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Hinges for Blanket Chest

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Forum topic by marsy00 posted 10-09-2012 at 08:10 PM 3013 views 0 times favorited 8 replies Add to Favorites Watch
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marsy00

15 posts in 692 days


10-09-2012 at 08:10 PM

Topic tags/keywords: chest hinge hinges

Hello,
I’m building a blanket chest out of black walnut. The lid will be 50.25×25.25×1 which I calculated will weigh approx 29 lbs (3.25 lbs/ft2). I really like Lid Stay Torsion Hinges from Rockler: http://www.rockler.com/product.cfm?page=30958&site=ROCKLER, but I’ve only found ones that go up to a 60 in-lb rating..

My hinges will need to support 366 in-lbs (29 lbs x 25.25 in / 2). Does anyone know of similar hinges that are rated for more torque? Or does someone have a better suggestion? I dont like the idea of using six of these hinges, nor do i want to spend that kind of money.
Thanks!


8 replies so far

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patron

13022 posts in 1978 days


#1 posted 10-09-2012 at 08:28 PM

looks like you will need these to soft close

http://www.rockler.com/product.cfm?page=410&rrt=1

125lb’s each

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

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MJCD

452 posts in 1008 days


#2 posted 10-09-2012 at 09:40 PM

The Rockler calculator is very conservative; in that, it will over-recommend the number of hinges. I recently completed a Cherry Blanket Chest – the lid had an ‘effective’ weight of 180 lbs – Rockler recommended 3×60; they had two in-stock, which I used – the lid works perfectly with 2×60.

Appreciate that the 60 in-lb rating will tax the holding strength of the hinge screws – the wood and the screws can handle only so much, regardless of the hinges’ mechanical capabilities. If higher-capacity hinges are available, I’m not sure the wood could handle the torque.

On mine, see pictures below, I placed a spacer between the hinge and top – the spacer is glued to the top – spreading the load, with the hinge connected to the spacer: if the spacer is stripped, it can be replace.

My recommendation is to use something less than the 6 (probably 4 or 5, which should look fine); if you need more; we’ll you’ll need more, and can put them on later – I appreciate the layout issues with this, as you would want to equally space 6 or 4, and do not want to make it look like an add-on, or after-thought
MJCD

-- Lead By Example; Make a Difference

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MJCD

452 posts in 1008 days


#3 posted 10-09-2012 at 09:46 PM

Follow-up:

On the Rockler site, please read all of the user comments – several noted that the screws supplied with the hinges were, in their view, undersized for the task; also, that some of the screws snapped during installation because of the twisting force during installation. I pre-drilled the holes and used slightly larger stainless steel screws – my choice, for your consideration.

I hope this helps.

-- Lead By Example; Make a Difference

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MJCD

452 posts in 1008 days


#4 posted 10-09-2012 at 11:05 PM

Patron’s solution looks like the better choice – I think it will be a) less demanding on the wood contacts; 2) handle your requirements in a less obtrusive and expensive manner.

I would check the user comments, though; these are usually very knowledgeable craftsman.
MJCD

-- Lead By Example; Make a Difference

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MT_Stringer

1867 posts in 1868 days


#5 posted 10-09-2012 at 11:55 PM

The lid on the toy box I just finished was made out of white pine so it wasn’t very heavy. I used a piano hinge and two of the lightweight lid protectors sold by Rockler. It won’t close on it’s own, thus protecting little fingers. You have to shut it.

http://lumberjocks.com/projects/72425

-- Handcrafted by Mike Henderson - Channelview, Texas

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MonteCristo

2095 posts in 826 days


#6 posted 10-10-2012 at 12:41 AM

Brusso makes an awesome hinge for a chest like this. You bury it in the top edge of the side (at the back). Pricey but beautiful solid brass.

-- Dwight - "Free legal advice available - contact Dewey, Cheetam & Howe""

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HorizontalMike

6928 posts in 1551 days


#7 posted 10-10-2012 at 12:45 PM

I used the “Lid Supports” that @Stringer mentions, however with my Ash Blanket Chest it took three of them to handle the weight. Maybe a combination of these and the torsion hinges might be an acceptable answer.

-- HorizontalMike -- "Woodpeckers understand..."

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marsy00

15 posts in 692 days


#8 posted 10-10-2012 at 12:49 PM

Wow, thanks everyone for all the suggestions. Great feedback!

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