Three-Layer Scrubber Sponge with Integrated Semi-Rigid Scraping Edge

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Solution Overview

Problem

Existing cleaning devices for dishes fail to provide a durable, economical, and efficient solution that combines a semi-rigid scraping edge with absorbent and abrasive surfaces for effective washing, scrubbing, and scraping.

Innovation Solution

A scrubber/scraper sponge comprising three layers: a soft, absorbent sponge layer on the bottom, an abrasive layer on top, and a semi-rigid scraping edge with flexible barbs that secure the scraping layer to the sponge, allowing for durable and replaceable scraping functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single cleaning device combines scraping, scrubbing, and washing functions, then cleaning efficiency is improved, but device complexity increases

Engineering Contradiction:

Improvecleaning efficiencyVSAvoiddevice complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent combines scraping, scrubbing, and washing functions into a single integrated cleaning device. The sponge structure integrates a scraping layer with semi-rigid edges for scraping, an abrasive layer for scrubbing, and an absorbent layer for washing, eliminating the need for multiple separate tools and thereby improving cleaning efficiency while maintaining manageable device complexity through functional integration.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cleaning device is designed with multi-functionality, where one sponge structure performs scraping, scrubbing, and washing operations. The scraping layer with semi-rigid edges enables scraping of food residues, the abrasive layer provides scrubbing capability, and the absorbent layer facilitates washing, allowing a single device to handle multiple cleaning tasks that would traditionally require separate tools.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If a semi-rigid scraping edge is added to the sponge, then scraping effectiveness is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvescraping effectivenessVSAvoidmanufacturing complexity

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The sponge structure implements local quality by providing a scraping layer with semi-rigid edges only at the peripheral edges where scraping is needed, while the central and bottom portions maintain soft absorbent properties. This localized differentiation enhances scraping effectiveness at the edges without requiring the entire sponge to be rigid, thereby simplifying manufacturing compared to a fully rigid scraping tool.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The invention uses composite material structure with a scraping layer that has semi-rigid properties integrated into the softer sponge body. This composite construction allows the device to exhibit both rigid characteristics at the edges for effective scraping and flexible, absorbent properties in the main body, achieving scraping effectiveness while maintaining ease of manufacture through a unified composite structure rather than assembling separate rigid and flexible components.

Inventive Principle:

Principle #40Composite materials

3Reliability

If flexible barbs are used to secure the scraping layer, then durability is improved, but manufacturing precision requirements increase

Engineering Contradiction:

ImprovedurabilityVSAvoidmanufacturing precision

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The invention employs flexible barbs as a mechanical fastening mechanism that changes the structural parameters of the sponge assembly. The barbs provide secure attachment of the scraping layer to the sponge body through a simple mechanical interlocking action, enhancing durability without requiring complex bonding processes or high-precision manufacturing. The barb design allows for tolerance in positioning while maintaining secure attachment, thereby reducing manufacturing precision requirements compared to alternative fastening methods.

Inventive Principle:

Principle #35Parameter changes

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 scrubber/scraper sponge offers a long-lasting, cost-effective solution for washing, scrubbing, and scraping, with the scraping edge providing efficient food removal and the absorbent and abrasive surfaces facilitating thorough cleaning.

Implementation Method 1

A lower sponge layer provides a soft, absorbent washing surface on the bottom surface of the sponge

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

An upper abrasive layer provides a scrubbing surface on the top surface of the sponge

Methodology Applied

Scientific EffectAbrasion: Abrasion

Data Source

PatentUS10441131B2Scrubber/scraper sponge

Publication Date: 2019.10.15 FRONTERA GIOVANNI

AI summary

The invention is directed to a scrubber/scraper sponge. The sponge is comprised of three layers. A lower sponge layer provides a soft, absorbent washing surface on the bottom surface of the sponge. An upper abrasive layer provides a scrubbing surface on the top surface of the sponge. The front peripheral edge of the sponge provides a scraping edge on a scraping layer, which extends partially from the front edge toward the rear edge of the sponge, between the sponge layer and the abrasive layer. Flexible barbs extend rearward from the rear edge of the scraping layer, such that the barbs become embedded in the sponge layer during the manufacturing process and firmly secure the scraping layer to the sponge layer.