Author Topic: Cummerbund back attachment solutions  (Read 1014 times)

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Bootcat

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Cummerbund back attachment solutions
« on: January 23, 2018, 01:36:33 AM »
Hello,

I'd like to pick your brains about the different systems out there used for attaching and adjusting cummerbunds on vests.
I'm facing a decision to choose a system for a range of laminate lasercut cummerbunds that may or may not adjust in the front (velcro or ROC buckle closure).
The cummerbund will attach under a PALS layer (opening via flap) on the back. No QD system is required.

Here are the choices I see:
- laced cord (think Eagle Industries PC) with cord locking hardware;
- laced thick elastic cord (think Crye JPC) with a knot;
- laced thin elastic cord with cord locking hardware (Eagle MMC);
- elastic webbing and velcro (any covert carry plate carrier on the market);
- vertical bars locking in PALS slots (IOTV Gen3);

What do you think is optimal? Or are there other good solutions that I didn't consider?

Gear Dynamics

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Re: Cummerbund back attachment solutions
« Reply #1 on: January 23, 2018, 05:48:34 AM »
I like the elastic shock cord options. Not only can you adjust the fit, but it’s nice to have the expansion of the elastic. I wear the issued CAF armour all the time. It doesn’t have a cummerbund, just four elastic webbing straps with Velcro. I tend to wear it tight, so when I run, it doesn’t move around and I can still breath.

Adjustability in the front, while wearing the armour is pretty nice. I know you specifically said it might be static, but you should strongly consider designing something that is adjustable while the user is wearing the system. Those who have worn armour for long periods of time will appreciate the ability to quickly tighten and loosen, even if it’s just small amounts.

Bougear

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Re: Cummerbund back attachment solutions
« Reply #2 on: January 23, 2018, 06:54:02 AM »
I put a double pass of elastic with a cordloc on top.

essal

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Re: Cummerbund back attachment solutions
« Reply #3 on: January 23, 2018, 11:49:25 AM »
I've used 1/8" shock cord in the back, pretty similar to what Bougear posted. Just open the rear flap and adjust the cord if you need to do any chances to how loose/tight you want it.
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Bootcat

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Re: Cummerbund back attachment solutions
« Reply #4 on: January 25, 2018, 01:42:23 AM »
Thanks guys.

I didn't think about doubling the thin shock cord, that gives us the correct tension when the cummerbund is loaded.
Also, there is a flat cordloc used on the Alice pack that's better suited to cords pulling on opposite directions.

thewolf

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Re: Cummerbund back attachment solutions
« Reply #5 on: January 25, 2018, 05:57:51 PM »
I personally like the old paraclete style of verticle bars with elastic  for a bit of give. That way you can lose the flap on the rear and still weave a pouch over the verticle bars.

Gear Dynamics

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Re: Cummerbund back attachment solutions
« Reply #6 on: January 25, 2018, 07:35:22 PM »
Pictures when you are done!

flimmuur

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Re: Cummerbund back attachment solutions
« Reply #7 on: January 26, 2018, 12:18:39 AM »
I'm going with the Crye style myself.  To make it cross compatible with PCs that use a velcro flap round the back, I've got a lasercut laminate insert, with slots cut for the cummerbund to slide through.  Lasercut loop with slots on the front too.  I'll post up some photos when I'm free.
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Bootcat

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Re: Cummerbund back attachment solutions
« Reply #8 on: January 26, 2018, 12:52:16 AM »
Pictures when you are done!

Well the current retrofit cummerbund looks like this:

Other pics are at https://www.tigertailor.com/shop/fr/platformes/213-cummerbund-roc-hybride-style-jpc.html

My point was to find a good solution for other cummerbund styles where the JPC compatibility is not required.

flimmuur

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Re: Cummerbund back attachment solutions
« Reply #9 on: January 26, 2018, 04:20:11 AM »


My version has velcro loop on the top as well (extra effort, may or not be worth it), with narrower slots.
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Bootcat

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Re: Cummerbund back attachment solutions
« Reply #10 on: January 26, 2018, 04:22:37 AM »
I'm surprised that you oriented the buckles for opening down. Did you consider that if you tug on the cord the whole thing falls off vs staying put if you orient for opening up?

flimmuur

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Re: Cummerbund back attachment solutions
« Reply #11 on: January 26, 2018, 04:32:55 AM »
I was thinking that pulling downwards (ie away from yourself) would be more instinctive than pulling upwards (towards yourself), if you've got limited mobility/in confined spaces.
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mogensbeck

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Re: Cummerbund back attachment solutions
« Reply #12 on: January 27, 2018, 01:57:05 PM »
I was thinking that pulling downwards (ie away from yourself) would be more instinctive than pulling upwards (towards yourself), if you've got limited mobility/in confined spaces.

Correct, I have also planned the pull down on the ROCbuckles on the platecharrier I am designing.

ManMarVelez

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Re: Cummerbund back attachment solutions
« Reply #13 on: January 27, 2018, 02:27:55 PM »
Wide elastic with Velcro. Velcro just to prevent sliding. Dislike Crye style.

Bootcat

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Re: Cummerbund back attachment solutions
« Reply #14 on: January 30, 2018, 12:57:22 AM »
I was thinking that pulling downwards (ie away from yourself) would be more instinctive than pulling upwards (towards yourself), if you've got limited mobility/in confined spaces.

Correct, I have also planned the pull down on the ROCbuckles on the platecharrier I am designing.

Generally some styles are reversible so the user can choose that. I'll give a try to the pull down orientation.