Design of Wearable Chair

MECHANICAL ENGINEERING

We have read the medical news about exoskeletons developed to empower people to walk and leap but there is another pathway for the application of exoskeletons, this time being a wearable device that can help working people in settings such as factories experience better comfort. Some workers have tasks that make it difficult for them to avoid the stress and fatigue of having to stand, bend, and stoop for long periods, assuming postures that may cause physical, muscle-related problems. The creators say the Chair solution is here, and they are referring to their product, the Wearable Chair. In this instance, researchers are promoting a wearable device that can help people at work maintain optimal posture. This is a wearable chair that could be worn by production-line workers and old age people the wearable chair idea is to relieve the stress of tasks that can cause such problems and pain. Unhealthy postures also lead to fatigue. Whether the difficulty is pain or fatigue or both, the worker's issue becomes a productivity issue, which is not beneficial to employers. The product as a wearable ergonomic leg device; or a leg exoskeleton; or a powered, lightweight and energy-efficient lower limb posture-support device. Millions of workers have to stand all day, which strains the back and the lowerlimbs. By creating a new sitting device, one can improve comfort and reduce theforces acting on the knee. Observation of the human knee shows that there is no single center of rotation as there is in a hinge joint. Rotation occurs together with translation. Therefore, ajoint is needed which follows the natural trajectory of the knee. Four-bar linkages follow a predetermined trajectory and or a great rigidity butare not able to cope with differences between users. Therefore, three adjustablejoints are constructed and compared to each other.

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