Invention Grant
- Patent Title: Coated cutting edge of a blade member
- Patent Title (中): 叶片构件的涂覆刀刃
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Application No.: US12449508Application Date: 2008-03-27
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Publication No.: US08621757B2Publication Date: 2014-01-07
- Inventor: Koichiro Akari , Hiroshi Ohtsubo
- Applicant: Koichiro Akari , Hiroshi Ohtsubo
- Applicant Address: JP Gifu-ken
- Assignee: Kai R&D Center Co., Ltd.
- Current Assignee: Kai R&D Center Co., Ltd.
- Current Assignee Address: JP Gifu-ken
- Agency: Posz Law Group, PLC
- Priority: JP2007-091252 20070330
- International Application: PCT/JP2008/055830 WO 20080327
- International Announcement: WO2008/123341 WO 20081016
- Main IPC: B26B21/54
- IPC: B26B21/54 ; B21K11/00 ; G11B5/64 ; B32B9/00 ; B32B19/00

Abstract:
In a cutting edge of a razor blade, a non-nitrided layer containing Ti, Al, and Cr formed on opposite surfaces of a base plate as a portion of a coating layer. A remaining layer containing Ti, Al, Cr, and N formed on opposite surfaces of the non-nitrided layer as a portion of a nitrided layer of the coating layer. A surface layer containing Ti, Al, Cr, and N formed on opposite surfaces of the remaining layer as a portion of the nitrided layer of the coating layer. A fluororesin layer formed on opposite surfaces of the surface layer with a bonding layer containing Cr and Al in between. The coating layer further improves the cutting edge, enhances cutting performance of the cutting edge, and maintains the enhanced cutting performance to improve the durability of the cutting edge.
Public/Granted literature
- US20100024222A1 BLADE MEMBER Public/Granted day:2010-02-04
Information query
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