Twisted Wire Brush with Compressed Spring Coils for Durability
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Solution Overview
Problem
Twisted wire brushes used for cleaning, such as grill brushes, suffer from limited durability due to bristle wear, bending, splintering, and breaking, which can lead to safety hazards and frequent replacements.
Innovation Solution
A twisted wire brush design incorporating a wire core with intertwined core wires and spring coils that are compressed axially to enhance strength and durability, with varying spring coil diameters and configurations to optimize contact with surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If bristles are made thick and rigid for strong cleaning force, then cleaning effectiveness is improved, but durability deteriorates due to bending, splintering, and breaking
Solution Approach 1:
The patent changes the physical state and parameters of the bristle material by transforming it into a spring coil structure. This structural transformation allows the bristles to maintain rigidity for effective cleaning while gaining elasticity and resistance to breaking through the coiled spring configuration, thus resolving the contradiction between cleaning force and durability
Solution Approach 2:
The spring coil structure introduces dynamic flexibility to the bristles, allowing them to deform elastically under load and return to their original shape. This dynamic behavior enables the bristles to withstand repeated cleaning forces without permanent deformation or breakage, maintaining both cleaning effectiveness and durability
2Productivity
If bristles are made rigid for effective cleaning, then cleaning performance is improved, but safety deteriorates due to bristle breakage and fragmentation
Solution Approach 1:
The transformation of bristles into spring coils fundamentally changes their mechanical properties. The coiled structure distributes stress throughout the entire bristle length, preventing the concentration of forces that lead to breakage and fragmentation, thereby maintaining cleaning effectiveness while eliminating safety hazards
Solution Approach 2:
The spring coil structure acts as a built-in cushioning mechanism that absorbs and dissipates cleaning forces through elastic deformation. This beforehand cushioning prevents the bristles from breaking under stress, eliminating the hazard of fragmentation while maintaining cleaning performance
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 design significantly increases the durability of the twisted wire brush, reducing the likelihood of bristle breakage and providing a safer, more effective cleaning tool with improved longevity.
Implementation Method 1
spring coils that are compressed axially to enhance strength and durability
Data Source
AI summary
A twisted wire brush comprises a wire core and at least one length of spring coil. The wire core has a first length, defines a core axis, and comprises at least two core wires intertwined. The core wires twist helically about the core axis. Each length of spring coil extends about at least one of the core wires, and each length of spring coil is pressed between the twisted core wires. In another embodiment, a method of making a twisted wire brush comprises providing at least two core wires, positioning a length of spring coil about each core wire, aligning each length of spring coil, and twisting each core wire about a core axis. In yet another embodiment, a grill brush comprises a handle, a plurality of twisted core wires attached to the handle, and at least one length of spring coil, each length extending about at least one core wire.