Magneto-optical disc recording and/or reproducing device

a technology of magneto-optical discs and reproducing devices, which is applied in the field of recording and/or reproducing devices, can solve the problems of poor power transmission efficiency of magneto-optical disc recording/reproducing devices, poor reliability, and interference of the ejection lever 108/b> with the connection member,

Inactive Publication Date: 2005-01-27
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0030] Thus, it is an object of the present invention to provide a new recording and/or reproducing device which...

Problems solved by technology

If the ejection lever 108 is arranged in this manner, there is a risk that the ejection lever 108 may interfere with the connection member 107.
Therefore, it is difficult to assemble the device and realize the position accuracy of the connection parts.
Moreover, the magneto-optical disc recording/reproducing device has a poor power transmission efficiency and lacks reliability.
Therefore, these members occupy a large area...

Method used

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  • Magneto-optical disc recording and/or reproducing device
  • Magneto-optical disc recording and/or reproducing device
  • Magneto-optical disc recording and/or reproducing device

Examples

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Embodiment Construction

[0067] An embodiment in which the present invention is applied to a magneto-optical disc recording / reproducing device will now be described.

[0068] A disc cartridge 2 used in a magneto-optical disc recording / reproducing device 1 of the present invention will be first described. The disc cartridge 2 has a flat rectangular cartridge case 3 and has a magneto-optical disc 4 rotatably housed in the case 3, as shown in FIG. 7. At a center portion on the lower side of the cartridge case 3 having the magneto-optical disc 4 housed therein, a center bole for exposing a disc hub, not shown, attached at a center portion of the housed magneto-optical disc 4 is formed. Also, on the lower side of the cartridge case 3, a pickup access hole for causing the signal recording surface of the magneto-optical disc 4 to face an optical pickup is formed. At the position facing the pickup access hole on the upper side of the cartridge case 3, a head access hole 5 is formed for causing a magnetic head for rec...

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PUM

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Abstract

A recording/reproducing device using a magneto-optical disc as a recording medium having a holder for holding a magneto-optical disc and moving the magneto-optical disc between a disc unloading position and a disc loading position, a turntable for rotating the magneto-optical disc, an optical pickup for casting a light beam onto a signal recording surface of the magneto-optical disc, a magnetic head arranged to face the optical pickup on the opposite sides side of the magneto-optical disc and moving toward and away from the magneto-optical disc, and a rotating ejection lever positioned on a base for ejecting the magneto-optical disc held by the holder. Since the ejection lever is arranged on the side of the base where the optical pickup is arranged, the space within the device body is effectively used, thus realizing miniaturization.

Description

TECHNICAL FIELD [0001] This invention relates to a recording and / or reproducing device which uses a magneto-optical disc as a recording medium, and particularly to a magneto-optical disc recording and / or reproducing device which enables miniaturization by realizing effective use of the space and realizes simplification of the mechanism. BACKGROUND ART [0002] As a magneto-optical disc recording / reproducing device which uses a magneto-optical disc as a recording medium, a device constituted as shown in FIGS. 1 and 2 is conventionally used. In this recording / reproducing device, a rotational driving section 103 for rotationally driving a magneto-optical disc is provided substantially in a center portion of a flat plate-like base 102 arranged inside a device body 101, as shown in FIG. 1. In a portion of the base 102 which extends to one lateral edge from the portion where the rotational driving section 103 is provided, an optical pickup 104 is arranged so as to move away from the rotatio...

Claims

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Application Information

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IPC IPC(8): G11B11/00G11B11/105G11B17/04
CPCG11B17/046G11B11/10558G11B17/0466G11B2220/2525
Inventor TAMURA, KENICHINAKAMURA, TADAMIYAMADA, TOMOHIROKURITA, KAZUHITOMINOWA, SATORUTAKAMATSU, TAKASHI
Owner SONY CORP
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