Patent ID: 8087127

Claim:
A castor for a piece of furniture, the castor comprising: a castor casing having a wheel casing defining a first axis for rotation of and supporting wheels, a swivel casing defining a second axis that is substantially perpendicular to the first axis and about which the castor casing can pivot, said wheels mounted to rotate relative to the wheel casing via a rotary shaft on said first axis, and means for fastening the swivel casing to allow the swivel casing to pivot, wherein said castor casing comprises: first and second units, each unit being made as a single piece, said first unit comprising a first portion of the wheel casing and a second portion of the swivel casing, said second unit comprising a third portion of the wheel casing and a fourth portion of the swivel casing, the first and second units forming the castor casing such that the first and third portions engage to form the wheel casing and the second and fourth portions engage to form the swivel casing; the first portion comprises first and second substantially parallel walls defining a first space, the first and second walls being substantially perpendicular to the first axis and parallel to the second axis, each having a respective orifice centered on said first axis and having a cross section that is complementary to a cross-section of the rotary shaft; the third portion comprises third and fourth substantially parallel walls defining a second space therebetween, the third and fourth walls being substantially perpendicular to the first axis and parallel to the second axis, said third and fourth walls being arranged to be plugged into the first space, each of the third and fourth walls having a respective orifice centered on said first axis and having a cross section that is complementary to the cross-section of the rotary shaft, and means for securing said two units together, wherein the rotary shaft passes through the orifices of the first, second, third, and fourth walls.