DESIGN PROJECT I: Electric Toothbrush Kara Morgan, Valentine Asalu, Joe Gray, Alex Morgan OCTOBER 10, 2012

Concept Generation Customer Needs Assessment External Search 1.Labs 1 & 2 2.Patent Search 3.Product Archaeology 4.Benchmarking

Concept Generation (cont.) Morphological Charts Pugh Charts

Project Management (collective) Customer Needs Assessment Labs 1 & 2 Concept Generation Concept Selection

Product Management (specialized) AlexProduct Archaeology Pugh Charts KaraCustomer Needs Morphological Charts ValentineProduct Benchmarking Problem Statement JoePatent SearchSolid Works Design

Hierarchical Customer Needs Figure 1. AHP Pairwise Comparison Chart to Determine Weighting for Main Objective Categories Figure 2. AHP Pairwise Comparison Chart to Determine Weighting of Quality Sub- Objectives

Revised Problem Statement After having assessed the niche “green” market, the design team has identified the key consumer demands to be included in the final concepts of the electric toothbrush redesign. Ultimately, we will employ these demands in order to produce a final product that is more sustainable with regards to both customer satisfaction and environmental conscientiousness. In particular, based on the assessment of the market demands, the project will proceed with particular emphasis on the aspect of quality, namely effectiveness, the category and sub- category of which were proven to be the most critical features according to the consumers surveyed.

Benchmarking/Patent Searches We based our searches on three criteria; Cleaning, Packaging, Aesthetics. We researched different companies to see what patents and designs they already had on the market.

Benchmarking/Patent Searches: The Gillette Company US 7, 636, 977 B2 Jan. 26, 2010 US 3,220,543 Nov. 30, 1965

Benchmarking/Patent Searches: Colgate-Palmolive Company US D475,529 S June 10, 2003 US D476, 157 S Jun. 24, 2003

Benchmarking/Patent Searches: Phillips Company US 6,463,615 B1 Oct. 15, , 836, 030 Nov. 17, 1998

Brush Head Design Concepts

Human Factors Body Design

Power Generation and Power Accessories

Energy Mechanism for Brush Head

Concept 1: Has jet stream of water to wet the toothpaste. None of the bristles rotate Concept 2: One of the bristles rotate in a circular motion while the other set of bristles move in a lateral motion. Concept 3: The brush has toothpaste dispenser built into it.

Previous Concepts Accepts energyStores energy Chemical (battery) Electrical Top-loaded battery compartment Bottom-loaded battery compartment (with battery cap) Flip-open central battery compartment Rechargeable battery unit Wall outlet Power Generation and Power Supplies

Previous Concepts Body thickness Grip shapeGrip location Slim Bulky Smooth Form-fitted Front Back Side Human Factors Body Design On/off mechanism ButtonsLocation Switch Button One button Two buttons No buttons Front Back Side

Previous Concepts Brush head functionMotionRotation Rotational Linear Rotational Linear Full rotation Partial rotation No rotation Energy Mechanism for Brush Head (function)

Previous Concepts Number of headsShape combinationsOrientation One head Two heads Three heads Circular Rectangular Circular and non-circular Circular and circular Circular and two rectangular Two circular and one rectangular Three circular Angled Linear Brush Head Design

Concept Selection 4 Factors - environmentally friendly - quality - cost - comfort

Body Design Pugh Chart

Results BodyGripGrip Location # of ButtonsButton Location Concept 4SlimForm FittedFront2

Energy Mechanism Brush Head Pugh Chart

Results MovementDefined Movement Concept 1RotationalFull Rotational

Power Generation Pugh Chart

Results TypeType Detail Concept 4ElectricalWall Outlet

Brush Head Design Pugh Chart

Results # of headsHead TypeAngled? Concept 22Circular & non- circular Yes

Final Design Power Generation Electrical source (wall outlet) Power Accessories Charging station Energy Mechanism for Brush Head One fully rotational head One linear head Brush Head Design 2 Heads One round, one rectangular Slightly angled for effectiveness Human Factors Body Design Slim body Form fitted Front grip (frontal grooves) Two buttons on front

Final Design (excluding bristles)

Final Design 1. Angled toothbrush heads 2. Circular fully rotational head 3. Rectangular linear head 4. On button 5. Off button 6. Form fitted grips 7. Rechargeable location

Final Design MultiView

Final Design Dimensions Top View Side View Front View

How Does it Work? Our finalized product is designed to eliminate the complications associated with electric toothbrushes. Activation begins after pressing the on button, and activity concludes either after 2 minutes or after the off button is pressed. Simultaneously, the brush heads work together in order to eliminate plaque from teeth. -One rotational and one linear moving head will ensure that tooth cavities will be penetrated and a necessary surface area can be covered. -They are also set at a slight angle to increase penetration Power is generated from electrical power source. -Toothbrush charges while sitting upright in a charging station.

Final remarks Does final product address customer needs? o Comfort o Environmentally sound o Convenience o Quality  Durable replacement parts  Mechanically durable  Lasting charge life  Effectiveness