4 ms·
A free fall safe guard is often mandated by law / regulation. A "shoot up slam into ceiling safe guard" is not. That makes it simply a cost thing. Since most p
by jsiepkes 8y ago
A free fall safe guard is often mandated by law / regulation. A "shoot up slam into ceiling safe guard" is not.
That makes it simply a cost thing. Since most people don't know about this risk and there aren't many accidents there is simply too little incentive.
- zhte415 8y agoI think the parent means why not have a safety mechanism stopping the counterweight from falling? That would stop the lift shooting up.
- isostatic 8y agoBecause it costs money and isn't mandated by pesky regulations.
- jsiepkes 8y agoMy answer also meant to address that :-). I meant: There are plenty of technical ways to implement it (and the parent proposes a good one) but its not mandatory to do so, it costs money, and therefore its simply not implemented most of the time.
- aurelwu 8y agoin the European Union, nowadays, it is required to have a safeguard for "shooting up" as well[0]. If I recall correctly for quite some time it wasn't though. My Father who works in the elevator industry told me that in the GDR (German Democratic Republic) it was already mandatory but after reunification for some years Germany had more lax regulations til catching up again. [0] https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:31995L0016&from=DE https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CEL... (See Annex I , 3.2)
- setquk 8y agoSome horrible looking things here in Europe, like the Paternoster: https://www.youtube.com/watch?v=YgJBD1wf-YQ https://www.youtube.com/watch?v=YgJBD1wf-YQ
- epse 8y agoWhich weirdly, are illegal to build but can just happily stay in operation
- brohee 8y agoNot weird at all, I'd wager close to every five year old or more car would be illegal so sell new...
- rags2riches 8y agoOr the elevators without an interior door: https://webshop.flinks.se/Img/105/96/1059669l.jpg https://webshop.flinks.se/Img/105/96/1059669l.jpg
- kwhitefoot 8y agoThey generally have a light curtain to stop the lift if you go too near the door and such lifts usually move quite slowly.
- mikepurvis 8y agoMost freight elevators are like that, though. So while that's a slightly horrifying diagram, a lot of people will have experiences what it's like being in on.
- ceejayoz 8y agoOh wow, that diagram...
- FabHK 8y agoI also like the word, "Klämrisk"... (In German, there's the word "klemmen" = to tuck, get stuck, get trapped, get caught; presumably it's a cognate. So, the above presumably is a Swedish word for "the risk of getting stuck and squeezed".)
- laumars 8y agoMy uni had one of those (still does I think?). They're actually not that bad. Look far scarier than they are in reality.