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

Claim 5:
6. A roll-forming machine according to claim 1, wherein
the forming stations comprise a number of first forming stations (20a) and a corresponding number of second forming stations (20b);
the clamping rollers (22a, 22b, 23a, 23b) of each first forming station (20a) are configured to fold only the first web (4a) in relation to the first side flange (3a) and in relation to the central flange (2);
the clamping rollers (22a, 22b, 23a, 23b) of each second forming station (20b) are configured to fold only the second web (4b) in relation to the second side flange (3b) and in relation to the central flange (2); and
the first and second forming stations (20a, 20b) are alternately arranged in said feeding direction.