I remember reading a foreign report before, a woman sitting in the back seat of a car to sleep, a car accident due to the driver feeling tired and dozing, although the lady is sitting in the back seat, and she is sitting The area suffered little damage from the impact, but the unfortunate lady died. What caused the woman to pass away? At the time of the above situation, the lady was sitting diagonally, which has a lot to do with her life. At that time, the vehicle she was riding hit another car. The woman's body instantly slipped forward and left the seat. This momentary movement caused her head to form a backward position and caused the neck to break. From the above situation, you can understand how important an ergonomic chair is, which is why most cars are equipped with headrests. In recent years, there has been another new trend in the design of the seat, which is to add ASPS (Anti-Submarining Protection System) anti-submarine slip protection technology to the car seat. This article refers to the address: http:// The main technology of the ASPS-anti-submersible protection system is to design the upper part of the seat cushion to have a lower shape with a higher front end and a lower end. The main purpose of this design is to prevent the occupants in the vehicle from being subjected to frontal impact or emergency braking. When the body or pelvis slides forward from under the seat belt, causing more damage to the foot, chest or face hitting the steering wheel or other interior, as well as reducing the damage to the abdomen, pelvis and spine. In addition to the design of the ASPS-anti-submersible protection system, the interior parts are modified to use airbags to prevent the occupant from sliding forward. This airbag design is to install a horizontal airbag in the front end of the seat cushion. When the vehicle collides, the airbag computer will activate the seat belt instant force booster after the impact. If the impact force is not large, only the first segment will be started. The small air bag prevents the occupant from sliding forward. If the impact force is large, the second seat belt instant force enhancer and the second large air bag are activated to securely fix the passenger on the seat to reduce the body during the impact. The damage suffered. It should be emphasized that ASPS must work with safety belts and safety auxiliary airbags to achieve the best results. If you do not wear seat belts, ASPS can not play its due role. Woofer Speaker,Stage Woofer Speaker,Bass Woofer Speaker,Sub Woofer Loudspeaker Guangzhou Yuehang Audio Technology Co., Ltd , https://www.yhspeakers.com