I've found a couple of actuators that can pull and hold a force of 10kg... anyone have any idea if that would be enough to pull-on a spot-caliper and hold a 275kg vehicle?
Cheers!
I've decided to go with a spot-caliper on the single-rear wheel of the reverse-trike and fancy controlling it with a linear actuator as I'm
struggling for room for a handbrake-lever.
I've found a couple of actuators that can pull and hold a force of 10kg... anyone have any idea if that would be enough to pull-on a spot-caliper
and hold a 275kg vehicle?
Cheers!
Does it fail on or off when you have a power failure? I thought the emergency brake had to be mechanical.
does that mean they'd need to be powered to hold the brake on or off ??
(as much as I hate them) what about the motors off one of the modern cars that winds in the handbrake cable (like a disco3 for example)
I assume they have some kind of failsafe built in....
[Edited on 1/11/2011 by mcerd1]
Good points!!!
These are the details here...
eBay - The UK's Online Marketplace
[9.The ‘parking’ braking system must be capable of being operated using a control which is independent of the service brake, and once applied capable
of being maintained in the ‘on’ position solely by mechanical means.]
IVA manual, Brakes, 09A, para 9.
Cheers,
Nev.
[Edited on 1/11/11 by Neville Jones]
The Disco ones would be fine for two handbrake calipers across a shared axle, but no use for a single caliper.
the disco one just winds in a certain number of turns - we found out when it lost the adjustment and never actually wound in enough to pull the brakes
on 
thinking of a car at least, with a lever (giving better mechanical advantage) you'd have to pull about 10kg at least to get it to work, without a
lever to pull on, i don't know, but even 20kg pulling direct on the end of the cable i wouldn't expect to be enough.
and it looks llike the arm is plastic. i wouldn't fancy it.
they look ok for pushing or pulling something back and forth, something which won't need a constant pull after its moved.
KISS
quote:
Originally posted by matt_gsxr
KISS
quote:
Originally posted by wylliezx9r
quote:
Originally posted by matt_gsxr
KISS
KEEP IT SIMPLE STUPID ?
KISS is fine if you have space for a handbrake-lever... I don't!
^^ you could go under the steering wheel (like the dax ones)
or one on the outside of cockpit like an old Bentley?
class act with polished silver handle,....!
I think you'd be looking at 5-10 times that force at least. There are loads of modern cars with electric park brakes, I'm sure one would be
suitable.
Because it must be held on by mechanical means, you'll need something that operates using a screw type actuator so it stays where it is when
powered off.
[Edited on 1/11/11 by matt_claydon]
quote:
Originally posted by matt_gsxr
KISS
quote:
Originally posted by matt_claydon
I think you'd be looking at 5-10 times that force at least...
2CV handbrake pulls out from under the dash
quote:
Originally posted by scootz
KISS is fine if you have space for a handbrake-lever... I don't!
quote:
Originally posted by adithorp
quote:
Originally posted by matt_gsxr
KISS
That, from you! PMSL
quote:
Originally posted by scootz
KISS is fine if you have space for a handbrake-lever... I don't!
quote:
Originally posted by 02GF74
quote:
Originally posted by scootz
KISS is fine if you have space for a handbrake-lever... I don't!
footbrake, like in Mercs?
hello ,
on my MNR i used VW passat rearcaliper, they have a electric handbrake thats iva proof.
Very easy to wire and they keep activated also when power fails.
Greetings