Toothbrush Head With Movable Carrier For Oral Contour Adaptation

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Solution Overview

Problem

Existing oral care implements with rigid toothbrush head configurations struggle to adapt to the complex contours of teeth and gums due to their inflexible design, limiting effective cleaning.

Innovation Solution

The oral care implement features a head with a base structure that includes a U-shaped cross-section and resiliently connected cleaning elements, allowing for movable support above the base structure, enabling flexible movement and improved adaptation to oral surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If cleaning elements are rigidly attached to the toothbrush head, then structural stability is improved, but adaptability to complex oral contours deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidadaptability to oral contours
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The cleaning element carrier is made movable relative to the head base structure through resilient means (springs), allowing the carrier to dynamically adjust its position and orientation. This enables the cleaning elements to adapt to complex oral contours while the rigid base structure maintains overall stability during brushing operations.

Inventive Principle:
Principle #15Dynamics

2Ease of manufacture

If cleaning elements are rigidly attached to the toothbrush head, then manufacturing simplicity is improved, but cleaning efficacy on intricate surfaces deteriorates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidcleaning efficacy
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The movable carrier design allows cleaning elements to dynamically conform to intricate tooth and gum surfaces, significantly improving cleaning efficacy. The resilient means provide automatic adjustment without complex mechanisms, maintaining reasonable manufacturing simplicity while achieving superior cleaning performance on complex oral contours.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If cleaning elements are movably supported above the base structure, then adaptability to oral contours is improved, but device complexity increases

Engineering Contradiction:
Improveadaptability to oral contoursVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The carrier is made movable relative to the head base structure through resilient means (springs), allowing the cleaning elements to dynamically adjust their position and orientation. This enables the cleaning elements to adapt to complex oral contours while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Resilient means (springs) act as intermediary elements between the rigid base structure and the movable carrier, providing the necessary flexibility and movement while maintaining structural integrity. This intermediary mechanism enables adaptability without requiring complex articulated joints or multiple moving parts.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This design enhances cleaning efficacy by allowing the tooth cleaning elements to pivot and translate, better conforming to the intricate contours of teeth and gums, thereby improving oral hygiene.

Implementation Method 1

A mass formed of a resilient material is positioned within the passageway

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2819543B1Oral care implement
Publication Date: 2016.11.16 COLGATE PALMOLIVE CO
  • EP2819543B1 patent drawingFigure 1~2
  • EP2819543B1 patent drawingFigure 3A~3B
  • EP2819543B1 patent drawingFigure 3C

AI summary

An oral care implement having a head that achieves an enhanced cleaning action during brushing. In one embodiment, the invention can be an oral care implement comprising: a handle; a head connected to the handle and comprising a base structure ( 130 ) having a front surface ( 131 ), a rear surface ( 132 ), an island protruding from the rear surface of the base structure, and a passageway extending through the base structure from the front surface of the base structure to a rear surface of the island; a resilient soft tissue cleanser ( 170 ) on the rear surface of the base structure, the resilient soft tissue cleanser comprising an aperture through which the island extends; a mass ( 180 ) of a first resilient material positioned within the passageway so that a first portion ( 181 ) of the mass protrudes from the front surface of the head and a second portion ( 182 ) of the mass protrudes from the island, the island isolating the resilient soft tissue cleanser from the mass; and a plurality of teeth cleaning elements ( 105 ).