What is a Torsion spring?

A torsion spring is a type of spring that stores rotational energy or resists rotational force. It works by twisting around an axis, unlike tension or compression springs that operate through stretching or squeezing. Torsion springs are commonly used in mechanisms that require rotational motion or recoil force, such as door hinges, mechanical clocks, pedals, and rocking chairs. They are particularly effective at storing energy in a compact space, making them ideal for use in tight spaces. The spring is typically made by twisting metal wire or bars, with its strength depending on the degree of twist.

Application of Torsion spring

１．Door hinges: Provide recoil force to automatically close the door.
２．Mechanical clocks: Store energy as a winding spring to maintain operation.
３．Rocking chairs: Provide recoil force to move the seat back and forth.

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