Walking Assistant Harness Connecting Position Adjustment
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Solution Overview
Problem
Existing walking assistant harnesses with fixed thigh fixation belts can interfere with the opposite leg, particularly in trainees with smaller builds, due to a lack of adjustable connection points, leading to improper fitting and potential interference.
Innovation Solution
Incorporating a connecting position adjustment mechanism in the thigh fixation belt that allows for adjustment along the right-left direction, using multiple holes, screws, or hooks to ensure the thigh frame does not interfere with the opposite leg, accommodating different body builds by selecting appropriate engagement points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the thigh fixation belt is fixed at a predetermined position in the thigh frame, then the structure is simple and easy to manufacture, but the thigh frame may interfere with the opposite leg in trainees with small builds
Solution Approach 1:
The connection portion is divided into multiple discrete connecting holes positioned at different locations along the thigh frame. This segmentation allows the thigh fixation belt to be connected at different positions depending on the trainee's body size, thereby preventing interference with the opposite leg while maintaining structural simplicity
Solution Approach 2:
The connection position between the thigh fixation belt and thigh frame is made adjustable rather than fixed. The multiple connecting holes provide dynamic positioning options that can be selected based on the trainee's build, allowing the system to adapt to different body sizes while keeping the overall structure simple
2Device complexity
If the thigh fixation belt is fixed at the center of the width of the thigh frame, then the structure is simple, but it causes interference with the opposite leg in trainees with small builds
Solution Approach 1:
The single center connection point is segmented into multiple connecting holes distributed at different positions on the thigh frame. This allows selection of appropriate connection positions to avoid interference with the opposite leg while maintaining relatively simple device structure
Solution Approach 2:
Different regions of the thigh frame are provided with connecting holes at specific locations optimized for different body types. This local quality approach ensures that the connection can be made at positions that prevent interference with the opposite leg for small-built trainees while keeping the overall device complexity low
3Adaptability or versatility
If multiple connecting holes are provided in the thigh frame for position adjustment, then adaptability to different builds is improved, but the device complexity increases
Solution Approach 1:
The connection system is segmented into multiple discrete holes rather than a continuous or complex adjustable mechanism. This segmentation provides adaptability for different builds while keeping the device complexity relatively low through simple geometric features
Solution Approach 2:
The connection position parameter can be changed by selecting different connecting holes rather than through complex mechanical adjustments. This allows adaptability to different trainee builds while maintaining simple device structure through discrete position options
Data Source
AI summary
A walking assistant harness attached to a leg of a trainee so as to assist walking of the trainee includes: a thigh frame placed along a front side or a rear side of a thigh of the trainee; and a thigh fixation belt connected to the thigh frame at a connection portion, so as to fix the thigh of the trainee to the thigh frame, and the connection portion includes a connecting position adjustment mechanism configured to adjust a connecting position with the thigh fixation belt in a right-left direction of the trainee.