Transcript Document 7715797

Week 6 Deliverables
SofaKing
16 February 2005
Agenda
•
•
•
•
Futon Products
Pairwise Comparisons
Evaluation Matrix
Conclusions
Automatic Futon Frame
• Product:
– Model: The Futonic 1000, 1500, 2000
– Manufacturer: Otis Bed Manufacturing
– May be viewed at:
http://www.futons.net/index.asp?PageAction=VIEWPROD&ProdID=330
2&MMP=1
• Patent
– Title: Automatic Futon Frame
– Patent No: 6,138,299
– Date Granted: October 31, 2000
– Inventor: John Roma, James Stuart
Automatic Futon Frame
• Uses a pair of linear actuators to drive
frame automatically and continuously
• Back connected to frame by upper and
lower follower bearings
• Motor controller mounted under the seat
connected to the actuators
• Dual electric motors fixed at opposite
sides by mounting brackets
Automatic Futon Frame
Futonic Bed in Operation:
http://www.otisbed.com/ftp_only/SHOW.wmv
Standard Wall-Hugger
Re-visiting the Conceptual
Designs
Link-Spring Design
Upright Position
Handle Crank Design
Hydraulic Design
Garage-Door Design
The Lazy-MAN Design
• Acts like an
adjustable car seat
• Pull lever towards
user while seated,
then used body
weight to adjust
reclining angle
• Lock lever into place
Pairwise Comparisons
and
Evaluation Matrix
Criteria
Easy to
manufacture
Easy to
operate
Easy to
maintain
Support
everyday
abuse
Aesthetically
pleasing
Light in
weight
Smooth
operation
Easy to
manufact
ure
Easy
to
operat
e
-
operat
e
-
-
-
-
-
-
-
-
-
-
-
-
Easy to
maintain
Support
everyda
y abuse
Aesthetic
ally
pleasing
Light in
weight
manufact
ure
manufac
ture
aesthetic
s
manufact
ure
Reclin
es
futon
Pushes
to
upright
position
Variable
back
position
s
manufact
ure
moves
from
wall
recline
s
pushes
to
upright
variable
position
s
operate
moves
from
wall
recline
s
pushes
to
upright
operate
smooth
moves
from
wall
recline
s
pushes
to
upright
variable
position
s
recline
s
pushes
to
upright
variable
position
s
operate
operate
operate
-
support
abuse
aesthetic
s
maintain
-
aesthetic
s
support
abuse
smooth
moves
from
wall
-
aesthetic
s
aesthetic
s
moves
from
wall
recline
s
pushes
to
upright
variable
position
s
smooth
moves
from
wall
recline
s
pushes
to
upright
variable
position
s
-
moves
from
wall
recline
s
pushes
to
upright
variable
position
s
-
-
-
-
-
-
-
-
-
operate
Smooth
operation
Moves
futon
from
wall
-
-
Moves futon
from wall
-
-
-
-
-
-
-
-
push
push
moves
from
wall
Reclines
futon
-
-
-
-
-
-
-
-
-
push
reclines
Pushes to
upright
position
-
-
-
-
-
-
-
-
-
-
pushes
to
upright
Variable
back
positions
-
-
-
-
-
-
-
-
-
-
-
Pairwise Comparison Results
Ranked
9
Moves futon from wall
16.67
9
Reclines futon
16.67
9
Pushes to upright position
16.67
6
Variable back positions
11.11
6
Easy to operate
11.11
5
Aesthetically pleasing
9.259
4
Easy to manufacture
7.407
3
Smooth operation
5.556
2
Support everyday abuse
3.704
1
Easy to maintain
1.852
0
Light in weight
0
Evaluation Matrix
Conceptual Designs
Criteria
Datum
Importance
Linkage
Hydraulic
Handle Crank
Garage Door
Lazy-Man
7
-
S
-
S
+
1
Ease and/or cost of
manufacturing
2
Easy to operate
11
-
S
S
S
S
3
Easy to maintain
2
S
-
S
S
S
4
Support everyday abuse
4
S
S
S
S
S
5
Aesthetically pleasing
9
S
S
-
S
S
6
Light in weight
3
+
-
-
+
S
7
Smooth operation
5
S
S
-
-
S
8
Moves futon from wall
16
S
+
+
+
+
9
Reclines futon
16
S
S
S
S
S
Pushes
0
to upright position
16
S
S
S
-
S
Variable
1
back positions
11
-
S
S
-
S
Futonic
DATUM
1
1
Total +
1
1
1
2
2
0
Total -
3
2
5
3
0
0
-2
-1
-4
-1
2
0
-26
11
-8
-13
23
0
Overall Total
Weighted
Total
Evaluation Matrix
Conceptual Designs
Datum
Criteria
Weight %
Linkage
Hydraulic
Handle Crank
Garage Door
Lazy-Man
Futonic
1
Ease and/or cost of
manufacturing
1
2
1
2
3
1
0.07
2
Easy to operate
2
4
3
2
4
4
0.11
3
Easy to maintain
3
2
2
3
3
4
0.02
4
Support everyday abuse
3
3
3
3
4
4
0.04
5
Aesthetically pleasing
3
3
2
3
3
3
0.09
6
Light in weight
4
2
1
2
3
2
0.03
7
Smooth operation
3
4
2
2
3
4
0.05
8
Moves futon from wall
1
4
4
4
4
3
0.16
9
Reclines futon
4
4
4
4
4
4
0.16
1
0
Pushes to upright position
3
4
4
2
4
4
0.16
1
1
Variable back positions
0
4
3
0
3
4
0.11
27
36
29
27
38
37
Weighted Scores
2.29
3.63
3.0225
2.57
3.63
3.48
Normalized Scores
0.63
1
0.83
0.71
1
0.96
Total Scores
Conclusion
• The “Hydraulic” and “Lazy-Man” designs
appear to be the most desirable
conceptual designs
• These designs compare favorably with the
Futonic Automatic Futon