Liquid Ejection Head Unit Grip Layout for Easier Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing large printers face challenges in easily replacing head units due to their heavy weight, making manual handling difficult and inefficient.
Innovation Solution
The head unit design includes specific grip and support structures that facilitate easier handling and attachment to a carriage, with optimized placement of components to reduce the distance between grips and other features for improved ergonomics and efficiency in replacement operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the head unit is designed with all necessary components (connector, drive board, fan, tube coupling section, liquid ejection head), then the functionality is complete, but the weight increases making manual handling difficult
Solution Approach 1:
The head unit is designed as a modular assembly with distinct functional components (connector, drive board, fan, tube coupling section, liquid ejection head) that can be individually replaced or maintained. This segmentation allows for targeted repairs without replacing the entire heavy unit, improving ease of repair while maintaining complete functionality.
2Reliability
If the head unit is made heavy duty to ensure durability, then reliability is improved, but ease of operation deteriorates due to difficult lifting and positioning
Solution Approach 1:
A carriage serves as an intermediary device that supports the head unit during installation and operation. The carriage provides mechanical support and positioning assistance, enabling operators to easily install heavy head units without directly lifting them, thus maintaining reliability while improving ease of operation.
3Device complexity
If the distance between the grip and other components (connector, vent, tube coupling section) is reduced for compactness, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The housing is designed with locally optimized features: the grip position is specifically configured to be closer to the connector, first vent, and tube coupling section, creating localized ergonomic improvements without requiring high-precision manufacturing throughout the entire structure. This local quality approach reduces overall device complexity while maintaining functional effectiveness.
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 design enhances the ease of replacing heavy head units, improving operational efficiency and reducing the effort required for maintenance tasks.
Implementation Method 1
a liquid ejection head including a piezoelectric element configured to eject the liquid by application of the drive signal
Implementation Method 2
a fan configured to suction a gas from one of a first vent and a second vent and discharge the gas from another of the first vent and the second vent
Data Source
AI summary
A head unit includes a connector, a fan, a tube coupling section, a liquid ejection head, a housing is provided with a first vent and a second vent, a first grip, and a second grip, wherein the connector and the first vent are provided to a first surface of the housing, the tube coupling section is provided to a second surface of the housing, the second grip is provided to the second surface of the housing, the first grip is provided to a fourth surface of the housing, the second vent is disposed at a position visible when viewed from a normal direction of the second surface, and a shortest distance between the second grip and the fourth surface is shorter than a shortest distance between the tube coupling section and the fourth surface and shorter than a shortest distance between the second vent and the fourth surface.