Sheet Transport Roller Separation With a Lightweight Access Door
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sheet transport devices face complications due to mechanisms on the door side becoming intricate and the weight of the door increasing, making it difficult to open and close.
Innovation Solution
A medium transport device with a first roller and a second roller, supported by a displacement mechanism and a door that rotates around a second rotation shaft, allowing the first roller to be separated from the second roller through a cam structure and rotational force, simplifying the door mechanism and reducing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door includes a complex mechanism to separate rollers, then the roller separation function is improved, but the door weight increases and becomes difficult to open and close
Solution Approach 1:
The patent extracts the roller separation function from the door by introducing a separate displacement mechanism that operates independently. The door simply opens and closes without incorporating complex roller separation mechanisms, thereby reducing door weight while maintaining the roller separation function through the dedicated displacement mechanism.
Solution Approach 2:
The displacement mechanism acts as an intermediary between the door operation and roller separation. When the door opens, the displacement mechanism is activated through an acting section that triggers the roller separation, allowing the door to remain simple while achieving the separation function through the intermediary mechanism.
2Reliability
If the door includes a complex mechanism to separate rollers, then the roller separation function is improved, but the mechanism complexity on the door side increases
Solution Approach 1:
The patent extracts the roller separation function from the door by introducing a separate displacement mechanism that operates independently. The door simply opens and closes without incorporating complex roller separation mechanisms, thereby reducing door weight while maintaining the roller separation function through the dedicated displacement mechanism.
Solution Approach 2:
The patent segments the overall mechanism into distinct functional components: the door for opening/closing, the displacement mechanism for roller separation, and the acting section for triggering the displacement. This segmentation reduces door mechanism complexity by confining complex functions to dedicated components rather than integrating them into the door.
3Ease of operation
If the first roller is separated from the second roller by moving the first rotation shaft, then the medium transport function is improved, but the mechanism complexity increases
Solution Approach 1:
The displacement mechanism is designed to automatically separate the rollers when the door opens, without requiring additional control systems or complex actuation. The acting section leverages the door opening motion itself to trigger the displacement, allowing the mechanism to serve itself through the natural operation sequence.
Solution Approach 2:
The first rotation shaft is designed to be movable rather than fixed, allowing dynamic adjustment of the first roller position. This mobility enables the roller separation function through a simple displacement motion rather than complex mechanical intervention, reducing overall mechanism complexity.
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 enables easy opening and closing of the door without complicating the mechanism, facilitates automatic separation of rollers, and achieves miniaturization while maintaining stability and ease of assembly.
Implementation Method 1
A medium transport device with a first roller and a second roller, supported by a displacement mechanism and a door that rotates around a second rotation shaft, allowing the first roller to be separated from the second roller through a cam structure and rotational force
Implementation Method 2
A medium transport device with a first roller and a second roller, supported by a displacement mechanism and a door that rotates around a second rotation shaft, allowing the first roller to be separated from the second roller through a cam structure and rotational force
Data Source
AI summary
A medium transport device includes a first roller, a second roller, a first rotation shaft supporting the first roller, a displacement mechanism configured to displace the first rotation shaft to a first position P1 where the first roller and the second roller are configured to nip the medium and to a second position P2 where both and are separated from each other, and a door configured to rotate into an opened position and into a closed position around an axis that intersects the first rotation, wherein the door includes an acting section, the displacement mechanism includes an action receiving section, and when the door rotates to the closed position and the acting section no longer pushes the action receiving section, the displacement mechanism displaces the first rotation shaft from the first position to the second position.