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

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

3. Concept Generation (cont.)
Morphological Charts
Pugh Charts

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

5. Product Management (specialized)
Alex
Product Archaeology
Pugh Charts
Kara
Customer Needs
Morphological Charts
Valentine
Product
Benchmarking
Problem Statement
Joe
Patent Search
Solid Works Design

6. 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

7. 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.

8. 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.

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

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

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

12. Brush Head Design Concepts

13. Human Factors Body Design

14. Human Factors Body Design

15. Power Generation and Power Accessories

16. Power Generation and Power Accessories

17. Energy Mechanism for Brush Head

18. 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.

19. 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

20. 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

21. 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

22. 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

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

24. Body Design Pugh Chart

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

26. Energy Mechanism Brush Head Pugh Chart

27. Results
Movement
Defined Movement
Concept 1
Rotational
Full Rotational

28. Power Generation Pugh Chart

29. Results
Type
Type Detail
Concept 4
Electrical
Wall Outlet

30. Brush Head Design Pugh Chart

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

32. 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

33. Final Design(excluding bristles)

34. Final Design Angled toothbrush heads Circular fully rotational head
Rectangular linear head
On button
Off button
Form fitted grips
Rechargeable location

35. Final Design MultiView

36. Final Design Dimensions
Side View
Front View
Top View

37. 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.

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