Bending Guide for Manual Sheet Binding

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing image forming systems require manual binding processing of sheet bundles, which can be cumbersome and inefficient, especially when integrated with image forming apparatuses.

Innovation Solution

A post-processing apparatus with a manual feed processing unit and a binder that includes a guide with a bending guide portion to facilitate easy insertion and binding of sheet bundles, allowing for efficient manual binding processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual binding processing is performed without a bending guide portion, then the structure is simpler, but the sheet bundle cannot be easily inserted and positioned for binding

Engineering Contradiction:
Improveease of insertionVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The guide includes a bending guide portion with a curved surface that bends in the width direction of the sheet bundle. This curvature allows the sheet bundle to be easily inserted and automatically positioned, with the curved surface guiding the sheets into the correct binding position without requiring complex positioning mechanisms.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Manufacturing precision

If the guide is added to the manual feed processing unit, then the binding precision is improved, but the device complexity increases

Engineering Contradiction:
Improvebinding precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The guide is divided into multiple functional portions: a bending guide portion with a curved surface for positioning, and a flat guide portion for maintaining the bent state. This segmentation allows each portion to perform its specific function efficiently, achieving precise binding without requiring an overly complex integrated structure.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the bending guide portion is designed with a large bending radius, then the sheet bundle can be bent more easily, but the binding position accuracy decreases

Engineering Contradiction:
Improveease of bendingVSAvoidbinding position accuracy
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The bending guide portion features a curved surface with an optimized bending radius that balances ease of insertion with positioning accuracy. The curved surface guides the sheet bundle through a gentle bend while maintaining sufficient contact with the guide to ensure accurate binding position, resolving the contradiction between ease of bending and precision.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentUS20250206560A1Post-processing apparatus and image forming system
Publication Date: 2025.06.26 RICOH CO LTD
  • US20250206560A1 patent drawing
  • US20250206560A1 patent drawing
  • US20250206560A1 patent drawing

AI summary

A post-processing apparatus includes a manual feed processing unit and a binder. A sheet bundle including a plurality of sheets stacked is manually fed into the manual feed processing unit. The binder binds a leading end of the sheet bundle downstream in a manual feed direction of the sheet bundle in a state where the sheet bundle is manually fed into the manual feed processing unit. The manual feed processing unit includes a guide. The guide includes a bending guide portion to bend a portion upstream from the leading end of the sheet bundle in the manual feed direction.