Opening up
THE ELECTRIC CAN OPENER Samantha Niver Charles Hunter Richard Kim Michael George Chris Borchers
Introduction
Testing
Disassembly
Sustainability
Evaluation
INTRODUCTION Electric Can Opener! Function: Tool to open cans automatically Customer: Chefs everywhere!
Home
use
Discussion
Introduction
Testing
MODEL: CCO-40BC $19.95
CUISINART
Disassembly
Sustainability
Evaluation
Discussion
MODEL: ENSEMBLE $27.99
HAMILTON BEACH
Introduction
Testing
Disassembly
Sustainability
Evaluation
Discussion
KEY FEATURES HAMILTON BEACH
CUISINART
One-touch start Grindstone
Auto-shut off Magnetic lid holder
Retractable cord
Removable blade assembly One-year limited warrantee
Non-slip pads
Guiding post
Three-year limited warrantee
Introduction
Testing
Disassembly
Sustainability
Evaluation
PRODUCT SPECS Hamilton Beach
Cuisinart
Outer Gear Diameter
0.67”
0.67”
Blade Length
0.4”
0.4”
Cord Length
2’ 6.3”
2’ 6.8”
Max Exterior Height
9.3”
9”
Max Exterior Width
4.9”
4.7”
Max Exterior Depth
3.8”
4.7”
Package Height
9.9”
10.1”
Package Width (face)
5.4”
5.5”
Package Depth (side)
5.4”
5.3”
2.5 lbs
2.2 lbs
Appliance Weight
Discussion
Introduction
Testing
Disassembly
TESTING
Qualitative Survey Personal
observation
Quantitative Magnet
strength Exterior gear speed Activation Force
Sustainability
Evaluation
Discussion
Introduction
Testing
Disassembly
Sustainability
Evaluation
Discussion
SURVEY RESULTS
Hamilton Beach
Cuisinart
Visual appearance of appliance
4.10
3.75
Visual appeal of packaging
3.65
3.75
Ease of use
3.90
3.70
Perceived durability
4.00
3.60
Safety (blade)
4.75
4.70
Overall
4.08
3.90
Customer rated on a 1-5 scale 8/20 people had used an electric can opener before 15 people gave extra features low importance, 4 high, 1 medium 14 preferred Hamilton Beach, 6 preferred Cuisinart
Introduction
Testing
Disassembly
TESTING RESULTS
Magnet Strength
Exterior Gear Speed
Cuisinart: 2.5 N Hamilton Beach: 1.6 N
1.62 inches / second 0.77 revolutions / second
Activation Force
Cuisinart: 13.38 N-m Hamilton Beach: 6.73 N-m
Sustainability
Evaluation
Discussion
Disassembly Introduction
Motor Assembly Testing
Housing Sustainability Disassembly Gear Assembly Blade Assembly Evaluation Product Discussion
DISASSEMBLY Motor assembly Gear assembly Blade assembly Housing
Disassembly
Motor Assembly
Gear Assembly
MOTOR ASSEMBLY
Blade Assembly
Product Housing
Disassembly
Motor Assembly
Gear Assembly
Blade Assembly
Product Housing
MOTOR ASSEMBLY Rotor Bracket
Rotor
Copper Coils
Copper Ring
Heat Sink
Current fed into coils Coils create magnetic flux Coils cause phase flux delay Creates rotating magnetic field Rotates rotor according to the right hand rule
Disassembly
Motor Assembly
Gear Assembly
Blade Assembly
Product Housing
C-FRAME SHADED POLE MOTOR Inexpensive Long life Low starting torque Low efficiency Single phase AC Typical Applications: fans, small appliances
Disassembly
Motor Assembly
Gear Assembly
GEAR ASSEMBLY
Blade Assembly
Product Housing
Disassembly
Motor Assembly
Gear Assembly
GEAR ASSEMBLY Spur Gear
Idler Gear
Pinion Gear (Underneath) Rotor Gear
Blade Assembly
Product Housing
Disassembly
Motor Assembly
Gear Assembly
COMPONENTS
Straight and helical gears Speed reduction through gears Connect to exterior feed gear and blade assembly
Blade Assembly
Product Housing
Disassembly
Motor Assembly
Gear Assembly
Blade Assembly
Product Housing
DIFFERENCES IN GEAR ASSEMBLY Lubrication Motor gear orientation Material type Gear thicknesses Attachment of spur gear with feed gear
Removable
cleaning
feed gear with Hamilton Beach for
Disassembly
Motor Assembly
Gear Assembly
BLADE ASSEMBLY
Blade Assembly
Product Housing
Disassembly
Motor Assembly
Gear Assembly
Blade Assembly
Product Housing
CUISINART BLADE ASSEMBLY
Basic design Bar to prevent arm over rotation Holds can in place using magnet and pressure between blade and gear One-touch auto start Auto-shutoff Removable blade assembly
Disassembly
Motor Assembly
Gear Assembly
Blade Assembly
Product Housing
HAMILTON BEACH BLADE ASSEMBLY
Special features Adjustable blade arm Three-prong blade assembly lock Magnet strength and degrees of freedom More precise button pressing tool Feed gear attached
Disassembly
Motor Assembly
Gear Assembly
Blade Assembly
HOUSING Front
Back
Product Housing
Disassembly Introduction
MotorTesting Assembly
Housing Gear AssemblySustainability Blade Assembly Disassembly Evaluation Product Discussion
HOUSING COMPARISON CUISINART
HAMILTON BEACH Grindstone
Ventilation Guiding post
Internal Button Bullet shaped
External Button Connected with screws Rectangular shaped
Chrome finish Plastic Cord storage
Rubber stoppers
Introduction
Testing
Disassembly
EXPLODED VIEW
Cuisinart : 30 parts Hamilton Beach : 39 parts
Sustainability
Evaluation
Discussion
Introduction
Testing
Disassembly
SUSTAINABILITY Similar expected product life No snap fits Cuisinart has less parts Cuisinart is more sustainable
Aesthetic
sacrifices
Sustainability
Evaluation
Discussion
Introduction
Testing
Disassembly
Sustainability
Evaluation
Discussion
KEY ASPECTS OF DESIGN Common Design Aspects
Auto-stop Spring-loaded lid magnet
Cuisinart
Blade assembly connection key
Hamilton Beach
Blade assembly lock Removable feed gear and blade assembly
Introduction
Testing
Disassembly
SUGGESTIONS FOR IMPROVEMENT
Automatic retractable cord Snap fits Quieter operation
Cuisinart
Improve aesthetics
Hamilton Beach
Balance aesthetics and functionality
Sustainability
Evaluation
Discussion
Introduction
Testing
Disassembly
Sustainability
CONCLUSION
Cuisinart Simpler Same
performance, lower
cost More sustainable
Customers not always right? Survey
results
Evaluation
Discussion
Introduction
Testing
Disassembly
Sustainability
Evaluation
Discussion
DISCUSSION For this product which is more important, cost or aesthetics? Is simplicity or complexity preferred when executing a simple task? In the kitchen, is it important to design a product that can perform more than one task? What design features would you want in your ideal can opener?