| 摘要 |
<p>The castor comprises a wheel (1) rotating around an axis (2). A clevis (3) comprising an arm (4) has a bearing (5) defining a second axis (6). The wheel rotates on a shaft (7) and a cheek web (8) is interposed between a lateral face of the wheel and the arm. The cheek web has the shape of a spherical pocket (34) centered on a third axis (35). There are members (10) for fastening the cheek web to the wheel so that the axes (2,35) are merged and member (30) to connect a point on the arm to the cheek web so that the axes (6,35) are merged.</p> |
