Timed door latch release

[Magfree]

I have a personnel door that I hold open with a bungie cord. It also has a bungie that will pull the door closed when released. My birds go in to roost at sunset on their own.

I need a timed latch device that will release the door and allow it to close when I fail to get home at dusk. Don't want any unwelcome visitors.

Any suggestions?

 

[aart]

I wouldn't count on a bungie holding the door closed against a wily dexterous predator like a raccoon.

Not sure you'd want the door slamming shut either.

I'm sure someone somewhere could devise a mechanism attached to a timer to release a pin holding a bungie hook...but not me, sorry.

Or you could buy an automatic chicken door, there's bunch on the market if you have the need and the cash.

 

[cavemanrich]

Hi,
There are a few items available to mastermind what you want to do. I can do such (for myself ) but it would get quite involved to set up the whole thing together. It would also be custom fit to a particular door and framing setup. It involves something like an Electric door strike. combined with an Electric timer and a time out device. so the buzzing only lasts a minute or less. Can also be achieved with micro switches and relays. All this could add up to more $$$ than an easier option. An Automatic pop chicken door. Closes on time or light outdoors. My one of choice would be the Ador1. Battery operated and about 200 bones. There are other models in similar price as well. (I do not sell, this or anything else)
I always choose the easiest option.
WISHING YOU BEST..

AND