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公开(公告)号：US06859933B2
公开(公告)日：2005-02-22
申请号：US09982168
申请日：2001-10-19
申请人： Jun-min Park , Young-won Lee , Young-sun Seo
发明人： Jun-min Park , Young-won Lee , Young-sun Seo
CPC分类号： G11B33/08
摘要： A dynamic vibration absorber for a disk player includes a deck base, a deck plate movably disposed on the deck base to support a spindle motor that spins a disk, a mass body disposed around the deck plate, and a flexibly changeable connection member that connects the deck plate and the mass body. A dynamic vibration absorber including the mass and connection member reduces vibration generated when the disk spins using a reciprocal action of the mass body and the connection member relative to the deck plate.
摘要翻译： 一种用于盘式播放机的动态吸振器包括一个甲板基座，一个可移动地设置在甲板底座上以支撑旋转盘的主轴电机的甲板板，设置在甲板板周围的质量体，以及一个柔性可变连接件， 甲板和质量体。 包括质量和连接构件的动态减震器减少了当盘通过质量体和连接构件相对于甲板板的往复动作而旋转时产生的振动。
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公开(公告)号：US06948176B2
公开(公告)日：2005-09-20
申请号：US10308126
申请日：2002-12-03
申请人： Eun-hyoung Cho , Jin-seung Sohn , Jun-min Park
发明人： Eun-hyoung Cho , Jin-seung Sohn , Jun-min Park
CPC分类号： G11B17/0284 , G11B17/0285 , G11B33/08 , G11B33/1486
摘要： A cover plate for an optical disk drive designed to reduce disk vibrations and noise is provided. The cover plate is installed above a main frame of the optical disk drive and has a through hole in the center through which a disk clamp for clamping a disk placed on a turntable is fitted and a projection formed to oppose the disk up to a predetermined height in order to narrow a gap with the disk. Furthermore, the cover plate has a circular step formed opposite a surface corresponding to an outer circumference of the disk in the shape of an annular groove for lowering acoustic energy density of noise. The cover plate constructed in this way reduces disk vibration due to air damping effects resulting from a narrow gap between the disk and the cover plate while suppressing noise due to the presence of the abruptly expanded portion. Furthermore, the cover plate can be implemented without a separate device by making simple changes to the structure of cover plate.
摘要翻译： 提供了一种设计用于减少磁盘振动和噪声的光盘驱动器的盖板。 盖板安装在光盘驱动器的主框架的上方，并且在中心具有通孔，通孔将夹持放置在转盘上的盘的盘夹具装配，并且形成为与盘相对的突起形成预定高度 以缩小与磁盘的间隙。 此外，盖板具有与用于降低噪声的声能密度的环形槽形状的与盘的外周相对应的表面形成的圆形台阶。 以这种方式构造的盖板由于由于存在突然膨胀的部分而产生的噪声，由于盘和盖板之间的窄间隙导致的空气阻尼效应，减少了盘振动。 此外，通过对盖板的结构进行简单的改变，可以不用单独的装置来实现盖板。
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公开(公告)号：US06532210B2
公开(公告)日：2003-03-11
申请号：US10001993
申请日：2001-12-05
申请人： Jun-min Park
发明人： Jun-min Park
IPC分类号： G11B584
CPC分类号： G11B23/0035 , G11B7/24 , G11B7/24003 , G11B7/24047
摘要： A disk-type recording for protection of media recording and/or reproduction units, including an information recording surface portion disposed around a center hole and a crack hindering element to hinder the generation of a crack at the center hole from advancing to an outer edge of the disk-type recording media. The crack hindering element includes at least one annular protrusion portion protruded around the center hole.
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