Chest , upper leg , lower leg , upper back , lower back , to target using the elasticized comfort belt straps provided 下手臂,大腿,小腿,背部等部份。
2.
Raiser mechanism is the key mechanism of take up , if the speedy raising up and the precise height are required , raiser mechanism should be elasticized , combining soft - combination with the goods and amortizing the wallop when the goods are stepped up to the right position 摘要托货机构是提升机的关键机构，如果要求货物高速提升和高度位置精度，托货机构必须弹性化以实现和货物的软结合，缓冲货物提升到位时的冲击力。
3.
Through the experimental research , we think : the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam , however , if use elasticized capacity to solve blending technological problem . adjust the breed of fiber silk , extend its diameter , its paving capacity is still worth exploring , asphalt - rubber macadam structure lager have good deformed - become capacity and crazed - resistance capacity , small gap rate . good water - resistance capacity , good hot - stability and simple construction technology . therefore . pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue . and is the good structural measure of preventing half - rigidity grass - roots unit shrink - rift reflecting . pave a thin layer of pitch rubber spall between asphalt - type pavement layer and half - rigidity basic level , although the cost of building is higher than paving togongbu in the middle , the construction technology , crazing - resistance and water - resistance are better than togongbu , not only could reduce greatly the reflex of half - rigidity grass - roots unit material , long then the use lifespan of pavement , but also it is possible to reduce suitably the thickness of asphalt mixture layer , though the cast of building in the early days becomes more , in the long - term opinion , it have fully important technological and economical significance 通过试验研究认为：玻璃纤维沥青碎石的技术性能不如沥青碎石好，但路用弹性性能较好，如能解决拌和工艺问题，调整纤维丝的品种，增大其直径，其路用性能仍值得探讨，沥青橡胶碎石结构层具有变形性能和抗裂性能良好，空隙率小，防水性能好，热稳定性较好，施工工艺简单的特点，因此，沥青橡胶碎石是二级及二级以下公路因疲劳而开裂的沥青路面的良好罩面材料，也是防止半刚性基层收缩裂缝反射的良好结构措施，在沥青类路面面层和半刚性基层之间夹铺沥青橡胶碎石薄层，虽然造价比夹铺土工布高，但其施工工艺，抗裂性能和防水性能均优于土工布，不仅可以大大减少半刚性基层材料的反射裂缝，延长路面使用寿命，而且可能适当减薄沥青混合料面层的厚度，虽然初期造价有所增加，从长远来看，具有十分重要的技术和经济意义。
