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Old 11th December 2007, 04:00 AM   #1 (permalink)
Ekka
Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some
 
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Join Date: Jan 2007
Location: Brisbane
Posts: 6,848
Default ART Cocoon Pulley

Hey, I've been looking at this "redirect pulley".

Like WTF?

What sort of redirect pulley only allows one leg of rope? And then it has to be threaded through not just open the cheeks, slot it in and hey presto!

This is the con of the century, redirect my ass!

There's a 3mb PDF for it here and page 14 starts the English talk.

http://www.climb-art.com/download/co...CO1_A5_web.pdf

Imagine you have an anchor point and you want to redirect to drop down on a limb. You have 2 lengths of rope that have to be captured in a redirect, old school method is 2 biners opposing gates perhaps suspended by some tape loop. But you have two legs of rope.

So, how are you going to get your lifeline (both legs) running through 2 of these if ya that rich and can afford to but two? Sure you get to feed one end through easily, that's the terminating in ya biner end (still means you have to untie etc), what about the other end, ya gonna pull the whole tail of ya lifeline up and shove it through?

Load of BS!

What ya reckon? Straighten me out if I'm wrong. They market it as a redirect pulley.

From:Doublesnapper - Advanced Ropeclimbing Technology
Quote:
The Cocoon is an innovative redirection pulley designed for the special requirements of rope climbing techniques in tree care. Owing to its versatility, however, it can also be used in a number of other applications.
The Cocoon is tested and certified for personal protection equipment (PPE) in accordance with the European standard EN 12278.
For taking up load it can either be equipped with a certified loop runner or a certified rope sling. As to which types have been approved by the manufacturer, please see the operating manual.
Owing to the completely new design of the locking mechanism, no carabiners are needed. Loop runner or rope sling are clamped directly into the Cocoon body, and protected and secured by a round nut which may simply be tightened by hand (no tools needed!). Because the smooth surface of the sphere-like screw does not offer any contact surface, the Cocoon stays safely locked. The principle underpinning this locking mechanism has been acknowledged and protected by means of an independent patent, including additional priority claims.
The Cocoon is equipped with a friction ring and a safety ring. The former increases friction on the last turns of the thread to ensure that the nut sits absolutely tight. It also keeps dirt out. The latter stays visible as long as the nut is not screwed on tightly and acts as a warning to the user.
The Cocoon not only ?cocoons? the loop runner or rope sling but it also protects the double ball bearing of the pulley.
The body of the Cocoon is made out of a massive block of aluminium (?Konstruktal?)..

Cocoon - Item No. RE71
Sling only - Item No. RE71S
Cocoon incl. Sling - Item No. RE71C
Here's some pics



Attached Images
File Type: jpg cocoon.jpg (4.0 KB, 233 views)
File Type: jpg cocoon2.JPG (33.5 KB, 232 views)
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