Fitting

The fitting system dynamically adjusts door openings based on object width using sensors and control devices, addressing air leakage and privacy issues in conventional systems, enhancing efficiency and security.

JP2025112888APending Publication Date: 2025-08-01LIXIL CORP
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Patent Information

Application Number
JP2024007411
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-22
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

Conventional door control systems that fix the door in a fully open state lead to air leakage and privacy issues, as they do not adjust the opening width based on the object passing through, affecting heating and cooling efficiency and visibility.

Method used

A fitting system that includes a door body, an automatic opening and closing device, a control device, and a width detection device, which adjusts the door opening width based on the detected width of the approaching object, using a 3D camera or other sensors to ensure minimal opening for efficient air retention and privacy.

Benefits of technology

The system effectively minimizes air leakage and improves indoor heating and cooling efficiency while enhancing privacy by adjusting the door opening to the minimum required width, with optional security features through authentication and locking mechanisms.

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  • Figure 2025112888000001_ABST
    Figure 2025112888000001_ABST
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Abstract

To provide a fitting capable of automatically opening and closing a door body with a minimum necessary opening width.SOLUTION: A fitting includes a door body that is mounted in an opening in an open / close manner, an automatic opening / closing device that opens and closes the door body, a control device that controls driving of the automatic opening / closing device, and a width detection device that detects a width of an object approaching the opening, in which the control device controls the driving of the automatic opening / closing device so that an opening width of the door body when the opening is opened corresponds to the width of the object detected by the width detection device.SELECTED DRAWING: Figure 4
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Citation Information

Patent Citations

  • Door opening and closing control system

    JP2021130919A