Fluid Discharge Apparatus Coupling Mechanism for Positional Offset
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Solution Overview
Problem
Existing fluid discharge apparatuses face challenges in simplifying the exchange operation of moving bodies and suppressing positional offset between the discharge port and the moving body, particularly in configurations where the moving body is attachable and detachable.
Innovation Solution
A fluid discharge apparatus is designed with a storage chamber, a moving body, a drive mechanism, and a coupling member, where the coupling member includes a biasing section that applies an elastic force to the moving body, allowing for easy attachment and detachment, and absorbs positioning errors by enabling elastic displacement of the leading end portion relative to the discharge port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the moving body is made attachable and detachable for maintenance and adjustment, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The coupling member is divided into distinct functional sections: a biasing section (elastic member) and a coupling section. This segmentation allows the elastic member to provide automatic attachment/detachment functionality while the coupling section maintains precise positioning, resolving the contradiction between ease of operation and device complexity by distributing functions across separate structural elements.
Solution Approach 2:
The biasing section is configured to automatically guide the moving body into the correct position and maintain coupling without requiring precise manual alignment during attachment. The elastic member's restoring force self-corrects positioning errors, making the exchange operation easier while keeping the overall mechanism relatively simple.
2Ease of repair
If the moving body is made attachable and detachable, then the ease of repair is improved, but the manufacturing precision requirements increase to suppress positional offset
Solution Approach 1:
The biasing section is pre-configured with elastic properties that compensate for potential positioning errors during attachment. The elastic member acts as a cushion that absorbs dimensional variations and alignment tolerances, allowing easier replacement of the moving body while maintaining sufficient positioning accuracy without requiring extremely tight manufacturing tolerances.
Solution Approach 2:
The elastic member's stiffness parameter is optimized to balance two requirements: it must be compliant enough to absorb positioning errors and facilitate easy attachment, yet rigid enough to maintain precise positioning of the moving body's leading end portion relative to the discharge port. This parameter optimization resolves the contradiction between ease of repair and manufacturing precision requirements.
3Reliability
If the coupling member presses the moving body against it, then the reliability of coupling is improved, but the elastic displacement capability for positioning adjustment is reduced
Solution Approach 1:
The coupling member is segmented into a biasing section that provides pressing force for reliable coupling, and a coupling section that allows controlled elastic displacement for positioning adjustment. This segmentation enables the pressing force to be applied at one location while maintaining displacement capability at another, resolving the contradiction between coupling reliability and positioning adjustability.
Solution Approach 2:
The coupling member incorporates dynamic characteristics through the elastic member, which can deform under load to allow positioning adjustments, then restore to maintain reliable coupling. The system transitions between a more compliant state during positioning and a more rigid state during operation, resolving the contradiction between reliability and adjustment capability.
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
This configuration simplifies the attachment and detachment of the moving body, reduces positional offset issues, and ensures efficient fluid discharge by allowing the moving body to adjust its position relative to the discharge port, thereby improving operational precision and reducing maintenance complexity.
Implementation Method 1
The coupling member includes a biasing section to apply an elastic force in a direction to move the moving body toward the drive mechanism, and, while pressing the moving body against the coupling member, to support the moving body in a state in which the moving body is capable of elastic displacement in a direction toward the discharge port
Data Source
AI summary
A fluid discharge apparatus includes a storage chamber, a moving body, a drive mechanism, and a coupling member. The storage chamber includes a discharge port to discharge the fluid. The moving body includes a leading end portion facing the discharge port inside the storage chamber. The drive mechanism is positioned on the opposite side of the moving body to the discharge port, and performs an operation to reciprocate the moving body. The coupling member couples the moving body to the drive mechanism such that the moving body is attachable and detachable. The coupling member includes a biasing section to apply an elastic force in a direction to move the moving body toward the drive mechanism, and, while pressing the moving body against the coupling member, to support the moving body in a state in which the moving body is capable of elastic displacement in a direction toward the discharge port.