Pivotable Wall-Mounted Door Barricade for Inward-Swinging Doors
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Solution Overview
Problem
Existing door barricades for inward-swinging doors are inherently weak as they rely on anchoring to the door jamb, making them susceptible to being blown off by focused force, and require moving heavy furniture during emergencies, which is dangerous and inefficient.
Innovation Solution
A barricade system that mounts to an adjacent wall or ceiling, avoiding reliance on the door jamb for support, and pivots into place to extend across the door, using a right-angle arrangement of members and tension members to anchor securely to the wall or floor, preventing leverage and distributing force effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If door barricades are mounted to the door jamb, then they can be easily installed, but they are inherently weak and can be blown off by focused force
Solution Approach 1:
The patent introduces a wall-mounted intermediate structure that serves as a mediator between the door and the building structure. The barricade system includes a mountable component that attaches to the wall rather than directly to the door jamb, creating a more stable intermediary support point that resists focused force better than direct door jamb mounting.
Solution Approach 2:
The invention transitions from a one-dimensional door jamb mounting approach to a two-dimensional wall surface mounting approach. By utilizing the wall's larger surface area and structural depth, the system achieves better force distribution and resistance to blow-off forces that cannot be accomplished with narrow door jamb mounting.
2Strength
If furniture is moved into place to create a barricade, then a sturdy barricade can be formed, but it requires moving heavy objects during emergencies which is dangerous and inefficient
Solution Approach 1:
The barricade system is pre-assembled and pre-positioned on the wall in an inactive state, performing the necessary structural preparation before the emergency occurs. This eliminates the need for heavy furniture to be moved during the emergency, as the barricade structure is already in place and can be quickly activated by simply moving the door-blocking component into position.
Solution Approach 2:
The barricade system is divided into separate functional segments: a wall-mounted support structure, a door-blocking component, and connection elements. This segmentation allows the support structure to remain stationary and pre-installed while only the door-blocking component needs to be moved into position during an emergency, significantly reducing the effort required for deployment.
3Reliability
If a barricade mounts to the wall rather than the door jamb, then strength against focused force is improved, but the device complexity increases
Solution Approach 1:
The wall-mounted component is designed to serve multiple functions: it provides structural support, acts as an anchor point for the door-blocking component, and can be installed on various wall locations. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity despite the more robust wall-mounting approach.
Data Source
AI summary
A right-angled triangle barricade for a door it is not directly connected to. The right-angle barricade is pivotably mounted to a supporting surface, such as a wall or ceiling, adjacent to the door to be barricaded. The right-angle barricade is pivotably movable from an inactive orientation, where its profile is flush against the supporting surface and not in the swing path of the door, to an active orientation where its profile is normal to the door and forces imparted on the door are transferred to be normal against the supporting surface.