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

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

Concept Generation (cont.) Morphological Charts Pugh Charts

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

Product Management (specialized) Alex Product Archaeology Pugh Charts Kara Customer Needs Morphological Charts Valentine Product Benchmarking Problem Statement Joe Patent Search Solid 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 D476, 157 S Jun. 24, 2003 US D475,529 S June 10, 2003

Benchmarking/Patent Searches: Phillips Company 5, 836, 030 Nov. 17, 1998 US 6,463,615 B1 Oct. 15, 2002

Brush Head Design Concepts

Human Factors Body Design

Human Factors Body Design

Power Generation and Power Accessories

Power Generation and Power Accessories

Energy Mechanism for Brush Head

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.

Power Generation and Power Supplies Previous Concepts Power Generation and Power Supplies Accepts energy Stores 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

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

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

Previous Concepts Brush Head Design Number of heads Shape combinations Orientation 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

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

Body Design Pugh Chart

Results Body Grip Grip Location # of Buttons Button Location Concept 4 Slim Form Fitted Front 2

Energy Mechanism Brush Head Pugh Chart

Results Movement Defined Movement Concept 1 Rotational Full Rotational

Power Generation Pugh Chart

Results Type Type Detail Concept 4 Electrical Wall Outlet

Brush Head Design Pugh Chart

Results # of heads Head Type Angled? Concept 2 2 Circular & non-circular Yes

Final Design Power Generation Power Accessories Brush Head Design 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 Angled toothbrush heads Circular fully rotational head Rectangular linear head On button Off button Form fitted grips Rechargeable location

Final Design MultiView

Final Design Dimensions Side View Front View Top 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? Comfort Environmentally sound Convenience Quality Durable replacement parts Mechanically durable Lasting charge life Effectiveness