Vibrating Coin Chute Layout for Jam-Resistant ATM Dispensing
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Solution Overview
Problem
Modern ATMs face challenges in reliably dispensing coins due to complex coin paths in compact designs, leading to momentum loss, jams, and blockages, especially with lighter denominations, which result in poor customer experiences, increased maintenance costs, and operational inefficiencies.
Innovation Solution
Integration of small vibration motors within the coin chute to maintain coin momentum through resonating vibrations, strategically placed to address areas prone to jamming, activated during transactions and calibrated to optimize vibration intensity based on coin characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If compact ATM designs are used to reduce space, then the ATM size is reduced, but coin momentum is lost leading to jams and blockages
Solution Approach 1:
The patent applies mechanical vibration through a piezoelectric element that vibrates the coin media path at specific frequencies. This vibration prevents coins from losing momentum in compact designs by continuously agitating the coin path, ensuring coins maintain sufficient velocity to navigate tight spaces and sharp turns without jamming, thus resolving the reliability issue in compact ATMs.
Solution Approach 2:
The patent changes the physical state of the coin media path by introducing controlled vibrations that alter the dynamic characteristics of coin flow. By adjusting vibration frequency and amplitude parameters, the system optimizes coin movement through compact paths, preventing momentum loss while maintaining the reduced ATM size.
2Volume of moving object
If complex coin paths are used to route coins from deeply positioned modules, then space utilization is improved, but coins lose momentum leading to dispensing failures
Solution Approach 1:
The piezoelectric element generates vibrations that travel through the complex coin path, providing continuous momentum to coins as they navigate deep routes and sharp angles. This ensures coins maintain sufficient kinetic energy throughout the extended path, preventing dispensing failures while utilizing the available space efficiently.
Solution Approach 2:
The system activates vibration before and during coin dispensing operations, preparing the coin path in advance and maintaining agitation throughout the transaction. This preliminary and continuous action ensures coins are constantly propelled through complex paths, preventing momentum loss before it can occur during the dispensing process.
3Adaptability or versatility
If lighter denomination coins are dispensed through complex paths, then currency variety is improved, but momentum loss increases causing jams
Solution Approach 1:
The vibration mechanism specifically addresses the vulnerability of lighter coins by providing continuous agitation that compensates for their lower mass and momentum. The piezoelectric element generates frequencies that effectively propel lightweight coins through complex paths, ensuring they maintain sufficient velocity to prevent jamming, thus enabling reliable dispensing of various denominations including lighter currencies.
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
Significantly improves coin dispensing efficiency, reducing jams and maintenance costs, enhancing customer experience, and allowing for more flexible ATM designs by maintaining coin momentum through complex paths.
Implementation Method 1
small vibration motors integrated into a sidewall of a coin media path... causing vibration along the coin media path
Implementation Method 2
maintain coin momentum through resonating vibrations
Data Source
AI summary
A vibrating coin chute system for automated teller machines (ATMs) and self-service terminals (SSTs) is provided to improve coin dispensing reliability. The system incorporates a small vibration motor encapsulated within a plastic part in the coin path, activated by detecting power draw during transactions. The system reduces jams by maintaining coin momentum through complex chute designs, especially beneficial in compact ATMs/SSTs with long horizontal coin paths. The vibration motor, triggered without software control, continues running briefly after dispensing to ensure complete coin evacuation. The system significantly improves coin dispensing efficiency, reduces service calls, and enhances customer experience. The system's design considers electromagnetic compatibility (EMC) and electrostatic discharge (ESD) risks and allows for universal application across various ATM/SST models, addressing the challenges of coin dispensing in modern, space-constrained terminals.