Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Katsuhiro Nagasawa0
Takayuki Hashimoto0
Shintarou Takahashi0
Date of Patent
March 24, 2009
0Patent Application Number
112526160
Date Filed
October 19, 2005
0Patent Primary Examiner
Patent abstract
A tool positioning device and a machining element have simple structures which can reduce running cost. In addition to a hole that engages with a shank of an end mill, a channel is provided so that it penetrates through the device such that one end thereof communicates with an upper face of the device and the other end communicates with a lower end of the device. In this case, it is more effective to provide a concave portion that is opened to the upper face and communicates with the hole. The same effect may be obtained by making a cylindrical hole, for example, instead of the channel.
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