Patent ID: 6591449
Filing Date: 2003-07-15
Classification: B60B,Y10T

Abstract:
A castor assembly comprises stem (2) which is adapted at the upper end (4) thereof to be connected to the base of a structure to be supported, a foot (5), a castor body (3) swivellably mounted on the stem (2), a castor wheel (12) carried by the castor body, the rotational axis (13) of the castor wheel being offset from the axis of the stem to provide castoring and a thrust bearing (19) positioned at the upper end of the castor body, characterized in that the foot (5) is carried by the lower end of the stem (2), the stem is adapted to be adjustably threadedly engaged with a threaded bore in said base of said structure to be supported whereby adjustment of the stem upper end (4) causes the foot to be raised or lowered relative to the base, the castor body (3) is arranged to be capable of vertical sliding movement relative to the stem (2), and the thrust bearing (20) is arranged to bear the vertical load acting between the castor body and the base when the foot (5) is lifted clear of the floor and the castor wheel is supporting the structure.