Hoisting large area object tight to roof?

cormie

Hey folks,
I'm trying to hoist something that's 200x100x10 and about 40kg, tight to a roof, which I could then use ratchet straps to secure for no movement too.

I've looked at hand winches which seem affordable for the use, but I think the fact I want it tight to the roof means this won't really work as is, as I won't be able to reach in to crank the handle, and also the handle will then be in the way of it getting tight to the roof.

Can anyone suggest a method that would allow this? I've drawn it out in the attached, along with a possible solution, but I'm still thinking there might be too much space left between the object and the roof if the pulley right above is too big, or if the chains aren't taut enough?

This needs to be completely modular, so it's not fixed to any tracks etc. The set up is kind of complicated, but it means I can't have any tracks and a removable/quick release system is all I can do

Any suggestions would be appreciated

Lumen

40kg is not heavy. Pulleys?

edit: like this but heavier duty

https://www.amazon.com/StoreYourBoard-Surfboard-Ceiling-Storage-Hi-Lift/dp/B07DGN418C

Calahonda52

What height is involved?
Is the outside face smooth, to use a number of glass lifters?
is there room for an alu mobile platform?

Roof or ceiling ?

40kg is nothing?

listermint

Tbh, Id go to a proper metal fabricator OR get your welding skills in order and make a roof rack that can be dropped to the side of the van.


40KG is nothing, but if its to be moved up and down all the time then hinging it and controlling with an actuator or trunk style pistons would be better than any sort of ratchety slow nonsense.

my3cents

http://www.4wdaction.com.au/forum/viewtopic.php?t=104912

Wildly Boaring

40kg?

Set up the straps

Get someone of reasonable strength to lift and hold there. Maybe even 2 people

Ratchet home

antiskeptic

cormie wrote: »

Hey folks,
I'm trying to hoist something that's 200x100x10 and about 40kg, tight to a roof, which I could then use ratchet straps to secure for no movement too.

I've looked at hand winches which seem affordable for the use, but I think the fact I want it tight to the roof means this won't really work as is, as I won't be able to reach in to crank the handle, and also the handle will then be in the way of it getting tight to the roof.

Can anyone suggest a method that would allow this? I've drawn it out in the attached, along with a possible solution, but I'm still thinking there might be too much space left between the object and the roof if the pulley right above is too big, or if the chains aren't taut enough?

This needs to be completely modular, so it's not fixed to any tracks etc. The set up is kind of complicated, but it means I can't have any tracks and a removable/quick release system is all I can do

Any suggestions would be appreciated

You appear to be talking about a ceiling, not a roof. A person on each corner standing on chairs will hoist it and press it tight.

You aren't clear on what you want to do with it. Is a platform that you want to raise and lower (a dining table occasions, a pool table?). Or something you want to fix to the ceiling? In which case screw into the ceiling joists

Victor

Do you want to say what the object is? Bedroom mirror?

cormie wrote: »

I'm trying to hoist something that's 200x100x10

Are the measurements in cm?

Does it need to be removable? If not, just prop it up and fix it at regular intervals to the joists.

However, note that ceiling joists are typically much smaller than floor joists. 40kg should be OK, but heavier weights should have the joists checked.

the_pen_turner

hire out a plasterboard lift

al2009

A plasterboard lifter would be good, these are a different type.

https://www.refco.ch/en/news/installation-lifter--lft-230__6.php

M.T.D

The diagonal chains joined in the centre will put a lot of strain on what ever you are trying to lift. and the tighter flatter you try to go the more the strain.
A pulley at each corner all fed to a single point would do the job and keep it level.