Elevator Door Open Button
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So there is this guy at work who always gets on my case about holding the door elevator open button as opposed to holding my arm in front of the door sensor to hold it open.
By holding my arm in front of the door sensor, I am doing two things:
- Holding the door open 2. Signaling to respective members of my community that I am holding the door open.
It is actually much less efficient to use the door open button, as I would have to additionally signal members of the community that I am holding the door open for them
TRWTF is that he uses even more energy by criticizing my methods for holding elevator doors.
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TRWTF is that he uses even more energy by criticizing my methods for holding elevator doors.
Is there also a famine happening locally?
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If there was, that would actually be a problem, and there would be no comments about elevator door opening methods.
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And if the door sensor fails, now what?
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Signaling to respective members of my community that I am holding the door open.
I'm not entirely sure how to parse this. If it means just a way of letting people know you're holding it so they'll hopefully hurry and get in the elevator, then that's reasonable, especially if they're coming from a direction where they can't see that you've seen them. If it means social signaling that you're a kind person or whatever, then that's a bit of a WTF.
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I'm generally polite and hold my finger on the open door button when I know someone is coming.
Judging by the lack of thanks and glares I get it looks like most people assume I was pressing the close door button to escape and they foiled me.
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Why is this a thing people have conversations about?
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You're correct, the arm-in-door method is far superior.
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And if the door sensor fails, now what?
Because that happens so often?
"But what if gravity reverses and now up is down!" Well, we'll just cope with that extremely hypothetical situation when it occurs.
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"But what if gravity reverses and now up is down!" Well, we'll just cope with that extremely hypothetical situation when it occurs.
The only thing I can't figure out is how to keep the change in my pockets.
I've got it! Nudity!
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The FWP thread is over there
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The only thing I can't figure out is how to keep the change in my pockets.
Perhaps this was the real reason for skinny pants?
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If the sensor fails through disconnection, the doors would never close since it would think something's there. If it fails through short circuit your hand will become crushed.
It is unlikely that both the physical contact and beam-break sensors would fail in this manner however.
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It is unlikely that both the physical contact and beam-break sensors would fail in this manner however.
At the risk of being accused of being a Pollyannish anarchist, has anyone ever heard of this happening?
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I saw a YouTube video of it happening to some doctor in Japan.
Considering there's like 547238573427623784628 elevators in the world, and they all make 57777 trips a day, I'll take the risk.
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Not in particular, however there are apparently several lawyers ready to sue for things like negligence of maintenance. If there's a business for it, surely it's happened, right?
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Not to mention that the motors are not very strong in the first place.
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Because that happens so often?
It happened to me recently. I was barely able to pull my arm out before the elevator slammed shut on it.
And it only takes the one time for you to lose the arm.
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I assume if the sensor fails, it would fail in the safe position, denying the elevator the ability to close the door. This is the same argument the guy at work has.
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I assume if the sensor fails, it would fail in the safe position, denying the elevator the ability to close the door. This is the same argument the guy at work has.
For common failures, I'd expect it to be designed to fail-safe, yes; I'm not sure how it works in the real world though...and such sensors can fail without really being noticed for a little while.
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And if the door sensor fails, now what?
then you get the new nickname of "Armless Arnold"
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In your hair, obviously.
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Not to mention that the motors are not very strong in the first place.
Elevator doors, maybe. But last time I traveled by train, a conductor was like a millisecond from severe cranial damage - in some Polish trains, those things have no sensors other than a timer, and they slam shut.
Judging by the lack of thanks and glares I get it looks like most people assume I was pressing the close door button to escape and they foiled me.
I miiight have unwittingly (inb4 "yeah, right") done that a few times. Luckily here people assume you're actually pressing the "open door" one.
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Elevator doors, maybe.
I have
hazyfond memories of fighting elevator doors. Somebody had been trying to force one open from the inside right before the elevator stopped. The elevator then refused to move even though we'd almost reached the platform.We had to wait for a service technician who was going to ask uncomfortable questions... or we could force two doors. I haven't since felt the urge to expand my knowledge in this area so my experience is limited to that one instance. Those doors were weak.
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The only thing I can't figure out is how to keep the change in my pockets.
I've got it! Nudity!
Or Velcro flaps on the pockets.
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At the risk of being accused of being a Pollyannish anarchist, has anyone ever heard of this happening?
Close enough?:
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Huh, he died...
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Well, from the video it certainly isn't.. Er.. Certain. He could have survived, if the lift didn't move very far. It moved 20ft...
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Huh, he died...
Well, he was a complete idiot. What on earth did he expect? That the elevator car would automatically come back just because? (Also notice that the doors started giving way before he fell through; he had lots of warning of the impending Darwin Award-winning moment…)
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I agree with everything you said.
I just marveled at the way his anger killed him..
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The way he reacted, you'd think someone was using the wrong
$HOME
directory.
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Mine is set to /dev/null!
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OH SNAP
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Dang...the biggest reason that I don't push the button is because I can't usually hit it in time...it's like I get flustered when trying to hold the door for someone and panic because the door is probably already closing. Maybe I just ride in a better class of elevator, though.