Seated Lower Limb Exercise Device with Caster Movement Restriction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lower limb exercise devices face issues where the user's chair shifts due to foot pedaling reaction forces, disrupting effective pedaling exercises.
Innovation Solution
A lower limb exercise device equipped with a restriction mechanism that limits the movement of chair casters within a predefined range, ensuring stable positioning during exercises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user performs pedaling exercise on a chair, then the exercise can be performed portably and conveniently, but the chair moves due to reaction force causing ineffective exercise
Solution Approach 1:
The restriction mechanism applies a preliminary counteracting force to prevent the chair from moving during pedaling exercise. The contact part is positioned to restrict caster movement before the reaction force can cause significant displacement, thereby maintaining exercise effectiveness while preserving portability
Solution Approach 2:
The restriction mechanism acts as an intermediary between the chair and the floor. It selectively restricts caster movement in the exercise direction while allowing movement in other directions, enabling the user to maintain a stable position during pedaling without completely fixing the chair
2Stability of the object's composition
If the restriction mechanism completely fixes the chair, then position stability is improved, but portability and ease of setup are reduced
Solution Approach 1:
The restriction mechanism applies localization by selectively restricting caster movement only in the direction that affects exercise effectiveness. The contact part restricts movement along the exercise axis while allowing lateral and longitudinal adjustments, maintaining both stability during exercise and portability for setup and storage
Data Source
AI summary
A lower limb exercise device that enables a user to perform a lower limb exercise effectively is achieved. A lower limb exercise device according to one embodiment of the present disclosure enables a user to perform a lower limb exercise while the user is seated on a chair. The lower limb exercise device includes exercise equipment for the user to perform the lower limb exercise, and a restriction mechanism configured to restrict movement of at least one caster of the chair from a reference arrangement range of the caster during the lower limb exercise.