公开(公告)号：US6160686A

公开(公告)日：2000-12-12

申请号：US79255

申请日：1998-05-14

申请人： Thomas R. Albrecht ,  Charles H. Heino, Jr. ,  Tsai-Wei Wu

发明人： Thomas R. Albrecht ,  Charles H. Heino, Jr. ,  Tsai-Wei Wu

IPC分类号： G11B21/12 ,  G11B5/54 ,  G11B5/55 ,  G11B21/22 ,  G11B33/14

CPC分类号： G11B21/22 ,  G11B5/5565

摘要： A ramp structure that is designed to reduce the amount of thermal expansion induced misalignment (changes in ramp-disk spacing) between load/unload ramps and data storage disks of a data storage device. The ramp structure has a rigid support structure and ramp units attached to the rigid support structure. The ramp units are made of plastic that is particularly suited for use as load/unload ramps. The ramps are mechanically connected only by means of being attached to the rigid support structure. The data storage disks are attached to a spindle. The rigid support structure is made of a material that has a thermal expansion coefficient that is equal to the thermal expansion coefficient of the spindle and any other parts to which the disks are attached. As a temperature change causes the spindle to expand and the spacing between disks to change, the rigid support structure expands at the same rate, thereby maintaining alignment between the ramps and the disks. Preferably, each ramp unit has two ramps, but each ramp unit can have a single ramp.

摘要翻译： 斜坡结构设计用于减少数据存储设备的加载/卸载斜坡与数据存储盘之间的热膨胀引起的未对准（斜坡盘间距的变化）。 斜坡结构具有刚性支撑结构和附接到刚性支撑结构的斜坡单元。 斜坡单元由塑料制成，特别适合用作装载/卸载斜坡。 斜坡仅通过附接到刚性支撑结构机械连接。 数据存储盘连接到主轴。 刚性支撑结构由具有与主轴的热膨胀系数相等的热膨胀系数的材料制成，以及与其相连的任何其它部件。 当温度变化导致主轴膨胀并且盘之间的间隔改变时，刚性支撑结构以相同的速率膨胀，从而保持斜面和盘之间的对准。 优选地，每个斜坡单元具有两个斜坡，但是每个斜坡单元可以具有单个斜坡。