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Re:Ask HN: What sucks about snow shovels? by pedalpete on Wednesday February 04, 2009 @06:14PM (#466709)
not sure if you've seen the wovel (wovel.com) combining a wheelbarow and a shovel. No longer original, but something you might want to work into your design as it seems a very effective tool.
Re:Ask HN: What sucks about snow shovels? by jmtame on Wednesday February 04, 2009 @09:50PM (#467002)
this is where i got 99% of the inspiration. without thinking it over for a longer time, i can only make marginal improvements on that model. there were a few disadvantages:

the flick action can be difficult for older people; no flashlight, no fluorescent handles; design is a little awkward, very big wheel; blade is not modular, fixed width;

that's about all i could think of, but they really nailed the concept.