Door lock construction

Hello everybody,

I found a nice & easy way to make a door lock, that might be worth sharing. I did see something similar somewhere before, but I cannot find it anymore. However, take a look at the pictures.

The metal rod is 6mm / 0,236 inches in diameter, and it has quite some flexibility before deforming/bending. At first I had that rod straight, which worked as well, but much better with the 180 degree bending, this gives the rod more length and thus more flexibility. Like this the door lock doesn’t need any movable parts.

Note that the hook is only welded to the doorframe on it‘s lower part, while the upper part has a tiny bit of air in between the rod and the door to move freely.

Mounting the nuts inside the doorframe is rather easy for Shorty and DSR3 doorframes, because they have an opening at the right spot. When using a stick weld it’s possible to weld through this opening.

Note that the nuts are not welded directly onto the doorframe, but on a stripe of metal, wich is tagged to the doorframe. One might come away with simple sheet metal screws, but I don‘t trust them that much.

The holes for the screws in the lock are wider than the screws, so the lock is adjustable.

That's a lovely elegant design Matthias. I like the lack of moving parts - nothing to seize up!
Do you find the knob is getting hot? I Think that the wooden knob (although it looks nice) might not be durable.

Nancy Reading wrote:Do you find the knob is getting hot? I Think that the wooden knob (although it looks nice) might not be durable.

Hello Nancy,
I‘m happy you like it!
the wooden knob is a getting a bit warm, but far away from getting hot.