Shielding Plate Mechanism for Safe Printer Maintenance Access
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Solution Overview
Problem
Operators face challenges when performing tasks inside an ink jet printer due to the need to avoid contact with processing units, such as heaters, which diverts their attention and increases task duration.
Innovation Solution
A transportation device with a displaceable cover member and an interlocking mechanism that positions a shielding plate between the operator's hands and processing units, allowing safe entry and reducing the risk of contact and heat exposure, while also regulating gas outflow and air convection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cover member is opened to allow operator access to the working area, then the operator can perform maintenance tasks, but the operator risks contact with the processing unit which increases task time and reduces productivity
Solution Approach 1:
A shielding plate is introduced as an intermediary element between the operator's hands and the processing unit. The shielding plate is positioned to physically block contact while allowing the operator to safely access the working area for maintenance tasks, thereby resolving the contradiction between ease of operation and productivity
2Productivity
If the processing unit is positioned close to the transportation path for efficient processing, then processing effectiveness is improved, but the risk of contact with operator hands increases when the cover is opened
Solution Approach 1:
The shielding plate serves as a mediator that allows the processing unit to maintain its optimal position close to the transportation path for efficient processing, while simultaneously protecting the operator from harmful contact by blocking the direct path between the processing unit and operator hands
3Reliability
If the cover member is kept closed to protect internal components, then the processing unit is protected from damage, but the operator cannot access the working area for maintenance
Solution Approach 1:
The shielding plate enables the cover member to remain closed for protection while allowing operator access by creating a safe zone between the operator's hands and the processing unit, thus maintaining both reliability and ease of operation simultaneously
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
Enables operators to perform tasks easily and safely by minimizing contact with processing units and reducing power consumption, while preventing unnecessary convection and solvent contamination within the printer.
Implementation Method 1
a mounted heater (a heating unit) for volatilizing solvent of ink adhered to a portion (hereinafter, referred to as 'a recorded portion') of the medium
Implementation Method 2
the shielding plate is positioned at a second position... the second position is set as the position between the working area and the processing unit
Implementation Method 3
the shielding plate may regulate outflow of gas inside the working area, which is heated by the heating unit, to the outside of the working area
Implementation Method 4
a blower that blows air toward the working area
Data Source
AI summary
A transportation device includes a cover member that is displaceable between a closing position for closing an opening of a body case and an opening position for opening the opening, a processing unit that is arranged inside the body case, and performs a specified processing with respect to a medium transported to a working area communicating with the outside of the body case through the opening when the cover member is positioned at the opening position, and a transmitted unit that is positioned at a first position different from a position between the working area and the processing unit when the cover member is positioned at the closing position, and is positioned at a second position which is the position between the working area and the processing unit when the cover member is positioned at the opening position.