The possibility of suffering a vertebral-medullary injury in a motorcycle accident is extremely high. A damage that can be aggravated if the injured person is manipulated incorrectly. Therefore, you should never remove this safe helmet of an injured motorcyclist, although there is a technique to do so, which the toilets use.
In this sense, some medical professionals believe that articulated helmets, in which it is possible to lift the front and leave the entire letter exposed, facilitates the performance of sanitary maneuvers of resuscitation to the injured and even emergency medical assistance. These helmets are approved for circulation but not for sports competition. In any case, since in addition to injuries to the spine, it may be the case that the brain is damaged, it is best to assist the motorcyclist without removing his helmet at any time.
Not without my safe helmet!
Wearing a helmet at the elbow is one of the habits of some more ingrained bikers, especially in summer when the heat is squeezing. As it is to be supposed, this position of the case does not serve to protect but it is also that it can bring other negative consequences such as producing multiple fractures in the arm at home of accident. In addition to the heat, other reasons why the helmet is not usually worn when driving is simple coquetry, discomfort or unconsciousness.
Something to take into account, if we stop to analyze the location of the injuries in case of accident, 40% of these are in the head, followed by 25% for the whole body, 9% in the arms and legs, 8% abdomen and finally 7% on face and neck.
The helmet inside
Set of complementary elements to protect the head
The helmet is a safety accessory that protects the motorist’s head. Analyzed by parts, each of them is designed to act against the different aggressions that can be suffered by an impact or fall.
The number of elements that make up a helmet does not vary basically between the different models that exist in the market. Each one of the pieces that compose them is designed to protect the head in case of fall or impact. However, if it varies its quality, level of protection and price depending on the model chosen and the materials used in its manufacture, although any helmet that is approved has been subjected to a sufficient number of tests to ensure the minimum safety required to circulate . Thus, in the manufacture of the outer shell of the helmet two types of
materials: injected plastic, polycarbonates and resin composites reinforced with fiberglass, carbon and other materials. According to the experts there is a great difference in quality between them, since these lately offer much greater resistance, flexibility and comfort to the user, although also its price is higher.
Elements that make up a safe helmet
– Internal housing: It is a protective filler whose mission is to absorb the energy of the blow as much as possible and reduce the movement of the brain inside the cranial cavity. They are concave cells (expanded polyester) that are compressed after a blow so, after an accident, you must change the helmet.
– External housing: It is the most rigid part. It must extend the energy of the impact throughout its surface by reducing it and preventing it from penetrating any sharp object. It can be made of plastic material (polycarbonate) or reinforced resin composites. The latter are better.
– Screen: Protects the eyes and respiratory tract from wind, insects or any other element. Its quality varies depending on the material. The best have anti-scratch treatments, reflections or fog and protection against infrared and ultraviolet rays.
– Aeration system: Allows the sifted entry of air to avoid the heat it can carry and protects it from impurities and ventilates the interior. It is adjustable.
– Comfort padding: It is a fabric that separates the protective padding from the head, providing comfort to the rider. Some of these fabrics are designed to facilitate ventilation and absorb perspiration.
– Fastening system: This should prevent it from sliding off the motorist’s head in the event of an accident or impact, wherever it comes from. It is important that it is fastened and not too loose so it does not come off. Ready to move
Before commercialization, motorcyclist helmets undergo different type approval tests that verify the quality and resistance of their components. These tests analyze seven variables: general dimensions, peripheral vision, impact absorption, resistance to penetration, lateral and frontal deformation, resistance of the fastening system and angulation, where the degrees of the head that are left exposed is determined if the helmet receives impacts in critical areas.
Except for the first two measurements, the rest of the tests are repeated under three different environmental conditions, at -20, 25 and 50 degrees. In addition tests are carried out on helmets previously subjected to aging with water, ultraviolet rays and different solvents This is intended to simulate real situations and check the behavior of a safe helmet after a long time of use. These tests are repeated, as tests of conformity prior to their commercialization to a determined number of helmets chosen at random.
The helmets have impact resistance and energy absorption capacity. It also measures the time that the impact energy is acting on the head.
Did you know?
In the 30s appear the first motorcyclist helmets. They were carcasses of leather fastened under the throat that, above all, protected from the cold and dust and, in some cases, avoided the friction of the head against the asphalt. Later, these helmets of flexible material were replaced by others more rigid to avoid that any sharp object could pierce them.
Later studies showed the importance that the head was not in direct contact with the carcass. In 1975, the first European standard that regulates the manufacture of these was approved, setting the minimum space to be protected. Also, during the 70s, the first integral helmets appear that, thanks to the screens, isolate the head from the outside. Successive regulatory revisions have increased the minimum area of the head that must be covered, the effectiveness of the restraint system and the positioning of the helmet, until reaching the current parameters.
In Spain, the circulation regulations of 1992 made the use of a safe helmet mandatory for motorcycles of any displacement, on all roads (both urban and interurban) and affecting both drivers and passengers. Before this date, only motorcycles with more than 125 cubic centimeters should use it.
Types of helmets
In the market there is a wide range of helmets for both motorcycle and moped that cover all tastes and all pockets. In any case, it can be said that those made with plastics are cheaper but of lower quality.
– Integral of folding chin
– Field integrals
– Jet with screen and visor
– Jet with screen
How to calculate the size
It is important that the safe helmet fits on the head without that the comfort of the rider remains. If you do not know the exact size of the helmet you must buy, take a tape measure, wrap your head above the eyebrows and the top edge of the ears. The measurement, in centimeters, will correspond to the size of your safe helmet. Even so, if you doubt between two sizes you should always buy the tightest one. Remember that helmets give up with use.
When to change it
Due to its structure, the cells that make up the protective filler (responsible for absorbing most of the energy of the impact) deform after a blow and do not return to their original position or, therefore, their protection capacity. Therefore, change the helmet if it has received a blow (a simple fall from a height greater than one and a half meters) although no damage is seen at a glance. It could be ineffective in the face of an accident.
For the same reason, do not use it if it has dents, discolorations or cuts somewhere. The thermoplastic hulls expire after two years of use and deteriorate in contact with paints and adhesives. They are usually cheap so it is worth changing them before they stop being effective.