Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tsutomu Tokuma0
Yukinaga Sasazawa0
Kazuhiko Matsumoto0
Date of Patent
July 3, 2007
0Patent Application Number
113870590
Date Filed
March 23, 2006
0Patent Primary Examiner
Patent abstract
To provide a composite lathe enabling downsizing of a machine main body and realizing an enlarged machining area. A cutting point “c” of a tool post 5 is positioned vertically under a straight line connecting axes “a” of a first spindle headstock 3 and a second spindle headstock 4, and an X-axis stroke of a cutting point of a third spindle 6 overlaps an X-axis stroke of the tool post 5 by a half or more of the X-axis stroke of the tool post 5.
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