Door opening / closing device
The compact door opening and closing device addresses space and aesthetic challenges through a housing, actuator, and arm mechanism, ensuring efficient operation and reduced user effort while maintaining a slim profile.
WO2026141641A1PCT designated stage Publication Date: 2026-07-02MINEBEAMITSUMI INC
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- MINEBEAMITSUMI INC
- Filing Date
- 2025-12-26
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Existing door opening and closing devices face challenges in miniaturization due to space constraints and aesthetic considerations, such as securing installation space and maintaining a harmonious appearance with the door and interior design.
Method used
A door opening and closing device with a compact configuration, featuring a housing, an actuator, and an arm that protrudes or retracts within the housing to operate the door, utilizing a gear train and clutch mechanism to minimize device dimensions while ensuring reliable operation.
Benefits of technology
The device achieves miniaturization, allowing for easy installation in spaces with limited room, reduces user effort during manual operation, and maintains a sleek aesthetic by minimizing the device's footprint.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure JP2025045862_02072026_PF_FP_ABST
Abstract
[Problem] To make it possible to miniaturize device structure. [Solution] A door opening / closing device (1) comprising: a housing (10); an actuator (20) that is housed in the housing (10); and an arm (30) that is housed in the housing (10) and driven by the actuator (20). In the door opening / closing device (1), the arm (30) protrudes from the housing (10) while bending, and thereby operates a door (500) in the opening direction. In addition, in the door opening / closing device (1), the arm (30) is housed in the housing (10) while extending in a straight line, and thereby operates the door (500) in the closing direction.
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