<noscript id="xydlb"></noscript>
  • <ins id="xydlb"><acronym id="xydlb"></acronym></ins>
        <sup id="xydlb"><small id="xydlb"></small></sup>

          Chuang Ji industrial park, No. 49, Zi Heng West Road, Pingzi New District, Pingshan New District, Shenzhen
          ?

          Ergonomics definition

          2018-05-11 handler 3269

          圖片

          Ergonomics is a factor in the study of human anatomy, physiology and psychology in a certain working environment. It studies the interaction between human and machine and the environment, and studies on how to consider the problems of work efficiency, human health, safety and comfort during work, life and vacation.

            

          圖片


          Standard - seat high standard

          Seat height standard: to avoid excessive pressure on the thigh, the height of the front seat to the ground or foot should not be greater than the distance from the foot to the thigh bend. According to the study, the suitable seat height should be equal to the heel of the leg plus the heel of 25-35mm and the rest of the 10-20mm, that is, the seat height = the leg plus the high and the heel thick - the proper space.

          The national standard stipulates that the chair height is: the seat height is =400~440mm, the seat height 400~440mm is only applicable to the adult standard. Therefore, the Institute of Ergonomics application is the research object of the height / height of 4~17 years old children in China. After a large number of data research, investigation and comparison, it is concluded that the most suitable for China's children's seat is in the 270~520mm. To meet the needs of 4~17 years old children. )

          圖片

          Standard - seat high standard

          Seat height standard: to avoid excessive pressure on the thigh, the height of the front seat to the ground or foot should not be greater than the distance from the foot to the thigh bend. According to the study, the suitable seat height should be equal to the heel of the leg plus the heel of 25-35mm and the rest of the 10-20mm, that is, the seat height = the leg plus the high and the heel thick - the proper space.

          The national standard stipulates that the chair height is: the seat height is =400~440mm, the seat height 400~440mm is only applicable to the adult standard. Therefore, the Institute of Ergonomics application is the research object of the height / height of 4~17 years old children in China. After a large number of data research, investigation and comparison, it is concluded that the most suitable for China's children's seat is in the 270~520mm. To meet the needs of 4~17 years old children. )


          圖片

          Pay attention to the high quality life and pay attention to the GAVEE family.

          "Happy work, love yourself" gavee computer chair

          GAVEE brand guarantee: 1, 1 years warranty. The 2 and 90 day premium. There is no reason to return the goods for 3 or 7 days. 4, life after sale detailed see:

          Official Tmall flagship store: https://gavee.tmall.cOm


          97共享免费视频在线,亚洲视频在线观看C,久久黄色一级带,国产一级a日本,亚洲欧美日本在线综合,91视频网
          <noscript id="xydlb"></noscript>
        1. <ins id="xydlb"><acronym id="xydlb"></acronym></ins>
              <sup id="xydlb"><small id="xydlb"></small></sup>