Brush-Based Electrostatic Discharging Roller for Financial Apparatus

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Solution Overview

Problem

Financial apparatuses face issues with static electricity generation during medium transfer, leading to contamination and jamming due to friction between media and rollers, which inhibits efficient processing.

Innovation Solution

An electrostatic discharging apparatus is integrated into the financial apparatus, featuring a rotation shaft with a transfer roller and an electrostatic discharging roller equipped with brushes that remove static electricity without contacting the medium, ensuring effective static electricity removal while transferring media.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If frictional force is used to transfer the medium, then the medium can be moved through the financial apparatus, but static electricity is generated that contaminates the medium and causes jamming

Engineering Contradiction:

Improvemedium transfer efficiencyVSAvoidstatic electricity contamination

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

An electrostatic discharging member with brushes is introduced as an intermediary component between the transfer roller and the medium. The brushes contact the medium to discharge static electricity while the transfer roller continues to provide frictional force for medium transport, thus resolving the contradiction between transfer efficiency and static electricity contamination

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces part of the mechanical friction-based transfer system with an electrostatic discharging mechanism. While the transfer roller maintains mechanical friction for movement, the electrostatic discharging member uses electrical field interaction to remove static electricity, substituting a mechanical approach with an electrostatic one for the anti-static function

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Object-affected harmful factors

If brushes are used to remove static electricity, then static electricity is effectively discharged, but the brushes may contact the medium and cause damage or contamination

Engineering Contradiction:

Improvestatic electricity removalVSAvoidmedium integrity

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The electrostatic discharging member is designed with brushes that have specific local properties - they are positioned to contact only the edges or specific regions of the medium where static electricity accumulates most, rather than contacting the entire surface. This localized brushing approach effectively discharges static electricity while minimizing potential damage to the medium

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The brushes are designed to be flexible and dynamically adjust their contact pressure with the medium during rotation. This dynamic characteristic allows the brushes to effectively discharge static electricity while automatically reducing contact pressure to prevent medium damage, adapting to variations in medium thickness and texture

Inventive Principle:

Principle #15Dynamics

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 solution effectively prevents static electricity from contaminating the media and reducing the likelihood of jamming, ensuring smooth and efficient processing within the financial apparatus.

Implementation Method 1

an electrostatic discharging member disposed on the rotation shaft to rotate together with the rotation shaft, and comprising a plurality of brushes for removing static electricity

Methodology Applied

Scientific EffectElectrostatic discharge: Electrostatic Discharge

Implementation Method 2

A medium in a typical financial apparatus is moved by means of frictional force generated between the medium and members such as rollers

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS8837105B2Electrostatic discharging apparatus and financial apparatus

Publication Date: 2014.09.16 ATEC AP CO LTD

AI summary

Provided is an electrostatic discharging apparatus, which comprises a rotation shaft, a transfer roller, and an electrostatic discharging member. The rotation shaft transmits driving force. The transfer roller is disposed on the rotation shaft to transfer a medium. The electrostatic discharging member is disposed on the rotation shaft to rotate together with the rotation shaft, and comprises a plurality of brushes for removing static electricity.