Patent ID: 7930802

Claim:
A castor, comprising: an upright support post; a brake ring secured on a lower end of the support post and having an outer wall provided with a toothed locking portion; a castor body rotatably mounted on the support post and located between the support post and the brake ring; two rollers rotatably mounted on two opposite sides of the castor body and each having an inside provided with a toothed locking section; a first locking member movably mounted on the castor body and having a first end provided with two opposite locking flanges each having a toothed engaging portion facing the toothed locking section of a respective one of the two rollers; a second locking member movably mounted on the castor body and having a first end provided with a toothed engaging section facing the toothed locking portion of the brake ring; a brake handle pivotally mounted on the castor body and connected with the first locking member and the second locking member to drive the toothed engaging portion of each of the two locking flanges of the first locking member to engage the toothed locking section of the respective roller and to drive the toothed engaging section of the second locking member to engage the toothed locking portion of the brake ring; wherein the brake handle has a first side provided with a pivot base pivotally mounted on the castor body and a second side provided with a press portion to drive the pivot base to pivot relative to the castor body; the pivot base of the brake handle has a first end provided with two opposite first drive portions each abutting a second end of the first locking member to drive and move the first locking member relative to the two rollers and a second end provided with a second drive portion abutting a second end of the second locking member to drive and move the second locking member relative to the brake ring.