Synchronized Venetian Blind Slat Control with Differential Extension Speeds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing external venetian blind systems struggle to synchronize the slat inclination adjustment across different venetian blinds in a room, particularly when some blinds are intended for doors and others for windows, leading to inefficient shading and manual adjustment difficulties.
Innovation Solution
The solution involves synchronizing the adjustment movements of the slat inclination across multiple venetian blinds while allowing different extension length adjustment speeds using adapted transmission ratios and gear systems, such as planetary gears, to ensure synchronous slat angle adjustment and increased speed for door blinds when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If synchronous adjustment of extension length is used for all venetian blinds, then all blinds adjust at the same speed, but door blinds cannot be adjusted quickly enough
Solution Approach 1:
The patent applies different transmission ratios to different venetian blind systems within the same room. Window blinds use a first transmission ratio for normal shading speed, while door blinds use a second, higher transmission ratio to achieve faster adjustment speed. This local differentiation resolves the contradiction by allowing each blind type to operate at its optimal speed while maintaining synchronous slat inclination adjustment through separate drive mechanisms.
2Speed
If different transmission ratios are used for door and window blinds, then door blinds can adjust quickly, but synchronous adjustment of slat inclination becomes difficult
Solution Approach 1:
The patent segments the control system into separate drive mechanisms for each venetian blind system. Each blind system has its own drive with independently optimized transmission ratio, allowing door blinds to use higher speed while window blinds use normal speed. The segmentation enables independent optimization of each subsystem while maintaining overall coordination through separate control.
3Speed
If complex mechanical systems are used to achieve different adjustment speeds, then speed requirements are met, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical synchronization systems with separate electronic drive mechanisms for each venetian blind. Instead of using mechanical linkages to synchronize all blinds, each blind has its own electronically controlled drive with programmable transmission ratios. This substitution of mechanical synchronization with electronic control simplifies the overall system while achieving the required different adjustment speeds.
Data Source
AI summary
A system consists of at least two external venetian blinds (16, 18) for shading building openings (12, 14). The external venetian blinds (16, 18) are adjustable in their extension length and the inclination of their slats by means of drives, with one drive provided for each external venetian blind (16, 18) to adjust its slat inclination and extension length. To avoid different settings of the external venetian blinds (16, 18), it is proposed that the adjustment movements of the slat inclination angles of all external venetian blinds (16, 18) be synchronized, while the adjustment movements of the extension lengths of these external venetian blinds occur at different speeds. The different adjustment speeds of the extension length, with synchronous adjustment of the slat inclination angles, are achieved by gear drives with adapted transmission ratios.