Diseño y construcción de una silla bipedestadora para personas con discapacidades en sus extremidades inferiores.

Abstract

The objective of this research is the design and construction of a standing chair for people with disabilities in their lower extremities, since in Ecuador, according to the National Council for Disabilities (CONADIS), there is 25% of people with disabilities in the lower extremities, for what people spend most of the time in a sitting position this is harmful to health, since it causes a series of problems such as bedsores (sores), poor blood circulation, gradual aging, among others, which is why They resort to the expensive acquisition of imported standing chairs, in view of this the present work, contributed with a national and low-cost design, so to achieve this, sketches were first made to have a clear idea of the operation and suitable model, Once this was recognized, all the components were digitized using SolidWorks software, which were validated in software ANSYS, subsequently the analysis of force, position, velocity and acceleration was performed in the ADAMS software, from which it was determined that a minimum force of 1475.88N is necessary to lift the user, seat, back and headrest assembly, therefore Based on this force, the mechanical electric jack was selected, once this stage was finished, the chair was manufactured by cutting and welding the tubes, the quality of the bodywork welding was evaluated by the penetrating ink test, same as yielded an acceptable result in the forty-one laces, once this was validated, the final step was to assemble all the accessories such as brakes, seat belts and upholstery, until finally obtaining the complete standing chair, which when subjected to multiple functional tests I present excellent operating results.