Simple Adjustable Hinge Design
Simple Adjustable Hinge Design
(OP)
I'm looking to cheaply manufacture an adjustable hinge, to fix a wheelchair footplate upright to the main frame. Something like the Variloc hinge below looks great, but is expensive to buy, and is complicated to reproduce (with many small internal parts).
Does anyone know of some way to provide a similar level of adjustability with a simpler joint? I've spent some time looking around for inspiration but have not found anything really.
Does anyone know of some way to provide a similar level of adjustability with a simpler joint? I've spent some time looking around for inspiration but have not found anything really.





RE: Simple Adjustable Hinge Design
RE: Simple Adjustable Hinge Design
Maybe a triangular pin with different slots/cut-outs in the two arms so that they align at different angles ? A problem would be controlling the two arms with the pin out (to re-position the angle between the arms
another day in paradise, or is paradise one day closer ?
RE: Simple Adjustable Hinge Design
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P.E. Metallurgy, Plymouth Tube
RE: Simple Adjustable Hinge Design
RE: Simple Adjustable Hinge Design
with a small spring it'd always be in tension, closing the two arms.
another day in paradise, or is paradise one day closer ?
RE: Simple Adjustable Hinge Design
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Simple Adjustable Hinge Design
RE: Simple Adjustable Hinge Design
Do you have a link to that Elesa hinge? One of the latest concepts I put together also used a tooted element.
RE: Simple Adjustable Hinge Design
another day in paradise, or is paradise one day closer ?
RE: Simple Adjustable Hinge Design
Sorry, I don't quite understand what you mean. Do you perhaps have an example?
RE: Simple Adjustable Hinge Design
another day in paradise, or is paradise one day closer ?
RE: Simple Adjustable Hinge Design
RE: Simple Adjustable Hinge Design
The footrest is likely to see all kinds of forces (there will be anti-tip wheels, and of course a body-weight force). I don't see how this concept will support the weight, unless I'm looking at it incorrectly.
RE: Simple Adjustable Hinge Design
RE: Simple Adjustable Hinge Design
Not only does the bike-seat-style clamp allow pivoting through a large angle, the tightening screw can be replaced with a lever-lock which allows adjustment with no tools (like removing the front wheel of a bicycle).
In fact, the quick-release bike seat is becoming common on bicycle seats now, as the seat, too, becomes an item to steal off the racks.
STF
RE: Simple Adjustable Hinge Design
There's also these, but they may not take the moment force: https://www.rockwestcomposites.com/accessories/oth...
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Simple Adjustable Hinge Design
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P.E. Metallurgy, Plymouth Tube
RE: Simple Adjustable Hinge Design
B.E.
You are judged not by what you know, but by what you can do.
RE: Simple Adjustable Hinge Design
RE: Simple Adjustable Hinge Design
RE: Simple Adjustable Hinge Design
RE: Simple Adjustable Hinge Design
je suis charlie