The material and structure of bicycle helmet

Bicycle helmets can serve social utility by constantly absorbing the impact of cultural collisions. In short, the foam lining inside the bicycle helmet system cushions the shock that hits the skull. In the sense of traditional social and economic development, many studies on Chinese bicycle helmets are made of EPS (expanded polystyrene) foam concrete structural material science and technology. Once EPS foam shatters and deforms in an accident, it cannot fully recover and we no longer have to learn to absorb the impact of a crash. EPP (expanded polypropylene) foam can be effectively recovered after being affected by different impacts, but its ability to absorb impact for students is far less than EPS foam. Universal motors have also been extensively studied as a foam metal material for bicycle helmets, and are actually a more conscious foam problem that is not prone to cracking.

Another trend in bike helmets is rounder, smoother, commuter designs. In a bicycle accident, these problem design methods are usually designed to absorb the impact force to as large a degree as possible. Although they are a great choice for recreational and commuter cyclists, professional cyclists and racers still tend to opt for longer aerodynamic helmets.

The bicycle helmet is mainly composed of the outer shell and the inner bladder of the foamed layer. According to the manufacturing process, it can be divided into integral molding and non-integral molding.

The one-piece helmet is to put the plastic PC shell and EPS into the mold design for one-time stamping material forming. The shell and the foam are a whole enterprise, and there are no gaps. Living together by traditional hand gluing, we can see for ourselves some obvious gaps between the shell and the foam. A one-piece helmet, shell and airbag will fit better, protect the head better, and the price will be higher.

Whether there is a skeleton inside, the helmet can improve the overall strength of a helmet system by laying a skeleton in the inner liner, so as to avoid the loss of the protection of the legs and head due to the rupture of the helmet liner in the event of a strong cultural impact. In the past, our research techniques were mainly used for high-level helmets. In recent years, with the maturity of production technology, my country has gradually developed and extended to other different levels.

Reinforced structural design mainly refers to Mips, a multi-directional impact protection system. A yellow barrier is set inside the helmet, which can buffer the impact channel of different directions and angles when the head is hit, and avoid more serious injuries caused by spinal twisting. Feel the protective effect of the meter ps through the moving picture. Mips technology was born in the last century, but it was not widely spread in China until recent years. At first, our research focused on some corporate helmet models. Now more and more brands and models choose to join the mips family. On a budget, we also try to choose a mips version with more security.

Post time: Sep-27-2022