Collapsible Walker Visual Lock Indicator
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Solution Overview
Problem
Users of collapsible walkers, particularly those with limited mobility and hearing impairments, face a fall risk when transitioning from a seated to a standing position due to the lack of clear confirmation that the walker is fully locked in the upright position, as existing walkers often rely on auditory cues like a 'clicking' noise, which may not be discernible.
Innovation Solution
A visual indicator device is integrated into the walker, featuring a lock indicator cover with a window that displays different sections of a visual indicator (e.g., colored sections) to signify whether the walker is locked in the upright position, providing a clear visual confirmation of the walker's status through a window, allowing users to assess if the walker is safe to use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If walkers rely on auditory cues like a 'clicking' noise to indicate locking status, then the locking mechanism is simple, but hearing-impaired users cannot discern whether the walker is locked
Solution Approach 1:
The patent replaces the auditory indication system with a visual indication system. A visual indicator (such as a colored flag, window, or display element) is integrated into the locking mechanism to provide visual feedback about the locked/unlocked status, eliminating reliance on audible clicking sounds that hearing-impaired users cannot detect.
Solution Approach 2:
The patent employs color changes as the visual indication mechanism. Different colors (e.g., green for locked, red for unlocked) are used to clearly communicate the locking status to users, providing an intuitive and accessible visual signal that does not depend on auditory capabilities.
2Ease of operation
If the walker handlebar is lower in collapsed position to reduce reaching distance, then ease of operation improves, but user confirmation of locked position becomes more difficult
Solution Approach 1:
The patent incorporates a visual feedback mechanism that provides immediate and clear information about the walker's locking status. The visual indicator is positioned and designed to be easily observable by the user, allowing them to confirm the locked position without difficulty even when the handlebar is in the lower collapsed position.
Solution Approach 2:
The patent transitions from auditory feedback (one-dimensional sound detection) to visual feedback (two-dimensional light/color detection). This dimensional change provides richer information about the locking status and makes it easier for users to assess the walker's condition at a glance.
Data Source
AI summary
Disclosed is a collapsible walker that is movable between an upright and a collapsed position. The walker includes a visible indication that the walker is in the upright position. The indicator device includes a visual indicator affixed to the collapsible walker, wherein the visual indicator includes a first section and a second section, and a window disposed on the body. The walker is configured such that when the walker is in the upright position the first section of the visual indicator is visible via the window, and when the walker is not in the upright position at least a portion of the second section of the visual indicator is visible via the window, the visibility of at least a portion of the second section signifying that the walker is not ready for use.