TRIZ+-+40+Principles - 40 Inventive Principles With...

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Return To Previous Page 40 Inventive Principles With Examples This format for the 40 Inventive Principles and the accompanying examples was developed by Karen Tate and Ellen Domb for their class, "Practical Innovation." which was the subject of the article " How to Help TRIZ Beginners Succeed ") in the April, 1997 issue of the TRIZ Journal. Readers have permission to download single copies for personal study. Principle 1. Segmentation A. Divide an object into independent parts. { Replace mainframe computer by personal computers. { Replace a large truck by a truck and trailer. { Use a work breakdown structure for a large project. B. Make an object easy to disassemble. { Modular furniture { Quick disconnect joints in plumbing C. Increase the degree of fragmentation or segmentation. { Replace solid shades with Venetian blinds. { Use powdered welding metal instead of foil or rod to get better penetration of the joint. Principle 2. Taking out A. Separate an interfering part or property from an object, or single out the only necessary part (or property) of an object. { Locate a noisy compressor outside the building where compressed air is used. { Use fiber optics or a light pipe to separate the hot light source from the location where light is needed. { Use the sound of a barking dog, without the dog, as a burglar alarm. Principle 3. Local quality A. Change an object's structure from uniform to non-uniform, change an external environment (or external influence) from uniform to non-uniform. { Use a temperature, density, or pressure gradient instead of constant temperature, density or pressure. B. Make each part of an object function in conditions most suitable for its operation. { Lunch box with special compartments for hot and cold solid foods and for liquids (Part C continued on the next page.) C. Make each part of an object fulfill a different and useful function. { Pencil with eraser { Hammer with nail puller { Multi-function tool that scales fish, acts as a pliers, a wire stripper, a flat-blade screwdriver, a Phillips screwdriver, manicure set, etc. Page 1 of 9 40 Inventive Principles With Examples 10/18/2007 http://www.triz-journal.com/archives/1997/07/b/default.asp?action=print
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Principle 4. Asymmetry A. A. Change the shape of an object from symmetrical to asymmetrical. { Asymmetrical mixing vessels or asymmetrical vanes in symmetrical vessels improve mixing (cement trucks, cake mixers, blenders). { Put a flat spot on a cylindrical shaft to attach a knob securely. B. If an object is asymmetrical, increase its degree of asymmetry. { Change from circular O-rings to oval cross-section to specialized shapes to improve sealing. { Use astigmatic optics to merge colors. Principle 5. Merging
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This note was uploaded on 02/08/2011 for the course MGT 3743 taught by Professor Staff during the Fall '10 term at Georgia Institute of Technology.

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TRIZ+-+40+Principles - 40 Inventive Principles With...

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