Paper Binding Device Separating Unit Prevents Sticking
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Solution Overview
Problem
Conventional paper binding devices using pressure-bonding teeth portions often result in paper sheets sticking to the movable pressure-bonding member, leading to paper jams and damage during the binding and disengagement process.
Innovation Solution
A paper binding device with a pair of binding members, a moving unit, a separating unit, and a restricting member that coordinates the movement of one binding member between a binding and retracted position, ensuring the bundle of paper sheets is separated from the binding member when disengaged, preventing sticking and potential damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a strong pressure force is applied to strongly engage the bundle of paper sheets using the pair of pressure-bonding teeth portions, then the binding strength is improved, but the bundle of paper sheets may stick to the movable pressure-bonding teeth portion causing paper jam and damage
Solution Approach 1:
The movable pressure-bonding member is divided into two functional parts: the pressure-bonding teeth portions for binding and the separating unit for releasing. This segmentation allows the member to perform both binding and separation functions without requiring separate components, resolving the contradiction between strong engagement and easy release.
Solution Approach 2:
The separating unit is positioned to contact the bundle of paper sheets before the movable pressure-bonding member fully retracts. This preliminary action of the separating unit prevents the paper sheets from sticking to the teeth portions during the release process, ensuring smooth disengagement while maintaining strong binding during the pressing phase.
2Ease of repair
If the movable pressure-bonding member is designed to detachably attach to the fixed pressure-bonding member, then the ease of repair and maintenance is improved, but the device complexity increases
Solution Approach 1:
The separating unit is integrated into the movable pressure-bonding member as a unified component rather than a separate attachment. This merging reduces the number of detachable parts and simplifies the attachment mechanism while maintaining the ease of repair benefit through the overall detachable design of the movable member.
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
Prevents paper sheets from sticking to the movable binding member, reducing the risk of paper jams and damage, allowing for efficient and reliable binding operations.
Implementation Method 1
a separating unit that moves coordinating with movement of the one of the pair of binding members, and when the one of the pair of binding members moves from the binding position to the retracted position, that contacts with the bundle of the paper sheets and causes the bundle of paper sheets to separate from the one of the pair of binding members
Data Source
AI summary
A paper binding device comprises: a pair of binding members that has a pair of teeth portions, and presses to bind a bundle of paper sheets; a moving unit that causes one of the pair of binding members to move along with the other of the pair of binding members between a binding position at which the bundle of paper sheets is bound and a retracted position; a separating unit that moves coordinating with movement of the one of the pair of binding members, and when the one of the pair of binding members moves from the binding position to the retracted position, that contacts with the bundle of the paper sheets and causes the bundle of paper sheets to separate from the one of the pair of binding members; and a restricting member that stops the separating unit at a restricting position between the binding position and the retracted position, when the one of the pair of the binding members moves from the binding position to the retracted position.