Spring + Gear + Motor = Energy

It’s completely brilliant! Can you take this idea apart? This is a portable spring driven power generator design concept by designer Satoshi Yanagisawa, one that says you’ll be able to recharge your daily portable gadgets anytime anywhere without further negative impact to the environment. Sounds alright! The name of this project is “Cyclus,” and it’s a spring driven personal electricity generator. A hand held device that, when its bottom is twisted, provides 30 minutes of energy via the inner located spring via “rotation energy.”

The energy generated, Yanagisawa says, is enough to drive the DC motor (in the upper part of the device) to produce energy approximately equal to 6.6V 3W. Yanagisawa envisions this device as a catalyst for the next generation of ideas that generate social togetherness as well as electric energy.

Designer: Satoshi Yanagisawa

34 Comments

  • Mochasarah says:

    This is such an inspired design!

  • Mochasarah says:

    This is such an inspired design!

  • Aldrich says:

    This will come handy

  • mimb says:

    Interesting – is there an Australian distributor?

  • mimb says:

    Interesting – is there an Australian distributor?

  • engineeringthoughts says:

    This makes it seem trivial to generate power. Lets take the claims at face value.

    A phone charging off a USB port will pull 500mA max at 5V – that is 2.5 watts, completely reasonable for a battery that needs to be charged. 2.5 watts for the claimed 30 minutes is 1.25 watt hours. 1.25 watt hours is 4500 Joules.

    This is an ENORMOUS amount of energy to store in a small spring. Energy stored in a coil spring is .5*k*x*x – a very stiff spring would have a K value of 90lbs/in (takes 90 pounds force to compress/extend by 1 inch)***.

    You would have to compress or extend said spring about 29 inches to get this amount of potential energy…. 29in*90lb/in = 2610lb

    It’s fairly unreasonable to expect a human to apply over 2 short tons of push/pull – even 90 pounds is unreasonable.

    Now, I know it’s a twisting action – power springs are more abstract to the layman than the ubiquitous coil spring.

    Even if we used a power spring (the style used in clocks, seat belts, wind up toys, etc.) – it would need to be gigantic and would be equally difficult to “compress” VIA twisting.

    Designers – please stop trivializing power generation! It makes my job (and the jobs of others working in the space of small scale energy conversion) more difficult and fails to manage customer expectation. The internet has a huge amount of resources to do quick feasibility gut checks.


    *** I did the calculation using more traditional units using newtons, meters, etc. pounds (force) and inches are just for reader ease.

  • engineeringthoughts says:

    This makes it seem trivial to generate power. Lets take the claims at face value.

    A phone charging off a USB port will pull 500mA max at 5V – that is 2.5 watts, completely reasonable for a battery that needs to be charged. 2.5 watts for the claimed 30 minutes is 1.25 watt hours. 1.25 watt hours is 4500 Joules.

    This is an ENORMOUS amount of energy to store in a small spring. Energy stored in a coil spring is .5*k*x*x – a very stiff spring would have a K value of 90lbs/in (takes 90 pounds force to compress/extend by 1 inch)***.

    You would have to compress or extend said spring about 29 inches to get this amount of potential energy…. 29in*90lb/in = 2610lb

    It’s fairly unreasonable to expect a human to apply over 2 short tons of push/pull – even 90 pounds is unreasonable.

    Now, I know it’s a twisting action – power springs are more abstract to the layman than the ubiquitous coil spring.

    Even if we used a power spring (the style used in clocks, seat belts, wind up toys, etc.) – it would need to be gigantic and would be equally difficult to “compress” VIA twisting.

    Designers – please stop trivializing power generation! It makes my job (and the jobs of others working in the space of small scale energy conversion) more difficult and fails to manage customer expectation. The internet has a huge amount of resources to do quick feasibility gut checks.


    *** I did the calculation using more traditional units using newtons, meters, etc. pounds (force) and inches are just for reader ease.

  • Honorio Monreal says:

    El generador se vende donde lo podré conseguir.

  • vogelcube says:

    This is bad design. Anyone can make a spring-loaded device connected to a generator. You can even make it hand-sized, but no one wants to hand-crank their phone. There's a reason there haven't been much use of crank-powered tech outside the emergency weather radio.____Make it capture natural movement via impact or free motion, similar to a pedometer, so you can generate power from walking or even vibration of a vehicle, such as the stop-start of a bus. If you're dead-set on using springs, then give us one we can power by using a ____-cycle or skateboard. Even a generator attached to a Skip-it (most likely tm) or the infinitly amusing Shake-weight ™ would more useful than this.

  • vogelcube says:

    This is bad design. Anyone can make a spring-loaded device connected to a generator. You can even make it hand-sized, but no one wants to hand-crank their phone. There's a reason there haven't been much use of crank-powered tech outside the emergency weather radio.____Make it capture natural movement via impact or free motion, similar to a pedometer, so you can generate power from walking or even vibration of a vehicle, such as the stop-start of a bus. If you're dead-set on using springs, then give us one we can power by using a ____-cycle or skateboard. Even a generator attached to a Skip-it (most likely tm) or the infinitly amusing Shake-weight ™ would more useful than this.

  • Teresa says:

    Where do i buy this thing ???? …………i have too have it !!!!!

  • Teresa says:

    Where do i buy this thing ???? …………i have too have it !!!!!

  • I would buy this in a hearbeat. If you can figure out how to make it please send me an email.

  • I love this Yanko. You are agreat mind Yanko. I have an 800VA Luminous inverter and it is good. How much does it go for? I need samples and I will pay for delivery. Please, respond immediately. I live in Port Harcourt, Nigeria.

    Chibueze Nwakpuda

  • Stephen says:

    Brilliant design, I want one now! Really, are these commercially available in Canada(or North America?).

  • Filtec says:

    Hello

    the Cyclus is for sale, where can I buy?

  • cs says:

    the oscillations must be continuos in order to produce a continuos power supply. but it is almost impossible .because due to frictional force the oscillations will get damped at any time .

  • George McIntire says:

    I appreciate all your math and ideas. We have these things called pulleys that could bust the curve of potential energy and make it possible to generate huge amounts of human to electric via springs and dead weights like old grand-father clocks, to produce a lot of useful energy. Don”t banter me, lets talk and explore potential ideas together. Mack

  • PATRICK GALLOWAY says:

    USE A BI METAL SPRING INSTEAD OF THE WIND UP KIND.LOCK THE SPRING TEMPORARILY IN ITS EXPANDED POSITION,THEN RELEASE IT,THEN TEMPORARILY LOCK IT IN ITS CONTRACTED POSITION, THEN RELEASE IT.POWER CAN BE IN BOTH DIRECTIONS OF BI METAL SPRING DUE TO EXPANSION AND CONTRACTION THAT OCCURS NATURALLY DAY AND NIGHT. THE ONLY THING THAT IS CLOSE TO PERPETUAL. THIS IS AN EXAMPLE OF POTENTIAL ENERGY (LOCKED IN POSITION ) BEING CONVERTED TO KINETIC ENERGY, (RELEASE POSITION.)USING THE DIFFERENCE OF DEGREE OF MOVEMENT CAUSED BY TEMPERATURE CHANGE. NORMALLY A 30 DEGREE MOVEMENT.MOVEMENT IS ENERGY.

  • Having read this I believed it was very enlightening.
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    to put this article together. I once again find myself personally spending a lot of time
    both reading and leaving comments. But so what, it was still worth it!

  • Jeramy says:

    Can I simply say what a relief to uncover someone that really
    understands what they’re discussing on the web.

    You actually kno hhow to bring an issue to light and make it important.
    A lot more people must read this and understand this sidee of your story.

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  • I am actually happy to glance aat this website posts which contains tons of useful facts, thanks for providing such data.

  • PATRICK GALLOWAY says:

    THE CYCLES ARE CONTINUOUS ONCE THE SPRINGS ARE LET TO SET THEMSELVES OVERNIGHT. THE DIFFERENCE IN TEMPERATURE OF DAYTIME AND NIGHTTIME IS APPROX. 30 DEGREES . SO YOU HAVE A 30 DEGREE OF MOVEMENT NATURALLY BY TEMPERATURE CHANGE. 12 SPRINGS = 1 REVOLUTION OF THE GENERATOR. OF COURSE THAT CAN BE GEARED SO THAT THE REVOLUTION IS SLOWER BUT CONTINUOUS, LIKE THE GEARS OF A WIND UP WATCH

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