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Secure Mechanical Coupling

You were just talking about them folding with the rest of the rig. They can't do both. Too many bolts to undo.

??? I remove the drill bit once I drill the hole. The force is spread across the many pins. If you have read the thread you would know I am talking about adding grooves in the mating end surfaces of the two main boards so there won't be movement. The added 1x6 boards are really just to hold the pins and spread the force of the single bolt. I don't want to handle more than the minimum number of pieces. In this case two boards and the large bolt holding it all together.

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Rick C 

Presently at Wintercrest Farms 
On the centerline of totality since 1998 
:)
Reply to
rickman
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A single bolt doesn't need to be undone, it's an axle already.

if it's tight you'll never undo it. if it's loose it'll get worse.

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Reply to
Jasen Betts

Then it can't support the towers. Either the towers bolt to the sides or not. The tower thing isn't clean and they get in the way of loading the kayaks. Maybe it could be made to work, but it isn't needed.

Connecting the two sections with an axle is not a great idea. All the force is on one point, one hole.

Lol, I've already got that covered. There are large nuts with handles.

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Rick C 

Viewed the eclipse at Wintercrest Farms 
On the centerline of totality since 1998 
O)
Reply to
rickman

I can't see why not. A bolt parallel to the truck axle allows the towers to lay forward when the rear section is lifted. but doesn't allow any other movement.

use a large diameter, reinforce the hole...

I'm not convinced.

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Reply to
Jasen Betts

If they are bolted to the sides they can't very well move relative to the sides can they?

Or just use something more simple.

Ok.

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Rick C 

Viewed the eclipse at Wintercrest Farms, 
on the centerline of totality since 1998
Reply to
rickman

usually a single bolt is insufficient to stop rotation.

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Reply to
Jasen Betts

A single pivot pin isn't very good for supporting such a brace without a lot of side to side play.

The suspension bridge approach is just too Rube Goldburg for me. The suspension wires will be loose and tangley when folded up and in the way when in use, not to mention difficult to construct to the correct lengths. I don't have any confidence in the strength of the joints and I would have to *make* the pivots. On top of it all, the pivot joint would not be in the right location for the racks to fold on top of one another. The center of rotation has to be at the top edge of the board. If that were practical I would have used a hinge and been done with it.

This is not a solution I have any confidence in building and getting to work well. I think the rapid disassembly solid joint will work better and ultimately be a better solution.

--

Rick C 

Viewed the eclipse at Wintercrest Farms, 
on the centerline of totality since 1998
Reply to
rickman

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