Walker Locking Mechanism for Folded Stability
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Solution Overview
Problem
Existing folding walkers lack a secure mechanism to maintain the legs in a folded state, particularly at the lower extremities, which can lead to instability during handling and transportation.
Innovation Solution
A rollator walker assembly with a locking mechanism that secures the front and back legs together when folded, positioned closer to the lower ends of the legs, using components such as plastic, aluminum, or stainless steel, and featuring C-snap connectors for a secure frictional fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the walker legs are folded for storage, then the compactness and storage capability are improved, but the stability and structural integrity deteriorate
Solution Approach 1:
The locking mechanism is designed to automatically engage and lock the walker legs in the folded position before handling or transportation occurs. The locking components are positioned to secure the legs at the lower extremities, ensuring stability is established in advance before the walker is moved or stored, thus resolving the contradiction between compact storage and structural stability.
2Stability of the object's composition
If a locking mechanism is added to secure folded legs, then the stability in folded state is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is integrated with the existing folding structure of the walker legs, combining the locking components with the leg assemblies rather than adding separate independent mechanisms. This merging approach secures the folded legs while minimizing additional complexity by utilizing the existing structural elements and folding motion to engage the locking action.
3Stability of the object's composition
If the locking mechanism is positioned at the lower ends of the legs, then the stability enhancement is improved, but the manufacturing complexity increases
Solution Approach 1:
The locking mechanism is positioned specifically at the lower ends of the legs where it provides maximum stability benefit for folded storage. This localized placement uses the natural weight distribution and structural characteristics of the leg assemblies to enhance stability with minimal additional complexity, as the locking components work with the existing leg geometry rather than requiring complex integration throughout the entire leg structure.
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 locking mechanism effectively keeps the walker legs locked together in a folded state, enhancing stability and ease of handling by ensuring the legs remain securely connected, addressing the instability issues of prior art devices.
Implementation Method 1
C-snap connectors for a secure frictional fit
Data Source
AI summary
A rollator walker assembly with locking mechanism includes a walker including a pair of front legs and a pair of back legs, each said front leg and back leg having an upper end and a lower end, the walker being switchable between an unfolded position and a folded position; and a locking mechanism adapted to secure a front leg and a back leg when the walker is in the folded position, wherein the locking mechanism is connected to the front leg at a position closer to the front leg's lower end than the front leg's upper end, and wherein the locking mechanism is connected to the back leg at a position closer to the back leg's lower end than the back leg's upper end.