Veerdrijving

Veerdrijving is a Dutch term used to describe actuation or propulsion produced by springs. In mechanical engineering, a veerdrijving system stores energy in a compressed, stretched, or torsioned spring and releases it to move a component. In English-language contexts this concept is most often called spring-driven actuation or spring propulsion.

Typical spring types include coil springs, torsion springs, and leaf springs. Actuation can be linear, when a spring pushes or pulls a rod, or rotational, when a torsion spring drives a gear or shaft. Release mechanisms may involve catches, latches, or cams to control timing and extent of motion.

Applications range from wind-up toys and mechanical clocks to door closers, retractable tools, and some types of mechanical watches. The energy storage is advantageous in situations where electrical power is unavailable, noisy, or undesirable, and where simplicity and compactness matter.

Advantages include simple construction, quiet operation, and low maintenance; drawbacks include limited energy density, nonlinear energy release, and fatigue or creep in springs. Design considerations address preload, material choice, temperature sensitivity, cycle life, and safety in case of spring failure.

Veerdrijving is not a widely standardized term outside Dutch-language contexts. In English, writers more often describe “spring-driven actuation” or “spring propulsion.” The concept overlaps with other actuation methods such as wind-up mechanisms, mainsprings, and clockwork devices.