| 主权项 |
1. A tilt up door and mounting frame assembly for an opening in a building, comprising:
a mounting frame assembly mountable within an opening of a building, the mounting frame assembly including a top horizontal frame member, a first vertical frame member having a top end and a bottom end and secured by the top end to a first end of the horizontal frame member, a second vertical frame member having a top end and a bottom end and secured by a top end to a second end of the horizontal frame member, door panel axle vertical guides mounted within each vertical frame member, a slot defined in the top end of at least one vertical frame member for pivotally and slidably receiving a pin carried at an upper end of a control arm, a stabilizer frame component secured near the top of at least one vertical frame member and a notch defined at the top end of at least one vertical frame member for receiving a lock tab; a single panel door having an upper edge, side edges, a vertical center of gravity, an outside surface (facing away from the building) and an inside surface (facing into the building), horizontally aligned axles extending laterally from each side edge of the door at or above the vertical center of gravity of the door defining a door pivot axis, each axle pivotally and slidably engaging a corresponding door panel axle vertical guide, a stabilizer door component secured to a side edge of the door on the same side as the vertical frame member with the stabilizer frame component, and a lock tab secured to the upper edge of the single panel door for engaging the notch defined at the top end of at least one vertical frame member; a control arm having a lower end with a lower end pivot pin and an upper end with an upper end pivot pin, the control arm lower end pivot pin being pivotally secured to the single panel door and the control arm upper end pivot pin being pivotally and slidably secured within the slot defined in the top end of a vertical frame member, the control arm lower pivot pin being positioned outwardly downward of (further interior of the building than) the control arm upper pivot pin; at least one linearly extendable actuator having an upper end and a lower end, pivotally mounted by the upper end of the linearly extendable actuator to a door axle and secured by the lower end of the linearly extendable actuator to the mounting frame assembly; a linearly extendable actuator control assembly in communication with the linearly extendable actuator to control extension and retraction of the linearly extendable actuator to open and close the door; wherein, when the door is moved from a closed position to an open position, the control arm on the mounting frame assembly permits limited vertical movement of the door to release the lock tab from the vertical frame member notch so the door can rotate to its open position, and when the door is moved from its open position to its closed position, the lock tab engages the vertical frame member notch as the door is closed to prevent the door from rotating; and wherein, when the door is in its open position, the stabilizer frame and door components meet in mating relation to stabilize the door. |
