Door Security and Closing Device

摘要

A door security and closing device is provided that is mountable to the frame of a doorway. The device comprises a movable arm that is positioned within the swing path of a door to resist and close the door shut in response to pressure applied to the door, or input from the user. The movable arm has a retracted position, an extended position, and a stowed state. In the retracted position, the arm is in the swing path of the door and allows partial opening of the door. If pressure is applied to the arm once the door is opened, a force transducer registers the force applied and the arm is directed to close the door in response. The system is controlled by a processor, a motor controller, and an electric motor. Switches are provided to register the position of the arm, while user buttons allow operable movement thereof.

主权项

1) A door security and closing device, comprising:
a housing unit supporting a controller assembly and a movable arm; a power supply; the housing unit adapted to be secured to a door frame of a door; the movable arm having an extended position disposed within the swing path of the door and against an interior surface of the door when the door is closed; the movable arm having a retracted position within the swing path of the door and offset from the interior surface of the door when the door is closed; the movable arm having a stowed position whereby the movable arm is outside of the swing path of the door; the housing supporting an electric motor and a motor controller assembly; the motor controller assembly further comprising a processor, a motor driver, a force transducer, a retract switch, an extend switch, an extend limit switch, and a retract limit switch; the force transducer measuring the force applied to the movable arm when pressed upon by the door; the retract limit switch closing when the movable arm is in the retracted position; the extend limit switch closing when the movable arm is in the extended position; wherein the processor and motor driver direct the electric motor to move the movable arm into the extended position until the extend limit switch is closed when the extend switch is activated; wherein the processor and motor driver direct the electric motor to move the movable arm into the retracted position until the retract limit switch is closed when the retract switch is activated; wherein if the force transducer measures a predefined force on the movable arm when in the retracted position, the processor and motor driver direct the electric motor to move the movable arm into the extended position until the extend limit switch is closed.