Custom American Made Re-Direct Carabiner

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jomoco

Tree Freak
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Ok guys, here's an opportunity to improve our bag of tricks by helping an American carabiner company design a new bodyline re-direct carabiner.

I'm sure all the pro climbers here have at one time or another used a nylon loop strap with a carabiner to create a bodyline re-direct when working large wide trees, it's a neat trick that enhances a climbers safety and stability aloft.

This neat trick unfortunately has an annoying drawback directly related to the two upper support body lines abraiding against each other within the carabiner itself. Now my trick to avoid this annoying and power draining friction is to use two carabiners on the nylon loop strap with a single wrap on the redirect support wood. This way each upper bodyline has its own carabiner and no friction or binding between the two upper lines occurs making climbing on a redirect a pleasure rather than a pain.

In my opinion a custom carabiner designed specifically for use as a climbing line re-direct would sell well in the arborist and recreational climbing market.

The design of the biner itself is very simple, take two typical biners lay them down in front of you with the gates facing outward horizontally, that's what the new re-direct biner should look like, a single biner with gates on each side and the vast bulk of its structural support coming vertically straight down the middle with a captive eye on the top, rightside gate for one rope, leftside gate for the other, and the main center structural support member effectively separating the two ropes eliminating unnecessary binding.

I have spoken with the lead design engineer at this American company in the PNW, and he was very receptive to the concept and requested I send him a few basic design drawings to go over with his design team.

All I have on my computer is a very crude paint drafting software program to work with at home.

So I figured that any of you climbing pros here that actually understand what I'm trying to do here, and actually think it might be an excellent addition to the professional bag of tricks, this is an excellent opportunity to take an active online role in designing a carabiner for an American manufacturer.

My computer skills suck, and I know a few of you guys are pretty dang adept at climbing and computer drafting.

Let's see a few designs that I can forward to the great PNW!

What about you Ekka? Do you want to get involved in a little yankee innovation to improve our industry internationally?

jomoco
 
I had a similar idea. I'm trying to figure out how to make it retrievable though.

This was posted as an April fools joke http://www.czechclimbing.com/clanek.php?key=4711
but with a spine down the middle and pulleys like the DMM Revolver http://gear.sherrilltree.com/iwwidb.pvx?;multi_item_submit should make a nice redirect.


Mike

Interesting thing about my method of using two biners and a strap as a re-direct is that if you use a leather tube cambium saver in your primary TIP, this will make the re-direct retrievable from the ground because the tail will go though one of the redirect biners with its wraps of duct tape or a single knot, then pull the CS from the primary TIP before the CS hits the remaining biner at the re-direct and pulls the strap and both biners to you on the ground.

As long as the knot or duct tape wraps on the tail of the bodyline can pass through one of the re-direct biners on the way up as you pull your bodyline out from the ground, the cambium saver will pull the re-direct out on the way down!

I have done this many times, and know for a fact that it works in so much as you dont take too many wraps on the wood with the re-direct's nylon loop strap, and many times no wraps are needed on the re-direct in certain situations.

Try it out sometimes if you have the leather tube CS.

jomoco
 
Ya, what about the strap? I can't visualize how you'd get it out from the ground....OH..thought about it, it will work if you have two separate crabs just looped over the branch...duh...becomes a problem for your suggested 'all in one' redirect crab though

As for the design, how about a fixed eye at the top, then the strap can be girth hitched evenly...or clipped separately in each side.
So an 'egg' shape overall: narrow end has an eye, then down either side to a gate, and the central divider connecting the eye and the bottom 'fat end'.

I want 75% if you use my suggestion...:) :)
 
i like the basket. its easy and strong. you can retreive straps from the gound, with a throwline tied to a girth hitch.

BUT you still have to disconnect the biner from the strap!
 

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