Disk transferring device that employs a fixed disk guide support

Details Disk transferring device that employs a fixed disk guide support Disk transferring device that employs a fixed disk guide support

1996-03-05

1999-01-05

Levy, Stuart S.

Dynamic information storage or retrieval

With particular cabinet structure

Slotted for edgewise insertion of storage disc

369 752, G11B 3302

Patent

active

058569669

ABSTRACT:
A disk transport mechanism for a disk player employs a fixed disk guide to support one edge of a disk and a drive-side disk guide, with a revolving belt, to support and drive an opposite edge of the disk. The disk is held between the fixed and drive-side disk guides to press the revolving belt against the disk edge causing the disk to roll along the fixed disk guide. The disk is positioned by registering its position using an engaging flap near an insertion aperture. Eject, playback, and storage positions are established by cumulating pulses from an encoder, connected to the belt drive, as the belt moves from a registration position to the target position. The fixed and drive-side disk guides are movably supported on a chassis and urged together by a spring. The guides have sufficient range of movement to accommodate 80 and 120 mm disks. The revolving belt is supported by a wall that prevents the belt from bowing under the force of the disk edge. Because the belt follows a linear path, the disk center follows a linear path. In addition, the disk center position is a linear function of displacement of the encoder. This makes design of the positioning logic simpler and therefore storable in a smaller memory. In addition, the present invention makes positioning reliable since the variable stretch properties of the belt do not have to be considered.

REFERENCES:
patent: 3141676 (1964-07-01), Zarm
patent: 4470136 (1984-09-01), Takahashi et al.
patent: 4674079 (1987-06-01), Agostini
patent: 4682320 (1987-07-01), d Alayer de Costemore d'Arc
patent: 4979160 (1990-12-01), Araki
patent: 5371640 (1994-12-01), Kvifte et al.
patent: 5561658 (1996-10-01), Nakamichi et al.

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