วันพุธที่ 8 มิถุนายน พ.ศ. 2554

Evolution of construction helmets

The helmets were about a hundred years ago Bullard, a family-owned production of protective equipment is designed. Now specializing in industrial head protection, including the construction of Hard Hats. In the early days there was no head protection in the construction industry. Then with time and acceptance of security measures, the helmet was like a baseball cap design. He had a small leather hard and tense shellac. E 'was used primarily by miners.

During the year 1915, Bullard began work on helmets, helmets, also known as then. E 'was originally made ​​in color to the canvas of steam, with the black and was said to be a "hard boiled hat. This proved to be a source of inspiration for the production of construction helmets. Bullard, in collaboration with the engineers of that time, on a helmet that would protect workers from the consequences of falling objects of design. Therefore, the data miningHelm has been transformed into a robust hardware.

The helmet was first built in the days of aluminum, what was considered a very strong and quite easily. They were very effective protection against falling objects and bad weather have been very dangerous for electrical purposes. The reason is that aluminum is a good electrical conductor. In 1940, Bullard was with the three ribs, heat resistant fiberglass helmet.The glass fiber was soon replaced by thermoplastic material due to resistance cheaper and more suitable for heat.

In 1980, again a hat Bullard revolutionary new hard disk. This time in the development and manufacture of the helmet, was the focus of a suspension for reasons of their own fieldwork. This is also helped in a new era for the rules and safety equipment to protect the head. The new design incorporates a slip ratchet helmet suspensionwith a knob on the back for easy sizing. This model, known as the 3000 R called, is made of polyethylene plastic. This makes it extremely lightweight, durable and easy to shape and not electrically conductive. Plastic is also available with a UV inhibitor to treat the external environment.

Many other accessories can be added to the regular construction helmets. Face shields, sun visors, Lamp, ear protectors and neckHearing Protection, sweat towels absorbent lining of the hat, radios, pagers, walkie-talkies and cameras are just some of them. But the future of the hard hats can be aired. This will help in the production of portable hot hard hats for workers in extreme weather conditions and normal conditions.

Polo Polo

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