FRONT WINDSHIELD GLASS UPPER 2137-5306010-01W-3

The front windshield of a car is an important component located at the front of the vehicle, which is used to block sand, rain and the oncoming wind to ensure the safety and good visibility for passengers. It is mainly made of laminated tempered glass or laminated regional tempered glass. These materials have excellent impact resistance and can protect the occupants inside the vehicle in case of a collision. Moreover, when regional tempered glass breaks, it can maintain a certain clarity to ensure the driver's view. Besides, it also has functions such as being aesthetically pleasing and blocking ultraviolet rays. It is an indispensable key part of a car.

From the perspective of development history, in the early days, the windshields of cars were mostly designed in a vertical manner. With the advancement of technology and the increase in the pursuit of performance, the windshields of small cars gradually changed to an inclined installation. This change was of great significance as it effectively reduced the air resistance of the vehicle during travel and thereby lowered fuel consumption. However, for large trucks, due to their larger weight and other factors, the windshields are still mostly in a vertical position to this day.

In terms of material, modern windshields are constantly being innovated. Laminated tempered glass is composed of two layers of glass with a PVB film sandwiched in between. When subjected to external force impact, the PVB film will bond the broken glass fragments together, reducing the harm to the occupants inside the vehicle. Laminated area tempered glass is more distinctive. It undergoes tempering treatment in specific areas, not only enhancing the overall strength but also allowing the crack to maintain a certain clarity when it breaks, thus minimizing the impact on the driver's field of vision and significantly improving driving safety.

Nowadays, the windshields of cars are generally of a single large curved surface design. This design is not only aesthetically pleasing but also further optimizes the aerodynamic performance. At the same time, many advanced front windshields also have a UV protection coating, like providing a protective umbrella for the driver's eyes, effectively reducing the damage caused by UV rays to the eyes. Moreover, when installing window films on the front windshields, car owners must follow the standard of having a transmittance greater than 70% to ensure good visibility.

In conclusion, the design and material of car windshields have been constantly improving. They play an irreplaceable role in ensuring safety, enhancing the driving experience, and optimizing the appearance. They are a crucial part of the numerous components of a car and drive the automotive industry forward continuously.

The reason why the windscreen of the bus is installed vertically is that the driver's seat is higher. Installing the windscreen vertically will not interfere with the driver's observation of the road conditions.

The detailed analysis is as follows:

Installation principle: The windshield of a car functions like a flat mirror. If installed vertically, the image formed would be directly in front, interfering with the driver's observation of the road conditions. However, for trucks, since the driver's seat is higher, even though the image formed by the flat mirror is in front, the driver can look down to observe the road conditions without being disturbed.

Driving difficulty: In fact, the glass of a truck is not completely vertical; it is slightly inclined. If the tilt of the windshield of a truck is too large, then the vehicle body will be longer, and the driving difficulty will increase.