Title:
【発明の名称】切削器具の切刃に終る両側面にファセットを形成する方法および装置
Document Type and Number:
Japanese Patent JP2856254
Kind Code:
B2
Abstract:
Novel methods and apparatus for providing a facet (52, 54, 56) on opposed surfaces (50) of a cutting instrument such as a razor blade (10) or the like. Essentially, the methods and apparatus are designed to initially abrade opposed surface portions of the instrument concurrently with a relatively high degree of coarseness at a relatively low included angle and thereafter concurrently abrading the opposed surface portions with progressively decreasing degrees of coarseness at progressively increasing included angles. The facets provided by the methods and apparatus on the opposed surfaces of the instrument have a surface in which the included angle decreases as the distance from the edge of the instrument increases.
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Inventors:
ROBAATO MANROO ATSUTOOOTAA
Application Number:
JP14791988A
Publication Date:
February 10, 1999
Filing Date:
June 15, 1988
Export Citation:
Assignee:
JIRETSUTO CO ZA
International Classes:
B24B3/36; B24B3/48; B26B21/56; (IPC1-7): B24B3/36; B26B21/56
Domestic Patent References:
| JP59502135A |
Other References:
【文献】米国特許3461616(US,A)
Attorney, Agent or Firm:
Kazuo Sato (2 outside)