Wire feed mechanism
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United States of America Patent
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Jun 2, 2020
Grant Date -
Jan 4, 2018
app pub date -
Jan 6, 2016
filing date -
Jan 13, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
The wire feed mechanism includes a feed roll, a pressure roll, a pressure arm, and a pressure mechanism. The feed roll rotates around a rotation axis. The pressure roll is displaceable relative to the feed roll. The pressure arm has a first end and a second end that are separate from each other, and rotatably supports the pressure roll. The pressure mechanism engages with the pressure arm so that a pressure force is applied from the pressure roll to the feed roll with a wire held between the feed roll and the pressure roll. A force-receiving portion is provided at an end of the pressure arm. When the pressure roll presses the feed roll, the pressure mechanism applies a force to the force-receiving portion in a direction that is substantially parallel to the direction in which the wire is fed.
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