Self-tightening nut that provides tight fastening with a unique screw thread

Re:Self-tightening nut that provides tight fastening with a ... by ssharp on Monday November 10, 2014 @12:36PM (#8584916)

I vaguely remember seeing a TV show on amusement parks and thought that mechanics had to check and tighten every every bolt on a roller coaster rather frequently. I wonder if this type of nut would result in any labor savings for them?

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Re:Self-tightening nut that provides tight fastening with a ... by marvin on Monday November 10, 2014 @01:39PM (#8585356)

I don't know a lot about mechanical engineering, but at least in many aviation applications, the issue of nuts coming loose is resolved with a split pin that is bent into a locking shape after the nut has been tightened.

http://www.technologystudent.com/joints/comnut1.htm

Of course, this adds some extra overhead when disassembling the part, but the nut won't come loose unless there's a different problem (e.g. corrosion).

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Re:Self-tightening nut that provides tight fastening with a ... by chii on Monday November 10, 2014 @11:43PM (#8588337)

could the force that is trying to loosen the nut bend the split pin? would the self-tightening bolt perform better in this situation under the same condition?

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Re:Self-tightening nut that provides tight fastening with a ... by moepstar on Monday November 10, 2014 @12:58PM (#8585063)

Probably not, as they still might need to be checked periodically...

At least, that's what i want them to do :P

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