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Cardboard Swing-Couch Design
Problem Statement for PART I:
The design involves the construction of a hanging
structure of original design, constructed only of
recycled single-ply corrugated cardboard, cloth, rope,
and glue. The design is to be documented by a 4 page
report that includes 1) a list of materials and quantities
(measured areas) used, 2) an elevation drawing, 3) a
side elevation drawing, 4) a plan drawing, 5) a
cardboard joint detail drawing, 6) a short narrative of
the design process, how it meets the specified criteria,
and the construction process, and 7) a brief discussion
of the anticipated behavior (deflections, flexing, etc)
when loaded with sitting people.
The structures must permit two class members (to be designated) to sit upright facing forward
without tipping or collapsing.
The project report and construction is to be completed with a team.
EVERYONE MUST BE PHOTOGRAPHED with their design (digitally). To identify each team,
a sign must be displayed with the name of the entry noted in very readable block lettering in the
photograph. The sign is to be no larger than letter size paper.
Rules:
1. Each team will be allowed to use corrugated cardboard, cloth or canvas, rope, and glue of any
kind. Laminating (layering cardboard sheets with glue) is strictly prohibited. No tape or
mechanical fasteners will be permitted. Pre-manufactured tubing is also prohibited.
2. The structure is not to be assembled on the day during class. The components must be
prefabricated, partially or fully assembled and transported on the day to the test site.
3. The structure will be subjected to two loads of approximately .
4. The structure must have cardboard members that the ropes and cloth are attached to provide
stiffness, particularly for the seat base.
5. The chair must elevate the loads off the ground for an extended period of time, and the chair
back may not tilt more than 30° when loaded or unloaded.
6. Each seat of the couch can be no smaller than 455 mm x 405 mm. The seat area must consist
of a perimeter frame and a cloth base. Only one frame member is permitted within the
perimeter and must be between the seats. Any surfaces must be constructed of cloth. No flat
sheets of cardboard are permitted for seats or seat backs. The frame cross section (through
the member) must not exceed the boundary of a 100 mm x 75 mm rectangular area. The seat
frame members must be visible enough to permit observation.
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