Hands-Free Bathroom StallChristine Gaudet, Sarah Landry, Jon Hierlihy &

Liam Gribbon

Design & Communications IIMarch 30th, 2015

Group #7

PROBLEM● Germs spreading in public washrooms● “Germ hot spots”

○ Latches○ Handles

● Common pathogens○ E.coli○ Staph Infection

● Poor hand washing habits

CONSULTANTSMrs. Merita MacMillan, RN Regional Lead for Infection Prevention and Control,

Horizon Health Network, Miramichi, NB

Mr. Zachary MacNeil President of StFX Adapted Sport Society,

St. Francis Xavier University, Antigonish, NS

Mr. Steve MacDonald, IRSC, CFTTSenior Machinist and Design Technician,

St. Francis Xavier University, Antigonish, NS

Mrs. Marion LandryCustodian

St. Francis Xavier University, Antigonish, NS

GOAL

To create a product that enables a person to easily close and lock a public washroom stall,

and flush a toilet without the use of their hands. This product would be designed as an add-on to any already existing public stall with

a commercial toilet.

POSSIBLE SOLUTIONS ● Toilet flusher

○ Pedal flusher○ Sensor

● Door lock○ Sensor○ Pedal ○ Turning hook○ T-Bar

COURSE OF ACTION

● Guidelines:○ Compact○ Easy to clean○ Easy to use○ Easy to install

● Chosen Designs:○ “T-Bar”○ “Foot Flusher”

PRELIMINARY DESIGNS

PRELIMINARY DESIGNS

ENGINEERING ANALYSIS

● Material ○ 3003 H-14 Aluminium○ Corrosion resistant, moderate strength (σyield=140

MPa), used in food preparation and utensils.● Loading

○ Designed for 500lb, or 2225N. (A person weighing 250lb, using a factor of safety of 2)

● Dimensioning○ Strengths of Materials

Stall Door SolutionT-Bar

T-BAR

TRACK/GEAR ASSEMBLY

BRACKET

ASSEMBLED DOOR SOLUTION

Toilet SolutionToilet Flusher

HANDLE ATTACHMENT

SHAFT

ORIGINAL TUBE

ORIGINAL PEDAL

ISSUES/SETBACKS

● Rod & tube connection● Loose handle attachment ● Extra joint● Springs & tracks● Sliding while testing ● Lost business consultant

BLOCK

JOINT

FRICTION FIT

FINAL TUBE

FINAL PEDAL

http://www.youtube.com/watch?v=IEEZnMWSRkw

NEXT STEPS

● Prototype and test T-Bar● Refine designs● Patent● Find investor(s) ● Develop business strategy● Develop mass production process

CONCLUSION

● Positive feedback thus far● Some minor adjustments needed ● Bolting to ground to test

Website

ACKNOWLEDGEMENTS

The group would like to thank:Dr. Emeka Oguejiofor

Mr. Paul Doiron Mr. Steve MacDonaldMrs. Merita MacMillanMr. Zachary MacNeilMrs. Marion Landry

QUESTIONS/COMMENTS?

http://www.youtube.com/watch?v=q9Ljoh64oWU