The Structure and Function of Motorcycle Helmets

Structure and Function of Motorcycle Helmets

The motorcycle helmet looks very simple, just like a beautiful shell, with some foam stuck inside, but in fact it is not.
Motorcycle helmets are a high-tech product. It is a complex multi-layer technical system consisting of five parts: shell, buffer
layer, lining, mask, and fixing system.

1. Shell

The shell is the first line of defense for motorcycle helmets, used to absorb and disperse impact energy. The shell can
usually withstand small impacts, such as falling off the seat when parking, without damaging its protective ability. Small bumps
 or scratches will not affect its performance. There are various materials for helmet shells, including ABS resin, PC ABS alloy,
fiberglass, carbon fiber, etc. The carbon fiber shell has the highest technological content.

2. Buffer layer

The function of the buffer layer is to slow down motion by deforming and absorbing impact. If a motorcycle accident
occurs, sudden stopping when it falls and collides with the ground may result in fatal head injuries. The function of the buffer
 layer is to slow down the movement speed and avoid sudden stops. The buffer layer is usually made of
EPS (expanded polystyrene) material, which works better when sandwiched together at several different densities.

3. Inner lining

The inner lining is tightly attached to the head, mainly used to wrap the helmet around the head, prevent the head from
shaking or rotating, reduce noise inside the helmet, absorb impact, sweat, and skin oil, and serve as a barrier between the
 head and the cushioning layer. A good motorcycle helmet usually has a detachable and washable comfortable lining.

4. Masks

The function of a mask is to allow car owners to see the road clearly, while preventing objects from bouncing off the
road and injuring the face. A good mask is made of polycarbonate and has undergone durability and transparency tests.

5. Fixed system

A fixed system is a device that secures a motorcycle helmet to the head, preventing the helmet from tilting forward
and slipping off the head. Many riders do not like to properly fasten their motorcycle helmets because it may cause them
to detach their heads in the event of an accident, which is no different from not wearing a helmet.