| 摘要 |
A door security bar assembly includes inner and outer wall anchor plates at each side of the doorway, which sandwich the wall structure therebetween. The external plates preclude forcing the door to pull any inner attachment screws from the inner structure, as is possible with most prior door security bars. The present bar includes a combination hinge and pivot attachment at the hinge side of the doorway, allowing the bar to be pivoted parallel to the hinge line for storage when not deployed across the door. The bar also telescopes, with a spring urging the bar to a fully extended position to ensure engagement with the retaining fixture at the latch side of the door. A lock or hasp may be installed for further security, if desired. An additional door knob retainer may be provided optionally, for precluding knockout of the door knob or lock to access the latch.
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