Safety specialist Fortress Interlocks has introduced an ingenious new design of Slide Bar for use with its AutoStop gate switch unit. The robust Slide Bar, cast from stainless steel, can be used on both hinged and sliding doors and provides an enhanced level of safety without compromising functionality and ease of access.
As well as providing all the safety features of a gate switch, the Slide Bar design ensures the power cannot be turned on simply by slamming the door behind an operator. The Slide Bar also features padlock holes for lock-out operations and an internal release handle which acts as an emergency stop.
The Slide Bar is a long bar with an actuator at the head. When the door is shut, the slide bar is easily pushed along and the actuator tongue engages with the AutoStop unit, turning the power on. When the door has to be opened, it is easily retracted, removing the actuator from the unit and turning the power off.
As the bar has to be slid into position to re-energise the machine, closing the door and returning the power has to be a deliberate action that can only be done from the outside. On the inside of the door is an internal release handle which allows the bar to be retracted from the head from inside the guarding but cannot be used to insert the actuator into the head.
When the bar is retracted and the tongue is out, padlocks can simply and easily be inserted into the bar preventing the machine from being restarted while operators are still within the hazardous area. In addition, the casing is designed so that the padlock holes are impossible to use when the slide bar is in the shut position.