Alarm unit for panic bar type door operator

In a panic bar door operator assembly of the type comprising a push bar moveably mounted on a housing for causing an associated door to be unlatched when the push bar is operated, the improvement comprising an alarm unit disposed on the housing in cooperative assembly relationship with the push bar for giving an alarm in response to operation of the push bar, in which said alarm unit is selectively operable to armed and disarmed settings so that when in the disarmed setting, operation of the push bar will not cause an alarm to be given but when in the armed setting, operation of the push bar will cause an alarm to be given, said alarm unit comprises a key-switch assembly via which the alarm unit is selectively operable to armed and disarmed settings, said key-switch assembly comprises a rotary actuator disk having a cooperative association with an electrical switch assembly to move said electrical switch assembly bodily on the alarm unit selectively to armed and disarmed positions corresponding to said armed and disarmed settings, said electrical switch assembly being disposed for actuation by operation of the push bar when in the armed position but not when in the disarmed position, said alarm unit comprises an alarm assembly which contains said electrical switch assembly and wherein said alarm assembly and said switch assembly are separate self-contained assemblies having separable mounting on the housing but having cooperative association when mounted on the housing.

In a panic bar door operator assembly of the type comprising a push bar moveably mounted on a housing for causing an associated door to be unlatched when the push bar is operated, the improvement comprising an alarm unit disposed on the housing in cooperative assembly relationship with the push bar for giving an alarm in response to operation of the push bar, in which said alarm unit is selectively operable to armed and disarmed settings such that in the disarmed setting, operation of the push bar will not cause an alarm to be given, but in the armed setting, operation of the push bar will cause an alarm to be given, said alarm unit comprising selectively operable means operable by authorized use means via which the unit is selectively operated to armed and disarmed settings, and an electrical switch assembly which is disposed on the alarm unit for selective bodily positioning by said selectively operable means such that when the selectively operable means is in the armed setting, said electrical switch assembly bodily occupies an armed position, and when the selectively operable means is in the disarmed setting, said electrical switch assembly bodily occupies a disarmed position in which it has a different bodily orientation on the alarm unit from that which it has when occupying the armed position, said electrical switch assembly, when in armed position, being bodily disposed for actuation in response to operation of the push bar to cause the alarm unit to give an alarm, and said electrical switch assembly, when in disarmed position, being bodily disposed so as not to be actuated in response to operation of the push bar.

In a panic bar door operator assembly of the type comprising a push bar moveably mounted on a housing for causing an associated door to be unlatched when the push bar is operated, the improvement comprising an alarm unit disposed on the housing in cooperative assembly relationship with the push bar for giving an alarm in response to operation of the push bar, in which said alarm unit is selectively operable to armed and disarmed settings so that when in the disarmed setting, operation of the push bar will not cause an alarm to be given but when in the armed setting, operation of the push bar will cause an alarm to be given, said alarm unit comprises selectively operable means via which the alarm unit is selectively operable to armed and disarmed settings, said selectively operable means having a cooperative association with an electrical switch assembly to move said electrical switch assembly bodily on the alarm unit selectively to armed and disarmed positions corresponding to said armed and disarmed settings, said electrical switch assembly being disposed for actuation by operation of the push bar when in the armed position but not when in the disarmed position, said alarm unit comprises an alarm assembly which contains said electrical switch assembly and wherein said alarm assemnbly and said selectively operable means are separate, self-contained assemblies having separable mounting on the housing but having cooperative association when mounted on the housing.

In a panic bar door operator assembly of the type comprising a push bar moveably mounted on a housing for causing an associated door to be unlatched when the push bar is operated, the improvement comprising an alarm unit disposed on the housing in cooperative assembly relationship with the push bar for giving an alarm in response to operation of the push bar, in which said alarm unit is selectively operable to armed and disarmed settings so that when in the disarmed setting, operation of the push bar will not cause an alarm to be given but when in the armed setting, operation of the push bar will cause an alarm to be given, said alarm unit comprises selectively operable means operable by an authorized use means via which the alarm unit is selectively operable means having a cooperative association with an electrical switch assembly to arm and disarm same such that when said electrical switch assembly is armed and the push bar is operated, said electrical assembly is actuated to cause an alarm to be given, said alarm unit includes a spring-loaded operator via which the electrical switch assembly is actuated, said spring-loaded operator being biased to a direction away from that for actuating said electrical switch assembly, and means performing a latching function on the electrical switch assembly upon actuation thereof by said opeator, said means performing a latching function comprising a spring-loaded member which is disposed between confronting surfaces of said operator and said electrical switch assembly which move relative to each other as said operator operates the electrical switch assembly to actuation, said spring-loaded member being operable to retracted and extended positions and being disposed on one of said confronting surfaces to ride across the other of said confronting surfaces in retracted position as said confronting surfaces move relative to each other and as said electrical switch assembly is actuated by said operator to cause an alarm to be given, said spring-loaded member operates to extended position and enters a hole in the other of said confronting surfaces which prevents the spring-loaded operator from discontinuing actuation of said electrical switch assembly after peration of the push bar has ceased, whereby an alarm once given, continues after operation of the push bar has ceased.