Paper Sheet Handling With Retractable Wind-Holding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Banknotes protruding from withdrawal ports in outdoor ATMs are prone to being blown away by wind, and existing designs that nip banknotes for conveyance make it difficult for customers to remove them without risking damage.
Innovation Solution
A movable unit with a pressing unit that adjusts the size of the taking-out space by moving in relation to the banknote, using a tension spring to facilitate easy removal and prevent wind displacement, while minimizing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If banknotes are left protruding from the withdrawal port for easy customer retrieval, then ease of operation is improved, but banknotes are prone to being blown away by wind in outdoor environments
Solution Approach 1:
The pressing unit is designed to move between a pressing position (where it contacts and holds the banknote) and a retracted position (where it does not interfere with customer retrieval). This dynamic positioning allows the system to adapt to different operational states: holding the banknote securely during/after dispensing, then retracting to allow easy customer access without wind interference.
Solution Approach 2:
The pressing unit applies pressure to the banknote in advance to prevent it from being displaced by wind. By maintaining contact with the banknote at the pressing position, the system proactively counteracts the harmful effect of wind before the banknote can be blown away, while still allowing customer retrieval when the unit retracts.
2Reliability
If a pressing unit is used to hold banknotes securely, then reliability is improved, but device complexity increases due to additional moving components
Solution Approach 1:
The pressing unit is integrated with the movable unit that already exists in the system for other functions. By combining the pressing function with the existing movable structure, the patent adds banknote holding capability without requiring a completely separate mechanism, thereby reducing the overall increase in device complexity.
Solution Approach 2:
The movable unit serves multiple functions: it controls the taking-out space size and houses the pressing unit for banknote holding. This multi-functionality reduces the need for separate dedicated components, thereby improving reliability through functional integration while minimizing the increase in device complexity.
3Stability of the object's composition
If the pressing unit is always in contact with the banknote, then banknote stability is improved, but ease of operation deteriorates as customers cannot easily remove the banknote
Solution Approach 1:
The pressing unit dynamically transitions between contact and non-contact states with the banknote. During the dispensing and immediate post-dispensing phase, it maintains contact for stability. When the customer needs to retrieve the banknote, the pressing unit moves to the retracted position, eliminating the contact that would otherwise hinder removal. This dynamic behavior resolves the contradiction between stability and ease of removal.
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
Prevents banknotes from being blown away and eases customer retrieval, reducing damage risks by allowing controlled pressing and easy extraction.
Implementation Method 1
a tension spring
Data Source
AI summary
A paper sheet handling apparatus includes a movable unit that changes a size of a taking-out space by moving in a direction of approaching a paper sheet discharged to the taking-out space and a direction of retreating the paper sheet, in which the movable unit includes a movable unit main body and a pressing unit movable to a storage position where the pressing unit is moved along the movable unit main body and a pressing position where the pressing unit presses the paper sheet.