Uneven-Surface Walking Aid With Pivotable Guardrail Clamp
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Solution Overview
Problem
Existing mobility aids, such as canes and walkers, are not suitable for uneven surfaces like staircases, and conventional guardrail attachments fail to arrest falls effectively, posing a significant risk of injury, especially for elderly or minor populations.
Innovation Solution
An assistive device with grabbing members and a pivotable brace that forms a releasable clamp on guardrails, allowing for smooth movement in a first position and arresting movement in a second position to prevent falls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional guardrail attachments are used, then the device structure is simple, but the device cannot arrest falls effectively
Solution Approach 1:
The device employs a dynamic clamp mechanism with a pivotable brace that transitions between open and closed positions. The brace rotates around a pivot point to engage or disengage the grabbing members from the guardrail, enabling the device to adapt its structure dynamically based on operational needs rather than remaining static
Solution Approach 2:
The device is divided into distinct functional segments: the clamp mechanism with pivotable brace, the grabbing members (hooks), the adjustable plate, and the cuff. This segmentation allows each component to perform its specific function independently while contributing to the overall fall arrest capability
2Reliability
If the device clamps onto the guardrail to arrest falls, then fall protection is improved, but the device cannot move smoothly along the guardrail
Solution Approach 1:
The clamp mechanism dynamically switches between two states: an open position where the grabbing members can slide smoothly along the guardrail, and a closed position where they clamp firmly to arrest falls. The pivotable brace enables this dynamic transition based on operational requirements
Solution Approach 2:
The device alternates between periods of smooth movement (when the clamp is open) and periods of firm engagement (when the clamp closes to arrest a fall). This periodic action allows the device to perform both functions effectively at different times
3Adaptability or versatility
If the device is made portable and adjustable, then adaptability to different users and guardrails is improved, but the device complexity increases
Solution Approach 1:
The device is designed with universal features including an adjustable plate that can accommodate different guardrail diameters and a cuff that fits various wrist sizes. These universal design elements allow a single device to serve multiple users and environments without requiring multiple specialized components
Solution Approach 2:
The adjustable plate and pivotable brace create a dynamic structure that can adapt its configuration to different guardrail sizes and user requirements, providing versatility without requiring completely different devices for each scenario
4Reliability
If existing walking aids are used, then basic support is provided, but they cannot arrest falls or ensure proper placement on uneven surfaces
Solution Approach 1:
The device provides basic support through the cuff and handle while adding dynamic fall arrest capability through the pivotable clamp mechanism. The device maintains ease of operation by allowing natural hand placement in the cuff and handle, similar to conventional aids, while the automated clamp mechanism provides enhanced protection without requiring additional user effort
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 device provides safe and portable assistance on staircases, preventing falls and potential injuries by securely clamping onto guardrails when weight thresholds are exceeded, enhancing user independence.
Implementation Method 1
the releasable clamp is clamped onto the guardrail such that movement of the second grabbing member along the guardrail is arrested
Data Source
AI summary
A device and method for aiding persons to walk in uneven surfaces. The device including a first hook member that can form a handle to engage with the person being assisted and a second hook member that can be used to provide a secure handle to a stationary wall element such as a guardrail and allow sliding movement. The two hook members are coupled together through a brace and adjustable plate, which are coupled on a pivot point to permit for the brace to pivot and rotate around the point. The rotation allows the second hook member to engage the guardrail in either a first or second position. The first position allows for sliding movement of the hook member, while the second position causes the second hook member to form a releasable clamp with the guardrail and arrest the movement of the second hook member along the guardrail.