Double Door Bottom Restraint for Shipping Stability
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Solution Overview
Problem
Double door assemblies face instability during shipping and installation due to the lack of a stabilizing mechanism, leading to potential damage from door separation or swinging, and current solutions require significant manual labor and material waste.
Innovation Solution
A double door restraining device made from plastic or other materials, featuring base portions, sidewall portions, and a separator, which stabilizes the doors in all directions and prevents swinging, allowing for secure shipping and installation without the need for extensive manual labor or material adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wood runner is used to hold the doors stable, then the doors are restrained from separating or swinging open, but the installation becomes extremely time consuming and requires significant manual labor
Solution Approach 1:
The restraining device is divided into separate functional components: base portions that contact the door bottoms, sidewall portions that prevent swinging, and a separator that maintains door spacing. This segmentation allows each component to perform its specific function efficiently, reducing overall installation complexity and time compared to a monolithic wood runner approach
Solution Approach 2:
The device acts as an intermediary component between the door assembly and the supporting structure. The base portions rest on the door bottoms while the sidewall portions engage with the door edges, providing stable restraint without requiring direct attachment to the building structure, thereby simplifying installation
2Reliability
If a wood runner is used to hold the doors stable, then the doors are restrained from separating or swinging open, but numerous staples and cutting of scrap material are required
Solution Approach 1:
The base portions, sidewall portions, and separator are combined into a single integrated restraining device that can be installed as one unit. This merging eliminates the need for multiple separate components, reducing the number of fasteners (staples) required and eliminating the need to cut scrap material, thereby significantly improving installation simplicity
Solution Approach 2:
The restraining device is designed to accommodate various door sizes and types through its modular base portions and adjustable sidewall portions. This universality allows the same device design to be applied to different door configurations without requiring custom fabrication or extensive material cutting, improving ease of manufacture
3Stability of the object's composition
If miscellaneous wood strips are used to build up space, then the doors do not sag, but the process requires cutting of scrap or purchased material
Solution Approach 1:
The restraining device uses inexpensive plastic or composite materials that can be easily replaced if needed. The base portions and sidewall portions are designed to be lightweight and affordable, making material waste acceptable given the significant reduction in installation time and labor costs, thereby improving overall cost-effectiveness
Data Source
AI summary
A double door assembly bottom restraining device and method provide stability to the double door assembly during manufacturing and shipping. The double door assembly bottom restraining device may be installed on the bottom of a double door assembly.