Jack in a Box

Senior DesignGroup # 10

John JuckiewiczMike Zulauf

Advisor: Professor Chung

Products on the Market

“RhinoRamps”by Blitz

Capacity: 12,000 lbs Load17 incline

Retail Cost $65

Hydraulic / Air JackLifting Capacity: 4400 lbs

Max lifting range: 31.3 inchesCost: $519

Bottle JackLifting Capacity: 4000 lbs

Maximum Range: 13 5/8 inches Cost: $40

Products on the Market

VM Series Versalift from Rotary LiftsAir / Hydraulic System

Lifting Capacity 6000 lbsLifting Range: 42 ½ inches

Cost: $1700+

2 Post LiftLifting Capacity: 10,000 lbsMax lifting height: 72 inches

Cost $2000+

Products on the Market

4 Post LiftLifting Capacity: 12,000 lbs

Max Lifting Range: 72 inchesCost: $4000+

Scissor LiftLifting Capacity: 9000 lbs

Max Lifting Range: 32 inchesCost: $2500+

Business Description

CUSTOMER DESCRIPTION• Designed for the “Back Yard

Mechanic”- anyone who enjoys automotive mechanics

• Provide Sales directly to public, as well as wholesale

CUSTOMER NEEDS• Functionality• Safety• Reliability• Durability

Business Model

Research & Development

Preliminary Design

Fabrication of Components

Assemble Components

Final Testing

Alpha + Beta Testing

Pre Assembly

Marketing

Distribution

Support

Consultation

Outsource Own

Finances – Summary FoMs

FoM Values

MARR 15%

IRR 40.51%

NPV $ 49,218,987

Payback in years 3.5 yrs

Our Product vs. Competitors

Design Aspects

• Frame Design• Lift Design• Assembly• Concerns

Frame Design Progress

Frame Design Progress

Frame Design Progress

Frame Design Progress

Mechanical Model

Hydraulic Model

Alternative Hydraulic Model

Stress/Strain Analysis

StressStrain

Deformation/ Displacement Analysis

DeformationDisplacement

Lift Design

• Mechanical• Hydraulic

Mechanical Drawing

Mechanical System

PROS• Least Expensive• Simpler Design• Less chance for

problems• Safe• Relatively light• Clean• Large actuation

range

CONS• Need 2 motors• Not state of the

art technology• Difficult to design

motor / jack couple

 

Hydraulic Drawing

Hydraulic System

PROS• Easily Operated• State of the art• Large load

capabilities• Good

Technology

• CONS• Expensive• Could be messy• Complex

Design• Heavy• Slightly limited

range

Parameters Mechanical Hydraulic

Cost 5 5

Ability to support Load 3 5

Size 4 4

Weight 3 2

Safety 4 4

Range of motion 5 3

Totals 24 23

comments

comments

both equally cost effective

the hydraulic design has better ability to support load

comments

comments hydraulic jack is a little heavier

approximately same size

comments

comments

comments

both designs quite safe

mechanical design has better range of motion

overall the mechanical design has slightly better score

Parameters Considered in Design Selection

Safety Concerns

Addition of an array of screws or track spikes to allow greater traction when climbing the ramps

Safety Concerns

Addition of supports to the designs to help carry the load of the vehicle

Mechanical Model

Safety Concerns

Hydraulic Model

Budget

Material Qty $ each Total6' steel square tube 10 $8.38 $83.801/4" steel sheet metal 24"x24" 4 $50.00 $200.00scissor jacks 2 $15.00 $30.00hydraulic jack 2 $30.00 $60.00Welding Supplies - $106.00 $106.00misc - $100.00 $100.00

Total Mechanical $519.80

Total Hydraulic $549.80

Gantt Chart

ID Task Name

2 Economic Analysis

3 Competitive Benchmarking

4 Design and Drafting

5 Design and Stress Analysis

6 Material Analysis

7 Additional Design Analysis

8 Ramp Frame Assembly

9 Ramp / Jack Assembly

10 Complete Assembly

11 Testing

12 Mockup Refinement

13 Market Research

100%

100%

100%

100%

100%

100%

0%

0%

0%

0%

0%

55%

21 28 5 12 19 26 2 9 16 23 30 7 14 21 28 4 11 18 25 1 8 15 22 29 7 14 21 28 4 11 18 25 2 9 16 23 30 6 13 20Sep '03 Oct '03 Nov '03 Dec '03 Jan '04 Feb '04 Mar '04 Apr '04 May '04 Jun '04

QUESTIONS ?