Champion Toothbrush-Team 8

Evan Bedel, Jordan Janinek, Sam Schmucker, Matt McClernand

10/10/12

Customer needs assessment- Matt

Power/noise analysis- Sam and Evan

Product dissection- Team External search- Jordan Concept generation- Team Morphological chart- Matt and

Jordan Pugh chart- Sam and Evan Final design- Team

Sequence of Design and Project Management

1. Cost- .2882. Cleaning ability of brush- .2813. Durability of brush- .2424. Professional

recommendation- .09845. Appearance- .0686. Technology- .0227

Customer Needs

Based on our survey results, we concluded that customers are only willing to pay between $10-$20 for an electric toothbrush. Also, customers were more interested in an aesthetically pleasing toothbrush.

Revised problem statement- Our assessment of our original toothbrush told us that we needed a more sustainable battery along with new brush heads and we wanted to make it more aesthetically pleasing. Most of these characteristics can be accomplished through a new design of the toothbrush. Our problem now will be to construct a better and more efficient toothbrush based on our assessment and redesign process.

Customer Needs Part 2

Through our external searches, we determined different parts to the toothbrush that have been designed before and could be used for our design.

Benchmarking helped us understand the strengths and weaknesses of the different toothbrush out on the market.

External Search

Power Generation Concepts

Brush Head Design Concepts

Energy Mechanism Concepts

Human Factors Concepts

Power Generation & Accessories

Brush Head Design

Energy Mechanism

Human Factors Body Design

Batteries 2 circular spinning heads

Opposite spin direction

Dumbbell shape

Rechargeable Batteries

One spinning head and one vertical movement head

Ribbed Rubber band

Convex

Rechargeable Deck 3 circular heads that surrounds head

Slide above, rotate below

Grooves on back

    Rotate above, slide below

 

Morphological Chart

Human Factors Size Cost Weight Comfort Total Rank

Weighting 0.15 0.4 0.2 0.25

Concepts

Iteration 1• Dumbbell 0 0 0 0 0 2• Convex 1 1 -1 -1 0.1 1• Grooves 1 -1 -1 1 -0.2 3

Iteration 2• Dumbbell -1 -1 1 1 -0.1 2• Convex 0 0 0 0 0 1• Grooves 1 -1 -1 1 -0.2 3

Pugh Charts

Final Design

Head technology- two reserve spinning circular heads Energy mechanism- two ribbed rubber bands spun by

motor that is attached each head, which are both on their own pivot points

Power generation- rechargeable deck for toothbrush to charge in when not in use that is plugged into a wall outlet

Body design- convex for easily fitting into the hand of the user and a switch for easier on/off ability; timer that counts down from two minutes when you turn it on

How does it work?

Cost was a main consumer concern, so we took measures to reduce cost We found that the rechargeable deck is not much more expensive than

normal battery power, and is much less expensive in the long run for the consumer

For the energy mechanism, our durable rubber bands will be less expensive to produce than the metal rods in the standard toothbrush

The bands will also cause a smoother rotation for better cleaning ability along with the dual brush heads, which satisfies the customers need for better cleaning ability

Timer makes sure that customer knows how long to brush teeth so that they can get a good clean

The convex handle design and on/off switch add to the aesthetics and the ease of use

Concluding Remarks