| 摘要 |
The present invention includes an adjustable-height castor assembly for use with racks such as racks used to house computer servers. The castor assembly includes a frame or housing which may be fastened to a bottom of a rack. The castor assembly further includes a threaded vertical shaft with a round member (e.g., a swivel wheel or sphere) attached to the lower end of the vertical shaft. The wheel may be directly attached to the vertical shaft or indirectly attached to the vertical shaft via a castor plate or other support structure. The vertical shaft extends through a tapped support in the frame such that rotation of the vertical shaft raises or lowers the frame along the vertical shaft. The castor assembly further includes a drive shaft having a drive gear. A mating gear is mounted on the vertical shaft. The mating gear and the drive gear mesh or interlock such that when the drive gear rotates, the mating gear rotates. Accordingly, rotating the drive shaft rotates the mating gear and vertical shaft thus raising or lowering the rack. The drive shaft may be driven by, for example, a power tool such as a drill. Methods and systems for adjusting castor assembly height are also provided.
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