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Thread: Why are wheelchair tire locks so poorly designed?

  1. #21
    Senior Member Andy's Avatar
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    Quote Originally Posted by pfcs49 View Post
    I'd like a brake that has enough drag in the lever that it can be lightly applies, light enough to keep you parked but still weak enough that you can move the chair; I seem to get into situations where I need to re-position myself quickly; having to unlock and relook the brakes is just bad ergonomics and a persistent PITA!
    You need to get yourself some circa 2003 TiLite brakes like I have and migrate them to various new chairs. Brake effectiveness adjustable via tire wear and inflation. These seem to do just fine with totally worn screws and bushings as well, as they haven't fallen apart yet. Best of all, they get out of the way of very possible damages with my wheelchair disassembly 'techniques'
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  2. #22
    Senior Member robotnik's Avatar
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    Have you seen guys this new brake from Panthera wheelchairs ?
    Even if the brake method is the same as usual (the brake pad applies on the tire, with the advantages and the issues), the brake itself is between a "push to lock" and a "scissor". You push on the handle to lock it, but it works as a scissor mechanism. Not a true revolution, but it is obviously new and different.
    I don't know actually if it can be bought as a part, because it is not in their spare parts catalogue on their website.
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    C6-7 since mid 2002, no hand control nor triceps.
    my website & my job (in France): Accessibility advisor www.acceslibre.eu
    Also working on a French research about Peer counseling and Empowerment.

  3. #23
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    I want these:

    http://adi.stealthproducts.com/disc-brake-systems/



    But you need special hubs so I don't see these working with my TWIONs.

    CORRECTION: for many wheels you can use a spline insert to make them compatible. TWIONs aren't on the list though.
    T3 complete since Sept 2015.

  4. #24
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    Hmmm...it seems that - other geometrical issues aside - the main compatibility issue is the wheel bearing dimensions because all one needs to do in order to convert one's wheels to disc-bake-compatible is replace the wheel bearing with the ADI spline insert:

    http://adi.stealthproducts.com/PDF/I...l%20manual.pdf

    I guess I'll find out how much they cost. It should be comparable to similar brake systems for bikes, right? ;-P
    T3 complete since Sept 2015.

  5. #25
    Quote Originally Posted by Mize View Post
    I want these:

    http://adi.stealthproducts.com/disc-brake-systems/



    But you need special hubs so I don't see these working with my TWIONs.

    CORRECTION: for many wheels you can use a spline insert to make them compatible. TWIONs aren't on the list though.
    those are cool but i bet they are expensive

  6. #26
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    They're really no more complicated than mountain bike disc brakes which range about $200-800. Add that spline insert and these *should* cost between $300-900.
    I'll bet they cost more. No pricing on their website so I'm emailing.
    T3 complete since Sept 2015.

  7. #27
    Senior Member NW-Will's Avatar
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    I'm curious to know what that chair is with that mighty shock under it.

    Quote Originally Posted by Mize View Post
    I want these:

    http://adi.stealthproducts.com/disc-brake-systems/



    But you need special hubs so I don't see these working with my TWIONs.

    CORRECTION: for many wheels you can use a spline insert to make them compatible. TWIONs aren't on the list though.

  8. #28
    Senior Member robotnik's Avatar
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    Quote Originally Posted by NW-Will View Post
    I'm curious to know what that chair is with that mighty shock under it.
    It seems to be a Quickie, but which one ? I think their optional rear suspension is mono shock, this one is dual.
    C6-7 since mid 2002, no hand control nor triceps.
    my website & my job (in France): Accessibility advisor www.acceslibre.eu
    Also working on a French research about Peer counseling and Empowerment.

  9. #29
    Senior Member Oddity's Avatar
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    Quote Originally Posted by NW-Will View Post
    I'm curious to know what that chair is with that mighty shock under it.

    That's a Quickie Q7 with their patented 4-Link suspension. It comes in both single and dual post varieties, depending on CoG setting.
    "If you only know your side of an issue, you know nothing." -John Stuart Mill, On Liberty

    "Even what those with the greatest reputation for knowing it all claim to understand and defend are but opinions..." -Heraclitus, Fragments

  10. #30
    Senior Member NW-Will's Avatar
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    mmmh picture of a Quickie
    with XTR Suspension
    ??

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