Sheet Storing Apparatus Reversing Roller Corrugation
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Solution Overview
Problem
Existing sheet storing apparatuses face challenges in reliably conveying and positioning sheets, particularly curled or thin sheets, due to the formation of a large distance between the sheet discharging port and the processing tray, leading to sheet jamming, skewing, and positional shifting during the conveying process.
Innovation Solution
A sheet storing apparatus is designed with a reversing roller capable of forward and reverse rotation, which forms corrugated-plate-shaped corrugations on sheets before conveying them to the processing tray and corrects these corrugations to a flat shape before storing them on the stack tray, ensuring accurate positioning and preventing jamming and shifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a large distance is formed between the sheet discharging port and the processing tray for miniaturization, then the apparatus becomes more compact, but sheet jamming and conveying reliability deteriorate
Solution Approach 1:
The corrugation forming means performs preliminary action by creating corrugations on the sheet before it is conveyed to the processing tray. This preliminary structuring of the sheet provides inherent stability and prevents jamming during the conveying process, allowing the apparatus to maintain compact dimensions while ensuring reliable sheet transport.
Solution Approach 2:
The invention changes the physical parameter of the sheet by forming corrugations, which transforms the sheet from a flat state to a structured state with enhanced rigidity. This parameter change enables the sheet to be reliably conveyed over the necessary distance without jamming, resolving the contradiction between compact apparatus design and conveying reliability.
2Reliability
If corrugations are formed on sheets to prevent jamming, then sheet conveying reliability improves, but sheet positioning precision deteriorates due to skewing and positional shifting
Solution Approach 1:
The de-curling means performs preliminary action by correcting the corrugations and flattening the sheet before it reaches the stack tray. This preliminary correction eliminates the skewing and positional shifting that would otherwise occur during stacking, thereby maintaining positioning precision while preserving the conveying reliability benefits of the corrugations.
Solution Approach 2:
The invention dynamically changes the physical parameter of the sheet by first creating corrugations for reliable conveying, then removing them for precise positioning. This sequential parameter change allows the system to optimize for different requirements at different stages of the sheet handling process.
3Area of stationary object
If the sheet discharging port is distanced from the processing tray, then space for arranging the processing tray is reduced, but sheet conveyance stability worsens
Solution Approach 1:
The corrugation forming means applies preliminary action by structuring the sheet before conveyance, providing inherent stability that enables the sheet to be conveyed stably even when the discharging port is positioned at an optimal distance for compact apparatus arrangement. This preliminary structuring compensates for the reduced conveyance distance stability.
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 solution effectively conveys sheets to the processing tray without jamming and ensures accurate placement on the stack tray, reducing sheet skewing and positional shifting, thereby stabilizing the conveyance of various sheet types, including thick and thin sheets.
Implementation Method 1
a reversing roller capable of being rotated forwardly and reversely is arranged at a tray sheet discharging port, a leading end of a sheet conveyed from a sheet discharging port is received by the reversing roller, reverse rotation of the roller conveys the sheet to the processing tray
Implementation Method 2
corrects these corrugations to a flat shape before storing them on the stack tray, ensuring accurate positioning and preventing jamming and shifting
Data Source
AI summary
Provided is a sheet storing apparatus including a processing tray and a stack tray arranged respectively at the downstream side of a path sheet discharging port of a sheet discharging path and at the downstream side of the processing tray as forming a step respectively, and a reversing roller arranged at a tray sheet discharging port as being capable of rotating forwardly and reversely to convey a sheet conveyed from the path sheet discharging port selectively to the processing tray and the stack tray, so that a sheet to be conveyed to the processing tray from the path sheet discharging port is conveyed in a state of having corrugations formed thereon and a sheet to be conveyed to the stack tray from the sheet discharging port is stored at the stack tray in a flat shape as having the corrugations corrected after passing through the reversing roller.