ME 4182 Prototyping 2 Team: GT Rack 2:00 pm November 16, 2005

1
ME 4182 Prototyping 2 Team GT Rack 200 pm
November 16, 2005

• Ryan Glenn
• Andrew Mrasek
• Japheth Nelson
• Manuel McMillan
• Brian Collins
• Hyun Lee

2
Objectives

• Assess prototype progress
• Review Design changes
• Report on remaining open items.

3
Prototype Status

• Carrier and Lower Rails Fabricated using 1
  square steel box tubing.
• Bicycle securing mechanisms sourced and attached
• Fork mount
• Rear Tire Carrier
• Mounting plates from existing Yakima bike carrier
  adapted to mount the lower rail to rack crossbars

4
Current State of Prototype
5
Design Change

• The prototype proved sufficiently rigid, securing
  the bike at the 90 degree flat orientation
• As a result, the seat post clamp support arm was
  deemed unnecessary
• The removal of the seat post support arm requires
  the addition of a new handle.

6
Open Items

• Fabricate locking mechanism that will keep the
  bike upright and also lock the bike when tilted
  90 degrees.
• Design and fabricate new handle now that the seat
  post support arm is now removed.

7
Locking Mechanism

• Locking mechanism consists of swing-plates and
  a spring pin.
• Locking Spring pin mechanism to be sourced from
  McMaster-Carr

8
Locking Mechanism

• Swing-plate and Swing-Plate bracket orientations

9
Prototype with Locking Mechanism
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Prototype with Locking Mechanism
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Conclusion

• Prototype fabrication is back on schedule
• Parts for the locking mechanism will be
  fabricated and sourced over the following week.