The roll forming device inputs the rotating drive force to the forming roll (2) from rotating force transmittingmeans (1).
该辊成形装置从旋转力传递机构（1）向成形辊（2）输入旋转驱动力。
2
The rotating force transmittingmeans (1) has input-side engaging means (3) on the side where it extends toward the forming roll (2).
上述旋转力传递机构(1)在朝向上述成形辊(2)延伸的前端侧具有输入侧卡合机构(3)。
3
The roll-side engaging means (4) and the input-side engaging means (3) are engaged to input the rotating drive force from the rotating force transmittingmeans (1) to the forming roll (2).