| 摘要 |
A high-security auxiliary door locking device includes a brace having an upper section which pivotally attaches to the inside of a door, and a lower section which engages with the floor at a distance spaced apart from the door. The lower section includes a pair of floor engaging ends, and the upper section preferably pivotally attaches to the inside of the door at a point above the level of the door knob. Although a single pivotal attachment may be used, in the preferred embodiment, a transverse bar is used across the back of the door, which hinges at two points near the side edges of the door. With such an arrangement, application of an entry force to the outside surface of the door, causes the door to move upwardly against the jam for additional resistance. To obtain entry from outside, a small lockable high-security door may be provided so as to enable an individual with a key to unlock the door, reach in, and pull up on the brace to gain entry. Preferably a chain is provided for such purpose. To enhance aesthetic appeal, the brace may be embedded within the door when folded up or down, with outer coverings and surfaces being used to obscure the structure when not in use.
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