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Design Concept Generation Mobility Lift for European Insider Applications. Team # 19 Lauren Hulett Phong Tran Richard Valle. Project Sponsor : Harmar Mobility Inc. Project Advisor : Dr. Carl A. Moore, Ph.D. Introduction. From Our Sponsor
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Design Concept GenerationMobility Lift for European Insider Applications Team # 19 Lauren Hulett Phong Tran Richard Valle Project Sponsor: Harmar Mobility Inc. Project Advisor: Dr. Carl A. Moore, Ph.D.
Introduction • From Our Sponsor • “Harmar is an innovation and design leader that is dedicated to helping individuals enhance their mobility, independence, and quality of life. Their wide range of accessibility and mobility solutions are all built to offer the highest quality, reliability, and value. ” • Sponsor: Harmar Mobility • Specialty: Lift mechanisms for Mobility devices • Model: Volkswagen Golf VI
Customer Specific Needs and Expectations The specific needs given to us by the client are: It should be light weight, and easy to handle. It should have a standard fold down option. Capacity of 60 kg (roughly 130 lbs) Motor needs to be as low as possible. Adjustable boom height and length. Small remote control.
Existing Technology B&S’s Samson Lift Specifications Lift capacity of 115kg (250lb) Maximum height: 100cm (39.4in.) Maximum length: 65cm (25.6in.) Advantage Collapsible Disadvantages Rotation into vehicle is manual
Existing Technology AutoAdapt Carolift 6000 Specifications Maximum Capacity: 181kg (400lb) Minimum height: 87cm (34.2in) Minimum length: 84cm (33in) Advantages Fully automated Designed for narrow or sloping rear door Disadvantages Collapse to side as opposed to down
Concept 1: Forklift Overview Inspiration: Forklift Designed to reduce the amount of manual labor involved in using typical lift models.
Concept 1: Function • In-vehicle tracks • Upright geared tracks • Rollers • Lift platform • Roller bar • Motorized wench with strap
Concept 1: Pros and Cons • Pros • Minimum user labor • Fully automated • No connecting cables • Diverse mobility device choices • Cons • Expensive to build • Bulky • Larger motor • Added maintenance • Added costs
Concept 2: Functional & Mechanisms • Folding to save space • Two positions: 0° & 20° • Rigid base • Gusset plates • Extending & Contracting • Additional 10 inches • Contracting • Housing for pulley system • Securely house inside arm • Screw cap • Protected from weather & debris
Concept 2: Pros & Cons Pros • User-friendly • Foldable • 180 degree swing arm • Pulley system and electrical wires housed internally. • Boom arm can extend & contract • Lightweight • Rigid base • Using Harmar standard materials Cons • Typical looks • Limited lifting capability • Tube needs machine bending • Manual extending boom arm • Rigid Arm
Concept 3: Overhead Crane Design Overview • Design featuring multiple advantageous aspects of various crane types • Overhead cranes are used for their reliability and ability to lift heavy loads • The relative compactness of a telescoping boom makes them adaptable for many mobile applications
Concept 3: Pros & Cons Pros • Simple design • Less Parts • Cost Effective • User-Friendly • Rigid body • Added Strength • Durability • Boom arm can extend & contractvia telescoping boom • Unique Design Cons • Unique Design • Permanent Structure • Bolted to floor • Bearing Slide may poseproblems
References • 1. B&S Wheelchair Hoists Brochure • http://www.onbeperktinbeweging.nl/documents/Engels-Kofferbakliften.pdf • 2. AutoAdapt Carolift Brochure • http://www.autoadapt.com/produkter/PDF/Carolift-6000-6900/Carolift-6000-6900_EN.pdf • 3. Ankarsrum Motors AB DC Motors • http://www.ankarsrum.com/website1/1.0.1.0/16/DC-motors_web08.pdf • 4. Harmar Lift Systems Brochure • http://www.harmar.com/system/brochures/9/original/2012_Harmar_Micro_ v Lift_System.pdf • 5. European Bestselling Cars • http://bestsellingcarsblog.com/2012/03/03/europe-full-year-2011-top-318-all-models-ranking-now-available • 6. McMaster-Carr Supplies • http://www.mcmaster.com/ • 7. Legend Lat Pulldown Machine 905 • http://www.fitnessgiant.com/lat905.html#.UIWbkaPheRU
References • 8. Harmar AL055 Installation Guide • http://www.youtube.com/watch?v=3FRcDZatqPI • 9. AL055 Economy Inside Lift • http://www.harmar.com/products/23 • 10. Project Alliancing: A Relational Contracting Mechanism for Dynamic Projects • http://www.leanconstruction.org/lcj/V2_N1/LCJ_05_005.pdf • 11. PTCCreo Mechanism Dynamics Extension • http://www.ptc.com/product/creo/mechanism-dynamics-extension • 12. Wheelchair CAD Drawing • http://grabcad.com/library/wheelchair--1 • 13. Types of Cranes • http://norman-spencer.com/assets/files/programs/cranes/ • Types_of_Cranes.pdf • 14. Ball Bearing Three Member Slide • http://sugatsune.com/products/ProductDetails.cfm?CATID=13&SUBCATID= • &PRODUCTID=ESR-10