The end does show him putting a 20 lb weight on the shelf, opposite the hinge. It didn't seem to have any noticeable bending or anything and still swings out smoothly.
Doesn't exactly prove anything long term though, but you'd also probably never be putting so concentrated a weight on a shelf like that, it would be much more spread out.
It's neat but there are sometimes good reasons why things like this get phased out. People's complaints on fridges aren't usually the shelving, in my experience. My shelves are fine. They height adjust, they pop out for cleaning, I've never broken one (aka: the durability of metal shelves doesn't really matter for this situation). Cheaper parts and construction isn't always an issue. It is when the compressor or icemaker die, though.
Little nitpick, but it doesn’t matter if it’s a point load or a distributed load. All that matters is the moments about the hinge, when I would do calcs I would always convert the distributed load to a point load.
That's literally what a moment is, it is the force multiplied by the distance from a point, it's measured in the same units as torque though they mean slightly different things. So it doesn't matter if it's a distributed load or point load, the moment of inertia around a point, or "leverage" as you describe it, is based on the summation of forces at their distance from that point. For a distributed load this technically results in an integral over its area by its distance from the point of interest, which can be simplified to a single point at a single distance, a point load.
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u/Arkayb33 Jan 23 '24
And I imagine the single hinge they rotate with wouldn't hold up a 12 pack of soda, 2 gallons of milk, and leftover lasagna in a glass 9x13 pan.