Motorized curtain driving device
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Solution Overview
Problem
Conventional motorized curtain devices face issues such as obstruction during travel, difficulty with tight bends and curves, incompatibility with various rod diameters, and complex installation processes, leading to inaccuracies in automated control.
Innovation Solution
A motorized curtain device with a driven wheel in frictional engagement, a suspension assembly including a support member and linkage, and a modular design that accommodates various rod installations, featuring a controller with an encoder and sensors for precise positioning and compensation for physical effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional suspended motorized curtain device is used, then the curtain can be motorized to open and close, but the device becomes obstructed during travel along the rod or rail and gets stuck on rod joints or grommet-type curtains
Solution Approach 1:
The patent employs a dynamic suspension assembly with movable support members that can adjust their position and orientation during travel. The support members are designed to flex and adapt to rod joints and curves, allowing the device to navigate obstacles smoothly without becoming obstructed.
Solution Approach 2:
The device is divided into modular components including a motor housing, suspension assembly with multiple support members, and a driven wheel. This segmentation allows each component to be optimized independently, with support members specifically designed to handle rod joints and curves while the motor housing remains compact.
2Adaptability or versatility
If a conventional suspended motorized curtain device is used, then the curtain can be motorized, but the device has difficulty handling tight bends and curves on a rail
Solution Approach 1:
The suspension assembly features dynamically adjustable support members that can change their configuration in response to rail curvature. The movable support members flex and reposition themselves to follow tight bends and curves, enabling the device to navigate complex rail geometries effectively.
Solution Approach 2:
The device utilizes spring-loaded support members that can change their mechanical parameters (position, angle, contact force) in response to rail geometry. The springs allow the support members to adapt their configuration dynamically, providing smooth travel along curved rails with varying radii.
3Adaptability or versatility
If a conventional suspended motorized curtain device is used, then the curtain can be motorized, but the device encounters installation difficulties with large-diameter or small-diameter rods
Solution Approach 1:
The suspension assembly is designed as a universal system that can accommodate various rod diameters through adjustable support members. The same device configuration can be installed on different rod sizes by adjusting the support member positions, eliminating the need for multiple specialized versions.
Solution Approach 2:
The support members are designed to be adjustable and adaptable to different rod diameters. The dynamic configuration allows the same device to be installed on both large-diameter and small-diameter rods without requiring different hardware, simplifying the installation process.
4Measurement precision
If a conventional suspended motorized curtain device is used, then the curtain can be motorized, but the device experiences inaccuracies in automated control due to physical effects during continuing operation
Solution Approach 1:
The device incorporates feedback mechanisms that continuously monitor the position and status of the curtain during operation. This feedback allows the control system to compensate for physical effects such as material fatigue and creep in the rod or rail, maintaining accurate automated control over time by adjusting for drift and positional changes.
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
Ensures smooth travel, rapid and simplified installation, and accurate automated control, accommodating different rod sizes and types, while maintaining consistent pressure and positional accuracy.
Implementation Method 1
a driven wheel coupled to a motor within a housing and protruding from the housing in frictional engagement with the rod or rail. The driven wheel is rotated by the motor to advance the device along the rod or rail
Implementation Method 2
The support member is in sliding or rolling contact with the rod or rail
Implementation Method 3
In various embodiments, the support member is a roller member in rolling contact with the rod or rail
Implementation Method 4
a linkage extending along a suspension axis and connecting the support member to the housing to suspend the housing from the support member
Data Source
AI summary
A system for opening and closing a curtain on a rod or rail, includes a driven wheel coupled to a motor within a housing and protruding from the housing in frictional engagement with the rod or rail and a suspension system including a plurality of support members, each of the plurality of support members configured for sliding or rolling contact with the rod or rail and a linkage extending along a suspension axis and connecting a support member of the plurality of support members to the housing to suspend the housing from the support member. During installation, the system is configured for the user to select the support member from the plurality of support members and to couple the support member to the housing, and the driven wheel is rotated by the motor to advance the housing along the rod or rail with the housing suspended from the support member.