations comprise a number of first forming stations (20a) and a corresponding number of second forming stations (20b), and comprising the steps of
alternately arranging the first and second forming stations (20a, 20b) in said feeding direction,
folding, with the clamping rollers (22a, 22b, 23a, 23b) of each first forming station (20a), fold only the first web (4a) in relation to the first side flange (3a) and in relation to the central flange (2), and
feeding, with the clamping rollers (22a, 22b, 23a, 23b) of each second forming station (20b), only the second web (4b) in relation to the second side flange (3b) and in relation to the central flange (2).