Product designing often involves challenges of transferring mechanical motion between different parts of the product. A product can involve different types of motion like horizontal, vertical, radial, circular, see saw, spiral etc. The product designer’s community has to intelligently deal with parameters like space, cost optimization, strength, user comfort, look and feel etc. A combination of parts and structure designed to perfection work in synchronization to achieve the desired motion.From movement of a ball pen’s tip to the to and fro motion of the switch’s actuator, there is enough science and wonder in exploring designing methods for all mechanical motions. The factor of easiness and simple working is always fulfilled too. How does it all happen? What is the magic? Have a look at some of the common yet unseen mechanics involved in transfer of motion from the brains of product designers.
The history of Ball pen dates back to 1880s. It was John Loud who received the first patent on Ball pen. Technically speaking ball pen is a device, which when rubbed on a paper leaves a permanent continuous colored mark following the direction of the motion. Ball pens are available in various size, shapes, colors and prices varying from almost a few cents to few hundred dollars and even more. Researchers have been working continuously to improve the performance of the pens. Some important performance parameters include the grip, the tip of the pen and controlling the ink flow for longer life. Manufacturers produce ball pen in different shape, size and color. A plastic or a metal casing encapsulates the entire assembly. The tip of the pen is kept inside the outer casing by means of mechanical arrangements when it is not used. Broadly classifying the ball pens are available in two forms disposable or reusable.