Invention report

[fbhjr]

The other day I thought of a different way to drag home the shopping.


I tried it out yesterday and it works. But, it is harder to use then I expected.
The problem is, to keep the bags from dragging, I have to hang them pretty high up the handle. That means they’re putting a good bit of their force down.


Now, I’m still getting a 20% reduction in lifting force, which isn’t bad. But, it would be nice to get more.

I could either counter weight it, or add a third wheel. Still working out which.

Comments

[silverdragonma.livejournal.com]

Add a post going out towards the wheels from partway up the handle, and move hooks there. Maybe add a short axle to add stability.

[fbhjr.livejournal.com]

That's what I mean about counter weight.
But, that will make tip a lot more side to side. So, I'm not sure it is worth it.

[silverdragonma.livejournal.com]

Would a foot wide axle be a bad thing?

[fbhjr.livejournal.com]

Probably not, but I don't want it too wide.

Hmm, I agree

[evrgreen.livejournal.com]

a triangle is a pretty stable platform - I'd think about having a 'hinge' up near the top/handle end, and have (2) beams that would swing apart and extend the axle so that the wheels would swing apart to be at least as far apart as the bag is wide.

You might also get more ground clearance and a smoother ride if you think about suspending the load from what one might describe as a strung bow, or leaf spring that curved upwards from the axle toward the handle - that would tend to absorb the 'shock' of heavy groceries going over joints in the sidewalk.

Re: Hmm, I agree

[fbhjr.livejournal.com]

Don't know, I've tired to avoid hinges and such. Anything that folds out will jam at some point.

Yeah, I've thought about suspending up higher. But, I want to keep it simple too.
A third wheel on the bottom might work out better...