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Dynamic vibration absorber and optical disk device

A technology of optical disc device and shock absorber, which is applied in the direction of poor vibration/sound insulation/absorption, head configuration/installation, flat record carrier equipment, etc., can solve problems such as the inability to use dynamic shock absorbers, and achieve the effect of eliminating design restrictions

Inactive Publication Date: 2007-06-06
YAMAUCHI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As shown in FIG. 5, since the dynamic shock absorbing member 55 is mounted on or below the base frame 52 through the elastic bodies 54a, 54b, in order to ensure a structural gap with the optical disc and a gap with the housing, it is subject to design constraints. limit
In addition, dynamic shock absorbers have not been able to be used in thin models and thin drivers for notebook computers so far because they must have a specified thickness.

Method used

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  • Dynamic vibration absorber and optical disk device
  • Dynamic vibration absorber and optical disk device
  • Dynamic vibration absorber and optical disk device

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Embodiment Construction

[0025] Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing a dynamic shock absorber according to an embodiment of the present invention and an optical disc device using the same, and FIG. 2 is a cross-sectional view of a portion indicated by II-II in FIG. 1 . In addition, in FIG. 2, hatching is not drawn with respect to a dynamic shock absorber. Also, in this embodiment, the dynamic shock absorber based on the present invention is applied to a half-height optical disc device. In addition, the optical disc device here refers to a device that drives an optical drive such as CD, CD-ROM, DVD, DVD-ROM, or an optical disc such as a magneto-optical disc or a large-capacity floppy disc.

[0026] Referring to FIG. 1 and FIG. 2, the optical disc device 10 includes a rectangular planar base frame 11 and second elastic bodies 12a-12d provided at the four corners of the base frame 11, and through the second elastic bodies 1...

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Abstract

A dynamic vibration absorber comprises a base chassis (11) holding a spindle motor (13) rotatingly driving a mass-eccentric disk (unshown), a dynamic vibration absorbing element (14a) connected to the base chassis (11) through first elastic bodies (15a) and (15b), and a dynamic vibration absorbing element (14b) connected to the base chassis (11) through first elastic bodies (15c) to (15e). The base chassis (11) and the dynamic vibration absorbing elements (14a) and (14b) are installed on an approximately same plane.

Description

technical field [0001] The invention relates to a dynamic shock absorber and an optical disc device using the dynamic shock absorber, in particular to a flat dynamic shock absorber and an optical disc device using the dynamic shock absorber. Background technique [0002] For example, JP-A-2001-256762 and JP-A-2001-355670 disclose conventional dynamic shock absorbers for optical discs. FIG. 5 is a schematic diagram showing a simplified configuration of main parts of the optical disc devices disclosed in JP-A-2001-256762 and JP-A-2001-355670. [0003] Referring to FIG. 5 , in a conventional optical disc device, a spindle motor for rotationally driving the optical disc and a pickup head for reading information on the optical disc are mounted on a base frame 52, and the base frame 52 is mounted on a housing 51 through elastic bodies 53a and 53b. . [0004] In recent years, the rotational speed of optical discs has increased, and a dynamic shock absorber has been installed in o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B33/08
CPCG11B33/08A61P31/04G11B7/08G11B25/04
Inventor 齐藤利夫
Owner YAMAUCHI CORP
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