Movable Partition Roller Assembly for Lateral Alignment Control
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Solution Overview
Problem
Movable partitions, such as foldable doors, face challenges in maintaining proper alignment and seal due to lateral displacement of their lower edges relative to upper edges during opening and closing, which can compromise their functionality as fire or security barriers and affect room subdivision and noise isolation.
Innovation Solution
A displacement control assembly featuring a bracket with a roller assembly and attachment brackets that maintain the panels in a plumb orientation by resisting lateral movement, ensuring proper alignment and engagement with adjacent structures, even on uneven surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a track is placed in the floor to constrain lateral movement of the door, then lateral displacement is controlled, but the floor track becomes unsightly, collects dust and debris, and may cause injury hazards
Solution Approach 1:
The guide function is extracted from the floor track and transferred to a vertical guide mechanism. The bracket assembly with guide surface is mounted on the wall or door post, removing the harmful floor track while maintaining lateral constraint functionality through vertical guidance of the door's lower edge.
Solution Approach 2:
A bracket assembly with guide surface acts as an intermediary between the door and the wall/door post. This intermediary component provides the necessary lateral constraint through its guide surface that engages with the door's lower edge, eliminating the need for direct floor track contact.
2Ease of operation
If the lower edge of the door is allowed to move laterally during operation, then ease of operation is improved, but proper alignment with the mating receptacle cannot be maintained
Solution Approach 1:
The bracket assembly is designed to accommodate dynamic movement during door operation while maintaining guidance. The hinged connection allows the bracket to pivot with the door during opening/closing, but the guide surface continuously constrains lateral displacement, enabling dynamic operation with static alignment precision.
Solution Approach 2:
The door system is segmented into independent functional components: the door panels for movement, the bracket assembly for guidance, and the guide surface for constraint. This segmentation allows each component to perform its specific function optimally while working together to achieve both operational flexibility and alignment precision.
3Reliability
If a floor track is used to guide the door, then lateral constraint is achieved, but the complexity of installation and maintenance increases due to floor integration requirements
Solution Approach 1:
The guide function is extracted from the floor structure and relocated to a wall-mounted or post-mounted bracket assembly. This extraction simplifies installation by eliminating floor cutting and integration work, and reduces maintenance complexity by making the guide mechanism accessible and independent of the floor structure.
Solution Approach 2:
Instead of mounting the guide mechanism on the floor (horizontal plane), the solution inverts the approach by mounting it on the wall or door post (vertical plane). This inversion changes the installation surface from floor to vertical structure, simplifying access and maintenance while achieving the same lateral constraint function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively prevents lateral displacement of the panels, ensuring proper alignment and seal, enhancing the operational efficiency and safety of movable partitions as fire or security barriers while maintaining versatility in room subdivision.
Implementation Method 1
A roller assembly including at least one roller element is coupled to the bracket... providing resistance to lateral movement of the lower edge of the panel
Data Source
AI summary
Apparatuses, methods and systems for directionally controlling a movable partition are provided. In one embodiment, an apparatus for controlling lateral displacement of a movable partition includes a bracket, a roller assembly, a first attachment bracket, and a second attachment bracket. The roller assembly is coupled to the bracket and includes a roller element. The first attachment bracket attaches to a first panel of the movable partition and is configured for hinged coupling to a first side of the bracket such that a first pivot line substantially coincides with a centerline of the first panel. The second attachment bracket attaches to a second panel of the movable partition and is configured hinged coupling to a second side of the bracket such that a second pivot line substantially coincides with a centerline of the second panel.