Liquid Jet Head External Coupling for Frame-Ground Verification
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Solution Overview
Problem
Existing liquid jet heads and recording apparatuses face difficulties in visually confirming the frame ground coupling during assembly, as coupling members are often disposed inside the module, making it challenging to ensure proper electrical connection and assembly verification.
Innovation Solution
The coupling member is partially or entirely disposed outside the jet module, allowing for easy visual confirmation and fixation, with features like screw fixation and clamping by a stay to enhance reliability and reduce component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the coupling member is disposed inside the jet module, then the electrical connection is protected and compact, but it becomes difficult to visually confirm the frame ground coupling during assembly
Solution Approach 1:
The patent extracts part of the coupling member from the internal structure of the jet module and positions it on the external surface. This allows the coupling member to serve dual purposes: maintaining electrical connection reliability when connected to the frame ground, while also being visually accessible for assembly verification. The external positioning enables operators to confirm proper coupling without disassembling or opening the jet module housing.
2Volume of moving object
If the coupling member is disposed inside the jet module, then the structure is compact, but it reduces workability during fixation and assembly
Solution Approach 1:
The patent repositions the coupling member from a three-dimensional internal space to a two-dimensional external surface of the jet module. This dimensional transition allows the coupling member to remain functionally integrated with the module while being accessible from the outside for fixation operations. The external positioning enables workers to perform fixation tasks without interfering with internal components or requiring complex disassembly procedures.
3Ease of operation
If the coupling member is disposed outside the jet module, then assembly verification becomes easier, but it may increase the overall component count or structural complexity
Solution Approach 1:
The patent designs the coupling member to serve multiple functions: it provides electrical connection to the frame ground, acts as a visible indicator for assembly verification, and serves as a mounting point for fixation. By integrating these functions into a single component rather than adding separate elements, the patent avoids increasing overall structural complexity while achieving improved assembly verification and workability.
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 facilitates easier assembly verification, improves workability, ensures reliable electrical conduction, and allows for higher density integration of liquid jet heads without increasing thickness, while reducing the number of components needed.
Implementation Method 1
a coupling member having conductivity and configured to couple the jet module to the frame ground
Data Source
AI summary
Visual confirmation of frame ground coupling at the time of assembling is made easy. A liquid jet head according to an aspect of the present disclosure is provided with a jet module configured to jet a liquid, and a coupling member having conductivity and configured to couple the jet module to the frame ground, wherein at least a part of the coupling member is disposed outside the jet module.