r/whatisit 17h ago

Solved! What is this swiveling hook knob thing

It’s on the door to my dad’s condo. Neither of us have any idea what function it serves.

Too close to the door to use it to hang anything decorative, and the hook can’t swivel in a way to keep the door open either. It is at about 5.5 feet off the floor give or take.

Edit: this is the outside hallway side of the door, hinge edge

276 Upvotes

33 comments sorted by

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514

u/NubmerSix 17h ago

I presume your dad's in a retirement community. My dad's place has that too.

Every night, security goes and flips that thing so it's leaning against the door frame. If/when the resident opens the door, it drops.

They use it to see if the resident has opened the door, and if I they haven't left for a day or two, they call to make sure they're okay.

192

u/solidus0079 16h ago

Solved!

Yes he does, that makes a lot of sense. They have an electronic check-in system now, but this might be an older system that was... retired.

95

u/blumpkincountry69 16h ago

Redundant doesnt mean retired. These systems should always be trained for and in place in case of systems malfunction/failure. That's what keeps things running.

22

u/solidus0079 16h ago

Makes sense but I've not noticed other doors with these in a flipped-up position. And I've been out in the hallway pretty early coming and going pretty early. I feel like I would have seen one of these flipped up.

7

u/Bazlow 5h ago

Well yea, the other post is saying they would use this in case the electronic system fails. So they CAN go back to basics, but not won't use it unless needed.

3

u/solidus0079 4h ago

Yeah I misread that post, maybe I should move in here as well. Yikes.

1

u/peachielife 7h ago

I see what you did there

-1

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10

u/Earl117 7h ago

First thought, "that's a banana"

1

u/aozzzy13 6h ago

Our hospital uses an analogous item to put up when a room has been confirmed empty during evacuation.

Theres a reflective red background behind the toggle when I the up 'clear' position. If someone has reopened the door, it's easier to see with flashlights or through smoke (apparently).

18

u/---0celot--- 14h ago

I just came to comment on how pleased I was to see the proper unit of Reddit measurement: the banana, amongst the photos.

Good work redditor! ⭐️💫☄️

16

u/solidus0079 14h ago

Thanks! Dad was rather confused when I told him I’d need a banana to get proper aid from Reddit (explained to him as ‘the internet’).

11

u/---0celot--- 12h ago

Yes. Had there been no banana, I would’ve been compelled to both mock and admonish you for not providing the banana. 🍌

23

u/ColorblindFungi 17h ago

Appreciate banana for scale. Is this an interior or exterior door and which side is it mounted on?

Looks like a pivoting door latch and it’s counter part was removed from the door frame. Idk why you’d remove one without the other, but that’s the only thing I can imagine with the context provided.

6

u/solidus0079 16h ago

Yeah I messed up by not mentioning it's on the outside side of the door, hinge edge. In my mind it was obvious, since I was standing in the hall, but obviously that's not clear in the photo. XD

21

u/GeorgeGorgeou 17h ago

I see these on the doors of nursing homes. Move it upward, and lean it against the jam. If the door is opened, it will swing down. It lets the staff know whether the occupant has left the room.

2

u/gracechaplain 3h ago

It is for hanging bananas

1

u/solidus0079 2h ago

I don’t think so, as it’s close to the door frame and the bananas would become smooshed. Only suitable for milkshakes or cylinders of imperative nature.

-3

u/anotherfreakinglogin 17h ago

Part of a swivel latch. You're missing the "base" that it would swivel into to lock the door.

swivel latch

3

u/solidus0079 17h ago

Sure looks like it, but I forgot to mention this is on the outside of the door. Would that make sense for this?

1

u/Bigbossfredo23 3h ago

Wewwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwe

7

u/blumpkincountry69 17h ago edited 17h ago

Someone removed the other half of a lock and never took it off the door?

edit i think a door prop is more correct since this was obviously intentionally painted around. Any marks on the doorframe op?

2

u/jammerfish 17h ago

Yup. Came to say this

2

u/phonnybalonny 15h ago

That’s a crank start for your house, like on a model t ford

1

u/PantoufleResearch01 14h ago

Can you hold up the ripped-off edge of a condom wrapper … for scale?
That bananana just don’t makes no scents!

1

u/MassSpectatorVids 15h ago

New Elderly prank for the retired Joker...flip all the knobs back up on your way to breakfast.

1

u/Fearless-Oven-1223 7h ago

Is that a cavendish? I need more info for proper scaling.

1

u/Naive_Noise5830 4h ago

That’s a banana, you’re welcome

1

u/Standard-Reception40 14h ago

Could you also point at it