Locking and unlocking arrangements for exit device assemblies for doors

A method for controlling ingress and egress through a door, the door including an exit device assembly, the exit device assembly including a pushbar assembly mounted to an egress side of the door, a trim mounted to a non-egress side of the door, at least one remote latch mechanism mounted on the egress side of the door, a latch control mechanism mounted to the door for manipulating the at least one remote latch mechanism, a key mechanism mounted on the non-egress side of the door separate from the trim, and a trim lock device on the egress side of the door, the method comprising:

• positioning the trim lock device in an unblocking position to provide ingress through the door via a handle on the trim, wherein the handle is connected to the latch control mechanism with an input mechanism, and the handle is operable to manipulate the latch control mechanism through the input mechanism from a deactuated state, in which the at least one remote latch mechanism secures the door in the closed position, to an actuated state, in which the at least one remote latch mechanism is controlled by the latch control mechanism to allow the door to be moved from the closed position;
• positioning the trim lock device in a blocking position to block the input mechanism and disable ingress through the door via the handle on the trim, wherein in the blocking position, ingress through the door is only enabled via a key inserted into the key mechanism to unlock a normally locked manual actuator of the key mechanism, the manual actuator being connected to the latch control mechanism such that the unlocked manual actuator is operable to manipulate the latch control mechanism from the deactuated state to the actuated state while the trim lock device is in the blocking position, wherein the pushbar assembly is always enabled to manipulate the latch control mechanism from the deactuated state to the actuated state while the trim lock device is in both the blocking position and the unblocking position;
• and
• controlling the at least one remote latch mechanism with the latch control mechanism via a control rod, the control rod connecting the at least one remote latch mechanism, wherein the manual actuator of the key mechanism is connected to the control rod and rotation of the manual actuator axially displaces the control rod to manipulate the latch control mechanism from the deactuated state to the actuated state.

An exit device assembly configured for mounting to a door, the exit device assembly comprising:

• a pushbar assembly configured for mounting to an egress side of the door, the pushbar assembly including a pushbar movable between a projected positon and a depressed position;
• a trim configured for mounting to a non-egress side of the door, the trim including a handle;
• at least one remote latch mechanism for mounting on the egress side of the door and configured lock the door in a closed position;
• a latch control mechanism mounted to the door, the latch control mechanism being operably connected to the at least one remote latch mechanism with a control rod, the latch control mechanism further being operably connected to the pushbar, the latch control mechanism further being operably connected to the handle with an input mechanism, wherein movement of the pushbar from the projected position to the depressed position moves the latch control mechanism from a deactuated state, in which remote latch mechanism locks the door in the closed position, to an actuated state, in which the at least one remote latch mechanism is controlled by the latch control mechanism to allow the door to be moved from the closed position;
• a key mechanism on the non-egress side of the door, the key mechanism including a lock cylinder and a manual actuator that is selectively locked and unlocked by manipulation of the lock cylinder, wherein the manual actuator is connected to the control rod such that rotation of the manual actuator, when the key cylinder is unlocked, axially displaces the control rod to manipulate the latch control mechanism from the deactuated state to the actuated state;
• and
• a trim lock device on the egress side of the door, the trim lock device being movable by a user on the egress side between a blocking position, in which the trim lock device blocks the input mechanism to prevent the handle of the trim from manipulating the latch control mechanism from the deactuated state to the actuated state, and an unblocking position, in which the handle of the trim is operable to manipulate the latch control mechanism from the deactuated state to the actuated state.