Sheet Drying Ink-Flow Coupling for Leak-Resistant Maintenance
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Solution Overview
Problem
Existing inkjet recording apparatuses face challenges in efficiently connecting and disconnecting coupling members for ink circulation, leading to potential ink leakage and assembly issues.
Innovation Solution
A flow path connection mechanism featuring rotatable cylindrical coupling members with concavo-convex structures and biasing mechanisms, utilizing laser welding for secure attachment and minimizing clearance to prevent ink leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If coupling members are connected and disconnected frequently for maintenance, then adjustability and maintainability are improved, but ink leakage and connection reliability deteriorate
Solution Approach 1:
The connection mechanism is divided into separate components: a first coupling member with external concavo-convex structures, a second coupling member with internal corresponding structures, and a connection member. This segmentation allows independent optimization of each component while ensuring reliable connection through precise geometric interlocking.
Solution Approach 2:
The concavo-convex structures are designed with asymmetric geometries that provide directional connection. The convex portions on one coupling member fit into corresponding concave portions on the other, creating a non-reversible connection that prevents disassembly and ensures reliable liquid-tight coupling.
2Reliability
If connection structures are made more secure to prevent ink leakage, then reliability is improved, but device complexity increases
Solution Approach 1:
The connection member integrates multiple functions into a single component: it provides the interface for coupling members, incorporates the concavo-convex sealing structures, and enables rotational engagement. This merging reduces the number of separate parts while achieving reliable sealing through integrated design.
Solution Approach 2:
The connection member acts as an intermediary between the first and second coupling members. It mediates the connection process by providing a standardized interface that receives both coupling members and ensures their proper alignment and sealing through its concavo-convex structures.
3Ease of operation
If coupling members are designed for easy insertion and rotation, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The concavo-convex structures are designed with localized geometric features that provide guidance and alignment during insertion. The convex portions are positioned to engage with corresponding concave portions at specific locations, providing tactile feedback and operational ease while maintaining controlled precision in critical sealing areas.
Data Source
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AI summary
A flow path connection mechanism (1000) includes a first coupling member (1), a second coupling member (2), and a connection member (3). The connection member (3) is mounted to the second coupling member (2). The first coupling member (1) and the second coupling member (2) each include a concavo-convex structure (R, R1, R2) having irregularities in an axis direction. The first coupling member (1) is inserted into the connection member (3), and thus the respective concavo-convex structures (R, R1, R2) of the first coupling member (1) and the second coupling member (2) engage with each other in a circumferential direction.