Gravity-Actuated Louvered Roller Shutter Slats
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Solution Overview
Problem
Conventional roller shutters fail to provide adequate aeration while maintaining protection from external light and intrusions, as they do not allow sufficient airflow when in the lowered position.
Innovation Solution
A swinging slatted roller shutter design where each slat is shaped with a movable wing that rotates due to gravity, eliminating the need for external driving mechanisms, and features a dovetail coupling or undercut system for assembly, ensuring hermetic sealing and easy assembly with tubular recesses and plugs for safety and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional roller shutters are used to protect from external light and intrusions, then protection function is improved, but aeration function deteriorates as they do not allow sufficient airflow when lowered
Solution Approach 1:
The patent applies the dynamics principle by making the slats rotatable around a horizontal axis. Each slat can swing between a horizontal position (providing protection) and a vertical position (providing aeration), allowing the shutter to dynamically adapt its configuration based on functional requirements. The slats are designed with a rotation mechanism that enables them to change orientation while remaining connected to the roller structure.
2Productivity
If slats are made rotatable to enable aeration, then aeration function is improved, but device complexity increases due to additional rotation mechanisms
Solution Approach 1:
The patent merges the rotation function directly into the slat structure itself rather than adding separate external driving mechanisms. The slats are designed with integrated rotation capabilities where the rotation axis is incorporated into the slat design, eliminating the need for additional motors, gears, or control systems for each slat. This integration reduces overall device complexity while maintaining the aeration function.
Solution Approach 2:
The slats are designed to rotate automatically or semi-automatically based on their own structural properties and environmental interactions, rather than requiring external actuation for each individual slat. The rotation mechanism is built into the slat assembly, allowing the slats to self-adjust their orientation to achieve both protection and aeration functions without complex external control systems.
3Productivity
If slats are designed with rotation capability for aeration, then aeration function is improved, but manufacturing complexity increases
Solution Approach 1:
The patent segments the roller shutter into multiple independent slats, each with its own rotation capability. This segmentation allows each slat to be manufactured as a separate, standardized component with integrated rotation features. The modular design enables mass production of identical slat units that can be easily assembled into the complete shutter assembly, simplifying the overall manufacturing process despite the added rotation functionality.
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 solution allows for simultaneous protection and aeration of rooms by utilizing gravity to rotate the slats, providing a hermetic seal and efficient airflow without additional mechanisms, and can be adapted for both manual and motorized operation.
Implementation Method 1
swinging the same slats without using any external driving mechanisms but only thanks to the gravity force
Data Source
Figure 1a~2
Figure 3
Figure 4~5
AI summary
Roller shutter comprising a plurality of slats 30, 30a in order to provide a curtain sliding in a couple of sliding guides, characterized in that said slats 30, 30a comprises a fixed frame 40, 40a and at least a movable swinging wing 1. In other words, such roller shutter does not contains any- driving mechanisms for rotating the swinging wings, such rotation being only provided by the gravity force. The winding up of the curtain around the roller in the rising and lowering steps can be either manual and motorized. Such roller shutter allows the double function of aerating the rooms and protecting them from light, water and dust infiltrations. It can be realized in any material, even differently combined without altering the functions of the invention.