Invention Grant
US5213640A Rubber article-reinforcing 2+8 steel cords and pneumatic tires using
such steel cords
失效
使用这种钢丝绳的橡胶制品加强2 + 8钢丝绳和充气轮胎
- Patent Title: Rubber article-reinforcing 2+8 steel cords and pneumatic tires using such steel cords
- Patent Title (中): 使用这种钢丝绳的橡胶制品加强2 + 8钢丝绳和充气轮胎
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Application No.: US632607Application Date: 1990-12-27
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Publication No.: US5213640APublication Date: 1993-05-25
- Inventor: Kiyoshi Ikehara
- Applicant: Kiyoshi Ikehara
- Applicant Address: JPX Tokyo
- Assignee: Bridgestone Corporation
- Current Assignee: Bridgestone Corporation
- Current Assignee Address: JPX Tokyo
- Priority: JPX63-307690 19881207
- Main IPC: B60C9/00
- IPC: B60C9/00 ; D07B1/06
Abstract:
A steel cord comprising a core and a sheath arranged around the core. The core consists of two steel filaments, and the sheath consists of eight steel filaments. The diameter of each of the filaments is in a range from 0.30 to 0.42 mm, and a difference D.sub.c -D.sub.s between the diameter D.sub.c of the filaments of the core and that D.sub.s of the sheath is not less than 0.04 mm. The twisted direction of the core is the same as that of the sheath, and a ratio P.sub.s /P.sub.c between a pitch P.sub.s of the sheath and that of P.sub.c of the core is in a range from 1.4 to 3.0.
Public/Granted literature
- US4549504A Electronic controller for regulating temperature within an internal combustion engine system Public/Granted day:1985-10-29
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