Integrated Roller Device for Window Shading and Insect Protection
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Solution Overview
Problem
Conventional window treatments, such as blinds and screens, require separate installations to either block sunlight or prevent insects, leading to inconvenience and inefficiency.
Innovation Solution
A roller device for windows that integrates a blind assembly to shade sunlight and a screen assembly to prevent insects, allowing both functions to be controlled by a single mechanism with interconnected strings and rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a blind is mounted on the window to shade sunlight, then sunlight shading is improved, but insect protection is lost
Solution Approach 1:
The patent combines a blind assembly and a screen assembly into a single integrated roller device. The blind assembly with shading fabric and the screen assembly with insect mesh are mounted together on the same window frame, allowing both sunlight shading and insect protection to function simultaneously through a single coordinated system rather than separate installations.
Solution Approach 2:
The integrated roller device performs multiple functions: the blind assembly provides sunlight shading, the screen assembly provides insect protection, and both can be operated together or independently through shared control mechanisms (strings and rollers). This multi-functional design eliminates the need for separate blind and screen installations.
2Object-affected harmful factors
If a screen is mounted on the window to prevent insects, then insect protection is improved, but sunlight shading is lost
Solution Approach 1:
The patent combines a blind assembly and a screen assembly into a single integrated roller device. The blind assembly with shading fabric and the screen assembly with insect mesh are mounted together on the same window frame, allowing both sunlight shading and insect protection to function simultaneously through a single coordinated system rather than separate installations.
Solution Approach 2:
The integrated roller device performs multiple functions: the blind assembly provides sunlight shading, the screen assembly provides insect protection, and both can be operated together or independently through shared control mechanisms (strings and rollers). This multi-functional design eliminates the need for separate blind and screen installations.
3Reliability
If separate blind and screen installations are used, then functional effectiveness is improved, but device complexity increases
Solution Approach 1:
The patent combines a blind assembly and a screen assembly into a single integrated roller device. The blind assembly with shading fabric and the screen assembly with insect mesh are mounted together on the same window frame, allowing both sunlight shading and insect protection to function simultaneously through a single coordinated system rather than separate installations.
Solution Approach 2:
The integrated roller device performs multiple functions: the blind assembly provides sunlight shading, the screen assembly provides insect protection, and both can be operated together or independently through shared control mechanisms (strings and rollers). This multi-functional design eliminates the need for separate blind and screen installations.
Data Source
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AI summary
A roller device for a window is provided. The roller device has a structure (10) and a roller assembly (20). The structure (10) has four strings. The roller assembly (20) has a shaft (21), a movable unit (22), and a roller (23). The shaft (21) is mounted on the structure (10). The movable unit (22) is movably mounted on the structure (10). Two of the strings (14) pass through the movable unit (22). The roller (23) is rolled on the shaft (21) and one edge of the roller (23) is mounted on the movable unit (22). Because the strings (14) are tightened, the frictions between two of the strings (14) clamp the movable unit (22) and the movable unit (22) cannot move without external force. One of the rollers (23) is made of blackout fabric and the other roller (33) is an insect screen.