Frameless doors have always been the focus of attention. Whether it's a boy who loves cars or a girl who looks first, frameless doors can be called "omnipotent". But for such an attractive configuration, we rarely see it there. Why is that?What are the advantages and disadvantages of frameless doors?
In the past, frameless doors were only available for high-end luxury sports cars or coupes and were not available to the average consumer. Since you can't buy them, there's no need to discuss their pros and cons, as you see on the street. The Mercedes-Benz Grandg doesn't really care if it's four-cylinder or six-cylinder.
However, thanks to the rapid development of related technologies and the rapid decline in costs, this configuration can now be seen on 300,000 or even 200,000 level models such as BMW 3 Series GT, Volkswagen CC, and Tesla Model 3. Frameless doors. Compared to traditional framed doors.
At the beginning of the design of frameless doors, more technical issues such as sound insulation and waterproofing need to be considered, which virtually increases the manufacturing cost. That's why there are so many frameless doors. The reason for this is that it appears in luxury cars. The adhesive strip ages quickly, and I don't know if you have ever carefully observed the glass of the frameless door being raised.
Unlike framed doors, which can be equipped with more than three layers of weather stripping to achieve sealing, the glass strip of a frameless door can only be mounted on the body of the vehicle because it is usually exposed and therefore deteriorates over time. Brittle due to wind and sun. In addition, leaks can easily occur.
In order for the glass and the seal to fit snugly, most frameless doors are designed so that when the door is closed, the window is fully raised and inserted into the groove inside the seal;When opening the door, lower the glass slightly and pull it out of the groove, otherwise the door cannot be opened. There are also a few things to consider when opening and closing frameless doors.
First, pull the doorknob, wait for the glass to fall a short distance, and then open it completely. Also, when closing the door, it is best to avoid pressing the glass directly with your hands to close the door. After a long time, the contents can be easily removed. The advantages of frameless doors, most models without frameless doors are sports cars, so the appearance is very outstanding.
In addition, frameless doors are indeed very attractive. Most people think that the ** of frameless door models is relatively high, of course, this is also a fact, the most common frameless door models on the market are above 200,000, and most of them focus on high-performance sedans and medium-sized cars. For non-convertibles, the frameless design can only satisfy the feeling of the moment the door is opened.
Subsequently, when the door is closed, the frameless design is dusted again;So don't just talk about beauty and fashion. When it comes to the design of a vehicle, the most important thing is suitability and suitability. Stinky tofu cannot be eaten with red wine. Similarly, it is not appropriate for a non-convertible to have frameless doors.
The reason why Volkswagen designed frameless doors for the CC is mainly because it proves to the world that Volkswagen is capable of building beautiful cars, so the design is exaggerated in all aspects. Therefore, the frameless design is really not suitable for the vast majority of non-convertible models. Since it is not suitable, fewer models are used.
The frameless doors of the non-convertible are a bit sensational, just like the Rolls-Royce. The built-in umbrella is average, only suitable for Rolls-Royce, so this design will not be popular;Since most models on the market are not convertibles, there is no need for a frameless door design;And, this frameless design will increase.
The costs associated with this are high, and there really isn't a need for this frameless design for non-convertibles, because not all car manufacturers want to prove that they are capable of making beautiful cars!In summary, frameless doors are not easy to break, but there is a waiting period when opening and closing the doors. Wait for the glass to rise when you close the door, and wait for the glass to fall when you open the door. It will take some time to adjust.
Frameless doors