Title:
【発明の名称】ナイフブレード
Document Type and Number:
Japanese Patent JP3469235
Kind Code:
B2
Abstract:
PCT No. PCT/GB92/00756 Sec. 371 Date Dec. 8, 1993 Sec. 102(e) Date Dec. 8, 1993 PCT Filed Apr. 24, 1992 PCT Pub. No. WO92/19424 PCT Pub. Date Nov. 12, 1992.The invention relates to knife blades and in particular to a method of their production, and has for its object the provision of a knife blade with a cutting edge formed by a surface harder than the material of the body of the blade. This objective is met by a method comprising grinding a first face (2) of a V-shaped cutting edge to one side of the blank (1) to locate the lower edge of the first side face (2) at the approximate mid-point across the thickness of the blank (1), providing on the partly-ground blank (1) a hard surface (3) around the periphery of the blank (1) at least over the height of the first ground face (2) and grinding a second face (4) of the V-shaped cutting edge to the opposite side of the blank (1), to locate the V-shaped cutting edge at the approximate mid-point across the thickness of the blank (1).
Inventors:
Williams, David Mark
Application Number:
JP50806592A
Publication Date:
November 25, 2003
Filing Date:
April 24, 1992
Export Citation:
Assignee:
Machusons Limited
International Classes:
B26B9/00; C21D9/18; (IPC1-7): B26B9/00
Domestic Patent References:
| JP3202228A | ||||
| JP62181836A | ||||
| JP4218659A |
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)