When you tow something the pulling force has to be down low, aligned with the load, to make it efficient. With the human body, given the height of your hands, it will always be easier to push a load than to try and tow it. The angular force when pushing a wheelbarrow, along with the weight of your body, helps the wheelbarrow along. If you turn around and try to pull it, your body takes that angular force instead of the front wheel. Like, instead of the lever and wheel doing the work, you have to not just move the load along, but lift it too. In short, there’s a reason why you can’t find something like this. It’s the same reason that why you look at wagons or pull carts, the handle is connected as low to the load as possible, and may likely have an angle built into it, also the same reason why flatbed type push carts say right in them “push, don’t pull.” Same with wheelbarrows. In short, you’re going to hurt yourself.
Your post doesn’t make sense. “A four wheel cart doesn’t scale well when compared to the rickshaw design”? Given that a four wheel design spreads the weight to four wheels instead of just two, four wheels can obviously move more weight more easily than two.
As above, especially in uneven surfaces, pushing is easier than pulling given that angular force is reversed (pushing the wheel over a bump and using the angular force to help rotate the wheel versus lifting the load up over the bump using your body whilst pulling). No question.
When you tow something the pulling force has to be down low, aligned with the load, to make it efficient. With the human body, given the height of your hands, it will always be easier to push a load than to try and tow it. The angular force when pushing a wheelbarrow, along with the weight of your body, helps the wheelbarrow along. If you turn around and try to pull it, your body takes that angular force instead of the front wheel. Like, instead of the lever and wheel doing the work, you have to not just move the load along, but lift it too. In short, there’s a reason why you can’t find something like this. It’s the same reason that why you look at wagons or pull carts, the handle is connected as low to the load as possible, and may likely have an angle built into it, also the same reason why flatbed type push carts say right in them “push, don’t pull.” Same with wheelbarrows. In short, you’re going to hurt yourself.
Your post doesn’t make sense. “A four wheel cart doesn’t scale well when compared to the rickshaw design”? Given that a four wheel design spreads the weight to four wheels instead of just two, four wheels can obviously move more weight more easily than two.
As above, especially in uneven surfaces, pushing is easier than pulling given that angular force is reversed (pushing the wheel over a bump and using the angular force to help rotate the wheel versus lifting the load up over the bump using your body whilst pulling). No question.