Door Security and Closing Device

• US 20160060923A1
• Filed: 08/24/2015
• Published: 03/03/2016
• Est. Priority Date: 08/28/2014
• Status: Active Grant

• Current Assignee: Glenn Ford
• Original Assignee: Glenn Ford
• Inventors: Ford, Glenn
• Granted Patent: US 10,047,545 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E05B 47/02 Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means by means in the striker E05B63/248
• CPC Class Codes: E05B 63/0004 Additional locks added to existing lock arrangements
• CPC Class Codes: E05B 63/0052 Locks mounted on the "frame" cooperating with means on the "wing" E05B47/0046, E05B65/0829, E05B65/0847, E05B65/0882 take precedence
• CPC Class Codes: E05C 17/56 by magnetic or electromagnetic attraction or operated by electric or electromagnetic means for closed wings E05C19/16; operation of locks or fasteners by electric or magnetic means E05B47/00
• CPC Class Codes: E05F 15/70 with automatic actuation

Abstract

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.

Claims

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.

2. ) The door security and closing device of claim 1, further comprising:

a hydraulic cylinder between the electric motor and the movable arm;

the electric motor driving a fluid pump that drives hydraulic fluid to a first end or a second end of the hydraulic cylinder to move the movable arm from the working end of the hydraulic cylinder;

a valve for operatively diverting the hydraulic fluid to the first end or second end of the hydraulic cylinder;

wherein the movable arm is moved into the extended position when the electric motor drives the fluid pump and the valve is diverting hydraulic fluid into the second end of the hydraulic cylinder;

wherein the movable arm is moved into the retracted position when the electric motor drives the fluid pump and the valve is diverting hydraulic fluid into the first end of the hydraulic cylinder.

3. ) The door security and closing device of claim 2, wherein:

the hydraulic cylinder and the movable arm are supported along the door frame by a mounting member and a hinge;

the hinge operatively allowing the hydraulic cylinder and movable arm to be pivoted into a working position and the stowed position;

whereby in the working position, the movable arm can move between the extended position and the retracted position.

4. ) The door security and closing device of claim 3, wherein:

the hinge further comprises a locking member to prevent pivoting of the hydraulic cylinder and movable arm about the hinge.

5. ) The door security and closing device of claim 4, wherein the locking member further comprises a kickstand member.

6. ) The door security and closing device of claim 1, further comprising:

a gear assembly between the electric motor and the movable arm;

the gear assembly comprising a worm gear driven by the electric motor;

the worm gear being meshed with an intermediate gear on a gear shaft;

a drive gear disposed on the gear shaft and rotating in unison with the intermediate gear;

the drive gear having a smaller diameter than the intermediate gear;

the drive gear being meshed with a movable arm gear connected to the movable arm;

wherein the movable arm is moved into the extended position when the electric motor drives the worm gear in a first rotational direction;

wherein the movable arm is moved into the retracted position when the electric motor drives the worm gear in a second rotational direction.

7. ) The door security and closing device of claim 6, wherein:

the gear assembly, the electric motor, and the movable arm are supported along the door frame by a mounting member and a hinge;

the hinge operatively allowing the gear assembly, the electric motor, and the movable arm to be pivoted into a working position and the stowed position;

whereby in the working position, the movable arm can move between the extended position and the retracted position.

8. ) The door security and closing device of claim 7, wherein:

the hinge further comprises a locking member to prevent pivoting of the gear assembly, the electric motor, and the movable arm about the hinge.

9. ) The door security and closing device of claim 8, wherein the locking member further comprises a kickstand member.

10. ) The door security and closing device of claim 1, further comprising:

a pneumatic cylinder between the electric motor and the movable arm;

the electric motor driving a fluid pump that drives compressed air to a first end or a second end of the pneumatic cylinder to move the movable arm from the working end of the pneumatic cylinder;

a valve for operatively diverting the compressed air to the first end or second end of the pneumatic cylinder;

wherein the movable arm is moved into the extended position when the electric motor drives the fluid pump and the valve is diverting compressed air into the second end of the pneumatic cylinder;

wherein the movable arm is moved into the retracted position when the electric motor drives the fluid pump and the valve is diverting compressed air into the first end of the pneumatic cylinder.

11. ) The door security and closing device of claim 10, wherein:

the pneumatic cylinder and the movable arm are supported along the door frame by a mounting member and a hinge;

the hinge operatively allowing the pneumatic cylinder and movable arm to be pivoted into a working position and the stowed position;

whereby in the working position, the movable arm can move between the extended position and the retracted position.

12. ) The door security and closing device of claim 11, wherein:

the hinge further comprises a locking member to prevent pivoting of the pneumatic cylinder and movable arm about the hinge.

13. ) The door security and closing device of claim 12, wherein the locking member further comprises a kickstand member.