Deformable Bushing Bearing Assembly for Low-Wear Pivot Joints
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Solution Overview
Problem
Existing bearing assemblies used as pivots in applications like reclining seats face issues with wear and noise due to metal-to-metal engagement, necessitating improved designs that reduce friction and enhance stability.
Innovation Solution
A bearing assembly featuring a deformable bushing with an axial extension that forms a flange between links upon rivet installation, utilizing a deformable post and rivet flange to securely connect links, thereby reducing friction and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a bearing assembly uses metal-to-metal engagement for pivot connection, then structural simplicity is maintained, but wear and noise increase
Solution Approach 1:
The patent introduces a bushing as an intermediary component between the metal pivot members. The bushing has a smooth bore that receives the pivot pin, preventing direct metal-to-metal contact. This intermediary element reduces friction, wear, and noise while maintaining the overall simplicity of the pivot connection structure.
2Stability of the object's composition
If a deformable bushing with axial extension is used to form flange connection, then connection stability is improved, but manufacturing complexity increases
Solution Approach 1:
The bushing incorporates a deformable axial extension that transforms from a straight configuration during assembly to a bent configuration forming a flange after installation. This dynamic transformation allows the bushing to be inserted through standard openings and then deform to create a secure flange connection, improving connection stability while using a relatively simple forming process.
Solution Approach 2:
The axial extension of the bushing changes its geometric parameters during installation - transitioning from a linear state to a bent flange state. This parameter change enables the bushing to adapt to the connection requirements, forming a stable flange connection that secures the pivot members together.
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 effectively reduces wear and noise by creating a secure, low-friction connection between links, enhancing the stability and performance of bearing assemblies in applications like reclining seat mechanisms.
Implementation Method 1
a deformable bushing with an axial extension that forms a flange between links upon rivet installation
Data Source
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AI summary
A bearing device is disclosed and can include a bushing. The bushing can include a hollow body that can have an internal diameter, IDHB, and proximal ends and distal ends opposite each other. The bushing can also include a first bushing flange extending radially outwardly from the proximal end of the body and an axial extension extending from the distal end of the hollow body. The axial extension is deformable so as to form a second bushing flange extending radially outwardly from the distal and of the hollow body. The axial extension can have an internal diameter, IDAE, ≤ IDHB.