US 6,639,881 B2Granted

Disc reproduction device

AssigneeVictor Company of Japan, Ltd.

InventorMotoharu Ogawa

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Abstract

Trays including disc mounting portions for mounting discs are divided into seven trays for each disc. Portions of the discs except for the disc positioned at a reproduction state overlap with adjacent discs. Accordingly, seven discs can be held despite that a diameter of an entire assembly including all seven trays rotatively moving around a central shaft is equal to that of a large tray of a conventional disc reproduction device of a carrousel type capable of holding five discs. The constitution also includes an interlocking mechanism of the discs, a sliding mechanism where the trays rotatively move around the central shaft horizontally and upward/downward obliquely while maintaining parallelism, and driver for providing a period of time in which trays at a middle stage in the beginning of one stroke and trays reaching the middle stage are still during a time period for one stroke.

Claims4

Dependent claims

A disc reproduction device comprising:

a plurality of disc mounting portions for holding discs arranged around a central shaft, which is rotatively moved by a rotation drive mechanism;
and
a reproduction unit, where said plurality of disc mounting portions are rotatively moved around the central shaft one stroke by one stroke, the one stroke being a movement of the disc mounting portion to a position of an adjacent disc mounting portion, and where the reproduction unit is set to reproduce the disc held in the disc mounting portion positioned on the reproduction unit,
wherein said disc mounting portions include:
independent trays divided for each disc;
and driver for moving each of the trays horizontally or upward/downward obliquely in a parallel manner around the central shaft in each stroke such that each of said trays is at a bottom stage when being at a reproduction position on said reproduction unit and is not overlapping with other trays, is at a top stage when being at a disc exchange position, and is at a middle stage or the bottom stage during other standby state and a portion of the tray overlaps with an adjacent tray.

3 more elements

Dependencies are inferred from the claim text.