Improvements made to reverser mechanism applied to the rear axle of wheelchair

Abstract

A reverser mechanism particularly developed to provide better posture to the wheelchair user and a more efficient propulsion during a forward movement (wheelchair touch) by means of the application of a traction force to the handrims, which is contrary to the rotating movement of the rear wheels (movement contrary to the propulsion), allowing the wheelchair user to adopt a more comfortable and straight position during the effort made to move the wheelchair forward.

Description

technical field [0001] The present invention describes improvements to reverser mechanisms applied to the rear axle of a wheelchair, which were developed specifically to facilitate postural adjustment in the wheelchair user by applying a force opposing the rotational motion of the wheels, thereby allowing the wheelchair user to Adopt a more comfortable (proper) and upright posture during vigorous forward and backward movements. Background technique [0002] It is well known that wheelchairs are classified according to their mode of propulsion, i.e. manual or motorized, but motorized wheelchairs generally have higher acquisition and maintenance costs, while manually propelled wheelchairs require human effort to move, that is, they are operated by an assisting person Driven by applying or by the user's own artificial propulsion on the hand ring, which is a circular frame mounted on the outside of the rear wheel. [0003] However, it is well known that the manipulation and rot...

AI Technical Summary

Problems solved by technology

This movement results in incorrect posture as the user needs to push the torso forward and lift the elbows to create a downward, forward force

[0006] This constant exertion leads to poor spinal posture, deformed muscles, digestive problems, motor skill deficits, reduced lung capacity, pressure sores and pain, which in turn is directly reflected in the wheelchair user's psycho-social, quality of life negative change

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