Walking Training Harness With Multi-Directional Pulling Units
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Solution Overview
Problem
Current walking training systems are inadequate in effectively assisting walking training, particularly for hemiplegic patients, as they lack a comprehensive and dynamic approach to simulate natural walking movements.
Innovation Solution
A walking training system comprising a harness attached to the pelvic girdle with multiple pulling units, including a first, second, and third pulling unit configured to apply forces from different directions, along with a control unit to dynamically adjust the target position in a horizontal plane, enhancing the simulation of natural walking movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two wires pull a user's waist obliquely from above using a biaxial drive unit, then the user can be supported during walking training, but the system cannot effectively simulate natural walking movements in multiple directions
Solution Approach 1:
The pulling force application system is segmented into three independent pulling units positioned at different locations (front, rear, and side). Each pulling unit independently applies force through its own wire and winding mechanism, enabling multi-directional control that simulates natural walking movements while maintaining manageable system complexity through modular design
Solution Approach 2:
The system transitions from two-dimensional oblique pulling (front-rear direction only) to three-dimensional pulling by adding a third pulling unit positioned at the side. This dimensional expansion enables the harness to be pulled from multiple directions simultaneously, effectively simulating the complex multi-directional movements of natural walking
2Productivity
If the target position is dynamically changed based on trunk movements, then the training effectiveness is improved, but the control system complexity increases
Solution Approach 1:
The control system incorporates feedback mechanisms that continuously monitor the trainee's trunk movements and dynamically adjust the target position of the harness accordingly. This feedback loop enables the system to adapt to the trainee's actual movements in real-time, improving training effectiveness while the control unit processes and responds to movement data
Solution Approach 2:
The target position is made dynamic rather than fixed, allowing it to change in real-time based on detected trunk movements. The system transitions from static position control to dynamic position control, where the target position adapts to the trainee's movement phase (swinging trunk forward, moving backward, etc.), thereby improving training effectiveness
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively assists walking training by providing a dynamic and comprehensive approach to simulate natural walking movements, improving the training efficacy for hemiplegic patients by adjusting the position of the harness in real-time based on trunk movements.
Implementation Method 1
a winding mechanism configured to wind the wire so as to apply the pulling force to the harness
Data Source
AI summary
A walking training system according to this embodiment includes a harness, at least three pulling units, and a control unit configured to control the at least three pulling units in such a way that a position of the harness in a horizontal plane becomes a target position. One of the at least three pulling units is a first pulling unit configured to apply a pulling force to the harness from front of the trainee, another one of the at least three pulling units is a second pulling unit configured to apply a pulling force to the harness from rear of the trainee, and another one of the at least three pulling units is a third pulling unit configured to apply a pulling force to the harness from a direction different from the first and second pulling units.