The other day I read about a report from a school inspection in Canada a week ago. They were talking about safety in school and apparently old style paper cutters are a safety hazard since they don’t have safeguards on them. These safeguards available for paper cutters contain torsion springs on the blade arm. I didn’t know that. I guess I learned something new today :).
Rubber, plastic or steel. It’s time to think outside the box when it comes to the most demanding, high-wear, abrasion and impact applications. Engineers are now working with cast polyurethanes. To make it work better, among many other things of course, the torsion spring is modified. Great job!
Let’s (torsion) spring into action and start the Easter holidays! Torsion springs are very commonly used since they are very flexible and with great machine parks the springs can even be made in only one machine. No extra handling needed. That’s what I call efficient.
Forget about slalom skiing or snowboard, here’s something completely new to me – Fat Bike Ski. Between this fork mount and the ski is a dual pivot urethane torsion spring, which allows the ski to smoothly follow trail pitch without being too flimsy—think of it as an artificial ankle on a skier. Talk about great engineering!
New week! Let’s make it a good one and start by shedding some light on what makes torsion springs so great. In technical terms we’re talking about the torque performance, in this case . Torque is equal to force x leg length: M= F x A. Torsion springs have a linear spring characteristic, i.e. if a spring is turned 10° to provide torque of 1 Nmm, the same spring will provide a torque of 2 Nmm at 20° torsion. Interesting!