jocelyn connolly seth gregor chris gigliotti soyeon jeon october 7 th, 2011
TRANSCRIPT
PROJECT ONE:TOOTHBRUSH REDESIGN
Jocelyn ConnollySeth GregorChris GigliottiSoyeon JeonOctober 7th, 2011
TimelineI. Introduction
1. Initial problem statement
2. Mission statement
II. Customer needs assessment 1. Customer needs list
2. Weighting of customer needs
III. Revised problem statement
IV. External Search
1. Literature review
2. Patent search
3. Benchmarking
4. Product dissection
5. Design target
V. Concept Generation
1. Concept generation
VI. Concept selection
VII. Final Design
Project Management
Redesign better toothbrush
Project timeline 18 days Team member
duties Revisions Closing
Customer Needs
Revised problem statement:
• Reduce noise vibrations with rubber casing
• Change from rotary to rotary/oscillating/vibrating
• One-button power switch
• Bristle variety
1. Portable (.07)
1.1 Lightweight 1.2 Small 1.3 Battery included 1.4 Thin 1.5 Retractable2. Durable (.19) 2.1 Will not easily break 2.2 Waterproof3. User friendly (.14) 3.1 Safe 3.2 Easy to turn on/off 3.3 Ergonomic 3.4 Low noise 3.5 Replaceable head 3.6 Comfortable grip 3.7 Safety switch 3.8 Appealing4. Cleaning effectiveness (.47) 4.1 Variety of bristles (.17) 4.2 Tongue scrub (.06) 4.3 Oscillating(0.26) 4.4 Mouthwash dispenser (0.02) 4.5 Fast (0.18) 4.6 Long battery life (0.31)5. Low Cost (.13)
External Search
Customers value cleaning effectiveness most
Researched strengths and weaknesses of electric toothbrushes Oscillating/pulsating toothbrush cleans
better than high frequency toothbrush (Sonicare Plus Vs. Braun Oral-B 3D Plaque Remover)
Concept 1- Power Switch
• One button switch
• Embedded in a flat-round bottom
• Prevents accidental turn-on
• User-friendly
Concept 2- Energy Mechanism
• Shaft and 2 gears
• Allows 2 different motions (oscillating, rotating)
• Low cost
Concept 3- Brush Head
• 2 small circular brushes
• Lightweight (portability)
• Efficient and effective cleaning
MORPHOLOGICAL CHART
Function/MeansBrushheadBody/GripPower GenerationEnergy MechanismBristlesNeck designBase designCleaning ExtrasPower Switch1 1 big circularrubber grip1 AA ElectromagneticsSoft nylon with different lengthsRetractable neckRectangular flat bottom Tongue scrubButton switch2 2 small circularErgonomical grip to fit hand2 AA Shaft and 2 gearsNylon and soft rubber with different lengthsPartial rubber neckRounded bottomMouth wash dispenserFlip switch3 1 big rectangularHole in back2 AAA Shaft and gearLong bristlesThin Flat bottom with on/off switchUV light for killing germsSensor 4 1 small circle 1 small rectangleLeft/Normal gripRechargable Vibrating RodCross-action bristlesPlastic neckOval Flat bottomLight to see in your mouth2 button power switch
Pugh Charts
Durability (.19) Portability (.07) Low cost (.13) Cleaning
effectiveness (.47) User-friendly (.14)
Functions
AA-battery for power One button to turn on/off Shaft and two gears Bristles Tongue Scrub Grip