Carriage Posture Stabilization via Intermediary Holder in Liquid Discharge Apparatus
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Solution Overview
Problem
Existing liquid discharge apparatuses face issues with the carriage's posture stability due to reaction forces from supply tubes and cables, leading to variations in the gap between the liquid discharge head and the printing medium, which affects print quality.
Innovation Solution
A mounting structure with a displaceable attachment part and holder that securely connects the tubes and cables to the carriage, featuring a rotatable attachment bracket, vertical slot, torque limiter, tension coil spring, and timing belt to absorb and distribute forces, preventing posture changes and maintaining stable printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tubes and cables are connected to the liquid discharge head mounted on the carriage, then liquid supply and electrical signals can be provided to the discharge head, but reaction forces from the tubes and cables cause the carriage posture to change, affecting print quality
Solution Approach 1:
A holder is introduced as an intermediary component between the carriage and the tubes/cables. The holder is fixed to the carriage while the tubes and cables are connected to the holder, not directly to the carriage. This intermediary structure absorbs and distributes the reaction forces from the tubes and cables, preventing them from directly affecting the carriage posture and maintaining printing stability.
Solution Approach 2:
The connection system is segmented into multiple components: the carriage, the holder, and the tube/cable connections. By separating the direct connection between carriage and tubes/cables through the holder, the system divides the force transmission path, allowing the holder to independently manage the mechanical stresses while the carriage maintains its positional stability.
2Device complexity
If a fixed tube holder is used to hold tubes and cables, then the structure is simple, but the carriage posture changes due to reaction forces during movement
Solution Approach 1:
The holder serves as a mediator that is relatively easily manufacturable while still providing the necessary force distribution function. It connects the tubes and cables to the carriage in a way that prevents direct force transmission to the carriage body, achieving both simplicity and stability.
3Ease of manufacture
If tubes and cables are directly connected to the carriage, then the connection is straightforward, but the gap between the liquid discharge head and printing medium varies due to carriage posture changes
Solution Approach 1:
The holder acts as an intermediary connection component that maintains the positional relationship between the carriage and the tubes/cables. It absorbs the mechanical stresses and prevents them from affecting the precision of the liquid discharge head's position relative to the printing medium, ensuring consistent printing quality.
Solution Approach 2:
The connection system is divided into the carriage, holder, and tube/cable components. This segmentation allows the holder to specifically manage the mechanical stress isolation function, while the carriage focuses on precise positioning, thereby maintaining manufacturing precision without complicating the overall assembly process.
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 stabilizes the carriage's posture, reducing variations in the gap between the liquid discharge head and the printing medium, thereby enhancing print quality and maintaining consistent printing performance.
Implementation Method 1
a mounting structure with a displaceable attachment part and holder that securely connects the tubes and cables to the carriage, featuring a rotatable attachment bracket, vertical slot, torque limiter, tension coil spring, and timing belt to absorb and distribute forces
Data Source
AI summary
A liquid discharge apparatus includes a liquid discharge head configured to discharge a liquid, a carriage configured to movably hold the liquid discharge head, an attachment part displaceably attached to the carriage, and a holder connected to the attachment part. The holder holds at least one of a cable and a tube connected to the liquid discharge head.