Binding Apparatus Pressing Member Projections for Small Stack Damage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing binding apparatuses often cause damage to recording media when binding a stack with fewer sheets than the maximum capacity, as the deformation and elongation of sheets can lead to creasing and reduced binding force.
Innovation Solution
Incorporating a suppressing part, such as void areas between projections on the pressing members, which reduces the elongation of sheets during binding, thereby minimizing damage and maintaining a strong binding force even with smaller stacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If pressing members are used to bind recording media, then binding force is improved, but damage to recording media occurs when binding small stacks
Solution Approach 1:
The pressing members are designed with multiple projections that create localized pressing regions. Each projection applies pressure to a specific area of the recording media stack, allowing the binding force to be concentrated where needed while leaving other areas unaffected. This localised pressing approach maintains binding strength without causing widespread damage to the media surfaces.
Solution Approach 2:
The pressing members are divided into multiple discrete projections rather than a single continuous pressing surface. This segmentation allows the binding force to be distributed across multiple contact points, reducing the pressure intensity at each individual point and thereby minimizing damage to recording media while still achieving effective binding through cumulative effect.
2Reliability
If pressing members press the entire stack, then binding effectiveness is improved, but elongation and creasing of sheets occurs
Solution Approach 1:
Instead of applying uniform pressure across the entire stack surface, the pressing members use discrete projections that create localized pressing zones. This localized approach binds the media effectively at specific points while leaving intervening areas uncompressed, thereby preventing elongation and creasing that would result from full-surface pressing.
Solution Approach 2:
The pressing members apply pressure to only the necessary portions of the recording media stack through their projections, rather than pressing the entire stack surface. This partial action approach achieves sufficient binding effectiveness at the projection contact points without subjecting the entire media stack to deforming pressures.
Data Source
AI summary
A binding apparatus includes: a first pressing member that presses a recording-medium stack from one side of the recording-medium stack; a second pressing member that faces the first pressing member and presses the recording-medium stack from the other side of the recording-medium stack; and a suppressing part provided in at least one of the first pressing member and the second pressing member, the suppressing part suppressing damage to recording media that may be caused when a recording-medium stack including a smaller number of sheets than the maximum number of sheets that can be bound is bound with the first pressing member and the second pressing member.