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Disc apparatus

A technology for trays and discs, which is applied in the direction of recording information storage, instruments, and planar record carrier equipment, etc., and can solve the problem of being unable to effectively limit floating

Inactive Publication Date: 2008-12-24
VICTOR CO OF JAPAN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In detail, reducing the air pressure above the inside of the disc depends on the height and / or number of protruding elements 104, the gap between the disc 2 and the elements 104, etc., which may result in an ineffective limitation of floating

Method used

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  • Disc apparatus
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Embodiment Construction

[0024] FIG. 1 is an exploded perspective view of a disk device MA according to an embodiment of the present invention. The disk device MA is enclosed in a box-like housing 10 . The housing 10 includes a housing main body 1 with an open top and a top plate (protective member) 6 covering the top of the housing main body 1 . Such a structure achieves an airtight state in the housing 10, substantially free from dust contamination and the like.

[0025] A turntable 3 is provided in the casing 10, and is attached to the rotating shaft of a motor 11 as a spindle motor. The disc 2 is detachably placed on the turntable 3 . The optical pickup 4 is installed in the turntable 3 and can reciprocate under the disk 2 along the radial direction of the disk. The pickup 4 is used for recording to or reproducing from the disc 2 . Motor 11 is installed on the base 9 that is fixed on casing main body 1, as Figure 5 shown, will be described later.

[0026] The housing main body 1 has a tray ...

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Abstract

A disc apparatus for recording or reading data to or from a disc includes a tray having a table on which the disc is placed and a shielding member that covers the tray. The shielding member has a circular opening and a plurality of arc protruding members. Each arc protruding member is provided on an inner surface of the shielding member that covers the tray as protruding towards an upper surface of the disc placed on the table of the tray. An end of each arc protruding member is situated near the opening. Each arc protruding member has a protruding end with a height ranging from 1.0 mm to 1.5 mm from the inner surface of the shielding member.

Description

[0001] Cross References to Related Applications [0002] This application is based on the prior Japanese patent applications No. 2005-137888 filed on May 10, 2005 and No. 2006-010821 filed on January 19, 2006 and claims priority as the present application, the entire contents of which are in Included in this application by reference. technical field [0003] The present invention relates to a disc device for reading from or writing to discs such as CD (Compact Disc) and DVD (Digital Versatile Disc), and the like. In particular, the present invention relates to a disk device operable to limit the floating of the disk due to the rotation of the motor. Background technique [0004] Known disc devices rely on an optical pickup to read from or write to discs such as CDs and DVDs while the mounted disc is rotating at high speed. The disk is placed on the turntable by the clamping device and can be rotated on the turntable by means of the turntable motor. [0005] In such a disk...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B17/022G11B25/04
Inventor 德永智士
Owner VICTOR CO OF JAPAN LTD
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