Patent ID: 9630450
Date: 2017-04-25
CPC Classifications: A45C,B60B

Claim:
1. A castor for a suitcase, comprising: a fixed seat, a wheel support, a hollow axle, a roller module, and two caps; wherein: the fixed seat is mounted on four corners of a bottom of a suitcase and has a bottom face provided with a receiving recess for mounting the wheel support; the wheel support is provided with two ears extending downward from two opposite sides thereof; each of the two ears is provided with a transverse axle hole for mounting the hollow axle; the transverse axle hole of each of the two ears has an inner peripheral wall provided with a plurality of locking grooves for locking each of the two caps; the transverse axle hole of each of the two ears has an outer side provided with an inner stepped edge; the hollow axle extends through the transverse axle hole of each of the two ears and has an outer diameter equal to an inner diameter of the transverse axle hole of each of the two ears; the roller module is mounted on an outer peripheral portion of the hollow axle; the roller module is arranged between the two ears of the wheel support and is rotatable freely on the hollow axle; and each of the two caps is provided with a plurality of locking hooks locked into the locking grooves of the transverse axle hole of one of the two ears.