Actually, the appointment of a caretater is to remove water and dirt from the surface of the windshield and the back glass, improving the driver's review. In the past, the winders were equipped with the headlights of the car, and the technology had gone back to the past.
A patent on a technology for the vibration of blades is owned by a female engineer named Mary Anderson
Like any car device, the wipers have improved over time, engineers came up with new configurations and worked out the device. The modernization process continues, as the windshield wiper has to correspond to a vehicle whose design is constantly progressing. For example, producers seek to improve visibility by increasing the area of windshield or giving it a new form-and with it, the wipers must change.
The first windshield wipers appeared at the beginning of the 20th century. In 1903 the mechanism of motion of two brushes was invented on the surface of the windshield and a decade later, the glass cleaning system was applied universally on all brands. The patent on the technology of the wiper blade is owned by a woman engineer named Mary Anderson.
There is another name, Robert Kearns, with the history of the wipers. It was Kearns who had the idea of a time interval in the work of the caretans. Moreover, he managed to make a good money on it. He patented his invention, and when the largest American automobile companies, such as the Chrysler and Ford, began the introduction of this technology, Kearns sued them. His lawyers won the case, the manufacturers were obliged to pay the inventor more than $30 million.
The wiper design itself consists of three main elements: the attachment receptacle, the pressure receptacle, and the wiper blade.
So, the attachment host is a removable mechanism that includes a pin and the tie-down of the wiper glass. They are used by the adapter-most often, this feature is unique to each manufacturer, but it is the main value: the reliability of the whole construction depends on it.
The hymn block is a system of interconnected links, and can vary from three to six. This depends on the size of the wiper blade and, like the adapters, from the ingenuity of the manufacturer. The most frequently used arc is the metal, but the plastic options are also possible. If the arc is metallic, rubber or plastic inserts are made in the places where they are connected and prevent moisture and dirt from entering the system.
Finally, the third element is the rubber brush itself, which removes moisture and dirt from the surface of the glass. It is dockmounted to the edges of the links. At the same time, the holders themselves are made in such a way that the brush walks freely along them-and that the toothbrush does not fly, the holders are equipped with delimiters. It is made of dense rubber and must have a number of properties. First, the toothbrush must be flexible and the second is soft enough and at the same time tight enough to fit the window.
Sometimes, instead of two traditional wipers, they use one. There are variations with three brushes
The wiper engine consists of a lever that rotates on one end, while at the other end of the wiper it moves on a given trajectory, usually from left to right. The switch control, usually located on the steering column, can control the frequency of motion. The engine is activated by the electric motor.
In different vehicles, the toothbrushes may be located and moved in different directions. Standard brushes are driven by a quarter of the circle from right to left. Other options: the brush may be oppositit in relation to each other-then they differ from side to side.
Sometimes, instead of two traditional wipers, they use one. There are variations with three brushes. It happens that the toothbrushes are installed, not from the bottom, but at the top of the glass.
Wherever the windscreen wipers are located and no matter how they move, the main thing is that they perform their basic function well and provide the driver with good visibility in difficult weather conditions.