Sheet Binding Apparatus Peeling Mechanism for Corner Separation
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Solution Overview
Problem
Existing sheet binding apparatuses face difficulties in easily peeling off sheet bundles from pressure-bonding teeth, requiring significant force, especially at deflected positions like corners, due to insufficient peeling force and design limitations.
Innovation Solution
A sheet binding apparatus with a peeling mechanism that applies force in a stepwise manner using multiple peeling members, moving in a direction opposite to the pressure-bonding direction, to facilitate stable peeling after pressure-bonding, employing a combination of peeling springs and a movable binding teeth cover member for enhanced peeling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a single peeling member is used to peel off sheets from binding teeth, then the structure is simple, but sufficient peeling force cannot be exhibited especially at deflected positions like corners
Solution Approach 1:
The peeling mechanism is divided into multiple peeling members (first peeling member and second peeling member) that act at different locations and timings. The first peeling member peels sheets at the binding position, while the second peeling member peels sheets at deflected positions like corners, ensuring comprehensive peeling coverage with distributed force application.
2Ease of operation
If large force is applied to peel off sheets from binding teeth, then peeling is achieved, but sheet damage may occur and the binding quality deteriorates
Solution Approach 1:
The peeling members are designed to apply peeling force in a controlled, stepwise manner immediately after binding. The first peeling member acts at the binding position first, followed by the second peeling member at deflected positions, preventing sheet damage by avoiding sudden large-force application while ensuring reliable peeling.
3Reliability
If peeling force is applied only at the binding position, then the structure is simple, but sheets at deflected positions like corners cannot be properly peeled off
Solution Approach 1:
Different peeling members are positioned at different locations to address local peeling needs. The first peeling member is positioned at the binding position to handle centrally bound sheets, while the second peeling member is positioned to handle deflected sheets at corners and edges, ensuring each location receives appropriate peeling force.
4Productivity
If sheets are fed out in a linear direction after binding, then the discharge process is simple, but it is difficult to peel off the sheet bundle from the concavo-convex pressing surface
Solution Approach 1:
The peeling members are activated during or immediately after the binding process to apply peeling force before the sheets are discharged. This preliminary peeling action separates sheets from the binding teeth surface, preventing sticking and ensuring smooth linear discharge without peeling difficulties.
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
Enables sheets to be peeled off from binding teeth with minimal force, preventing damage and ensuring reliable peeling even at deflected positions, thus improving the efficiency and safety of the binding process.
Implementation Method 1
a plurality of peeling members configured to apply peeling force in a direction opposite to a pressure-bonding direction to peel off a bound portion of sheets stuck to the surface when the first binding portion and the second binding portion are separated
Implementation Method 2
a moving means configured to move one of the first binding portion and the second binding portion to bring the first binding portion and the second binding portion into pressure contact with each other
Data Source
AI summary
The present invention is to provide a sheet binding apparatus capable of performing stable pressure-bonding binding processing. A sheet binding apparatus includes a moving means configured to move at least one of the first binding portion and the second binding portion to bring the first binding portion and the second binding portion into pressure contact with each other, and a plurality of peeling members configured to apply peeling force in a direction opposite to a pressure-bonding direction to peel off a bound portion of the sheets stuck to the surface when the first binding portion and the second binding portion are separated by the moving means after pressure-bonding binding processing is performed. Here, the peeling force is applied by the plurality of peeling members at different timings.