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Transportation The Military United States Technology

Navy Tests Unpowered Exoskeleton 79

gurps_npc (621217) writes "CNN has a very interesting article about an unpowered exoskeleton system called Fortis. Unlike the more famous TALOS system, this exoskeleton uses zero electricity, so it does not need batteries or an extension cord. Power requirements have always been the problem with powered exoskeletons, as batteries are heavy. The system is made out of lightweight aluminum and heavy tools connect directly to it. The weight of the tools is supported by the exoskeleton, so your arms, back and legs don't have to carry it. You only need to use muscle to move the tool, not simply carry it. The exoskeleton does not make you stronger. Instead it effectively increases your stamina by relieving fatigue caused by carrying the heavy tool.
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Navy Tests Unpowered Exoskeleton

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  • Balance (Score:2, Interesting)

    by Anonymous Coward

    Sounds interesting, but I'd be concerned about keeping balance while carrying dangerous equipment; the body's micro-adjustments would surely be diluted by the external weight, sort of like being on stilts.

    • by Anonymous Coward
      Polio victims were eventually able to figure out how to walk in those old braces, so my guess is that this cannot be worse.
    • There looks to be a pole sticking out the back that you could put weights on for balance purposes.
      • I hope this is automatic - as you move the tool away from the body's center of mass, the weight "tail" lowers to counterbalance; and as you pull the tool closer, the weight tail lifts.
    • by goombah99 ( 560566 ) on Tuesday October 14, 2014 @11:45AM (#48141063)

      How does this work. They show a guy with a grinder mvong it around on a wall up near his head. Now how did he get into that position and how is he able to move the grinder around. If all the joints are loose then they offer no support. If they are tight then he can't move. And if he selectively locks the myriad number of joind it will be a confusing puzzle to get the the right set locked to support weight along some axis but not others. Does this mean all grinding must be back and forth and not up and down? if you are grinding along a verical edge how do you avoid repeately lifting this.You would be lifting both the weight of the grinder and the weight of the fortis frame every time.

      the frame looks heavy including a cantaleivered weight in the back. SO it seems like its adding a lot of weight. How does it manage to carry it's own weight as you move. Or are you repeately lifting this when you bend over or walk somewhere.?

      very puzzling how this works

      • The attachment to the tool seems to be based on a 'steady cam', so search for that on youtube and you'll see the counter spring system in action. It has to be adjusted for the weight and balance of the tool in use. It isn't for picking just anything up, it's meant to ease the burden of using specific known in advance heavy tools and looks like it could well help. If it helps enough to be worth the setup and expense then it's worth it, and if they've got the weight transfer to the ground working they've prob
      • It looks like a spring loaded swing arm that supports the bulk of the weight of the tool [these are already made to be mounted to work benches] connected to a harness only with a brace like structure that allows the wearer to shift the weight from their back and waist to rest on the ground.

        Alternatively they could put the the swing arm on casters with an adjustable base and just roll it around.

    • by plopez ( 54068 )

      Part of it looks like weight distribution and load balancing across the body. Weight lifter and back packers have learned long ago that managing heavy loads can be about distribution of the load and balancing (which is why I still think free weights are more effective as they rely on more muscles to control and balance the load). Then it looks like it might provide more leverage in some cases. Not a bad "low tech" approach.

    • Just watch 'Predator' how the guy uses the minigun.

    • by F34nor ( 321515 )

      http://www.actionmoviefreak.co... [actionmoviefreak.com]

  • Snipers love it (Score:3, Interesting)

    by Anonymous Coward on Tuesday October 14, 2014 @11:15AM (#48140789)

    A friend of mine worked as a mercenary in Bosnia and he is a sniper.
    He said anyone carrying heavy equipment is a priority. Looks like you
    put that thing on someone up on that hill already has a bullet chambered
    with your name on it.

    • This is meant to be used inside bases. How many Americans have been killed by snipers while inside their bases recently?

      • Do we count Fort Hood or not?

      • Re:Snipers love it (Score:4, Insightful)

        by jeffmeden ( 135043 ) on Tuesday October 14, 2014 @01:00PM (#48141909) Homepage Journal

        This is meant to be used inside bases. How many Americans have been killed by snipers while inside their bases recently?

        Even more specifically, it seems ideal for someone working in/on the hull of a Navy ship where heavy welding, cutting/grinding, and riveting equipment is common. They tend not to build navy ships in conflict areas, and it seems like a very impractical device for combat zone use unless the weight it was intended for was body armor, making the sniper point moot yet again.

        • I could see it being useful to load munitions at a combat base. But our bases have proven to be quite safe.

        • by plopez ( 54068 )

          Maintenance on armored vehicles and heavy, 6-by type, trucks also come to mind. Possibly some construction engineering work.

  • by geekoid ( 135745 ) <dadinportland&yahoo,com> on Tuesday October 14, 2014 @11:16AM (#48140795) Homepage Journal

    I like it. I would have loved to have something like that back when I hung drywall.

  • by rolfwind ( 528248 ) on Tuesday October 14, 2014 @11:18AM (#48140819)

    I suppose this is for naval shipyards and the like?

    That current counterbalance has got to go though. It's dangerous to both the wearer and people around him.

  • Looks familiar... (Score:5, Insightful)

    by MaWeiTao ( 908546 ) on Tuesday October 14, 2014 @11:20AM (#48140841)

    Conceptually, it seems similar to the kinds of rigs the movie industry uses to support cameras. I'm a bit surprised they haven't done this sooner considering I don't see anything here that's particularly exotic.

    • The arm you see is already in use, and yes, it operates on the same principle as the steady-cam rig. Steadicam transfers all the weight to the hips which protects the operator's spine and to aid dexterity by reducing the load on the arm muscles, but the legs still have to carry the weight (most steadicam operators are shadowed by a colleague and as soon as the director shouts "cut", the colleague takes the camera off them and puts it down for them). The logical next step was to built a structure that transf

  • I would like to see a locking hydraulics/pneumatics system in place, though. Since there is no power, using leverage is only going to get you so far until you tire. You will still tire wearing this, despite the design to make it easy(ish) to move around while wearing it and making it easier to move heavier loads.

    This way, when you get tired of holding your hands above your head to keep some drywall in place, you can literally let go inside the suit, and relax your arms, and the suit will remain upright-exte

    • by tlhIngan ( 30335 )

      I would like to see a locking hydraulics/pneumatics system in place, though. Since there is no power, using leverage is only going to get you so far until you tire. You will still tire wearing this, despite the design to make it easy(ish) to move around while wearing it and making it easier to move heavier loads.

      Well, the goal is for jobs where you're not moving much (because it's worse to move the thing), but where you're carrying a heavy tool constantly. Perhaps you're using a heavy saw to cut into metal,

  • Steadicam (Score:5, Insightful)

    by camperdave ( 969942 ) on Tuesday October 14, 2014 @11:23AM (#48140855) Journal
    It's a glorified Steadicam mount. Like the 'smart guns' carried by Vasquez and Drake in the movie Aliens. A spring loaded linkage connects the load to a body harness, but with added linkages that can transfer the weight of the harness to the ground.
    • Re:Steadicam (Score:5, Insightful)

      by gurps_npc ( 621217 ) on Tuesday October 14, 2014 @11:39AM (#48140991) Homepage
      True. But the majority of inventions are modified versions of existing things with improvements.

      The value of slight changes can be VERY significant.

      Think of the first guy to ever rifle a long gun. Long guns had grooves before, they were just not consistent. Making those grooves consistent and using ammo that expanded just enough to catch them made a HUGE difference.

      The linkage to transfer the weight to the ground is just such a huge improvement. They had to design it special so that it bore the weight, but still let your heels touch the ground.

    • A spring loaded linkage connects the load to a body harness, but with added linkages that can transfer the weight of the harness to the ground.

      Nothing in the article says that the arm is innovative. The arm is a product that has been available for some time. The "added linkages that can transfer the weight of the harness to the ground" is the product. It's an idea that people have been trying for for decades, and now finally they can make the structure stable and usable. That's the news. Saying this is nothing new is like saying the moon landings were nothing new because people had already been up in space, and landing on the moon was just "adding

  • by bugs2squash ( 1132591 ) on Tuesday October 14, 2014 @11:33AM (#48140941)
    it's not just the tools that are heavy. I find it tiring just holding myself in position all pretzled up under a sink to undo the trap/water feed/popup drain stopper paraphernalia. I could see somethign like this being wildly popular in the building trades
  • by PPH ( 736903 ) on Tuesday October 14, 2014 @11:42AM (#48141033)

    ... someone who has been in trades like construction and logging:

    the exoskeleton is able to support tools of up to 36 pounds

    36 pounds? You kids need to get in shape. And stay off my lawn, lightweights!

  • Instead it effectively increases your stamina by relieving fatigue caused by carrying the heavy tool.

    Could solve a problem that guys like myself have to live with.

  • Minimal effort to move me and my backpack full of whatever.

  • "Instead it effectively increases your stamina by relieving fatigue caused by carrying the heavy tool."

  • If they want to talk about this as an exoskeleton, they need to show someone walking with a load. Otherwise, this is just a mobile platform for the Equipois ZeroG [equipoisinc.com] arm which is basically a steadycam mount for industrial equipment.

    Specifically, I understand that the frame transfers the weight of the rig to the ground (rather than to a chest harness in a traditional steadycam), but unless they show the device dynamically transfering the weight from hip to hip so the wearer can walk without bearing the load, it

    • by Fwipp ( 1473271 )

      It holds up to 36 pounds - most people in the navy can probably walk while holding 36 pounds.

      • But can they hold it above their heads for a while, making relatively finely controlled movements?
        • by Fwipp ( 1473271 )

          No, which is why they have this exoskeleton.
          (If it's not clear, I think the device is promising and makes a lot of sense.)

    • If they want to talk about this as an exoskeleton, they need to show someone walking with a load. Otherwise, this is just a mobile platform for the Equipois ZeroG [equipoisinc.com] arm which is basically a steadycam mount for industrial equipment.

      Well... yes, that's basically what it is. But it is still an exoskeleton, as it has solid load-bearing elements outside of the body. I'd love to see a video myself, but I also trust a company like Lockheed Martin when they say it is designed for mobility. The tech has existed to create semi-mobile ones for a looong time now, but it's never been an attractive proposition. People have been working on this stuff for decades, so I'd say that they've probably done most of what they claim.

  • Hardest hit.

  • ...when mama Alien comes after you, you're going to really miss those batteries and hydraulics. Just sayin' - chance favors the prepared.

  • Army could use this easier... Dual wielding 50cal machine guns and ammo cans mounted on back turn a single guy into a weapons platform that throws 600 rounds a minute at the enemy and can do it all day long.

    Although I'd rather see one 50 cal machine gun and then a belt fed 20mm canon with Explosive rounds, or a pair of 40mm fully automatic grenade launchers... One man shock and awe is what is needed on today's battlefield.

  • A bit like a good backpack that helps you to carry most of the weight on your hips instead of on your shoulders which frees your upper body from most of the loads (instead of projecting it from your shoulders through your backbone to your hips through your legs to your feet). Extending this to actually support the weight by an exoskeleton right down to the shoes with no need to have the load go through your legs is just logical. It's just a matter of designing and engineering well-fitting, lightweight suppo

  • Quoting from the article:

    the exoskeleton is able to support tools of up to 36 pounds

    The anodized aluminum and carbon fiber skeleton weighs 30 pounds

    So let me get this straight: you design a 30 pound device to carry 36 pounds? So someone will lug around 66 extra pounds all day and will not get tired?

  • Ignorantly repeating the wrong pronunciation obviously leads to ignorantly writing it wrong.

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