NYKeys Posted August 18, 2017 Report Share Posted August 18, 2017 Anybody good with mechanical things? I am trying to find the best way to detect the locked or unlocked state of a multi point uPVC door lock (or the euro cylinder itself). Like a uPVC version of Chubb 3G114E. Obviously a microswitch is probably the answer - but where to place it and how? Quote Link to comment Share on other sites More sharing options...
MarkD Posted August 18, 2017 Report Share Posted August 18, 2017 Are you wanting to detect the handle up movement only or the physical locking of the cylinder? It would depend a lot on the mechanism, if the key throws the bolt you could have a switch on the bolt keep but anything else would need a switch in the gearbox itself. If you only wanted to detect the handle up movement then you could possibly place a switch somewhere along the strip. Quote Link to comment Share on other sites More sharing options...
grahamparker Posted August 18, 2017 Report Share Posted August 18, 2017 My question would be WHY. What are you trying to achieve, how will it be powered ? Will it fit all gearboxes in all backsets ?. Seems a strange thing to be doing, you could always replace the mechanism with a self closing one without the need for switches and indicators. Quote Link to comment Share on other sites More sharing options...
NYKeys Posted August 21, 2017 Author Report Share Posted August 21, 2017 My question would be WHY. What are you trying to achieve, how will it be powered ? Will it fit all gearboxes in all backsets ?. Seems a strange thing to be doing, you could always replace the mechanism with a self closing one without the need for switches and indicators. Hi Graham - it's no stranger than the Chubb 3G114E and the use case is exactly the same - being able to check from either an alarm panel or a simple 9v battery powered LED the locked/unlocked state of a set of uPVC doors. How many times do you check yours at night before being reassured they are in fact, locked? You can't tell just from looking at them. Quote Link to comment Share on other sites More sharing options...
Mick Friend Posted August 21, 2017 Report Share Posted August 21, 2017 I use the GU/ERA and Winkhaus make a similar deadlocking MPL when the door closes the bolts fire/cams drop - if there is a pad outside (fixed) and no letterplate it is secure add a motor and it will open with a fob Quote Link to comment Share on other sites More sharing options...
grahamparker Posted August 21, 2017 Report Share Posted August 21, 2017 The Chubb lock is powered by mains from the Alarm panel not battery. The cable is run through the width of the door, think you might struggle with that on Upvc. Quote Link to comment Share on other sites More sharing options...
Mick Friend Posted August 21, 2017 Report Share Posted August 21, 2017 Not Mains must be 12 or 24V and it is possible to run cable through the channel on a UPVc door I do it every week, I also have a drill to go front to back on composite and wooden doors and I have never seen a chubb lock motorised- I have seen them with a shunt switch in them to activate the alarm in which case it has no power in it just a make/break connection by a micro switch. Taylor Locks make motorised locks and even a motorised spindle, See the last LASM for a motorised cylinder. You can also run a cable around the eurogroove and then cap it with a eurogroove capping running the cable behind the MPL - Quote Link to comment Share on other sites More sharing options...
grahamparker Posted August 21, 2017 Report Share Posted August 21, 2017 When I said mains I meant not a 9v battery as mentioned. Quote Link to comment Share on other sites More sharing options...
NYKeys Posted August 22, 2017 Author Report Share Posted August 22, 2017 When I said mains I meant not a 9v battery as mentioned. Hi Graham. The 9v battery was simply an example I wouldn't get hung up on it. If I was able to fit a microswitch somewhere inside the keep or mech, I could make a very simple circuit to light an LED using a 9V battery. That was all I meant. I think you'd be able to do the same thing with the Chubb mortice lock. I see no reason why you couldn't wire it up to a custom circuit instead of an alarm panel. Quote Link to comment Share on other sites More sharing options...
Bren Posted August 29, 2017 Report Share Posted August 29, 2017 Can you not just use a matchstick like that bloke in 'Day of the Jackal' .. Quote Link to comment Share on other sites More sharing options...
Davet2001 Posted December 25, 2019 Report Share Posted December 25, 2019 Old post but I’ve done exactly this. I too wanted to know if the UPVC door was shut and locked, not just closed or handle up. It’s all about knowing if the door is secure which is a completely valid requirement. one door was easy - the bolt moves across when you lock it, so mounted a micro switch in the frame connected to a modified zigbee xiaomi aqara door sensor. Another door was not so easy. In the end I did it by drilling a small hole in the sliding part of the mechanism that moves when It locks, then mounting (interference fit + glue) a 90degree bent nail that moves towards the frame. then a similar micro switch in the frame again soldered to a modified xiaomi aqara to detect the nail movement. Tips for anyone trying to repeat this: - mechanical and electronic skills required! - get the door mechanical bits super reliable before you try mounting the micro switch. - micro Jst connector pairs are cheap on eBay and a great way to keep all the soldering on the workbench. -control your swarf when drilling e.g. with masking tape. don’t let it fall into the lock mechanism -take the opportunity to regrease your lock have fun! Quote Link to comment Share on other sites More sharing options...
NYKeys Posted January 2, 2020 Author Report Share Posted January 2, 2020 Just to say I did go with the route Dave outlined in September and it works well. For my non-pvc locks I use a mini magnet mounted on the bolt and reed sensor in the keep. Would like to see pics of the bent nail approach if there are any! Quote Link to comment Share on other sites More sharing options...
Davet2001 Posted January 11, 2020 Report Share Posted January 11, 2020 Here’s a picture of the improvised nail-actuator that acts on the microswitch in the frame. MarkD 1 Quote Link to comment Share on other sites More sharing options...
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