Double Door Retainer Structure for Stable Door Transport
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Solution Overview
Problem
Transporting double doors with exposed bottom edges and hinges poses challenges, including potential damage and instability during shipment, as they can swing freely and collide with objects or people, making transportation difficult and increasing the risk of damage.
Innovation Solution
A double door retainer with a longitudinally extending spacer frame, guide rails, and positioning tab that secures to the bottom edge of the doors, preventing swinging and covering the exposed edges, featuring fastener sleeves for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If double doors are transported with exposed bottom edges and hinges, then the doors can be easily installed into the frame, but the doors can swing freely during transportation causing damage and safety hazards
Solution Approach 1:
The retainer device is pre-assembled with the door assembly before transportation, securing the doors in a closed position and preventing swinging movements. This preliminary securing action maintains stability during transport while allowing quick removal at the installation site.
Solution Approach 2:
The retainer device acts as an intermediary component between the door assembly and the transportation environment. It provides a mechanical constraint system that prevents unwanted door movement without interfering with the final installation process, as the retainer can be easily removed once the doors are secured in the frame.
2Ease of operation
If double doors are transported with exposed bottom edges, then the doors can be easily handled, but the bottom edges are vulnerable to scraping and damage
Solution Approach 1:
The retainer device incorporates a bottom panel that covers and protects the exposed bottom edges of the double doors during transportation. This protective barrier prevents scraping and damage from contact with other surfaces while maintaining ease of handling through the integrated design.
3Reliability
If a retainer device is added to secure double doors during transport, then the doors are protected from damage and swinging, but the device complexity increases
Solution Approach 1:
The retainer device is segmented into distinct functional components including side rails, a bottom panel, and fastening mechanisms. This segmentation allows for simplified manufacturing, easy assembly onto the door assembly, and straightforward removal after transportation, reducing overall system complexity while maintaining protective functionality.
Data Source
AI summary
Implementations are directed towards a double door retainer for restraining a set of double doors. The double door retainer can be attached to a set of double doors to prevent them from swinging about their hinges as they are transported from one location to another. The double door retainer can include a spacer frame having two opposing end walls and front, rear, and bottom walls that extend longitudinally from one end wall to the other. The double door retainer can include one or more guide rails and a positioning tab that align the double doors to the spacer frame. The double door retainer can include one or more fasteners sleeves and one or more apertures in the bottom wall that are aligned with the fastener sleeves so a user can insert a fastener through the apertures into the fasteners sleeves and attach the double door retainer to the double doors.