Hinged Pipe Coupling Assembly With Identical Segments
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Solution Overview
Problem
Existing pipe couplings often require multiple different parts, leading to increased manufacturing complexity, costs, and time due to the need for different molds and tooling, as well as requiring multiple fasteners for assembly, which complicates the installation process.
Innovation Solution
A pipe coupling design featuring two identical or substantially identical coupling segments with a split tab and window hinge arrangement, allowing for hinged rotation between open and closed positions, and secured with a single fastener, reducing the need for multiple parts and fasteners, and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple different parts are used in pipe coupling design, then the coupling can fulfill its sealing and connecting functions, but the manufacturing complexity, costs, and time increase due to the need for different molds and tooling
Solution Approach 1:
The patent merges multiple different parts into a single integrated coupling body that includes both the first and second coupling segments as one piece. This eliminates the need for separate molds and tooling for different parts, reducing manufacturing complexity and costs while maintaining the sealing function through integrated gasket engagement features
Solution Approach 2:
The single coupling body performs multiple functions: it provides the first coupling segment for connecting one pipe, the second coupling segment for connecting another pipe, and includes integrated features for gasket engagement and sealing. This multi-functional design reduces the number of parts needed while fulfilling all necessary coupling functions
2Strength
If multiple fasteners are used for assembly, then the coupling can be securely assembled, but the installation process becomes more complicated
Solution Approach 1:
The patent combines multiple fastener functions into a single fastener that secures both the first and second coupling segments simultaneously. This single fastener design simplifies the installation process by reducing the number of fastening operations required while maintaining secure assembly through its engagement with both segments and the gasket
3Productivity
If a single casting is used for both coupling segments, then manufacturing time and costs are reduced, but the structural complexity of the single piece increases
Solution Approach 1:
The single coupling body is designed with distinct first and second coupling segments that are clearly defined within the monolithic structure. This segmentation allows the casting to be produced as one piece using standard molding techniques while maintaining the functional separation needed for connecting two pipes, balancing manufacturing simplicity with structural functionality
Data Source
AI summary
A pipe coupling has a housing, a mounting portion extending away from a first side of the housing, and a hinge portion extending away from a second side of the housing. The housing is defined by a first axial wall, a second axial wall spaced apart from the first axial wall, and a semi-cylindrical outer surface extending between the first axial wall and the second axial wall. Each of the first axial wall and second axial wall have a semi-annular shape defining a passage radially inward from the first axial wall and second axial wall. The mounting portion has a flange and a hole formed through the flange. The hinge portion includes a tab and a frame. The tab extends partially between the first axial wall and the second axial wall, and the frame also extends partially between the first axial wall and the second axial wall.