Door control apparatus

摘要

A door control apparatus and methods for controlling a door motion device for a hinged door and, optionally, illuminating a designated area on the floor. During the time the designated area is illuminated, a person can expect that the door will not close. The door control apparatus may include control circuitry, and a sensor, and optionally a light emitter and/or a sound emitter. The sensor detects a person proximate to the door and signals the control circuitry upon a detection event. The light emitter is also connected to the control circuitry. Upon a detection event, the control circuitry signals the light emitter to produce light and signals the door motion device to hold the door open. The light emitter directs light to form an image on the floor in the designated area. The light emitter may be, for example, a laser generator or a light emitting diode lamp.

主权项

1. A door control apparatus in electrical communication with an electromechanical door holder for operative connection to a hinged door, the electromechanical door holder including a door closer for applying a closing action to the hinged door and a solenoid disposed in the door closer operable to close a valve to prevent the flow of hydraulic fluid in the door closer to cause the hinged door to stay open, the hinged door being above a floor and pivotally movable over a range of open positions between a closed position and a fully open position and being releasable by a person manually opening the door at a release position anywhere in the range of open positions, and the door being mounted to a structure surrounding the door in the closed position, the structure including a door frame and a wall, the door control apparatus comprising:
control circuitry; and a sensor adapted to detect a person, object, or both in a first designated area proximate to the door, the sensor connected to the control circuitry, wherein the sensor is operable to signal the control circuitry upon a detection event,wherein upon a detection event the control circuitry is operable to signal the solenoid to close the valve and cause the electromechanical door holder to hold the door open at a release position that is variable and is not preset, such that the release position may automatically, without manually actuating a switch, be located at any position within the range of open positions of the door.