Suction Unit Movable Member Restricting Part
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Solution Overview
Problem
Existing recording-material-transporting devices with movable suction units face issues of interference and damage when the suction unit moves outside the perimeter of the recording material stack, especially if the recording material is not properly aligned or if suction fails, leading to potential damage to the device and materials.
Innovation Solution
Incorporating a restricting part that limits the downward movement of the movable member when it is outside the support of the recording material, ensuring it does not interfere with other materials and preventing damage by maintaining its position within the stack's perimeter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the suction unit moves with no recording material being present directly below the movable member, then the movable member may be lowered when advancing to the outside of the perimeter of the stack, but this causes interference with recording materials and potential damage
Solution Approach 1:
The restricting part is installed in advance to prevent the movable member from moving downward when no recording material is present. This preliminary protective measure ensures that even if suction fails or material positioning is incorrect, the movable member cannot interfere with the recording material stack, thereby resolving the contradiction between operational range and reliability
2Adaptability or versatility
If the movable member is allowed to move freely up and down, then the suction unit can adapt to different material positions, but the movable member may damage recording materials and itself when interfering with the stack
Solution Approach 1:
The restricting part applies a preliminary counter-action by physically blocking the downward movement of the movable member when no recording material is present to support it. This prevents the harmful effect of interference and damage before it can occur, while still allowing the suction unit to maintain adaptability through its movement in the intersecting direction
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 reduces the likelihood of faults and damage by ensuring the movable member remains within the stack's bounds, even when suction fails or materials are not aligned, thereby enhancing the reliability and safety of the recording-material-transporting process.
Implementation Method 1
an air sending device that generates a vacuum pressure in an air plenum so that a sheet included in a sheet stack is suctioned
Implementation Method 2
a movable member that moves upward when pushed from below by the recording material moving upward with the suction
Data Source
AI summary
A recording-material-transporting device includes a suction unit that suctions a recording material included in a recording-material stack from above, the suction unit including a movable member that moves upward when pushed from below by the recording material moving upward with the suction, the suction unit being movable in an intersecting direction intersecting a vertical direction and moving the suctioned recording material in the intersecting direction, at least a part of the movable member serving as an outside advancing part that advances to an outside of a perimeter of the recording-material stack with the movement of the suction unit in the intersecting direction; and a restricting part that restricts a downward movement of the outside advancing part when the outside advancing part is free of support by the recording material from below.