
Innovative door handle system, designed by Arnaud Lapierre, promises to ensure your privacy by hiding the knob when the door is locked.
Doorknob Condition uses clever pulley system that retracts the exterior door knob when pulled from the inside. [via]









izzy
that’s kind of cool.
Nov 15th, 2009
GustaveCo
Genius.
I want that.
Nov 15th, 2009
laura
that’s pretty ingenious. i’m wondering if it works the other way around though, which would cause problems when the person is locked in
Nov 15th, 2009
Julie
That’s pretty sweet… Although is that a keycard slot for getting in from the outside even if it is locked?
Be amazin for public toilet doors
Nov 15th, 2009
:D
pure genius…!…
Nov 15th, 2009
@jodie_nodes
Unless there is another mechanism on the other side to click/lock it… I’m thinking that anyone with a suction cup or chewing gum could get it open…
Nov 15th, 2009
Paul Sample
Wooow that’s really ingenious, I love it!
Nov 16th, 2009
Ben
Surely the fact that it is locked stops the door from being opened. I think it is a solution looking for a problem
Nov 16th, 2009
Dominic
Cool i guess
Nov 16th, 2009
Critical Eye
Great design… adds security when the door is locked, instantly shows the state of the lock, and looks cool.
Nov 16th, 2009
Machine
The only problem i see with this nice solution is that somebody outside might get his fingers squeeze when trying to open the door while somebody is inside and just pulling the knob.
Nov 16th, 2009
David
As is often the case, some of the best ideas are some of the most simple. Genius.
Nov 16th, 2009
Kirvi Inci
I can see Fire Marshalls pitching a serious fit about these. They are interesting though.
Nov 16th, 2009
Karin Stewart
OOOH!!! I love the security…and the privacy! Let’s go buy one and test it out!
Nov 16th, 2009
John
Okay, now THAT is cool and ingenious! Not like that paper sneaker thing.
Nov 16th, 2009
Perigee
just a waste, complex mechanism leads to failure, since the knob should carry pull/push force and turn force ….
Nov 16th, 2009
Josh
What if you hit it accidentally from the outside? :-P
Nov 16th, 2009
Angel
I love it! Where can I buy?
Nov 17th, 2009
Roland
awesome :) and so simple….damn, simple things are the best :)
Nov 17th, 2009
Hillie
Yes i totaly agree with Critical Eye! Nice add on security and a great way to see if a door is locked in big toilet rooms!
Nov 17th, 2009
Duke
I could use one of this at my house to keep my little brother out of my room
Nov 19th, 2009
Dat
What if you were to suction cup that end and pull back…?
Great design though.
Nov 22nd, 2009
Nanuk
It’s nice for toilets, but a stupid concept for any other door since it clearly tells you whether someone’s inside or not (unless of course you can push it in from the outside as well) which provides a nice invitation for burglars.
Nov 23rd, 2009
Dude
Interesting idea, though I doubt something like this would ever be picked up simply because of the potential for abuse. What’s to keep someone from putting the handle in ‘backwards’ and using it to keep someone in, rather than out.
Feb 1st, 2010