Tilting Inversion Exerciser Foot Retaining Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional tilting inversion exercisers lack a locking mechanism for the ankle holder or foot retaining device, allowing feet to be disengaged inadvertently, especially when operated by children or during inversion exercises.
Innovation Solution
A rotating ankle holder with a lever and spring biasing mechanism that engages a pin with depressions in a carrier, ensuring the foot is securely retained by sliding engagement and spring biasing, preventing accidental disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple foot retaining device is used, then the device complexity is reduced, but the reliability of foot retention deteriorates due to lack of locking mechanism
Solution Approach 1:
The foot retaining device uses a dynamic locking mechanism where the lever can pivot between locked and unlocked positions. The spring biasing member provides automatic engagement with the pin in the curved channel, creating a self-locking system that adapts to the inversion exercise movements while maintaining reliable foot retention.
Solution Approach 2:
The foot retaining device is segmented into distinct functional components: the lever for pivoting motion, the spring biasing member for automatic engagement, the pin for positional locking, and the curved channel with depressions for guiding and securing. This segmentation allows each component to perform its specific function efficiently while maintaining overall system reliability.
2Ease of operation
If the foot retaining device allows easy operation, then the ease of operation is improved, but the reliability deteriorates as children may operate it inadvertently
Solution Approach 1:
The spring biasing member continuously applies a locking force to engage the pin with the curved channel or depressions, creating a preliminary anti-action against accidental disengagement. This automatic spring engagement ensures that the foot retaining device remains locked unless deliberately actuated, preventing inadvertent operation by children while maintaining ease of intentional use.
3Ease of operation
If the lever allows downward movement during inversion, then the ease of operation is improved for inversion exercises, but the reliability of foot retention deteriorates due to potential disengagement
Solution Approach 1:
The curved channel and depressions are designed to change their engagement parameters with the pin during inversion movements. As the lever pivots downward during inversion exercises, the pin slides along the curved channel and engages with different depressions, maintaining reliable foot retention throughout the range of motion required for inversion exercises.
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 solution provides secure retention of the user's feet during inversion exercises, preventing accidental disengagement and enhancing user safety by maintaining foot anchoring even when the device is inverted.
Implementation Method 1
a spring biasing member coupled between the stem and the lever for biasing the pin to engage with either of the depressions of the carrier
Implementation Method 2
the lever being movable downwardly relative to the extension and the spindle and the pin with a sliding engagement between the pin and the oblong hole of the lever
Data Source
AI summary
A tilting inversion exerciser includes a foot support attached to an extension of a table, a carrier attached to the extension, a spindle attached to the extension, and a foot retaining device includes a lever having an oblong hole for slidably engaging with the spindle, a stem slidably attached to the lever, a pin attached to the stem and slidably engaged in a curved channel of the carrier biased to engage with the carrier, and the lever is engageable with the pin for retaining the pin to the carrier and for preventing the pin from being disengaged from the carrier when the extension of the table is inverted to an up-side-down position, and for giving some security to the user while conducting the inversion exercises.