Brushed Roller Bank Note Guide for Jam Reduction
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Solution Overview
Problem
Existing cash systems face challenges in guiding bank notes, particularly due to variations in origin and condition, which can cause jams and wear on both the notes and system components, as current guiding methods are not insensitive to these factors and often fail to handle notes of different stiffness and angles effectively.
Innovation Solution
A note directing device utilizing a brushed roller with radially extending bristles, which rotates to engage and redirect bank notes along a tangential path, reducing wear and improving handling of both soft and stiff notes by allowing for curvature and flexible engagement, thereby minimizing jams and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a static flap guide is used to direct bank notes, then the guiding structure is simple, but soft or worn bank notes may fold or jam when engaging the static flap at high speed
Solution Approach 1:
The patent applies the dynamics principle by replacing the static flap guide with a rotating brushed roller. The roller rotates in the direction of bank note movement, and its surface bristles dynamically adapt to the note's position and angle, preventing folding and jams while maintaining simple structure.
2Reliability
If a rubber wheel note direction changer is used, then soft bank notes are handled better, but stiff bank notes may not conform to the wheel perimeter and cannot be bent sufficiently
Solution Approach 1:
The patent applies local quality by using a brushed roller with bristles that have specific local properties - they are flexible enough to conform to stiff notes locally at the contact point, while the overall roller structure maintains rotational capability. This allows the guiding surface to adapt to different note stiffnesses without requiring the entire note to conform to a fixed perimeter.
Solution Approach 2:
The patent applies parameter changes by making the roller surface compliant through the bristle structure, allowing the contact parameters between the roller and note to adjust dynamically. The bristles can compress and flex to accommodate different note stiffnesses, enabling the same mechanism to handle both soft and stiff notes effectively.
3Device complexity
If conventional guiding methods are used, then the system structure is simple, but wear on bank notes and system components increases
Solution Approach 1:
The patent applies mechanics substitution by replacing the traditional mechanical contact between rigid guiding surfaces and bank notes with a rotational brushed roller system. The rotating bristles create a more gentle, adaptive mechanical interaction that reduces friction-based wear on both the notes and the guiding components.
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 brushed roller system effectively guides bank notes of varying conditions and origins, reducing the risk of jams and wear on both the notes and system components, enhancing the accuracy and reliability of cash handling processes.
Implementation Method 1
the brushed roller is configured to engage with the bank note and rotate in a direction such that the leading edge of the bank note is directed towards the second note feeder
Data Source
AI summary
A note directing device (1) comprises a first note feeder (11), a brushed roller (2), and a second note feeder (12); wherein: the first note feeder (11) feeds the bank note (10) along a direction (A) tangential to a bank note (10) surface and presents the leading edge (14) of the bank note (10) to the brushed roller (2); the brushed roller (2) engages with the bank note (10) and rotates in a direction (B) such that the leading edge (14) is directed towards the second note feeder (12); the second note feeder (12) accepts the leading edge (14) and feeds the bank note (10) along a direction (C) tangential to a bank note (10) surface; wherein the brushed roller (2) comprises an axis (4) and bristles (6), each bristle (6) being attached at one end to the axis (4) and extending radially from said axis (4), the distribution of bristles (6) extending along a longitudinal direction (E) of the axis (4).