Wheelchair stability

[Rev. Green]

Is there an attachment, or modification, which makes a wheelchair stable.
Grandma(90) has a lightweight, attendant-propelled, wheelchair which has two large wheels at the back and two small wheels at the front. There is no problem when travelling backwards, but when travelling forwards the front wheels swivel close to the rear wheels. The chair then has a very short wheelbase and tips forwards when it meets a slight bump - an 18mm pebble can cause it to tip.
Luckily, the seatbelt catches Grandma, and she has no short-term memory, so once she stops screaming she forgets all about it.

[cazzz1975]

is she sitting/ slouching forward in the chair?

[boxtops]

Stabilisers sound a good idea! - but why don't you just get Grandma a new, more stable, wheelchair? She can't travel backwards for the rest of her days.

[campbellking]

If Granny never propels, then you may be better off getting a genuine attendant propelled wheelchair (as the one she is in now is actually designed to be self propelling) . This would have 4 small wheels instead of 2.
If the chair has been provided for her by your local wheelchair services, then ask them to review it. Most wheelchairs on the market will only have adaptations provided (such as anti-tips) which stop them tipping backwards.

[Rev. Green]

Thank you for your replies. Yes, the wheelchairs with four small wheels are stable, but I can't push them, except indoors and on pavements. On sand or a gravel track they are useless. Perhaps we were adventurous taking Grandma to 2800m up mountains, but surely she should not be denied beaches or canal towpaths.
She doesn't slouch. Her lightweight chair is new, but we would willingly buy another if anyone knows of a more stable one - I've not found any with a wheelbase longer than 40cm.

[easter_bunny]

You are having a laff! Get real. Wheelchairs are meant to travel from a-b on level ground or slight inclines. There are indoor chairs as well as outdoor chairs but taking her on the beach or canal towpaths is out of the ordinary.There are for the money some better wheelchairs but free NHS wheelchairs are given to enable some mobility. Perhaps there is a niche in the market for hover wheelchirs that ride on a cushion of air. Try a mountian bike!

[marcwebster]

Hello! You can probably custom made the wheelchairs just like that of sports chairs. Wheelchairs used for outdoor activities or sports are well-known to be more stable that regular ones. Either you customize your old wheelchair or you can buy a sports wheelchair. Here are some good ideas: http://www.alltimemed...chairsHandcycles.html