Originally Posted by bobdadruma
Thank you, Thats how I thought that it worked.
The wings keep the tube from spinning and both heads tension from the top lug.
What are the shepherds crooks for on the bottom tension rods?
Those are there for two reasons.
1. They make for quick assembly/disassembly
2. They are the anchor point that keeps the rod from pulling thru as you tighten the top tension rod.
So really there is no bottom tension rod. The main shaft is turned to a smaller diameter at the bottom. The final measurement on it is 5mm which fits all the washers (plastic or metal ).
They say a pic is worth a thousand words ! Ironically this pic is what the patent attorney had redrawn by his artist as it needed to be line drawn !