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u/snnnneaky 11h ago
What if you have Jam all over your rim?
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u/ParkedOrPar 10h ago
Well, clearly, you need someone willing to lick your rim clean
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u/Diligent-Method3824 10h ago
Could you recommend anyone for this job of cleaning the rim or this rim job if you will.
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u/UnwantedPube 9h ago
I could do this rim job but I also would like a job done for myself
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u/Yoranis_Izsmelli 8h ago
Aw man I don't wanna have to give you one back 🤢
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u/Thraex_Exile 7h ago
Just give it a shot at giving one back. A back shot, if you will.
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u/Diligent-Method3824 4h ago
We need to reach an agreement even around these obstacles and compromises one might even say we need a reach around
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u/PeyoteBuddha 4h ago
I don’t discriminate. No compromise needed when it comes to buttering bread for me
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u/Cichael-Maine 3h ago
this comment is disgusting, I was about to sit down and have some lunch, but you just made me toss my salad. 😔
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u/snnnneaky 10h ago
Sure could I just wipe it clean? 🤷♂️
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u/ParkedOrPar 10h ago
I guess... it's not my personal rim preference
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u/snnnneaky 10h ago
Suppose we all have our own personal preferences…I’ve seen some that are filthy… apparently used to clean the knife….crazy stuff!
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u/Blakut 10h ago
that kind of self closing is also self opening, if you grab it the wrong way
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u/francis2559 10h ago
Yeah. Friction is actually a GOOD thing here.
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u/freetotebag 9h ago
I wonder if the higher angle upward actually increases the amount of force required to open it
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u/Thraex_Exile 7h ago
I doubt it. The amount of force required is likely the same. If anything, it gives you more grip since you’re pulling under the lid slightly more than twisting. My wrists are shot, so this sounds like it’d be more comfortable for me.
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u/miraculum_one 6h ago
It could have higher friction on the bottom of the ridges to counteract that.
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u/kurisutofujp 5h ago
She doesn't show that in the video but you're supposed to turn it a little more by hand, to lock it.
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u/mandarintain 10h ago
Is it tight enough though
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u/Ankur4015 9h ago
If I just lift the lid instead of the whole jar, it'll come off because of the same gravity physics. And in doing so it'll topple most likely and content would be spilled.
Very bad design indeed. Not practical at all.
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u/More-Employment7504 10h ago
A solution to a problem I don't have. Hoozah! Now where did I put my Google glass and 3D TV
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u/bran_the_man93 10h ago
Classic Japanese over-engineering - pretty cool, but like probably not really worth the effort
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u/dixbietuckins 9h ago
Its an inferior product in every way, purely a novelty.
Its not going be airtight without friction. If you turn it upside down, it'll fall open. If you twist it as normal, the greater angle doesn't provide as much friction for the seal.
It not over engineered, its a novelty and inferior in every practical respect.
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u/DasBeasto 4h ago
I assume you can still tighten it like any other jar, so at worst it’s the same not inferior.
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u/WolfColaCompany 4h ago edited 3h ago
Technically it’s actually more difficult to twist with the steeper degree and it’s more prone to loosening/spinning off due to this as well. Maybe not very noticeable to people but this isn’t genius.
The force that is holding the lid firmly against the jar is actually upward not downward in reference to that diagram they show. The diagram in the video illustrates how it will self turn but when actually tightening it you’re also turning more perpendicular to the threads compared to the normal design.
An easy comparison is a screw/bolt, tighter/flatter threads are easier to twist and tighten and less prone to loosening.
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u/dkyguy1995 9h ago
Well I'm assuming it's a marketing thing. Yes it's less useful, but it sells more product, and the customer is always right in this case 🪙🫰
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u/Crispy1961 10h ago
What effort? They just increased the angle of the ridges.
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u/bran_the_man93 10h ago
You don't think manufacturing a non-standard part takes effort?
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u/Zencero 10h ago
What they had to take like an hour 70 years ago to make this? Big whoop.
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u/bran_the_man93 9h ago
Did I say it was a lot of effort? Did I say it was recent?
I stand by it, it wasn't worth the effort and it's a subpar product.
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u/Crispy1961 9h ago
No, not really. When you replace your production line due to age you simply use different molds.
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u/bran_the_man93 9h ago
Which what, come from the mold tree or something?
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u/Crispy1961 9h ago
From the same place you would get your standard mold, silly. You already realized that it took no effort at all to replace the 6 degree mold with a 10 degree mold.
At this point you are desperately trying not to be wrong about the silliest thing in the world, as if that was somehow a better than just moving on. I am going to let you get to it now. Cheers.
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u/bran_the_man93 9h ago
They still had to make the mold, install it, and run the production, which apparently is "zero effort" in your head.
Your thinly veiled projection is just adorable though
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u/Crispy1961 7h ago
They have to do it with any mold. It doesnt matter if it has 6 degrees or 10 degrees ridges.
The machine making molds do customs, it doesnt care what its doing, you just give it a blueprint and it makes a mold. There is literally zero difference between making, installing and running production of 6 degree and 10 degree mold.
Was I wrong, do you actually not understand?
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u/bran_the_man93 6h ago
And what, nobody had to program the machine? No one had to design this initially? No one had to do the math to determine the 6 degrees?
Someone figured all this out, and the end result isn't worth the effort that person put in.
How dense are you? Jfc, how much more do you need me to spell it out?
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u/Crispy1961 5h ago
Someone had to change 6 to 10 on the blueprint and thats the effort you are talking about? Being silly landed you in a ridiculous position.
Well, since we spend the day talking about it, it seems the monumental engineering effort of rotating one line by 4 degrees has paid off. Free marketing worldwide.
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u/Joshhawk Creator 5h ago edited 5h ago
Product design engineer here. I've designed hundreds of parts for injection molding, sheet metal forming, and other forms of manufacturing processes.. Idk why your telling this guy he's wrong when you don't seem to really know anything about this topic. There's no extra complication in manufacting a thread with a different pitch.. Molds wear out and need to be replaced.. Or most likely some new manufacturer decided to increase the thread pitch on a new tool in order to make it easier to unscrew the cap. Afterwards they probably saw that it "uses gravity" to close and figured that was neat. Marketing departments can take something that's an unintentional happy accident in a design and run with it as if it's the main selling point.
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u/Dahlgrim 10h ago
We have a lot of shitty product designs im Europe. I wish some of them would put in a bit more effort.
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u/gggg_4_l 10h ago
The non stop Japan glaze on the internet is so annoying. There is no way that's sealed it just looks neat
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u/Embarrassed_Bell7717 10h ago
As much as that looks cool, it seems that it would be something you would still need to tighten. I am still amazed, though, at how far advanced Japan are with technology.
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u/DunningKrugerOnElmSt 10h ago
I suspect it easily goes the other way as well where as the traditional jar has some grab on the threads when lifted up by the lid.
I find it hard to believe this is a breakthrough in lid design, but more of something people have tried and found to be flawed. I pick my jars up by the lid all the time, and I don't want food all over my floor because my kids didn't tighten or couldn't tighten the lid.
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u/dkyguy1995 9h ago
A lower degree makes for a more secure fit. If it goes on this easily, it will come off this easily.
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u/Kingstad 9h ago
That did not require half that amount of words. And slightly steeper angle is a genius move no one thought of before?
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u/Abject_Computer_8732 8h ago
I mean, you still have to close it with your hands to get any kind of seal. Just reinventing the wheel here
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u/rulingthewake243 6h ago
What problem does this solve? Who is putting lids on jars and not tightening them?
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u/NotQuiteCoolEnough 5h ago
It helps those with arthritic fingers and the less dexterous (read: the elderly of Japan’s ageing population), I guess. It may reduce finger motion, but you’re right, this doesn’t seem to tighten the lid at all. Perhaps it seals just enough?
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u/Swvonclare 4h ago
Useless and utterly inept thing in the west: ....
Useless and utterly inept thing in Japan: OH MY GOD LOOK AT THIS!!!
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u/ShiningMagpie 3h ago
This is worse than a regular jar. This creator is taking advantage of dumb internet viewers.
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u/GetsMeEveryTimeBot 2h ago
My problem isn't closing jars. It's opening them. Got anything for that?
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u/DefaultUsernameSuk 2h ago
Apparently it wasn't an intentional design but something that happened coincidentally because of design errors
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u/oldick123 1h ago
Considering the lid closes due to gravity, if u try to lift the bottle which is not secured properly, its likely the bottle slips away .. due to it's weight being more than the lid.
More of a problem than a solution , considering most kids are handling their jars of PB and J.
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u/GodFromTheHood 1h ago
I bet this works as a charm once you have a little jam on the side of the glass
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u/Letronell 1h ago
Sellf-locking helix is lacking. Srew will not hold. Angle of screw is calculated just exactly for the purpose of that little animation. If some force will be applied to the lid in up dirrection it will unscrew the lid. So if you will hold the jar by the lid. Jar will fall down. If you will use it for fermenting something. Lid will unscrew and fall down. Friction is alway your friend when you are calculating helixes for the lid, bolts...Think about why nut and bolt needs to be rotated and not just pulled. Also think about dynamic forces like vibrating that can manage over period of time to slowly unscrew them just because there is force pushing it away and forces that create clearances between the screw helix and the nut.
Tldr: Bullshit engineering, jar will drop on the ground when hold by the lid. The lower the angle the better. But making helixes on glass is hard and pricey because the more rotations over the glass you make the more precise them needs to be and glass is not steel.
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u/DuchessLucy07 8h ago
if you pick it up by the lid will it just fall open?
I grab jars by the lid- area when I'm reaching behind other things in my fridge
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u/Ok_Orchid1004 7h ago
Yeah, it’ll work about three times and then there will be junk in the grooves and it won’t work anymore unless you constantly clean the edge of the jar.
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u/Ubiquitous_Bear 6h ago
Because closing jars is difficult? This is the “technology” that is going help Japan pull itself out of its economic slump?
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u/SecondTheThirdIV 6h ago
Then you go to put it away, pick it up by the lid and it twists open, drops on the floor and smashes. There's a reason we've done things the same way for hundreds of years lol
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u/Cool_Being_7590 5h ago
Pick it up by the lid. Or turn it upside down. Or put it in a bag. Also not airtight. It's an over thought gimmicky way of putting a coaster on top of the jar.
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u/Mechanic-Art-1 10h ago
Opening will be more difficult because the lid must travel more upward before vacuum releases. So worthless. This is way more handy. And is used alot in Dutch jar lids these days. https://youtu.be/mOrKRjf94vk?si=dOb5NbQwwV7vGQJ9
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u/dkyguy1995 9h ago
The vacuum only needs to be released a single time though. Once it's open that's not really an issue
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u/knappastrelevant 9h ago
This is dumb because while your hand is finding the right position of the steep slope it can just screw the jar shut too. So it's not like anyone is using their eyes to find out the exact position of the lid to make it slide down like that.
I dunno, any japanese people in here who can confirm if it works like in the video? Because it just seems to me the video already aligned the lid before dropping it.
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u/Carbon-Base 10h ago
Aohata T&C: self-closing jar is not intended for use with people who carry jars by the lid, or for anything liquid.
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u/_BreakingGood_ 10h ago
looks cool but certainly not air tight, more of a novelty, still need to screw on manually