Guide Roller Seat Cord Tension Window Covering
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Solution Overview
Problem
Conventional window coverings with automatic winding mechanisms experience cord tilting and uneven tension due to external forces, leading to operational inefficiencies and aesthetic issues.
Innovation Solution
A guide roller seat with rotatably mounted rollers maintains cord tension, guides uneven forces, and prevents tangling by arranging guide rollers in a tangential direction to the automatic winding mechanism, ensuring smooth operation and horizontal alignment of the covering body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the cord is directly extended outward from the headrail without guide rollers, then the structure is simple, but the cord is easily pulled by external force causing uneven tension and tilting
Solution Approach 1:
Guide rollers are introduced as intermediary components between the cord and the headrail. These rollers mediate the interaction by providing a controlled path for the cord, distributing external forces evenly, and preventing direct pulling that would cause uneven tension and tilting.
Solution Approach 2:
The cord path is segmented into multiple sections guided by multiple guide rollers arranged at different positions. This segmentation allows each roller to handle specific portions of the external forces independently, ensuring uniform tension distribution across the entire cord system.
2Reliability
If guide rollers are added to maintain cord tension and prevent tilting, then cord tension uniformity is improved, but device complexity increases
Solution Approach 1:
The guide rollers are designed to perform multiple functions simultaneously: guiding the cord along the correct path, maintaining uniform tension, preventing tilting, and facilitating smooth operation. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.
3Ease of operation
If the cord is pulled directly without guidance, then operation is simple, but the covering body tilts and operation becomes inefficient
Solution Approach 1:
The guide rollers provide a curved, tangential path for the cord to follow, replacing direct linear pulling. This curved guidance path ensures smooth force distribution and prevents abrupt movements that would cause tilting, thereby maintaining operational simplicity while significantly improving efficiency.
4Ease of operation
If guide rollers are arranged in tangential direction to the automatic winding mechanism, then cord movement is smooth and tangling is prevented, but device complexity increases
Solution Approach 1:
The guide rollers are arranged in a dynamic configuration that follows the tangential direction of the automatic winding mechanism. This dynamic arrangement adapts to the winding motion, ensuring the cord always moves smoothly along the optimal path and preventing tangling, while the modular roller design keeps the overall complexity manageable.
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
The guide roller seat maintains consistent cord tension, prevents tilting, and facilitates smooth operation by guiding forces evenly, enhancing user experience and the appearance of the window covering.
Implementation Method 1
a plurality of guide rollers rotatably mounted in the seat body to guide movement of a cord
Implementation Method 2
the cord is kept at a normal state with a determined tension by a drawing action of the guide rollers
Implementation Method 3
the cord has a determined tension to counteract an unevenly external force and to guide the unevenly external force to a correct direction
Data Source
AI summary
A guide roller seat for a window covering includes a seat body, and a plurality of guide rollers rotatably mounted in the seat body to guide movement of a cord which is extended between an automatic winding mechanism and a covering body of the window covering. Thus, the cord is kept with a determined tension by the drawing action of the guide rollers, so that the cord is drawn by guidance of the guide rollers so as to fold or extend the covering body smoothly and evenly, thereby preventing the covering body from being tilted during the drawing action of the cord.