electric toothbrush re-design february 22, 2013
Post on 24-Feb-2016
31 Views
Preview:
DESCRIPTION
TRANSCRIPT
Electric Toothbrush Re-designFebruary 22, 2013
Mike DeLancey
Molly Streiff
Emily Evanchak
Kenan Sindi
Outline
• Customer Needs• External Search• Concept Generation• Concept Selection• Final Design
Project Management
Hierarchal Customer Needs List
From our initial problem statement, the team had
the goal of making the toothbrush as reusable as
possible. After taking the surveys of toothbrush
users, however, we found that the most important
thing they are looking for is cost and then aesthetic
appeal . The new goal of the design is to make the
electric toothbrush as cost friendly to the consumer
as possible. The reusability was also found to be
important in a consumer’s decision to purchase a
toothbrush.
Revised Problem Statement
External Search Activities• Patent Search
• Product Archaeology
• Benchmarking
Features Oral-B AdvancePower 400
Arm & Hammer Spinbrush Pro Clean
Philips Sonicare Xtreme E3000
Oral-B 3D White Action
Brushpoint Vital Health Sonic Power
Cost $12.99 $17.75 $29.97 $16.97 $11.99
Appealing Ergonomically designed with a non-slip grip
Comes in blue & red
Contoured ergonomic shape
Blue thin design
Metallic blue slim handle design
Reusability
Replaceable tops – 2 AA batteries
Replaceable tops – rechargeable batteries
Replaceable tops – 2 AA batteries
Replaceable tops – rechargeable batteries
Replaceable tops – 1 AA battery
Size (L x W x H)
(7 x 4 x 2in) (3.25 x 4.5 x 11.0in)
(10.2 x 1.0 x 1.25in)
(8.858 x 2.244 x 3.11in)
(9.45 x 4.33 x 2.28in)
Special Features
1- indicator bristles2- interdental tip bristles
1- Duel brushing2- Micro-cleaning bristles3- compact charging base
1- 2-mins timer2- adjustable head3- safe to use with braces/brackets4- patented sonic technology
1- rubberized bristles2- action cup brush head3- dual brushing
1- floss heads2- sulcus tips3- gum stimulator4- sonic power cleaning
Brush Head
Ninja Turtle Head. Kid Friendly/Turtle Lovers/Karate Specialists.
Dual cleaning technology
Rotates one direction on the outside and the opposite on the inside.
Standard rotating head with tongue cleaners
Top section spins and bottom section shakes
Body Design
Square base, can stand upright
Has pointed end and slimmer body
Grip wrapped around toothbrush with side of brush
ribbed to perfectly fit hand
Tongue cleaner, grip wrapped around sides and back, body same width as neck
Bubbled body with grip wrapped around body with
tiny circles on it as extra grip
Power Generation
Chargeable base that plugs into wall with cord and store
toothbrush.
Chargeable base that plugs into wall
Energy Mechanism for Brush Head
Rotating GearsSpring loaded lever that flips down, rotating mechanism pushes lever up. Creates a back and forth rotating motion
Morphological Chart
Morphological Chart
Criteria for Concept Selection
Comparison Criteria
EvaluatedAppealing Size Special
Features Reusability Cost Total Weight
Appealing 1.00 7.00 5.00 3.00 0.20 16.20 0.27
Size 0.14 1.00 0.20 0.20 0.11 1.65 0.03
Special Features
0.20 5.00 1.00 0.33 0.14 6.68 0.12
Reusability 0.33 5.00 3.00 1.00 0.20 9.53 0.16
Cost 5.00 9.00 7.00 5.00 1.00 27.00 0.42
Table 4. AHP Table
Pugh Charts:Brush Head Design
Appealing Size Special features
Reusability
Cost Sum Rank
Relative Weight 0.27 0.03 0.12 0.16 0.42
Concepts:
Ninja Turtle +1 -1 +1 0 -1 0.06 6
Dual Cleaner +1 +1 +1 0 +1 0.84 1
Double Rotator +1 +1 -1 0 +1 0.72 2
Standard w/ Tongue Cleaner
+1 +1 +1 0 -1 0.42 4
Double Head - - - - - 0 5
Giraffe Head +1 -1 -1 0 +1 0.54 3
Appealing Size Special features
Reusability Cost Sum Rank
Relative Weight
0.27 0.03 0.12 0.16 0.42
Concepts:
Spring Loaded
- - - - - 0 2
Gears +1 -1 +1 +1 +1 0.94 1
Pugh Charts:Energy Mechanism for Brush Head
Appealing Size Special features Reusability Cost Sum Rank
Relative Weight 0.27 0.03 0.12 0.16 0.42
Concepts:
Pointed End +1 +1 +1 +1 +1 1 1
Grip Hand Fit +1 +1 +1 -1 -1 -0.16 6
Bubble Body +1 -1 +1 +1 -1 0.1 4
Square Base - - - - - 0 5
Standard w/ Tongue Cleaner
-1 +1 -1 +1 +1 0.22 2
Giraffe Body +1 +1 +1 +1 -1 0.16 3
Pugh Charts:Body Design
Appealing Size Special features
Reusability Cost Sum Rank
Relative Weight 0.27 0.03 0.12 0.16 0.42
Concepts:
Plug in Charger +1 +1 +1 -1 +1 0.68 3
Chargeable Base +1 -1 +1 +1 +1 0.94 1
Bottom Button Cap
-1 -1 -1 -1 +1 -0.16 6
Two AA Batteries
- - - - - 0 5
Single AA Battery
+1 +1 -1 -1 +1 0.44 4
Two AAA Batteries
+1 +1 -1 +1 +1 0.76 2
Pugh Charts:Power Generation
Sketch and Details of Final Design
CAD drawings of final design
How does it work?
• Chargeable Station
• Electrical Energy is transformed into Chemical and then Mechanical Energy
• Gears turn the brush head
Concluding remarksEach part of our re-design was specifically selected based on..• Cost• Aesthetics• Reusability• size• special features
KEY DISCOVERY: Perfection is possible.
top related