Hello folks.

I am not actually a metal worker but I do need your help. I wish to join 2 pieces of tube together with a flexible joint. It doesn't need to be a universal joint, it only needs to operate like a hinge. I have attached my rather amateurish pictures to give some idea of what I am looking for. I want to be able to screw the pins into either some wood or plastic and then insert them into the ends of the tubes. The thread diameter needs to be about 6mm and the pins need to be about 75mm long.

As far as the actual hinge barrel is concerned, it should be around 15 - 18mm wide. Don't take too much notice of the actual joint in the pic showing the black plastic inserts. It doesn't really show what I need.

I want the hinge to fold all the way in one direction but in the opposite direction it must not go more than 10 degrees beyond the vertical. This means that some sort of block needs to be incorporated into the design. The barrel metal should not easily be corroded by water.

I don't think I stand a chance of finding this as an off the shelf product - do you?

So I am looking for someone to make me a pair.

If anyone is interested, please contact me to talk about price etc..

Provided things work out OK I might well be needing many more of these in the future.

Something like this any use?

http://www.partridgeshadleigh.co.uk/cat ... p-447.html

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Why isn't the number 11 pronounced onety one?

Thanks for the link, but the Lift-Off Pin Hinges would not be suitable. I need a hinge that would not come apart and the pins must be equally centered above and below the barrel. I have done quite a lot of online searching for the kind of thing I need but I have not yet found anything that does the job. That is why I am now looking for someone to make them.

Cheers.

I know your not after a universal joint hinge would any of these do the job? http://bit.ly/oziLQI

Thanks gromit. This does look more life the kind of thing I need. I have emailed the company to ask them to read this post and hopefully let me know if they can help. It's the fact that I want the hinge to lock at 10 degrees from vertical that I think will be the problem.

I appreciate your input.

Cheers.

what exactly is it for perhaps your solution could be found a different way or with a different coupling

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we are all ------------------still learning

I am afraid that I can't divulge exactly what it is for because it is part of an invention I am working on and that I don't yet have a patent for.

Hi loosends If your idea is to make a prototype to prove your idea works maybe then this http://www.ironmongeryonline.com/product/240mm-Paste-Board-Hinges---Zinc-Plated/822/ modified would work for you as if your idea goes into production then I would think your hinge would be purpose made for your invention.
Best of luck with your project mate. Geoff

a rough idea as the exact movement off the componant then as in ball and socket if mullti plain limited movement
http://bit.ly/xMAas3
or say 2 direction lots off movement or lots off movement in 3 directions

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we are all ------------------still learning

I have been straining my artistic abilities and have produced a not to scale set of pictures that I think gives a better idea of what I need.

I'm sure gromit62 is right when he says that I will need these hinges custom made but I'm hoping some talented individual can create at least one pair so that I can get on with things. If I had the tools I am pretty sure I could make these myself using some 18 to 22 mm brass rod.

Thanks for the good wishes Geoff.

Your idea about the paste board hinges is definitely worth bearing in mind. I think I could use them if I really have to. I could put two pairs together for strength and if I cut down the blades I can insert them into the dowel that goes inside the tubes. It might not look very pretty but I think it would work.

Cheers,

Mark

I have just noticed your signature...



That's a good question but I think more accurately the question should be - Why isn't the number 11 pronounced tenty one?

The trouble is it does make it sound like a description of someone who does a lot of camping. Tenty two must be for the couple who like camping.

how about something like these?
http://www.wixroyd.com/en/catalog/acces ... aled/s1600
you could drill and cut a thread for the bolts to go into it maybe?

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- Dave
http://www.pamperhouse.net
http://www.invertedcircle.co.uk

Thanks Dave. Although these hinges offer some similarity to my requirements, they are in fact more difficult to work with than the paste board hinges suggested by Geoff. These can easily be cut down and the necessary 10 degree angle can be applied without much in the way of modification. I do appreciate you taking the trouble to seek out something that might do the job.

All the best,

Mark