Electronic Tissue Dispenser Roll Feed With Dual Pressing Rollers

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Solution Overview

Problem

Conventional electronic tissue dispensers face issues with perforated tissue paper breaking inside the dispenser, leading to malfunction, and accumulate static electricity, posing hygiene and operational risks.

Innovation Solution

An electronic tissue dispenser with a dual pressing roller mechanism that ensures continuous feeding of tissue paper even if perforations break between the rollers, and incorporates a static release mechanism to dissipate static electricity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single pressing roller mechanism is used in electronic tissue dispensers, then the device complexity is reduced, but the tissue paper breaks inside the dispenser leading to malfunction

Engineering Contradiction:
Improvedispensing mechanism complexityVSAvoidtissue paper continuous feeding reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The pressing mechanism is segmented into two separate pressing rollers (first pressing roller and second pressing roller) that independently press the tissue paper against the driving roller at different locations. This segmentation ensures that if the tissue breaks at one location, the other pressing roller can still maintain contact and allow continuous feeding.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dual pressing roller mechanism acts as a preventive measure against tissue breakage. By having redundant pressing points before the tissue exits the dispenser, the system cushions against the risk of perforation breakage, ensuring continuous operation even if one pressing point fails to maintain proper contact.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Object-affected harmful factors

If electronic dispensers are used in public restroom facilities, then hygiene is improved by hands-free operation, but static electricity accumulates causing user shock and operational interference

Engineering Contradiction:
Improveuser exposure to static shockVSAvoidstatic electricity accumulation
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent converts the harmful static electricity accumulation into a beneficial grounding system. By incorporating a grounding mechanism that safely dissipates static charge to earth, the system transforms the potential hazard of static shock into a protective feature that prevents both user shock and electronic interference while maintaining the hands-free hygienic operation.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

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 dual pressing roller mechanism prevents tissue paper breakage and ensures continuous dispensing, while the static release mechanism enhances user safety and operational reliability by eliminating static shocks and electrical interference.

Implementation Method 1

The dispenser can include a static release mechanism to dissipate static electricity during the dispense cycle. If the static charge is not dissipated, the user may receive a static shock if he touches the dispenser during use. The static charge can adversely affect the electronic control and sensor circuitry in the dispenser.

Methodology Applied
Scientific EffectStatic electricity dissipation: Electrostatic Discharge

Data Source

PatentUS10123665B2Electronic residential tissue dispenser
Publication Date: 2018.11.13 KIMBERLY CLARK WORLDWIDE INC
  • US10123665B2 patent drawing
  • US10123665B2 patent drawing
  • US10123665B2 patent drawing

AI summary

An automatic electronic dispenser for dispensing a roll of paper product. A dispenser module drives paper from the roll through a discharge chute at the bottom of the module. A front cover hinged on each side rotates to an open position for loading a paper roll. A back cover enables mounting the electronic dispenser to a vertical surface such as a wall. A paper roll holder is attached to the sides of the dispenser module. A driving roller unrolls the paper from the paper holder in response to a signal from an electronic sensor. A plurality of pressing rollers engaging the driving roller as paper is being dispensed along a path between the pressing and driving rollers to a discharge chute.