Safety door

The combination of a safety door and doorway frame wherein:

• said safety door includes a door frame, a wooden door core, an actuator, a plurality of laterally extending door slots and a plurality of radially extending bars;
• there being six of said plurality of radially extending bars;
• said actuator being centrally located within said wooden door core and adapted to be manually actuated to lock and unlock the safety door;
• said safety door being sufficiently solid to support said actuator and said six radially extending bars;
• said plurality of radially extending bars being in communication with said actuator and mounted to be extended radially from the plurality of laterally extending door slots in the safety door and retracted into the plurality of laterally extending door slots in the safety door by the actuation of the actuator;
• said wooden door core having an actuator opening supporting said actuator and a plurality of radially extending openings each of which supports a corresponding one of said plurality of radially extending bars;
• each of said radially extending openings extending in the direction of said plurality of radially extending bars, whereby said plurality of radially extending bars move within said plurality of radially extending openings;
• a plurality of doorway openings in said doorway frame each being aligned with a corresponding one of the radially extending openings in said safety door, whereby movement of the plurality of radially extending bars extends them into and retracts them from the doorway frame to lock and unlock said safety door;
• said plurality of radially extending openings in said wooden door core and said plurality of laterally extending door slots being sufficiently larger in the plane of the doorway frame than the diameter of said plurality of radially extending bars to permit both lateral and longitudinal movement of said plurality of radially extending bars.

A safety door comprising:

• a door frame;
• a wooden door core;
• laterally extending door slots in the safety door;
• a central actuator having a center of rotation;
• a plurality of bars radially extending at spaced apart locations from said central actuator, whereby said plurality of bars support substantially the entire safety door;
• said central actuator being pivotally mounted within said safety door for rotation therein about the center of rotation;
• each of said plurality of bars having a first end pivotally mounted to said central actuator at circumferentially spaced apart locations about said center of rotation whereby a corresponding second end of each of said plurality of bars is retracted into laterally extending door slots in the safety door by rotation of said central actuator in a first direction and extended from the laterally extending door slots in the safety door by rotation of said central actuator in a second direction;
• said wooden door core including radially extending openings extending in the direction of said plurality of bars, wherein said plurality of bars are supported by and move within said radially extending openings;
• each of said radially extending openings in said wooden door core extending in the direction of a corresponding one of said plurality of bars and being sufficiently larger than the diameter of each of said plurality of bars to permit both lateral and longitudinal movement of said plurality of bars within said radially extending openings and said laterally extending door slots.

A method of locking a door comprising the steps of:

• closing the door;
• actuating an actuator centrally located within a door frame and a wooden door core of said door by moving a handle connected to said actuator;
• moving a plurality of bars radially though openings in said wooden door core into a doorway frame at spaced apart locations whereby the door is securely locked and supported substantially throughout the door against battering by said plurality of bars and said wooden door core;
• the step of actuating said actuator including the step of rotating the actuator about a center of rotation and orbiting a first end of each of said plurality of bars about the center of rotation, wherein the first end of each of said plurality of bars is pivotally mounted to said actuator at circumferentially spaced apart locations about the center of rotation;
• the step of moving said plurality of bars includes the step of moving at least four bars with at least one bar moving into the top of said doorway frame, at least one bar moving into the bottom of said doorway frame, at least one bar moving into one of sides of said doorway frame and at least one bar moving to the other side of said doorway frame, wherein said actuator is actuated manually by a handle to move the at least four bars in response to movement of said handle with a mechanical advantage between the handle and said at least four bars provided by said actuator, wherein the step of moving said handle causes movement of corresponding first ends of said plurality of bars, wherein the distance said corresponding ends of said plurality of bars moves is shorter than the distance said handle moves.

A method of manufacturing a safety door comprising the steps of:

• obtaining a door blank having sufficient solid material within it to support a rotary actuator and bars;
• forming radially extending openings from a central location in said safety door;
• forming an opening by which the radial extending openings connect with a central opening;
• assembling an actuator in the central opening;
• and
• pivotally mounting a plurality of said bars to the actuator wherein the bars are moveable in the openings in radial directions from the actuator in at least four directions in the plane of the door blank.