Sheet Storage Device Movable Regulation Unit Fixing Mechanism
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Solution Overview
Problem
Existing sheet storage devices for image forming apparatuses face challenges in efficiently regulating the position of sheets of varying sizes, particularly during transportation and standard size usage, as the regulation units are often cumbersome to fix or move.
Innovation Solution
A sheet storage device with a movable regulation unit, utilizing a pinion gear and rack portions to adjust width regulation members, which can be fixed using a stopper mechanism that engages with the rack portions to prevent movement, allowing for easy positioning and secure fixation of sheets without the need for additional screw holes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the regulation unit is made movable to adjust sheet positions, then the adaptability to various sheet sizes is improved, but the stability during transportation deteriorates
Solution Approach 1:
The regulation unit is designed to be movable during operation to adapt to different sheet sizes, but includes a fixing member that can lock it in position during transportation. This dynamic design allows the system to switch between movable and fixed states based on operational needs.
Solution Approach 2:
The fixing member is selectively positioned to engage with the regulation unit only when needed for transportation stability. The local application of the fixing mechanism allows the rest of the system to remain movable and adaptable during sheet storage operations.
2Stability of the object's composition
If the regulation unit is fixed to prevent movement during transportation, then the stability is improved, but the ease of operation for adjusting sheet positions deteriorates
Solution Approach 1:
The fixing mechanism is separated into a distinct fixing member that can be independently engaged or disengaged from the regulation unit. This segmentation allows the regulation unit to remain movable during operation while providing a simple fixing option when needed.
Solution Approach 2:
The fixing function is extracted as a separate fixing member that can be attached to the sheet storage device in place of the rotation member. This extraction allows the fixing capability to be added without complicating the regulation unit's movement mechanism.
3Reliability
If a complex fixing mechanism with additional components is used to secure the regulation unit, then the reliability of fixation is improved, but the device complexity increases
Solution Approach 1:
The fixing member is designed to perform multiple functions: it can be attached in place of the rotation member, engage with the rack portions to prevent movement, and serve as a simple indicator of the fixed state. This multi-functionality reduces the need for additional separate fixing components.
Solution Approach 2:
The fixing member combines the fixation function with the existing rotation member mounting location. By merging the fixing mechanism with the existing structure, the patent avoids adding separate complex fixing components while maintaining reliable fixation.
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 enables efficient and secure positioning of sheets of various sizes, simplifies the fixing process, and reduces the risk of misalignment during transportation, enhancing the usability and reliability of the sheet storage device.
Implementation Method 1
the moving members are moved by rotation of a rotation member in a case where the rotation member is in contact with the moving members
Data Source
AI summary
A sheet storage device for storing sheets includes a supporting unit, a regulation unit, and a moving unit. The supporting unit supports stored sheets. The regulation unit is movably arranged on the supporting unit, and regulates a position of an edge portion of a sheet. The moving unit moves the regulation unit. The moving unit includes moving members to move in a direction parallel to a moving direction of the regulation unit. The moving members are moved by rotation of a rotation member in a case where the rotation member is in contact with the moving members. In a case where a fixing member attached to the sheet storage device in place of the rotation member, movement of the moving members is regulated by placing the moving members into contact with the fixing member.