Rectangular Concrete Scraper With Rotatable Steel Wire Texturing

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing concrete finishing tools are heavy and physically demanding, leading to increased exertion and potential exposure to hazardous debris, and they often fail to provide a desirable surface texture for traction.

Innovation Solution

A rectangular scraper with a braided steel wire attachment and a lightweight handle, allowing for efficient scraping and finishing of concrete with reduced physical effort, while also providing the option to add texture through the use of the steel wires.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional heavy concrete finishing tools are used, then scraping and finishing capability is achieved, but physical exertion increases and productivity decreases

Engineering Contradiction:

ImproveproductivityVSAvoidphysical exertion

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The scraper is divided into separate components: a lightweight handle and a detachable scraping element with steel wires. This segmentation allows the tool to be lighter and easier to operate while maintaining effective scraping capability through the specialized wire component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The scraper combines different materials strategically: a lightweight handle material (such as plastic or aluminum) combined with durable braided steel wires for the scraping element. This composite approach reduces overall tool weight and physical exertion while preserving scraping effectiveness.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If traditional scraping methods are used, then concrete finishing is achieved, but exposure to hazardous debris increases

Engineering Contradiction:

Improvedebris exposureVSAvoidproduction efficiency

Core Design Contradiction:

Object-affected harmful factorsVSProductivity

Solution Approach 1:

The braided steel wires act as an intermediary between the worker and the concrete debris. The wires contain and control the debris during scraping, preventing it from becoming airborne or scattered, thereby reducing worker exposure while maintaining scraping efficiency.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Shape

If smooth concrete surface is achieved through screeding, then flatness is improved, but surface texture for traction is lost

Engineering Contradiction:

Improvesurface flatnessVSAvoidsurface slipperiness

Core Design Contradiction:

ShapeVSObject-generated harmful factors

Solution Approach 1:

The scraper applies different surface qualities to different needs: the flat bottom surface of the scraper maintains overall flatness, while the protruding braided steel wires create localized texture and traction. This local quality differentiation allows both smoothness and grip in the same finished surface.

Inventive Principle:

Principle #3Local quality

4Loss of substance

If concrete loss is not mitigated during scraping, then material waste increases

Engineering Contradiction:

Improveconcrete lossVSAvoidscraping effectiveness

Core Design Contradiction:

Loss of substanceVSDevice complexity

Solution Approach 1:

The scraper is designed to be rotatable, allowing dynamic adjustment of the scraping angle and wire orientation. This dynamic capability enables precise control over concrete removal, minimizing waste by scraping only what is necessary while maintaining effective scraping action.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20260009191A1Rectangular scraper

Publication Date: 2026.01.08 HASSAN MOHAMED A

AI summary

A concrete scraper has a rectangular shaped sheet metal body attached to an elongated handle. The rectangular shaped body has a top edge configured to scrape and finish concrete. Concrete grabbing steel wires extend downwardly from the front of the body opposite the top edge of the body. Users have the option of rotating the scraper to scrape concrete with or without the steel wires.