With the development of engineering thought, car doors acquired the most incredible forms, many of which have remained in history, and some are still being used.
There are several common door configurations. 3 and 5-doors are called hatchbacks and universals: a third and fifth door is a trunk which leads directly into the passenger compartment. In the case of sedans and coupe, it is customary to talk about two and four door bodies, because the luggage is constructively separated from the passenger compartment.
There has been a recent trend towards cars with three doors: a driver's, a front passenger and one rear vehicle, like Hyundai Veloster.
Most often, the doors of passenger cars have hinge attachments. For minibuses and compacts, the doors are characteristic of the special cuter which are opened along the body.
Manual doors are opened manually-the lock is triggered when the handle or button is pressed. Some doors may be equipped with electric power train-such as public land transport and premium cars.
About the structural features of the doors
About the structural features of the doors
All of them, with a few exceptions, have a window and a lock. There are elements of the lock mechanism and the opening and closing mechanism between the inner and outer wall of the door.
It is worth noting that there are several systems of locking the car-locks can be automatic or manual (in old cars).
The door windows are also equipped with electronic or mechanical opening and closing. Typically, windows have a metal or plastic frame, but there are cars that do not have an upper frame.
There are many different types of doors, but only a few basic types are allocated.
The most common type with which everyone is familiar is the standard doors which are attached to the bodywork by one edge at the joint of the joints and thus open during the movement. This is an element of safety-if the door is open when the car is in motion, the flow of the oncoming air is the closing effect.
The second type is the back doors. They differ from the standard in the way they are attached to the body opposite to the body, but also at the hinges. It is easy to guess that their main disadvantage is insecurity. After all, if the back doors open, the flow of air can even be broken off the fixings. Many manufacturers have abandoned such a scheme, but some cars still use this type of door-mostly backdoor doors. This allows you to drop the central racks, which increases the doorway.
The sliding doors are arranged in such a way that there is a track along the body on which the door either hinges or hangs on it. The door is more cuter than a roller mechanism. This type of door is used in family minivans, commercial minibuses and cargo vans, mainly because of the fact that it makes the loading and landing and landing of passengers much easier.
An interesting fact is that in the people such doors are called "suicidal." In Russia, this name is not popular, however, in the English-speaking countries, "suicidal door" is a common term. The names of this name are unknown, but suggest that they are insinuable.
The next type is the famous "wing of the seagull". This type of poetic name was given due to associations with wings of a bird: the door hinges fastened to the top of the roof of the car, and in open state the wings are like wings. This type of door is installed on Mercedes-Benz SLS. The Bavars bet on an elegant type of doors of this type, though neither functionality nor convenience are different. It is these doors that are also in the seals of the cars, which are often equipped with electronic drive: so that the driver does not have to bend to the door to pull the handle.
The fifth type with a no less poetical title-"butterfly wing"-is similar to the previous one. These doors, too, are opened vertically upwards, and the nose of the body shall be moved. Such doors are a much more functional "wing of the seagull"-it is easier to land and set down the driver and the passenger, and they do not have to bend. "The butterfly wing", like the wing of the seagull, is the prerogative of sports cars.
Perhaps the most famous and used type is "Lambo-Doors". It is not difficult to guess who has the idea of creating such doors-the Italian manufacturer of Lamborghini. The scheme consists of the following: hinges at the edge of the windscreen. They open up and rotate around the anchorage. Their obvious downside is an uneasy landing and disembarkation, but there is no less obvious advantage in saving space in the parking lot. This door can be opened, even parked too close to the next car. However, it is unlikely that the owners of the "lamp-doors" are experiencing difficulties with parking spaces.
And the last, the most fanciful and the most unclaimed type is the upper spring doors. They look like folding cabins, which are used in aircraft industry. This type of design can be fixed by joints anywhere. It is worth noting that the top doors are popular in racing series with closed cockpit: for example, they can be seen on some sports prototypes in the 24-hour marathon in Le Mans.