window opener
The use of a roller chain with a flexible pipe in window opening and closing devices addresses durability and aesthetic issues, reducing part count and simplifying installation for improved efficiency.
JP7766236B1Active Publication Date: 2025-11-10大石守
Patent Information
- Application Number
- JP2025036872
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-11-10
- Estimated Expiration
- 2045-02-18
AI Technical Summary
Technical Problem
Existing window opening and closing devices face issues with wire rope fatigue due to constant tension, require multiple pulleys, are aesthetically unpleasing for chain-based systems, and have complex installations.
Method used
A window opening and closing device using a roller chain with a flexible pipe to reduce part count, improve durability, and simplify installation, featuring a sprocket housing and flexible pipe for roller chain guidance and storage.
Benefits of technology
Enhances durability, reduces costs, improves design aesthetics, and simplifies installation by using a roller chain with a flexible pipe for window operation.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007766236000001_ABST
Abstract
The window drive devices for opening and closing high windows typically operate manually via a wire rope or cable routed through a handle box located away from the window. However, opening and closing the shoji screen requires time and effort, and installation is difficult. Furthermore, wire types are not very durable, while cable-based chain types are more durable but are expensive to manufacture and require a large case to house the chain, making design an issue. [Solution] The durability of the window opening and closing device is dramatically improved by using and winding up a roller chain to open and close a sliding screen, and the wound up roller chain is sent into a flexible pipe placed inside the ceiling, thereby reducing the number of parts, making the parts smaller, and reducing the cost, and providing a window opening and closing device with excellent design.
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Citation Information
Patent Citations
JP1982127775U
Opening / Closing remote operation arranged device for bay window for kitchen
JP2000213232A
Window opening / closing operation device
JP2012041780A