TRIZ Competition 2013

JONG ZHI YENEILEEN CHAI YI LINKHOO THIAM WEE

Problem statement

???

?

HAND DRILL IS HEAVY.

WHY??CASE 1CASE 2

The Work piece is a fail prototype which the hole is not perpendicular.

Having trouble on operating hand drill??

HAND DRILL IS HARD TO OPERATE(TOO MANY BUTTON & DRILLING NOT ACCURATE).

Loves to DIY. However sometimes…Lead to sadness and disappointment.WHY??

Reason 1Reason 2

Over Drill

The drilling process fail although marking was made on the drill bits and the measurement unit attach on the hand drill is to prevent over drill. However if over force was applied it will still cause over drill.

Reason 2 : The method use for prevent over drill is not effective

Reason 1 : The Drill is not Accurate

Identify the problem

Function Analysis

Cause and Effect analysis

Engineering Contradiction

Contradiction Matrix

Specific Inventive Principle

Solution Substance-Field Model

NINE Window

Benefits if problem is solved

Problem statementMany woman and “Mr.DIY” face problem on inaccurate drilling and over drill situation . Besides that, woman also face problem on the complexity of the hand drill button and the weight of the hand drill.

The Market Value of the Hand Drill increases and convert the non-customer(Woman & Mr.DIY) to customer.

Process Flow

Function Analysis

Function Model of Engineering System

(After Trimmed)

Drilling not accurate

User problem

Lack of experience

Never try before or lack of practice

Afraid Failure

Failure can cause the project cost increase

Drilling vibration is

too high

No feedback Drilling position not handle properly

Using wrong Drilling tools

User careless

The surface of the material to be drill

is not smooth

The materials selection is

wrong

Inventive PrincipleCause and Effect

AnalysisEngineering ContradictionContradiction Matrix

If feedback process is properly done.Then the accuracy of the drilling process is increased.But the loss of time and the device complexity will be increased.

Improving Feature Worsening Feature

#24-Loss of Information #25-Loss of Time

#36-Device Complexity

NO Inventive principle

24 Intermediary

26 Copy

28 Mechanics Substitution

32 Color Changes

#28-Mechanics Substitution

Adding feedback sensor on the hand drill

Inertia Measurement Unit(IMU) is a sensor that are used for balancing while in this hand drill application, it function by providing feedback on the degree of angle of the hand drill

Ultrasonic sensor is the sensor to provide feedback on the distance

Solution

Electrical Field

Hand drill MaterialIneffective Su-Model

Substance-Field Model

Feedback sensor

Mechanical Field

Direction Button

Ineffective Su-Model

Substance-Field Model

MotorFeedback sensor

Electrical Field

Control the motor direction

Final Solution

NINE Window

Past Present Future

System

Sub-System

Super System