| 摘要 |
<p>The invention concerns a trolley comprising a frame mounted on swivel castor devices, at least two devices (3) being provided at one first end of the trolley, said two swivel castor devices (3a) being located on either side of the trolley longitudinal axis respectively. Each of said devices (3a) of said first end comprises means locking (16) the castor swivelling in one direction; said locking means (16) are adapted to allow the castor free to pivot in one direction with sufficient amplitude, and locking the swivelling in the other direction. The locking directions are opposed for the two swivel castors of the first end of the trolley located on either side of the mean longitudinal axis of the trolley. A locking device (16) includes a finger (17) provided with a ramp (24) and extending in a U-shaped cutout (19) into an upturned spring retainer (14).</p> |
