Clayton and Charity's Bus Stop Seat
Description of Goals
- Goal 1 - Rest comfortably
- Goal 2 - Manage capacity
- Goal 3 - Integrate with surroundings
Logic Diagram
CAD Model
Power Point
Master Seat Geometry Explained
Occupancy Level—> Overall Length of bench. For each additional person, bench got 18inch longer to accommodate the new person.
Temperature—> The six slits in the back rest of chair fluctuated in width depending on the temperature
Person Height—> Person height dealt with the dimensions of parts A,B,G,H,E in drawing above.
Person Weight—> Person weight dealt with thickness of parts I,D,C,F as well as the thickness of the seat post which is unlabeled.
Person age—> Person age changed the slope of G measured by theta theta3 with respect to the vertical axis.
Waiting time—> To make the chair more comfy, theta1, theta2, and the length of A all morph depending on waiting time. Also, the angle between G the seating surface and the seat back also changes.
Possible Configurations
Design "Challenges" and What We Learned
=== Slope is an Issue ===
Because the slope can be sloped, people might slide down the bench into one and other. A possible solution would be to have the design step down with flat section to account for the slope, or the addition of individual armrests to keep people in place.
=== Hard to Sit Down ===
As wait time increases the foot rest part extends and and the angle becomes greater making it more like a recliner. This makes it very hard to actually sit down on the seat unless you are approaching from the very edge of the seat.
=== Designed for profile ===
Our initial geometry was designed as a profile and when extended into a massive bench looses much of its aesthetic appeal. One thing that would help somewhat, would be to get rid of the continuous seat post, and instead have a post that instantiates itself every couple feel. This would help the bench feel lighter and less bulky.
===Site Problems ===
Due to the way the site file was created, we had trouble getting our bench positioned on the site itself and while it will still adjust for a change in curvature or slope, it has no relationship to the curb or the site width. In a future model we would like to resolve these problems.
Why Chose Our Design?
- Fulfills all design goals and requirements
- The chair's sleek design and back and footrests, especially, make the chair inviting and a comfortable place to rest
- The chair’s back not only provide support and recline, but contains “vents” for maximum thermal comfort
- The design is simple, so would be compatible with most, if not all, enclosures
- It's the best!
Discussion
Good solution overall - it seems that all of the considerations were folded into the model. It would be good to show how it would factor in a slope curvature. This might simply be a matter of doing the swept seat geometry in two parts - a level seat area, and a base component that blends from one x-sec to another x-sec on a trajectory.