The invention provides a self-adaptive subarea negative Poisson's ratio safety belt conforming to human body biomechanics, the self-adaptive subarea negative Poisson's ratio safety belt comprises a strengthening area, a basic area and a connecting belt for connecting and fixing the strengthening area and the basic area, the strengthening area and the basic area are both formed by arranging negative Poisson's ratio structures in an array mode, and the Poisson's ratio of the strengthening area is slightly small; the safety belt is tightened through the pre-tightening mechanism in the using process, according to the scheme, the safety belt is partitioned, the chest stress is the largest, the chest stress is set to be a strengthening area, a larger stress area is provided for the chest of a passenger through the pulling and expanding characteristic of the negative Poisson's ratio structure, and tightening injuries are reduced. The basin cavity is arranged to be a basic area which can be slightly widened when being pulled, friction is increased, meanwhile, the possibility that a driver and passengers slide downwards is reduced, and the abdomen is prevented from being tightened. The pre-tightening mechanism can tighten the safety belt in advance before collision, the tightening force is adjusted according to the collision speed, and a driver and passengers are better protected.
本发明提供一种符合人体生物力学的自适应分区负泊松比安全带,包括强化区、基础区以及连接固定两者的连接带,强化区和基础区均是由负泊松比结构以阵列式排布构成,强化区的泊松比略小;安全带在使用过程中通过预收紧机构进行收紧操作,该方案把安全带进行分区:胸腔受力最大,设置为强化区,利用负泊松比结构的“拉胀”特性对乘员的胸腔提供更大的受力面积,减少勒伤。盆腔处设置为基础区,受到拉力时能够稍微变宽,增大摩擦的同时减小驾乘人员向下滑脱的可能性,避免腹部受勒。预收紧机构能够在碰撞前提前收紧安全带,根据碰撞速度调节收紧力的大小,更好的保护驾乘人员。
Self-adaptive partitioned negative poisson ratio safety belt conforming to human body biomechanics
一种符合人体生物力学的自适应分区负泊松比安全带
2022-12-27
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Automobile safety belt self-adaptive to human body comfort degree and using method thereof
European Patent Office | 2022
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