Development of a Stand Alone Wearable Power Assist Suit

一种独立的可穿戴助力服已经开发出来，它为护士提供了抬起病人并避免背部受伤所需的额外肌肉。为了进一步稳定肌肉硬度传感系统，研制了将传感器嵌入网状带的一体式传感器，提高了肌肉传感器的传感特性。这套西服在机械和计算机系统上进行了改进。腰部和臀部单元的连杆机构采用皮带打滑。增加了腿部单元外旋的活动角度。计算机和驱动单元分布在每个执行器上，实践证明，新西服的每个单元直接将助力矩传递到每个关节，穿在身上可以将重量提升一半或更少的肌力，即肌力增加一倍或更多。验证了新研制的腕部单元和改进的腰臀单元的有效性。为了展示西装的实用性，护理手术由穿着西装的女子进行，体重50公斤的女子可以举起体重90公斤的男子。这套衣服可以在不给连接在两条大腿上的镍镉电池充电的情况下运行20分钟。

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.