Stapleless Binding Layout for Compact Media Finishing

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Solution Overview

Problem

Existing medium processing apparatuses with both stapling and stapleless binding devices are bulky due to the outward positioning of the stapleless binding device, which limits space utilization and increases the risk of damage to the binding device.

Innovation Solution

A medium processing apparatus design where the stapleless binding device moves through a transit member and is fastened to a frame with higher rigidity, allowing it to extend beyond the frame's outer edge, while a circuit board is positioned between the frame and an exterior member, optimizing space and reducing damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If the stapleless binding device is positioned outward from the frame to allow full extension, then the device has sufficient operating space, but the overall apparatus size increases

Engineering Contradiction:
Improveoperating space of stapleless binding deviceVSAvoidoverall apparatus size
Core Design Contradiction:
Area of moving objectVSArea of stationary object

Solution Approach 1:

The stapleless binding device is nested within the frame structure, allowing it to extend beyond the frame's outer edge only when needed for operation. The device can be retracted into the frame when not in use, effectively reducing the overall apparatus size while maintaining full operating space when required.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The stapleless binding device is designed to be movable relative to the frame, transitioning between retracted and extended positions. This dynamic configuration allows the apparatus to have a compact form when the device is retracted while providing full extension capability when needed for binding operations.

Inventive Principle:
Principle #15Dynamics

2Area of moving object

If the stapleless binding device is positioned outward from the frame, then the device has sufficient operating space, but the risk of damage to the binding device increases

Engineering Contradiction:
Improveoperating space of stapleless binding deviceVSAvoiddurability of stapleless binding device
Core Design Contradiction:
Area of moving objectVSReliability

Solution Approach 1:

The frame structure provides protective cushioning for the stapleless binding device when it is in the retracted position. The frame acts as a protective barrier that prevents external objects from damaging the binding device during storage or transport, while still allowing full extension when needed for operation.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Area of stationary object

If the frame is positioned inward from the outer edge of the stapleless binding device, then space utilization is improved, but the device complexity increases

Engineering Contradiction:
Improvespace utilizationVSAvoidstructural complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The apparatus is segmented into distinct functional modules: the frame structure, the movable stapleless binding device, and the guiding mechanism. This segmentation allows each component to be optimized independently, with the frame providing structural support and space efficiency while the binding device provides binding functionality, reducing overall system complexity despite the inward frame positioning.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4711855A1Medium processing apparatus and image forming apparatus
Publication Date: 2026.03.18 FUJIFILM BUSINESS INNOVATION CORP
  • EP4711855A1 patent drawingFigure 1
  • EP4711855A1 patent drawingFigure 2
  • EP4711855A1 patent drawingFigure 3

AI summary

A medium processing apparatus (U4) includes a stapling device (9A) that binds media with staples; a stapleless binding device (9B) that binds media without the staples; a guide member (22) that guides the stapling device and the stapleless binding device in a width direction of the media; and a frame (63) disposed at a first end portion of the guide member in the width direction, the frame being positioned inward from an outer edge (66) of the stapleless binding device in a width direction of the stapleless binding device when the stapleless binding device is moved to the first end portion of the guide member.