Building materials

The fitting design addresses manufacturing inefficiencies by using separate, differently sized components for the ventilation unit and door stile, ensuring efficient assembly and enhanced fire and water resistance.

JP7750758B2Active Publication Date: 2025-10-07YKK AP INC
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Patent Information

Application Number
JP2022013364
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-01-31
Publication Date
2025-10-07
Estimated Expiration
2042-01-31

AI Technical Summary

Technical Problem

Conventional fittings with ventilation units require additional processing to create a step on the door stile to accommodate the ventilation unit's offset, reducing manufacturing efficiency.

Method used

The fitting design includes a ventilation unit with a horizontal frame protruding from the door body's horizontal stile, where the horizontal frame and stile are separate components with different lengths, forming a step without the need for additional processing, and are connected by hidden engagement mechanisms for improved rigidity and waterproofing.

Benefits of technology

This configuration enhances manufacturing efficiency by eliminating the need for post-processing steps and improves fire resistance and waterproofing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a fitting capable of improving manufacturing efficiency even with a configuration that has a ventilation unit.SOLUTION: The fitting has a door body and a ventilation unit attached to the door body. The ventilation unit has a ventilation opening frame with a horizontal frame, and a ventilation shoji supported by the ventilation opening frame. The door body has a horizontal stile and a vertical stile enclosing the ventilation opening frame. The horizontal frame is connected to the horizontal stile so as to protrude from the outdoor side facing surface of the horizontal frame to the outdoor side. Since the horizontal frame and the horizontal stile are configured so that the total length of the horizontal frame is shorter than the total length of the horizontal stile, a step is formed between the header edge faces. The vertical stile covers the header end face of the horizontal stile and the header end face of the horizontal frame while straddling the step.SELECTED DRAWING: Figure 4
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Citation Information

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