Pivoting Door Guard Prevents Fixed Side Closing
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Solution Overview
Problem
Existing door guards fail to prevent the fixed-side opening of a door from closing, potentially trapping fingers or objects, and often require removal or complex integration with the door frame, making them inconvenient for installation and use.
Innovation Solution
A door guard device comprising a pivoting member, attachment member, and mounting system that allows the guard to swivel between positions, ensuring the fixed side opening remains open by contacting the door, preventing it from narrowing, and can be easily installed and remain in place when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a door guard device is designed to prevent the door from closing completely, then the door cannot trap fingers or appendages, but the fixed-side opening along the jamb still closes prior to the swinging-side opening, allowing fingers to be caught between the door jamb and the door
Solution Approach 1:
The door guard device employs a pivoting member that can rotate between a retracted position (allowing door closure) and an extended position (blocking the fixed-side opening). This dynamic mechanism allows the guard to adapt its position based on operational needs, preventing finger trapping while maintaining reliable protection when activated
Solution Approach 2:
The pivoting member acts as an intermediary element between the door and the door frame. When extended, it physically blocks the fixed-side opening, preventing the door jamb from closing against fingers. This intermediary component transfers the protective function from the door itself to a separate, dedicated mechanism
2Ease of operation
If prior art door guards are made integral with the door itself to remain installed when not in use, then the door guard can stay in place, but the device becomes complex and difficult to install or remove
Solution Approach 1:
The door guard device is segmented into distinct components: a mounting system attached to the door frame, a pivoting member with attachment member, and a bumper. This segmentation allows the device to be installed as a complete unit on the frame rather than integrating it into the door itself, simplifying both installation and removal while maintaining functionality
Solution Approach 2:
The protective function is extracted from the door structure itself and placed into a separate, removable door guard device mounted on the door frame. This extraction allows the guard to be easily installed and removed without modifying the door, reducing device complexity while maintaining the ability to remain installed when not in use
Data Source
AI summary
A system and method of preventing the fixed side opening of a door from closing along the door jamb of a door frame. A guard device is provided generally comprising a pivoting member, an attachment member, a mounting system and a bumper. The pivoting member has a first end and a second end. An attachment member and bumper attach to the pivoting member. Mounting system connects to the attachment member at a central void. The mounting system connects to a prior art door stop of a door frame such that the guard device can swivel between a first position and a second position. In a first position guard device is proximate door stop such that the door is capable of fully closing against door stop. In a second position guard device is capable of maintaining the fixed side opening of the prior art door assembly. Bumper swivels outward to contact the end of the door. After guard device is engaged in the second position fixed side opening is incapable of narrowing.