ATM Bill Folding Mechanism for Tactile Denomination Identification

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Solution Overview

Problem

Visually impaired individuals face difficulties in distinguishing between different denominations of currency, as paper bills of various denominations in the United States are the same size and shape, making it impossible to differentiate without sight.

Innovation Solution

Automated teller machines (ATMs) and cash dispensers are configured to dispense folded bills based on denomination, allowing users to identify the denomination through tactile means, with options for user-preferred folding configurations and auditory or tactile feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If bills of different denominations are dispensed in the same configuration (unfolded), then the cash dispensing process is simple and efficient, but visually impaired individuals cannot distinguish between different denominations

Engineering Contradiction:

Improvecurrency denomination identificationVSAvoidbill folding mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by creating distinct fold patterns for different bill denominations. Each denomination receives a specific fold configuration (e.g., single fold, double fold, corner fold) that is localized to that particular bill type, enabling tactile differentiation while maintaining the overall simplicity of the dispensing system.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The bill folding device performs preliminary action by folding bills according to their denomination before they are dispensed to the user. This pre-processing step ensures that when bills are delivered to visually impaired individuals, the tactile differences are already present, eliminating the need for additional identification steps during the transaction.

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If all bills are folded to assist visually impaired users, then tactile identification is improved, but the processing time and complexity of the cash dispensing system increases

Engineering Contradiction:

Improvetactile bill identificationVSAvoidbill folding processing time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system applies partial action by folding only the necessary portion of each bill according to its denomination type, rather than uniformly folding all bills in the same manner. This selective approach reduces processing time while still providing sufficient tactile differentiation for identification purposes.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent changes physical parameters of the bills by varying fold patterns, fold depths, and fold locations based on denomination. This parameter variation creates distinct tactile characteristics that improve ease of operation for visually impaired users without requiring excessive processing time, as the changes are applied efficiently through automated folding mechanisms.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If the cash dispenser automatically identifies and folds bills based on denomination, then accessibility for visually impaired users is enhanced, but the device complexity and cost increase

Engineering Contradiction:

Improveaccommodation for visually impaired usersVSAvoidautomated bill identification and folding system

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cash dispenser system achieves universality by integrating multiple functions into a single device: bill denomination identification, automated folding pattern selection, and tactile differentiation. This multi-functional approach allows the system to serve both visually impaired and sighted users, enhancing adaptability while consolidating complexity into a unified system rather than requiring separate devices.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system applies self-service by automatically identifying bill denominations and applying appropriate fold patterns without requiring manual intervention. The cash dispenser autonomously determines which fold pattern to apply based on the bill type, reducing the need for additional operational steps and minimizing the complexity of user interaction while maintaining high adaptability.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8469262B2Cash folding apparatus and method

Publication Date: 2013.06.25 BANK OF AMERICA CORP

AI summary

Embodiments of the present invention provide currency solutions for the visually impaired by, for example, providing automated teller machines (ATMs) or other cash dispensers configured to dispense folded bills to the customer. The bills are folded based on denomination to allow the customer receiving the bills from the cash dispenser to be able to identify the denomination of each bill. In some embodiments, the cash dispenser is configured to automatically identify whether the customer prefers to receive folded bills and, in some embodiments, the cash dispenser is configured to fold and dispense bills according to customer preferences.