Variable force spring and variable torque spring are very similar
with constant force spring and constant torque spring. Variable
force springs and variable torsion springs can break through the
influence of Hooke's law on traditional springs, so that stroke and
force no longer increase proportionally, but can achieve various
elastic force-displacement combinations such as negative slope
stepped constant force, which can be mechanically controlled. For
engineering requirements, use the relationship between elastic
force and displacement stroke to design various elastic curve
changes in specific applications. There are many different variable
force springs designed available for any given application to meet
customized solutions.
Application:
Variable force springs and variable torsion springs can be
customized for various elastic curve changes according to specific
applications,such as automotive seat belts, store shelf propelling
devices,pen-type drug syringe (insulin), cordless
curtains.
The
variable torque spring can be applied to cordless shade, it makes
user to adjust curtain up and down easily. The spring exerts
smaller torque step by step, which generate balance of gravity to
allow the curtain to stop at any height.
