Pull-Away Master Car for Manually Adjustable Motorized Drapery
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Solution Overview
Problem
Existing motorized drapery systems are limited in their ability to accommodate split-draw and ripple-fold draperies, as they require multiple tracks or large master cars, preventing flexible manual adjustment and compatibility with various drapery types.
Innovation Solution
A motorized drapery system with a master car featuring a driven and non-driven portion, where the non-driven portion can be decoupled from the driven portion, allowing manual movement of the drapery fabric along a single track, utilizing a spring mechanism for coupling and decoupling, and vertically and horizontally oriented wheels to prevent binding during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the master car is fixedly connected to the drive belt, then the drapery system can be operated automatically, but the user cannot manually adjust the drapery fabric position
Solution Approach 1:
The master car is divided into two separate portions: a driven portion that engages with the drive belt for automated operation, and a non-driven portion that can be manually pulled to adjust drapery position. This segmentation allows both automatic and manual operation modes without requiring complex additional mechanisms.
Solution Approach 2:
The connection between the driven and non-driven portions is made dynamic rather than fixed. A spring mechanism with a snap-receiving structure allows the portions to be coupled during automated operation and decoupled during manual adjustment, enabling the system to adapt its connectivity based on operational needs.
2Ease of operation
If prior art systems allow manual adjustment by decoupling the drapery fabric, then user can manually move the fabric, but multiple tracks or large master cars are required
Solution Approach 1:
By separating the master car into driven and non-driven portions, the system enables manual adjustment without requiring multiple tracks. The non-driven portion can be pulled away from the driven portion along the same single track, allowing manual repositioning while maintaining compatibility with various drapery types including split-draw and ripple-fold.
Solution Approach 2:
The single-track design with decouplable master car portions provides universal compatibility with multiple drapery types (standard, split-draw, ripple-fold) without requiring different track configurations, making the system versatile across various application scenarios.
3Adaptability or versatility
If a single track is used with a low-profile master car, then the system is compatible with various drapery types, but the master car must be decoupled for manual movement
Solution Approach 1:
The spring mechanism with snap-receiving structure provides automatic coupling and decoupling functionality. When the non-driven portion is pulled, the spring automatically disengages the snap, allowing decoupling without complex controls. The spring also automatically recouples the portions when they return to their normal positions, reducing the need for complex control systems.
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
Enables flexible manual adjustment and compatibility with various drapery types, including split-draw and ripple-fold, by allowing the drapery fabric to be manually moved along a single track while maintaining a low-profile design for easy installation and use.
Implementation Method 1
The master car comprises a spring having a snap adapted to be received in a snap-receiving structure, such that the driven portion is coupled to the non-driven portion
Implementation Method 2
The driven portion and the non-driven portion comprise a plurality of vertically-oriented wheels adapted to roll through the drapery car channel
Implementation Method 3
The vertically-oriented wheels have diameters less than the distance between the top to the bottom of the drapery car channel and the axes of rotation of the vertically-oriented wheels are offset from each other in a vertical direction, such that the wheels are prevented from binding
Data Source
AI summary
A drapery system for moving a suspended drapery fabric allows the drapery fabric to be decoupled from a drive system, such that the drapery fabric may be manually moved. The drapery system comprises a master car comprising a driven portion and a non-driven portion. The driven portion is coupled to a drive belt of the drive system, while the non-driven portion is coupled to the drapery fabric. The master car comprises a spring having a snap adapted to be received in a snap-receiving structure, such that the driven portion is coupled to the non-driven portion. The non-driven portion is operable to move in response to movement of the drive belt to move the drapery fabric when the non-driven portion is coupled to the driven portion. The non-driven portion is operable to be decoupled from the driven portion, such that the position of the drapery fabric may be manually adjusted.