Crash Helmet

Helmets and their Facts

  • They should not block the person’s vision.
  • It should ensure that hearing is perfect.
  • The weight should be as light as possible.
  • Ensure that there is no fatigue to the rider.
  • Skin diseases should not be caused due to it.
  • Neck Injuries must be reduced for this.

Preferred Helmet Kinds

Thermocol must be in abundance in the helmet. 20 mm is the bare minimum. It must be safe and should race till the helmet’s sides. The helmet covering the entire face provides more safety.

Helmets Components and their Contributions and Roles

The Shell: Shell of the helmet is created by a process of thermoplastic moulded and inject or through a force mould thermo which is set and is further reinforced using glass- fibres.

In the case of an impact, it absorbs major energy: -the shell takes the impact and bends which enables an effect of absorption of the force. If the speed is moderate the shell is hard enough to absorb 1/3rd of the energy of the impact.

  • The impacts local forces are distributed: Unbending objects including stone or even a prognostic beam may cause the skull to fracture even at small forces, these shells enable the distribution of these forces during these impacts and hence eliminate the risks of them penetrating.
  • Scope for sliding on the surface of road: Due to the convex shape and the rigid nature of the shell, there is a scope for the helmet to slide on the road protecting immediate damage to the skull.
  • Enhanced protection for the face: Helmets covering the full face also provide protection the rider’s jaw. There is a chin bar in these helmets that are specifically designed to protect the chin.
  • The foam liner: This is crafted using mouldings of a polystyrene bead/s or using foam of polyurethane. This provides a distance to allow the stopping of the head. There is a scope for 90% of compression in the foam on impact; having said that, there is a partial recovery post the impact for the foam. This increases the distance of stopping for the head.
  • Proper strapping system: if the chin wrap system is to work in any case, it is essential to have a well fitted helmet. This should be properly tested while buying or wearing a helmet. It is advised to fasten the chin strap as tight as the chin can bear and then the rider must try to remove the helmet from the front by pushing from the rear. If it comes off then the helmet is not well fitted and will come off during the impact.

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