Hello!
Today I received a triple-glazed window (height 120 cm, width 323 cm) that needs to be installed indoors at a height of about 4 meters. Initially, three of us strong individuals tried to lift it from the yard into the house. We managed 5 meters but gave up, and then there were five of us carrying it, and we got it into the house. Someone guessed it weighed 300 kg, and that could certainly be the case.
I initially thought of lifting it with ropes from an existing scaffolding that's indoors, but now realize that the lifting needs to be done in a smarter way.
Renting a material lift, like http://www.cramo.se/Web/Core/Pages/WebDepotProduct.aspx?id=32043&epslanguage=SV, doesn't feel ideal since it weighs 200 kg and I have 43 steps to the house.
I saw that Jula has a hand winch, http://www.jula.se/handvinsch-334064, that's primarily meant for installation on, for example, pick-up trucks or trailers. I think Biltema states that these shouldn't be used for lifting, only for pulling. But SHOULDN'T you be able to use two of these? One at each end of the window, attached to a beam, which in turn is attached to the scaffolding or wall.
Another idea is to lift with a block and tackle, like http://www.jula.se/talja-334055, but what would the mechanical advantage be here? If I pull with the equivalent of 1 kg of force, how much do I get out? I'm a bit worried about this method since I'd prefer to have a backstop, which the hand winch has.
I welcome any ideas that can solve my problems...
Best regards,
/Björn
Today I received a triple-glazed window (height 120 cm, width 323 cm) that needs to be installed indoors at a height of about 4 meters. Initially, three of us strong individuals tried to lift it from the yard into the house. We managed 5 meters but gave up, and then there were five of us carrying it, and we got it into the house. Someone guessed it weighed 300 kg, and that could certainly be the case.
I initially thought of lifting it with ropes from an existing scaffolding that's indoors, but now realize that the lifting needs to be done in a smarter way.
Renting a material lift, like http://www.cramo.se/Web/Core/Pages/WebDepotProduct.aspx?id=32043&epslanguage=SV, doesn't feel ideal since it weighs 200 kg and I have 43 steps to the house.
I saw that Jula has a hand winch, http://www.jula.se/handvinsch-334064, that's primarily meant for installation on, for example, pick-up trucks or trailers. I think Biltema states that these shouldn't be used for lifting, only for pulling. But SHOULDN'T you be able to use two of these? One at each end of the window, attached to a beam, which in turn is attached to the scaffolding or wall.
Another idea is to lift with a block and tackle, like http://www.jula.se/talja-334055, but what would the mechanical advantage be here? If I pull with the equivalent of 1 kg of force, how much do I get out? I'm a bit worried about this method since I'd prefer to have a backstop, which the hand winch has.
I welcome any ideas that can solve my problems...
Best regards,
/Björn
The window weighs only about 155kg... so you weren't particularly strong! 😄
Sometimes when I install windows that, for some reason, can't be installed from the inside, I use a ladder with an attached winch. I have the winch mounted about 80cm up the ladder, and the cable goes to a pulley that I have attached to an iron piece fixed to two rungs (to avoid putting stress on a single rung). The cable then goes to a bracket with two suction cups. I attach the suction cups to the pane and then winch the window up to the window opening. You might need help from someone to receive the window and guide it into the opening and someone to guide the window with an attached rope so that it doesn't scrape against the house wall if it starts to rotate a bit.
Search on YouTube a bit and you will see the principle. Search for "Ladderlifter"
Sometimes when I install windows that, for some reason, can't be installed from the inside, I use a ladder with an attached winch. I have the winch mounted about 80cm up the ladder, and the cable goes to a pulley that I have attached to an iron piece fixed to two rungs (to avoid putting stress on a single rung). The cable then goes to a bracket with two suction cups. I attach the suction cups to the pane and then winch the window up to the window opening. You might need help from someone to receive the window and guide it into the opening and someone to guide the window with an attached rope so that it doesn't scrape against the house wall if it starts to rotate a bit.
Search on YouTube a bit and you will see the principle. Search for "Ladderlifter"
Hello and welcome to the forum!
I have lifted building elements with a similar winch. In that case, it was things that weighed just under a hundred kilos, but it didn't feel completely stable. One problem is mounting the winch in a reasonable way. You can't bolt it to the wall, because then you won't be able to turn the crank, so you have to build some kind of frame to attach it to.
(@verktygsgurun: how do you know what TS's window weighed?)
I have lifted building elements with a similar winch. In that case, it was things that weighed just under a hundred kilos, but it didn't feel completely stable. One problem is mounting the winch in a reasonable way. You can't bolt it to the wall, because then you won't be able to turn the crank, so you have to build some kind of frame to attach it to.
(@verktygsgurun: how do you know what TS's window weighed?)
Thanks for your exciting answers! Fantastic reception you get here as a newcomer!
I looked at "ladderlifter" on YouTube, but I'm wondering if it could work with a trailer winch from Jula (http://www.jula.se/handvinsch-334064) with 10 meters of cable. You fasten two 50 cm long battens (like 45x195), one on each side of the ladder at a height of one meter. Supports between the battens that rest against two rungs of the ladder. You bolt the hand winch to the outer edge, so that the crank can turn. The cable goes all the way up to the top of the ladder, which is above the highest point of the window opening, through a pulley, and then down to the top edge of the window. There you attach the hook to a strap that's around the window. You secure the lower end of the ladders, so everything is steady. We now have two ladders and two winches, one at each end, and can start cranking!
When the window has reached the correct height, you need to maneuver in the lower part of the window, hold the upper part of the window (I have an existing 7-meter-high scaffold, which can stand between the ladders), release the tension in the cables, and push the upper part of the window in. Then you just remove the strap!!
Will this work with Jula's winch? Will it be as easy in reality as in my theoretical description?
What do you think?
Best regards,
/Björn
I looked at "ladderlifter" on YouTube, but I'm wondering if it could work with a trailer winch from Jula (http://www.jula.se/handvinsch-334064) with 10 meters of cable. You fasten two 50 cm long battens (like 45x195), one on each side of the ladder at a height of one meter. Supports between the battens that rest against two rungs of the ladder. You bolt the hand winch to the outer edge, so that the crank can turn. The cable goes all the way up to the top of the ladder, which is above the highest point of the window opening, through a pulley, and then down to the top edge of the window. There you attach the hook to a strap that's around the window. You secure the lower end of the ladders, so everything is steady. We now have two ladders and two winches, one at each end, and can start cranking!
When the window has reached the correct height, you need to maneuver in the lower part of the window, hold the upper part of the window (I have an existing 7-meter-high scaffold, which can stand between the ladders), release the tension in the cables, and push the upper part of the window in. Then you just remove the strap!!
Will this work with Jula's winch? Will it be as easy in reality as in my theoretical description?
What do you think?
Best regards,
/Björn
Triple-glazed windows with 4mm glass weigh about 40kg/sqm.andersmc said:
Exactly, that's how you do it..lift up, push in the bottom of the window and lower slowly, then fold in the rest of the window and release the straps.mdfbjorn said:
And this thing with Biltema's warning that the boat trailer winch should only be used "for pulling" and "not for lifting" - how should that be interpreted? Does the winch work for lifting, as I describe it?
/Björn
/Björn
I would think that if you are going to sell the winch as a lifting aid, it should undergo certain tests, which Biltema has not done with this one, hence their disclaimer.
It will probably work, but make sure the consequences are not disastrous if a winch were to fail.
Regarding the gearing on the block you linked to, it's hard to see how many "pulleys" it has.
Simply put, you can take the number of times the rope turns, and that's your mechanical advantage.
Single rope: 1X
The rope turns via a wheel at what you are lifting: 2X
The rope turns once more at the top and is attached to what you are lifting: 3X
And so on...
It will probably work, but make sure the consequences are not disastrous if a winch were to fail.
Regarding the gearing on the block you linked to, it's hard to see how many "pulleys" it has.
Simply put, you can take the number of times the rope turns, and that's your mechanical advantage.
Single rope: 1X
The rope turns via a wheel at what you are lifting: 2X
The rope turns once more at the top and is attached to what you are lifting: 3X
And so on...
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If you have the opportunity to place the window on the stand and do a retake, I would use a hoist, meant for lifting and you don't have to wear yourself out.
http://www.biltema.se/sv/Bil---MC/Verktyg-och-Verkstadsutrustning/Lyftverktyg/Lyftblock-1-ton-15914/
http://www.biltema.se/sv/Bil---MC/Verktyg-och-Verkstadsutrustning/Lyftverktyg/Lyftblock-1-ton-15914/
If the cable goes through a pulley, then it's not a lift. You need to guide the cable a bit so it wraps neatly when you reel it in, otherwise it's easy for the cable to bunch up and lay on top instead of next to each other. It can cause unpleasant jerks when the cable jumps.mdfbjorn said:
Probably, there are somewhat higher security requirements if one is to lift than if one is to pull a boat onto a trailer.
The likelihood that the boat will withstand a launching is probably greater than that the window will survive if the winch fails.
The likelihood that the boat will withstand a launching is probably greater than that the window will survive if the winch fails.
Isn't it possible to build a two-level scaffolding? One at two meters and one at four meters? Then you could basically "roll" up the window......
Regardless of how you do it, we want to see pictures and videos of the result. Either as a cautionary tale in the construction bloopers thread, or here as instructional material...
Regardless of how you do it, we want to see pictures and videos of the result. Either as a cautionary tale in the construction bloopers thread, or here as instructional material...
Thanks everyone! I have now been to Jula and acquired two hand winches, two pulleys, two eye bolts, etc.
Now I'm going out to set it all up and test lift a 45x195 beam to see if I can reach properly, etc.
It will be exciting, but I am NOT planning to broadcast live, MathiasS!!
But if it goes well, there might be a photo. If it goes poorly... no, it just can't go poorly!!
Best regards,
/Björn
Now I'm going out to set it all up and test lift a 45x195 beam to see if I can reach properly, etc.
It will be exciting, but I am NOT planning to broadcast live, MathiasS!!
But if it goes well, there might be a photo. If it goes poorly... no, it just can't go poorly!!Best regards,
/Björn
You know that there are high demands for reporting back here on the forum. And as mentioned, there are threads for things that didn't go so well, and other threads for those that went a little better... Good luck..!