Rated strength of Belt component: Belt Webbing component installed on single seat, including Webbing, release device, other parts, tensioned according to the specified test requirements, can withstand a load of at least 6672 N on the Belt shaft. If the seat belt assembly is used on the two-seat seat, the rated strength shall be at least 13344 N. The rated strength of the seat belt assembly is marked on each half of the belt of each pair of seat belt assembly. 2) Seat belt release device: The seat belt assembly is adjustable and has an easy to operate quick release device. After Belt Webbing bears at least equal to the specified tensile load, Belt Webbing users can easily open the release device. 3) The characteristics of the ribbon and others: the standard width of the belt ribbon is 51 mm, taking into account all the necessary production processes such as textile, dyeing, anti-gas, flame retardant and wear treatment, the ribbon width can be controlled in (49±2) mm. Grooves or holes in metal parts connecting the webbing shall not be less than 51 mm. The rated breaking strength of the ribbon is at least 50% higher than the strength specified by the component, and its flame retardant performance meets the requirements specified in order to prevent the strength reduction or loss caused by climate, corrosion, acute Angle wear and other reasons during use.
Another reason for the use of seat belts is severe turbulence caused by complex weather conditions in flat flight. In the atmosphere, complex weather changes. Swirling air currents often travel at altitudes of up to 10,000 meters, the altitude at which jumbo jets fly. Before each voyage, the crew goes to the airport weather room to check the weather forecast along the route. However, the weather can be unpredictable. Wide-body aircraft flying at higher altitudes, often clear skies, the naked eye is not easy to see the arrival of turbulence. It is this kind of turbulence in the clear air that makes it difficult for drivers to guard against it. These streams have a certain velocity, which, combined with the cruising speed of an airliner, makes their relative velocity even greater. Strong turbulence can cause aircraft to rise at speeds of 10 to 15 meters per second, or it can cause aircraft to descend at even greater speeds, disrupting normal flight and causing violent turbulence. It's like when we fly a kite, we're caught in a whirlwind and we can't fly a kite. When a passenger plane unexpectedly enters such a turbulent zone, there are always varying degrees of problems, ranging from slight vibration to moderate turbulence. In severe cases, the strong turbulence of the up-and-down turbulence can throw passengers without seat belts to the roof and then onto seats or the floor, the danger can be imagined.
Post time: Jun-06-2022