Originally Posted by
flashwilson:
“I am aware of stuff like that, but I have a chair which is created in my size (so I can self-propel most effectively) and was chosen for my needs (folded to go in car, etc) - I'm not going to hire another chair just to go on the beach, and even if I did I couldn't get it in my car! I have seen off-road chairs in use at festivals though, and I was jealous...
That's more to my way of thinking! But I'm not sure how I'd self propel with fat wheels - I wouldn't get my arms around them!
This is my chair: http://www.ottobock.co.uk/cps/rde/xb...m2_rdax_85.jpg - what I need is somethign I can clip on that's small (fits in a car boot along with my chair), affordable, and yet somehow enables me to ride over the sand. Maybe what I need is an array of mini jet packs that clip on and lift me up just a little, so I am still in contact with the sand enough that when I self-propel I still move forward, but am not pressing on the sand enough that I sink in...?
Um, yeh. Maybe the Book-eeze wasn't so bad after all!
”
Yeah, I'm sure I've seen things like that at festivals now you mention it.
I'm not an engineer, but my immediate thought was catapillar tracks that could clamp on. Looking at those sites, the front wheels would be better served by fat tires, the real by wide but low profile tracks so they don't interfere. perhaps with grip handles if the tracks/oval section tyres are too wide to grip themselves.
What really surprised me is I thought this would bring up more hits than it did. I mean it's not just on sand, what about going down the garden after the lawn's been soaked for weeks or snow and ice. I see some fit mountain bike tyres or those off road tyres are the same width. Ok if the going is rough but not soft.
THE main problem with the beach is sand not being a friend to bearings. That would be a reason for hiring one just to go on the beach. Same as pedellos or deck chairs. You have your normal one and just leave it as deposit/storage for going onto the harsher terrain. The company hiring costs in the price of all that extra servicing, not you. That's a market right there. The self propelled chairs are heavy and ungainly. I totally see your point about wanting to keep control yourself. The chief swimming instructor/lifeguard at our local baths when I was a kid, was in a wheelchair (ex-soldier, bullet in the spine in Cyrus). Was he ever fit!
Besides those tank-chairs etc are expensive and mean a new car and more. No I think something that can reasonably cheaply and quickly add to existing chairs is a product (range) that could be feasible for a business to spend time developing.
Well apart from the obvious existing wheelchair makers or a whole new business (can just see this on Dragons' Den), who could design it? Universities do do design work, though together with business. Another who would have an interest in seeing this would be the army. Sadly a sizable number of fit young men, used to outdoor sports etc, have come back over the past few years. They have rehab centres that do work to try and over come an individual's needs. The US army would be the same. Incidently (to nod to the Apprentice) Raleigh's brother had to spend time in a wheelchair after an IED. Raleigh now works for a troop charity whose patrons are 'the great and the good'. Contacts maybe?
As to why there doesn't seem to be anything like this at the moment, maybe just not found them. Or there are patent problems. In the US maybe, but didn't see any UK solutions.
New products that are useful are appear all the time, sometimes people haven't thought of it. I started a business (lasted 14 years) fufilling such a niche need, though it was in a market I knew well and with a technology that I could work out how to apply (printing). This would require real engineering experience, ideally in wheelchair design, but
not exclusively. I think you've identified a real need, which means a market, which means it's worth someone's time to seriously investigate how to do it. Hope they do.
But as I'm not an engineer, sadly, with regret, I'm out
Seriously, I think it's worth pushing, as there is something there