Rotatable Pressing Mechanism for Inkjet Head Unit Fixing
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Solution Overview
Problem
Conventional fixing mechanisms for inkjet printer head units face a trade-off between fixing force and workability due to the restoring force of leaf springs, resulting in either excessive frictional resistance or inadequate fixing force during mounting operations.
Innovation Solution
A fixing mechanism with first and second positioning parts, each comprising a rotatable pressing member and position regulation parts, allows for adjustable posture and reduced frictional resistance during mounting, enabling precise positioning and fixing of the head unit with improved workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the restoring force of the leaf spring is set to a large value to increase the fixing force of the head unit to the carriage, then the fixing force is improved, but the frictional resistance in the moving operation of the head unit for mounting increases resulting in bad workability
Solution Approach 1:
The pressing member is designed to be movable relative to the carriage in the mounting direction, allowing it to dynamically adjust its position. During mounting operations, the pressing member can move to reduce frictional resistance, and during normal operation, it returns to apply fixing force, thus resolving the contradiction between fixing force and workability
Solution Approach 2:
The pressing member changes its pressing force parameter dynamically. By controlling the movable component, the system can reduce the pressing force during mounting operations to improve workability, and increase it during normal operation to maintain adequate fixing force, thereby resolving the trade-off
2Ease of operation
If the restoring force of the leaf spring is set to a small value to improve the workability in the mounting operation of the head unit, then the workability is improved, but the fixing force of the head unit to the carriage is decreased
Solution Approach 1:
The movable pressing member allows the system to dynamically adjust the fixing force. During mounting, the pressing member moves to minimize friction, improving workability. During normal operation, it returns to apply sufficient fixing force, thus resolving the contradiction between improved workability and adequate fixing force
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 mechanism effectively positions and fixes the head unit with reduced frictional resistance, enhancing workability and maintaining adequate fixing force, thus addressing the limitations of conventional techniques.
Implementation Method 1
a pressing member (511) that presses the head unit (21) mounted on the lower frame (201)
Data Source
AI summary
Each of a first pressing member and a second pressing member is rotatable about a predetermined axis so as to be capable of changing its posture between a first posture and a second posture inclined upward at its end from the first posture, and is disposed on the mounting part in a rockable manner in a direction pressing the head unit, so as to press the head unit in the first posture.