ThyssenKrupp Multi – world’s first rope-free elevator [video]

Post by Animats » Sat, Aug 05, 2017, 8:26 PM UTC

londons_explore wrote: post #132

Animats wrote: post #114

Earlier quoted context omitted.

If the elevator ascends too fast, riders' ears will pop, and some people, especially those with colds, will experience ear pain. Some high speed elevators (Tapei 101, at least) pressurize the elevator cab so they can control the rate of air pressure change. But that runs the cost way up. Doors have to close slowly for safety. There's a limit on how much kinetic energy (7 foot-pounds, from memory) can be in a closing…

I love that position sensor. It doesn't say how the code on the strip is determined, but I'd like to imagine it's some kind of gold code so the sensor can find the position even if 99% or more of the code is occluded with dust or dirt.

Post by DenisM » Sat, Aug 05, 2017, 9:44 PM UTC

wlesieutre wrote: post #139

DenisM wrote: post #122

Earlier quoted context omitted.

Perhaps you could just hang two elevators on one set of cables in the same shaft? They will have to move in sync and the range will be cut in half, but the throughput will nearly double during the rush hour. In a tall building could be an acceptable tradeoff.

https://en.wikipedia.org/wiki/Double-deck_elevator is like that, but right on top of each other so the range isn't reduced. Most people are going between the ground floor and whatever floor their destination is on, so a shaft with two cars that go 0-50 and 51-100 wouldn't be very useful.

Post by [deleted] » Sat, Aug 05, 2017, 9:44 PM UTC

stcredzero wrote: post #92

anoother wrote: post #86

Earlier quoted context omitted.

Paternosters. You say terrifying, I say fun. There's one in Leicester University (not the only one in the UK, I'm sure). Really not that dangerous, with a cable near the top of each aperture that triggers a stop if it's touched.

The SF garage my fiancee parks in has this thing made from an industrial belt, with steps bolted onto it. I think there are quite a few of those in Stuttgart as well, though they are being fazed out. It's very efficient, but not for ze stupits!

Post by ant6n » Sat, Aug 05, 2017, 10:10 PM UTC

ChuckMcM wrote: post #54

SomewhatLikely wrote: post #31

Accelerating and decelerating in line with gravity is a lot more forgiving on the occupants than lateral accelerations. Seems like this would put a big limit on horizontal movement.

Depends on whether or not the car can 'tilt' while it is moving sideways (I know they don't show it doing so). If it can then any amount of acceleration can be presented as 'up' and 'down' force to the occupants much like a plane.

Post by CydeWeys » Sat, Aug 05, 2017, 10:17 PM UTC

samstave wrote: post #15

londons_explore wrote: post #10

Earlier quoted context omitted.

As far as I can see, the design only allows 2D movement. If you wanted the lift to move toward or away from the camera, you would need either some kind of 2nd attachment point on a different side.

why couldn't a horizontal segment have a curve to change the Z axis by whatever angle you wanted to get to. Also, they could have a completely circular horizontal segment to move people through an upper level of a round building - like a stadium...