F: Frame Heim joints

vibrac

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Im like a kid with a new toy now I know another name for ball joints :) To avoid spoiling the front brake thread here is my use of them on my sub frame at present on my Comet. NB its got a large seat on at the moment
1595678572742.png
 

Robert Watson

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If I recall they are called Heim joints because that was the name of the man or company that invented them. Much like a vacuum cleaner (especially in the UK) is called a Hoover. So I just looked at Wikipedia.

The spherical rod end bearing was developed by Nazi Germany during World War II.[1] When one of the first German planes to be shot down by the British in early 1940 was examined, they found this joint in use in the aircraft's control systems. Following this discovery, the Allied governments gave the H.G. Heim Company an exclusive patent to manufacture these joints in North America, while in the UK the patent passed to Rose Bearings Ltd.[2] The ubiquity of these manufacturers in their respective markets led to the terms heim joint and rose joint becoming synonymous with their product. After the patents ran out the common names stuck, although as of 2017 "rosejoint" remains a registered trademark of Minebea Mitsumi Inc.,[3] successor to Rose Bearings Ltd. Originally used in aircraft, the rod end bearing may be found in cars, trucks, race cars,[4] motorcycles,[5] lawn tractors, boats, industrial machines, go-karts, radio-control helicopters, formula cars,[6] and many more applications.
 

Nulli Secundus

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If I recall they are called Heim joints because that was the name of the man or company that invented them. Much like a vacuum cleaner (especially in the UK) is called a Hoover.

My father always corrected my mother for saying she was doing the hoovering when she had an Electrolux. So it was vacuuming cleaning in his house as it has always been in my UK house too, whatever the term is referring to.......

Back onto Heim joints before I have to tell myself off.
 

Chris Launders

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Is there any particular reason for the diagonal strut that you've fitted them to, I only converted mine last week and just have the two from the back of the seat down.
 

Martyn Goodwin

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Is there any particular reason for the diagonal strut that you've fitted them to, I only converted mine last week and just have the two from the back of the seat down.
With the Vincent seat (other than Flash or lightning) with a simple single strut suspended seat, when you place a load on the seat there is an induced turning moment applied to those 2 small legs at the seat front. Hit a big enough bump or even a small one sufficient times and the photo shows what eventually happens. Fit the strut you ask about and the stress is removed from those vulnerable legs.

P1060038aaa.jpg
 

Martyn Goodwin

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This is how I did it. Nothing fancy just a tab welded onto the seat strut and a bit of scrap steel strip.
P1060031aaa.jpg
Read the full item from OVR, attached.
 

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  • A Fully Suspended Vincent Seat.pdf
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Vincent Brake

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My father always corrected my mother for saying she was doing the hoovering when she had an Electrolux. So it was vacuuming cleaning in his house as it has always been in my UK house too, whatever the term is referring to.......

Back onto Heim joints before I have to tell myself off.
That doesn't translate well back to where you came from....
 

stu spalding

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Is there any particular reason for the diagonal strut that you've fitted them to, I only converted mine last week and just have the two from the back of the seat down.
Hi Chris. I just use the single struts which also double as the base for a luggage rack. I reinforced the seat front mounting to avoid Martyn's problems in the photo above. I also extend the angle iron brace on the top of seat base to include the front mounting and seat brackets. Cheers, Stu.
 
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