Automatic disc centering mechanism
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United States of America Patent
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-
Oct 1, 1991
Grant Date -
N/A
app pub date -
Feb 10, 1989
filing date -
Mar 2, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanism for centering discs of different diameters includes a generally flat plate containing a plurality of slots, a guide rotatably mounted on one side of the plate for rotation about the axis along which a disc is to be centered, at least three pins, each of which slidably engages one of the slots and protrudes through the plate for engaging the periphery of a disc to be centered, a separate linkage pivotally connected between each of the pins and the guide to coordinate the displacement of the pins in the slots according to the rotation of the guide, and a biasing spring urging the pins toward the ends of the slots closer to the axis. The centering mechanism is employed in a playback apparatus for records, particularly compact discs of different diameters.
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