Group 7’s Toothbrush

Kenny MyersAbdullah Al Bassam

Ryan BurkeIan Fitzsimmons

Outline

Assembly

Prototype Testing Product finalization

Concept GenerationDetailed Designs Material Selection

ResearchLiterature and Patent Customer Inquires

0.1 Begin Project

1.1 Interview users to establish requirements

1.2 Literature Search

1.3 Patent Searches

1.4 Revise Problem Statement

2.1 Project dissection and benchmarking

2.2 Internal work for concept generation

2.3 Generate concepts

2.4 Select promising concept(s)

3.1 Detailed Design

3.2 Material selection/availability

3.3 Technical Drawings

4.1 Purchase materials and off the shelf components

4.2 Assemble Prototype

5.1 Develop testing protocol

5.2 Perform tests

6.1 Preparation of first progress report

6.2 Solid Modeling

6.3 Preparation of final report

6.4 Preparation of final presentation (Poster)

7.0 End Project

0.1 1.1 1.2 1.3 1.4 2.1 2.2 2.3 2.4 3.1 3.2 3.3 4.1 4.2 5.1 5.2 6.1 6.2 6.3 6.4 7

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TOTAL 16   15   17   29   27   24   26   28   30   26

FLOAT 14   15   13   1   3   6   4   2   0   4

Tasks D1 D2 D3

0.1 Begin Project 0 0 0

1.1 Interview users to establish requirements 2 1 0

1.2 Literature Search 14 0 2

1.3 Patent Searches 14 0 2

1.4 Revise Problem Statement 9 3 0

2.1 Project dissection and benchmarking 7 2 0

2.2 Internal work for concept generation 20 0 1

2.3 Generate concepts 21 0 2

2.4 Select promising concept(s) 23 0 1

3.1 Detailed Design 23 0 3

3.2 Material selection/availability 23 0 2

3.3 Technical Drawings 16 0 3

4.1 Purchase materials and off the shelf components 25 0 1

4.2 Assemble Prototype 26 0 2

5.1 Develop testing protocol 26 0 1

5.2 Perform tests 28 0 1

6.1 Preparation of first progress report 16 0 4

6.2 Solid Modeling 26 0 6

6.3 Preparation of final report 30 0 5

6.4 Preparation of final presentation (Poster) 27 0 3

7.0 End Project 35 0 0

Hierarchal customer needs• Portable

– Lightweight– Wireless– Recharge station

• User Friendly– Good grip– Left/right handed– Quiet– Aesthetically pleasing

• Sustainability– Low output– Rechargeable– Durable– Strong bristles– Energy return

• Cost effective– Low-cost materials– Use as little as possible– Keep toothbrush small but usable– Replaceable brush heads

• Safe– Sealed off electric compartment– Bristles are strong but not too stiff– Environmentally friendly

Revised problem statement

After some thought, our team has decided

upon using a more energy efficient approach to our

toothbrush. Although it seems to be lesser in

importance to other factors such as portability or

safety, it is a large issue within today’s society. In

reference to the factors considered more important by

the consumer, they have already been considered.

Other companies have created very portable, user

friendly, safe toothbrushes for the general population.

Using the ideas created by other firms, we can focus

much of our attention to the creation of a more

efficient toothbrush. Ideas to be considered are those

involving rechargeable batteries (for the main point is

to avoid the use of disposable batteries), a

non-bulky/non-cumbersome device, and possible ways

to conserve the rechargeable battery.

External Search ActivitiesPatent/Archaeology ART Chart Brush Detachable Head Handle Design ElectricalBristles US20120227201 Neck US20060010622 Grip US5524312 Motor US20120233789 Rechargeable Battery US7049790

Benchmarking

Patent Date ImprovementUS5524312 June 11, 1996 Circular electric toothbrush with a DC motor to oscillate the brush

head

EP2319359 A1 May 11, 2011 head having bristle tufts implanted therein. At least two of the tufts cross so as to permit at least some the bristles to intermingle.

EP2295006 B1 Nov 14, 2012 a packaged electric toothbrush including a body portion for containing a battery operated motor drivingly connected or connectable to a brush head holder including at least one brush head, wherein the toothbrush includes a "try me" facility for remotely testing the operation of the toothbrush

EP1314401 A1 May 28, 2003 A rechargeable electric toothbrush to recede within a charger

US20120227201 A1 Apr 3, 2012 The center bristle tuft has a first shaped cross section and the outer bristle tufts have a second shaped cross section. The first shaped cross section is different from the second shaped cross section. Applying a force to the center bristle tuft and/or the outer bristle tufts causes the center bristle tuft and/or the outer bristle tufts to deflect into the resilient cushion member

US00D50027S Dec 28, 2004 The ornamental design for an electric toothbrush handle.EP2241283 A2 Oct 20, 2010 A toothbrush head comprises a bristle holder having an attachment

section attached to a hand piece, and drive coupling the bristle holder to a drive arranged on a hand piece

EP1256327 A1 Nov 13, 2002 An electric toothbrush comprising an elongated body portion and a head including a static portion and a moving portion, a handle, and an angled shaft between the head and the handle. The portion of the toothbrush containing the head is detachably connected to the portion of the toothbrush containing the handle.

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Generated Concepts – Energy Mechanisms for Brush Head

• Concept 1– Oscillating brush head

rather than complete rotations

• Concept 2– Magnetic generator core

to increase charge time

• Concept 3– Oscillating bristles for

added efficiency

Generated Concepts – Energy Mechanisms for Brush Head

• Concept 4– Different brushing

modes– Clean, Whiten, Gum

Care, Sensitive Teeth, Polish, etc

• Concept 5– Multi-coloured bristles

that reflect signs of exhaustion/time to change brush heads

Generated Concepts – Power Generation and Power Accessories

• Concept 1– Slow ramping up strength

over a number of sessions to ease electric toothbrush’s induction

• Concept 5– Auto-off mechanism after a

specific period of time (More than 3 minutes)

• Concept 6– Timers

• Overall 2 minute• Specific 30 seconds

Generated Concepts – Brush Head Design

Generated Concepts – Human Factors Body Design

Energy Mechanisms For Brush Head portable user-friendly sustainability cost-effective safe Total Rankweighting 0.1 0.15 0.05 0.2 0.4 ConceptsIteration 1

1 0 -1 -1 1 1 0.4 12 0 1 1 -1 1 0.4 13 0 2

Iteration 2 1 0 -1 -1 1 0 0 12 0 13 0 -1 0 1 -1 -0.35 2

Iteration 3 1 0 22 0 1 1 -1 1 0.4 13 0 -1 1 -1 -1 -0.7 3

• Concept 1: Oscilating Brushhead• Concept 2: Magnetic Core• Concept 3: Oscillating Bristles

Power Generation and Power Accessories portable user-friendly sustainability cost-effective safe Total Rankweighting 0.1 0.15 0.05 0.2 0.4 ConceptsIteration 1

1 0 -1 -1 0 -1 -0.6 32 0 0 -1 0 -1 -0.45 23 0 0 0 0 0 0 1

Iteration 2 1 0 -1 -1 0 1 0.2 22 0 0 0 0 0 0 33 0 0 1 0 1 0.45 1

Iteration 3 1 0 0 0 0 0 0 32 0 1 1 0 -1 -0.2 23 0 1 1 0 0 0.2 1

• Concept 1: Cylindrical Lithium Battery• Concept 2: Wall Charge Port• Concept 3: Timers

Brush Head Design

portable user-friendly sustainability cost-effective safe Total Rank

weighting 0.1 0.15 0.05 0.2 0.4

Concepts

Iteration 1

1 -1 0 -1 0 -1 -0.55 3

2 0 0 1 1 0 0.25 1

3 0 0 0 0 0 0 2

Iteration 2

1 -1 0 -1 -1 -1 -0.75 3

2 0 0 0 0 0 0 1

3 0 0 -1 -1 0 -0.25 2

Iteration 3

1 0 0 0 0 0 0 3

2 1 0 1 1 1 0.75 1

3 1 0 1 0 1 0.55 2

• Concept 1: Floss Head• Concept 2: Different Size Heads• Concept 3: Different Quality heads

Human Factors Body Design portable use-friendly sustainability cost-effective safe Total Rankweighting 0.1 0.15 0.05 0.2 0.4 ConceptsIteration 1

1 0 0 1 1 1 0.65 12 0 0 1 1 1 0.65 13 0 0 0 0 0 0 2

Iteration 2 1 0 0 1 1 0 0.25 12 0 0 0 0 0 0 23 0 0 -1 -1 -1 -0.65 3

Iteration 3 1 0 0 0 0 0 0 12 0 0 -1 -1 0 -0.25 23 0 0 -1 -1 -1 -0.65 3

• Concept 1: Formation to Hand• Concept 2: Grip Pad• Concept 3: Floss attachment

Final Drawings

How it Works

• Magnetic core is energy efficient and increases charge time

• Timer– User friendly – shows

user exactly how long to brush

– Efficient – discourages over-use

• Various heads – User friendly – allows

consumers to easily brush however they like

• Body is fully contoured to hand to increase user-friendliness

Manufactured for the Consumer

• The brush allows the user to interchange heads for a better brushing experience and the handle of the body makes for an easier grip.

• Also shows user how long to brush for• Magnetic core is cost-effective and energy efficient