| 摘要 |
A castor for shopping and hospital trolleys which provides enhanced steering and manoeuvrability of the trolley, wherein a fork ( 13 ) of the castor is freely rotatable on a first bearing ( 15 ) with respect to a first member ( 16 ) connected to the fork ( 13 ), while the first member ( 16 ) is also freely rotatable on a second bearing ( 20 ) with respect to a second member ( 21 ) connected to the first member by a bolt ( 17 ). The second member may be connected to a frame or chassis ( 24 ) of a load bearing object such as a trolley. |
