Door lock change

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  #1  
Old 09-22-15, 11:38 AM
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Door lock change

Hi,

I have an interior door which I cannot modify in the sense of drilling additional holes or changing completely.

Think of this like a bathroom door.
It had a lock on the inside you twist with your fingers, and on the outside there is the below.

I want to change the outside so instead of having this, I can lock it from the outside with a key.

I have no idea what to search for but surly I can buy something of a standard size, with a square thing to insert into the already existing hole which has a key lock with it.

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Your help is appreciated.
 
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  #2  
Old 09-22-15, 11:51 AM
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Welcome to the forums!

Why not just remove the bath/bed lock and install a keyed entry lock? that is what you are wanting, right?
 
  #3  
Old 09-22-15, 11:56 AM
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Unfortunately I cannot do this because I live in a rented house, so I cannot damage anything, however if I could find this thing I have in my head I can just swap it out when I leave.
 
  #4  
Old 09-22-15, 12:55 PM
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Changing the lock out shouldn't damage anything. Most locks are basically the same as far as how they install. You would of course need the landlord's permission first.
 
  #5  
Old 09-22-15, 01:10 PM
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Can you show us a picture of the rest of the lock and the door?
 
  #6  
Old 09-22-15, 03:53 PM
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Would be interested to see the remaining parts of the lock, and the door prep. You indicate non-US, perhaps knowing what country you are in might help, and the brand of lock, as well.
 
  #7  
Old 09-22-15, 06:32 PM
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Changing a door knob should not require any drilling, only need a phillips screw driver, takes about 5 min.
Save the old knob in a plastic zip lock bag and change it back when you move.
 
  #8  
Old 09-23-15, 09:27 AM
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Ok so I think I have lacked pictures...

Door: https://gyazo.com/43d6fff477836fbace57ee73442b8018
Door inside: https://gyazo.com/d8398845319d280972b7314875e4d695
After removing the thing in my original picture: https://gyazo.com/acfaa1f7d1230f890dcd011e8bf4ee61
The lock mechanism thing: https://gyazo.com/e514bf5eacd1b6655b7097b26941c362
Lock again: https://gyazo.com/076ea5823c8b7f79cdd7d538c465c32b

The make of this lock is AYR Spain.
 
  #9  
Old 09-23-15, 11:22 AM
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That isn't a normal type lock here in the USA but I have seen some like it. We have a locksmith or two that are members so hopefully they'll be able to help you.
 
  #10  
Old 09-23-15, 05:28 PM
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That is called a mortise lock in the US. I think you are out of luck as far as replacing the outer emergency unlocking device with a keyed device, at last one that will allow you to replace the emergency device at a later date.

I could be wrong and we do have a member that knows European locks well. He may take a few days to respond so hang in there.
 
  #11  
Old 09-24-15, 07:18 PM
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Good pictures, thank you. I looked at the AYR website and see that they have the key cylinder outside with thumbturn ("muletilla") inside, but unlike the simple privacy function like you have, the key cylinder function seems to require through-bolting below the lock body which would require drilling holes that would show if you ever tried to restore the original function. The company may offer however, an adaptor ring for use with the privacy function when converting from the key cylinder function that would cover these holes. I don't think your landlord would object to that.
 
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