TONEARM UNIT AND PLAYBACK DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Feb 20, 2020
app pub date -
Oct 23, 2017
filing date -
Oct 23, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A tonearm unit includes: an arm member having a tip to which a cartridge is attached; and a raising and lowering mechanism which raises and lowers the arm member with respect to a phonograph record along an axis. The raising and lowering mechanism includes: a cam base supporting the arm member; a ring cam provided to be rotatable about the axis with respect to the cam base; a first guide portion on the cam base, extending at an angle along a rotation direction of the ring cam; and a second guide portion on the ring cam, extending at an angle along the rotation direction so as to face the first guide portion. When the ring cam rotates with respect to the cam base, the cam base is raised and lowered with respect to the ring cam as a result of the second guide portion sliding along the first guide portion.
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