jason hegedus greg mikus josh miller evan schwartz 10/14/2008
TRANSCRIPT
Jason HegedusGreg MikusJosh Miller
Evan Schwartz10/14/2008
Problem Statement
Conceptualization: assessment of customer needs and the resulting weight of importance
Preliminary Design: brainstorming, sketches, re-design concepts
Detailed Design: CAD drawings, detailed sketches and dimensions
Production: bill of materials, engineering analysis
1. Appropriateness for children 1.1 Color schemes 1.2 Lightweight 1.3 Music playback 1.4 Timed operation 2. Battery Life 2.1 Re-chargeable battery 2.2 Stand that charges battery 2.3 Battery indicator3. Adjustability 3.1 Varying speeds 3.2 Interchangeable heads 3.3 Flexible head/neck4. Efficiency 4.1 Easy maintenance 4.2 Uses own charger 4.3 Operates for exact period of timeRetails under $15
Focus our goals on our target consumers, children ages 4-8.
Based on our assessment of the most valuable customer needs, we must refine our concepts to gear our design towards appropriateness for children and efficiency.
Our toothbrush will have design features such as a timed song, a re-chargeable battery, and a functional stand to accompany our toothbrush.
The 5 most important re-designed aspects of our toothbrush included:
Timed song Re-chargeable battery Bristle structure suitable for children Ergonomics for children Tongue scrubber
Timed Song: Button that plays music for 2 minutes (the amount of time which should be spent brushing teeth)
Re-chargeable battery built in to bottom which can be docked in the docking station that is included in our toothbrush
Bristle structure is small and closely knit to better accommodate the size of children’s teeth.
Reduced overall size to account for the size of a child’s hand. The handle is ergonomically friendly and comfortable.
Back of the neck of the brush also serves as a tongue scrubber to eliminate bacteria on the tongue.
FUNCTION ART
Circular bristles pivotally mounted to head of brush
Bristles oscillate along axis
Circular front, rectangular rear bristles
Removable music box which attaches to toothbrush
Harnesses toothbrush and head attachments
Electrically Driven Toothbrush
US005625916A US006179579B1 US005524312A
Musical Toothbrush
US005259086A
Stand and Storage US00D363605S
Efficiency Adjustability Appropriateness Weight Total Relative Order
Efficiency 1 3 0.2 0.25 4.45 0.157
Adjustability 0.33 1 0.167 0.33 1.827 0.065
Appropriatness 5 6 1 1 13 0.46
Weight 4 3 1 1 9 0.318
Concept Efficiency Adjustability Appropriateness Weight Sum Rank
Relative Order 0.157 0.065 0.46 0.318
Concept 1 B A S E 0 3
Concept 2 1 0 -1 0 -0.303 5
Concept 3 1 1 0 -1 -0.096 4
Concept 4 0 -1 1 0 0.395 1
Concept 5 1 1 0 0 0.222 2
Concept Efficiency Adjustability Appropriateness Weight Sum Rank
Relative Order 0.157 0.065 0.46 0.318
Concept 1 -1 0 1 0 0.303 1
Concept 2 B A S E 0 5
Concept 3 0 1 1 -1 0.207 3
Concept 4 -1 0 1 1 0.208 2
Concept 5 0 1 1 -1 0.207 3
Concept Efficiency Adjustability Appropriateness Weight Sum Rank
Relative Order 0.157 0.065 0.46 0.318
Concept 1 -1 -1 0 1 0.096 3
Concept 2 0 -1 -1 1 -0.207 5
Concept 3 B A S E 0 4
Concept 4 -1 -1 1 0 0.238 2
Concept 5 0 0 0 1 0.318 1
Concept Efficiency Adjustability Appropriateness Weight Sum Rank
Relative Order 0.157 0.065 0.46 0.318
Concept 1 -1 -1 0 0 -0.222 2
Concept 2 1 0 -1 0 -0.303 5
Concept 3 0 1 0 -1 -0.253 3
Concept 4 B A S E 0 1
Concept 5 0 1 0 -1 -0.253 3
Concept Efficiency Adjustability Appropriateness Weight Sum Rank
Relative Order 0.157 0.065 0.46 0.318
Concept 1 -1 -1 0 1 0.096 3
Concept 2 1 -1 -1 1 -0.05 5
Concept 3 0 0 1 0 0.46 2
Concept 4 -1 -1 1 1 0.556 1
Concept 5 B A S E 0 4
Material Qty Per Toothbrush Cost/unit
Bristle Heads 3 $0.05
Polythylene Body .150024 lbs $ 2.80/lb
Motor 1 $0.50
Button 2 $0.62
Re-chargeable Battery
1 $3.30
Charger Stand 1 $1.80
TOTAL $7.69
Our problem statement originally estimated a retail cost of under $15.
In the bill of materials we calculated a per unit production cost of $7.69.
If we charge the projected $15, we would make a profit of $7.31, minus the cost of shipping and packaging.
For these reasons, we feel that the toothbrush’s cost suits the demand of customers, and has a reasonable cost of production.
We as the united team of America feel that we have successfully redesigned an electric toothbrush to fit the needs of children from ages 4 to 8.
Redesign: • Cost effective• Timed song• Re-chargeable battery• Charging stand
We were able to incorporate our ideas and concepts into a ergonomic, cost-effective, and functional design.