Corrugating Rollers for Media Bin Jam Prevention

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Self-service terminals experience input jams and reduced bin capacity due to deformed or non-uniform media items, necessitating frequent service visits.

Innovation Solution

A set of paired corrugating rollers with specific geometries and materials is used to crease media items, forming longitudinal creases that stabilize and straighten them, reducing deformities and preventing jams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If deformed media items are allowed to be deposited without correction, then the terminal accepts all media items, but the bin capacity is significantly reduced and jams occur frequently

Engineering Contradiction:
Improvebin capacity utilizationVSAvoidinput jam prevention
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The corrugating rollers perform preliminary action by creasing and stabilizing media items at the point of deposition, before they enter the storage bin. This pre-treatment prevents deformation during stacking, thereby maximizing bin capacity utilization and preventing input jams before they can occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention changes the physical state of media items by applying controlled creases through the corrugating rollers. This parameter change (from flat to creased) stabilizes the media items, preventing them from deforming during storage and thereby improving both bin capacity utilization and jam prevention.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If media items are creased to prevent deformation, then bin capacity is maximized, but the complexity of the deposition system increases

Engineering Contradiction:
Improvebin capacityVSAvoidcorrugating mechanism
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Instead of attempting to flatten the entire media item, the invention applies local quality by creating specific creases at strategic locations using the corrugating rollers. This localized intervention is sufficient to prevent deformation during stacking, achieving bin capacity maximization with a relatively simple mechanism.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The corrugating rollers use a rounded-V profile with a specific angle and radius to create controlled creases. This curved geometry allows the rollers to apply pressure effectively without requiring complex flattening mechanisms, thereby maximizing bin capacity while maintaining system simplicity.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Stability of the object's composition

If uniform media items are assumed for deposition, then stacking is neat and capacity is maximized, but non-uniform items cause deformation and jams

Engineering Contradiction:
Improvemedia item uniformityVSAvoidservice visit frequency
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The corrugating rollers enable media items to self-stabilize through controlled creasing. Each item is individually treated at the point of deposition, creating a stable configuration that prevents deformation during stacking. This self-service approach ensures uniform stacking behavior regardless of the initial state of the media items, reducing service visit frequency.

Inventive Principle:
Principle #25Self-service

4Adaptability or versatility

If deformed media items are stacked, then all items can be accepted, but more frequent service visits are required to empty the bin

Engineering Contradiction:
Improvemedia item acceptanceVSAvoidservice visit frequency
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The corrugating rollers perform preliminary stabilization of media items at deposition, ensuring they maintain their creased configuration during stacking. This allows the terminal to accept all media items (including deformed ones) while preventing the deformation that would otherwise require frequent service visits to clear jams and re-stack items.

Inventive Principle:
Principle #10Preliminary action

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

The corrugating rollers effectively stabilize media items, allowing them to stack neatly, maximizing bin capacity and minimizing service calls by preventing premature filling and jams.

Implementation Method 1

a set of paired corrugating drive rollers... each of the first corrugating rollers having an outwardly facing rounded-V profile... to crease media items, forming longitudinal creases that stabilize and straighten them

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

a set of paired corrugating drive rollers mounted in a pathway for conveying a received media item to a storage bin

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4325454B1Corrugating rollers apparatus and method for a media storage bin in a self-service terminal
Publication Date: 2026.03.11 CARDTRONICS USA INC
  • EP4325454B1 patent drawingFigure 1
  • EP4325454B1 patent drawingFigure 2A~2B
  • EP4325454B1 patent drawingFigure 3~5B

AI summary

A self-service terminal, an apparatus, and a method for corrugating received media items is disclosed. A bin is provided for storing media items. A pathway selectively conveys a received media item to the bin. The apparatus, including a set of paired corrugating drive rollers, is mounted in the pathway for creasing the received media item as it is conveyed to the bin. The set of paired corrugating drive rollers has a plurality of first corrugating rollers mounted in a spaced apart fashion on a common shaft, each of the first corrugating rollers having an outwardly facing rounded-V profile, and a plurality of second corrugating rollers mounted in a spaced apart fashion on a common shaft, each of the second corrugating rollers having an inwardly facing slot. Each of the plurality of first corrugating rollers is positioned adjacent to a corresponding one of the plurality of second corrugating rollers.