Castor for Luggage

摘要

A castor for a luggage includes a mounting seat, an upright mandrel having an upper portion connected with the mounting seat, a roller support mounted on a lower portion of the upright mandrel, a shaft mounted on the roller support, and two rollers secured on two opposite ends of the shaft and located at two opposite side of the roller support. Thus, when the rollers on the roller support are worn out during a long-term utilization, the roller support can be removed from the upright mandrel for maintenance or replacement of the roller support and the rollers, without having to replace the whole structure of the castor.

主权项

1. A castor for a luggage, comprising:
a mounting seat; an upright mandrel having an upper portion connected with the mounting seat; a roller support mounted on a lower portion of the upright mandrel; a fastening member extended through the roller support and locked onto the lower portion of the upright mandrel to combine the roller support with the upright mandrel; a shaft mounted on the roller support; and two rollers secured on two opposite ends of the shaft and located at two opposite side of the roller support; wherein: the mounting seat is provided with an upright through hole; the roller support is provided with a shaft hole; the roller support has a top provided with a receiving hole; the roller support has a bottom provided with a screw bore which is connected to the receiving hole; the shaft is extended through the shaft hole of the roller support; the upper portion of the upright mandrel is extended through the through hole of the mounting seat and is secured on the mounting seat so that the upright mandrel is combined with the mounting seat; the lower portion of the upright mandrel is inserted into the receiving hole of the roller support; the lower portion of the upright mandrel is stopped by a bottom wall of the receiving hole of the roller support; the lower portion of the upright mandrel is provided with a threaded recess aligning with the screw bore of the roller support; and the fastening member is extended through the screw bore of the roller support and is screwed into the threaded recess of the upright mandrel so that the roller support is combined with the upright mandrel.