Riveted Hinge Assembly for Flush Motorcycle Boot Protection
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Solution Overview
Problem
Existing wearable protection devices for body parts, such as motorcycle boots, often have metallic pivot elements that project and can cause injury, and require time-consuming chemical blocking compounds to prevent unscrewing, increasing costs and assembly time.
Innovation Solution
A wearable protection device with a modular frame and hinge means featuring pivot and disc elements made of metallic material, where the pivot element is permanently coupled to the disc element through riveting, eliminating sharp projections and the need for chemical compounds, ensuring stable coupling and secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pivot element is made of metallic material and screwed into the disc element, then the coupling between shaped members is stable, but the pivot element projects from the disc element and can cause injury to the user's body part
Solution Approach 1:
The harmful projecting portion of the pivot element is extracted/removed by deforming it inside the disc element through riveting, eliminating the injury risk while preserving the stable coupling function
Solution Approach 2:
The pivot element is nested inside the disc element through riveting, where the deformed pivot element is housed within the central hole of the disc element, creating a flush surface that eliminates projections
2Reliability
If a chemical blocking compound is applied on the pivot element and disc element to prevent unscrewing, then the coupling stability is improved, but the assembly time and cost increase
Solution Approach 1:
The riveting action is performed preliminarily during assembly to permanently couple the pivot element to the disc element, eliminating the need for subsequent chemical blocking compound application
Solution Approach 2:
The chemical blocking compound system is replaced with a mechanical riveting system that provides permanent coupling through deformation and physical interlocking
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 solution provides a safe and efficient assembly process without sharp projections that could wound the user, while eliminating the need for chemical blocking compounds, resulting in a faster and more cost-effective assembly of the protection device.
Implementation Method 1
the pivot element is permanently coupled to the disc element through riveting
Implementation Method 2
the end of the pivot element is inserted inside a central hole formed in the disc element... the pivot element is deformed inside the central hole of the disc element
Data Source
Figure 1a~2b
Figure 3a~4b
Figure 5a~6b
AI summary
The present invention relates to a wearable protection device (1) comprising a modular frame (3) with at least two shaped members (4A, 4B, 4C) and hinge means (9) for hinging the shaped members (4A, 4B, 4C) therebetween at corresponding hinging points (5) and around respective rotation axes (X). Each of said hinge means (9) comprises a pivot element (12) and a disc element (13) which are permanently coupled by riveting of the pivot element (12). After the riveting the pivot element (12) is flush with the disc element (13). The present invention also relates to a method of assembling said wearable protection device (1) and to a motorcycle boot (B) comprising said wearable protection device (1).