Product: Skates
Stabilised skates   (+3)  [vote for, against]
Stabilise the wheel speed on a pair of skates

The wheel speed is stabilised with 3 mechanisms to control and reduce your feet sliding forward or backwards.

First, the wheels on both feet are connected by a mechanical linkage that goes up each leg through a conduit. The linkage makes them spin at the same speed. This helps prevent feet sliding apart in a forward backward direction.

Second, the mechanical linkage also connects to a geared flywheel, to resist rapid changes in wheel speed. This helps prevent both feet suddenly sliding out from under you together, or one sliding out from under you while the other is off the ground.

You can propel yourself forward in two ways: pushing diagonally as with regular skates, or by using a normal walking motion.

Skating sort of takes a bit more effort than normal as the flywheel causes resistance to your increase in speed. On the other hand it also resists decrease in speed.

With the parts so far, a walking motion would not move you as far as walking normally, as the flywheel would allow your foot to slip backward. To prevent this while walking from a standstill, the third mechanism is a ratchet on the flywheel preventing it from turning backwards.

You have to put up with the lesser walking progress when walking from a roll. But you get it on top of the roll movement.

There is a gear change mechanism (safely adjustable only while stationary) to change how much the flywheel resists wheel speed changes. Lower resistance makes skating easier, and deliberate speed changes easier, higher resistance makes you more stable and makes walking from a given roll speed more effective.
-- caspian, Jul 04 2015

Drawing http://www.sockstar...abilised-skates.png
[caspian, Jul 05 2015]

3 things your current skates are doing wrong http://www.sockstar...-stabilised-skates/
Advocating it clickbait-style [caspian, Jul 05 2015]

I am envisioning the mechanical linkage. I imagine the drive chain from each wheel meet where ones legs meet. There are other things already occupying that property which might not want to be roommates with spinning chains and geared flywheels.

Or maybe these come up to meet in a backpack like device?

I am feeling envisionally challanged. Caspian can you draw a picture?
-- bungston, Jul 04 2015


Direct mechanical linkage - energetically efficient.

Motor/generator with battery and PWM control - sophisticated but many losses through the system.

Bicycle ?
-- 8th of 7, Jul 04 2015

I'm envisioning skating in tar.
-- cudgel, Jul 04 2015

[bungston] I was thinking of a flexible rotary shaft in a non-rotating conduit, with the flywheel also being encased, so you're protected from the spinning parts, with the flywheel case flat against the front of your stomach to down in front of the occupied property. I'll make a picture. It could go at the back though.

[8th] using a pair of motor generators and a battery might make this a lot more practical, despite the possibility of slippage.

If you had plenty of power available you could get up to speed and then change virtual inertia (resistance to change in wheel speed) to make walking and stability better, or offer more resistance to reduction in wheel speed than increase, to make speeding up easy by shuffling feet back and forth.

And even without so much power, replacing the shafts, flywheel and gearbox could make it much easier to build.
-- caspian, Jul 05 2015

random, halfbakery