Project Justification & on-going proposal presentation

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  • Putting a static brush on wheel is not effective
  • Project Justification & on-going proposal presentation

    1. 1. PT4427 - Design for Manufacture NPD Presentation Name: John Burke ID: 0654086 Course: Product Design & Technology
    2. 2. Project Justification
    3. 3. Novel Aspects <ul><li>Effectively cleans tyres before entering any building </li></ul><ul><li>Powered by rotary motion of wheels (no electronics required) </li></ul><ul><li>A fraction of the cost of existing solutions </li></ul><ul><li>Attaches to any type or size of wheelchair (manual & motorised) </li></ul><ul><li>Brush heads fully replaceable </li></ul><ul><li>No assistance required by the wheelchair user </li></ul>
    4. 4. Design Approach Above: Adjustability of Product Above: Control for engaging/disengaging brushes Above & below: Spring loaded telescopic mechanism to allow engaging of brushes
    5. 5. Manufacturing viability Manufacturing of product is to be done with common manufacturing methods of: Extrusion, CNC machining and Injection Moulding. The product is designed to utilise standard bearings, springs, nuts and bolts Main structure comprises of bought-in extruded aluminium lengths that require cutting and drilling only Joints are drilled and loosely tightened bolts allows rotation of connected bars. They are then tightened to fix the structure in position. Aluminium (Extruded) Polypropylene (Injection Moulded)
    6. 6. Manufacturing Viability cont’d… Bought-in bristle material Turned Stainless Steel Cut standard sheet metal Standard Extruded Aluminium Cut standard sheet metal Injected Moulded Polypropylene Rubber coated Welded Joint Parts are friction fitted except for shown welded joints Std 9mm Sealed bearing
    7. 7. Proof of Concept
    8. 8. Recommendations & on-going development <ul><li>Further consideration of aesthetics including decorative cover for rear cleaning mechanism </li></ul><ul><li>Further development of spring mechanisms attached to user control </li></ul><ul><li>Revision of support brackets to minimise size and weight while remaining adequately strong. </li></ul><ul><li>Refine detail of brush removal for replacement </li></ul>

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