Inversion Table Ankle Locking System for Safety
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Solution Overview
Problem
Inversion tables lack a reliable safety mechanism to prevent undesired rotation during use, posing a risk to users if they are not securely held on the device.
Innovation Solution
An ankle locking system that includes a tilt inversion mechanism with a locking unit and feet holding unit, allowing the mechanism to be locked in a non-reversible state when not in use and unlocked for rotation during use, ensuring the user's safety by engaging and disengaging the locking unit with a supporting stand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tilt inversion mechanism is made freely rotatable for ease of operation, then the ease of operation is improved, but the safety deteriorates due to risk of undesired rotation when user is not securely held
Solution Approach 1:
The locking unit transitions between locked and unlocked states dynamically based on whether the feet holding unit is engaged with the user's feet. When engaged, the mechanism becomes rotatable; when disengaged, it becomes non-reversible, providing adaptive control that balances safety and ease of operation.
Solution Approach 2:
The system provides feedback through the interlocking members that detect whether the feet holding unit is properly engaged with the user's feet. This feedback controls the locking mechanism to prevent rotation when not engaged, ensuring safety while allowing rotation when properly positioned.
2Reliability
If the locking unit is engaged with the supporting stand to prevent rotation for safety, then the safety is improved, but the ease of operation deteriorates due to restricted rotation
Solution Approach 1:
The locking unit is designed to dynamically change its state based on the engagement condition of the feet holding unit. When the user's feet are properly held, the locking unit disengages from the supporting stand, allowing rotation. When not engaged, it automatically locks, providing safety without restricting intended operation.
Solution Approach 2:
The locking mechanism automatically engages and disengages based on the physical condition of the feet holding unit engagement with the user's feet, eliminating the need for manual locking operations while ensuring safety and ease of operation simultaneously.
Data Source
AI summary
An inversion table includes a supporting stand having a first interlocking member, and a tilt inversion mechanism. The tilt inversion mechanism includes an inversion unit pivoted on the supporting stand, a feet holding unit, and a locking unit having a second interlocking member disposed on the inversion unit. The tilt inversion mechanism is operable relative to the supporting stand such that the feet holding unit is disengaged from the locking unit in a non-reversible state, and that the feet holding unit is engaged with the locking unit in a reversible state.