1、 附录 CAR SEAT OF THE STATUS QUO AND DEVELOPMENT TREND Study abroad is accompanied by the seat of the birth of the car and started going through the hundred-year history, the development of a very mature, with the seat-related safety standards and regulations have been perfect. As early as age 60 in t
2、he 20th century, many foreign countries have developed national or industry on car seat safety performance to ensure that the various regulations and standards, such as the United States to enforce laws and regulations of the Federal Motor Vehicle Safety (FMVSS) and industrial and commercial equipme
3、nt manufacturers association (BIFMA) and other non-mandatory laws and regulations, and developed a wide range of special test equipment. Chinas seat safety standards and regulations that refer to foreign laws and regulations drawn up. Comparative study abroad, the situation of car seats, due to a la
4、te start in Chinas 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. Experienced 20 years of development, currently has a lot of seat manufacturers. With the advantages of joint ventures, some of
5、them with the design and production technology, but mainly rely on foreign forces, their own design and R & D to remain at the early stage. Behind the design approach is hindered research and development of Chinas seat of an important factor. At present, many domestic manufacturers of the seats is s
6、till the linkage of traditional modes of production, resulting in the design of high cost and long development cycle. Once the quality of products and unqualified, the blind tend to take greater diameter, wall thickness or the thickness of the solution, rather than from the perspective of improving
7、the overall structure to modify the design. Although this approach enables the weak part of the performance of the seat has changed, but the strength and stiffness will seat large margin, resulting in unnecessary waste of materials, potentially increased the cost of the product design meeting also r
8、eflected backward chair design means supporting research. There are still a lot of seat design and the manufacturer does not have a high standard of technology supporting the use of computer-aided design and analysis, can only follow the traditional design methods and processes, but also for the saf
9、ety seat is only the awareness of regulatory requirements remain in the country on, hindered the development of seat design. Chinas safety standards for seat is standard-setting reference to foreign seats, but the content is relatively simple and low demands. Static strength to the seat assembly as
10、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
11、 of our R & 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 conser
12、vation, while ensuring the safety of car seats on the basis of the structural design of the seat abroad have also begun to lightweight, low-cost development, a growing number of new manufacturing technology and the start of light-weight material widely used in modern car seat design, therefore, our
13、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 Chinas production safety, light-weight , low-cost seats. At the same time, as the modern car design to security, the pursuit of environmen
14、tal 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, low-cost development, more number of new manufacturing technology and the beginning of wider use of lightweight materials and mode
15、rn design of automobile seats. Comparative study abroad, the situation of car seats, due to a late start in Chinas 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, currentl
16、y 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, self-design is still pa
17、rked in the left at the starting stage. Caused by the design of Chinas car seat behind There are many reasons. Behind the design is the design of hindering the development of Chinas seat of an important factor. At present, many domestic manufacturers of the seats still in use Biography Serial produc
18、tion 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, ra
19、ther than from the perspective of optimizing the overall 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 assemb
20、ly 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 Chinas seat on the security of a full understanding of the factors not only in accordan
21、ce with test problems in reference to foreign countries to carry out similar improvements in the design of the seat. To sum up, compared 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 developmen
22、t, the status quo for the seat of Chinas production safety practices. 1.Electric 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 driv
23、e 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 increas
24、ingly 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 components, damping components and positioning components. Buffer components have leaf springs and coil spring an
25、d so on. 3.Memory seats - electric chair and computer combination of the memory function of the seat. Achieved by computer feedback control of the seat. When the crew will take a good seat to adjust the location of storage into the computer, when the re-use, it will automatically adjust to the needs
26、 of the state without having to re-adjust. 4.Lightweight seat - Lightweight seat to seat in addition to some traditional components, the use of the backlog of forming high-strength 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
