portable. easy to carry and use. low weight. cheap. simplicity. made from wood and aluminum. project...
TRANSCRIPT
• Portable.• Easy to carry and use.• Low weight.• Cheap.• Simplicity.• Made from wood and aluminum.
Project
Portable ChairGE 105 (Introduction to Engineering Design)
• A chair is a piece of furniture with a raised surface used to sit on. The Chairs are most often supported by four legs and have a back.
• There are many kinds of a chair that are completely different in their shape, size, color, and also what it is has made of.
• we all need to be comfortable, especially when we walk or stand up for a long time or when we are in the school or when we are in the markets or even at home, so chairs are important for our daily life.
• Primary Objective :Design a portable chair to be easy to carry and move it anywhere, especially for the old people and for special needs, so they can carry the chair anywhere they want.
• Secondary Objectives :The chair will be easy to use, not heavy, nice shape, will be design as a bag, marketable, portable, low cost and easy to make.
Section: 35539 BY: Group 5 SUPERVISOR: Dr. Mohanad El Harbawi
• There are a lot of chairs in the markets, different shapes and types. However, these types have some weaknesses regarding the design.
• The first problem is that the chairs in the markets are fixed (not portable), and cannot be moved easily.
• The second problem is the weight of the chairs in the markets are very heavy, especially for the old people to carry them ever they want
• The third problem is the cost of the chairs in the markets are expensive.
- The chairs in the markets are fixed, heavy and expensive.
- Best solution is (portable chair).
- Material suggested is wood.
- Wood is flexible, not heavy, very cheap and has a nice shape.
INTRODUCTION1 PROBLEM STATEMENT2 OBJECTIVES3
Criteria5METHODOLOGY4
RESULTS AND DISCUSSION8
CONCLUSION10
• Design the chair to be carried as a handbag.• Size: length: 47 cm, width: 35 cm, height: 43 cm. • Weight not exceed 3 kg. • Cost not exceed SR 100 SR.• 3 years lifetime.
Constraints7
• Design a portable chair. • Easy to carry and move it anywhere.• Should be carried as a handbag.• Should be easy for old people.• Weight must be less than 3 kg.• Cost must not exceed 100 SR.• Must be safe.• Applied weight should be less than 90 Kg.
Need Analysis6
Function Option 1 Option 2 Option 3
Material of the base Steel Plastic Wood
Material of the legs Steel Plastic Aluminum
Cover Heavy Cloth Light Cloth Leather
Fix Glue Nails weld
Criteria
Concept
Easy to Carry
and Use
Low Weight
Low Cost
Durability
Score
Weight 25 25 25 25
Design (a)3 2 3 9
425
75 50 75 225
Design (b)
9 8 8 6775
225 200 200 150
Design (c)9 10 5 2
650
225 250 125 50
• From the comparison table we chose design (b) because it has the highest points.
• Design (b) is flexible, not heavy, very cheap, durable and has a nice shape.
Sketch & Picture 9
Start
End
Problem Identification
Search forInformation
MoreInformation
Needed?
Forming Ideas
Search for Alternative
Proposals
Evaluate Proposals
AnyProposalFeasible?
Conceptual Design
Preliminary Design
Final Design
Build and Test
ProductAcceptable?
Delivery of Product
Yes
No
No
Yes
Yes
No