Spiralfjädrar

Spiralfjädrar, commonly known as coil springs, are mechanical devices made from a helical spring rod coiled into a shape resembling a spiral. Their primary function is to store and release mechanical energy, absorb shock, or maintain force between contacting surfaces. The elasticity of the material used, typically steel alloys, allows the spring to deform under load and return to its original shape when the load is removed.

There are several common types of spiralfjädrar. Compression springs are designed to resist a compressive force, shortening when a load is applied. Extension springs are designed to resist tensile force, lengthening when a load is applied. Torsion springs are designed to resist a twisting force, coiling or uncoiling when a load is applied. The specific design and material properties of a spiralfjäder are determined by its intended application.

Spiralfjädrar are ubiquitous in modern machinery and everyday objects. They are found in vehicle suspension systems to absorb road imperfections, in mattresses for support and comfort, in pens to retract the tip, and in countless industrial machines for a variety of purposes including damping, actuating, and positioning. The effectiveness and lifespan of a spiralfjäder depend on factors such as the material’s fatigue strength, the applied load, and environmental conditions.