Tuning machine for stringed instruments
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 1, 2022
Grant Date -
Jun 25, 2020
app pub date -
Apr 27, 2018
filing date -
Apr 27, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A tuning machine for a stringed instrument comprising an input shaft having an eccentric at an end and being rotatable by a user, a gear member with a central axial bore to receive the eccentric to move the gear member though an eccentric circular motion as the input shaft rotates, the gear member having external teeth, a ring gear having internal teeth positioned around the external teeth of the gear member, the ring gear accommodates the gear member such that at least one of the external teeth meshes with and drives at least one of the internal teeth as the gear member moves through its eccentric circular motion to rotate the ring gear about its central axis, and a string post driven by the ring gear to wind or unwind a string of the instrument as a result of rotation of the input shaft.
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