CUTTING TOOLS HAVING MOVABLE COVER MOUNTING STRUCTURES
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United States of America Patent
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N/A
Issued Date -
Jan 26, 2012
app pub date -
Jul 20, 2011
filing date -
Jul 22, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A cutting tool includes a tool unit having a rotary cutting blade, a movable cover configured to cover the rotary cutting blade, and a rotary support member mounted to the tool unit and rotatably supporting the movable cover about a rotational axis. The rotary support member and the movable cover has contact surfaces that slidably contact with each other or slidably contact with contact surface of an intermediate member interposed between the rotary support member and the movable cover. At least one of the contact surfaces includes a groove formed therein, so that the groove can receive cutting powder or chips produced by the rotary cutting blade during a cutting operation and entering between the movable cover and the rotary support member.
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