effort n newton per human arm

[Danielex46]

Good morning.
I just wanted to know the data expressed in n newton, maximum necessary to operate a crank/cardan that raises/lows a shutter of 2 m wide.
I thank antiipatament who will satisfy this question.
danielex welcome reply with email:
Oscort mail, forum risponders

 

[MassiVonWeizen]

Why by email? must the answer be only yours and not useful to the whole forum?

 

[Danielex46]

Why by email? must the answer be only yours and not useful to the whole forum?

Yes, you're right.

 

[meccanicamg]

I think more than 100n you can't apply them.
You should look at the machine directive and then the rules on the economy according to the height and position of the human effort and from there calculate.
I months ago I made a horizontal wagon for jumping use moved by a gearbox reducer and calculated the maximum 100/120n not to exceed.

 

[Danielex46]

I think more than 100n you can't apply them.
You should look at the machine directive and then the rules on the economy according to the height and position of the human effort and from there calculate.
I months ago I made a horizontal wagon for jumping use moved by a gearbox reducer and calculated the maximum 100/120n not to exceed.

thanks to having responded, the information was very useful, greetings daniele