Staggered Door Roller Support Assembly for Sag-Resistant Sliding Closures
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Solution Overview
Problem
Existing support systems for folding or sliding doors face issues such as sagging due to weight, deformation of wheels, and high complexity leading to increased costs and wear and tear, particularly in top hung and bottom rolling configurations.
Innovation Solution
A support system comprising interchangeable upper and lower assemblies with pivotally connected roller assemblies and tracks that allow for linear movement and pivoting, featuring staggered roller placement and arcuate connection angles for enhanced stability and reduced part complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If top hung support system is used, then installation is simplified, but sagging occurs due to weight and deterioration of parts
Solution Approach 1:
The support system is divided into modular components: a support body with connection portions for the door, and separate roller assemblies that can be attached to the support body. This segmentation allows for easier installation while maintaining structural integrity and reducing sagging through proper load distribution.
Solution Approach 2:
The support body is designed with multiple connection portions that can accommodate different door configurations and mounting locations. The universal design allows the same support body to be used in various applications, simplifying installation across different scenarios while maintaining reliability through consistent structural performance.
2Ease of operation
If bottom rolling support system is used, then door movement is facilitated, but wheels are susceptible to deformation under load
Solution Approach 1:
The roller assemblies are designed to be detachably connected to the support body, allowing them to be replaced or adjusted based on load requirements. This dynamic configuration enables the system to maintain ease of door movement while accommodating varying load conditions without permanent deformation of the rolling elements.
Solution Approach 2:
The support system allows for changing parameters such as roller material, size, and configuration based on specific application requirements. By adjusting these parameters, the system can optimize both door movement facilitation and load bearing capacity to prevent wheel deformation under different operating conditions.
3Adaptability or versatility
If multiple different parts with various shapes and configurations are used, then functional requirements are met, but manufacturing complexity and costs increase
Solution Approach 1:
The support body is designed as a universal component with multiple connection portions that can accommodate different door types and mounting configurations. This single universal support body replaces the need for multiple specialized parts, reducing manufacturing complexity and costs while maintaining the ability to meet various functional requirements through different roller assembly configurations.
Solution Approach 2:
Multiple connection portions for different door configurations are integrated into a single support body structure. By merging these functions into one component rather than using separate parts for each configuration, the system reduces the total number of parts, simplifies manufacturing, and lowers costs while preserving adaptability to different functional requirements.
4Adaptability or versatility
If multiple different parts are used, then specific functional requirements are satisfied, but wear and tear increases
Solution Approach 1:
The universal support body with multiple connection portions reduces the variety of critical structural parts that are subject to wear and tear. While roller assemblies may still be configured differently, the main support structure remains consistent, improving wear resistance and reliability of the primary load-bearing components while still satisfying various functional requirements.
Data Source
AI summary
A support system for use with a door that closes off an opening and a door assembly with the support system. The support system comprises a first support assembly having a main body and a roller assembly connected thereto, the main body comprises a seat for establishing connection with a first position of said door and a connector formed with the seat for connecting with the roller assembly. The connector is displaced from the seat in at least one perspective such that the roller assembly connected thereto is staggered relative to the seat in that perspective.