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Join Date: Oct 2016
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Torque Hinge, Pivot Joint, or ? 

11/19/2016 3:27 PM

I've been learning a lot from the member of this forum. So, here I am with another question regarding the project posted here: http://cr4.globalspec.com/thread/109552#comment1175764

Would you please help me figure out what components I need for connecting that lever handle to the upper part (~10kg) and the vertical bar that supports the movement?

How can I know what type of hinge is suitable for that application? Do you know any book about types of joints and their applications that you would recommend?

There seem to be several types of rotational joints, and I can't figure out which type is right for that lever handle and what other components I need to connect it to other parts.

And if we want to use a rotary damper in the central hole of the handle, what other component should we use to provide additional support for the handle? Because apparently rotary dampers need additional support. Mind that rotary damper is the only component I found to slow down a rotational movement. So, please let me know if there are other options for slowing down that motion.

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#1

Re: Torque hinge, pivot joint, or ? 

11/19/2016 3:40 PM

Hinge Types – A Modern Overview — HardwareSource.com

Types of Hinges - Monroe

You really need to learn how to learn.

Have you done ANY web searches before coming here?

Any reading about mechanical design?

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#2
In reply to #1

Re: Torque hinge, pivot joint, or ? 

11/19/2016 3:52 PM

I've been doing web search for a couple of days now. But now I feel more lost than when I started it. Mainly because I don't know what options are available and what their names are. I found one book about designing mechanical joints but it was too general and not so helpful. So, yes, I do need to learn how to learn:/.

Do you know any book or reading material that helps me understand the difference between the function of different joints or hinges available for rotational movement?

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#3

Re: Torque hinge, pivot joint, or ? 

11/19/2016 4:20 PM

You should be able to find something here that will work for your budget...

spring loaded lid support

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#7
In reply to #3

Re: Torque hinge, pivot joint, or ? 

11/19/2016 11:15 PM

This design might work with a little tweaking....counter balancing the weight with a spring, and locking in an upright position....this way the top could be lifted with a small handle....and then a latch to close securely...

http://www.hardwaresource.com/hinges/specialty-hinges/chest-hinges-box-hinges-lid-supports/toy-box-lid-supports/bench-seat-hinge-1

https://www.amazon.com/Sonline-Spring-Loaded-Stainless-Toggle/dp/B00X9HBR5S/ref=sr_1_9?ie=UTF8&qid=1479615180&sr=8-9&keywords=Snap+Latches

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#4

Re: Torque hinge, pivot joint, or ? 

11/19/2016 4:36 PM

That lever off to the right looks like a storage nuisance.

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#5

Re: Torque hinge, pivot joint, or ? 

11/19/2016 6:53 PM

Forget rotary dampers - you'd need a huge one to do this little job (consider the torque!). Way over-engineered/over-priced. Use a linear damper.

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#6

Re: Torque hinge, pivot joint, or ? 

11/19/2016 10:36 PM

Look for shoulder screws and work out how you could use them. Look up finger joint and think about using one of them for the centre pivot. As for damping, use nylon6 washers in the finger joint and tighten the screw/bolt until desired damping is achieved. Look up brass bush, stub axle and tapered roller bearings. Have fun

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