| 摘要 |
A method for making arcuate coil springs from straight coil springs. The method particularly comprises a step of bowing said straight springs during heat treatment, and is remarkable in that, for bowing, a lasting arcuate shape is imparted to the springs substantially by giving them the shape of a portion of a turn to provide the spring with a counter-defect prior to performing finishing steps. A spring produced according to the method and devices for carrying out said method are also disclosed. Such devices comprise means for holding at least the end coils of the springs in staggered positions, which means may consist of a holder (D2) with fastening means (5a, 5b, 6a, 6b, 10a, 10b, 11a, 11b) for the end coils of the springs (R2). |
