Cutting device
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United States of America Patent
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Sep 26, 2006
Grant Date -
Jul 27, 2006
app pub date -
Aug 6, 2003
filing date -
Aug 8, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cutting device includes a cutter rod, and a movable cutting tool of a length greater than the diameter of the cutter rod. The movable cutting tool is prevented from cracking and breaking.A movable cutting tool (7) has protruding parts (7b) protruding radially outward from a large-diameter part (40b) of a cutter rod (4) and having cylindrical surfaces (7c) of a cylinder of a radius equal to that of the large-diameter part (40b). The movable cutting tool (7) is attached to a flat surface (40c) formed in the cutter rod (4) with the cylindrical surfaces (7c) in close contact with the circumference of the large-diameter part (40b) of the cutter rod (4) to bear external force exerted on the protruding parts (7b) by the cutter rod (4).
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