ANTI-LOCK-IN DEVICE SUITS SLIDING DOORS
December 1st 2004 Castell Safety International has developed a new version of its Entry Safe key interlock. Designed to control access to hazardous areas, it can be fitted to sliding as well as hinged doors.
The device is normally used on machine guarding where tongue switches isolate machinery before access to hazardous areas is granted. Castell says the risk with tongue switches is that the operator may disappear from view after passing through the open guard. Inadvertently, a second operator could then lock in the first, putting him at risk of injury when the machine is restarted.
Entry Safe gives the operator complete control over the restarting of the machine. It latches the door in a locked position.
When the door is partially opened, Entry Safe unlocks and releases a key into the operator’s hand. This is retained by the operator while inside the hazardous area. During this time, the interlock prevents the guard door being re-closed. More articles from Castell Safety International Ltd: | 
