Design Project #1:Electric Toothbrush

Mike GavalekAdam Jackson

Matt Murphy

10/3/2011

Design Activities

Customer Needs Assessment◦Weighting

External Search◦Literature Review◦Patent Search◦Benchmarking◦Product Dissection

Concept Generation and Selection

Final Design

1. Portable 1.1 Small 1.2 Light F.1 Collapsible 2. Effectiveness 2.1 Allergenic F.2 Oscillation 3. Durable 3.1 Easy maintenance 3.1.1 Fast recharge time C.1.1 Replaceable parts 3.1.2 Ease of cleaning 4. User friendly 4.1 Low noise F.3 Large buttons 4.2 Easy instruction C.2 Safe C.3 Different Adapters 4.3 Color C.4 Price

Project Management

Mike◦Dissection◦Lab Report◦FFM Report◦External

Search◦Concept

Generation

Adam◦Dissection◦Lab Report◦External

Search◦Concept

Generation

Matt◦Dissection◦Project

Report◦Concept

Generation

Problem Statement and Hierarchal Customer Needs Chart

Compact Size◦Collapsible◦Cavity for Head

Power Supply◦Transformer◦Multiple Cord

AdaptersAdaption to User

◦Color Choices◦Low Noise

1. Portable (0.3, 0.3) 1.1 Small (0.2, 0.67) 1.2 Light (0.1, 0.33) F.1 Collapsible 2. Effectiveness (0.16, 0.16) 2.1 Allergenic (0.16, 1.0) F.2 Oscillation 3. Durable (0.24, 0.24) 3.1 Easy maintenance (0.24, 0.24) 3.1.1 Fast recharge time (0.16, 0.67) C.1.1 Replaceable parts 3.1.2 Ease of cleaning (0.08, 0.33) 4. User friendly (0.3, 0.3) 4.1 Low noise (0.21, 0.7) F.3 Large buttons 4.2 Easy instruction (0.045, 0.15) C.2 Safe C.3 Different Adapters 4.3 Color (0.045, 0.15)

C.4 Price

External Search Summary

Literature Review◦Crossaction Power Recommended◦Good Clean, Loud Motor

Patent Search◦Collapsibility, Rechargeable, Low Noise, Brush

Head DesignBenchmarking

◦Tied for Second Among Products ExaminedProduct Dissection

◦Motor Noise, Removable Head, Oscillation Technique

Sketch #1

Sketch #2

Sketch #3

Sketch #4

Sketch #5

Sketch #6

Morphological Chart

Brush head Body/ Grip Power Generation Energy Mechanism

1Large out ring with a inner oscillating bristle

Large Rubber Grip from the bottom of the neck to 1" above the bottom

Solar Power Panels on the Back of the Toothbrush

Gear and shaft where the gears would be able to bend on it.

2Two brush head that has up and down motion

Angling of the neck for different brushing positions

retractable Power cord from the bottom

dual pin lock connection from motor to shaft

3Two brush heads with two oscillating motion

Cavity specifically for the thumb

recharge dock with magnetic panels

Magnetic Repulsion motor

4360 rotation tooth brush head

The shape will have a round handle and spherical bottom with a cavity for the collapsable neck and head

Overdrive Mode

shaking metal cylinder surrounding with metal coil for power

5four small square toothbrush heads

Using clear casing for better view of the parts

port for recharge cable but having the cord be attached to the toothbrush

Motor placed in the shaft of the Toothbrush

6 Tongue scrubThe location of the on/off switch will

be in the back1 AA battery

Hand Crank powered

Morpholgical Chart