Frame structure for underfloor inspection hatches and buildings equipped with them
The frame structure for underfloor inspection hatches addresses airtightness issues by allowing height adjustment and sealing gaps with a support system, enhancing airtightness and construction efficiency.
JP7875074B2Active Publication Date: 2026-06-17ASAHI KASEI HOMES CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- ASAHI KASEI HOMES CORP
- Filing Date
- 2022-09-01
- Publication Date
- 2026-06-17
AI Technical Summary
Technical Problem
Conventional underfloor inspection hatches face challenges in ensuring airtightness between the floorboard and frame material, and the height of the frame support member cannot be adjusted for airtight construction.
Method used
A frame structure for underfloor inspection hatches that allows for height adjustment below the upper surface of the floorboard, incorporating a support system with a partition material, filler, and airtight tape to seal gaps, using materials like mortar or polyurethane foam to enhance airtightness.
Benefits of technology
Enables adjustable height adjustment of the frame structure, improving airtightness and facilitating easier on-site construction by ensuring flush surfaces for enhanced sealing.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
To provide a frame structure of an underfloor inspection port and a building provided with the same capable of adjusting the hight below the top surface of the floorboard base.SOLUTION: A frame structure of an underfloor inspection port 100 includes a lid portion 9 of an inspection port 40, a lower structure 1, a floorboard base 2 supported by the lower structure 1, an opening portion 3 formed in the floorboard base 2, an outer frame material 4 supported by the lower structure 1 within the opening portion 3, a support 5 for supporting the outer frame material 4 on the lower structure 1, a partition material 6 disposed between the outer frame material 4 and the inner peripheral surface of the opening portion 3, and a filler 22 that fills the space between the partition material 6 and the inner peripheral surface of the opening portion 11. The lid portion 9 is placed on the top of the outer frame material 4. The support 5 has a base portion 51 supported on the top of the lower structure 1, and a support portion 52 that supports the outer frame material 4. The partition material 6 is disposed adjacent to the outer frame material 4.SELECTED DRAWING: Figure 1
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