← Back to Patent Explorer
JPH05459A Expired / Lapsed JP ⏱️ 0.0 years remaining

Structural member using fiber reinforced resin composite material

Assignee: Hitachi Ltd
•
Filing: 1991-01-25
•
Granted: —
•
Expires: 2011-01-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from Japanese (57)【要約】 【目的】本発明の目的は、FRPを主体とした梁や枠の 部材の板端部を強化して、部材を軽量化すると同時に強 度的にバランスのとれた梁や枠を提供することである。 【構成】FRPを構成する繊維を切ることがないよう に、部材の板端部に大きい半径の曲面を設けることや玉 縁状にすることのために板端部に芯材を設けている。該 芯材の外周にプリプレグを45°ずつ回転させて4方向 に幾重にも積層した梁又は枠を構成している。 (57) [Summary] [Object] An object of the present invention is to strengthen a plate end portion of a member of a beam or frame mainly composed of FRP so as to reduce the weight of the member and at the same time, a beam or frame having a balanced strength. Is to provide. [Structure] A core material is provided at the plate end portion in order to provide a curved surface with a large radius at the plate end portion of the member or to form a bead shape so as not to cut the fibers constituting the FRP. A beam or frame is formed by stacking multiple layers in four directions by rotating prepregs on the outer periphery of the core material by 45 °.

Inventors

  • 👤 Koichi Motonaga
  • 👤 光一 元永

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-05 22:20
CPC Classifications
Y; Y02; Y02T; Y02T30/00

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag