Radius Fixation Plate Unit

JP7775829B2Active Publication Date: 2025-11-26NIPRO CORP
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Patent Information

Application Number
JP2022544571
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-08-24
Filing Date
2021-08-23
Publication Date
2025-11-26
Estimated Expiration
2041-08-23

AI Technical Summary

Technical Problem

Delamination and cracking occur at the boundaries between stacked sheets of resin radius fixation plates due to the alignment of fixation screw pitches with the sheet thickness, compromising the structural integrity.

Method used

The pitch of the fixation screws is set to a dimension that is different from an integer multiple of the thickness of the sheet, dispersing the intersections and preventing stress concentration, thereby inhibiting delamination and cracks.

Benefits of technology

This configuration effectively suppresses delamination and cracks in the resin fixation plate, ensuring secure fixation without compromising the structural integrity.

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Smart Images

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Patent Text Reader

Abstract

Provided is a radius fixation plate unit that is capable of effectively suppressing the occurrence of cracks due to interlayer peeling at laminated sheet boundaries, and that fixes a radius fixation plate (2) to a radius (3) using a fastening screw (4). The radius fixation plate comprises a screw insertion hole (2d) in which a resin sheet (2k) having a thickness (N) consists of a plurality of layers, and through which a fastening screw is screwed. The pitch (P) of the fastening screw is of a dimension that differs from the integer multiple of the sheet thickness (N).
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Citation Information

Patent Citations

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