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Unit 91 Week 5 Presentation

Patents Presentation. Unit 91 Week 5 Presentation. Jon Gutierrez, Chris Sauer, Simon Radomski, Chat Huynh, Jeff Burton, & Robert Platt September 17, 2008. Last Week. Task Assignment Design Partition Problem Statement. Frame Assembly for a Bicycle. Patent #7267351 Issued: Sep 11, 2007

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Unit 91 Week 5 Presentation

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  1. Patents Presentation Unit 91 Week 5 Presentation Jon Gutierrez, Chris Sauer, Simon Radomski, Chat Huynh, Jeff Burton, & Robert Platt September 17, 2008

  2. Last Week • Task Assignment • Design Partition • Problem Statement

  3. Frame Assembly for a Bicycle • Patent #7267351 • Issued: Sep 11, 2007 • Allows for 2 water bottles • Claims a dual suspension bike with a shock extending from the rear axle to the main frame • Claims shock ratios associated with the shock placement

  4. Specialized Epic FSR

  5. Bicycle Suspension Apparatus and Related Method • Patent #7296815 • Issued: Nov 20, 2007 • Claims upper and lower rocker arms • Chain torque lines coincides with both rocker arm lines at the same point • Claims reduced bobbing • Claims brakes are positioned to not interfere with suspension travel

  6. Ellsworth Dare

  7. Rear Suspension System for Two-Wheeled Vehicles, Particularly Bicycles • Patent #6843494 • Issued: Jan 18, 2005 • Claims upper and lower links that create a nearly vertical wheel path • Claims small and constant amount of chain extension to limit pedal feedback • Claims a 4-bar linkage allows this

  8. Rocky Mountain Bicycles ETSX 50

  9. Rear Suspension System for Bicycle • Patent #6199886 • Issued: Mar 13, 2001 • Claims geometry that allows very little change in chain length during travel, therefore reducing pedal feedback and bobbing • Claims angle between 18 and 30 is about 90degrees, therefore reducing bob

  10. Cycle Suspension Assembly • Patent #7395892 • Issued: Jul. 8, 2008 • Claims increased suspension travel possible • Claims reduced bobbing

  11. Problem Statement Update Regular Riding Landing Jumps Characteristics • Hard Suspension • Maximum force to rider Characteristics • Soft Supension • High Traction

  12. Problem Statement Update Begin Impact End Impact Characteristics • Low Initial force Characteristics • High Final Force Goal: allow the rider additional reaction time

  13. Problem Statement Update • Rear wheel should travel rearward or vertical • This allows suspension to react to obstacles like rocks without binding Pivot point on main frame Suspension Path Rear wheel Obstacle “rock”

  14. Next Week • Selection Analysis • Selection analysis best 5 conceptual designs including, engineering specifications and evaluation criteria to assess each.

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