Enormous extendibility of constant force in excess of 50 times the relaxed length can be achieved.
The original concept of constant force springs was Extension Springs for counterbalancing windows For many years this has been a perfect aid in the opening and closing of windows from residential applications to black taxi cabs through to Rolls Royce and Aston Martin cars.
Constant force extension springs provide a huge range of application opportunities. Springs can be can be mounted on a bobbin or bush or free running in a cavity or recess. Springs can be joined or laminated to provide increased force with minimal increases in space requirements.
