Defining the Usable Stroke of a Constant Force Spring Assembly
Usable stroke is the interval that satisfies output, guidance, retained-wrap and attachment requirements in the assembled mechanism.
Usable stroke is the interval that satisfies output, guidance, retained-wrap and attachment requirements in the assembled mechanism.
Not necessarily. The force-to-torque conversion and the output radius determine the resulting cable tension.
Controlled pre-deployment can place normal operation within the measured plateau, provided the approved assembly method retains and guards the strip.
The spring’s nominal output does not replace the assembly load calculation. Orientation changes gravity and the way guidance carries the moving mass.
Use an independently designed stop and manage impact energy. The spring’s end attachment should not serve as the routine travel limiter.
Measure both directions and separate spring behavior from slide friction. The difference between assembled traces is not automatically a spring defect.