| 摘要 |
<p>The invention relates to a device which can be fitted to the wheels (1) of a trolley in order to improve the manoeuvrability thereof. Each of said wheels (1) are joined to the frame of the trolley by means of a vertical pivot pin (4) which can move in relation to the frame in a translatory movement according to the axis thereof (X) around which the wheel (1) can turn, comprising first means (5, 9) which are associated with said frame and which can rest against second means (10) which are joined to the wheel (1), characterized in that the first means (5,9) are joined to the frame.</p> |
