Bead Chain Track System for Architectural Covering Safety
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Solution Overview
Problem
Existing architectural-structure covering systems face challenges in safely restraining operating elements like bead chains or cords while allowing easy user access and manipulation, as current solutions often make manipulation difficult and burdensome.
Innovation Solution
A track system is integrated into the architectural-structure covering that couples with the operating element, specifically a bead chain, to restrain it from being pulled away, using dog-bone shaped beads and channels to limit loop formation, ensuring safety and ease of access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operating element is selectively encased or enclosed to address safety regulations, then safety is improved, but manipulation of the operating element becomes difficult and burdensome
Solution Approach 1:
The operating element is divided into multiple segments or beads that can be manipulated individually while remaining constrained within the track structure. This segmentation allows users to grasp and pull individual beads for operation while the overall structure remains enclosed for safety
Solution Approach 2:
A track system serves as an intermediary structure that guides and constrains the operating element. The track provides the enclosed path that ensures safety while allowing the operating element to be manipulated through controlled movement along the track
2Reliability
If the operating element is restrained to minimize loop formation, then safety is improved, but accessibility for user manipulation may be reduced
Solution Approach 1:
The operating element is constrained in the vertical dimension by the track structure to prevent loop formation and excessive movement, while remaining accessible in the horizontal dimension for user manipulation. This dimensional constraint allows safety through vertical restriction while maintaining operational accessibility
Data Source
AI summary
An architectural-structure covering including a covering moveable between extended and retracted positions, a rotatable member coupled to the covering, an operating system coupled to the rotatable member, an operating element manipulatable by a user for rotating the rotatable member, and a track coupled to the operating element to restrain the operating element from being moved away from the track. In some embodiments, the operating element is a bead chain including a plurality of beads and a plurality of dog-bone shaped beads including first and second beads wherein the first bead is positioned within, and forms part of, the bead chain and the second bead is positioned within a channel formed in the track.