Adjustable Belt Support for Cash Box Friction Control

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Solution Overview

Problem

Existing cash cassettes face issues with notes protruding during manual insertion due to high friction between belts and notes, leading to misalignment and problems during automated payout.

Innovation Solution

A cash box with adjustable belt supports that can be raised to increase friction for mechanical feeding and lowered for manual feeding, ensuring secure storage and correct alignment of notes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the belt is positioned to provide high friction for mechanical feeding, then reliable mechanical feeding is achieved, but notes protruding during manual insertion are pulled under the stack causing misalignment

Engineering Contradiction:
Improvemechanical feeding reliabilityVSAvoidnotes alignment
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The belt support is made adjustable between two positions, allowing the system to dynamically adapt its friction characteristics based on the operation mode. In the first position, the belt provides high friction for reliable mechanical feeding; in the second position, the belt is lowered to reduce friction and prevent pulling under during manual insertion, thus resolving the contradiction between reliability and alignment precision.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the physical parameter of belt position (height relative to the receiving area) to control the friction force. By adjusting the belt support position, the friction coefficient between the belt and notes is effectively modified, allowing optimization for different operational requirements - high friction for mechanical feeding, low friction for manual insertion.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the belt support is raised to increase friction, then secure mechanical feeding is achieved, but the device complexity increases

Engineering Contradiction:
Improvenotes transport securityVSAvoidbelt support adjustment mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The belt support adjustment is integrated with the existing locking unit mechanism. When the locking unit opens or closes, it automatically triggers the belt support to move between positions through coordinated mechanical action. This self-service approach eliminates the need for separate control systems or additional actuators, maintaining device simplicity while achieving the desired friction adjustment.

Inventive Principle:
Principle #25Self-service

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 adjustable belt supports allow for optimal friction adjustment, ensuring reliable mechanical feeding and safe manual insertion by preventing notes from being pulled under the stack, maintaining correct alignment and secure storage.

Implementation Method 1

there is greater frictional force between the belts and the notes of value received in the receiving area than when the strap support is arranged in the first position

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2913801B1Money box with adjustable belt support
Publication Date: 2021.12.15 WINCOR NIXDORF INT GMBH
  • EP2913801B1 patent drawingFigure 1
  • EP2913801B1 patent drawingFigure 2
  • EP2913801B1 patent drawingFigure 3~4

AI summary

The invention relates to a cash box (10) having a receiving area (24) bounded by a base unit (26) for receiving a stack of banknotes. The base unit (26) comprises at least one belt (28, 30) on which the banknotes received in the receiving area (24) rest with their edges. Furthermore, at least one belt support (50, 52) is provided, which is adjustable between a first and a second position, wherein the belt support (50, 52) raises the belt (28, 30) in the second position relative to the first position in the direction of the receiving area (24).