Elastomeric Toothbrush Bristles with Compression Sleeves
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional toothbrushes with elastomeric bristles lack effectiveness in removing plaque due to limitations in softness and cleaning efficiency, as they do not adequately address the need for improved stiffness and surface area coverage during brushing.
Innovation Solution
The use of elongated polygonal shaped bristles formed from two distinct components with different materials and additives, combined with compression sleeves that apply varying stiffness to the bristles, creating a flaring effect for enhanced cleaning efficiency and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If elastomeric bristles are used in conventional toothbrushes, then softness is improved, but cleaning effectiveness deteriorates
Solution Approach 1:
The bristle is constructed as a composite structure with an elastomeric core material providing softness and a polymeric outer material providing cleaning effectiveness. This composite approach allows each material to contribute its advantageous properties to the overall bristle performance, resolving the contradiction between softness and cleaning effectiveness.
Solution Approach 2:
Different portions of the bristle have different material properties - the core is elastomeric for softness while the outer layer is polymeric for cleaning effectiveness. This local differentiation of material qualities allows the bristle to simultaneously provide both softness and effective plaque removal.
2Ease of manufacture
If conventional bristles are used, then manufacturing simplicity is maintained, but surface area coverage deteriorates
Solution Approach 1:
The composite construction of the bristle with its dual-material structure increases the effective surface area for cleaning compared to conventional single-material bristles of the same dimensions. The polymeric outer layer provides an extended cleaning surface that enhances plaque removal capability while maintaining manufacturability through standard extrusion processes.
3Ease of manufacture
If uniform stiffness bristles are used, then manufacturing simplicity is maintained, but cleaning effectiveness deteriorates
Solution Approach 1:
The bristle incorporates varying stiffness characteristics through its composite structure - the elastomeric core provides flexibility while the polymeric outer layer provides structured cleaning contact. This local variation in mechanical properties enhances cleaning effectiveness by allowing the bristle to adapt to different tooth surfaces while maintaining manufacturability.
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 solution provides improved plaque removal and increased comfort by allowing for greater surface area coverage and a more effective wiping action, enhancing both the softness and cleaning efficiency of the toothbrush bristles.
Implementation Method 1
the sleeves may apply a compression force to the cleaning elements, thereby creating a flaring effect
Implementation Method 2
The cleaning elements may be formed of an elastomeric material and the sleeves may apply a compression force to the cleaning elements, thereby creating a flaring effect
Data Source
AI summary
An oral care implement that includes a handle and a head, the head having a front surface. A tuft extends from the front surface of the head along an axis and has a plurality of filaments formed of an elastomeric material. A sleeve circumferentially surrounds a first portion of the tuft while a second portion of the tuft protrudes beyond a distal end of the sleeve.