| Design Concept-The Process of memory |
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| Healthy concepts in science: In order to break through the margin of possibility in my thought, |
| I reminded myself first before starting design. Scientific calculation is to understand the existing |
| phenomenon and further produce basic calculation formula. The purpose is for easy logic |
| thinking more simply and easily and use the calculation formula to find the reasonable |
| possibility to shorten the experiment direction and path. |
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| Start Thinking……….I decided to use (toe-out-on-turns) to handle the problem of the Top |
| dead Point (Top initial point) which can make the pedaling force work before the Top |
| dead center. It is estimated that 25%-30% pedaling force will be saved, at the same time |
| the saving power can put into the pedaling force. It can make the torque output increase |
| immediately in opposition. So it can be thought and implement on logic. Let’s start designing!? |
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| Start Design…….. extendable, different curved structure , spring-styled, idle running, |
| and oil-pressured? were taken into consideration, and the curved structure was to be the final |
| decision. Only the curved structure can be in one-body shape, and will not appear the breaking |
| point in structure easily. (The designer’s self-requirement must have to overthrow his own design |
| for more than 5 times.) Then , have to choose the one which fits the requirements of durability, |
| the best efficiency, effectiveness, simple structure, ease of manufacturing, the popularity |
| of factory assembly, the ease of new and old bikes can be assembled and changed in consumer |
| market, and be beautiful. |
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| Filtering requirements…………….. |
| The best efficiency: |
to find the reasonable “toe-out-on-turns” angle, make the force pass through |
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the Upper dead center to let the power more efficient. Then I integrate the |
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golden spiral into the structure to make the pedaling force can surround the |
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axle for 360 degree uniformly, and therefore that can increase the force |
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effectively to reduce the dead angle of pedaling force. |
| Be durable： |
The stress of golden spiral distributes in average, which can surround the |
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axle center for 360 degree uniformly, and therefore the crank and the axle |
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are forced uniformly. |
| Simple structure: the single structure. |
| The ease of manufacturing process: the single structure. |
| The ease of factory assembly: It can be implemented on present process line without the change |
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of manufacturing process. |
| The popularity of factory assembly: It fits for all kinds of bicycles. |
| Simple and easy install of new and old style bicycles in the consumer market: All types of bicycles, |
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easier for changing. |
| Be beautiful: Be Cool, elegant, motional, smooth line, and delicate. |
| Have to be effective: Waiting for test riding. |
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| The design of structure is completed……………..producing the engineer sample. |
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| The day of test riding was finally coming……….. It rode much smoother than the straight crank |
| did in flats. The sense of inactivity at Upper dead center shortened efficiently, and the most |
| exerting dead point past through at once. I wondered how it would be that riding hard while the |
| pedal arrives at Upper dead point？I gave it a try as well as I wondered. It was shucked that the |
| extra force was released from the back wheel. On the instant, I knew I made it. |
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| The journey of engineering sample ride testing, domestic top ten bicycle factories are our target. |
| As a result, 95% of them are shucked. (There are Taiwanese, several American and Japanese |
| engineer participated.) |
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| Therefore, we decided to invest. The name is Power curved crank, it has been 11 years from I |
| started writing to manufacturing. |
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| Review before on the road： |
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| Test report |
| I couldn’t find any factory to make this test of the bicycles torque output in Taiwan. |
| However, I met the boss of designing test instrument. He recommended SGS has an equipment |
| can be re-equipped to test our crank which uses mechanical torque measurement---- instead of |
| electric induction torque measurement. This was exactly what we wanted; mechanical torque |
| measurement can transit actual torque number instead of the conversion number of electric |
| induction. |
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| Fatigue test seems quite negative, especially the crank with hole on it. This was what the test man |
| thought. |
| That’s take the most strict standard to test. The result was completely passed. The BB was |
| broken once in the process. (It happened usually in the fatigue test.) |
| The Conclusion ……….The structure of golden spiral has an extremely firm and solid just as |
| expected. |
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| Problems of weight……Our product is 250 gram (about 250cc water) heavier than the ordinary |
| crank. However, it is necessary as oppose to powerful torque. 30 KG force, 25%~30%, is added |
| for offering the torque from the top dead point 0 degree to 60 degree. The heavier the force is the |
| more powerful torque will the rider get. On account of obtaining more torque will support the |
| experience of light drive which also explains that the test rider can experience light, fast and power. |
| An idea…. if a 10kg bike, force30Kg, there is 25% to 30% more torque as oppose to the weight |
| of bike itself which also means bike itself is much lighter. |
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| The formula of scientific calculation is closed to the data of actual test and the statistics curve |
| is the same. |
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| Why I use square hole in the Bottom Bracket? Because it is more firm and solid on the structure |
| Shearing resistance and the crank will be more durable. |
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| Conception of increasing torque output….Magnifying torque comes from the released frequency |
| of working force instead of not Rotation Momentum. |
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| There are nearly 400 consumers and buyers from domestic and international countries to test |
| riding. The result is from doubt to shuck. |
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| The result of coming across to world-class player: they were too shucked to describe like |
| Turbo Crank. |
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| Top ten domestic bicycle factories, the result of test riding: Shucked. Several bicycle factories |
| have been testing formally and plan new type of bicycle. |
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| A simple curve, use countless complex logic which have been deduced. It has been 11 years. |
| I think I am ready to go. |
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