Development of a Stand Alone Wearable Power Assist Suit

一种独立的可穿戴动力辅助服已经开发出来，它给护士提供了额外的肌肉，他们需要举起病人，避免背部受伤。为了使肌肉硬度传感系统更加稳定，研制了将传感器置于网状带的一体化设计传感器，提高了肌肉硬度传感器的传感特性。在机械和计算机系统方面进行了改进。采用皮带对腰臀装置的连杆机构进行了粘接。腿单元外旋活动角度增加。计算机和驱动单元分布在每个执行器上。实验证明，新型宇航服的每个单元直接将辅助扭矩传递到各个关节，通过将宇航服穿在身上，可以将重量提升一半或更少的肌肉力量，即肌肉力量变成两倍或更多。验证了新研制的腕部装置和改进后的腰髋部装置的有效性。为了证明这套衣服的实用性，护理手术由穿着这套衣服的女性进行，50公斤体重的女性可以举起90公斤体重的男性。这套宇航服可以运行20分钟，而不需要给连接在两条腿上的镍镉电池充电。

A stand alone wearable power assisting suit has been developed, which gives nurses the extra muscle they need to lift their patients and avoid back injuries. To stabilize the muscle hardness sensing system more, the sensor of the all-in-one design that built the sensor into meshed belt was developed and the sensing characteristic of the muscle sensor were improved. The suit was improved in mechanism and computer system. Link mechanism of waist and hip unit was slimed by using belts. The movable angle for external rotation of leg unit was increased. The computer and driver units were distributed on each actuator.It was proved that the each unit of the new suit transmitted assisting torque directly to each joint, and by wearing the suit to the body the weight could be lifted by half or less muscular power, i.e., muscular power became twice or more. The validity of the newly developed wrist unit and the improved waist and hip unit was proved. In order to demonstrate the practicability of the suit, the care operation was performed by women wearing the suit, and the woman of 50 Kg in weight could lift the man of 90 Kg in weight. The suit could run 20 minutes without charging the Ni-Cd batteries attached to the both upper legs.