Banknote Accumulation Mechanism for Collision-Free Cash Handling

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Solution Overview

Problem

Existing banknote processing devices face issues with banknote collisions and accumulation failures due to the need for large mounting spaces and the risk of banknotes being pulled out during rotation, as well as difficulties in maintaining and recovering misplaced banknotes.

Innovation Solution

A banknote processing device incorporating an impeller-shaped wheel with a shallower banknote insertion angle, a lever mechanism to prevent collisions, and a movable pressing plate to ensure accurate accumulation, reducing the risk of banknote separation and improving maintenance efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a large number of banknotes are conveyed at once to the accumulation region, then the processing efficiency is improved, but the risk of collision and damage to banknotes increases

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidbanknote collision damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The accumulation region is divided into multiple compartments (first accumulation region and second accumulation region) separated by a partition wall. This segmentation allows banknotes to be conveyed in groups to different regions simultaneously, maintaining high processing efficiency while reducing collision risk within each smaller region.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A pressing plate is introduced as an intermediary component that applies pressure to banknotes in the accumulation region, keeping them neatly arranged and preventing collision. The pressing plate acts as a mediator between the conveyed banknotes and the accumulation region structure, ensuring orderly stacking without damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the structure is simplified to reduce complexity, then the device becomes easier to manufacture and maintain, but the ability to convey and manage large volumes of banknotes efficiently is reduced

Engineering Contradiction:
Improvestructure complexityVSAvoidbanknote processing capacity
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The pressing plate serves multiple functions: it presses banknotes to keep them neatly arranged, prevents collision, and can be adjusted to accommodate different accumulation region configurations. This multi-functionality allows the device to maintain high processing capacity without adding proportionally complex structural elements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The pressing plate is designed to be movable rather than fixed, allowing it to adapt to different banknote volumes and accumulation region configurations. This dynamic design enables the simplified structure to handle varying processing capacities efficiently without requiring multiple fixed components for different scenarios.

Inventive Principle:
Principle #15Dynamics

3Quantity of substance

If the accumulation region capacity is increased to handle more banknotes, then the processing efficiency is improved, but the risk of collision and damage to banknotes increases

Engineering Contradiction:
Improveaccumulation region capacityVSAvoidbanknote collision damage
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The accumulation region is segmented into multiple compartments that can be filled sequentially. This allows the total capacity to be increased while maintaining smaller effective collision zones within each compartment, thus handling more banknotes without proportionally increasing collision risk.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pressing plate acts as a mediator that distributes banknotes evenly within the accumulation region, preventing them from piling up in ways that cause collision. This intermediary component enables the system to safely accommodate larger quantities of banknotes by maintaining orderly arrangement throughout the expanded capacity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4184463B1Banknote processing device and automatic transaction device
Publication Date: 2026.04.29 HITACHI CHANNEL SOLUTIONS CORP
  • EP4184463B1 patent drawingFigure 1
  • EP4184463B1 patent drawingFigure 2
  • EP4184463B1 patent drawingFigure 3

AI summary

The banknote processing device includes: a roller (3) and a lever (5) configured to prevent collision of the banknotes conveyed from an upper side of a deposit/withdrawal port; a wheel (2) configured to convey the banknotes to the accumulation region (7); and a pressing plate (4) configured to retain the banknotes conveyed into the accumulation region by the wheel (2), the roller (3), and the lever (5) in the accumulation region.