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Disk recording or reproducing device with pickup inclination adjusting mechanism

A reproducing device and pickup technology, which is applied in optical recording/reproducing, data recording, transducing head device, etc., can solve problems such as inability to reproduce discs, inability to operate the focus servo mechanism correctly, etc.

Inactive Publication Date: 2004-04-21
SANYO ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the value of h is large, it exceeds the amount that the objective lens 22 can move up and down, and a fault that the focus servo mechanism cannot operate correctly will occur.
Therefore, there is a problem that the disc cannot be reproduced correctly.

Method used

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  • Disk recording or reproducing device with pickup inclination adjusting mechanism
  • Disk recording or reproducing device with pickup inclination adjusting mechanism
  • Disk recording or reproducing device with pickup inclination adjusting mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0029] (the whole frame)

[0030] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0031] FIG. 1 is a perspective view of the disc recording or reproducing device of the present embodiment. The structure in which the pick-up 2 is guided by the guide shaft 4 to approach or leave the turntable 3 is the same as that of the prior art. This embodiment is characterized by an inclination adjustment mechanism 5 that adjusts the inclination of the guide shaft 4 in a plane that includes the moving direction of the pickup 2 and is perpendicular to the upper surface of the chassis 1 .

[0032] A motor M is provided on the side of the chassis 1 , and the motor M is connected to a rack 20 provided on the side of the pickup 2 via a gear mechanism 21 . When the motor M is energized,...

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PUM

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Abstract

Brackets (9, 9) for supporting respective opposite ends of a guide rod (4) are provided with respective cam faces (95, 95) approximately symmetric about an approximate longitudinal midportion (C) of the guide rod (4), and at least one of the brackets (9) is provided with an adjusting member for moving the guide rod (4) longitudinally thereof. The cam faces (95) guide the guide rod (4) toward a direction in which the guide rod (4) pivotally moves about the approximate longitudinal midportion (C), as the guide rod (4) is moved longitudinally thereof by the adjusting member.

Description

technical field [0001] The present invention relates to a disc recording or reproducing device having an inclination adjustment mechanism for adjusting the inclination of a pickup relative to a signal surface of a disc. Background technique [0002] Figure 4 It is a perspective view showing a conventional disc recording or reproducing device. The chassis 1 includes a turntable 3 on which a known disk 7 is placed, and a pickup 2 provided so as to be close to or separate from the turntable 3 . The pickup 2 has an objective lens 22 on its upper surface, and is guided by two guide shafts 4, 4 on the chassis 1 to move. Both end portions of each guide shaft 4 are respectively fitted into brackets 9 , 9 disposed near the turntable 3 on the chassis 1 . [0003] Figure 5 It is a schematic diagram showing the inside of the disc 7 . On the signal surface of the disc 7, a plurality of grooves 73, 73 are concavely arranged along the circumferential direction. The intensity is diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/08G11B7/085G11B21/02
CPCG11B21/025G11B7/08582G11B7/082
Inventor 前田修
Owner SANYO ELECTRIC CO LTD