Scraper With Wide Scraping Edge Using Magnetic Hinge
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Solution Overview
Problem
Conventional scrapers, such as razor blade scrapers and utility knife holders, are not suitable for heavy-duty scraping due to their lack of a wide sharp surface and require time-consuming blade replacement processes.
Innovation Solution
A scraper with a two-part body held together by high Gauss surface field magnets, allowing a utility knife blade to project for extended edge use, featuring a hinge for easy opening, storage for additional blades, and uneven surfaces for improved grip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional razor blade scrapers are used, then the device is simple and easy to manufacture, but the blade cuts into surfaces and does not work well with many surfaces
Solution Approach 1:
The blade holder is divided into two separate parts (first part and second part) that can be assembled together to form the complete holder. This segmentation allows for easier manufacturing and assembly while providing a secure fit for the blade, resolving the contradiction between scraping effectiveness and device complexity.
2Reliability
If conventional utility knife blades are used, then a stronger and more usable elongate cutting edge is provided, but the holder facilitates cutting with just one point of the blade and does not provide a wide sharp surface for scraping
Solution Approach 1:
The blade is positioned and oriented within the holder to extend beyond the front end, utilizing the dimensional space available. This allows the entire elongate edge of the blade to be exposed and accessible for scraping operations, transforming the single-point cutting capability into a wide-surface scraping tool while maintaining the strength of the utility knife blade.
3Adaptability or versatility
If scrapers with different blades are provided, then blade variety is available, but removing screws and fasteners hampers quick transfer to a new blade and requires additional tools
Solution Approach 1:
The magnetic assembly mechanism replaces the conventional screw and fastener system. The magnetic force provides sufficient holding strength to secure the blade while allowing for easy removal and replacement without tools. This substitution eliminates the time-consuming process of removing screws and enables quick blade changes, resolving the contradiction between adaptability and time loss.
4Ease of operation
If a hinge joins the body parts, then easy opening and closing is achieved, but the structure becomes more complex
Solution Approach 1:
The hinge mechanism enables the body parts to change their relative position between closed and open states. This parameter change (angular position) provides ease of operation for loading and unloading blades while the hinge itself remains a simple, minimalistic component that does not significantly increase overall device complexity.
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
Enables efficient scraping and cutting with a wide, durable edge, allowing for quick blade rotation and replacement without tools, enhancing usability on rough surfaces.
Implementation Method 1
at least a pair of magnets with high Gauss surface field and which hold a utility knife blade
Implementation Method 2
a first and a second magnet received in the first and second body parts respectively; the magnets operably holding the body parts together and the blade within the body parts
Data Source
AI summary
A scraper having an utility knife blade with an exposed elongate scraping edge wherein the entire edge is exposed and usable by a person using the scraper. The scraper has two parts joined by a hinge and held together during use by a pair of opposed magnets. The magnets also securely hold the blade in the body during use.