【正文】 for the safety seat is only the awareness of regulatory requirements remain in the country on, hindered the development of seat design. China39。s safety 本科生畢業(yè)設(shè)計(jì)（論文）34standards for seat is standardsetting reference to foreign seats, but the content is relatively simple and low demands. Static strength to the seat assembly as an example, the requirements of our standard seat assembly can withstand 20 times the gravity of the load assembly, and German standards require others to bear 24 times or more of the assembly of gravity load. Impacts against the seat when the security has been carried out abroad, research, and some of our R amp。 D enterprise as a result of inadequate attention to the seat, has yet to carry out specific research, not only to the seat of the security risks, and constraints the development of the seat. With the modern car design to security, the pursuit of environmental protection and energy conservation, while ensuring the safety of car seats on the basis of the structural design of the seat abroad have also begun to lightweight, lowcost development, a growing number of new manufacturing technology and the start of lightweight material widely used in modern car seat design, therefore, our study of the safety seat technology in urgent need of a large number of inputs, thereby reducing the gap with the advanced level, developed for the status quo of China39。s production safety, lightweight , lowcost seats.At the same time, as the modern car design to security, the pursuit of environmental protection and energy saving in foreign countries, in ensuring the safety of car seats on the basis of the structural design of seats have also begun to lightweight, lowcost development, more number of new manufacturing technology and the beginning of wider use of lightweight materials and modern design of automobile seats. Comparative study abroad, the situation of car seats, due to a late start in China39。s automobile industry, the design of seat work backward. Strictly speaking, the seat of our study was from the 20th century, the beginning of the eighties. After almost 20 years, currently chairs a number of manufacturers will be able to model a lot of domestic production support. With the advantages of joint ventures, domestic producers have a number of seats in part of the seat design and production technology, but still rely on foreign technology strength, selfdesign is still parked in the left at the starting stage. Caused by the design of China39。s car seat behind There are many reasons. Behind the design is the design of hindering the development of China39。s seat of an important factor. At present, many domestic manufacturers of the seats still in use Biography Serial production of the EC, that is, the design kind of processing test to improve the design of a single cycle. Led to the design of high cost and long development cycle. The event of failure of product quality, usually taken to increase the diameter of the blind or the thickness of the wall approach, rather than from the perspective of optimizing the 本科生畢業(yè)設(shè)計(jì)（論文）35overall structure to modify the design. Although this approach enables the weak part of the performance of seat change, it often will seat strength and stiffness of large margin, resulting in unnecessary waste of materials,Strength to the seat assembly as an example, the requirements of our standard seat assembly can withstand 20 times the gravity of the load assembly, the German standards are required to withstand 60 times the load of gravity. The impact of China39。s seat on the security of a full understanding of the factors not only in accordance with test problems in reference to foreign countries to carry out similar improvements in the design of the seat. To sum up, pared with foreign countries, our study of the safety seat is still in its infancy stage, the urgent need for a large number of technical inputs, research and development, the status quo for the seat of China39。s production safety practices. chair electric chair seat is in reality the structure of the various regulation change by the manual manipulation of the manipulation of electric chair. Number of seats in the arrangement of electric motor, motor drive transmission mechanism, so that the corresponding parts of the seat have a displacement, before and after the realization of the location of the seat, up and down, tilt adjustment. Electric seat button instead of using the handle, which greatly improved the portability and convenience, the increasingly widespread application.2. Suspension seat hanging chair is created between the seat and floor of a suspension, seat suspension for vibration mitigation. Suspension by the buffer ponents, damping ponents and positioning ponents. Buffer ponents have leaf springs and coil spring and so on. seats electric chair and puter bination of the memory function of the seat. Achieved by puter feedback control of the seat. When the crew will take a good seat to adjust the location of storage into the puter, when the reuse, it will automatically adjust to the needs of the state without having to readjust. seat Lightweight seat to seat in addition to some traditional ponents, the use of the backlog of forming highstrength aluminum pieces and the pieces just to ensure that the seat of the light weight and structural robustness. Seat surface open mesh material, the place of traditional polyurethane foam, decorative objects and suspension parts. Lightweight seat in the 10kg weight can be controlled within. Using lightweight seat, the car will not only save space to install other functional parts, and their safety is also superior to the traditional seats, and improved 本科生畢業(yè)設(shè)計(jì)（論文）36vehicle fuel economy. seats suspension seats suspended the use of magic devices, in addition to the weight of its own seats, but