Walking Aid Tip with Flexing Ribs for Stability
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Solution Overview
Problem
Traditional walking aid tips are prone to cracking and wear, offer insufficient support on uneven surfaces, and require excessive effort to navigate loose surfaces due to their small surface area and lack of stability in multiple directions.
Innovation Solution
A tip with a base member, shaft, and radially extending ribs that flex under compressive force, providing stability in various directions and on different surfaces, eliminating the need for set screws and enhancing durability through a contoured intersection and flexible materials like rubber or polyurethane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional solid rubber tips with flat or rounded bases are used, then they provide basic support during gait, but they crack and wear down frequently requiring regular replacement
Solution Approach 1:
The tip is divided into multiple functional components: a base member with ribs, a shaft with bore, and an attachment mechanism. This segmentation allows each component to be optimized independently - the ribs provide structural integrity and wear resistance while the attachment mechanism ensures secure mounting, thereby improving overall durability and service life
Solution Approach 2:
The tip employs composite construction combining rigid materials (metal or rigid plastic) for the shaft and bore structures with flexible materials (rubber or polyurethane) for the base member and ribs. This composite approach provides both the durability needed for frequent use and the flexibility to prevent cracking and wear
2Stability of the object's composition
If tips with wider base are used to provide more support, then stability improves, but they become difficult to attach to the end of mobility medical devices
Solution Approach 1:
The tip is divided into a base member with ribs and a separate shaft with bore, allowing the wide stable base to be attached to the shaft through a standardized interface. This segmentation enables the base to provide maximum stability while the attachment mechanism ensures easy and secure mounting to mobility devices
Solution Approach 2:
The shaft with bore serves multiple functions: it provides the attachment interface for mounting to mobility devices, acts as a structural connector, and allows for the insertion of the base member. This multi-functionality simplifies the attachment process while maintaining stability
3Ease of manufacture
If tips with small surface area are used, then they are easier to attach and less bulky, but they sink through loose surfaces requiring excessive effort to walk across
Solution Approach 1:
The tip separates the attachment function (shaft with bore) from the surface contact function (base member with ribs). This allows the base to have a large surface area for stability on loose surfaces while the shaft provides a standardized attachment interface that remains compact and easy to mount
Solution Approach 2:
The ribs extend vertically from the base member, adding a third dimension to the surface contact area. This vertical extension creates multiple contact points that distribute load across loose surfaces, improving ease of movement without increasing the horizontal footprint or complicating attachment
4Stability of the object's composition
If tips provide support for wider range of gait, then stability during movement improves, but they become bulky
Solution Approach 1:
The tip divides the support function across multiple ribs distributed around the base perimeter rather than using a single large bulky structure. This segmentation provides wide-range gait support through multiple contact points while maintaining a compact overall volume
Solution Approach 2:
The base member features a rounded outer surface with ribs that curve outward, creating a compact spherical-like geometry. This curvature allows the ribs to flex and adapt to gait movements in multiple directions while maintaining a compact form factor that is not bulky
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 tip offers improved stability and durability, allowing easier movement on various surfaces, including loose ones, by distributing force effectively and maintaining support throughout the user's gait without the need for frequent replacements.
Implementation Method 1
the ribs are configured to flex in response to a downward compressive force on the shaft such that the tip is able to provide stability in a plurality of different directions and on a plurality of different surfaces
Data Source
AI summary
There is provided a tip configured for removable attachment to a walking aid device. The tip includes a base member, a shaft, and a plurality of spaced apart ribs. The shaft includes a bore therein extending upwards from a central portion of an inner surface of the base member to accept a distal end of a walking aid device. The plurality of spaced apart ribs extends from an outer rim of the base member to the shaft.