B-SAFE Rear Seat Belt
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Transcript of B-SAFE Rear Seat Belt
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B-SAFE Rear SeatBelt
Car rear seat safety
device
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Problem Statement January 1st 2009: The Road Transport Department (JPJ) had
enforced the law on the usage of rear seat belt (The Star:Friday January 2, 2009)
rear-seat passengers are less likely to have safety featureslike airbags, three-point seatbelts and adjustable headrestraints
a need for a newly innovated safety device, which isspecifically designed for rear-seat passengers.
PROBLEM IDENTIFICATION
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Scope of Study
innovating a new type of seatbelt- one of the safetydevices for vehicles rear
seat the current type of seat belt
requires a makeover
give the seat belts a freshnew look, while improvingits functions and safety
features
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Customer Needs
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Design Considerations
Ease of use Safety
Materials and Strength
Cost
Weight
Sustainability and Environment
Stability
Size
User friendly
Installation
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REAR CAR SEAT
Buckle Belt Type Roller MountingPosition
Position of Buckle Belting System Size to accommodateusers
Weight
sensor
Switch forbuckle
Behind
Behind the seatsOn side of back seat
Seats underneath
Nylon
Polypropylene fiber
PolyesterCotton
Near the chest area
Near the hip
Near the abdomen
Belt-like
Covers lap andshoulder
H-shapeInverted Y-shape
FixedAdjustable
FUNCTION DECOMPOSITION
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ORPHOLOGICAL CHARTORPHOLOGICAL CHARTCOMPONENT OPTION
1OPTION2
OPTION3
OPTION4
Material of BeltCotton Nylon Polypropylene
fiberPolyester
Position of buckleNear theabdomen
Near the hip Near the chestarea
Near the chestarea
Sensor availabilityNone None None Yes
Belting systemBelt-like Cover lap and
shoulderH-shape Inverted
Y-shape
Roller mountingposition
Seatsunderneath
One side of theseat
Behind seat Behind
Size ofaccommodate user
Fixed Adjustable Adjustable Adjustable
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Make some improvement Analyze by using FMEA
Can know the potential failure Refer some rating Take come action to overcome
ROBUST DESIGN
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ONCEPT EVALUATION:The designs to be evaluated are
: - (PTION 1 2 Point Belt lap)elt : -PTION 2 3 Point Belt: -PTION 3 Four point Belt: -PTION 4 Inverted Y shapearness Belt: /PTION 5 Lap Shoulder Belt
valuate using Matrix
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ConceptCriteria
Weight(%)
1 2 3 4 5
Ease of use 15 1 1 2 3
D A TU M
Safety 20 3 3 2 3Materials andStrength
7 2 1 1 1
Cost 15 1 1 1 3Weight 7 1 1 2 1SustainabilityandEnvironment
6 2 3 3 3
Stability 6 3 3 1 3
Size 7 1 1 2 1User friendly 11 3 3 3 1Installation 6 1 1 1 3TOTAL 100 1.87 1.86 1.83 2.36
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DESIGN FOR HUMAN FACTORS ANDUSER FRIENDLY
Toimprove
Toreduce
ease of useperformancereliability usersatisfaction
operator stress operation error user fatigue productliability
- Some criteria that have to be improve and reduced :
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)1 It must be safe)2 It must be adaptable to meet the
anthropometric needs of a wide
range of users)3 It must be comfortable)4 It must fit a wide range of body
curves and shapes) ,5 It must be practical and solid so
that it is reliable and easy to
adjust
Design For User Friendly
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BILL OF MATERIAL
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DETAIL DRAWING
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MATERIAL SELECTION
3PARTS
Nylon(Polyamides)
PVC And Stainless SteelPVC And Stainless
Steel
based on the quality, costs, strength,environmental safety
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Nylon (Polyamides)
very good physicalproperties
moisture hassignificant effect
on properties
very good heatresistance
excellent chemicalresistance
excellent wear
resistancemoderate to high
price
fair to easyprocessing
olyvinyl Chloride( )VCeconomic costcan made different formweather resistantmaintains properties over
long periods of time
lightweightwater resistantcorrosion resistant - -high strength to weight
ratio
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o. Part Name Quantity Material Price Unit
(RM)
Price (RM)
1 Belt 1 Nylon 20.00 20.00
2 Retractor 2 VC and tainlessSteel35.00 70.00
3 Buckle 1 PVC andtainlessSteel
10.00 .0 004 Clipper 1 PVC andtainlessSteel
7.00 7.00
5 Bracket 1 PVC andtainlessSteel
6.00 6.00
6 Bolt 4 ild Steel 2.70 .0 807 Bolt Cover 2 PVC 2.00 4.00
Total (RM) 127.80
COSTING
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Material cost =RM127.80
Manufacture cost =RM32.20
Profit = RM25.00
Market sell = RM185
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CONCLUSION