Historical review of the origin of turn signals
There are many parts on the car, but they all have their own history. Each change brings together the wisdom of different eras. Looking back at history, let's take a look at what kind of historic changes the car's turn signals have undergone. It is understood that at the end of the 19th century, the Columbia electric car used electricity for headlights and taillights, and the lights were born. The turn of the lights did not appear long before the lights appeared. In 1908, the finger arm became a turn signal; in 1918, a turn indicator turned on by an electric motor was invented; in 1927, it was replaced by an electromagnetic controller; in 1938, it was installed in the rear of a car; after 1940, the car The front is equipped with a turn signal, and the signal switch has the function of adjusting at any time. The earliest cars had no lights, not to mention the turn signals. In some anti-war films, there is a red and green turning arrow above the dashboard of the cab, and the arrow can be moved when turning. It was also common on motorcycles of that year. The most representative Moto Changjiang 750 did not turn on the lights at the beginning. At the turn of the 20th century, the turn signal was not as high as it is now. Take Volvo's first truck in 1928. The turn signal on the truck was hidden inside the finger arm. Turn lights, it is reported that the car is an electric control to turn on the turn signal. Time went to the Volvo L395 trucks of the 1950s. This type of steering arm changing light also existed. It is understood that the pneumatic control is used to open and the driver is already quite comfortable to operate. This is the Volvo G89 truck in 1974. It can be seen that the turn signal is basically the same as now. The turn signal is closely related to traffic safety. Since the invention of the turn signal, the probability of an accident has been greatly reduced. Driving a turn signal while driving is actually telling the surrounding vehicles or pedestrians where you are driving and reminding them to pay attention to avoiding them. The history of turn signals is also like a TV series that has no ending, from scratch, from simple to mature. In the future, the turn signal will continue to write its own new story.
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