Thread: what lock mechanism for pedestrian gate? magnetic or mechanical?

Put the electric latch on a timer delay leaving the latch in the open position, then the closer will not have the resistance of the latch stopping the gate from fully closing, you can time how long it takes for the closer to fully close the gate and set the delay a few seconds longer or instead of a timer delay you could have the latch in the unlocked position until the gate closers against a contactor like limit switches you get on CNC machine but instead of the limit switch stopping say the Z axis it releases the electric latch

Originally Posted by Camelot

Put the electric latch on a timer delay leaving the latch in the open position, then the closer will not have the resistance of the latch stopping the gate from fully closing, you can time how long it takes for the closer to fully close the gate and set the delay a few seconds longer or instead of a timer delay you could have the latch in the unlocked position until the gate closers against a contactor like limit switches you get on CNC machine but instead of the limit switch stopping say the Z axis it releases the electric latch

latch doesn't work like that. when closing the gate it doesnt retract no matter if its energised or not, only the latch part on the gate retracts

So when it's energized does it become loose allowing the latch bolt to release the gate? if so the latch should give the latch bolt less resistance when energized, thus the timer idea, it is the resistance which is stopping your closer from working every time, some closers have a latch action, so you can set them to close slowly until they get to say the last 150mm of closing and then the closer exerts more force (latch action) this is intended to overcome the problem you are having.

wozzzzza,
just remember that if that gate is located on a pedestrian exit route, it should / must?
1. open outwards;
2. be able to be opened without the use of a key or any unlocking device other than a crash bar that releases the lock

Originally Posted by ian

wozzzzza,
just remember that if that gate is located on a pedestrian exit route, it should / must?
1. open outwards;
2. be able to be opened without the use of a key or any unlocking device other than a crash bar that releases the lock

yes all conditions met.

Originally Posted by Camelot

So when it's energized does it become loose allowing the latch bolt to release the gate?

doesn't work like that, you can put a lot of force onto that latch and it wont unlatch while closing as it requires force sideways to unlock like when it is opened it is forced sideways to unlatch it