Reinforcing bar binding machine, wire reel, wire, and method of determining kind of wire
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United States of America Patent
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Feb 28, 2012
Grant Date -
Feb 10, 2011
app pub date -
Oct 13, 2010
filing date -
May 7, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A wire reel containing portion 3 of a reinforcing bar binding machine 1 is provided with a rotation detecting lever 8 and a photosensor 7. When a wire reel is rotated in starting to bind a wire, rotation thereof is detected by the rotation detecting lever switched ON/OFF by a projected portion formed at a side face of the wire reel, the photosensor detects a reflection mark of the wire reel to determine a kind of the wire from a number of the marks, and a twist torque or the like is controlled. Wire information is detected not in an initializing operation (in setting wire) of rotating the wire reel at low speed but in a binding operation of rotating at high speed and therefore, an amount of swinging the rotation detecting lever is large and wire information can firmly be detected.
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