Paper Supply Apparatus Abutment Member Positioning
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Solution Overview
Problem
Existing paper supply apparatuses often transport paper in a tilted state due to the lifting of paper edges, especially with heavy or highly elastic paper, leading to potential damage and inefficiency, as existing abutment members may not provide sufficient strength to prevent tilting without being damaged.
Innovation Solution
A paper supply apparatus with a fixed guide and an adjustable movable guide, featuring a paper supply roller and an abutment member supported by an elastic member, where the abutment member is positioned downstream of the paper supply roller to ensure both sides of the paper are held down, reducing tilting and minimizing the force required for the abutment member, thus preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an abutment member is provided on the movable guide side to suppress paper lifting, then paper tilting is prevented, but the abutment member may be damaged due to insufficient strength
Solution Approach 1:
Instead of placing the abutment member upstream (before the paper supply roller) to prevent paper lifting, the invention positions it downstream (after the paper supply roller). This inversion allows the abutment member to work with the paper's natural transport direction, reducing the force required and preventing damage while still suppressing paper tilting effectively.
Solution Approach 2:
The invention changes the positional parameter of the abutment member from upstream to downstream relative to the paper supply roller. This parameter change transforms the force requirements, allowing a weaker abutment member to achieve the same paper stabilization effect without risking damage.
2Reliability
If a strong abutment member is used to prevent paper tilting with heavy paper, then paper transport stability is improved, but the abutment member itself may be damaged
Solution Approach 1:
The invention inverts the conventional approach by positioning the abutment member downstream instead of upstream. This inversion reduces the force required from the abutment member, allowing it to prevent paper tilting with heavy paper without risking damage to the member itself.
3Reliability
If the abutment member is positioned upstream like the paper supply roller, then both sides of paper are held down effectively, but the abutment member requires excessive force and may be damaged
Solution Approach 1:
The invention inverts the positional arrangement by placing the abutment member downstream rather than upstream alongside the paper supply roller. This inversion reduces the force requirement while maintaining the ability to hold down both sides of the paper effectively.
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 apparatus effectively suppresses paper tilting during transport, ensuring both sides are kept in place, even with heavy paper, while reducing the risk of abutment member damage by applying a weaker force, thus maintaining efficient paper transport and apparatus integrity.
Implementation Method 1
an elastic member that biases the abutment member toward the placement surface
Data Source
AI summary
A paper supply apparatus includes: a placement surface on which paper to be transported is placed; a fixed guide that guides the transport of the paper; a movable guide whose distance to the fixed guide in the widthwise direction of the paper is capable of being adjusted and that guides the transport of the paper; a paper supply roller that abuts the paper in a position, on the side where the fixed guide is located, and that is rotationally driven so as to transport the paper; an abutment member, provided on the movable guide. The abutment member is disposed in a position so that a second abutment point where the abutment member abuts the surface of the paper is further downstream in the transport direction of the paper than a first abutment point where the paper supply roller abuts the surface of the paper.