Hinged Door Bar Mounting for Break-in Prevention
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Solution Overview
Problem
Conventional door security devices require damage to walls or door moldings to provide forcible entry protection, compromising aesthetics and structural integrity.
Innovation Solution
A door bar system with hinged brackets mounted to the inner wall periphery, allowing a door bar to pivot between a secured and collapsed position, engaging with a door bar engager to prevent break-ins without damaging the surrounding structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional door security devices are mounted through the front of the door molding and wall to reach wall studs, then forcible entry protection is provided, but the wall or door molding must be damaged
Solution Approach 1:
The patent inverts the conventional mounting approach by mounting the door bar system from the interior side of the door opening rather than through the front. The hinge brackets are attached to the interior face of the door jamb, and the door bar extends horizontally to engage with the opposite jamb, eliminating the need to drill through or damage the exterior wall structure while still providing effective forcible entry protection.
Solution Approach 2:
The patent transitions from a vertical mounting approach (through the wall depth) to a horizontal dimension approach (across the door opening). The door bar operates in the horizontal plane, spanning between opposing jambs, which allows it to provide security without penetrating the wall structure vertically, thus avoiding damage to the wall or door molding.
2Reliability
If door security devices are connected directly to the wall to reach wall studs, then forcible entry protection is provided, but the aesthetics and structural integrity of the surrounding wall are compromised
Solution Approach 1:
The patent inverts the mounting location from exterior wall penetration to interior jamb attachment. By mounting the hinge brackets on the interior face of the door jamb (which is already a structural element of the door assembly), the system provides secure anchoring without compromising the wall's structural integrity or aesthetic appearance.
Solution Approach 2:
The door jamb serves as an intermediary structure between the mounting system and the wall. The hinge brackets attach to the jamb rather than directly penetrating the wall, using the jamb as a mediator that provides secure mounting points while preserving the wall's structural integrity and aesthetic appearance.
3Reliability
If door security devices are connected directly to the wall to reach wall studs, then forcible entry protection is provided, but the aesthetics of the surrounding wall are compromised
Solution Approach 1:
The patent inverts the mounting approach to hide the security device within the door opening structure rather than having it protrude from or penetrate the wall. The hinge brackets are mounted on the interior jamb face, and the door bar operates within the door opening space, making the system aesthetically pleasing while maintaining effective forcible entry protection.
Data Source
AI summary
A door bar system is provided. The door bar system is adapted to mount to the periphery of the opening of a secured door to prevent break ins therethrough. The door bar system provides at least one systemic hinged bracket providing a mounting plate to connect to the periphery of the door opening, therethrough, and into the supporting wall of the door opening. Each hinged bracket has a door bar engager pivotally connected to the mounting plate for moving between a collapsed condition, further lowering its profile, and an operable condition for engaging a door bar for locking the door in a secured configuration.