A leading arm , used only at the front, is the opposite of a trailing arm, with the wheel in front of the pivot.
You’ll notice your loopwheel has more movement, vertically and laterally. As soon as the springs are loaded, they compress and further change their concentricity. This is what gives your wheelchair comfort and shock absorption. A Loopwheel is designed to absorb shocks, reduce jolting and cushion your body against vibration. You’ll notice more sideways movement than with a spoked wheel, but you’re trading rigidity for greater comfort.
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On front wheels, the whole strut swivels to allow steering. Pivoted arms extend inward and forward to the frame in order to keep the wheel upright and resist accelerating and braking forces .
The arm may be broadened into a V shape with two pivots, either side by side or with the inner pivot slightly behind the front one - a semi-trailing arm. Trailing arms are usually found at the rear only. A trailing-arm suspension on a rear-wheel-drive car. The arm is attached to the rear wheel hub and broadens into a V whose two arms extend forward to pivot on the frame. The differential is fixed to the frame and the drive shafts have universal joints.
The added components don’t make the wheels all that much heavier, too, as each Loopwheel only weighs 300 grams more than a similar spoked equivalent. Because they use hubs and rims similar to standard wheels, they can be installed on any bicycle designed to take 20-inch wheels. Other sizes may come soon, although that will likely depend on how well the current size sells.
Baigh invented a new type of bicycle wheel called the ShockWheel. The ShockWheel incorporates shock absorbing properties into the wheel by using bow-spokes. Unlike conventional fork suspension, the bow-spokes, positioned in a spiral arrangement, allow for compression in all directions. This new design may have the potential to revolutionize the bicycle industry.
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I spent about 20 minutes out with Sam on the 20″ wheels, coupled up with the Dahon folding bike, and immediately there is something special about them.
That’s why you don’t want suspension between the ground and your hubs. Plus, many, many other reasons. potbellyjoe on May 20th, 2016 - 11:27pm
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Gary: I agree in principal - and I believe, as usual that forum members are all trying to say the same thing. Which is that 1) when we know our equipment and 2) the circumstance is favorable then there should be no problems. However, OP, an admitted newbie, did not tell us the year and model of his Thor (I may have missed it), nor the type of jack nor the degree of slope he could be considering - so, to err on the side of safety when advising someone that is NOT familiar with his equipment I think our answer should be a conservative and collective NO - don't go off the ground for the drive axle (brakes). As always, disagree or agree the forum group is constantly trying to help others to stay safe and enjoy this wonderful way of life (for some) and pastime (for others). The shocks will limit how much the front air bags can extend, whether or not it damages the front shocks is a different topic. As a general rule MH's with solid front axles state in the owners manual NOT to lift front wheels off the ground. I've never read of IFS MH's having such a statement. 2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) Thread Tools Search this Thread Similar Threads Thread Thread Starter Forum Replies Last Post On-off on off on off off off rear view camera Bahcml Newmar Owner's Forum 5 08-12-2019 10:44 PM Lifting wheels off ground when leveling Geneandea Just Conversation 9 11-10-2015 08:35 AM Can you over extend the air bags...by raising the front wheels off the ground StansCustoms Alpine Coach Owner's Forum 27 12-02-2010 02:05 PM Jacks raise wheels off ground, good or not? jab862 Fleetwood Owner's Forum 11 08-24-2009 06:40 AM lifting front tires off the ground with leveling jacks George Cayer MH-General Discussions & Problems 14 02-09-2005 06:53 PM Contact Us - Home - Archive - RVLife - Community Rules - Terms of Service - Privacy - Accessibility - Top Home Discovery Queue Wishlist Points Shop News Stats © Valve Corporation. All rights reserved. All trademarks are property of their respective owners in the US and other countries. #footer_privacy_policy | #footer_legal | #footer_ssa | #footer_refunds All Discussions Screenshots Artwork Broadcasts Videos Workshop News Guides Reviews All Discussions Screenshots Artwork Broadcasts Videos Workshop News Guides Reviews Space Engineers > General Discussions > Topic Details I spent a few hours last night working on this, but so far I can only get wheels to roll if they're attached to a suspension system. Am I missing something here? That seems like a pretty big failing, as there are plenty of reasons to need wheels in a fixed position.
It’s not often I get a chance to review articles of clothing, but when someone sent me an email, talking about how good a pair of shorts were, to the point that both he and his wife have bought more than two pairs for each, I decided to take a look. I’m talking about the “Uprising” from a company called elevenpine. Read More » The Ultimate ICE Sprint X Tour Posted on August 31, 2020 by Larry Varney
The story of loopwheels is one of determination, and a streak of madness. They were invented and developed by Sam Pearce, in his home in Nottinghamshire, England. By training and profession, Sam is a mechanical engineer and industrial designer. By nature, he is some one who loves making things: designing, building, doing. He loves simplicity, and products that work well. Sam is practical and hands-on. He is stubborn and doesn’t give up easily. All useful traits when you find you’ve set out on a journey to reinvent the wheel . . .
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Loopwheels give you a smoother ride. They are more comfortable than standard wheels: the carbon springs absorb tiring vibration, as well as bumps and shocks. They’re designed for everyday use and are strong and durable. They don’t run as true as a spoked wheel, and you’ll notice more sideways movement, especially in the Loopwheels Classic, but they’re a lot more comfortable.
The second grant has allowed us to work with 2 other fantastic companies that we just would not have been able to do otherwise. It has allowed us to develop a world-class product. Related content PyroGenesys Deos: delivering faster and better mobile medical screening Power roll: bringing cheap solar power to Africa and India Improbable: digital firm raises $20 million from US backers Beattie Passive opens new factory to meet demand for retrofit Collection Innovate UK: case studies Explore the topic Charities and social enterprises Science and innovation UK economy Disabled people Is this page useful? Maybe Yes this page is useful No this page is not useful
They won a £24,000 Innovate UK grant in 2013 that helped them to develop the loopwheel for wheelchairs. A further £240,000 grant in 2017 allowed them to work with 2 companies, Strategic Simulation and Analysis (SSA) and Composite Braiding, to further develop the loopwheel to go faster and for use off road and on rough terrain.
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FORSALE thread: k20 neo chrome cover + oil cap + coil pack covers for sale: https://www.supramkv.com/threads/fs...me-valve-cover-oil-cap-coil-pack-covers.6642/ First Name Kelly Joined Aug 6, 2020 Messages 151 Reaction score 232 Location Victoria, TX Car(s) 2021 Supra
i think it depends on what your unique situation is. if there are rims you really like, buy them and work around it. plus, if your facing winter every year, you do not want to be dropped too much, you'll be sliding all over since you will have a lower center of gravity and have more of a grip demand on your tires. if you drop it three inches, now you need to stick with a really high offset, so that will limit your wheel choices. i think it works the same way no matter what you do-suspension first will limit your wheel options...wheels first will limit your suspension options. do you want to be scraping low with small wheels, or keep it practical with bigger wheels, it's your choice!!
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"Having the Loopwheels has been a complete life changer for me. I can now go on longer journeys with less fatigue...."
I'm looking to buy Enkei RPF1's. I am undecided if I should go with the 17 or 18 inch size for stock suspension. I am driving a coupe and have always felt the RPF1 visually looks 2 sizes smaller than they actually are, but I don't want to install coilovers yet - maybe in a few years, but not now. First Name Jay Joined Mar 18, 2018 Messages 9 Reaction score 3 Location Idaho Car(s) 2016 Honda Civic
There is a lot of research to show that ‘whole body vibration’ is associated with fatigue and lower back pain, increased spasticity (muscle contraction), and an increase in pressure sores and has an impact on bladder control.
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The fact that each shock is individually adjusted and tuned makes me wonder how difficult it would be to get them synced and the negative effects of them being out of whack with one another. Colin M on May 20th, 2016 - 10:53am nightfend on May 20th, 2016 - 10:59am
Daniel Barel, the CEO of SoftWheel, told the Jerusalem Post that his company’s new suspension technology is an integral part of the wheel that is selective and symmetric.
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In a Globe story this February, reporter Eric Moskowitz noted that Boston fills approximately 19,000 potholes in an average winter, and that the city has gone as far as developing a new app, called Street Bump, that attempts to give drivers the ability to instantly notify City Hall when a new crater appears. And that's just the city of Boston. Do the math and consider how many gaping holes have appeared in the New England region after last winter's prodigious snowfall.
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Premium LED Smartbeam Intelligent Headlamps are integrated into widened fenders, which are flared eight inches to accommodate seven strategically placed air flow features.
Loopwheels reduce vibration by up to 70% compared to a spoked wheel so the amount of vibration transferred into the person in the chair is significantly reduced.
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Loopwheels are different from spoked wheels. They look, feel and perform differently. You will be used to a wheel being a rigid thing, Loopwheels have flexibility in them in order to provide vibration reduction. The hub moves within the rim as the springs flex. The whole wheel acts as a flexible moving system which constantly adjusts to the load it carries and the obstacles it encounters.
They won a £24,000 Innovate UK grant in 2013 that helped them to develop the loopwheel for wheelchairs. A further £240,000 grant in 2017 allowed them to work with 2 companies, Strategic Simulation and Analysis (SSA) and Composite Braiding, to further develop the loopwheel to go faster and for use off road and on rough terrain.
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A Kickstarter project has already raised £48,000, exceeding the £40,000 target needed to get production started, and Mr Pearce, who is developing the wheel with his wife Gemma, admitted he was stunned by the response.
Rear Loopwheels are about twice as stiff as front installations, and wheels can be used both separately with a spoked wheel, or as a set, plus as the lone form of bike suspension, or in addition to suspension forks. At only around 0.7 pounds heavier than spoked equivalents, Loopwheels make for particularly appealing add-ons to folding bikes, most of which don't bother with suspension systems due to the weight and bulk they pile on.
The constant rumble and vibration from bumpy roads is tiring and can cause you problems. Loopwheels reduce vibration on average 65% compared to a traditional spoked wheels.
I might eventually drop it. You have remember though, the roadsters sit atleast a half inch lower than the coupes to begin with (stock).
OK, so this would feel weird, as as the ‘suspension’ compresses, your pedalling torque curve would change due to the wheel changing shape….?? Ventruck on April 14th, 2013 - 7:30pm Dan on April 14th, 2013 - 7:58pm
Innovative design means the wheel has a stiff structure but an element of compression. The springs within the wheel are made of a carbon composite material.
The wheel fits to any bike with minor alterations. The added wheel suspension works with traditional fork suspension. Baigh explains his design in the video below. The LoopWheel is another design that features bow-spokes, only these are in elliptical shapes. The carbon composite springs isolate the rider from the high-frequency road noise preventing aches caused by jolting.
Both modeling and experimental results demonstrate several realistic scenarios in which wheel hubs experience accelerations greater than 100g, sometimes at very low vehicle speeds. This paper focuses on the experimental determination of suitable design goals for in-hub motors (wheel motors), describing the experimental test rig, experiment procedures, and experimental results from testing conducted at UT-CEM. The paper also discusses implications of these results on wheel motor design, leading to the conclusion that a realizable and feasible design goal for a combat vehicle wheel motor shock rating is 150 g's, with a 10 to 20 ms pulse width.
Size H74, W86, D82cm.Batteries required: 4 x D (not included) plus .For ages 5 years and over.EAN: 0887961921021.
Are there drawbacks? Yes. In the lowest suspension settings, mainly efficiency and dynamic, the ride is bouncy. On a very smooth highway, these lower settings handle very well. However, on more imperfect pavement, you’ll want to move to a higher setting. We find ourselves using comfort the most. To our eye, it’s just below the factory-height dynamic setting, low and sporting but with much less pronounced rebound.
OK, after pouring through much of the other thread, I felt I spent so much time looking at setups that weren't relevant to what I was looking to do...which is stay on stock suspension. So this thread is dedicated to Aftermarket wheels on stock suspension. *List wheel make and model with offset and width as well as tire make/model/size. *Try to take pics showing "poke." That means refrain from turning the front wheels for the pics. Keep 'em pointed straight and try to get some shots down the side of the car that will help others make a decision. *If you've rolled, pulled fenders and/or used the slotted strut mounts for more tire/fender clearance that is ok, just let us know when you post your setup.
Put three of these on your trike, then write up your evaluation for the TA readers.
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Curve Tetra Grip & Curve Tetra Grip L push rims have the same ergonomic shape as the ‘Curve/Curve L’ but in addition are rubber coated for greater grip. Designed for tetraplegics with triceps function and for wheelchair users with complete hand function but little hand strength.
