EXTENSION SPRINGS

摘要

WE ASKED THE EXPERTS AT LEE SPRING TO EXPLAIN ALL ABOUT EXTENSION SPRINGS. Extension springs - otherwise known as tension springs - are indispensable to many operations in vehicle applications and elsewhere, for example as returns on engine controls, also farm machinery, horse boxes, caravans, trampolines, garage doors, medical devices, toys, washing machines and white goods, and in the construction industry. They are characterised by a loop or hook on either end which is connected to other components giving them extra strength and manoeuvrability. An extension spring works by absorbing and storing energy in its coils so that when the two components attached at either end are pulled apart, thus extending the spring, it resists and exerts a similar amount of force. The reason extension springs are commonly used in cars is that many automobile parts use electrical solenoids or hydraulics to power movement one direction only, which later relies on the mechanical retraction force from an extension spring for full cycle. The extension spring comes in many shapes and sizes, including customised models which are popular with classic car enthusiasts looking for the perfect part. Several types of connector can be specified including full loop, double twisted loop and hook, and Lee Spring's extension springs can be ordered in a wide range of materials, including corrosion-resistant types which are especially important for vehicles that will be used exposed to the rain.