System for automatically rolling up and unrolling a rollable screen

The system addresses the challenge of automating rollable screens by using a magnetic field deforming structure and coil assembly for precise control and obstacle detection, achieving efficient and automated operation suitable for thin and flexible screens.

EP4530429A1Active Publication Date: 2025-04-02RENSON NV
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Patent Information

Application Number
EP2024201843
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-27
Filing Date
2024-09-23
Publication Date
2025-04-02
Estimated Expiration
2044-09-23

AI Technical Summary

Technical Problem

Existing systems for automatically rolling up and unrolling rollable screens, such as sun protection screens, face challenges in being suitable for thin and flexible screens, and in directly detecting obstacles or the fully rolled-up/unrolled position without additional sensors.

Method used

A system that incorporates a magnetic field deforming structure on the rollable screen, paired with a coil assembly that generates and detects a magnetic field, allowing for precise control of the rolling up and unrolling process using a controller.

Benefits of technology

The system enables efficient, precise, and automated control of rollable screens, including detection of the fully rolled-up/unrolled position and potential obstacles, without the need for additional sensors, making it suitable for thin and flexible screens.

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Abstract

A system for automatically rolling up and unrolling a rollable screen (2), comprising: the rollable screen (2), comprising a magnetic field deforming structure (3), a rotatable tube (4) for rolling up and unrolling the rollable screen (2), a motor (5) for rotating the tube (4), at least one coil assembly (7) for generating a magnetic field and for detecting the generated magnetic field, arranged adjacent to a path along which the magnetic field deforming structure (3) travels when the rollable screen (2) is being rolled up and unrolled such that the magnetic field detected by the coil assembly (7) is dependent on the rolled-up and unrolled position of the rollable screen (2), and a controller (6) suitable for controlling the motor (5) based on the magnetic field detected by the coil assembly (7).
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