5 ms·

I understand that the 'gears' synchronize the jump, but can this be considered 'mechanical gears', if it is not a completely independent system where the energy

I understand that the 'gears' synchronize the jump, but can this be considered 'mechanical gears', if it is not a completely independent system where the energy of one gear is being transmitted to the other? Can it be a gear if it does not make a complete 360 degrees rotation? what defines a gear? if there were 3 teeth, does it define a gear?

wingspar 6y ago
Here’s geared pruning loppers, only a couple of teeth, no 360 rotation. https://www.fiskars.com/en-us/gardening-and-yard-care/products/loppers/powergear2-lopper-18-394751-1002 https://www.fiskars.com/en-us/gardening-and-yard-care/produc... Geared hinges https://www.select-hinges.com/products/geared-continuous/concealed https://www.select-hinges.com/products/geared-continuous/con...
- ASalazarMX 6y ago
  The geared hinges are practically equivalent to the article's topic.
op03 6y ago
>What defines a gear? Intermeshing teeth I would think. What else are you going to call it? gear-like mechanics maybe.
jcims 6y ago
If you wanted to synchronize the motion of two parallel output shafts that are being driven independently, this would be one mechanical arrangement that would get the job done. The two parts that engage in this configuration would be called gears. (most likely they would use sprockets and a timing chain...can't wait till someone finds that in nature)
twic 6y ago
A rack and pinion is a gear, and the rack definitely can't make a complete 360 degrees rotation.
jstanley 6y ago
> if it is not a completely independent system where the energy of one gear is being transmitted to the other But that is what's happening. That's what the gears are for. They synchronise the motion by transmitting force from either side to the other. If the left leg faces less resistance (or has a stronger muscle, etc.), then the extra motion that would go into the left leg is instead balanced across to the right leg through the gears.
coldtea 6y ago
>Can it be a gear if it does not make a complete 360 degrees rotation? Well, there are also oval gears, many types of non-circular gears, and so on. Not all cyclical/360 degree, e.g: https://ae01.alicdn.com/kf/HTB11B0bhviSBuNkSnhJq6zDcpXaG/400-06561-B-for1900A-gear-half-gear-sector-gear-sewing-machine-accessories.jpg https://ae01.alicdn.com/kf/HTB11B0bhviSBuNkSnhJq6zDcpXaG/400... A gear is about the teeth and the ability to synchronize according to a ratio. If you just need 180 degrees of motion (and e.g. will move it manually or automatically back to the starting point begin with), it's still a gear.

wingspar 6y ago

Here’s geared pruning loppers, only a couple of teeth, no 360 rotation. https://www.fiskars.com/en-us/gardening-and-yard-care/products/loppers/powergear2-lopper-18-394751-1002 https://www.fiskars.com/en-us/gardening-and-yard-care/produc... Geared hinges https://www.select-hinges.com/products/geared-continuous/concealed https://www.select-hinges.com/products/geared-continuous/con...

ASalazarMX 6y ago
The geared hinges are practically equivalent to the article's topic.

op03 6y ago

>What defines a gear? Intermeshing teeth I would think. What else are you going to call it? gear-like mechanics maybe.

jcims 6y ago

If you wanted to synchronize the motion of two parallel output shafts that are being driven independently, this would be one mechanical arrangement that would get the job done. The two parts that engage in this configuration would be called gears. (most likely they would use sprockets and a timing chain...can't wait till someone finds that in nature)

twic 6y ago

A rack and pinion is a gear, and the rack definitely can't make a complete 360 degrees rotation.

jstanley 6y ago

> if it is not a completely independent system where the energy of one gear is being transmitted to the other But that is what's happening. That's what the gears are for. They synchronise the motion by transmitting force from either side to the other. If the left leg faces less resistance (or has a stronger muscle, etc.), then the extra motion that would go into the left leg is instead balanced across to the right leg through the gears.

coldtea 6y ago

>Can it be a gear if it does not make a complete 360 degrees rotation? Well, there are also oval gears, many types of non-circular gears, and so on. Not all cyclical/360 degree, e.g: https://ae01.alicdn.com/kf/HTB11B0bhviSBuNkSnhJq6zDcpXaG/400-06561-B-for1900A-gear-half-gear-sector-gear-sewing-machine-accessories.jpg https://ae01.alicdn.com/kf/HTB11B0bhviSBuNkSnhJq6zDcpXaG/400... A gear is about the teeth and the ability to synchronize according to a ratio. If you just need 180 degrees of motion (and e.g. will move it manually or automatically back to the starting point begin with), it's still a gear.