Automatic reversing mechanism for a rock drill
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United States of America Patent
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Aug 16, 2022
Grant Date -
Oct 22, 2020
app pub date -
Apr 17, 2020
filing date -
Apr 17, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A rock drill automatic reversing system can comprise a rifle bar which can comprise a groove end and a pawl end, wherein the groove end has helical shaped grooves, a double pawl comprising a body, a first wing, and a second wing, a first pawl support having at least one first slot opening in a first radial direction and a second pawl support having at least one opposing slot opening in an opposing radial direction. At least one ring gear guide, and at least one control key rod that transverses parallel to the axis of the rifle bar within the first pawl support and the second pawl support to interact with the double pawl to change the direction of the rock drill depending on the at least one control key rod's state.
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