Removable Heel Engagement Mechanism for Stable Anchorage
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Solution Overview
Problem
Current removable heel footwear solutions lack optimal engagement stability, are difficult for users without manual skills to use, and do not ensure long-term wearproof anchorage, leading to maintenance and replacement needs.
Innovation Solution
A device with a first engagement plate and a second engagement plate equipped with hooking seats, guide slots, and a spring mechanism, allowing for stable anchorage and easy removal of the removable heel through a bayonet-type hooking system and guide slots, ensuring secure attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional engagement devices are used to attach the heel to the shoe sole, then the heel can be removed and replaced, but the engagement stability is insufficient and anchorage becomes loose after prolonged use
Solution Approach 1:
The patent employs a dynamic engagement mechanism where the pulling pin moves from an inserted state (during attachment) to a pulled state (during removal), and the spring transitions between compressed and relaxed states. This dynamic system ensures stable anchorage during wear while enabling easy removal when needed, resolving the contradiction between engagement stability and ease of operation.
Solution Approach 2:
The engagement device is segmented into distinct functional components: the pulling pin with head, the spring mechanism, the first engagement plate attached to the sole, and the second engagement plate attached to the heel. This segmentation allows each component to perform its specific function optimally, with the pin providing anchorage, the spring providing tension, and the plates providing mounting surfaces, thereby improving overall reliability.
2Reliability
If complex engagement devices with multiple components are used to ensure stable anchorage, then engagement stability improves, but the device complexity increases making it difficult for users without manual skills to operate
Solution Approach 1:
The engagement device is designed to be self-servicing during operation. The pulling pin automatically engages with the guide slot and guide opening during insertion, and the spring automatically provides the necessary tension to secure the connection. During removal, the user simply pulls the pin head, and the mechanism self-dismantles without requiring manual manipulation of multiple components, thus maintaining ease of operation while ensuring stable anchorage.
Solution Approach 2:
The spring acts as an intermediary element between the pulling pin and the engagement plates. It automatically adjusts its compression to maintain optimal tension in the pin, ensuring stable anchorage without requiring the user to manually adjust or tighten any components. This intermediary mechanism simplifies operation while improving reliability.
3Ease of operation
If simple engagement devices are used to allow easy removal and replacement, then ease of operation improves, but the anchorage does not ensure long-term wearproof performance leading to maintenance needs
Solution Approach 1:
The dynamic spring mechanism automatically adjusts to maintain optimal tension in the pulling pin throughout the wear lifecycle. As the anchorage experiences stress and potential loosening during prolonged use, the spring's elastic properties allow it to compensate and maintain secure engagement, ensuring long-term wearproof performance while keeping the removal process simple.
4Ease of manufacture
If conventional anchoring mechanisms are used, then the heel can be attached to the shoe, but the engagement devices do not maintain stability after repeated anchoring and disanchoring operations
Solution Approach 1:
The spring mechanism is pre-loaded during manufacturing to provide initial tension in the pulling pin. This beforehand cushioning ensures that from the first use, the engagement device maintains optimal anchorage strength. The spring's pre-compression compensates for any potential loosening that may occur during repeated anchoring and disanchoring operations, maintaining stability throughout the product lifecycle.
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 stable engagement and easy removal of the removable heel, simplifying operations for all users and reducing the need for frequent maintenance or replacement, maintaining stability even after prolonged use.
Implementation Method 1
equipped with spring (10)
Implementation Method 2
the second engagement plate (6), for the connection to the first engagement plate (2)
Data Source
AI summary
Device for the replacement of the removable heel provided with pulling engagement devices in a shoe with removable heel including, associated to the heel-holding sole, a first engagement plate with hooking seats provided with guide slot and guide opening for the engagement of the head of a pulling pin as well as of a first engagement wall and a second engagement wall among which the guide opening is arranged, being the first engagement plate provided with an engagement pin and at least one guide seat, being a second engagement plate joined to the upper part of the removable heel and equipped with pulling pins, provided with head and spring, being the second engagement plate, for the association to the first engagement plate, provided with at least one small peg, through seats and through opening.